CN219738725U - Mutual inductor with temperature monitoring function - Google Patents
Mutual inductor with temperature monitoring function Download PDFInfo
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- CN219738725U CN219738725U CN202320119394.7U CN202320119394U CN219738725U CN 219738725 U CN219738725 U CN 219738725U CN 202320119394 U CN202320119394 U CN 202320119394U CN 219738725 U CN219738725 U CN 219738725U
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- frequency coil
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- transformer
- external terminal
- temperature measuring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to the technical field of transformers, in particular to a transformer with temperature monitoring function. The equipment comprises a transformer body, wherein the transformer body comprises a shell, an annular iron core, a winding, a temperature measuring assembly and an external terminal, the temperature measuring assembly comprises a first radio frequency coil, a temperature measuring sensor and a first processing chip, the first radio frequency coil is arranged at the outer wall of the shell, and the temperature measuring sensor is arranged on the annular iron core in a contact manner; the external terminal comprises a second radio frequency coil, a second processing chip and a power supply, and the second processing chip is connected with the second radio frequency coil; the external terminal is close to the first radio frequency coil through the second radio frequency coil to transmit power and data. The temperature measuring sensor is arranged on the annular iron core in a contact manner, so that the temperature measuring accuracy is high; and the power and data transmission is performed by adopting a radio frequency coil mode, and the transformer body is electrically isolated from the external terminal, so that the maintenance cost is reduced. The transformer body has simple internal structure and high reliability.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a transformer with temperature monitoring function.
Background
The transformer comprises a voltage transformer and a current transformer, the structure of the transformer comprises an iron core and a winding wound on the iron core, the iron core and the winding of the transformer can generate heat when the transformer works, if the transformer works abnormally, the transformer usually shows abnormal temperature, and the temperature of the transformer needs to be monitored in order to ensure normal work of equipment. In order to solve the above-mentioned problems, some transformers with temperature monitoring function are proposed in the prior art, such as a new voltage transformer disclosed in chinese patent publication No. CN210223763U, whose temperature measuring probe is installed at the housing, and because the core and winding of the main heating part of the transformer are wrapped in insulating material, there is a deviation between the temperature measured at the housing and the temperature of the main body of the transformer, and the measurement delay, the accuracy of the design to temperature detection is not good.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the transformer with temperature monitoring, which has the advantages of accurate detection, high reliability and low maintenance cost.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a possess temperature monitoring's mutual-inductor, includes the mutual-inductor body, the mutual-inductor body includes the casing, locates annular iron core in the casing, around locating the winding outside the annular iron core, its characterized in that: the temperature measuring device comprises a shell, a temperature measuring assembly, an external terminal, a temperature measuring assembly and a temperature measuring module, wherein the temperature measuring assembly comprises a first radio frequency coil, a temperature measuring sensor and a first processing chip; the external terminal comprises a second radio frequency coil, a second processing chip and a power supply, wherein the second processing chip is connected with the second radio frequency coil, and the power supply is connected with the second radio frequency coil and the second processing chip and supplies power to the second radio frequency coil and the second processing chip; the external terminal is close to the first radio frequency coil through the second radio frequency coil to transmit power and data.
Further, the first radio frequency coil comprises a first high frequency coil and a first low frequency coil, the second radio frequency coil comprises a second high frequency coil and a second low frequency coil, data transmission is carried out between the first high frequency coil and the second high frequency coil, and electric power transmission is carried out between the first low frequency coil and the second low frequency coil.
Further, the first radio frequency coil comprises a first high-low frequency common frequency coil, and the second radio frequency coil comprises a second high-low frequency common frequency coil.
Further, the external terminal is fixedly arranged on one side of the transformer body, and the second radio frequency coil of the external terminal corresponds to the first radio frequency coil of the transformer body in position and is arranged close to the first radio frequency coil.
Further, the external terminal is a handheld mobile terminal.
Further, a wireless signal receiving and transmitting module is further arranged in the external terminal, and the wireless signal receiving and transmitting module is connected with the second processing chip.
Further, the wireless signal transceiver module is one or more of a GPRS module, a wifi module and a Bluetooth module.
Further, the temperature sensor is arranged on the surface of the annular iron core, and the temperature sensor is simultaneously contacted with the annular iron core and the winding.
Further, the temperature sensor is an electronic contact temperature sensor.
Further, the transformer body is a current transformer or a voltage transformer.
As can be seen from the above description of the present utility model, compared with the prior art, the transformer with temperature monitoring provided by the present utility model has the following advantages: the temperature measuring sensor is arranged on the annular iron core in a contact manner, so that the temperature measuring accuracy is high; and the power and data transmission is performed by adopting a radio frequency coil mode, and the transformer body is electrically isolated from the external terminal, so that the maintenance cost is reduced. The transformer body has simple internal structure and high reliability.
Drawings
Fig. 1 is a schematic cross-sectional structure of a transformer with temperature monitoring according to the present utility model.
Fig. 2 is a block diagram of a module connection of an rf coil according to an embodiment of the present utility model.
Fig. 3 is a block diagram of a radio frequency coil according to a second embodiment of the present utility model.
The correspondence identified in the figure is as follows: the high-frequency and low-frequency transformer comprises a 1-transformer body, a 11-shell, a 12-annular iron core, a 13-winding, a 2-temperature measuring component, a 21-first radio frequency coil, a 211-first high-frequency coil, a 212-first low-frequency coil, a 213-first high-low frequency common frequency coil, a 22-temperature measuring sensor, a 23-first processing chip, a 3-external terminal, a 31-second radio frequency coil, a 311-second high-frequency coil, a 312-second low frequency coil, a 313-second high-low frequency common frequency coil, a 32-second processing chip, a 33-power supply and a 34-wireless signal transceiver module.
Detailed Description
The utility model is further described below by means of specific embodiments.
Referring to fig. 1 to 3, a transformer with temperature monitoring includes a transformer body 1, a temperature measuring assembly 2, and an external terminal 3.
The transformer body 1 includes a case 11, an annular core 12 provided in the case 11, and a winding 13 wound around the annular core 12. The transformer body 1 is a current transformer or a voltage transformer.
The temperature measuring assembly 2 comprises a first radio frequency coil 21, a temperature measuring sensor 22 and a first processing chip 23, wherein the first radio frequency coil 21 is arranged on the outer wall of the shell 11, the temperature measuring sensor 22 is arranged on the annular iron core 12 in a contact manner, the first processing chip 23 is connected with the first radio frequency coil 21 and the temperature measuring sensor 22 through wires, the temperature measuring sensor 22 is an electronic contact type temperature measuring sensor, the temperature measuring sensor 22 is arranged on the surface of the annular iron core 12, and the temperature measuring sensor 22 is simultaneously contacted with the annular iron core 12 and the winding 13; the external terminal 3 comprises a second radio frequency coil 31, a second processing chip 32 and a power supply 33, wherein the second processing chip 32 is connected with the second radio frequency coil 31, and the power supply 33 is connected with the second radio frequency coil 31 and the second processing chip 32 and supplies power to the second radio frequency coil 31 and the second processing chip 32; the external terminal 3 performs power and data transmission by approaching the second rf coil 31 to the first rf coil 21. The external terminal 3 is further internally provided with a wireless signal transceiver module 34, the wireless signal transceiver module 34 is connected with the second processing chip 32, and the wireless signal transceiver module 34 is one or more of a GPRS module, a wifi module and a Bluetooth module.
The rf coil has two embodiments, in which the first rf coil 21 includes a first rf coil 211 and a first rf coil 212, the second rf coil 31 includes a second rf coil 311 and a second rf coil 312, data transmission is performed between the first rf coil 211 and the second rf coil 311, and power transmission is performed between the first rf coil 212 and the second rf coil 312, in an independent manner (refer to fig. 2). In the second embodiment, a high-low frequency sharing manner (shown in fig. 3) is adopted, that is, the first rf coil 21 includes a first high-low frequency sharing coil 213, and the second rf coil 31 includes a second high-low frequency sharing coil 313.
The external terminal 3 has two embodiments, wherein in the embodiment, the external terminal 3 is a matching device, that is, the external terminal 3 is fixedly arranged on one side of the transformer body, and the second radio frequency coil 31 of the external terminal 3 is corresponding to and close to the first radio frequency coil 21 of the transformer body. In the embodiment, the external terminal 3 is an overhaul device, that is, the external terminal 3 is a handheld mobile terminal.
The transformer with temperature monitoring is based on the following use principle:
the temperature sensor 22 that the temperature measurement subassembly 2 adopted is arranged outside the annular iron core 12 and contacts annular iron core 12 and winding 13 simultaneously, therefore, temperature sensor 22 can very accurate carry out temperature detection to annular iron core 12 and winding 13, external terminal 3 is close to first radio frequency coil 21 through second radio frequency coil 31 and supplies power and the signal is worn out, the electric current that provides is used for starting first processing chip 23 and temperature sensor 22, temperature sensor 22 gives first processing chip 23 with the temperature signal that the measurement was surveyed, first processing chip 23 carries out the conversion processing with the signal and sends by first radio frequency coil 21 again, the second radio frequency coil 31 of external terminal 3 receives the signal and sends to second processing chip 32, realize external terminal 3 and obtain the accurate temperature in the mutual-inductor body 1, and outwards transmit through wireless signal transceiver module 34. The two embodiments of the radio frequency coil are different in that the first embodiment has two groups of coils for receiving and transmitting respectively at high and low frequencies, and the second embodiment has the same group of coils for receiving and transmitting respectively at high and low frequencies, and can be reasonably selected according to the shape and the requirements of products in actual production.
The difference between the two embodiments of the external terminal 3 is that: in the embodiment, an external terminal 3 and a transformer body 1 are arranged in a one-to-one matching installation mode, namely, after the transformer body 1 is installed and one side of the transformer body is provided with the external terminal 3, the external terminal 3 is provided with a wireless signal transceiver module 34, and the external terminal 3 can be remotely transmitted and controlled so as to realize real-time monitoring of the working state of the transformer body 1. This kind of mode makes possess electric isolation between external terminal 3 and the mutual-inductor body 1, even though the condition such as burn out appears in mutual-inductor body 1, also be difficult for influencing and damage external terminal 3, the maintenance only need change mutual-inductor body 1 can, has reduced maintenance cost. The embodiment of the utility model provides an external terminal 3 is the instrument of patrolling and examining, and mutual-inductor body 1 independent installation, and the personnel of patrolling and examining can realize short-term test through portable handheld mobile terminal when carrying out daily maintenance or maintenance.
The foregoing is merely one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the concept shall belong to the behavior of infringement of the protection scope of the present utility model.
Claims (10)
1. The utility model provides a possess temperature monitoring's mutual-inductor, includes the mutual-inductor body, the mutual-inductor body includes the casing, locates annular iron core in the casing, around locating the winding outside the annular iron core, its characterized in that: the temperature measuring device comprises a shell, a temperature measuring assembly, an external terminal, a temperature measuring assembly and a temperature measuring module, wherein the temperature measuring assembly comprises a first radio frequency coil, a temperature measuring sensor and a first processing chip; the external terminal comprises a second radio frequency coil, a second processing chip and a power supply, wherein the second processing chip is connected with the second radio frequency coil, and the power supply is connected with the second radio frequency coil and the second processing chip and supplies power to the second radio frequency coil and the second processing chip; the external terminal is close to the first radio frequency coil through the second radio frequency coil to transmit power and data.
2. A transformer with temperature monitoring according to claim 1, characterized in that: the first radio frequency coil comprises a first high frequency coil and a first low frequency coil, the second radio frequency coil comprises a second high frequency coil and a second low frequency coil, data transmission is carried out between the first high frequency coil and the second high frequency coil, and electric power transmission is carried out between the first low frequency coil and the second low frequency coil.
3. A transformer with temperature monitoring according to claim 1, characterized in that: the first radio frequency coil comprises a first high-low frequency common frequency coil, and the second radio frequency coil comprises a second high-low frequency common frequency coil.
4. A transformer with temperature monitoring according to claim 1, characterized in that: the external terminal is fixedly arranged on one side of the transformer body, and the second radio frequency coil of the external terminal corresponds to the first radio frequency coil of the transformer body in position and is close to the first radio frequency coil.
5. A transformer with temperature monitoring according to claim 1, characterized in that: the external terminal is a handheld mobile terminal.
6. A transformer with temperature monitoring according to claim 1, characterized in that: and a wireless signal receiving and transmitting module is further arranged in the external terminal and is connected with the second processing chip.
7. The transformer with temperature monitoring of claim 6, wherein: the wireless signal receiving and transmitting module is one or more of a GPRS module, a wifi module and a Bluetooth module.
8. A transformer with temperature monitoring according to claim 1, characterized in that: the temperature sensor is arranged on the surface of the annular iron core, and simultaneously contacts the annular iron core and the winding.
9. A transformer with temperature monitoring according to claim 1, characterized in that: the temperature sensor is an electronic contact type temperature sensor.
10. A transformer with temperature monitoring according to claim 1, characterized in that: the transformer body is a current transformer or a voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320119394.7U CN219738725U (en) | 2023-01-16 | 2023-01-16 | Mutual inductor with temperature monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320119394.7U CN219738725U (en) | 2023-01-16 | 2023-01-16 | Mutual inductor with temperature monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219738725U true CN219738725U (en) | 2023-09-22 |
Family
ID=88026506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320119394.7U Active CN219738725U (en) | 2023-01-16 | 2023-01-16 | Mutual inductor with temperature monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219738725U (en) |
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2023
- 2023-01-16 CN CN202320119394.7U patent/CN219738725U/en active Active
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