CN202484559U - A lanyard with a built-in FM antenna - Google Patents

Abstract

The utility model provides a string rope of built-in FM antenna, includes plug (1) with AUX audio input interface matching, the string rope (2) that link to each other with plug (1), should hang that rope (2) embeds there is FM antenna (3), FM antenna starting point (4) and plug (1) electric connection, this FM antenna (3) are the U type and walk the line, and the both sides edge along hanging rope (2) lays side by side. The utility model discloses the structure combines the FM antenna with the function of hanging the rope, carries and convenient to use, can satisfy the customer demand better, owing to adopt the mode of U type side by side walking the line in hanging the rope in order to increase FM antenna length, guaranteed FM reception performance when having reduced holding area.

Description

A lanyard with a built-in FM antenna

technical field

The utility model relates to a lanyard with a built-in FM antenna.

Background technique

FM radio functions have been integrated in many existing mobile phones or digital products. Due to the use of the built-in antenna, the radio effect is not good, so the electronic equipment with FM radio function on the market generally uses an external earphone as the FM antenna. But for the user, there is the defect that the earphone is inconvenient to carry and use, and the earphone must be connected to use the earphone function to realize FM radio.

Utility model content

In order to overcome the deficiencies and existing problems of the prior art, the utility model provides a lanyard with a built-in FM antenna with low production cost, easy to carry and use, and good FM reception performance.

The utility model is realized through the following technical solutions: a lanyard with a built-in FM antenna, comprising a plug matched with the AUX audio input interface and a lanyard connected to the plug, the lanyard has a built-in FM antenna, the FM antenna The starting point is electrically connected to the plug, and the FM antenna is U-shaped, and is arranged side by side along the two sides of the lanyard.

A conductor column is connected between the plug and the lanyard, and the starting point of the FM antenna is connected to the conductor column.

The plug adopts a 3.5mm or 2.5mm standard plug, which is a three-section or four-section plug, and includes an FM antenna input terminal, and the FM antenna input terminal is electrically connected to the conductor post.

The line spacing of the parallel FM antennas in the lanyard is greater than or equal to 2.5 mm, the line diameter of the FM antenna is less than or equal to 0.5 mm, and the total length is 30-50 cm.

Further, the lanyard is flat.

Compared with the prior art, the utility model has simple and reasonable structure, low production cost, combines the functions of the FM antenna and the hanging rope, is convenient to carry and use, and can better meet the needs of customers. In order to increase the length of the FM antenna, the housing area is reduced and the FM reception performance is guaranteed at the same time.

Description of drawings

Fig. 1 is the assembly diagram of the utility model.

In the figure: 1-plug, 2-lanyard, 3-FM antenna, 4-FM antenna start point, 5-conductor post, 6-FM antenna end point.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the specific embodiments described here are only used to explain the utility model, not to limit the utility model.

As shown in Figure 1 , a lanyard with a built-in FM antenna includes a plug 1 that can be matched and inserted into an AUX audio input interface, and a lanyard 2 connected to the plug 1 . In this embodiment, the hanging rope 2 is flat. The lanyard 2 has a built-in FM antenna 3 , the starting point 4 of the FM antenna is electrically connected to the plug 1 , and the end point 6 of the FM antenna is a free end. The FM antenna 3 is U-shaped, and is arranged side by side along the two side edges of the hanging rope 2 .

A conductor post 5 is connected between the plug 1 and the lanyard 2 , and the starting point 4 of the FM antenna is connected to the conductor post 5 .

The plug 1 adopts a 3.5mm or 2.5mm standard plug, which is suitable for the 3.5mm or 2.5mm headphone jack based on the mobile phone standard or the AUX audio input interface of other digital products. The plug 1 is a three-section or four-section plug, including an FM antenna input end, and the FM antenna input end is electrically connected to the conductor post 5 .

The line spacing of the parallel FM antennas 3 in the lanyard 2 is greater than or equal to 2.5 mm, so as to avoid signal interference between the antiparallel FM antennas 3 .

The wire diameter of the FM antenna 3 is less than or equal to 0.5mm.

The total length of the FM antenna 3 is 30-50 cm. Considering the FM reception performance, the total length of the FM antenna 3 is not less than 50 cm.

The lanyard of the utility model can be used as an ordinary lanyard, which is convenient for users to carry, and can also be used as an external FM antenna for digital products such as mobile phones, which greatly improves the FM radio sensitivity. When used at the same time, they can be quickly installed or removed.

The contents mentioned in the above embodiments are not limitations of the present utility model, any obvious replacements are within the protection scope of the present utility model without departing from the inventive concept of the present utility model.

Claims (8)

1. A lanyard with a built-in FM antenna, comprising a plug (1) matching the AUX audio input interface, a lanyard (2) connected to the plug (1), characterized in that: the lanyard (2) has a built-in FM The antenna (3), the FM antenna starting point (4) is electrically connected to the plug (1), and the FM antenna (3) is U-shaped, and is arranged side by side along the two side edges of the lanyard (2). 2. the lanyard of built-in FM antenna according to claim 1, is characterized in that: a conductor post (5) is connected between described plug (1) and lanyard (2), and the starting point (4) of described FM antenna ) is connected to the conductor post (5). 3. the lanyard of built-in FM antenna according to claim 2, is characterized in that: described plug (1) is three-section type or four-section type plug, comprises an FM antenna input end, and this FM antenna input end is connected with conductor The column (5) is electrically connected. 4 . The lanyard with built-in FM antenna according to claim 3 , characterized in that: the line distance between the FM antennas ( 3 ) juxtaposed in the lanyard ( 2 ) is greater than or equal to 2.5 mm. 5. The lanyard with built-in FM antenna according to claim 4, characterized in that: the wire diameter of the FM antenna (3) is less than or equal to 0.5 mm. 6. The lanyard with a built-in FM antenna according to claim 5, characterized in that: the total length of the FM antenna (3) is 30-50 cm. 7. The lanyard with a built-in FM antenna according to claim 6, characterized in that: the lanyard (2) is flat. 8. The lanyard with a built-in FM antenna according to any one of claims 1-7, characterized in that: the plug (1) adopts a 3.5mm or 2.5mm standard plug.