CN217358785U - Annular temperature difference self-energy-taking type temperature sensor - Google Patents
Annular temperature difference self-energy-taking type temperature sensor Download PDFInfo
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- CN217358785U CN217358785U CN202122934868.7U CN202122934868U CN217358785U CN 217358785 U CN217358785 U CN 217358785U CN 202122934868 U CN202122934868 U CN 202122934868U CN 217358785 U CN217358785 U CN 217358785U
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Abstract
An annular temperature difference self-energy-taking type temperature sensor, comprising: the temperature difference acquisition module comprises a closed shell in an annular structure and at least one temperature difference acquisition module; the at least one temperature difference acquisition module is arranged on the radial outer side surface of the closed shell; the two axial ends of the closed shell are provided with connecting structures used for being connected with the contact hardware fittings; also includes at least one sensor function unit; the at least one sensor functional unit is arranged on the axial outer side surface of the closed shell and is electrically connected with the temperature difference acquisition module. The device provided by the utility model reach and simplify the temperature sensor design, improve the temperature monitoring frequency, optimize the purpose of monitoring effect.
Description
Technical Field
The utility model relates to a technical field of power transmission and transformation engineering gold utensil, concretely relates to annular difference in temperature is from getting ability formula temperature sensor.
Background
With the rapid development of national economy, the power demand of China continuously rises, the scale of a power grid is rapidly enlarged, and particularly with the construction and operation of extra-high voltage projects, the power grid of China becomes an alternating-current and direct-current hybrid power grid with the most complex structure and the largest scale in the world.
The electric connection is one of the important components of power transmission and transformation engineering, is an indispensable and abundant link in power electronic equipment and a power grid system, and a large number of industrial electric appliances cannot eliminate large and heavy electric appliance contacts so far. The contact hardware shoulder has key tasks of connecting various electric devices of a power grid and transmitting mechanical load, and is very wide in application. The power transmission and transformation project contact hardware fitting mainly comprises a lead strain clamp drainage clamp, various drainage clamps in a transformer substation, a current-carrying hardware fitting and the like. The contact hardware fitting generally adopts a connection mode of fastening by using bolts after lap joint, the connection quality is an important factor influencing the safety coefficient of a system and the average non-failure working time, and the operation state plays a very important role in the safe and stable operation of the project and directly influences the safe and stable operation of the power transmission and transformation project. Since the electric power grid is put into operation, the phenomenon of hardware overheating caused by poor connection quality of the contact hardware is increasingly prominent, and particularly under conditions of high power load and high-temperature environment in summer, the overheating fault of the contact hardware is more prone to occur, and serious influence is caused on power transmission reliability. Although some chip-level temperature monitoring devices have been adopted to the overheated trouble problem of contact gold utensil in the engineering, in the use of current chip-level temperature monitoring device, there is the problem that can not full life cycle effectively contact the contact gold utensil to cause the temperature monitoring frequency to hang down, and then cause the monitoring effect poor, can not satisfy the monitoring demand.
SUMMERY OF THE UTILITY MODEL
In order to solve current temperature monitoring device use, the temperature monitoring frequency is low excessively, the poor problem of monitoring effect, the utility model provides an annular difference in temperature is from getting ability formula temperature sensor, include: the temperature difference acquisition module comprises a closed shell in an annular structure and at least one temperature difference acquisition module;
the at least one temperature difference acquisition module is arranged on the radial outer side surface of the closed shell;
the two axial ends of the closed shell are provided with connecting structures used for being connected with the contact hardware fittings;
also includes at least one sensor function unit;
the at least one sensor functional unit is arranged on the axial outer side surface of the closed shell and is electrically connected with the temperature difference acquisition module.
Preferably, one end of the outer side of the closed shell is provided with mounting grooves with the same number as the sensor functional units;
the sensor function unit is installed in the installation groove.
Preferably, the number of the mounting grooves is multiple;
the plurality of mounting grooves are arranged at equal angles along the outer peripheral side of the enclosure shell, and the plurality of sensor function units are respectively mounted in the mounting grooves.
Preferably, the sensor function unit includes a power generation unit, a wireless transmission unit, and a temperature sensor unit electrically connected to each other.
Preferably, the power generation unit includes a thermoelectric generation sheet.
Preferably, the wireless transmission unit includes a transparent transmission module and an antenna.
Preferably, the temperature sensor unit includes a thermistor analog-to-digital converter.
Preferably, the device also comprises an acquisition module cover plate in an annular structure;
the acquisition module cover plate is sleeved in the middle of the outer side of the closed shell;
the temperature difference acquisition module is arranged between the temperature difference module cover plate and the closed shell.
Preferably, the device also comprises an acquisition module cover plate in an annular structure;
the acquisition module cover plate is provided with an annular groove matched with the temperature difference acquisition module;
the temperature difference acquisition module is installed in the annular groove.
Preferably, the middle part of the closed shell is a regular polygon;
an inner hole for accommodating the temperature difference acquisition module is formed in the acquisition module cover plate;
the acquisition module cover plate is matched with the closed shell, and the inner wall of the acquisition module cover plate is abutted to the outer wall of the closed shell.
Preferably, the device further comprises a heat conduction silica gel sheet arranged in the closed shell.
Preferably, the axial length of the heat-conducting silica gel sheet is smaller than that of the sealing shell;
the connecting structure comprises a threaded hole;
the threaded hole, the heat-conducting silica gel sheet and the threaded hole are sequentially arranged along the axis direction of the closed shell.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an annular difference in temperature is from getting can formula temperature sensor, include: the temperature difference acquisition module comprises a closed shell in an annular structure and at least one temperature difference acquisition module; the at least one temperature difference acquisition module is arranged on the radial outer side surface of the closed shell; the two axial ends of the closed shell are provided with connecting structures used for being connected with the contact hardware fittings; also includes at least one sensor function unit; the at least one sensor functional unit is arranged on the axial outer side surface of the closed shell and is electrically connected with the temperature difference acquisition module. The device provided by the utility model only acquires assembling of module, enclosure and sensor functional unit through the difference in temperature, reaches and simplifies the temperature sensor design, improves temperature monitoring frequency, optimizes the purpose of monitoring effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the annular temperature difference self-energy-taking type temperature sensor of the present invention;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
fig. 3 is the utility model discloses an annular difference in temperature is from getting can formula temperature sensor's mounting structure sketch map.
Wherein, 1, a closed shell; 2. acquiring a module cover plate; 3. a temperature difference acquisition module; 4. a sensor function unit.
Detailed Description
The utility model discloses an annular difference in temperature is from getting ability formula temperature sensor, the device only acquire assembling of module, enclosure and sensor functional unit through the difference in temperature, reach and simplify the temperature sensor design, improve temperature monitoring frequency, optimize the purpose of monitoring effect.
Examples
An annular temperature difference self-energy-taking type temperature sensor, as shown in fig. 1 and 2, comprises: a containment vessel 1 in the form of an annular structure and at least one temperature difference acquisition module 3. The at least one temperature difference acquisition module 3 is arranged on the radial outer side surface of the closed shell 1, and the two axial ends of the closed shell 1 are provided with connecting structures used for being connected with contact hardware fittings. The annular differential temperature self-powered temperature sensor further comprises at least one sensor functional unit 4. At least one sensor function unit 4 is arranged on the axial outer side surface of the closed shell 1 and is electrically connected with the temperature difference acquisition module 3. In order to facilitate heat conduction and heat convection, the enclosure 1 is made of a metal material having good heat conductivity.
The shape of the closed shell 1 adopts a cylindrical structure, one end of the closed shell 1 is provided with mounting grooves with the same number as 4 sensor functional units, and the mounting grooves are arranged on the outer side surface of the closed shell 1.
The mounting groove sets up to a plurality ofly. The mounting grooves are arranged at equal angles around the central axis of the enclosure shell 1, and the sensor function units 4 are respectively mounted in the mounting grooves. The restriction is not done to the shape of mounting groove, with sensor function unit 4 looks adaptation can, square groove is chooseed for use to the mounting groove in this embodiment, and the side towards the mounting groove bottom is square structure when sensor function unit 4 installs, and sensor function unit 4 installs in the mounting groove. The number of the sensor functional units 4 is not limited, and the functions required to be realized in actual engineering can be realized, and the embodiment selects four mounting grooves and the sensor functional units 4, and the four mounting grooves are uniformly distributed around the central axis of the sealed shell 1 at equal angles.
The sensor function unit 4 includes a power generation unit, a wireless transmission unit, and a temperature sensor unit electrically connected to each other.
The power generation unit comprises a thermoelectric power generation sheet. The power generation unit is a thermoelectric power generation plate made of bismuth telluride thermoelectric nano materials, and the thermoelectric power generation performance reaches the optimal state through physical heat dissipation. The power generation unit is a technology for converting heat energy into electric energy by utilizing the plug effect of two connected electric conductors or semiconductors. The circuit is composed of two different types of semiconductors, and when one end of the device is in a high temperature state and the other end is in a low temperature state, electromotive force is generated in the circuit. When the thermoelectric conversion module is used, a plurality of PN junctions are connected in series to form the thermoelectric conversion module. The thermoelectric self-energy-taking power generation module adopts a BiTe-based thermoelectric material and a flexible packaging process, the service life of a power generation device exceeds 10 years, the conversion efficiency of a thermoelectric power generation system exceeds 7 percent, and the unit area power generation power reaches 1-1.2KW/m 2.
The wireless transmission unit comprises a transparent transmission module and an antenna. The transparent transmission module is in a CC1310-TC-008 model and is used for encoding and transcoding wireless information. The transparent transmission module is externally connected with an antenna and used for transmitting signals of the wireless transmission unit.
The temperature sensor unit comprises a thermistor analog-to-digital converter, in particular a MAX31865 thermistor analog-to-digital converter, for optimizing the platinum resistor temperature detector. The over-voltage protection of up to 45V provides configurable platinum resistor temperature detector and cable open circuit and short circuit condition detection. The 15-bit ADC nominal temperature resolution is 0.03125 ℃, and the 15-bit ADC nominal temperature resolution changes along with the nonlinearity of a platinum resistance temperature detector; under the whole working condition, the total precision is kept at 0.5 ℃ and is 0.05 percent of full range.
The annular temperature difference self-energy-taking type temperature sensor further comprises an acquisition module cover plate 2 in an annular structure. The acquisition module cover plate 2 is sleeved in the middle of the outer side of the closed shell 1, and the temperature difference acquisition module 3 is arranged between the temperature difference module cover plate and the closed shell 1. In order to facilitate heat conduction and heat convection, the acquisition module cover plate 2 is made of a metal material with good heat conductivity.
The annular temperature difference self-energy-taking type temperature sensor further comprises an acquisition module cover plate 2 in an annular structure. Acquire module apron 2 and set up the ring channel with the difference in temperature acquisition module 3 looks adaptation, the difference in temperature acquisition module 3 is installed in the ring channel.
The middle part of the closed shell 1 is set to be a regular polygon, and the number of the sides of the regular polygon is the same as the number of the temperature difference acquisition modules 3. Acquire module apron 2 and be the loop configuration, and offer the hole that is used for holding the difference in temperature acquisition module 3 on it, the number of hole is the same with the number that the difference in temperature acquisition module 3, and the hole is all seted up on the medial surface that acquires module apron 2. The inner hole is matched with the temperature difference acquisition module 3. This implementation selects ten difference in temperature to acquire module 3, and the enclosure 1 middle part is regular decagon, acquires and has seted up ten holes on the module apron 2, and ten hole intercommunications are selected for use to this embodiment, form a complete ring channel. The acquisition module cover plate 2 is matched with the closed shell 1, and the inner wall of the acquisition module cover plate 2 is abutted to the outer wall of the closed shell 1. The temperature difference acquisition module 3 is installed in the annular groove of the acquisition module cover plate 2, the side face, facing the closed shell 1, of the temperature difference acquisition module 3 is abutted to the closed shell 1, and the other side faces of the temperature difference acquisition module 3 are abutted to the acquisition module cover plate 2.
The annular temperature difference self-energy-taking type temperature sensor further comprises a heat-conducting silica gel sheet arranged in the closed shell 1. The axial length of the heat-conducting silica gel sheet is less than that of the sealing shell 1. Annular heat conduction silica gel piece is selected for use to this embodiment, and in heat conduction silica gel piece cover was located the enclosure 1, during the use, annular heat conduction silica gel piece was filled between enclosure 1 and electric wire netting contact gold utensil, improved temperature monitoring frequency, optimized monitoring effect.
The connecting structure comprises threaded holes arranged at two ends of the closed shell 1, the threaded holes, the heat-conducting silica gel sheets and the threaded holes are sequentially arranged along the axis direction of the closed shell 1, and the threaded holes are formed towards the axis direction of the closed shell 1. The embodiment selects four threaded holes at two ends of the closed shell 1, and the four threaded holes are uniformly distributed at equal angles around the central axis of the closed shell 1. The annular temperature difference self-energy-taking type temperature sensor is arranged on the arc surface of the power grid contact hardware fitting through a bolt.
The specific implementation method comprises the following steps: when the temperature monitoring needs to be carried out on the power grid contact hardware fitting or the temperature sensor needing to be replaced needs to be replaced, the annular temperature difference self-energy-taking type temperature sensor needs to be assembled firstly.
Firstly, installing a temperature difference acquisition module 3 in an inner hole of an acquisition module cover plate 2; then, sleeving the acquisition module cover plate 2 at the regular polygon position of the closed shell 1; finally, the sensor function unit 4 is installed in the installation groove on the closure shell 1.
As shown in fig. 3, the assembled annular temperature difference self-energy-taking type temperature sensor is sleeved on the arc surface of the power grid contact fitting, and a bolt penetrates through a threaded hole in the closed shell 1, so that the annular temperature difference self-energy-taking type temperature sensor is connected with the power grid contact fitting.
The utility model discloses combine together power module and modules such as temperature measurement, signal transmission, reach and simplify the temperature sensor design, improve the temperature monitoring frequency, optimize the purpose of monitoring effect. Meanwhile, the monitored target is the target for taking energy, the sensor has a simple structure, and the temperature of various hardware fittings can be monitored for a long time. And the sensor has small additional mass, strong environment adaptability and good economy.
The above description is only exemplary of the invention and is not intended to limit the invention, and any modifications, equivalent alterations, improvements and the like which are made within the spirit and principle of the invention are all included in the scope of the claims which are appended hereto.
Claims (12)
1. An annular temperature difference self-energy-taking type temperature sensor is characterized by comprising: a closed shell (1) in an annular structure and at least one temperature difference acquisition module (3);
the at least one temperature difference acquisition module (3) is arranged on the radial outer side surface of the closed shell (1);
the two axial ends of the closed shell (1) are provided with connecting structures used for being connected with a contact hardware fitting;
further comprising at least one sensor function unit (4);
the at least one sensor functional unit (4) is arranged on the axial outer side surface of the closed shell (1) and is electrically connected with the temperature difference acquisition module (3).
2. The annular temperature difference self-energy-taking type temperature sensor as claimed in claim 1, wherein one end of the outer side of the closed shell (1) is provided with mounting grooves with the same number as the sensor functional units (4);
the sensor function unit (4) is installed in the installation groove.
3. The annular temperature difference self-energy-taking type temperature sensor as claimed in claim 2, wherein the mounting grooves are provided in plurality;
the installation grooves are arranged along the outer peripheral side of the closed shell (1) at equal angles, and the sensor function units (4) are respectively installed in the installation grooves.
4. The annular thermoelectric self-powered temperature sensor according to claim 1, wherein the sensor function unit (4) comprises a power generation unit, a wireless transmission unit and a temperature sensor unit which are electrically connected with each other.
5. The annular thermoelectric self-powered temperature sensor of claim 4, wherein the power generation unit comprises thermoelectric power generation fins.
6. The annular temperature difference self-energy-taking type temperature sensor according to claim 4, wherein the wireless transmission unit comprises a transparent transmission module and an antenna.
7. The annular thermoelectric self-powered temperature sensor of claim 4, wherein the temperature sensor unit comprises a thermistor analog-to-digital converter.
8. The annular temperature difference self-energy-taking type temperature sensor according to claim 1, further comprising an acquisition module cover plate (2) in an annular structure;
the acquisition module cover plate (2) is sleeved in the middle of the outer side of the closed shell (1);
the temperature difference acquisition module (3) is arranged between the acquisition module cover plate (2) and the closed shell (1).
9. The annular temperature difference self-energy-taking type temperature sensor according to claim 8, further comprising an acquisition module cover plate (2) in an annular structure;
the acquisition module cover plate (2) is provided with an annular groove matched with the temperature difference acquisition module (3);
the temperature difference acquisition module (3) is arranged in the annular groove.
10. The annular temperature difference self-energy-taking type temperature sensor as claimed in claim 8 or 9, wherein the middle part of the closed shell (1) is arranged to be a regular polygon;
an inner hole for accommodating the temperature difference acquisition module (3) is formed in the acquisition module cover plate (2);
the acquisition module cover plate (2) is matched with the closed shell (1), and the inner wall of the acquisition module cover plate (2) is abutted to the outer wall of the closed shell (1).
11. The annular temperature difference self-energy-taking type temperature sensor according to claim 1, further comprising a heat-conducting silicon sheet arranged in the closed shell (1).
12. The annular temperature difference self-powered temperature sensor according to claim 11, wherein the axial length of the heat-conducting silicone sheet is smaller than the axial length of the enclosure (1);
the connecting structure comprises a threaded hole;
the threaded hole, the heat-conducting silica gel sheet and the threaded hole are sequentially arranged along the axis direction of the closed shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934868.7U CN217358785U (en) | 2021-11-26 | 2021-11-26 | Annular temperature difference self-energy-taking type temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934868.7U CN217358785U (en) | 2021-11-26 | 2021-11-26 | Annular temperature difference self-energy-taking type temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217358785U true CN217358785U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122934868.7U Active CN217358785U (en) | 2021-11-26 | 2021-11-26 | Annular temperature difference self-energy-taking type temperature sensor |
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| Country | Link |
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| CN (1) | CN217358785U (en) |
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2021
- 2021-11-26 CN CN202122934868.7U patent/CN217358785U/en active Active
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