CN216791443U - Direct temperature measurement early warning device applied to power line for air switch - Google Patents
Direct temperature measurement early warning device applied to power line for air switch Download PDFInfo
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- CN216791443U CN216791443U CN202220540729.8U CN202220540729U CN216791443U CN 216791443 U CN216791443 U CN 216791443U CN 202220540729 U CN202220540729 U CN 202220540729U CN 216791443 U CN216791443 U CN 216791443U
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- early warning
- warning device
- temperature sensor
- power line
- air switch
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Abstract
The utility model discloses a direct temperature measurement early warning device applied to an air switch power line, and mainly relates to a power line early warning device. The temperature sensor comprises a shell, a temperature sensor and a PCB; the PCB is arranged in the shell, and the temperature sensor is arranged on the PCB; the temperature sensor is arranged at the threading hole, and the temperature measuring contact of the temperature sensor extends out of the surface area of the threading hole. And a pressing sheet is arranged on the shell above the threading hole. The utility model has the beneficial effects that: the temperature measuring device is fixed at the top of the air switch through the pressing sheet, and the temperature measuring contact on the surface of the temperature sensor is tightly attached to the surface of the to-be-measured electric circuit, so that the surface temperature of the electric circuit can be truly, accurately and directly measured in real time, and the inaccurate temperature measurement of the existing early warning device is avoided.
Description
Technical Field
The utility model relates to a power line early warning device, in particular to a direct temperature measurement early warning device applied to an air switch power line.
Background
In the field of safety early warning of power lines, current and temperature detection are carried out on the power lines, in the measurement of temperature parameters, the existing power line early warning device for air switch adopts the mode of fixing sheet heat conduction, heat conduction silica gel is smeared in fixing sheet and thermistor, the line temperature of the power line is conducted to the thermistor through the fixing sheet and the heat conduction silica gel, and then is collected by a single chip microcomputer. However, because the contact area between the power line and the fixing sheet is small, the fixing sheet and the heat-conducting silica gel cannot effectively conduct all heat, and even play a role in heat dissipation in the process of conducting the line temperature. The early warning device cannot timely and accurately measure the temperature of the power line, and cannot play a role in early warning; in case of danger, irreparable damage will be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a direct temperature measurement early warning device applied to an electric circuit for an air switch, which is fixed at the top of the air switch through a pressing sheet, and a temperature measurement contact on the surface of a temperature sensor is tightly attached to the surface of the electric circuit to be measured, so that the surface temperature of the electric circuit can be actually, accurately and directly measured in real time, and the inaccurate temperature measurement of the existing early warning device is avoided.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a direct temperature measurement early warning device applied to an air switch power line comprises a shell, a temperature sensor and a PCB (printed Circuit Board); the PCB is arranged in the shell, and the temperature sensor is arranged on the PCB;
the temperature sensor is arranged at the threading hole, and the temperature measuring contact of the temperature sensor extends out of the surface area of the threading hole.
And a pressing sheet is arranged on the shell above the threading hole.
The shell is provided with heat dissipation holes.
And a miniature closed mutual inductor is arranged on the PCB at the threading hole.
And a mutual inductor bearing ring is arranged on the shell.
Compared with the prior art, the utility model has the beneficial effects that:
as shown in the attached drawing 4 of the specification, when the device is used, the tail end of a line to be detected penetrates through the threading hole, the pressing sheet and the tail end of the line to be detected are inserted into the terminal wiring hole at the top of the empty opening part, the terminal screw at the front side of the empty opening part is screwed up by the screwdriver, the tail end of the terminal screw extrudes and compacts the tail end of the line to be detected and tightly adheres to the side part of the pressing sheet, the device is conveniently fixed on the empty opening part (a fixing part does not need to be additionally arranged) through the pressing sheet, and the stable contact between the surface of the line to be detected and a temperature measuring contact of the temperature sensor is guaranteed after the tail end of the line to be detected. And be equipped with the miniature closed mutual-inductor that is used for the electric quantity to measure on the PCB board, miniature closed mutual-inductor passes through the mutual-inductor and accepts the spacing support of ring, the setting of mutual-inductor acceptance ring has guaranteed that the circuit that awaits measuring is straight not crooked in the casing, further guaranteed that the circuit surface that awaits measuring can stable contact with temperature sensor's temperature measurement contact, can not lead to the contact unstability because of the influence of crooked radian, thereby can be true through temperature sensor, real-time, accurately direct measurement circuit surface temperature, it is inaccurate to have avoided current early warning device temperature measurement.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Figure 2 is an exploded view of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a state diagram of the present invention in use.
Fig. 5 is a schematic diagram of an open architecture.
Reference numerals shown in the drawings:
1. a housing; 2. a temperature sensor; 3. a PCB board; 4. threading holes; 5. tabletting; 6. heat dissipation holes; 7. a miniature closed-end transformer; 8. a mutual inductor bearing ring; 9. a terminal wiring hole; 10. a terminal screw; 11. opening in the air; 12. a tab.
Detailed Description
The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The utility model relates to a direct temperature measurement early warning device applied to an air switch power line, which comprises a main body structure, a temperature sensor 2, a PCB 3 and a temperature sensor, wherein the main body structure comprises a shell 1; the PCB 3 is arranged in the shell 1, the temperature sensor 26 adopts a thermistor, and the temperature sensor 2 is arranged on the PCB 3; be equipped with through wires hole 4 on the casing 1, temperature sensor 2 is located through wires hole 4 department, just temperature sensor 2's temperature measurement contact is visited out in 4 face areas of through wires hole, the 4 axial positions of perpendicular to through wires hole. And a pressing sheet 5 is arranged on the shell 1 above the threading hole 4.
As shown in the attached figure 4, when in use, the tail end of a line to be measured penetrates through a threading hole 4, a pressing sheet 5 and the tail end of the line to be measured are inserted into a terminal wiring hole 9 at the top of an empty opening 11, a terminal screw 10 at the front side of the empty opening 11 is screwed by a screwdriver, the tail end of the terminal screw 10 extrudes and compacts the tail end of the line to be measured and tightly adheres to the side part of the pressing sheet 5, not only the fixing of the device on the empty opening 11 is realized through the pressing sheet 5, but also the stable contact between the surface of the line to be measured and a temperature measuring contact of a temperature sensor 2 is ensured after the tail end of the line to be measured, a micro closed mutual inductor 7 for measuring the electric quantity is arranged on a PCB (printed circuit board) 3, the micro closed mutual inductor 7 is limited and supported through a mutual inductor bearing ring 8, the arrangement of the mutual inductor bearing ring 8 ensures that the line to be measured is not bent in the shell 1, and further ensures that the surface of the line to be measured can be stably contacted with the temperature measuring contact of the temperature sensor 2, the contact instability caused by the influence of the bending radian can be avoided, so that the surface temperature of the circuit can be directly measured in real time and accurately by the temperature sensor 2, and the inaccurate temperature measurement of the existing early warning device is avoided. The mode that adopts stationary blade and heat conduction silica gel conduction line temperature among the current early warning device has been abandoned in this application, has saved the flow of paining heat conduction silica gel among the early warning device before, has reduced manufacturing cost, has ensured the authenticity of data, guarantees that early warning device all plays the early warning effect at every moment.
In order to reduce the influence of external factors on the measurement of the temperature sensor 2, the housing 1 is provided with a heat dissipation hole 6. The threading hole 4 on the top surface of the hollow opening 11 is provided with the lug 12, and after the device is arranged on the top surface of the hollow opening 11, the self height of the lug 12 can enable a heat dissipation seam to be reserved between the bottom of the device and the top surface of the hollow opening 11, so that heat dissipation is facilitated. A plurality of large-area heat dissipation holes 6 ensure that heat generated by the devices on the PCB 3 during operation is dissipated through the heat dissipation holes 6.
Claims (5)
1. A direct temperature measurement early warning device applied to an air switch power line comprises a shell (1), a temperature sensor (2) and a PCB (printed circuit board) (3); the PCB (3) is arranged in the shell (1), and the temperature sensor (2) is arranged on the PCB (3);
the method is characterized in that:
be equipped with through wires hole (4) on casing (1), temperature sensor (2) are located through wires hole (4) department just the temperature measurement contact of temperature sensor (2) is visited in through wires hole (4) face intra-area.
2. The direct temperature measurement early warning device applied to the air switch power line according to claim 1, characterized in that: and a pressing sheet (5) is arranged on the shell (1) above the threading hole (4).
3. The direct temperature measurement early warning device applied to the air switch power line according to claim 1, characterized in that: the shell (1) is provided with heat dissipation holes (6).
4. The direct temperature measurement early warning device applied to the air switch power line according to claim 1, characterized in that: and a miniature closed mutual inductor (7) is arranged on the PCB (3) at the threading hole (4).
5. The direct temperature measurement early warning device applied to the air switch power line according to claim 4, characterized in that: and a mutual inductor bearing ring (8) is arranged on the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220540729.8U CN216791443U (en) | 2022-03-11 | 2022-03-11 | Direct temperature measurement early warning device applied to power line for air switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220540729.8U CN216791443U (en) | 2022-03-11 | 2022-03-11 | Direct temperature measurement early warning device applied to power line for air switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216791443U true CN216791443U (en) | 2022-06-21 |
Family
ID=82000568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220540729.8U Active CN216791443U (en) | 2022-03-11 | 2022-03-11 | Direct temperature measurement early warning device applied to power line for air switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216791443U (en) |
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2022
- 2022-03-11 CN CN202220540729.8U patent/CN216791443U/en active Active
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