CN209747716U - Single-frequency band antenna for smoke alarm - Google Patents
Single-frequency band antenna for smoke alarm Download PDFInfo
- Publication number
- CN209747716U CN209747716U CN201920593798.3U CN201920593798U CN209747716U CN 209747716 U CN209747716 U CN 209747716U CN 201920593798 U CN201920593798 U CN 201920593798U CN 209747716 U CN209747716 U CN 209747716U
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- coaxial line
- place
- alarm
- band antenna
- frequency band
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Abstract
The utility model discloses a single-frequency band antenna for smoke alarm, paste in alarm shell inner wall, single-frequency band antenna includes the coaxial line, the place with present the point, the coaxial line includes first coaxial line and second coaxial line, the place includes first place and second place, first place sets up the one end at first coaxial line, the mainboard connection in one end and the alarm of first place is kept away from to first coaxial line, the second place sets up the one end at the second coaxial line, the one end that the second place was kept away from to the second coaxial line is connected with the bee calling organ in the alarm, present the point and be connected with first place. The utility model has the advantages and the beneficial effects that: the utility model provides a single-frequency band antenna for smoke alarm adopts FPC and adds the coaxial line form, and this antenna is not only sensitivity extremely strong, and transmission TRP performance is also very high moreover, very big improvement the alarm receive with the transmitting performance, can be at the very first time accurate warning.
Description
Technical Field
The utility model relates to an antenna technology field, in particular to a single-frequency band antenna for smoke alarm.
Background
With the more and more common application of wireless products, a large number of corresponding ICs appear, and meanwhile, the volume requirement of electronic products is also smaller and smaller, and the design size of the FPC is correspondingly limited. In wireless products, the antenna is an indispensable application device, and in order to reduce cost, reduce the volume of the FPC and ensure the performance of wireless signal transmission, the excellent FPC antenna design increasingly highlights the important position.
At present, all the antennas of the general smoke alarm are made of springs or metal sheets. However, the performance of these two types of antennas is greatly affected by the structure of the smoke alarm, often the bandwidth is not enough, and both TRP transmission and TIS reception are poor, resulting in untimely alarm of the alarm.
SUMMERY OF THE UTILITY MODEL
In order to overcome the relatively poor smog annunciator phenomenon that leads to smog annunciator not to report to the police or malfunction of current smog annunciator spring or sheetmetal antenna sensitivity, the utility model provides a single-frequency band antenna for smog annunciator adopts FPC to add the coaxial line form, and this antenna is not only extremely strong in sensitivity, and transmission TRP performance is also very high moreover, very big improvement the alarm receive with the transmission performance, can be at the very first time accurate errorless warning.
The utility model provides a single-band antenna for smoke alarm, single-band antenna pastes in alarm shell inner wall, single-band antenna includes coaxial line, place and presents a little, the coaxial line includes first coaxial line and second coaxial line, the place includes first place and second place, first place sets up the one end at first coaxial line, the mainboard connection in one end and the alarm of first place is kept away from to first coaxial line, the second place sets up the one end at the second coaxial line, the one end that the second place was kept away from to the second coaxial line is connected with the bee calling organ in the alarm, present a little and be connected with first place.
In the above scheme, the single-band antenna is made of FPC.
In the above scheme, the diameter of the second coaxial line is 20 mm.
The utility model has the advantages and the beneficial effects that: the utility model provides a single-frequency band antenna for smoke alarm adopts FPC and adds the coaxial line form, and this antenna is not only sensitivity extremely strong, and transmission TRP performance is also very high moreover, very big improvement the alarm receive with the transmitting performance, can be at the very first time accurate warning.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a first coaxial line 2, a second coaxial line 3, a first location 4, a second location 5, a feed point
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the utility model relates to a single-frequency band antenna for smoke alarm, which is made of FPC and is adhered to the inner wall of the shell of the alarm, the FPC antenna needs to be painted and gilded; the single-frequency-band FPC antenna comprises a coaxial line, a place and a feed point, the coaxial line comprises a first coaxial line 1 and a second coaxial line 2, the place comprises a first place 3 and a second place 4, the first place 3 is arranged at one end of the first coaxial line 1, one end, away from the first place 3, of the first coaxial line 1 is connected with a mainboard in an alarm, the second place 4 is arranged at one end of the second coaxial line 2, one end, away from the second place 4, of the second coaxial line 2 is connected with a buzzer in the alarm, and the feed point 5 is connected with the first place 3.
The FPC antenna is connected with a main board in the alarm by using a first coaxial line 1, one end of the first coaxial line 1 is welded at a gold-plated position of the FPC antenna, a core wire and the ground are welded in a distinguishing way, and the other end of the first coaxial line 1 is buckled on the main board of the alarm; in order to solve the problem of the interference of the antenna area and the buzzer in the alarm, a second coaxial wire 2 with the diameter of 20mm is adopted to connect the ground of the FPC antenna with the ground on the buzzer.
The utility model has the advantages and beneficial effect: by adopting the FPC and coaxial line form, the antenna has extremely strong sensitivity and very high TRP emission performance, greatly improves the receiving and emitting performances of the alarm, and can accurately give an alarm in the first time.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a single-band antenna for smoke alarm, a serial communication port, the single-band antenna pastes in alarm shell inner wall, the single-band antenna includes coaxial line, place and feed point, the coaxial line includes first coaxial line and second coaxial line, the place includes first place and second place, first place sets up the one end at first coaxial line, the mainboard connection in one end and the alarm of first place is kept away from to first coaxial line, the second place sets up the one end at the second coaxial line, the one end that the second place was kept away from to the second coaxial line is connected with the bee calling organ in the alarm, the feed point is connected with first place.
2. A single band antenna for a smoke alarm according to claim 1 wherein said single band antenna is FPC.
3. A single-band antenna for a smoke alarm according to claim 1, wherein said second coaxial line is 20mm in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593798.3U CN209747716U (en) | 2019-04-28 | 2019-04-28 | Single-frequency band antenna for smoke alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920593798.3U CN209747716U (en) | 2019-04-28 | 2019-04-28 | Single-frequency band antenna for smoke alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209747716U true CN209747716U (en) | 2019-12-06 |
Family
ID=68722144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920593798.3U Active CN209747716U (en) | 2019-04-28 | 2019-04-28 | Single-frequency band antenna for smoke alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209747716U (en) |
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2019
- 2019-04-28 CN CN201920593798.3U patent/CN209747716U/en active Active
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