CN212458684U - High tension switchgear plum blossom contact temperature on-line monitoring sensor - Google Patents
High tension switchgear plum blossom contact temperature on-line monitoring sensor Download PDFInfo
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- CN212458684U CN212458684U CN202021045925.5U CN202021045925U CN212458684U CN 212458684 U CN212458684 U CN 212458684U CN 202021045925 U CN202021045925 U CN 202021045925U CN 212458684 U CN212458684 U CN 212458684U
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- monitoring sensor
- contact temperature
- temperature
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Abstract
The utility model discloses a high tension switchgear plum blossom contact temperature on-line monitoring sensor to solve the not enough technical problem of current plum blossom contact temperature measuring device security and stability. The utility model comprises a conical shell and a mounting component; the mounting assembly is internally provided with a circuit board and a power supply unit, the inner wall of the conical shell is fixed with a temperature measuring probe, and the circuit board is provided with a communication module for transmitting data acquired by the temperature measuring probe to the terminal. The beneficial effects of the utility model reside in that: the safety is strong, the stability is high, and the use is convenient.
Description
Technical Field
The utility model relates to a plum blossom contact temperature detection technical field, concretely relates to high tension switchgear plum blossom contact temperature on-line monitoring sensor.
Background
The high tension switchgear that electric power system was commonly used at present is put the cabinet in moving away formula, along with the expansion of distribution network construction scale and the continuous climbing of power consumption load, takes place occasionally because the overheated problem that too big and then cause of the indirect electric shock resistance of different materials that causes such as manufacturing process and contact failure in the high tension switchgear, especially with the comparatively outstanding of circuit breaker handcart plum blossom contact position. The high-voltage switch cabinet is of a metal sealing structure, and a conventional infrared temperature measurement means cannot measure the plum blossom contact and cannot acquire heating information in real time.
The common switch cabinet tulip contact temperature measurement mode in the market is mainly based on sensor binding or mounting. The binding mode directly binds the sensor on the plum blossom contact, utilizes the electromagnetic induction principle to acquire the electric energy, and this kind of mode construction is convenient, need not increase unnecessary equipment, but the binding sensor has changed the electric field distribution of primary conductor, has reduced insulating interval, especially when the cubical switchboard takes place short circuit fault, probably causes the occurence of failure. The surface acoustic wave and RFID modes are mainly used in the sensor mounting mode, the sensor only needs to be pasted or clamped on the plum blossom contact during construction, a radio frequency antenna needs to be arranged in a switch cabinet breaker chamber, and the sensor runs at high temperature for a long time, so that the risk that the sensor falls off exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high tension switchgear plum blossom contact temperature on-line monitoring sensor to solve the not enough technical problem of current plum blossom contact temperature measuring device security and stability.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a temperature on-line monitoring sensor for a plum blossom contact of a high-voltage switch cabinet is designed, and comprises a conical shell and a mounting assembly; the mounting assembly is internally provided with a circuit board and a power supply unit, the inner wall of the conical shell is fixed with a temperature measuring probe, and the circuit board is provided with a communication module for transmitting data acquired by the temperature measuring probe to the terminal.
Preferably, the mounting assembly is a rectangular housing, and the circuit board is fixed on the inner wall of the rectangular housing.
Preferably, the power supply unit is a high temperature resistant lithium battery.
Preferably, the communication module is a 433M communication module.
Preferably, a single chip microcomputer controller and a wireless antenna are arranged on the circuit board, the single chip microcomputer controller is correspondingly connected with the 433M communication module control port, and the wireless antenna is correspondingly connected with the 433M communication module output port.
Preferably, the maximum diameter of the conical shell is larger than the diameter of the cavity of the tulip contact, so that the conical shell and the tulip contact can be in interference fit.
Preferably, the bottom of the conical shell is provided with an insulating pull ring.
Preferably, the temperature probe is one of a thermocouple, PT100 or DS18B 20.
Preferably, the conical shell is made of flexible flame-retardant insulating materials.
Compared with the prior art, the utility model discloses a main beneficial technological effect lies in:
1. the utility model discloses a wireless active temperature measurement sensor places the circuit breaker in the sensor and touches in the arm cavity, not with plum blossom contact direct contact, does not change electric field distribution and insulating interval, and the security is strong.
2. The utility model discloses make the sensor can touch arm in close contact with the circuit breaker, temperature measurement is more accurate to the wireless network deployment of accessible transmits temperature information, realizes cubical switchboard plum blossom contact temperature on-line monitoring.
3. The utility model discloses an installation is optional when the cubical switchboard overhauls, only need with it fill in touch the arm cavity can, simple and convenient easy to maintain.
Drawings
Fig. 1 is the utility model discloses high tension switchgear plum blossom contact temperature on-line monitoring sensor's installation schematic diagram.
Fig. 2 is a side view of fig. 1.
Fig. 3 is the utility model discloses high tension switchgear plum blossom contact temperature on-line monitoring sensor's schematic structure.
Fig. 4 is the circuit schematic diagram of the high-voltage switch cabinet tulip contact temperature on-line monitoring sensor.
In the figure, 1 is a contact arm sheath, 2 is a contact arm, 3 is a contact arm cavity, 4 is a temperature measuring sensor body, 41 is a conical shell, 42 is a temperature measuring probe, 43 is a circuit board, 44 is a battery, 45 is an installation component, and 5 is an insulating pull ring.
Detailed Description
The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.
The unit modules, components, structures, mechanisms, sensors, and other devices referred to in the following examples are all conventional commercially available products unless otherwise specified.
Example 1: a high tension switchgear tulip contact temperature on-line monitoring sensor, refer to fig. 3, including conical outer casing 41 and mounting assembly 45; the mounting assembly 45 is of a cuboid structure and is a structural member made of engineering plastics and used for mounting the circuit board 43 and the battery 44, the conical shell 41 is wrapped on the outer side of the mounting assembly 45 and made of an insulating flame-retardant material, and therefore on one hand, the mounting assembly plays an insulating role and ensures that other parts are not influenced by high voltage; on the other hand, the conical insulating shell can ensure that the temperature measuring probe 42 is tightly pressed with the contact arm, so that the temperature can be measured more accurately. The thickness of the conical housing 41 is required to meet the requirement of high voltage insulation, and the conical housing also has certain elasticity, so that the conical housing can be tightly pressed with the contact arm to prevent the sensor from falling off after the sensor is installed in the contact arm.
The temperature probe 42 may be one of a thermocouple, PT100 or DS18B20, and its temperature measuring portion is closely attached to the surface of the insulating housing to ensure close contact with the contact arm. The plum blossom contact is arranged on the contact arm, the temperature transmission medium of the plum blossom contact and the contact arm is metal, and the temperature of the plum blossom contact can be obtained by measuring the temperature of the contact arm.
Referring to fig. 4, a circuit of the circuit board 43 is connected with a single-chip microcomputer controller MCU, a wireless antenna MHC-1589A and 433M communication module are installed on the circuit board, an input end of the single-chip microcomputer controller MCU is connected with a temperature probe 42 to obtain data, a pin connected with the temperature probe and the 433M communication module is a power supply end, an output end of the single-chip microcomputer controller MCU is connected with pins 1 to 6 of a control end of the 433M communication module to control an output process of the data, the wireless antenna MHC-1589A is matched with the 433M communication module to form a wireless communication network, the network selects a 433MHz frequency band, signals are prevented from being interfered by signals of a power system, the signal penetration capability is stronger, and the communication quality is.
The circuit structure is powered by a high-temperature-resistant lithium battery, the use temperature is not more than 125 ℃, and the battery can ensure the performance of the battery only by properly adjusting and controlling the battery on the basis of the conventional lithium battery production process; in addition, the service life of the battery can be ensured to be as long as years by controlling the load working mode, namely the working interval and the single working time.
Referring to fig. 1-2, the construction and installation structure of the on-line monitoring sensor can be selected by plugging the temperature measuring sensor body 4 into the contact arm 2 when the switch cabinet is overhauled; the outside of the contact arm 2 is provided with a contact arm sheath 1, the inside of the contact arm sheath contains a contact arm cavity 3, and the maximum diameter of the conical shell 41 is larger than the diameter of the cavity of the plum blossom contact, so that the contact arm sheath and the cavity can be mutually compressed in an interference fit manner to prevent falling, and the stability is ensured. The bottom of the conical shell 41 is provided with an insulating pull ring 5, and when the battery needs to be taken out and replaced, the battery can be taken out through the insulating pull ring, so that the conical shell is simple, convenient and easy to maintain.
The present invention has been described in detail with reference to the accompanying drawings and examples; however, those skilled in the art can understand that, without departing from the technical concept of the present invention, various specific parameters in the above embodiments may be changed, or equivalent substitutions may be made on related components and structures, so as to form a plurality of specific embodiments, which are common variations of the present invention, and detailed description is omitted here.
Claims (9)
1. The utility model provides a high tension switchgear plum blossom contact temperature on-line monitoring sensor which characterized in that: comprises a conical shell and a mounting component; the temperature measurement device comprises a mounting assembly and is characterized in that a circuit board and a power supply unit are arranged in the mounting assembly, a temperature measurement probe is fixed on the inner wall of the conical shell, and a communication module is arranged on the circuit board and used for transmitting data collected by the temperature measurement probe to a terminal.
2. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the mounting assembly is a rectangular shell, and the circuit board is fixed on the inner wall of the rectangular shell.
3. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the power supply unit is a high-temperature-resistant lithium battery.
4. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the communication module is a 433M communication module.
5. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 4, characterized in that: the circuit board is provided with a single chip microcomputer controller and a wireless antenna, the single chip microcomputer controller is correspondingly connected with the 433M communication module control port, and the wireless antenna is correspondingly connected with the 433M communication module output port.
6. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the maximum diameter of the conical shell is larger than the diameter of the cavity of the tulip contact, so that the conical shell and the cavity can be in interference fit.
7. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: and an insulating pull ring is arranged at the bottom of the conical shell.
8. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the temperature measuring probe is one of a thermocouple, PT100 or DS18B 20.
9. The high-voltage switch cabinet tulip contact temperature on-line monitoring sensor of claim 1, characterized in that: the conical shell is made of flexible flame-retardant insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045925.5U CN212458684U (en) | 2020-06-09 | 2020-06-09 | High tension switchgear plum blossom contact temperature on-line monitoring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045925.5U CN212458684U (en) | 2020-06-09 | 2020-06-09 | High tension switchgear plum blossom contact temperature on-line monitoring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212458684U true CN212458684U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021045925.5U Active CN212458684U (en) | 2020-06-09 | 2020-06-09 | High tension switchgear plum blossom contact temperature on-line monitoring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212458684U (en) |
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2020
- 2020-06-09 CN CN202021045925.5U patent/CN212458684U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High voltage switchgear plum blossom contact temperature online monitoring sensor Effective date of registration: 20230629 Granted publication date: 20210202 Pledgee: Zhengzhou Branch of Zhongyuan Bank Co.,Ltd. Pledgor: Zhengzhou Jingcheng Intelligent Technology Co.,Ltd. Registration number: Y2023980046238 |