CN216899335U - Passive temperature measuring device - Google Patents
Passive temperature measuring device Download PDFInfo
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- CN216899335U CN216899335U CN202122916954.5U CN202122916954U CN216899335U CN 216899335 U CN216899335 U CN 216899335U CN 202122916954 U CN202122916954 U CN 202122916954U CN 216899335 U CN216899335 U CN 216899335U
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Abstract
The utility model provides a passive temperature measuring device, belonging to the field of electrical equipment manufacturing; the utility model includes: a housing, a chip and an antenna; the chip is an RFID temperature measuring chip; a heat-conducting substrate is arranged in the shell, and the chip is fixedly arranged on the heat-conducting substrate; the antenna is connected with the chip and is arranged in the shell; a buckle is arranged on one side of the shell and protrudes out of the shell; the buckle is perpendicular to the shell. According to the utility model, the passive wireless RFID chip is adopted to directly detect the temperature of the quincunx high-voltage contact in the power distribution cabinet, and the passive wireless RFID chip can be conveniently fixed in a gap of the quincunx contact through a buckle, so that the passive wireless RFID chip is convenient to install and can be conveniently detached and monitored.
Description
Technical Field
The utility model relates to a power distribution cabinet manufacturing technology, in particular to a passive temperature measuring device, and belongs to the technical field of electrical equipment manufacturing.
Background
The power distribution cabinet is common important power equipment, and the maintenance of normal and stable operation of the power distribution cabinet plays a crucial role in safety production. The main maintenance part of the power distribution cabinet is a contact part, and the temperature of the contact can be abnormally changed when the contact is in abnormal conditions such as looseness, elastic aging, unclean contact surface and the like; to prevent the electrical equipment from being damaged, it is necessary to warn of the risk of fire on the cable, and monitoring the temperature change of the cable joint is an effective method.
In the temperature monitoring technology in the prior art, an RFID temperature measurement label is additionally arranged at a cable joint, temperature data of the cable joint is transmitted to an RFID reader-writer through the RFID temperature measurement label, and the RFID reader-writer sends the received temperature data to a background server, so that the temperature change of the cable joint is monitored. However, the RFID temperature measurement tags on the market are generally of a sheet structure, and are difficult to be conveniently fixed at the end of the quincunx contact in the installation process, inconvenient to position, install and operate, difficult to quickly install and adjust, and easy to drop in the use process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel passive temperature measuring device which is conveniently arranged at the end part of a quincunx contact by adopting a buckle, so that the technical problem that a temperature measuring chip in a power distribution cabinet is not changed in installation in the prior art is solved.
The passive temperature measuring device of the embodiment of the utility model comprises: a housing, a chip and an antenna; the chip is an RFID temperature measurement chip;
a heat-conducting substrate is arranged in the shell, and the chip is fixedly arranged on the heat-conducting substrate; the antenna is connected with the chip and is arranged in the shell;
a buckle is arranged on one side of the shell and protrudes out of the shell; the buckle is perpendicular to the shell.
The passive temperature measuring device, wherein the shell is a square structure; the buckle is positioned on one side of the square structure and positioned on the edge of the square structure.
The passive temperature measuring device is characterized in that the antenna is parallel to the heat conducting substrate and is positioned in the shell;
the antenna and the buckle are respectively positioned on two sides of the heat conducting substrate.
The passive temperature measuring device as described above, wherein the heat conducting substrate is a copper substrate.
The passive temperature measuring device as described above, wherein the housing is an insulating protective housing.
The passive temperature measuring device is characterized in that the antenna is an ultrahigh frequency (UHF) electrically small antenna, and an LC matching circuit is arranged between the antenna and the chip.
The passive temperature measuring device as described above, wherein the fastener is two plastic sheets that can be close to each other; one end of each of the two plastic sheets is fixed on the shell, and the other end of each of the two plastic sheets is provided with an opening.
The passive temperature measuring device is characterized in that one end of the shell is provided with a limiting piece, and the limiting piece is perpendicular to the buckle; the limiting piece is of a semicircular structure.
According to the utility model, the passive wireless RFID chip is adopted to directly detect the temperature of the quincunx high-voltage contact in the power distribution cabinet, and the passive wireless RFID chip can be conveniently fixed in a gap of the quincunx contact through a buckle, so that the passive wireless RFID chip is convenient to install and can be conveniently detached and monitored.
Drawings
FIG. 1 is a schematic structural diagram of a passive temperature measuring device according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a passive temperature measuring device according to an embodiment of the present invention;
FIG. 3 is a schematic top view of the structure of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line D-D of FIG. 2;
fig. 5 is an installation diagram of a passive temperature measuring device according to an embodiment of the utility model.
Detailed Description
The passive temperature measuring device of the present invention can be made of the following materials, and is not limited to the following materials, for example: plastics, copper, antenna, data interface, switch board, passive RFID chip, reader, data transceiver antenna etc..
FIG. 1 is a schematic structural diagram of a passive temperature measuring device according to an embodiment of the present invention; and refer to fig. 2.
The passive temperature measuring device of the embodiment of the utility model comprises: a housing 1, a chip 4 and an antenna 5; the chip 4 is an RFID temperature measuring chip; the working principle of online temperature measurement of the RFID temperature measurement chip is as follows: if the RFID temperature measurement chip arranged on the contact of the power distribution cabinet receives a special radio frequency signal sent by the reader, the temperature of the heat source can be measured by means of the energy obtained by the induced current, the product information and the temperature measurement information stored in the chip are sent out, and the reader reads the information and decodes the information and sends the information to the temperature data collector for relevant data processing, displaying and recording.
The RFID temperature measurement chip has long service life and is free from maintenance: when the collector does not send a command, the RFID temperature measurement chip does not work, does not need maintenance in daily life, and can have the same service life as the measured electrical equipment. The RFID temperature measuring chip is suitable for various outdoor environments, adopts a totally-enclosed design, is suitable for various outdoor climatic environments, adopts a homogeneous medium, and has a protection grade reaching IP 68.
A heat conducting substrate 3 is arranged in the shell 1, and the chip 4 is fixedly arranged on the heat conducting substrate 3; the antenna 5 is connected with the chip 4 and is arranged in the shell 1; typically, the housing 1 is an insulating material.
Typically, the heat conductive substrate 3 is a copper substrate. The shell 1 is an insulating protective shell.
Further, the antenna 5 is an Ultra High Frequency (UHF) electrically small antenna, and an LC matching circuit is arranged between the antenna 5 and the chip 4.
A buckle 2 is arranged on one side of the shell 1, and the buckle 2 protrudes out of the shell 1; the buckle 1 is perpendicular to the housing 1.
Further, as shown in fig. 2 and 4, the housing 1 has a square block structure; the buckle 2 is located on one side of the square structure and located at the edge of the square structure.
In the utility model, the antenna 5 and the heat conducting substrate 3 are arranged in parallel and are both positioned in the shell 1; as shown in fig. 3, the antenna 5 and the clip 2 are respectively located on two sides of the heat conducting substrate 3.
In the actual use process, the heat conducting substrate 3 is in contact with the contact to obtain the temperature change on the contact, so that the temperature change is transmitted to the chip 4, and finally data is sent through the antenna 5.
In the passive temperature measuring device of this embodiment, as shown in fig. 5, the fastener 2 is two plastic sheets that can be close to each other; one end of each of the two plastic sheets is fixed on the shell 1, and the other end of each of the two plastic sheets is provided with an opening. The end with the opening can be conveniently inserted into the gap of the tulip contact 9.
In the passive temperature measuring device of the present embodiment, as shown in fig. 1 and 4, one end of the housing 1 is provided with a limiting piece 10, and the limiting piece 10 is perpendicular to the buckle 2; the limiting sheet 10 is of a semicircular structure. The limiting sheet 10 and the heat conducting substrate 3 are not located on the same plane, and the limiting sheet 10 and the buckle 2 are located on two sides of the heat conducting substrate respectively.
According to the utility model, the passive wireless RFID chip is adopted to directly detect the temperature of the quincunx high-voltage contact in the power distribution cabinet, and the passive wireless RFID chip can be conveniently fixed in a gap of the quincunx contact through a buckle, so that the passive wireless RFID chip is convenient to install and can be conveniently detached and monitored.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. Through the above description of the embodiments, those skilled in the art will clearly understand that the above embodiment method can be implemented by some modifications plus the necessary general technical overlap; of course, the method can also be realized by simplifying some important technical features in the upper level. Based on such understanding, the technical solution of the present invention essentially or contributing to the prior art is: overall function and construction, and to cooperate with the structure described in the various embodiments of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A passive temperature measurement device, comprising: a housing, a chip and an antenna; the chip is an RFID temperature measurement chip;
a heat-conducting substrate is arranged in the shell, and the chip is fixedly arranged on the heat-conducting substrate; the antenna is connected with the chip and is arranged in the shell;
a buckle is arranged on one side of the shell and protrudes out of the shell; the buckle is perpendicular to the shell;
the shell is of a square structure; the buckle is positioned on one side of the square structure and positioned on the edge of the square structure;
the antenna and the heat conducting substrate are arranged in parallel and are both positioned in the shell;
the antenna and the buckle are respectively positioned on two sides of the heat conducting substrate;
the buckle is two plastic sheets which can be close to each other; one end of each of the two plastic sheets is fixed on the shell, and the other end of each of the two plastic sheets is provided with an opening;
one end of the shell is provided with a limiting piece, and the limiting piece is perpendicular to the buckle; the limiting piece is of a semicircular structure.
2. The passive thermometric device of claim 1, wherein the thermally conductive substrate is a copper substrate.
3. The passive thermometry device of claim 1, wherein the housing is an insulating protective shell.
4. The passive temperature measurement device of claim 1, wherein the antenna is an Ultra High Frequency (UHF) electrically small antenna, and an LC matching circuit is arranged between the antenna and the chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122916954.5U CN216899335U (en) | 2021-11-25 | 2021-11-25 | Passive temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122916954.5U CN216899335U (en) | 2021-11-25 | 2021-11-25 | Passive temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216899335U true CN216899335U (en) | 2022-07-05 |
Family
ID=82203010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122916954.5U Active CN216899335U (en) | 2021-11-25 | 2021-11-25 | Passive temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216899335U (en) |
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2021
- 2021-11-25 CN CN202122916954.5U patent/CN216899335U/en active Active
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