450M or 4G sucker antenna for wireless meter reading

Abstract

The utility model discloses a 450M or 4G sucker antenna for wireless meter reading. The 450M or 4G sucker antenna comprises a steel wire, a metal connecting rod, a small sucker, a magnet cover, a clamping seat, a magnet assembly, a sticker, a coaxial cable, a heat shrink tube and a joint connector, the metal connecting rod is detachably arranged at the upper end part of the small sucker, the steel wire is fixed above the metal connecting rod, and the lower end part of the metal connecting rod is connected with the inner conductor part of the coaxial cable in a tin soldering manner; the woven mesh part of the coaxial cable is pressed on the edge of the small sucker through the magnet cover and is conducted with the magnet cover, and the other end of the coaxial cable is connected with a joint connector; and the clamping seat is connected with the small sucking disc. According to the utility model, a standard SMA interface is used and is directly butted with electric energy meter equipment for use, so that the communication requirements of different countries are met.

Description

Technical Field

[0001] The utility model relates to a communication device, in particular to a 450M or 4G suction cup antenna for wireless meter reading. Background Art

[0002] At present, for wireless remote meter reading systems, the antenna is mainly an external suction cup antenna. Currently, the main frequency requirements for external suction cup antennas only meet the requirements of 700 - 960 / 1710 - 2700 MHz. With the continuous upgrade of the 4G network, some countries require that devices communicating in the 450M frequency band such as 4G network B31 need to have an antenna requirement including the 450M / 4G frequency band. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a 450M or 4G suction cup antenna for wireless meter reading to meet the communication requirements of devices in the 450M frequency band such as 4G network B31.

[0004] The 450M or 4G suction cup antenna for wireless meter reading of the utility model is realized through the following technical solutions: including a steel wire, a metal connecting rod, a small suction cup, a magnet cover, a card holder, a magnet assembly, a sticker, a coaxial cable, a heat shrinkable tube and a connector;

[0005] The metal connecting rod is detachably arranged at the upper end of the small suction cup, the steel wire is fixed above the metal connecting rod, and the lower end of the metal connecting rod is connected to the inner conductor part of the coaxial cable by soldering; the braided net part of the coaxial cable is pressed against the edge of the small suction cup by the magnet cover and is electrically connected to the magnet cover, and the other end of the coaxial cable is connected with a connector; the card holder is connected with the small suction cup.

[0006] As a preferred technical solution, the magnet assembly is composed of a magnet and a metal cover and is fixed in the small hole of the card holder by gluing.

[0007] As a preferred technical solution, the steel wire is arranged in an elastic whip-like structure, and a plug hole is provided at the lower end of the steel wire, and the upper end of the metal connecting rod is detachably embedded in the plug hole of the steel wire.

[0008] As a preferred technical solution, the card holder and the small suction cup are fixed into one body by position rotation.

[0009] As a preferred technical solution, a sticker is pasted below the card holder.

[0010] As a preferred technical solution, a heat shrinkable tube is arranged at the connection between the coaxial cable and the connector.

[0011] The beneficial effect of the utility model is that the utility model uses a standard SMA interface and is directly docked with the electric energy meter device to meet the communication requirements of different countries. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is an exploded structural schematic diagram of the present invention;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 3 It is a coaxial cable structural schematic diagram of the present invention. Detailed Description of the Embodiments

[0016] All the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0017] As Figure 1 - Figure 2 shown, a 450M or 4G suction cup antenna for wireless meter reading of the present invention includes a steel wire 1, a metal connecting rod 2, a small suction cup 3, a magnet cover 4, a card holder 5, a magnet assembly, a sticker 7, a coaxial cable 8, a heat shrinkable tube 9, and a connector 10;

[0018] The metal connecting rod 2 is detachably arranged at the upper end of the small suction cup 3. The steel wire 1 is fixed above the metal connecting rod 2, and the lower end of the metal connecting rod 2 is connected to the inner conductor part of the coaxial cable 8 by soldering. The braided wire part of the coaxial cable 8 is pressed against the edge of the small suction cup 3 by the magnet cover 4 and is electrically connected to the magnet cover 4. The other end of the coaxial cable 8 is connected with a connector 10. The card holder 5 is connected to the small suction cup 3.

[0019] In this embodiment, the magnet assembly is composed of a magnet 6-1 and a metal cover 6-2, and is fixed in the small hole of the card holder 5 by gluing. The metal cover 6-2 plays a role in protecting the magnet 6-1, and the positive and negative directions of the magnet assembly will affect the suction force of the magnet.

[0020] In this embodiment, the steel wire 1 is arranged in a flexible whip-like structure. A plug hole is provided at the lower end of the steel wire 1, and the upper end of the metal connecting rod 2 is detachably embedded in the plug hole of the steel wire 1, making its installation and disassembly convenient.

[0021] In this embodiment, the card holder 5 and the small suction cup 3 are fixed together by a snap rotation for easy installation and disassembly.

[0022] In this embodiment, a sticker 7 is pasted under the card holder 5, making the bottom of the card holder 5 flat, thereby achieving an aesthetic effect.

[0023] In this embodiment, a heat shrinkable tube 9 is provided at the connection between the coaxial cable 8 and the connector 10, thereby achieving an aesthetic effect.

[0024] In this embodiment, the connector 10 adopts a standard SMA interface and is directly docked with the electricity meter device to meet the communication requirements of different countries.

[0025] As Figure 3 shown, the coaxial cable is sequentially provided with an outer sheath 11, a braided mesh 12, an insulating layer 13, and an inner conductor 14 from outside to inside. The lower end of the metal connecting rod 2 is connected to the inner conductor 14 of the coaxial cable 8 by soldering.

[0026] Through simulation and actual measurement with HFSS high-frequency electromagnetic simulation software, the standing wave ratio VSWR of this sucker antenna is less than 3.5 and the gain reaches 0 - 2 dBi in the range of 450 - 4

[0027] 70 / 700 - 960 / 1710 - 2700 MHz, which can fully meet the requirements of the wireless meter reading terminal for distance transmission.

[0028] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A 450M or 4G suction cup antenna for wireless meter reading, characterized in that: It includes a steel wire (1), a metal connecting rod (2), a small suction cup (3), a magnet cover (4), a card holder (5), a magnet assembly, a sticker (7), a coaxial cable (8), a heat shrinkable tube (9) and a connector (10); The metal connecting rod (2) is detachably arranged at the upper end of the small suction cup (3). The steel wire (1) is fixed above the metal connecting rod (2), and the lower end of the metal connecting rod (2) is connected to the inner conductor part of the coaxial cable (8) by soldering. The braided wire part of the coaxial cable (8) is pressed against the edge of the small suction cup (3) by the magnet cover (4) and is electrically connected to the magnet cover (4). The other end of the coaxial cable (8) is connected with a connector (10). The card holder (5) is connected with the small suction cup (3); The magnet assembly consists of a magnet (6-1) and a metal cover (6-2), and is fixed in the small hole of the card holder (5) by gluing; The steel wire (1) is arranged in a flexible whip-like structure. A plug hole is provided at the lower end of the steel wire (1), and the upper end of the metal connecting rod (2) is detachably embedded in the plug hole of the steel wire (1); The card holder (5) and the small suction cup (3) are fixed together by snap rotation; A sticker (7) is pasted below the card holder (5); A heat shrinkable tube (9) is arranged at the connection between the coaxial cable (8) and the connector (10).

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