TWI392597B - An anti-interference antenna of a wireless tire pressure receiver - Google Patents

Description

Anti-jamming antenna for wireless tire pressure receiver

The invention relates to an anti-interference antenna for a wireless tire pressure receiver, in particular to an antenna integrated with a power supply wire of a wireless tire pressure receiver and having shielding measures to effectively prevent mutual interference.

According to the tire, the hollow body is made of synthetic rubber. After inflation, the tire pressure is formed inside, and the normal or not the tire pressure can be used normally, which seriously affects the driving safety. Since the tire is an important part of the vehicle, it is always necessary to pay attention to the tire pressure and temperature of the tire to ensure the safety of the tire. In order to facilitate the driver to grasp the tire pressure condition of the seat car at any time, the new tire tire is equipped with a wireless tire pressure gauge, which periodically wirelessly transmits the detected tire pressure to a wireless tire pressure receiver in the vehicle. Through the interpretation and display of the wireless tire pressure receiver, the tire pressure information of each tire is provided to the driver at any time, so as to facilitate the driver to take precaution measures when the tire pressure is abnormal.

It can be seen from the working principle of the wireless tire pressure gauge and the wireless tire pressure receiver that an antenna is internally built in the wireless tire pressure receiver to receive signals transmitted by the wireless tire pressure gauges. Since the wireless tire pressure receiver is attached to the driver's seat in a separate form, its volume is not large, and the installation position is not fixed. Under this condition, the built-in antenna of the wireless tire pressure receiver is difficult in terms of specifications and performance. As expected, in particular, the signal reception intensity may not be ideal. In order to solve the above problems, the applicant's previous application for the approval of China's new patent right No. M280309 "Wireless tire pressure receiver antenna structure improvement" proposed a feasible solution to improve the signal receiving strength of the wireless tire pressure receiver.

The technical solution proposed in the foregoing patents, as shown in the ninth and tenth drawings, mainly comprises a wireless tire pressure receiver 1 in a box body, and an antenna 2 and a circuit connected to the antenna 2 are disposed inside the box body. The substrate 3 and the box body are provided with a socket 4 at a corner end for inserting a power cord 5 for connecting the cigarette lighter in the vehicle through the power cord 5, and feeding the power source to the circuit substrate in the box body for supply. Its working power.

The main improved design of the aforementioned patent is to extend the antenna 2 in the receiver 1 to the socket 4, and then the power cable 5 is internally covered with an antenna 51. The power cable 5 and the antenna 51 are passed through a plug. 52 is plugged into the socket 4 of the receiver 1, whereby in addition to forming a power supply circuit, the antenna 51 in the power line 5 is also connected to the antenna 2 in the receiver 1, so that the length of the antenna is effectively increased. In turn, the received signal strength is effectively enhanced.

The aforementioned patents effectively extend the length of the antenna provided in the receiver 1 by integrating an antenna in the power line, which does have significant effects for improving the signal receiving intensity. However, the technical measures adopted by the technical means still have room for improvement in the interference shielding measures. The reason is that the above patent case encapsulates another antenna in the power line. When the antenna is working, there is a current between the power line and the antenna respectively. Flow, when the power line and the antenna are tightly wrapped together, the electromagnetic interference between them is inevitable. Once the interference occurs, it will affect the normal operation of the antenna.

Therefore, it can be seen from the above that integrating the antenna in the power line of the wireless tire pressure receiver to extend the length of the antenna and improve the signal receiving strength is a feasible technical solution, but an effective solution still needs to be further proposed in the prevention of interference.

Therefore, the main object of the present invention is to provide an anti-interference antenna for a wireless tire pressure receiver, which mainly integrates an antenna in a power supply wire of a wireless tire pressure receiver, but has a shielding measure on the power supply wire to effectively solve the interference problem.

The main technical means adopted for achieving the above-mentioned purposes are mainly to form a pair of wires side by side on the main wire of the strip, wherein at least one set of power wires are arranged in the longitudinal direction of the main wire, and the wires are pierced in the longitudinal direction. An antenna

The antenna is mainly connected to the wireless tire pressure receiver to improve the signal receiving strength; since the antenna is independently wrapped in the secondary wire, it can ensure that the antenna and the power line do not interfere with each other.

Another feasible technical means of the antenna is that a plurality of intermediate air gaps extending along the longitudinal direction thereof are formed in the strip-shaped insulated wire, and the two ends of the insulated wire in the width direction are a main wire and a pair of wires, respectively. The wire and the secondary wire are located at opposite ends of the air gap, and a set of power lines and an antenna are respectively disposed along the length direction, so that the air gap is located between the power line and the antenna; and the wireless tire pressure can still be used in the above structure. An antenna is integrated in the power lead of the receiver to improve the signal receiving intensity. Since the insulated wire has a special air gap design, shielding is formed between the power line and the antenna, and the antenna and the power line can be effectively prevented from interfering with each other.

With regard to a preferred embodiment of the present invention, first, as shown in the first and second figures, the method includes: an insulated wire (10) in the form of a strip, in the present embodiment, a main wire (11) And a sub-wire (12) parallel to the main wire (11) and partially connected, the main wire (11) and the sub-wire (12) are both insulated, and the main wire (11) further has a shielding function; The wire (20) is placed on the main wire (11) in the longitudinal direction; and an antenna (30) is placed on the sub wire (12) in the longitudinal direction.

It will be apparent from the foregoing embodiments that the present invention is such that the insulated wire (10) includes a main wire (11) and a pair of wires (12), and one of the main and auxiliary wires (11) (12) is respectively disposed. The power cord (20) and the antenna (30) are assembled, and since the antenna (30) is independently coated on the insulated secondary wire (12), the insulated and shielded main wire (11) can be used for the internal power supply. The line (20) produces a shielding effect, thereby effectively preventing mutual interference between the power line (20) and the antenna (30).

As for the configuration on which the main wire (11) is shielded, a metal layer (not shown) may be provided on the outer or inner diameter surface of the main wire (11) so as to be in the main wire (11). The power cord (20) produces a shielding effect. When the main wire (11) is provided with a metal layer on its inner diameter surface, the metal layer is located between the main wire (11) and the power line (20). On the outer diameter surface of the power cord (20), a metal layer may also be provided to provide a shielding effect.

Furthermore, in addition to the power line (20), the main wire (11) can be further placed with other signal lines.

Referring to the third embodiment, a second preferred embodiment of the present invention includes: an insulated wire (10) having a strip shape. In this embodiment, a main wire (11) and A sub-wire (12) parallel to the main wire (11) and partially connected, and an air gap (13) extending in the longitudinal direction is formed in the main wire (11). In this embodiment, the air gap ( 13) For one, please refer to the fourth figure, the air gap (13) is located at the inner end of the main wire (11) in the width direction and adjacent to the sub-wire (12); further, the aforementioned main wire (11) Still, as in the previous embodiment, a metal layer is provided on the outer diameter surface or the inner diameter surface thereof; a set of power supply lines (20) are longitudinally placed on the main wire (11) and located at The outer end of the main wire (11) in the width direction is opposite to the air gap (13) (please refer to the fifth figure); an antenna (30) is longitudinally placed on the sub-wire (12) And opposite to the air gap (13) at the inner end of the main wire (11) in the width direction.

As is apparent from the foregoing embodiments, the present invention is characterized in that the insulated wire (10) includes a main wire (11) and a pair of wires (12), and one of the main and auxiliary wires (11) (12) is respectively disposed. The power cord (20) and the antenna (30) further form an air gap (13) along the length direction at the inner end of the main wire (11) in the width direction, and the air gap (13) is located at the power line (20) Between the antenna (30) and the antenna (13), the air gap (13) can be used to form a shield between the power line (20) and the antenna (30), thereby effectively preventing mutual interference therebetween. Further, if the air gap (13) is filled with a shield or a metal layer is provided on the inner wall surface thereof, the shielding effect can be further enhanced.

Referring to FIG. 6 again, a third preferred embodiment of the present invention includes: an insulated wire (40) having a slightly flat strip shape, and more than one of the insulated wires (40) are formed. The embodiment is an air gap (41) extending in the longitudinal direction to provide shielding. Please refer to the seventh figure, the air gap (41) is also flat, and the width of the insulated wire (40). The two ends of the insulated wire (40) adjacent to the air gap (41) in the width direction are respectively a main wire and a pair of wires, that is, in the embodiment, the main wire and the secondary wire are configured as Integral; a set of power cords (20) are longitudinally placed on the main wire of the insulated wire (40) and adjacent to the air gap (41) on the insulated wire (40) (please refer to the eighth The antenna (30) is placed on the secondary wire of the insulated wire (40) in the longitudinal direction and adjacent to the air gap (41) on the insulated wire (40) and through the air gap. (41) Opposite the power line (20).

It can be clearly seen from the above embodiment that the power cable (20) and the antenna (30) are respectively disposed at both ends in the width direction of the insulating wire (40) along the length direction, and the power cable (20) and the antenna ( 30) Opposite to the air gap (41), in other words, the air gap (41) constitutes a shield between the power line (20) and the antenna (30), and the mutual interference between the two is effectively prevented. In addition, if the air gap (41) is filled with a shield or a metal layer is provided on the inner wall surface thereof, the shielding effect can be further enhanced.

When the structure disclosed in the foregoing embodiment is used as the power supply wire of the wireless tire pressure receiver, the power line and the antenna on the insulated wire can be respectively connected to the power input end and the built-in antenna inside the wireless tire pressure receiver, and the antenna is used as the inner antenna. The extension of the antenna can effectively enhance the signal receiving strength. In terms of the power cable, there is no possibility that the internal power line and the antenna interfere with each other. In addition to the aforementioned application methods, the antenna of the present invention can be directly connected to the wireless tire pressure receiver and used as its receiving antenna, that is, the wireless tire pressure receiver does not need a built-in antenna, which can reduce the cost and save the space of the receiver.

(10). . . Insulated wire

(11). . . Main wire

(12). . . Secondary wire

(13). . . Air gap

(20). . . power cable

(30). . . antenna

(40). . . Insulated wire

(41). . . Air gap

First Figure: is a perspective view of a first preferred embodiment of the present invention.

Second Figure: is a cross-sectional view in the width direction of a first preferred embodiment of the present invention.

Third Figure: A perspective view of a preferred embodiment of the present invention.

Fourth Figure: is a longitudinal cross-sectional view of a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view in the width direction of a preferred embodiment of the present invention.

Figure 6 is a perspective view of still another preferred embodiment of the present invention.

Figure 7 is a longitudinal cross-sectional view showing still another preferred embodiment of the present invention.

Figure 8 is a cross-sectional view in the width direction of still another preferred embodiment of the present invention.

The ninth picture: is an exploded view of China's new patent right No. M280309.

The tenth picture is a schematic diagram of the state of use of China's new patent right No. M280309.

(10). . . Insulated wire

(11). . . Main wire

(12). . . Secondary wire

(20). . . power cable

(30). . . antenna

Claims (10)

An anti-jamming antenna for a wireless tire pressure receiver includes: an insulated wire material consisting of a strip of main wire and a secondary wire connected in parallel with the main wire and partially connected, the main wire and the auxiliary wire are insulated, and The main wire further has a shielding function; a set of power wires are disposed on the main wire in a longitudinal direction; and an antenna is placed on the auxiliary wire in a length direction. The anti-interference antenna of the wireless tire pressure receiver according to claim 1, wherein the main wire is provided with a metal layer on the outer diameter surface. The anti-interference antenna of the wireless tire pressure receiver according to claim 1, wherein the main wire is provided with a metal layer on the inner diameter surface. The anti-interference antenna of the wireless tire pressure receiver according to claim 1, wherein the power line has a metal layer on an outer diameter surface thereof. The anti-interference antenna of the wireless tire pressure receiver according to any one of claims 1 to 4, wherein the main wire is formed with one or more air gaps extending in a longitudinal direction, the air gap being located in a width direction of the main wire. The inner end of the pair is adjacent to the sub-wire; the set of power lines are disposed on the main wire in a longitudinal direction, and are located at an outer end in the width direction of the main wire, and are opposite to the air gap; the antenna is worn in the longitudinal direction The auxiliary wire is opposed to the air gap at the inner end in the width direction of the main wire. The anti-interference antenna of the wireless tire pressure receiver according to claim 5, wherein the main wire is provided with a metal layer on the inner wall surface of the air gap. The anti-interference antenna of the wireless tire pressure receiver according to claim 5, wherein the air gap of the main wire is filled with a shield. The anti-jamming antenna of the wireless tire pressure receiver comprises: an insulated wire, which is in the form of a flat strip, and has an air gap extending in the longitudinal direction and having a shielding effect, and one end of the insulated wire width direction is The main wire, the other end of the width direction is a pair of wires, the main and the auxiliary wires are respectively located at opposite ends of the air gap and opposite; a set of power wires are arranged on the main wire in the longitudinal direction, and in the width direction The air gap is adjacent to each other; an antenna is disposed on the auxiliary wire in a longitudinal direction, adjacent to the air gap in the width direction, and opposite to the power line through the air gap. The anti-interference antenna of the wireless tire pressure receiver according to claim 8 is characterized in that the insulating wire is provided with a metal layer on the inner wall surface of the air gap. The anti-interference antenna of the wireless tire pressure receiver according to claim 8 is characterized in that the air gap of the insulated wire is filled with a shield.