Waterproof antenna

Abstract

The utility model provides a waterproof antenna which comprises an antenna main body plate with an antenna, a protective shell, a radio frequency signal line, a feeder line, a ground wire and a heat shrink tube, the antenna main body plate is accommodated in the protective shell, the protective shell is filled with electronic pouring sealant, a feeder line and a ground wire are accommodated in the radio frequency signal line, the feeder line and the ground wire are insulated, the radio frequency signal line extends into the protective shell, and the protective shell is filled with electronic pouring sealant. A feeder line and a ground wire in the radio frequency signal line are electrically connected with the antenna main body plate, the feeder line and the ground wire in the radio frequency signal line are further electrically connected with the intelligent water meter, and the heat shrink tube wraps the joint of the radio frequency signal line and the intelligent water meter, so that waterproof and moisture-proof effects are achieved, and the service life of the external antenna is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a waterproof antenna. Background Art

[0002] At present, most of the antennas of intelligent water meters use rubber shells as external protection structures. Since the antennas are always exposed during use, the rubber shells cannot always ensure the waterproof performance of the antennas, thus affecting the service life of the antennas.

[0003] In view of this, it is necessary to provide a new type of waterproof antenna to overcome the above defects. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof antenna, which has the functions of waterproofing and moisture-proofing, and thus improves the service life of the external antenna.

[0005] To achieve the above purpose, the utility model provides a waterproof antenna, which includes an antenna main board with an antenna, a protective shell, a radio frequency signal line, a feeder line, a ground wire and a heat shrinkable tube; the antenna main board is installed in the protective shell, the inside of the protective shell is filled with electronic potting glue, the radio frequency signal line internally houses the feeder line and the ground wire, the feeder line and the ground wire are kept insulated from each other, the radio frequency signal line extends into the protective shell, and the feeder line and the ground wire inside the radio frequency signal line are electrically connected to the antenna main board, the feeder line and the ground wire inside the radio frequency signal line are also electrically connected to the intelligent water meter, and the heat shrinkable tube is wrapped around the connection part between the radio frequency signal line and the intelligent water meter.

[0006] Preferably, an antenna circuit board ground pad and an antenna circuit board feeder pad are arranged on the antenna main board, and the feeder line and the ground wire inside the radio frequency signal line are respectively welded to the antenna circuit board feeder pad and the antenna circuit board ground pad.

[0007] Preferably, positioning posts are arranged inside the protective shell, and positioning holes are formed on the antenna main board.

[0008] Preferably, a wire passing hole is formed at a position near the top end of the protective shell, one end of the radio frequency signal line extends into the protective shell through the wire passing hole, and a waterproof plug is installed at the wire passing hole.

[0009] Preferably, an installation indication mark is arranged on the outside of the protective shell.

[0010] Preferably, insulating rubber sleeves are wrapped around the outer circles of the feeder line and the ground wire.

[0011] Preferably, the protective shell is a plastic shell.

[0012] Compared with the prior art, the beneficial effects are that after the electronic potting glue in the protective case is cured, it can play the roles of waterproofing, moisture-proofing, dust-proofing, insulation, heat conduction, confidentiality, anti-corrosion, temperature resistance, and shock resistance in the protective case, thereby improving the service life of the external antenna.

[0013] Other features and advantages of the present utility model will be described in the following description, and some will be obvious from the description, or can be understood through the implementation of the present utility model. The features and advantages of the present utility model can be achieved and obtained through the elements and combinations specifically pointed out in the appended claims. These and other features of the present utility model will become clearer and more understandable according to the following description and the appended claims, or can be understood through the implementation of the embodiments described in the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the waterproof antenna provided by the present utility model.

[0016] Figure 2 is Figure 1 a cross-sectional view of a partial structure of the shown waterproof antenna.

[0017] Figure 3 is Figure 1 a schematic structural diagram of the shown antenna main board.

[0018] Reference numerals: 1, protective case; 2, waterproof plug; 3, electronic potting glue; 5, installation indication mark; 6, RF signal line; 7, feeder; 8, ground wire; 9, insulating rubber sleeve; 10, positioning post; 11, positioning hole; 12, antenna circuit board ground pad; 13, antenna circuit board feed pad; 14, antenna main board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the purpose, technical solutions, and beneficial technical effects of the present utility model clearer and more understandable, the following further details the present utility model in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are only for explaining the present utility model and not for limiting the present utility model.

[0020] It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] It should also be noted that unless otherwise clearly specified and limited, terms such as "installed", "connected", "joined", "fixed", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances.

[0022] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In addition, the meanings of "multiple" and "several" refer to two or more, unless otherwise clearly and specifically defined.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a waterproof antenna, which includes an antenna main board 14 with an antenna, a protective case 1, a radio frequency signal line 6, a feeder line 7, a ground line 8, and a heat shrinkable tube 10; the antenna main board 14 is housed in the protective case 1, the inside of the protective case 1 is filled with an electronic potting adhesive 3, the radio frequency signal line 6 houses the feeder line 7 and the ground line 8 inside, the feeder line 7 and the ground line 8 are kept insulated from each other, the radio frequency signal line 6 extends into the inside of the protective case 1, and the feeder line 7 and the ground line 8 inside the radio frequency signal line 6 are electrically connected to the antenna main board 14. The feeder line 7 and the ground line 8 inside the radio frequency signal line 6 are also electrically connected to an intelligent water meter, and the heat shrinkable tube 10 is wrapped around the connection between the radio frequency signal line 6 and the intelligent water meter. It should be noted that in this embodiment, the protective case 1 is a plastic case.

[0024] In this way, after the electronic potting adhesive 3 filled in the protective case 1 is cured, it can play the roles of waterproofing, moisture-proofing, dust-proofing, insulating, heat-conducting, confidentiality, anti-corrosion, temperature-resistant, and shock-proofing inside the protective case 1. After the heat shrinkable tube 10 is completed by heating and processing, it tightly wraps the connection between the radio frequency signal line 6 and the intelligent water meter, and can also play the roles of waterproofing and moisture-proofing.

[0025] In a preferred embodiment, the antenna main board 14 is provided with a pad 12 for the antenna circuit board and a feed pad 13 for the antenna circuit board thereon, and the feeder 7 and the ground wire 8 inside the RF signal line 6 are respectively welded to the feed pad 13 for the antenna circuit board and the pad 12 for the antenna circuit board ground.

[0026] In a preferred embodiment, positioning posts 10 are arranged inside the protective case 1, positioning holes 11 are formed on the antenna main board 14, and the positioning holes 11 are aligned with the positioning posts 10 on the protective case 1 for hot-melt processing to ensure the correct position of the installation of the antenna main board 14.

[0027] In a preferred embodiment, a wire passing hole is formed at a position near the top end of the protective case 1, one end of the RF signal line 6 extends into the protective case 1 through the wire passing hole, and a waterproof plug 2 is installed at the wire passing hole to prevent water from entering the protective case 1.

[0028] In a preferred embodiment, an installation indication mark (such as Figure 1 the indication arrow mark in, with the indication arrow facing upward during installation) is arranged outside the protective case 1 to facilitate correct installation during use.

[0029] In a preferred embodiment, insulating rubber sleeves 9 are wrapped around the outer circles of the feeder 7 and the ground wire 8 to keep insulation between the feeder 7 and the ground wire 8 through the insulating rubber sleeves 9.

[0030] During use, it is correctly installed according to the installation indication mark, and the feeder 7 and the ground wire 8 inside the RF signal line 6 are electrically connected to the intelligent water meter.

[0031] The present utility model is not limited only to what is described in the specification and the embodiments. Therefore, for those skilled in the art, additional advantages and modifications can be easily achieved. Thus, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present utility model is not limited to the specific details, representative devices, and illustrated examples shown and described herein.

Claims

1. A waterproof antenna, characterized in that: The invention comprises an antenna main body plate (14) having an antenna, a protective shell (1), a radio frequency signal line (6), a feeder line (7), a ground line (8) and a heat shrink tube (10); the antenna main body plate (14) is received in the protective shell (1), the protective shell (1) is filled with electronic potting glue (3), the radio frequency signal line (6) receives a feeder line (7) and a ground line (8), the feeder line (7) and the ground line (8) are insulated from each other, the radio frequency signal line (6) extends into the protective shell (1), the feeder line (7) and the ground line (8) inside the radio frequency signal line (6) are electrically connected to the antenna main body plate (14), the feeder line (7) and the ground line (8) inside the radio frequency signal line (6) are also electrically connected to a smart water meter, and the heat shrink tube (10) is wrapped around the connection between the radio frequency signal line (6) and the smart water meter.

2. The waterproof antenna according to claim 1, characterized in that: The antenna main body plate (14) is provided with an antenna circuit board ground pad (12) and an antenna circuit board feed pad (13), and the feed line (7) and ground line (8) inside the radio frequency signal line (6) are respectively welded to the antenna circuit board feed pad (13) and the antenna circuit board ground pad (12).

3. The waterproof antenna according to claim 1, characterized in that: A positioning column (101) is arranged inside the protective shell (1), and a positioning hole (11) is opened on the antenna main body plate (14).

4. The waterproof antenna according to claim 1, characterized in that: The protective shell (1) is provided with a wire passing hole near the top, and one end of the radio frequency signal line (6) extends into the interior of the protective shell (1) through the wire passing hole, and a waterproof plug (2) is installed at the wire passing hole.

5. The waterproof antenna according to claim 1, characterized in that: The protective shell (1) is provided with an installation indication mark on the outside.

6. The waterproof antenna according to claim 1, characterized in that: The outer circles of the feeder wire (7) and the ground wire (8) are both wrapped with insulating rubber sleeves (9).

7. The waterproof antenna according to claim 1, characterized in that: The protective shell (1) is a plastic shell.

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