CN2735558Y - Automotive Printed Antenna Device Using Induction to Increase Different Phase Reception - Google Patents

Abstract

A printed antenna device for increasing different phase signal receiving by induction is composed of a printed antenna coated on a car glass, an auxiliary antenna which is branched from a defogging line of said car glass and close to said printed antenna for inducing the received signal to said antenna, and a filter circuit for filtering out the noise received by said defogging line. By means of the large-area distribution mode of the defogging lines, signals with different phases can be received in an auxiliary mode, and then the signals are sensed to the printing antenna through the auxiliary antenna so as to improve the receiving efficiency.

Description

Automotive Printed Antenna Device Using Induction to Increase Different Phase Reception

【Technical field】

The utility model relates to an automobile glass printing antenna, in particular to an automobile printing antenna device which uses induction to increase signal reception in different phases.

【Background technique】

The telescopic whip antenna of the existing automobile is easy to be damaged due to external force, and it will cause poor contact after corrosion, resulting in low signal quality. In order to look beautiful and prolong the service life of the antenna, a special The antenna is printed on the glass of the car to produce a printed antenna and replace the existing telescopic whip antenna. However, the area of the printed antenna is not large, so the gain (Gain) of the antenna is limited, and it is still practical in practice. Poor reception, there are dead ends.

Therefore, as shown in FIG. 1 , an existing automobile glass printed antenna includes: a defogging line 1 , a printed antenna 2 , and a filter circuit 3 .

Wherein, the printed antenna 2 is very close to the defogging line 1 in order to improve the receiving efficiency, so that the radio signal received by the defogging line 1 is induced to the printed antenna 2 to assist the defogging line 1 by induction. Print the receiving efficiency of the antenna 2, and finally use the filter circuit 3 to filter out noise, and provide the car radio 4 for radio use. In actual operation, this kind of automotive glass printed antenna improves the gain of the printed antenna for separate reception, but it has more defects as follows:

1. The defogging line 1 has a large area to receive radio signals in all directions, and the printed antenna 2 is quite close to assist receiving by induction, so various noises relative to the receiving channel, especially the extremely strong car ignition The noise is further amplified by auxiliary and interferes with the originally pre-received channel, and the filter circuit 3 only uses two choke coils 301, 302 to isolate the noise, but it cannot actually isolate the noise generated by the ignition system.

2. The filter circuit 3 is composed of the choke coils 301, 302. The choke coils 301, 302 need to cut off the serially connected transmission lines 401, 402 during construction, and then connect them by welding or crimping. It is labor-intensive and time-consuming, relatively reducing production efficiency, and the transmission lines 401, 402 are part of the power circuit of the defogging line 1, the current flowing through them is not small, and the four additional contacts (the choke coils 301, 302 each There are two contacts), which is undoubtedly the main reason for increasing the failure rate and defective rate in the future.

【Content of utility model】

The purpose of this utility model is to provide a car that uses the defogging line laid on the car glass to assist in receiving signals of different phases, and then senses them from an auxiliary antenna to a printed antenna to improve the receiving efficiency. Printed antenna device.

The utility model uses induction to increase the signal receiving of different phases of the automobile printed antenna device, which is arranged on an automobile glass with several defogging lines, and includes a printed antenna coated on the automobile glass, a An auxiliary antenna branched from a defogging line, and a filter circuit. The printed antenna is coated near the defogging line of the automobile glass. The auxiliary antenna is extended from the defogging line of the car glass, one end of which is connected to the defogging line, and the other end is open to the printed antenna to receive the signal received by the defogging line in a predetermined pattern and at a predetermined distance sensed to the printed antenna. The filter circuit can filter noise and isolate the signal of the receiving frequency band without being grounded and keep it on the defogging line and the auxiliary antenna, and has at least one pair of hollow cylinders, which are respectively sleeved on the positive and negative sides of the power supply of the defogging line. The ferrite core magnet of the loop, at least one pair of yoke coils connected in series to the positive and negative loops of the defogging line power supply and wound around a circular magnetic core, and at least one filter connected in parallel to the positive and negative terminals of the defogging line power supply loop capacitance.

【Description of drawings】

The following is a detailed description of the automobile printing antenna device of the utility model that increases different phase reception by induction through the best embodiment and accompanying drawings. In the accompanying drawings:

Fig. 1 is a wiring diagram of an existing automotive glass printed antenna;

Fig. 2 is a wiring diagram of the first preferred embodiment of the utility model;

Fig. 3 is the partial sectional view of above-mentioned preferred embodiment of the utility model, illustrates the structure of a ferrite core magnet;

Fig. 4 is the three-dimensional schematic diagram of above-mentioned preferred embodiment of the utility model, illustrates the structure of two yoke current coils and circular magnetic core;

Fig. 5 is a wiring schematic diagram of the second preferred embodiment of the present invention;

Fig. 6 is a partially enlarged schematic diagram of the auxiliary antenna of the third preferred embodiment of the present invention, illustrating the location and structure of the auxiliary antenna;

Fig. 7 is a partially enlarged schematic diagram of the auxiliary antenna of the fourth preferred embodiment of the present invention, illustrating the location and structure of the auxiliary antenna;

Fig. 8 is a partially enlarged schematic diagram of the auxiliary antenna of the fifth preferred embodiment of the present invention, illustrating the location and structure of the auxiliary antenna;

Fig. 9 is a partially enlarged schematic diagram of the auxiliary antenna of the sixth preferred embodiment of the present invention, illustrating the location and structure of the auxiliary antenna;

Fig. 10 is a partially enlarged schematic diagram of the auxiliary antenna of the seventh preferred embodiment of the present invention, illustrating the location and structure of the auxiliary antenna.

【Detailed ways】

For convenience of description, in the following embodiments, the same components are denoted by the same reference numerals.

As shown in Figure 2, the first preferred embodiment of the utility model to increase the signal reception of different phases of the automobile printed antenna device is set on an automobile glass 100 with several defogging lines 300, and the received The signal is transmitted to a car receiving host 200 , and the car printed antenna device includes: a printed antenna 10 , an auxiliary antenna 20 and a filter circuit 30 .

The printed antenna 10 is designed according to the frequency band and connected to the predetermined position of the automobile glass 100 with an appropriate figure split, and is adjacent to the defogging line 300, and one end thereof is connected with an impedance matching device 11 (which is prior art, so it will not be described here. Further details), and then connect the received signal to the car receiving host 200 via a signal cable 12 .

The auxiliary antenna 20 extends from the defogging line 300 of the automobile glass 100 at a predetermined position with a predetermined length according to the channel distribution of the receiving host 200 at the beginning of manufacture, and one end thereof is connected to the The defogging wire 300 is connected, and the other end is opened close to the printed antenna 10 .

The filter circuit 30 has a pair of ferrite core magnets 31 respectively sleeved on the positive and negative end circuits of the power supply of the defogging line 300 , and a pair of choke coils respectively connected in series to the positive and negative end circuits of the power supply of the defogging line 300 32. A filter capacitor 33 connected in parallel to the positive and negative terminals of the power circuit of the defogging line 300 . As shown in FIG. 3 , the ferrite core magnet 31 is set and positioned with a covering layer 311 and a power line 312 for covering and positioning. As shown in FIG. 4 , the choke coil 32 is wound on a circular magnetic core 321 .

Therefore, the defogging line 300 has a large area and can receive radio signals in all directions, and the ferrite core magnet 31 sleeved on the positive and negative end circuits of the power supply of the defogging line 300 produces an inductance, which is designed to be low in this embodiment. Inductance value, which produces high impedance for high-frequency signals, so the radio signal (such as FM channel) received by the defogging line 300 can be kept on the defogging line 300, and the choke coil 32 is designed to be high inductance value, so another lower frequency radio signal (such as an AM channel) also produces high impedance, and keeping the radio signal on the defogging line 300 will not be grounded. Moreover, although the auxiliary antenna 20 is connected to the defogging line 300, it is not in the power loop of the defogging line 300, so for high frequency signals, due to the skin effect and the predetermined distance from the printed antenna 10 The resulting resonance produces high impedance, which can induce a predetermined signal to the printed antenna 10, that is, properly setting the length of the auxiliary antenna 20 and the distance from the printed antenna 10 can make the channel to be received resonate and A certain signal strength is induced to the printed antenna 10. In addition, the filter capacitor 33 and the choke coil 32 connected in parallel to the power circuit of the defogging line 300 generate a filter. For the noise other than the receiving channel, including the ignition noise of the car, just The signal can be grounded and filtered through the low-resistance loop of the defogging line 300 .

Moreover, the ferrite core magnet 31 of the present utility model is directly sleeved on the power cord 312, and there is no need to cut off the power cord 312 during construction, and there is no need to weld or crimp the connection, which saves labor and time, and because it reduces contacts, so the failure rate and defective rate can be reduced.

Moreover, in order to seek better filtering efficiency, as shown in FIG. 5, the filtering circuit 30' can also be connected in series with a second choke coil 32' with a predetermined inductance value and a second filtering capacitor 33' in parallel, In order to filter out the residual noise and improve the receiving quality.

In addition, the vehicle radio equipment is very diverse, such as mobile phone, satellite navigation, TV, etc., and the defogging line 300 also has various forms, so the auxiliary antenna has to have various forms. Please refer to FIG. 6, the auxiliary antenna 20' has two bifurcations 21' extending from the upper left to the right side of the defogging line 300, and one end of the printed antenna 10 is arranged on the bifurcations 21. 'between.

Please refer to FIG. 7, the auxiliary antenna 20" has two bifurcations 21" extending downward from the lower left side of the defogging line 300, and one end of the printed antenna 10 is arranged on the bifurcations 21 "between.

Please refer to FIG. 8 , the auxiliary antenna 40 has two bifurcations 41 formed by bending and extending the uppermost defogging line 300 upwards and then to the right, and one end of the printed antenna 10 is arranged on Between the bifurcations 41.

Please refer to FIG. 9, the auxiliary antenna 50 has two bifurcations 51 extending downward from the defogging line 300 at the bottom, and one end of the printed antenna 10 is arranged on the bifurcations 51. between.

Please refer to FIG. 10 , the auxiliary antenna 60 is formed by extending upward from the middle of the right side of the defogging line 300 and has two bifurcations 61 , and one end of the printed antenna 10 is arranged on the bifurcations 61 between.

It can be seen from the above that the auxiliary antenna of the present invention is based on the channel range used, and the bifurcation point, bifurcation mode, length and distance between the printed antenna 10 can be set as required, and then the ferrite core of the filter circuit 30 can be matched. The inductance value of the magnet 31 , the choke coil 32 and the capacitance value of the filter capacitor 33 can effectively assist the receiving efficiency of the printed antenna 10 in different phases and places where the radio signal wave is relatively weak.

To sum up the above, the utility model uses induction to increase the automotive printed antenna device for different phase reception, which can assist reception in all directions and effectively isolate noise, and can achieve the purpose of optimal radio reception, and can indeed achieve the expected purpose.

Claims (6)

1. one kind increases the automobile printed antenna devices that out of phase is collected mail with induction, being arranged on one has on the vehicle glass of several de-fogs, and comprise the printed antenna of coating on this vehicle glass, at least one auxiliary antenna, filter circuit that goes out by the de-fog bifurcated of this vehicle glass, it is characterized in that:

This printed antenna is coated near the de-fog of this vehicle glass;

This auxiliary antenna, wherein an end is connected with this de-fog, and the open induction of signal that closely de-fog is received with this printed antenna in the other end is to this printed antenna;

This filter circuit has at least one pair of hollow cylindrical and is sheathed on the iron oxygen heart magnet in this positive and negative loop of de-fog power supply, choking-winding and at least one filter capacitor that is parallel to the positive and negative end of de-fog electric power loop that at least one pair of is serially connected with this positive and negative loop of de-fog power supply respectively and is wound in a circular magnet heart respectively.

2. the automobile printed antenna devices that increases the out of phase collection of letters with induction as claimed in claim 1, it is characterized in that: this auxiliary antenna has two upper left sides by this de-fog and extends the furcation that forms to the right, and an end of this printed antenna is laid between the furcation.

3. the automobile printed antenna devices that increases the out of phase collection of letters with induction as claimed in claim 1, it is characterized in that: this auxiliary antenna has two lower lefts by this de-fog and extends the furcation that forms downwards, and an end of this printed antenna is laid between the furcation.

4. the automobile printed antenna devices that increases the out of phase collection of letters with induction as claimed in claim 1, it is characterized in that: this auxiliary antenna have two by the de-fog that is positioned at the top upwards more to the right bending extend the furcation that forms, and an end of this printed antenna is laid between the furcation.

5. the automobile printed antenna devices that increases the out of phase collection of letters with induction as claimed in claim 1, it is characterized in that: this auxiliary antenna have two by being positioned at the de-fog of below extends the furcation that forms downwards, and an end of this printed antenna is laid between the furcation.

6. the automobile printed antenna devices that increases the out of phase collection of letters with induction as claimed in claim 1, it is characterized in that: this auxiliary antenna is to extend upward in the middle of the right side by this de-fog to form and have bifurcated portion, and an end of this printed antenna is laid between the furcation.

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