CN210040539U - Antenna and electronic equipment - Google Patents
Antenna and electronic equipment Download PDFInfo
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- CN210040539U CN210040539U CN201921406457.7U CN201921406457U CN210040539U CN 210040539 U CN210040539 U CN 210040539U CN 201921406457 U CN201921406457 U CN 201921406457U CN 210040539 U CN210040539 U CN 210040539U
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Abstract
The application discloses an antenna and an electronic device, wherein the antenna comprises a radio frequency coaxial connector and a spiral antenna body with conductivity, the spiral antenna body comprises a first spiral part with a first screw pitch and a second spiral part with a second screw pitch, and the first screw pitch is smaller than the second screw pitch; the radio frequency coaxial connector comprises a shell, an insulator and an inner core with conductivity, wherein the insulator is arranged in the shell, the shell is sleeved on the inner core through the insulator, and the inner core penetrates through the shell and is isolated from the shell through the insulator; one end of the second spiral part is connected with one end of the first spiral part to form a whole, and the other end of the second spiral part is welded with one end of the inner core. The antenna has the advantages of simple and compact structure, small volume and low cost.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an antenna and an electronic device.
Background
Automobile antenna calls vehicle antenna again, be the important part that is used for receiving and dispatching signal among the mobile unit, it mainly divide into car built-in antenna and external antenna, wherein, use external antenna mostly in current mobile unit, especially SMD PCB (printed circuit board) antenna (printed circuit board) not, but the structure of this type of mobile antenna is generally compact inadequately, it is great to lead to the shared volume of casing, it is pleasing to the eye to influence the car, and be connected with the singlechip mainboard among the mobile unit for convenience, generally need dispose longer coaxial cable as the transmission line of signal, therefore, the use cost of antenna has been increased.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide an antenna and electronic equipment, aim at solving the current bulky, with high costs problem of on-vehicle antenna.
The application provides an antenna, which comprises a radio frequency coaxial connector and a spiral antenna body with conductivity, wherein the spiral antenna body comprises a first spiral part with a first pitch and a second spiral part with a second pitch, and the first pitch is smaller than the second pitch; the radio frequency coaxial connector comprises a shell, an insulator and an inner core with conductivity, wherein the insulator is arranged in the shell, the shell is sleeved on the inner core through the insulator, and the inner core penetrates through the shell and is isolated from the shell through the insulator; one end of the second spiral part is connected with one end of the first spiral part to form a whole, and the other end of the second spiral part is welded with one end of the inner core.
Furthermore, the shell comprises a mounting base and a columnar shell, a first through hole is formed in the shell, and the shell is sleeved on the insulator through the first through hole; one end of the shell, which is far away from the second spiral part, is fixedly connected with the top of the mounting base to form a whole, a second through hole is formed in the mounting base, and the first through hole is communicated with the second through hole; the inner core passes through first through-hole and second through-hole, runs through casing and installation base.
Further, the bottom of the mounting base has a plurality of pins.
Further, the insulator comprises a first insulating portion and a second insulating portion, the first insulating portion is located at one end, close to the second spiral portion, of the shell, the second insulating portion is located at one end, far away from the second spiral portion, of the shell, a gap exists between the first insulating portion and the second insulating portion, the first insulating portion is matched with the first through hole, and the second insulating portion is matched in the first through hole and/or the second through hole.
Further, the bottom of the second insulating portion is flush with the bottom of the mounting base, or in the axial direction of the rf coaxial connector, a first distance between the bottom of the second insulating portion and the bottom of the first insulating portion is smaller than a second distance between the bottom of the mounting base and the bottom of the first insulating portion.
Further, the inner core comprises an upper core part, a middle core part and a lower core part which are sequentially connected, a first insulating part is sleeved on the upper core part, and a second insulating part is sleeved on the lower core part, wherein the diameter of the middle core part is larger than that of the upper core part and that of the lower core part.
Further, one end of the shell close to the second spiral part is provided with an annular flange part, the caliber of the flange part is smaller than the diameter of the first through hole, and the first insulation part is located between the flange part and the central core part.
Further, the diameter of the first through hole is equal to the diameter of the second through hole.
Furthermore, the antenna further comprises an insulating sleeve, and the insulating sleeve covers the spiral antenna body and the radio frequency coaxial connector.
The application also provides an electronic device comprising the antenna.
The beneficial effect of this application is: the antenna that this application provided adopts the structural design of integration, mainly forms by the equipment of spiral antenna body and radio frequency coaxial connector two parts, and simple structure is compact, and is small, during the installation use, only need with the radio frequency coaxial connector keep away from the one end of second spiral portion install on the singlechip mainboard can, and need not to use extra coaxial cable to connect, saved the use cost of antenna.
Drawings
Fig. 1 is a schematic external structural diagram of an antenna according to an embodiment of the present application;
fig. 2 is a schematic diagram of an internal structure of an antenna according to an embodiment of the present application;
fig. 3 is a schematic diagram of the internal structure of an antenna according to another embodiment of the present application;
fig. 4 is a schematic view of an antenna installation according to an embodiment of the present application.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1, 2 and 4, the present embodiment provides an antenna including a radio frequency coaxial connector 2 and a helical antenna body 1 having conductivity, the helical antenna body 1 including a first helical portion 11 having a first pitch and a second helical portion 12 having a second pitch, wherein the first pitch is smaller than the second pitch; the radio frequency coaxial connector 2 comprises a shell, an insulator (not shown in the figure) and an inner core 21 with conductivity, wherein the insulator is arranged in the shell, the shell is sleeved on the inner core 21 through the insulator, and the inner core 21 penetrates through the shell and is isolated from the shell through the insulator; one end of the second spiral part 12 is integrally connected to one end of the first spiral part 11, and the other end is welded to one end of the core 21.
In this embodiment, this antenna adopts the structural design of integration, mainly by spiral antenna body 1 and the assembly of radio frequency coaxial connector 2 two parts form, simple structure is compact, and is small, during the installation use, only need with radio frequency coaxial connector 2 keep away from the one end of second spiral portion 12 install on singlechip mainboard 4 can, and need not to use extra coaxial cable to connect, saved the use cost of antenna.
The working principle of the antenna is as follows: when the radio-frequency signals are transmitted outwards, the radio-frequency signals start from the singlechip mainboard 4 and enter the second spiral part 12 through the transmission of the inner core 21, a small part of the radio-frequency signals are radiated to the outside by the second spiral part 12, and the rest parts of the radio-frequency signals continue to be transmitted to the first spiral part 11 along the second spiral part 12 and are radiated to the outside by the first spiral part 11, so that the transmission of the signals is realized; when receiving external radio frequency signals, the first spiral part 11 can receive a small part of radio frequency signals, the second spiral part 12 can receive a large part of radio frequency signals, and the received radio frequency signals are directly transmitted to the single chip microcomputer mainboard 4 through the inner core 21, so that the signals are received. This integration antenna is when receiving and dispatching radio frequency signal, and signal transmission distance is short, and at signal transmission's in-process, does not have the metal moreover and shelters from, therefore signal loss is little, can obtain good signal receiving and dispatching effect, and simultaneously, the spiral part of spiral antenna body 1 adopts the structural design of "close up is dredged down" (first pitch is less than the second pitch) for certain radiating efficiency and operating frequency bandwidth can be satisfied to the antenna.
Referring to fig. 1 and 2, in an alternative embodiment, the housing includes a mounting base 23 and a cylindrical shell 22, the shell 22 has a first through hole (not shown), and the shell 22 is sleeved on the insulator through the first through hole; one end of the shell 22 far away from the second spiral part 12 is fixedly connected with the top of the mounting base 23 to form a whole, a second through hole is formed in the mounting base 23, and the first through hole is communicated with the second through hole; the core 21 passes through the housing 22 and the mounting base 23 through the first through hole and the second through hole.
In this embodiment, the casing of the radio frequency coaxial connector 2 is mainly an integrated structure composed of the cylindrical casing 22 and the mounting base 23, the structure is compact and beautiful, when the radio frequency coaxial connector is mounted and used, the mounting base 23 is only required to be mounted on the singlechip mainboard 4, the integral mounting of the whole antenna can be realized, the mounting is very convenient and fast, moreover, the insulator is accommodated in a through hole, and the radio frequency coaxial connector is convenient to implement, and is favorable for saving materials and reducing the cost.
Referring to fig. 1 and 2, in an alternative embodiment, the bottom of the mounting base 23 has a plurality of pins 231.
In this embodiment, the number of the pins 231 is not specifically limited, as long as the installation requirement can be met, in a specific embodiment, one end of the inner core 21, which is far away from the second spiral part 12, penetrates through the installation base 23 and is flush with the bottom end of each pin 231 (mainly considering the beauty), correspondingly, the single chip microcomputer mainboard 4 is provided with an installation hole corresponding to each pin 231 and an installation hole corresponding to one end of the inner core 21, when the antenna is installed and used, the whole antenna can be integrally installed only by inserting one end of each pin 231 and one end of the inner core 21 into the corresponding installation hole and welding the pins, and the installation is very convenient and firm.
Referring to fig. 1 and 2, in an alternative embodiment, the insulator includes a first insulating portion 241 and a second insulating portion 242, the first insulating portion 241 is located at an end of the housing 22 close to the second spiral portion 12, the second insulating portion 242 is located at an end of the housing 22 far from the second spiral portion 12, a space exists between the first insulating portion 241 and the second insulating portion 242, the first insulating portion 241 is matched with the first through hole, and the second insulating portion 242 is matched with the first through hole and/or the second through hole.
In this embodiment, the sectional design of the insulator not only can ensure the stability of the connection between the helical antenna body 1 and the rf coaxial connector 2, and avoid the helical antenna body 1 from contacting with external metal to affect the receiving and transmitting effect of signals (for example, avoid contacting with the metal part of the rf coaxial connector 2), but also can save material cost. Specifically, the first insulating portion 241 and the second insulating portion 242 may be cylinders of plastic, wherein the first insulating portion 241 is matched with the first through hole (e.g. clearance fit, transition fit, etc.), the second insulating portion 242 may be disposed in the first through hole (e.g. when the diameter of the first through hole is smaller than that of the second through hole, the second insulating portion 242 is transition fit with the first through hole), may be disposed in the second through hole (e.g. when the diameter of the first through hole is larger than that of the second through hole, the second insulating portion 242 is transition fit with the second through hole), or may be disposed in both the first through hole and the second through hole (e.g. when the diameter of the first through hole is equal to that of the second through hole, the second insulating portion 242 is transition fit with the first through hole and the second through hole), as long as the usage requirement can be met, without any specific limitation, a third through hole (not shown in the drawing) matched with the inner core 21 is disposed in each of the first insulating portion 241 and the second insulating portion 242, the first insulating portion 241 and the second insulating portion 242 are sleeved on the core 21 through the third through hole.
Referring to fig. 2 and 4, in an alternative embodiment, the bottom of the second insulating portion 242 is flush with the bottom of the mounting base 23, or a first distance between the bottom of the second insulating portion 242 and the bottom of the first insulating portion 241 is smaller than a second distance between the bottom of the mounting base 23 and the bottom of the first insulating portion 241 in the axial direction of the rf coaxial connector 2.
In some embodiments, the bottom of the second insulating portion 242 is flush with the bottom of the mounting base 23, which not only ensures that the mounting base 2332 can be smoothly mounted on the motherboard 45 of the single chip microcomputer, but also has a more beautiful structure; in other embodiments, in the axial direction of the rf coaxial connector 23, a first distance between the bottom of the second insulating portion 242 and the bottom of the first insulating portion 241 is smaller than a second distance between the bottom of the mounting base 23 and the bottom of the first insulating portion 241, so that material cost can be saved, and the second insulating portion 242 is prevented from protruding out of the bottom of the mounting base 23 to affect the overall mounting.
Referring to fig. 1 and 2, in an alternative embodiment, the inner core 21 includes an upper core portion 211, an intermediate core portion 212, and a lower core portion 213 connected in sequence, a first insulation portion 241 is sleeved on the upper core portion 211, and a second insulation portion 242 is sleeved on the lower core portion 213, wherein a diameter of the intermediate core portion 212 is larger than a diameter of the upper core portion 211 and a diameter of the lower core portion 213.
In this embodiment, the inner core 21 has a structural design of "big middle and small ends", so that the first insulating portion 241 and the second insulating portion 242 can be conveniently disposed at two ends of the rf coaxial connector 2, and after the helical antenna body 1 and the inner core 21 are welded together, the inner core 21 is prevented from being unstably mounted to cause the helical antenna body 1 to shake.
Referring to fig. 1 and 2, in an alternative embodiment, one end of the housing 22 near the second spiral portion 12 has an annular flange portion 221, the diameter of the flange portion 221 is smaller than the diameter of the first through hole, and the first insulating portion 241 is located between the flange portion 221 and the central core portion 212.
In this implementation, specifically, during the assembly, the first insulating portion 241 and the second insulating portion 242 can be respectively sleeved at two ends of the inner core 21, then the inner core 21 sleeved with the first insulating portion 241 and the second insulating portion 242 is inserted into the casing 22 through the second through hole from the bottom of the mounting base 23, due to the blocking of the flange portion 221, the inner core 21 sleeved with the first insulating portion 241 and the second insulating portion 242 can be conveniently and stably mounted in the casing 22, the integral assembly of the radio frequency coaxial connector 2 is realized, and then the one end of the second spiral portion 12 and the one end of the inner core 21 far away from the mounting base 23 are welded to assemble an integrated antenna structure.
Referring to fig. 2, in an alternative embodiment, the diameter of the first through hole is equal to the diameter of the second through hole.
In this embodiment, through the structural design that the diameter that adopts first through-hole equals the diameter of second through-hole, when production, be favorable to reducing the processing degree of difficulty of two through-holes, and then be favorable to reducing manufacturing cost, of course, when concrete implementation, the diameter of first through-hole also can be the diameter that is less than or equal to the second through-hole, as long as can satisfy the user demand can, do not do specific restriction to this.
Referring to fig. 2 to 4, in an alternative embodiment, the antenna further includes an insulating sleeve 3, and the insulating sleeve 3 covers the helical antenna body 1 and the radio frequency coaxial connector 2.
In the present embodiment, the insulating sleeve 3 is disposed to not only achieve an aesthetic effect, but also achieve a protective effect, so as to protect a main portion of the antenna, especially the helical antenna body 1, from being damaged by improper manual operation, specifically, the insulating sleeve 3 is a cylindrical plastic shell, in some embodiments, the insulating sleeve 3 may wrap the helical antenna body 1 and the rf coaxial connector 2 by means of sleeving, in other embodiments, the insulating sleeve 3 may also wrap the helical antenna body 1 and the rf coaxial connector 2 by means of screwing (for example, an internal thread is disposed at an end of the insulating sleeve 3 away from the first helical portion 11, and a corresponding external thread is disposed on the cylindrical shell 22), and of course, the helical antenna body 1 and the rf coaxial connector 2 may also be accommodated in the insulating sleeve 3 by other manners, the present invention is not particularly limited as long as it satisfies the use requirement.
Referring to fig. 1 and 2, in some specific embodiments, the material of the helical antenna body 1 may preferably be a copper material, and the material of the housing 22, the mounting base 23 and the pin 231 in the rf coaxial connector 2 may preferably be a copper material, based on the combination of the electrical conductivity and the material cost. The wire diameter of the spiral antenna body 1 can be 0.4-0.8 mm, the first pitch can be 0.5-2 mm, the second pitch can be 1-3 mm, the diameter of the inner core 21 can be 0.5-0.7 mm, and the diameter of the shell 22 in the radio frequency coaxial connector 2 can be 4-6 mm; in the axial direction of the radio frequency coaxial connector 2, the length of the first spiral part 11 may be 3-10 mm, the length of the second spiral part 12 may be 6-15 mm, the length of the inner core 21 may be 28-35 mm, and the length of the shell 22 in the radio frequency coaxial connector 2 may be 20-25 mm.
The embodiment of the application further provides an electronic device, which comprises the antenna.
In this embodiment, the electronic device is a device including one or more antennas in any of the above embodiments, and these devices may be specially designed and manufactured for the required purpose, for example, a car machine, a radio, a router, etc., without being limited in particular.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. An antenna comprising a radio frequency coaxial connector and a helical antenna body having electrical conductivity, the helical antenna body comprising a first helical portion having a first pitch and a second helical portion having a second pitch, wherein the first pitch is less than the second pitch; the radio frequency coaxial connector comprises an outer shell, an insulator and an inner core with conductivity, wherein the insulator is arranged in the outer shell, the outer shell is sleeved on the inner core through the insulator, and the inner core penetrates through the outer shell and is isolated from the outer shell through the insulator; one end of the second spiral part is connected with one end of the first spiral part to form a whole, and the other end of the second spiral part is welded with one end of the inner core.
2. The antenna of claim 1, wherein the housing comprises a mounting base and a cylindrical shell, the shell having a first through hole therein, the shell being sleeved on the insulator through the first through hole; one end of the shell, which is far away from the second spiral part, is fixedly connected with the top of the mounting base to form a whole, a second through hole is formed in the mounting base, and the first through hole is communicated with the second through hole; the inner core penetrates through the shell and the mounting base through the first through hole and the second through hole.
3. The antenna of claim 2, wherein the bottom of the mounting base has a plurality of pins.
4. The antenna according to claim 2, wherein the insulator includes a first insulating portion and a second insulating portion, the first insulating portion is located at an end of the housing close to the second spiral portion, the second insulating portion is located at an end of the housing far from the second spiral portion, a space exists between the first insulating portion and the second insulating portion, the first insulating portion is matched with the first through hole, and the second insulating portion is matched with the first through hole and/or the second through hole.
5. The antenna of claim 4, wherein a bottom of the second insulating portion is flush with a bottom of the mounting base, or a first distance between the bottom of the second insulating portion and the bottom of the first insulating portion is smaller than a second distance between the bottom of the mounting base and the bottom of the first insulating portion in an axial direction of the RF coaxial connector.
6. The antenna of claim 4, wherein the inner core comprises an upper core portion, a middle core portion and a lower core portion connected in sequence, the first insulating portion is sleeved on the upper core portion, the second insulating portion is sleeved on the lower core portion, and a diameter of the middle core portion is larger than a diameter of the upper core portion and a diameter of the lower core portion.
7. The antenna of claim 6, wherein an end of the housing near the second helical portion has an annular flange portion having a diameter smaller than a diameter of the first through hole, and the first insulating portion is located between the flange portion and the central core portion.
8. The antenna of any one of claims 2 to 7, wherein the diameter of the first through hole is equal to the diameter of the second through hole.
9. The antenna of any one of claims 1 to 7, further comprising an insulative sleeve encasing the helical antenna body and the radio frequency coaxial connector.
10. An electronic device, characterized in that it comprises an antenna according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406457.7U CN210040539U (en) | 2019-08-27 | 2019-08-27 | Antenna and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406457.7U CN210040539U (en) | 2019-08-27 | 2019-08-27 | Antenna and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040539U true CN210040539U (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921406457.7U Active CN210040539U (en) | 2019-08-27 | 2019-08-27 | Antenna and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040539U (en) |
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2019
- 2019-08-27 CN CN201921406457.7U patent/CN210040539U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20220526 Address after: 518000 floor 1, building 3, Dexin Chang wisdom Park, No. 23 Heping Road, Qinghua community, Longhua street, Longhua District, Shenzhen, Guangdong Patentee after: Shenzhen waterward Information Co.,Ltd. Address before: 518000 B, 503, 602, digital city building, garden city, 1079 Shekou Road, Shekou, Nanshan District, Shenzhen, Guangdong. Patentee before: SHENZHEN WATER WORLD Co.,Ltd. |
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