CN215451763U

CN215451763U - 2.4G 3dBi blade external antenna

Info

Publication number: CN215451763U
Application number: CN202121705116.7U
Authority: CN
Inventors: 赵正刚; 刘强; 宋振华
Original assignee: Jiangsu Zhengxu Defense Technology Co ltd
Current assignee: Jiangsu Zhengxu Defense Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-07
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a 2.4G 3dBi blade external antenna, which comprises an antenna body, wherein the bottom of the antenna body is hinged with an antenna fixing seat; the antenna body comprises an antenna shell arranged on the outer side, and a cable and a radiator which are fixedly arranged in the antenna shell; the antenna shell comprises a rod sleeve arranged at the top, and the rod sleeve is of a hollow blade structure; the cable and the radiator are fixed in the antenna shell through the fixing element; the cable comprises an inner conductor, an insulating layer, an outer conductor and an outer sheath; the inner conductor, the insulating layer, the outer conductor and the outer sheath are sequentially arranged from inside to outside. According to the utility model, the blade-shaped shell is adopted, so that when the antenna is installed outdoors, the wind resistance is smaller, and the wind resistance of the antenna is stronger. Can be suitable for high-altitude or windy seaside cities. The use environment of the antenna is enlarged. And the rod sleeve is made of ABS material, so that the rod sleeve has higher hardness and higher compressive resistance, and is suitable for external environment.

Description

2.4G 3dBi blade external antenna

Technical Field

The utility model relates to the technical field of antennas, in particular to a 2.4G 3dBi blade external antenna.

Background

Currently, an antenna is a component used in radio equipment for transmitting or receiving electromagnetic waves, which converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa, and is widely used in engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy, and the like. For the antenna on the terminal device, there are generally an internal antenna and an external antenna, wherein the internal antenna has a small volume and poor signal strength, and the external antenna has a large volume and good signal strength.

However, the existing external antenna has poor windproof effect, and if the external antenna is installed in a city or environment with much wind. Additional wind guards or wind-proof structures for auxiliary wind-proofing are required. It is very troublesome.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a 2.4G 3dBi blade external antenna; the technical problem can be effectively solved.

The utility model is realized by the following technical scheme:

A2.4G 3dBi blade external antenna comprises an antenna body, wherein the bottom of the antenna body is hinged with an antenna fixing seat; the antenna body comprises an antenna shell arranged on the outer side, and a cable and a radiator which are fixedly arranged in the antenna shell; the antenna shell comprises a rod sleeve arranged at the top, and the rod sleeve is of a hollow blade structure; the cable and the radiator are fixed in the antenna shell through the fixing element; the cable comprises an inner conductor, an insulating layer, an outer conductor and an outer sheath; the inner conductor, the insulating layer, the outer conductor and the outer sheath are sequentially arranged from inside to outside.

Furthermore, the rod sleeve is divided into an upper rod sleeve and a lower rod sleeve, and the joint of the upper rod sleeve and the lower rod sleeve is detachably and fixedly connected through a buckle or a fastener; when the upper rod sleeve and the lower rod sleeve are detachably and fixedly connected through a fastener, the rod sleeve is made of ABS materials.

Furthermore, the rod sleeve is divided into an upper rod sleeve and a lower rod sleeve, and the inner diameter of the upper part of the lower rod sleeve is smaller than that of the lower part of the lower rod sleeve; the inner diameter of the upper rod sleeve is equal to or smaller than that of the upper part of the lower rod sleeve.

Furthermore, the fixing element comprises a zinc alloy column and a zinc alloy pipe which are sleeved on the cable, and a heat-shrinkable sleeve for connecting and fixing the zinc alloy column and the zinc alloy pipe is sleeved on the outer sides of the zinc alloy column and the zinc alloy pipe; and foam gum for fixing the radiator in the rod sleeve; the outer walls of the heat-shrinkable sleeve and the foam gum are tightly attached to the inner wall of the rod sleeve.

Furthermore, the radiator is a spring radiator made of metal materials with good conductivity, the length of the spring radiator is 70-80mm, and the number of turns of the spring is 8-12.

Furthermore, the bottom of the spring radiating body is welded and fixed with the inner wall of the top of the zinc alloy column, and the bottom of the zinc alloy column is welded and fixed with the inner conductor of the cable, so that the cable is connected with the zinc alloy column and the spring radiating body, and can transmit signals; the outer conductor layer of the cable is tightly attached and fixed with the inner wall of the zinc alloy pipe at the position where the cable corresponds to the zinc alloy pipe, so that the cable is connected with the zinc alloy pipe, and signal transmission can be carried out.

Furthermore, the bottom of the rod sleeve is hinged with an antenna fixing seat, and the movable angle between the rod sleeve and the antenna fixing seat is 90 degrees.

Furthermore, the bottom of the rod sleeve is provided with a groove for transposition of the antenna fixing seat, the side walls of the two sides of the groove are provided with a first through hole, a second through hole corresponding to the first through hole is formed in the antenna fixing seat, rivets are inserted into the first through hole and the second through hole, and the antenna fixing seat can rotate around the rivets to one side of the rod sleeve with the groove on the rivet 7.

Furthermore, the antenna fixing seat is provided with a clamping groove and an interface which correspond to the mounting hole on the finished product equipment.

Advantageous effects

Compared with the traditional prior art, the 2.4G 3dBi blade external antenna provided by the utility model has the following beneficial effects:

(1) this technical scheme is through the shell that adopts the blade form, and when the antenna was installed in the open air, its windage is littleer for the wind-resistance of antenna is stronger. Can be suitable for high-altitude or windy seaside cities. The use environment of the antenna is enlarged. And the rod sleeve is made of ABS material, so that the rod sleeve has higher hardness and higher compressive resistance, and is suitable for external environment.

(2) The upper rod sleeve and the lower rod sleeve in the technical scheme are detachably and fixedly connected through the fastener, so that when a cable is installed on a shell of the antenna, the upper rod sleeve and the lower rod sleeve can be detached, and then a cable assembly is installed; the antenna is convenient to assemble, so that the whole installation process is simple and convenient; more time-saving and labor-saving. Meanwhile, the rigidity of the antenna shell can be ensured. In addition, the maintenance in the later period is facilitated.

(3) The arrangement of the spring radiator in the technical scheme can increase the gain of the antenna and enlarge the radiation distance of the antenna.

(4) According to the technical scheme, the cable can be effectively fixed in the rod sleeve through the arrangement of the fixing element, so that the cable is not shaken by external force; the shock resistance and the pressure resistance of the antenna are improved, and the stability and the using effect of the antenna are improved.

(5) The fixing element among this technical scheme adopts zinc alloy post, zinc alloy pipe, heat shrinkage bush and bubble face gum, and zinc alloy post, zinc alloy pipe and heat shrinkage bush fix a position the cable, fix its stable in the antenna housing, can effectually avoid the cable to rock in the antenna housing, the steadiness of multiplicable antenna. The setting of bubble face gum can be with the stable top of fixing at the antenna of spring radiator, can increase the stability of cable radiation.

(6) The insulating layer and the oversheath of cable among this technical scheme adopt and gather perfluor ethylene propylene material and make for the cable has better bending resistance nature, makes the cable still can keep its good performance when being buckled in the antenna case, can not appear breaking or crackle. Meanwhile, the working temperature range of the cable is wider and can reach-55 ℃ to +200 ℃. So that the antenna can be used in more environments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the cable of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a schematic plan view of the port of the antenna holder according to the present invention.

Fig. 5 is a horizontal plane pattern of the antenna of the present invention at various frequencies.

Reference numbers in the drawings: 1-antenna body, 11-rod sleeve, 111-upper rod sleeve, 112-lower rod sleeve, 113-slot, 12-cable, 121-inner conductor, 122-insulating layer, 123-outer conductor, 124-outer sheath, 13-radiator, 2-antenna fixing seat, 21-card slot, 22-interface, 3-zinc alloy column, 4-zinc alloy tube, 5-heat shrinkable sleeve, 6-foam gum, 7-rivet and 8-connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in fig. 1-3, a 2.4G 3dBi blade external antenna includes an antenna body 1, and an antenna fixing base 2 is hinged to the bottom of the antenna body 1. The antenna body 1 comprises an antenna shell arranged on the outer side, and a cable 12 and a radiator 13 which are fixedly arranged in the antenna shell; the antenna shell comprises a rod sleeve 11 arranged at the top, and the rod sleeve 11 is of a hollow blade structure; the cable 12 and the radiator 13 are fixed inside the antenna housing by a fixing element.

Blade-shaped shell, when the antenna is installed outdoors, its windage is littleer for the wind resistance of antenna is stronger. Can be suitable for high-altitude or windy seaside cities. The use environment of the antenna is enlarged.

The cable 12 comprises an inner conductor 121, an insulating layer 122, an outer conductor 123 and an outer sheath 124; the inner conductor 121, the insulating layer 122, the outer conductor 123 and the outer sheath 124 are arranged in sequence from inside to outside.

The inner conductor 121 is a single metal wire formed by twisting 7 tinned copper wires with the outer diameter of 0.08mm, and the outer diameter of the single metal conductor obtained after twisting is 0.24 mm. The outer side of the single metal wire is coated with an insulating layer 122, the insulating layer 122 is made of a polyperfluorinated ethylene propylene material, and the insulating layer 122 is transparent in color.

The outer side of the insulating layer 122 is wrapped by an outer conductor 123, the outer conductor 123 is a metal braided layer, the metal braided layer is obtained by braiding a plurality of metal conductors, and the braiding density is greater than or equal to 90%.

The metal conductor of the metal braid is woven by 16 tinned copper wires, and each tinned copper wire in the 16 tinned copper wires is obtained by twisting 4 tinned copper wires with the diameter of 0.05 mm.

The outer side of the outer conductor 123 is sleeved with an outer sheath 124, the outer sheath 124 is made of polyperfluorinated ethylene propylene, the color of the outer sheath is gray, and the outer diameter of the outer sheath is 1mm to 1.2 mm.

The insulating layer 122 and the outer sheath 124 of the cable 12 are made of a polyperfluorinated ethylene propylene material, so that the cable has better bending resistance, the cable can still keep good performance when being bent in the antenna shell, and no crack or crack occurs. Meanwhile, the working temperature range of the cable is wider and can reach-55 ℃ to +200 ℃. So that the antenna can be used in more environments.

The fixing element comprises a zinc alloy column 3 sleeved at the middle upper part of the cable 12 and a zinc alloy tube 4 sleeved at the middle lower part of the cable 12; a heat-shrinkable sleeve 5 for fixing and connecting the zinc alloy column 3 and the zinc alloy tube 4 is sleeved between the bottom of the zinc alloy column 3 and the top of the zinc alloy tube 4; the heat-shrinkable sleeve 5 sleeves and connects the zinc alloy column 3 and the zinc alloy pipe 4 into a whole and simultaneously plays a role in fixing the two; the two are fixed in the shell and cannot shake.

The radiator 13 is a spring radiator made of brass material with the outer diameter of 0.8mm, the length of the spring radiator is 70-80mm, the outer diameter of the spring is consistent with the outer diameter of the zinc alloy column 3, and the number of turns of the spring is 8-12. The arrangement of the spring radiator can increase the gain of the antenna and enlarge the radiation distance of the antenna.

The fixing element also comprises a foam gum 6 for fixing the spring radiating body in the rod sleeve 11, the foam gum 6 is of an annular structure, the inner diameter of the foam gum 6 is smaller than the outer diameter of a brass material, the foam gum 6 is sleeved on the middle upper part of the spring radiating body, and the outer side of the foam gum 6 is fixedly adhered to the inner wall of the rod sleeve 11 through glue; the middle upper part of the spring radiator is fixed on the inner wall of the rod sleeve 11 and cannot shake.

The bottom of the spring radiator 13 is welded and fixed with the inner wall of the top of the zinc alloy column 3, and the bottom of the zinc alloy column 3 is welded and fixed with the inner conductor 121 of the cable 12. During assembly operation, the outer sheath 124, the metal braid 123 and the insulating layer 122 on the top of the cable 12 are stripped, so that the inner conductor 121 of the cable 12 is exposed in the air, the inner conductor 121 of the cable 12 is inserted into the zinc alloy column 3, and the inner conductor 121 is welded on the inner wall of the bottom of the zinc alloy column 3 through a solder wire; so that the cable 12 is connected to the zinc alloy column 3 and the spring radiator 13, and signal transmission can be performed.

At the position where the cable 12 corresponds to the zinc alloy tube 4, the outer conductor layer 123 of the cable 12 is tightly attached and fixed to the inner wall of the zinc alloy tube 4. During the assembling operation, the outer sheath 124 at the corresponding position of the cable 12 is peeled off, so that the outer conductor layer 123 of the cable 12 is exposed in the air, and then the zinc alloy tube 4 is sleeved on the cable 12; in this embodiment, the inner diameter of the zinc alloy tube 4 is the same as the outer diameter of the outer conductor layer 123 of the cable 12, and when the zinc alloy tube 4 is sleeved on the cable 12, the inner wall of the zinc alloy tube 4 is tightly attached to the outer conductor 123 of the cable 12, so that the cable 12 is connected to the zinc alloy tube 4, and signal transmission can be performed.

In this embodiment, the zinc alloy column 3 is a nickel-plated zinc alloy column, which is more convenient for welding; it can be more easily soldered to the cable. The zinc alloy tube 4 is a tinned zinc alloy tube, the tinned zinc alloy tube has better oxygen resistance, and the service life of the antenna can be prolonged.

The outer diameter of the zinc alloy column 3 is smaller than that of the zinc alloy pipe 4, and the inner diameter of the heat-shrinkable sleeve 5 is smaller than or equal to that of the zinc alloy column 3. The heat-shrinkable sleeve 5 is made of PE materials, so that the heat-shrinkable sleeve has good deformability and resilience. When the heat-shrinkable sleeve 5 is sleeved on the zinc alloy column 3 and the zinc alloy pipe 4, the sleeving is firmer and more stable.

The rod sleeve 11 is divided into an upper rod sleeve 111 and a lower rod sleeve 112, and the joint of the upper rod sleeve 111 and the lower rod sleeve 112 is detachably and fixedly connected through a buckle or a fastener. In this embodiment, the joint between the upper rod sleeve 111 and the lower rod sleeve 112 is fixedly connected by a fastener, and the rod sleeve 11 is made of ABS material, so that the rod sleeve 11 has high hardness and high compression resistance, and is suitable for external environments.

The inner diameter of the upper part of the lower rod sleeve 112 is smaller than that of the lower part of the lower rod sleeve 112; the upper rod cover 111 has an inner diameter equal to or smaller than that of the upper portion of the lower rod cover 112.

When installing the cable 12, the upper pole cover 111 is opened and removed; so that the upper part of the rod sleeve 11 presents an opening for observing the state of the cable assembly; while also facilitating the operation of mounting the cable assembly and the radiator 13.

Pressing the cable 12 and the radiator 13 from the opening at the bottom of the rod sleeve 11 to the upper part of the rod sleeve, and installing the cable 12 into the lower rod sleeve 112 of the rod sleeve 11 in a vertically matched manner after the radiator 13 passes through the lower rod sleeve 112 and is exposed to the opening of the rod sleeve 11; when the position of the zinc alloy column 3 is clamped to the position of the small inner diameter of the lower rod sleeve 112, and the heat-shrinkable sleeve 5 is clamped to the joint of the small inner diameter and the large inner diameter of the lower rod sleeve 112, the cable assembly is clamped for fixing; then, the outer protective paper on the foam gum 6 is torn off and is adhered to the inner wall of the upper rod sleeve 111, and finally, the upper rod sleeve 111 is installed and fixed. The whole installation process is simple and convenient; more time-saving and labor-saving.

Because heat-shrinkable sleeve 5 has certain deformability, consequently, when installing cable 12 in pole cover 11, heat-shrinkable sleeve 5 can warp under the condition of atress, to the shrink to inside, when heat-shrinkable sleeve 5 installed the position and stopped exerting pressure to it, heat-shrinkable sleeve 5 then can fill whole loop bar 11 because of its self resilience force for heat-shrinkable sleeve 5's outer wall closely laminates with the inner wall of lower sleeve bar 11. The cable 12 can be effectively fixed in the rod sleeve 1, so that the cable is not shaken by external force; the shock resistance and the pressure resistance of the antenna are improved, and the stability and the using effect of the antenna are improved.

The bottom of rod cover 11 articulates there is antenna fixing base 2, rod cover 11 and antenna fixing base 2 between mobilizable angle be 90 degrees. The bottom of the rod sleeve 11 is provided with a slot 113 used for transposition of the antenna fixing seat 2, the side walls of two sides of the slot 113 are provided with a first through hole, the top of the antenna fixing seat 2 is provided with a second through hole corresponding to the first through hole, when the rod sleeve 11 and the antenna fixing seat 2 are installed, the top of the antenna fixing seat 2 is inserted into the inner side of the bottom of the rod sleeve 11, and then the rivet 7 is inserted after the positions of the first through hole and the second through hole correspond to each other to limit and install the rod sleeve and the antenna fixing seat into a whole. The antenna fixing seat can rotate around the rivet 7 to one side of the rod sleeve 11 with the slot 113 on the rivet 7.

The antenna fixing seat 2 is communicated with the inside of the rod sleeve 11; the antenna fixing seat 2 is provided with a clamping groove 21 and an interface 22 which correspond to the mounting holes on the finished product equipment, so that the antenna fixing seat can be conveniently mounted on the finished product equipment. The finished equipment can be routers, external cameras, signal emitting devices, controllers and other electronic products needing to send signals.

Claims

1. A2.4G 3dBi blade external antenna comprises an antenna body (1), wherein an antenna fixing seat (2) is hinged to the bottom of the antenna body (1); the method is characterized in that: the antenna body (1) comprises an antenna shell arranged on the outer side, and a cable (12) and a radiator (13) which are fixedly arranged in the antenna shell; the antenna shell comprises a rod sleeve (11) arranged at the top, and the rod sleeve (11) is of a hollow blade structure; the rod sleeve (11) is divided into an upper rod sleeve (111) and a lower rod sleeve (112), and the joint of the upper rod sleeve (111) and the lower rod sleeve (112) is detachably and fixedly connected through a buckle or a fastener; the cable (12) and the radiator (13) are fixed inside the antenna shell through a fixing element; the cable (12) comprises an inner conductor (121), an insulating layer (122), an outer conductor (123) and an outer sheath (124); the inner conductor (121), the insulating layer (122), the outer conductor (123) and the outer sheath (124) are sequentially arranged from inside to outside.

2. The 2.4G 3dBi blade external antenna of claim 1, wherein: when the upper rod sleeve (111) and the lower rod sleeve (112) are detachably and fixedly connected through a fastener, the rod sleeve (11) is made of ABS material.

3. A 2.4G 3dBi blade external antenna as recited in claim 1 or 2, wherein: the rod sleeve (11) is divided into an upper rod sleeve (111) and a lower rod sleeve (112), and the inner diameter of the upper part of the lower rod sleeve (112) is smaller than that of the lower part of the lower rod sleeve (112); the inner diameter of the upper rod sleeve (111) is equal to or smaller than the inner diameter of the upper part of the lower rod sleeve (112).

4. The 2.4G 3dBi blade external antenna of claim 1, wherein: the fixing element comprises a zinc alloy column (3) and a zinc alloy pipe (4) which are sleeved on the cable (12), and a heat-shrinkable sleeve (5) which is used for connecting and fixing the zinc alloy column (3) and the zinc alloy pipe (4) is sleeved on the outer side of the zinc alloy column (3) and the zinc alloy pipe (4); and foam gum (6) for fixing the radiator (13) in the rod sleeve (11); the outer walls of the heat-shrinkable sleeve (5) and the foam gum (6) are tightly attached to the inner wall of the rod sleeve (11).

5. The 2.4G 3dBi blade external antenna of claim 1 or 4, wherein: the radiator (13) is a spring radiator made of metal materials with good conductivity, the length of the spring radiator is 70-80mm, and the number of turns of the spring is 8-12.

6. The 2.4G 3dBi blade external antenna of claim 5, wherein: the bottom of the spring radiating body (13) is fixedly welded with the inner wall of the top of the zinc alloy column (3), the bottom of the zinc alloy column (3) is fixedly welded with the inner conductor (121) of the cable (12), so that the cable (12) is connected with the zinc alloy column (3) and the spring radiating body (13) and can transmit signals; the cable (12) and the zinc alloy pipe (4) are in corresponding positions, the outer conductor layer (123) of the cable (12) is tightly attached and fixed with the inner wall of the zinc alloy pipe (4), so that the cable (12) is connected with the zinc alloy pipe (4) and can transmit signals.

7. The 2.4G 3dBi blade external antenna of claim 1, wherein: the bottom of rod cover (11) articulates there is antenna fixing base (2), rod cover (11) and antenna fixing base (2) between mobilizable angle be 90 degrees.

8. The 2.4G 3dBi blade external antenna of claim 7, wherein: the antenna fixing structure is characterized in that a slot (113) used for transposition of the antenna fixing seat (2) is formed in the bottom of the rod sleeve (11), a first through hole is formed in the side wall of each of two sides of the slot (113), a second through hole corresponding to the first through hole is formed in the antenna fixing seat (2), a rivet (7) is inserted into the first through hole and the second through hole, and the antenna fixing seat (2) can rotate around the rivet (7) towards one side of the rod sleeve with the slot (113).

9. A 2.4G 3dBi blade external antenna according to claim 1 or 8, wherein: and the antenna fixing seat (2) is provided with a clamping groove (21) and an interface (22) which correspond to the mounting hole on the finished product equipment.