CN219870008U - Mutual inductor operation indicating device - Google Patents
Mutual inductor operation indicating device Download PDFInfo
- Publication number
- CN219870008U CN219870008U CN202321102295.4U CN202321102295U CN219870008U CN 219870008 U CN219870008 U CN 219870008U CN 202321102295 U CN202321102295 U CN 202321102295U CN 219870008 U CN219870008 U CN 219870008U
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- Prior art keywords
- sealing
- thermistor
- piston
- boundary wire
- sealing piston
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- 238000007789 sealing Methods 0.000 claims abstract description 144
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052744 lithium Inorganic materials 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a mutual inductor operation indicating device, which comprises a communication module, a thermistor and an alarm flashing lamp; the thermistor comprises a sealing tube, a relay control circuit and a relay switch; the sealing tube comprises a left bottom surface, a right bottom surface, a curved surface, a left boundary wire, a right boundary wire and a sealing cavity; the sealing cavity is internally provided with a left sealing piston, a right sealing piston, sealing gas and a spring. The sealing gas expands when encountering heat to push the spring to stretch, the spring drives the left sealing piston and the right sealing piston to move to establish electrical connection with the relay control circuit to control the relay switch to be closed, and the temperature of a circuit connected with the running indicating device of the transformer is prevented from being higher than the temperature of the normal running of the mains supply. Compared with the prior art, the utility model adopts mechanical sensing, is not influenced by measuring range and current floating, and has high reliability.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a running indicating device of a transformer.
Background
The existing thermistor is made of special materials, and is subjected to temperature change to change resistance, so that temperature information is fed back, and the thermistor has the limitation of a maximum voltage range and a maximum current range and is easy to damage in a super range. The thermistor is made of semiconductor material, and the sensitivity is reduced after the use time is long;
when the transformer operates, current floating of the internal circuit can occur frequently, and the reliability of the thermistor is further affected.
Disclosure of Invention
In order to solve the defects in the prior art, the running indicating device of the mutual inductor disclosed by the utility model comprises a communication module, a thermistor and an alarm flashing lamp; the thermistor comprises a sealing tube, a relay control circuit and a relay switch; the sealing tube comprises a left bottom surface, a right bottom surface, a curved surface, a left boundary wire, a right boundary wire and a sealing cavity; the sealing cavity is internally provided with a left sealing piston, a right sealing piston, sealing gas and a spring. The sealing gas expands when encountering heat to push the spring to stretch, the spring drives the left sealing piston and the right sealing piston to move to establish electrical connection with the relay control circuit to control the relay switch to be closed, and the temperature of a circuit connected with the running indicating device of the transformer is prevented from being higher than the temperature of the normal running of the mains supply.
The thermistor, the alarm flashing lamp and the communication module are connected in series; the current sequentially passes through the thermistor, the alarm flashing lamp and the communication module; when the temperature of the thermistor communication circuit and the circuit is too high, the thermistor communication circuit and the communication module are electrically connected, the alarm flash lamp flashes frequently, the communication module converts the electric signal into a digital signal, and the digital signal is connected with external display equipment to display the internal temperature and the over-temperature duration of the thermistor.
The sealing tube is connected with the relay control circuit in series, and the sealing tube and the relay control circuit are connected with the relay switch in parallel as a whole; the current passes through the thermistor and has two paths, one is that the current flows to the alarm flash lamp through the sealing tube and the relay control circuit in sequence, and the other is that the current flows to the mains supply through the relay switch;
the left bottom surface and the right bottom surface are circular with equal size and are parallel to each other, the curved surface is connected with the left bottom surface and the right bottom surface, the left bottom surface, the right bottom surface and the curved surface enclose a closed space, and the left bottom surface, the right bottom surface and the curved surface are all insulators; the left bottom surface and the right bottom surface are respectively provided with a round small hole, and the left boundary wire and the right boundary wire are respectively inserted into the sealing tube through the round small holes.
The sealing cavity is of a closed cuboid structure and is located inside the sealing tube, the sealing tube surrounds the sealing cavity, the length of the sealing tube is larger than that of the sealing cavity, and the height of the sealing cavity is equal to the diameter of the sealing tube. The sealing cavity comprises a left sealing piston, a right sealing piston, sealing gas and a spring, wherein the left sealing piston, the right sealing piston, the sealing gas, the spring and the curved surface of the sealing tube form the sealing cavity. The left sealing piston, the right sealing piston and the spring are conductors, the sealing gas expands when encountering heat to push the spring to stretch, and the spring drives the left sealing piston and the right sealing piston to move leftwards and rightwards respectively and can contact the left boundary wire and the right boundary wire;
the sealing tube is connected with the relay control circuit through the right boundary wire.
The relay switch in the closed state is a conductor, and the relay switch in the open state is an insulator.
Wherein, the electric current flows into the inside of the thermistor through the left boundary wire of the sealing tube of the thermistor.
When the thermistor is connected to a circuit through the sealing tube and the relay control circuit, the left boundary wire is electrically communicated with the left sealing piston, and the right boundary wire is electrically communicated with the right sealing piston; when the thermistor is connected to a circuit through the relay switch in the closed state, the left boundary wire is disconnected from the left sealing piston, and the right boundary wire is electrically disconnected from the right sealing piston.
The thermistor, the alarm flashing lamp and the communication module are connected in series, and the thermistor, the alarm flashing lamp and the communication module are connected in parallel with the relay switch together.
The mutual inductor operation indicating device further comprises a lithium battery, wherein the lithium battery is connected with the thermistor, the alarm flash lamp and the communication module in series; when the internal temperature of the transformer operation indicating device rises to the conduction state of the thermistor, the relay control circuit controls the relay switch to keep the disconnection state.
Compared with the prior art, the utility model adopts mechanical sensing, is not influenced by measuring range and current floating, and has high reliability.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described.
Fig. 1 is a schematic diagram of a transformer operation indicating device connected to a mains supply.
Fig. 2 is a schematic diagram of a high temperature alarm circuit of the transformer operation indicating device.
Fig. 3 is a schematic diagram of a thermistor.
FIG. 4 is a schematic view of a sealed tube.
Detailed Description
The embodiment provides a mutual inductor operation indicating device which comprises a communication module (1), a thermistor (11) and an alarm flashing lamp (9); the thermistor comprises a sealing tube (5), a relay control circuit (8) and a relay switch (3); the sealing tube (5) comprises a left bottom surface (13), a right bottom surface (16), a curved surface (14), a left boundary wire (12), a right boundary wire (16) and a sealing cavity (17); the sealing cavity (17) is internally provided with a left sealing piston (7), a right sealing piston (7), sealing gas and a spring (6). The sealing gas expands when encountering heat to push the spring to stretch (6), the spring (6) drives the left sealing piston (7) and the right sealing piston (7) to move to establish electrical connection with the relay control circuit (8) to control the relay switch (3) to be closed, so that the temperature of a circuit connected with the transformer operation indicating device is prevented from being higher than the temperature of the normal operation of the mains supply.
The thermistor, the alarm flashing lamp (9) and the communication module (1) are connected in series; the current sequentially passes through the thermistor (11), the alarm flash lamp (9) and the communication module (1); when the temperature of the thermistor communication circuit and the circuit is too high, the thermistor communication circuit and the communication module (1) are electrically connected, the alarm flash lamp (1) flashes frequently, the communication module (1) converts the electric signal into a digital signal, and the digital signal is connected with an external display device (2) to display the internal temperature and the over-temperature duration of the thermistor.
The sealing tube (5) is connected in series with the relay control circuit (8), and the sealing tube (5) and the relay control circuit (8) are connected in parallel with the relay switch (3) as a whole; the current flows to the alarm flash lamp (1) through the thermistor in sequence through the sealing tube (5) and the relay control circuit (8), and flows to the mains supply through the relay switch (3);
the left bottom surface (13) and the right bottom surface (15) are circular with equal size and are parallel to each other, the curved surface (14) is connected with the left bottom surface (13) and the right bottom surface (15), the left bottom surface (13), the right bottom surface (15) and the curved surface (14) enclose a closed space, and the left bottom surface (13), the right bottom surface (15) and the curved surface (14) are all insulators; the left bottom surface (13) and the right bottom surface (15) are respectively provided with a round small hole, wherein the left boundary wire (12) and the right boundary wire (16) are respectively inserted into the sealing tube through the round small holes.
The sealing cavity (17) is of a closed cuboid structure and is located inside the sealing tube (5), the sealing tube (5) surrounds the sealing cavity (17), the length of the sealing tube (5) is larger than that of the sealing cavity (17), and the height of the sealing cavity (17) is equal to the diameter of the sealing tube (5). The sealing cavity (17) comprises a left sealing piston (7), a right sealing piston (7), sealing gas and a spring (6), wherein the left sealing piston (7), the right sealing piston (7), the sealing gas, the spring (6) and the curved surface (14) of the sealing tube (5) form the sealing cavity (17). The left sealing piston (7), the right sealing piston (7) and the spring (6) are conductors, the sealing gas expands when encountering heat to push the spring (6) to stretch, and the spring (6) drives the left sealing piston (7) and the right sealing piston (7) to move leftwards and rightwards respectively and can contact the left boundary wire (12) and the right boundary wire (15); after the temperature is reduced, the pulling force of the spring (6) is larger than the pushing force and friction force of sealing gas to the left sealing piston (7) and the right sealing piston (7), and the spring (6) can pull the left sealing piston (7) and the right sealing piston (7) to move, so that the electrical connection is disconnected.
The sealing tube (5) is connected with the relay control circuit (8) through the right boundary (15) through a lead.
The relay switch (3) in the closed state is a conductor, and the relay switch (3) in the open state is an insulator.
Wherein an electric current flows into the inside of the thermistor (11) through the left border wire (12) of the sealing tube (5) of the thermistor (11).
When the thermistor (11) is connected into a circuit through the sealing tube (5) and the relay control circuit (8), the left boundary wire (12) is electrically communicated with the left sealing piston (7), and the right boundary wire (15) is electrically communicated with the right sealing piston (7); when the thermistor (11) is connected to a circuit through the relay switch (3) in the closed state, the left boundary wire (12) is disconnected from the left sealing piston (7), and the right boundary wire (15) is electrically disconnected from the right sealing piston (7).
The thermistor (11), the alarm flashing lamp (9) and the communication module (1) are connected in series, and the thermistor (11), the alarm flashing lamp (9) and the communication module (1) are connected in parallel with the relay switch (3) together. When the mains supply passes through a voltage reduction module (not shown in the figure), two paths of parallel circuits are formed, wherein the first path passes through the thermistor (11), the alarm flash lamp (9) and the communication module (1) which are connected in series, and the second path passes through the relay switch (3) and then enters the mains supply; when the internal temperature of the transformer operation indicating device is too high, the thermistor (11) enables the first path of current to be conducted, alarm and communication are started, meanwhile, the thermistor (11) enables the relay switch (3) to be in a closed rotation state, so that the operation of internal components of the transformer operation indicating device is stopped, and when the temperature is reduced, the first path of current is disconnected, and the second path of current is conducted, so that the transformer operation indicating device is recovered to operate;
the mutual inductor operation indicating device further comprises a lithium battery (10), wherein the lithium battery (10) is connected with the thermistor (11), the alarm flash lamp (9) and the communication module (1) in series, and the mutual inductor operation indicating device is positioned in the mutual inductor and used for detecting the internal temperature of the mutual inductor; when the internal temperature of the transformer rises to the conduction state of the thermistor (11), the relay control circuit (8) controls the relay switch (3) to keep the off state. The existing transformer has the following problems that when the transformer is frequently started and stopped due to frequent fluctuation of the commercial power, the internal temperature of the transformer is increased, and the transformer is continuously frequently started and stopped to burn out internal components of the transformer; in addition, under the condition of the disconnection of the mains supply, if the temperature of the transformer is too high, the transformer can be burnt out if the mains supply is connected at the moment; according to the second embodiment of the utility model, by arranging the operation indicating device of the transformer and further arranging the lithium battery (10) connected in series with the thermistor (11), the alarm flash lamp (9) and the communication module (1) in the device, if the temperature of the transformer is abnormal before the mains supply is accessed, the relay switch (3) is kept in an off state continuously due to the fact that the lithium battery (10) continuously supplies power to the circuit where the thermistor (3) is positioned, so that the operation indicating device of the transformer is better protected; since both ends of the lithium battery (10) are simultaneously electrically connected with the mains supply, the lithium battery (10) can be charged by the mains supply when the lithium battery (10) feeds electricity, so that the working time of the lithium battery (10) is maintained or prolonged, and a voltage management circuit (not shown in the figure) is also connected between the lithium battery (10) and the mains supply.
Claims (7)
1. The running indicating device of the transformer is characterized by comprising a communication module, a thermistor and an alarm flashing lamp; the thermistor comprises a sealing tube, a relay control circuit and a relay switch; the sealing tube comprises a left bottom surface, a right bottom surface, a curved surface, a left boundary wire, a right boundary wire and a sealing cavity; the sealing cavity is internally provided with a left sealing piston, a right sealing piston, sealing gas and a spring, the sealing gas expands when encountering heat to push the spring to stretch, and the spring drives the left sealing piston and the right sealing piston to move to establish electric connection with a relay control circuit to control the relay switch to be closed, so that the temperature of a circuit connected with the transformer operation indicating device is prevented from being higher than the temperature of the circuit normally operated by mains supply.
2. The instrument transformer operation indicating device according to claim 1, wherein the thermistor, the alarm flash lamp and the communication module are connected in series; the current sequentially passes through the thermistor, the alarm flashing lamp and the communication module; when the temperature of the thermistor communication circuit and the circuit is too high, the thermistor communication circuit and the communication module are electrically connected, the alarm flash lamp flashes frequently, the communication module converts an electric signal into a digital signal, and the digital signal is connected with external display equipment to display the internal temperature and the over-temperature duration of the thermistor;
the sealing tube is connected with the relay control circuit in series, and the sealing tube and the relay control circuit are connected with the relay switch in parallel as a whole; the current passes through the thermistor and has two paths, one is that the current flows to the alarm flash lamp through the sealing tube and the relay control circuit in sequence, and the other is that the current flows to the mains supply through the relay switch;
the left bottom surface and the right bottom surface are circular with equal size and are parallel to each other, the curved surface is connected with the left bottom surface and the right bottom surface, the left bottom surface, the right bottom surface and the curved surface enclose a closed space, and the left bottom surface, the right bottom surface and the curved surface are all insulators; the left bottom surface and the right bottom surface are respectively provided with a round small hole, wherein the left boundary wire and the right boundary wire are respectively inserted into the sealing tube through the round small holes;
the sealing cavity is of a closed cuboid structure and is positioned in the sealing tube, the sealing tube surrounds the sealing cavity, the length of the sealing tube is larger than that of the sealing cavity, the height of the sealing cavity is equal to the diameter of the sealing tube, the sealing cavity comprises a left sealing piston, a right sealing piston, sealing gas and a spring, the left sealing piston, the right sealing piston, the sealing gas, the spring and curved surfaces of the sealing tube form the sealing cavity, the left sealing piston, the right sealing piston and the spring are conductors, the sealing gas is expanded when encountering heat to push the spring to stretch, and the spring drives the left sealing piston and the right sealing piston to move leftwards and rightwards respectively and can contact the left boundary wire and the right boundary wire;
the sealing tube is connected with the relay control circuit through the right boundary wire.
3. A transformer operation indication device according to claim 2, wherein said relay switch in an off state is a conductor and said relay switch in an on state is an insulator.
4. A transformer operation indicating device according to claim 2, wherein current flows into the inside of said thermistor through said left border wire of said sealing tube of said thermistor.
5. The instrument transformer operation indicating device according to claim 2, wherein when the thermistor is connected to a circuit through the sealing tube and the relay control circuit, the left boundary wire is in electrical communication with the left sealing piston, and the right boundary wire is in electrical communication with the right sealing piston; when the thermistor is connected to a circuit through the relay switch in a closed state, the left boundary wire is disconnected from the left sealing piston, and the right boundary wire is electrically disconnected from the right sealing piston.
6. The instrument transformer operation indicating device according to claim 5, wherein the thermistor, the alarm flash lamp and the communication module are connected in series, and the thermistor, the alarm flash lamp and the communication module are connected in parallel with the relay switch.
7. The instrument transformer operation indicating device according to claim 5, further comprising a lithium battery connected in series with the thermistor, the alarm flash, the communication module; when the internal temperature of the transformer operation indicating device rises to the conduction state of the thermistor, the relay control circuit controls the relay switch to keep the disconnection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321102295.4U CN219870008U (en) | 2023-05-10 | 2023-05-10 | Mutual inductor operation indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321102295.4U CN219870008U (en) | 2023-05-10 | 2023-05-10 | Mutual inductor operation indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219870008U true CN219870008U (en) | 2023-10-20 |
Family
ID=88320426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321102295.4U Active CN219870008U (en) | 2023-05-10 | 2023-05-10 | Mutual inductor operation indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219870008U (en) |
-
2023
- 2023-05-10 CN CN202321102295.4U patent/CN219870008U/en active Active
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