CN216770809U - Grenade-shaped antenna of passive wireless temperature sensor at lap joint of large-size cable busbar - Google Patents
Grenade-shaped antenna of passive wireless temperature sensor at lap joint of large-size cable busbar Download PDFInfo
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- CN216770809U CN216770809U CN202122987465.9U CN202122987465U CN216770809U CN 216770809 U CN216770809 U CN 216770809U CN 202122987465 U CN202122987465 U CN 202122987465U CN 216770809 U CN216770809 U CN 216770809U
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Abstract
The invention provides a grenade-shaped antenna of a passive wireless temperature sensor at the lap joint of a large-size cable busbar, which comprises: the temperature sensor comprises a metal radiation arm, a compression joint feeder line, a temperature sensing chip, a fixed metal disc and a fixed hole; the metal radiation arm is an arc-shaped metal arm, so that excellent antenna radiation performance can be realized; the crimping feeder line is a signal channel between the temperature sensing chip and the whole grenade-shaped antenna; the temperature sensing chip is a sound meter temperature sensing device adopting a differential technology, and the integral torpedo-shaped temperature sensor is fixed at the lap joint of the cable busbar through a fixing metal disc and a fixing hole by screws. The antenna provided by the invention is convenient to process, has a square and simple integral appearance, and can transmit and receive the reading equipment inquiry signal and the sensing chip temperature return signal with enough power by using electromagnetic waves.
Description
Technical Field
The invention relates to the field of sensor antenna design, in particular to a grenade-shaped antenna of a passive wireless temperature sensor at a large-size cable busbar lap joint.
Background
In a power distribution system, in addition to monitoring current and performing overload protection on cables, transformers, motors and buses, temperature monitoring and protection must be performed on joints and splicing parts of cable buses, automatic switches, fuses, transformers, bus ducts and the like, so that accidents caused by overtemperature can be effectively prevented, and therefore, temperature detection on the cable bus bar splicing part is particularly important.
The existing sensor antenna in the market has various shapes, different performances, narrower bandwidth and other problems.
Disclosure of Invention
The invention aims to provide a grenade-shaped antenna of a passive wireless temperature sensor at a large-size cable busbar lap joint. The requirement for detecting the temperature of the cable busbar lap joint is met.
The invention adopts the following technical scheme:
a passive wireless temperature sensor grenade antenna for a large-size cable busbar lap joint, comprising: the temperature sensing device comprises a metal radiation arm, a crimping feeder, a temperature sensing chip and a fixed metal disc; wherein:
the metal radiation arm is an arc-shaped metal arm, one end of the metal radiation arm is connected with the fixed metal disc, and the other end of the metal radiation arm is a free end;
the compression joint feeder line is close to the joint of the metal radiation arm and the fixed metal disc and is connected between the metal radiation arm and the fixed metal disc;
the temperature sensing chip is arranged on the crimping feeder line;
the fixed metal disc is a base used for fixing the whole grenade-shaped sensor at the overlapping position of the cable busbar.
Further, the temperature sensing chip is a sound surface temperature sensing device adopting a differential technology.
Further, a plurality of fixing holes are formed in the fixing metal plate for fixing.
Further, the fixed metal disc is a brass disc having a thickness.
Furthermore, the circle of the metal radiation arm is concentric with the fixed metal disc at the circle center, and the radian of the metal radiation arm is larger than 30 degrees and smaller than 180 degrees.
Further, the diameter of the circle on which the metal radiating arm is located is larger than that of the fixed metal disc, and the distance from the edge of the fixed metal disc is 1/2 times the radius of the fixed metal disc.
Further, the metal radiation arm is equipotential with the fixed metal disc.
Compared with the prior art, the invention has the following beneficial effects:
1. the grenade-shaped antenna applied to the lap joint of the large-size cable busbar provided by the invention has the advantages of excellent antenna performance, convenience in processing and regular and concise overall appearance.
2. The design of the grenade-shaped antenna of the passive wireless temperature sensor applied to the lap joint of the large-size cable bus has stronger pertinence to the temperature detection of the cable bus, and can send and receive electromagnetic wave signals of reading and collecting equipment with enough power.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of an overall structure of an antenna provided by the present invention.
Fig. 2 is a schematic diagram of an installation implementation in an embodiment of the invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1-2, the grenade-shaped antenna of the passive wireless temperature sensor for the large-size cable busbar lap joint provided by the invention comprises: the temperature sensor comprises a metal radiation arm 1, a day crimping feeder 2, a temperature sensing chip 3, a fixed metal disc 4 and a fixed hole 5; the metal radiation arm is an arc-shaped metal arm, one end of the metal radiation arm is connected with the fixed metal disc, and the other end of the metal radiation arm is a free end; the compression joint feeder line is close to the joint of the metal radiation arm and the fixed metal disc and is connected between the metal radiation arm and the fixed metal disc; the temperature sensing chip is arranged on the crimping feeder line; the fixed metal disc is a base used for fixing the whole grenade-shaped sensor at the overlapping position of the cable busbar.
The metal radiation arm 4 and the fixed metal disc 4 are made of brass materials, temperature conduction is facilitated, and the metal radiation arm 1 is an arc-shaped metal arm and is a radiation body of an antenna. The metal radiation arm 1 adopts a certain fillet design, and the discharge risk under the condition of high voltage and large current is eliminated.
The metal radiation arm 1 adopts a certain fillet design, and the discharge risk under the condition of high voltage and large current is eliminated.
The crimping feeder 2 is a copper wire netting and has certain toughness and good signal passing performance.
Be certain thickness's brass discoid with fixed metal disc 4, play the base purpose of whole grenade shape antenna, through the laminating of the female overlap joint department of the cable of fixed orifices 5 with waiting to examine the temperature measurement. And the fixing hole 5 is attached to the lapping position of the cable busbar to be tested for measuring temperature.
The temperature sensing chip 3 is a sound surface temperature sensing device adopting a differential technology and adopts a passive wireless technology.
Play the base purpose of whole torpedo antenna, through the female overlap joint department laminating of arranging of fixed orifices 5 and the cable of waiting to examine the temperature measurement.
Specifically, in an embodiment, as shown in fig. 2, the grenade-shaped antenna of the passive wireless temperature sensor applied to the lap joint of the large-size cable busbar is connected with the data collector in a wireless manner, receives the query signal of the collector, and sends the electromagnetic wave signal with the temperature data returned by the temperature sensing chip to the collector in a wireless manner, so as to be analyzed.
The grenade-shaped antenna applied to the lap joint of the large-size cable busbar provided by the invention has the advantages of excellent antenna performance, convenience in processing, small size and simple and regular overall appearance, and can send and receive electromagnetic wave signals of reading and collecting equipment with sufficient power.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (8)
1. The utility model provides a female passive wireless temperature sensor grenade shape antenna of arranging overlap joint of jumbo size cable which characterized in that includes: the temperature sensor comprises a metal radiation arm (1), a crimping feeder (2), a temperature sensing chip (3) and a fixed metal disc (4); wherein:
the metal radiation arm (1) is an arc-shaped metal arm, one end of the metal radiation arm is connected with the fixed metal disc (4), and the other end of the metal radiation arm is a free end;
the crimping feeder (2) is close to the joint of the metal radiation arm (1) and the fixed metal disc (4) and is connected between the metal radiation arm (1) and the fixed metal disc (4);
the temperature sensing chip (3) is arranged on the crimping feeder (2);
the fixed metal disc (4) is a base used for fixing the whole grenade-shaped sensor at the overlapping position of the cable busbar.
2. An antenna according to claim 1, characterized in that said temperature sensing chip (3) is a sonometer temperature sensing device using differential technology.
3. An antenna according to claim 1, characterized in that a plurality of fixing holes (5) are provided in said fixing metal plate (4) for fixing.
4. An antenna according to claim 1, characterized in that said fixed metal disc (4) is a brass discoid with a thickness.
5. The antenna according to claim 1, characterized in that the circle of the metallic radiating arm (1) is concentric with the fixed metallic disc (4) at the center, and the radian of the metallic radiating arm (1) is greater than 30 ° and less than 180 °.
6. An antenna according to claim 5, characterized in that the diameter of the circle on which the metallic radiating arm (1) is located is larger than the diameter of the fixed metallic disc (4) and is located at a distance 1/2 of the radius of the fixed metallic disc (4) from the edge of the fixed metallic disc (4).
7. The antenna according to claim 1, characterized in that said metallic radiating arm (1) is equipotential with respect to the fixed metallic disc (4).
8. An antenna according to claim 1, characterized in that the crimped feed line (2) is a copper wire braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987465.9U CN216770809U (en) | 2021-12-01 | 2021-12-01 | Grenade-shaped antenna of passive wireless temperature sensor at lap joint of large-size cable busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122987465.9U CN216770809U (en) | 2021-12-01 | 2021-12-01 | Grenade-shaped antenna of passive wireless temperature sensor at lap joint of large-size cable busbar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216770809U true CN216770809U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122987465.9U Active CN216770809U (en) | 2021-12-01 | 2021-12-01 | Grenade-shaped antenna of passive wireless temperature sensor at lap joint of large-size cable busbar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216770809U (en) |
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2021
- 2021-12-01 CN CN202122987465.9U patent/CN216770809U/en active Active
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