CN211957906U

CN211957906U - DAM-GPS antenna

Info

Publication number: CN211957906U
Application number: CN202020695851.3U
Authority: CN
Inventors: 徐相
Original assignee: Danling Yihong Electronic Technology Co ltd
Current assignee: Danling Yihong Electronic Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-11-17
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a DAM-GPS antenna, including the antenna housing, connect the feeder of antenna housing, connect the column cap that connects of feeder one end, the connector of being connected with the connector lug head, the cover is established at the feeder and is connect the heat shrinkage bush of column cap, the PCB board of setting in the antenna housing, integrated DAM chip and GPS module on the PCB board, the antenna of printing on the PCB board, the both ends of feeder are connected respectively and are connect column cap and antenna housing, the inner connection end of feeder is provided with exposed multilayer structure, the connector lug head is connected to the connector, the heat shrinkage bush cover is established at the feeder and is connect the junction of column cap, the PCB board sets up in the antenna housing, integrated DAM chip and GPS module on the PCB board, the antenna is the printed circuit structure on the PCB board; this structure can make this structure modularization in the antenna casing, installs through connecting the feeder, and convenience of customers dismantles, and it is simple to dismantle moreover, does not need professional just can firmly connect, keeps the performance of antenna.

Description

DAM-GPS antenna

Technical Field

The utility model relates to a communication antenna technical field particularly, relates to DAM-GPS antenna.

Background

An antenna is a transducer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa. A component for transmitting or receiving electromagnetic waves in a radio device. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy and the like all use electromagnetic waves to transmit information and work by depending on antennas. In addition, in transferring energy with electromagnetic waves, non-signal energy radiation also requires antennas. The antennas are generally reciprocal in that the same pair of antennas can be used as both transmit and receive antennas. In the field of wireless communications, the trend in the direction of communication signals is towards digitization, primarily because of the superior spectral efficiency of digital signals as compared to analog signals. To meet the increasingly demanding user requirements for signal center frequency, spectral density and spectral width, the requirements for communication equipment are increasingly complex and demanding.

The digital modulation antenna in the prior art can emit certain heat in the using process, if the heat cannot be dissipated in time, the receiving or transmitting function can be affected, the performance of the existing cable cannot be kept unchanged for a long time, and under the consideration of cost, a feeder line of the antenna needs to be replaced, but the existing digital modulation antenna does not have the function of conveniently replacing the feeder line.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a DAM-GPS antenna, it can make this structure modularization in the antenna housing, installs through connecting the feeder, and convenience of customers dismantles, and it is simple to dismantle moreover, does not need the professional just can firmly connect, keeps the performance of antenna.

The embodiment of the utility model is realized like this:

the DAM-GPS antenna comprises an antenna shell, a feeder line connected to the antenna shell, a connecting column head connected with one end of the feeder line, a connector connected with the connecting column head, a heat-shrinkable sleeve sleeved on the feeder line and the connecting column head, a PCB arranged in the antenna shell, a DAM chip and a GPS module integrated on the PCB, and an antenna printed on the PCB, wherein one end of the feeder line connected with the PCB is an external end, one end of the feeder line connected with the connector is an internal end, the internal end is provided with an exposed multilayer structure, the multilayer structure comprises a cable core, a protective sleeve layer, a flexible grid layer and a cable sleeve from inside to outside, the multilayer structure forms an annular step shape at the internal end, the outer diameter of an annular step from the cable core to the cable sleeve is increased, the connecting column head is connected to the connector and is provided with a jack for the internal end of the feeder line to be inserted, the internal ends are mutually matched and electrically connected through the inserting connecting column head, at least two annular grooves which are mutually, and a reinforcing ring is embedded in the annular groove, and after the connecting column head is connected with the inner connection end of the feeder line, the heat-shrinkable sleeve is sleeved and wrapped on the connecting column head and the inner connection end of the feeder line and is packaged and fixed.

In the preferred embodiment of the present invention, the external connection end of the feeder is provided with a connection protrusion for connecting the cable core in the feeder, the side of the antenna housing is provided with a metal groove formed in an inward concave manner, and the metal groove is connected to the circuit of the PCB board.

In the preferred embodiment of the present invention, the whole of the terminating protrusion is cylindrical and provided with external threads, the metal groove of the antenna housing is provided with internal threads, and the external end of the feeder line is fixed to the antenna housing by thread matching.

In the preferred embodiment of the present invention, the position of the protecting sleeve for the cable core is provided with a circular protrusion for press-type contact, so as to ensure stable contact between the cable core and the inner wall of the insertion hole connected to the column head.

In a preferred embodiment of the present invention, the flexible mesh layer is exposed to 3-5cm outside the cable sheath, the protective sheath is exposed to 1-2cm outside the cable sheath, and the cable core is exposed to 2-3cm outside the protective sheath.

In a preferred embodiment of the present invention, the flexible mesh layer is a filamentous cross structure made of organic polymer.

In a preferred embodiment of the present invention, the DAM chip and the GPS module are electrically connected to a feeder line connected to the metal slot through a circuit on the PCB together with the antenna.

In a preferred embodiment of the present invention, the antenna is formed by a printed circuit on a PCB, and the operating frequency band of the antenna is 1470-1680 MHz.

The utility model has the advantages that:

the utility model discloses a feeder is connected antenna housing and connector, and the outer end of feeder passes through termination arch and antenna housing's metal slot screw thread accordant connection, the inner terminal of feeder inserts through the multilayer structure of exposed annular step form and connects the jack of column cap interior matching fixed, firmly be connected feeder and antenna housing and connector like this, convenient the dismantlement simultaneously, annular groove and the gusset ring through the setting of column cap, fasten the heat shrinkable bush in the one end of column cap, and the heat shrinkable bush is sealed fixed with the cable cover of feeder, toughness grid layer and the heat shrinkable bush of setting, the heat resistance of feeder has been strengthened; this structure is based on the antenna of DAM digital modulation and GPS module, can make this structure modularization in the antenna housing, installs through connecting the feeder, and convenience of customers dismantles, and it is simple to dismantle moreover, does not need professional just can firmly connect, keeps the performance of antenna.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope.

FIG. 1 is a schematic diagram of the junction between the connector and the feed line of the DAM-GPS antenna of the present invention;

FIG. 2 is a schematic diagram of the DAM-GPS antenna of the present invention;

FIG. 3 is a schematic diagram of the internal PCB of the DAM-GPS antenna of the present invention;

icon: 1-an antenna housing; 2-a PCB board; 3-DAM chip; 4-a GPS module; 5-an antenna; 6-a connector; 7-a feeder; 8-heat shrinkable tubing; 9-reinforcing rings; 10-connecting the column head; 11-a cable core; 12-a protective sheath; 13-a ductile mesh layer; and 14-cable sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

First embodiment

Referring to fig. 1 and fig. 2, the DAM-GPS antenna of this embodiment is provided, which includes an antenna housing 1, a feeder 7, a post head 10, a connector 6, a heat shrinkage bush 8, a PCB 2, a DAM chip 3, a GPS module 4, and an antenna 5, wherein two ends of the feeder 7 are respectively connected to the post head 10 and the antenna housing 1, one end of the feeder 7 connected to the PCB 2 is an external end, one end of the feeder 7 connected to the connector 6 is an internal end, the internal end is provided with an exposed multi-layer structure, the post head 10 is connected to the connector 6, the heat shrinkage bush 8 is sleeved at a connection position of the feeder 7 and the post head 10, the PCB 2 is disposed in the antenna housing 1, the PCB 2 is integrated with the DAM chip 3 and the GPS module 4, the antenna 5 is a printed circuit structure on the PCB 2, an operating frequency band of the antenna 5 of this embodiment is 1470-plus 1680MHz, the antenna 5 is inserted and matched with the internal end of the feeder 7 through the post head, so that the heat-shrinkable sleeve 8 can wrap and encapsulate the feeder 7 and the post head 10, and the external end of the feeder 7 is matched with the antenna shell 1 through threads, thus, the feeder 7 can be conveniently detached from the connector 6 and the antenna shell 1, and the joint has certain heat resistance and is firmly connected.

The inner connection end of the feeder 7 is provided with an exposed multilayer structure, the multilayer structure is in a multilayer cylindrical shape, and a multilayer ring sleeve shape with the same circle center on the cross section is formed from the center to the outer side of the multilayer structure, the multilayer structure comprises a cable core 11, a protective sleeve 12, a tough mesh layer 13 and a cable sleeve 14 from inside to outside, the cable core 11 positioned at the circle center is a metal copper wire so as to have higher transmission performance, the protective sleeve 12 is sleeved outside the cable core 11 and wraps the cable core inside, the outer diameter of the cable core 11 is 1mm, the outer diameter of the protective sleeve 12 is 2mm, the tough mesh layer 13 is sleeved outside the protective sleeve 12, the cable sleeve 14 wraps the tough mesh layer 13, the tough mesh layer 13 of the embodiment is a filiform cross structure made of synthetic fiber aramid, the tough mesh layer 13 made of aramid fiber has high temperature resistance, wherein the thickness of the tough mesh layer 13 is 0.5mm, namely, the outer diameter of the flexible grid layer 13 is 2.5mm, the thickness of the cable sleeve 14 is 1mm, namely, the outer diameter of the cable sleeve 14 is 3.5 mm; the multilayer structure forms an annular step shape at the inner connecting end, the annular step shape is gradually exposed from the outside to the inside, namely the tough gridding layer 13 is exposed out of the cable sleeve 14 layer by 4cm, the protective sleeve 12 layer is exposed out of the cable sleeve 141.5cm, the cable core 11 is exposed out of the protective sleeve 122cm, and the outer diameter of the annular step from the cable core 11 to the cable sleeve 14 is gradually increased.

The connecting column head 10 is connected to the connector 6, the connecting column head 10 and the connector 6 are of an integrally formed structure, the connecting column head 10 is provided with a jack into which an inner terminal of the feeder line 7 is inserted, the inner terminals are mutually matched and electrically connected by being inserted into the connecting column head 10, the shape of the jack is consistent with that of a multilayer structure of the inner terminal of the feeder line 7, the inner wall of the jack of the connecting column head 10 is made of metal, namely, the exposed cable core 11, the protective sleeve 12 and the flexible grid layer 13 are inserted into the jack of the connecting column head 10 and keep electric communication, and in order to ensure that a passage is formed, a circular bulge for press type contact is arranged at the position, close to the protective sleeve 12, of the cable core 11, and the circular bulge is made of the same material as the cable core 11 and is integrally formed so as to ensure that the cable; the connecting column head 10 is in a cylindrical shape, two annular grooves which are spaced from each other are formed in the outer side of the connecting column head 10, the depth of each annular groove is 2.5mm, the distance between the two annular grooves is 1mm, a reinforcing ring 9 is embedded in each annular groove, the reinforcing ring 9 is made of silicon rubber, the reinforcing ring 9 is matched with the annular grooves, due to a heating mechanism, heat can be generated when the connecting column head 10 works, the reinforcing ring 9 expands, the reinforcing ring 9 tightly presses the connecting column head 10 and the inner wall of the heat-shrinkable sleeve 8, sealing performance is kept, after the connecting column head 10 is connected with the inner connection end of the feeder line 7, the heat-shrinkable sleeve 8 is sleeved on and wrapped on the inner connection ends of the connecting column head 10 and the feeder line 7 and is packaged and fixed, and the length of the heat-shrinkable sleeve 8 wrapped outside the cable sleeve 14 is 4 mm.

Referring to fig. 3, the external connection end of the feeder 7 is provided with a termination protrusion connected to the cable core 11 in the feeder 7, the termination protrusion is made of a metal copper material, and the termination protrusion is integrally connected to the cable core 11, a metal groove recessed inward is formed in the side surface of the antenna housing 1, the metal groove is used for being connected to a circuit of the PCB 2, the PCB 2 is integrated with the DAM chip 3 and the GPS module 4, the chip and the module are electrically connected to the metal groove through the circuit formed in the PCB 2 and are communicated with the termination protrusion of the external connection end of the feeder 7 through the metal groove, the cylindrical side surface of the termination protrusion is provided with external threads, the metal groove of the antenna housing 1 is provided with internal threads, and the external connection end of the feeder 7 is fixed to the antenna housing 1 through the termination protrusion in a threaded matching manner.

To sum up, the embodiment of the utility model discloses the antenna housing is connected with the connector through the feeder, and the outer end of feeder passes through termination arch and antenna housing's metal trough screw thread matching connection, the inner terminal of feeder inserts through the multilayer structure of exposed annular step form and connects the jack of column cap interior matching fixed, firmly be connected feeder with antenna housing and connector like this, convenient dismantlement simultaneously, through the annular groove and the strengthening ring that the column cap set up, fasten the heat shrinkage bush in the one end of column cap, and the cable cover sealing fixation of heat shrinkage bush and feeder, the toughness layer and the heat shrinkage bush of setting, the heat resistance of feeder has been strengthened; this structure is based on the antenna of DAM digital modulation and GPS module, can make this structure modularization in the antenna housing, installs through connecting the feeder, and convenience of customers dismantles, and it is simple to dismantle moreover, does not need professional just can firmly connect, keeps the performance of antenna.

This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.

Claims

The DAM-GPS antenna is characterized by comprising an antenna shell, a feeder line connected to the antenna shell, a connecting column head connected with one end of the feeder line, a connector connected with the connecting column head, a heat-shrinkable sleeve sleeved on the feeder line and the connecting column head, a PCB arranged in the antenna shell, a DAM chip and a GPS module integrated on the PCB, and an antenna printed on the PCB, wherein one end of the feeder line connected with the PCB is an external end, one end of the feeder line connected with the connector is an internal end, the internal end is provided with an exposed multilayer structure, the multilayer structure comprises a cable core, a protective sleeve layer, a tough grid layer and a cable sleeve from inside to outside, the multilayer structure forms a ring-shaped step at the internal end, the outer diameter of the ring-shaped step from the cable core to the cable sleeve is increased, the connecting column head is connected to the connector and is provided with a jack for the internal end of the feeder line to be inserted, and the internal ends are mutually matched and electrically connected through the inserting connecting column, the outer side of the connecting column head is provided with at least two annular grooves which are spaced from each other, a reinforcing ring is embedded in each annular groove, and after the connecting column head is connected with the inner connection end of the feeder line, the heat-shrinkable sleeve is sleeved on the inner connection ends of the connecting column head and the feeder line and is packaged and fixed.
2. The DAM-GPS antenna according to claim 1, wherein the external connection end of the feeder line is provided with a termination protrusion for connecting a cable core in the feeder line, and the side surface of the antenna housing is provided with a metal groove recessed inward, the metal groove being in electrical communication with a circuit of the PCB board.
3. The DAM-GPS antenna according to claim 2, wherein the terminating protrusion is cylindrical as a whole and has an external thread on a side surface thereof, the metal groove of the antenna case is provided with an internal thread, and the external connection end of the feed line is screwed and fixed to the antenna case.
4. The DAM-GPS antenna according to claim 1, wherein the cable core is provided at a position against the protective sheath with a circular protrusion for press-contact to ensure stable contact of the cable core with the inner wall of the insertion hole of the stud head.
5. The DAM-GPS antenna of claim 4, wherein the flexible mesh layer is exposed to the cable jacket for 3-5cm, the protective jacket is exposed to the cable jacket for 1-2cm, and the cable core is exposed to the protective jacket for 2-3 cm.
6. The DAM-GPS antenna of claim 4, wherein the flexible mesh layer is a filamentous cross-structure made of an organic polymer.
7. The DAM-GPS antenna according to claim 1, wherein the DAM chip and the GPS module are electrically connected to a feed line connected to the metal slot together with the antenna through a circuit on the PCB board.
8. The DAM-GPS antenna of claim 7, wherein the antenna is formed by printing a circuit on a PCB, and the operating frequency band of the antenna is 1470 and 1680 MHz.