CN201789056U - Z-axis antenna for automobile antitheft device and keyless entry system - Google Patents
Z-axis antenna for automobile antitheft device and keyless entry system Download PDFInfo
- Publication number
- CN201789056U CN201789056U CN2010202819522U CN201020281952U CN201789056U CN 201789056 U CN201789056 U CN 201789056U CN 2010202819522 U CN2010202819522 U CN 2010202819522U CN 201020281952 U CN201020281952 U CN 201020281952U CN 201789056 U CN201789056 U CN 201789056U
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- magnetic core
- base
- antenna
- access system
- shaped magnetic
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Abstract
The utility model relates to a Z-axis antenna for an automobile antitheft device and a keyless entry system, which comprises an I-shaped magnetic core, wherein a wire winding groove is arranged in the I-shaped magnetic core, a coil is wound in the wire winding groove, the lower part of the I-shaped magnetic core is provided with a base, two metal blocks are embedded in the base, one end of the metal blocks is exposed out of the base and is a needle foot, the other end is exposed out of the base and is a welding disc, lead wires arranged at both ends of the coil are respectively connected with two needle feet, and a foam plastic sheet is covered on the upper surface of the I-shaped magnetic core. Chamber angles are arranged on the upper edge of the I-shaped magnetic core. The utility model has the advantages that the Z-axis antenna has a high sensitivity and high mechanical performance at a lower frequency band, the Z-axis antenna particularly has good performance when being applied to falling experiments in automobile keys, more possibility can be provided for the economic manufacture, the Z-axis antenna is applicable to the patch type installation, the antenna has a flat surface and has the enhanced mechanical tensile performance for resisting the vibration impact in a box or in the automobile keys because of the foam plastic sheet arranged on the I-shaped magnetic core.
Description
Technical field
The utility model relates to a kind of antenna element, especially a kind of Z axle antenna that is applied to car alarm and keyless access system.
Background technology
Radio receiver-transmitter is exactly the antenna by the transmitting-receiving radiofrequency signal in fact, and the characteristic of utilizing electromagnetism to transform is carried out the exchange of energy, generally is used for the transmission of system data.
According to different purposes and operating frequency, antenna is divided into different kinds.Low-frequency antenna generally uses FERRITE CORE to promote its performance for reaching transmission characteristic preferably.Antenna both can be used as the device that transmits, and also can be used as the device of acknowledge(ment) signal.
The antenna that has needs a relatively more fixing directivity in the use of reality, and very high sensitivity, so that realize mutual emission and acceptance between transmission signals, reaches the purpose of high speed transmission data.But the antenna of Cun Zaiing is difficult to reach the electromagnetic induction in Z-direction in the market, so the appearance of Z axle antenna is a product of complying with the market demand.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of Z axle antenna that is applied to car alarm and keyless access system is provided, be a kind ofly to have the antenna element of sensitivity, can be widely used in automobile market and wireless industrial electricity frequency field in Z-direction.
The technical scheme that provides according to the utility model, the described Z axle antenna that is applied to car alarm and keyless access system comprises: an I shape magnetic core, in the middle of have a winding slot, coil winding is in winding slot, and I shape magnetic core bottom is provided with base, and base is embedded with two metal derbies, it is stitch that metal derby one end exposes base, it is pad that the other end exposes base, and the lead-in wire at described coil two connects two stitch respectively, and described I shape magnetic core upper surface covers foamed sheet.Described I shape magnetic core top edge is provided with chamfering.
Be provided with annular groove by covering place of I shape magnetic core on the described base, bonding between base and the I shape magnetic core by the adhesive in the annular groove.Described base can adopt plastic feet.The lead-in wire scolding tin at described coil two is on stitch.The lead-in wire that is preferably coil two is wrapped on the stitch, and on solder joint scolding tin.Strengthen under the situation of protection, described coil and lead-in wire are outer to be coated by adhesive.The copper wire diameter that described coil adopts and scribbles the insulating coating that heatproof is higher than 155 ℃ between 0.01～1 millimeter.
The utility model has the advantages that: the utility model is a kind ofly high sensitivity to be arranged very and the very Z axle antenna of high-mechanical property is arranged in low-frequency range, especially is applied in doing fall-down test good behaviour can be arranged in the car key, for economy make provide more may; Be suitable for SMD installation; Having foamed sheet on the I shape magnetic core makes the antenna have a flat surfaces and has strengthened mechanical stretching and keep out vibratory impulse in box or in the car key.
Description of drawings
Fig. 1 is preferred antenna shapes figure.
Fig. 2 is antenna mount figure.
Fig. 3 is the another kind of outline drawing of antenna.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, 2: the utility model comprises an I shape magnetic core 1, have a winding slot 10 in the middle of the I shape magnetic core 1, coil 3 is wound in the winding slot 10, coil 3 is in the face of space Z axle, I shape magnetic core 1 bottom is provided with base 6, base 6 is embedded with two metal derbies, metal derby one end exposes base 6 and is stitch 5-1,5-2, the other end exposes base 6 and is pad 2-1,2-2, the lead-in wire at described coil 3 two connects two stitch 5-1,5-2 respectively, and described I shape magnetic core 1 upper surface covers foamed sheet 8.Coil 3 when operating frequency its inductance value between 1 μ H～100mH.
The composition magnetic core of magnetic core 1 is made up of the material of nickel zinc, MnZn or any Co base amorphous magnetic core, first-selected Ferrite Material, more specifically say so nickel zinc or MnZn material, FERRITE CORE cydariform on a plane preferably on the Z axle.Above the I shape magnetic core winding slot with the size at following two ends can be the same also can be different.FERRITE CORE 1 is provided with chamfering 12 on the edge, avoid the cracking of ferrite in some zone.
The material that has the plastic feet 6 of stitch 5-1,5-2 is the high temperature of wanting to bear in the short time, especially can bear corresponding temperature that is used for the scolding tin section of paster reflow soldering normally, promptly must bear 280 ℃ of high temperature that continue 30 seconds durations.
Stitch 5-1,5-2 material use the phosphor bronze material.Pad 2-1,2-2 are respectively the sidewall that a facet is close to base 6 both sides.Provide the support of coiling and the solder joint of line and the last tie point of printed board (PCB) order of the plastics-FERRITE CORE of this mixing.Be provided with annular groove 13 by 1 covering place of I shape magnetic core on the base 6, be used for dispense adhesive, and under the situation of the total height that need not to increase element, FERRITE CORE 1 is installed.The mechanical property of this antenna element can satisfy with other components and parts and is placed in simultaneously on the PCB, and generally its thickness is no more than 3.5 millimeters.
Being connected of coiling and stitch 5-1,5-2 suits to twine, and goes up scolding tin then.
The utility model is in low-frequency range Z axle electromagnetic field to be had very high sensitivity and the very Z axle antenna of high-mechanical property is arranged, and especially is applied in doing fall-down test good behaviour can be arranged in the car key.
When components and parts are subjected to the electromagnetic spectrum signal, especially during to the influencing of the signal of 1MHz, coil 3 can induce voltage at 1kHz for radiofrequency signal and frequency, and the application in automobile of antenna element and receiver is similar to keyless access system.This antenna is mainly used in the transponder as automobile, especially in keyless access system and the vehicle in the monitoring of radio frequency.
This antenna that has plastic feet 6 and stitch 5-1,5-2 and pad 2-1,2-2 is suitable for SMD installation, has foamed sheet 8 on the I shape magnetic core 1 and makes the antenna have a flat surfaces and strengthened mechanical stretching and keep out vibratory impulse in box or in the car key.
This antenna product characteristic is as follows:
Good electric property and mechanical performance;
In-40 ℃～+ 125 ℃ temperature ranges, keep good stable;
The size of inductance can customize according to requirement of client;
At 20kHz and 40kHz excellent electric characteristics is arranged equally.
Claims (8)
1. be applied to the Z axle antenna of car alarm and keyless access system, it is characterized in that: comprise an I shape magnetic core (1), in the middle of have a winding slot (10), coil (3) is wound in the winding slot (10), I shape magnetic core (1) bottom is provided with base (6), base (6) is embedded with two metal derbies, it is stitch (5-1 that metal derby one end exposes base (6), 5-2), it is pad (2-1 that the other end exposes base (6), 2-2), the lead-in wire at described coil (3) two connects two stitch (5-1 respectively, 5-2), described I shape magnetic core (1) upper surface covers foamed sheet (8).
2. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1 is characterized in that described I shape magnetic core (1) top edge is provided with chamfering (12).
3. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1, it is characterized in that described base (6) upward is provided with annular groove (13) by I shape magnetic core (1) covering place, bonding between base (6) and the I shape magnetic core (1) by the adhesive in the annular groove (13).
4. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1 is characterized in that described base (6) is a plastic feet.
5. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1, the lead-in wire scolding tin that it is characterized in that described coil (3) two is on stitch (5-1,5-2).
6. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 5 is characterized in that the lead-in wire at described coil (3) two is wrapped on the stitch (5-1,5-2), and on solder joint scolding tin.
7. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1 is characterized in that being coated by adhesive outside described coil (3) and the lead-in wire.
8. the Z axle antenna that is applied to car alarm and keyless access system as claimed in claim 1 is characterized in that copper wire diameter that described coil (3) adopts between 0.01～1 millimeter, and scribbles the insulating coating that heatproof is higher than 155 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819522U CN201789056U (en) | 2010-08-04 | 2010-08-04 | Z-axis antenna for automobile antitheft device and keyless entry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819522U CN201789056U (en) | 2010-08-04 | 2010-08-04 | Z-axis antenna for automobile antitheft device and keyless entry system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789056U true CN201789056U (en) | 2011-04-06 |
Family
ID=43821010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202819522U Expired - Lifetime CN201789056U (en) | 2010-08-04 | 2010-08-04 | Z-axis antenna for automobile antitheft device and keyless entry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789056U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2459892A1 (en) * | 2012-11-12 | 2014-05-12 | Premo, S.L. | Three-dimensional antenna (Machine-translation by Google Translate, not legally binding) |
| CN107424732A (en) * | 2017-08-10 | 2017-12-01 | 浙江和兴电子有限公司 | A kind of encapsulated type inductance of I-shaped and manufacture method |
| CN114823225A (en) * | 2022-06-30 | 2022-07-29 | 江苏恒鹏智慧城市技术有限公司 | Relay suitable for automatically controlled illumination |
-
2010
- 2010-08-04 CN CN2010202819522U patent/CN201789056U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2459892A1 (en) * | 2012-11-12 | 2014-05-12 | Premo, S.L. | Three-dimensional antenna (Machine-translation by Google Translate, not legally binding) |
| CN107424732A (en) * | 2017-08-10 | 2017-12-01 | 浙江和兴电子有限公司 | A kind of encapsulated type inductance of I-shaped and manufacture method |
| CN107424732B (en) * | 2017-08-10 | 2023-07-07 | 浙江和兴电子有限公司 | I-shaped encapsulated inductor and manufacturing method thereof |
| CN114823225A (en) * | 2022-06-30 | 2022-07-29 | 江苏恒鹏智慧城市技术有限公司 | Relay suitable for automatically controlled illumination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |