CN220439499U - Pressing plate induction device - Google Patents

Abstract

The utility model discloses a pressing plate induction device, which belongs to the technical field of secondary protection of electric power systems, and comprises a base, an induction mechanism and a conductive piece, wherein the base is provided with a first wiring piece and a second wiring piece; the conductive piece is used for conducting with the second wiring piece and forming a second electric conduction loop; the conductive piece is arranged at the second end of the induction mechanism and is respectively used for forming a first energizing circuit and a second energizing circuit with the first wiring piece and the second wiring piece; when the pressure plate induction device is used, the second end of the induction mechanism can be moved, the conductive piece is conducted with the first wiring piece, the magnetic piece is close to the circuit and generates a magnetic field, the magnetic piece enables the circuit to generate a Hall effect, and then a potential difference is generated, and the pressure plate induction device is judged to be in a throwing state through the potential difference.

Description

Pressing plate induction device

Technical Field

The utility model belongs to the technical field of secondary protection of power systems, and particularly relates to a pressing plate induction device.

Background

The knife switch or the pressing plate is an electrical appliance commonly used in a high-voltage transmission system and is used for switching on and off circuits; in the operation specification of the transformer substation, two different source methods are required to detect the disconnecting link, and the main judgment basis is a state node such as a travel switch, an auxiliary switch and the like which are arranged in a control box and uploaded through a measurement and control device. However, these nodes may slip, deform, etc. when operated for a long time, and thus the state of the knife switch may not be completely and truly reflected. In addition, the disconnecting link is generally operated by workers, and in actual operation, because the disconnecting link is improperly thrown and retreated, the phenomenon that the relay protection system cannot complete tripping operation occurs, and serious hidden danger is left for safe operation of the power system.

Although, chinese patent No. 201910242537.1 discloses a state acquisition device for a knife switch, the device judges the state during magnetic induction and outputs state information, thereby judging the use state of the knife switch. However, in the using process, the device has single function and can only deal with single circuit monitoring; therefore, the device has a large room for improvement.

Disclosure of Invention

The utility model aims to provide a pressing plate sensing device which is used for monitoring the input or the exit state of a pressing plate and is compatible with various input or exit monitoring and prompting operations.

The technical scheme is as follows:

the pressing plate induction device comprises a base, an induction mechanism and a conductive piece, wherein the base is provided with a first wiring piece and a second wiring piece, a first end of the induction mechanism is installed on the base and is in rotating fit with the base, the conductive piece is installed at a second end of the induction mechanism, and the conductive piece is used for being conducted with the first wiring piece and forming a first conduction loop; the conductive piece is used for being conducted with the second wiring piece and forming a second conduction loop;

the second end of the induction mechanism is provided with a magnetic piece, the second end of the induction mechanism is provided with a first moving position, a second moving position and a third moving position, the conductive piece is communicated with the first wiring piece in the first moving position, and the magnetic piece is close to the first electrifying loop; in a second moving position, the first energizing circuit and the second energizing circuit are both in an off state; in a third movement position, the conductive member is in electrical communication with the second wire member, and the magnetic member is proximate to the second electrical circuit.

In one embodiment, the base is provided with a first hall element and a second hall element, the first hall element is arranged on the first power-on loop, the second hall element is arranged on the second power-on loop, the first hall element and the second hall element are oppositely arranged, the magnetic piece is provided with a first magnetic steel and a second magnetic steel, the first magnetic steel and the second magnetic steel are respectively located on two sides of the conductive piece, the first magnetic steel is used for being matched with the first hall element, and the second magnetic steel is used for being matched with the second hall element.

In one embodiment, the induction mechanism is provided with an induction generator and an insulating shell, the induction generator is mounted on the conductive piece, the conductive piece is at least partially positioned in the insulating shell, the insulating shell is in rotating fit with the base, the first magnetic steel and the second magnetic steel are both mounted at the bottom of the insulating shell, and the induction generator is positioned between the first magnetic steel and the second magnetic steel; the base is provided with a rotating shaft, and the insulating shell is in rotating fit with the rotating shaft.

In one embodiment, the base comprises a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are respectively mounted on two sides of the rotating shaft, a U-shaped or V-shaped notch is formed between the first mounting seat and the second mounting seat, and the induction generator and the conductive piece are both located in the notch.

In one embodiment, the first mounting seat or the second mounting seat comprises a circuit board, a shell and a cover body, wherein the circuit board is mounted in the shell, and the cover body is mounted on the shell; the first Hall element and the second Hall element are both mounted on the circuit board.

In one embodiment, the circuit board is provided with a first indicator light and a second indicator light, the first indicator light is electrically connected with the first wiring piece through the circuit board, and the second indicator light is electrically connected with the second wiring piece through the circuit board; the first indicator lamp and at least part of the second indicator lamp extend out of the cover body, the first indicator lamp is located at one side of the first Hall element, and the second indicator lamp is located at one side of the second Hall element.

In one embodiment, the first wire connecting piece is arranged close to the first mounting seat, the second wire connecting piece is arranged close to the second mounting seat, and the first wire connecting piece and the second wire connecting piece are both in columnar structures; the conductive piece is provided with a first clamping groove and a second clamping groove, the first clamping groove and the second clamping groove are oppositely arranged, the width of the first clamping groove is larger than the outer diameter of the first wiring piece, and the first clamping groove is used for being matched with the outer wall of the first wiring piece; the width of the second clamping groove is larger than the outer diameter of the second wiring piece, and the second clamping groove is used for being matched with the outer wall of the second wiring piece.

In one embodiment, the pressing plate sensing device is provided with a pressing plate, the pressing plate is V-shaped, and the pressing plate is positioned in the notch; the first wiring piece is installed in the first end at clamp plate top, the second wiring piece is installed in the second end at clamp plate top, the bottom of clamp plate is installed in the pivot.

In one embodiment, the pressing plate is provided with a guide groove, the guide groove extends along the moving path of the insulating shell, the bottom of the insulating shell is provided with a guide pillar, and the guide pillar is at least partially positioned in the guide groove and is in sliding fit with the guide groove.

In one embodiment, the first connection element has a first connection terminal, the second connection element has a second connection terminal, and the first connection terminal or the second connection terminal is used for conducting with the conductive element.

The technical scheme provided by the utility model has the following advantages and effects:

1. the conductive piece is arranged at the second end of the induction mechanism and is respectively used for forming a first energizing circuit and a second energizing circuit with the first wiring piece and the second wiring piece; when the pressure plate induction device is used, the second end of the induction mechanism can be moved, so that the second end of the induction mechanism is at a first moving position, the conductive piece is conducted with the first wiring piece, the first electrifying loop can generate current, the magnetic piece is close to the first electrifying loop, the first electrifying loop generates a Hall effect, a potential difference is generated, and the pressure plate induction device is judged to be in a throwing state according to the potential difference; the second end of the induction mechanism is at a second moving position, the conductive piece is not conducted with the first wiring piece and the second wiring piece, so that the first electrifying loop and the second electrifying loop are in a disconnected state, and the pressing plate induction device is judged to be in an exiting state; the second end of the induction mechanism is at a third moving position, the conductive piece is communicated with the second wiring piece, the second electrifying loop generates current, the magnetic piece is close to the second electrifying loop, the first electrifying loop generates a Hall effect, and further a potential difference is generated, and the platen induction device is judged to be in a put-in state through the potential difference; the method realizes the monitoring of the input or the exit state of the pressing plate and is compatible with various input or exit monitoring and prompting operations.

2. The magnetic component is provided with a first magnetic steel and a second magnetic steel, the first magnetic steel and the second magnetic steel are matched with the first magnetic steel and the second magnetic steel respectively through the first magnetic steel and the second magnetic steel, the first magnetic steel is used for detecting a magnetic field generated by the first magnetic steel and magnetic field change, the second magnetic steel is used for detecting a magnetic field generated by the second magnetic steel and magnetic field change, one magnetic pole of the magnetic steel is close to the magnetic steel, the magnetic steel outputs a signal with low potential voltage (low level) or closed, and the magnetic pole of the magnetic field is separated from the magnetic pole of the magnetic steel and outputs a signal with high potential voltage (high level) or open; the pressure plate induction device is suitable for various circuits related to magnetic field change, so that instructions are given to the first power-on loop and the second power-on loop according to the magnetic field change.

3. The induction mechanism is provided with an induction generator, the induction generator is used for converting potential difference generated by the first electrifying loop or the second electrifying loop into an electric signal, and the voltage of the first electrifying loop and the voltage of the second electrifying loop are arranged to ensure that the potential difference generated by the first electrifying loop is obviously different from the potential difference generated by the second electrifying loop, so that two different electric signals are generated, the induction generator is used for collecting the electric signals and then sending the electric signals to the control terminal, so that the control terminal can identify the opening or closing of the first electrifying loop and the second electrifying loop, and further judge that the pressing plate induction device is in a throwing state. Meanwhile, the conductive piece is arranged in the insulating shell, and the induction generator and the conductive piece can be moved only by operating the insulating shell.

4. A U-shaped or V-shaped notch is formed between the first mounting seat and the second mounting seat, and the induction generator and the conductive piece are both positioned in the notch; when the insulation device is used, only the insulation shell is required to be stirred, so that the induction generator and the conductive piece are provided with three operation positions, the insulation shell rotates clockwise to be in contact with the second wiring piece, and the insulation shell rotates anticlockwise to be in contact with the first wiring piece.

5. The first Hall element and the second Hall element are arranged on the circuit board, so that the first Hall element and the second Hall element detect the magnetic fields of the circuit board and the first power-on loop and the second power-on loop, and the Hall element obtains the electric energy required by work through the circuit board, thereby ensuring that the first Hall element and the second Hall element can work normally.

6. Through setting up first pilot lamp and second pilot lamp on the circuit board, and first pilot lamp is located one side of first hall element, and the second pilot lamp is located one side of second hall element, and this first pilot lamp and second pilot lamp pass through the circuit board and receive the operation instruction to suggestion clamp plate induction system operates to the exact position.

7. The conductive piece is provided with a first clamping groove and a second clamping groove, the first wiring piece and the second wiring piece are of columnar structures and are respectively matched with the outer walls of the first wiring piece and the second wiring piece through the first clamping groove and the second clamping groove, when the conductive piece is used, the first clamping groove is clamped with the outer wall of the first wiring piece, the conductive piece is communicated with the first wiring piece, and the connection stability of the conductive piece and the first wiring piece can be improved through the first clamping groove; and the second clamping groove is clamped with the outer wall of the second wiring piece, the conductive piece is communicated with the second wiring piece, and the second clamping groove can improve the connection stability of the conductive piece and the second wiring piece.

8. The pressing plate is arranged in a V shape, so that the pressing plate can be accommodated in the notch, the first end at the top of the pressing plate is installed through the first wiring piece, the second wiring piece is installed at the second end at the top of the pressing plate, the positions of the first wiring piece and the second wiring piece on the base are further fixed, and the stability of the pressing plate sensing device is improved.

9. The guide post is at least partially positioned in the guide groove, the guide post is positioned at the bottom of the insulating shell, and the insulating shell is moved, so that the guide post is in sliding fit with the guide groove, and the stability of the insulating shell in rotation is improved; even under the condition that the insulating shell and the rotating shaft are loose, the moving position of the conductive piece or the induction generator can be prevented from being deviated, and the use stability of the pressing plate induction device is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a pressure plate sensing device according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a pressure plate sensing device according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a pressure plate sensing device according to another embodiment of the present utility model.

Fig. 4 is a schematic diagram of a platen sensor apparatus according to another embodiment of the present utility model.

Fig. 5 is an exploded view of a pressure plate sensing device according to yet another embodiment of the present utility model.

Reference numerals illustrate:

100. a platen sensing device; 1. a base; 110. a housing; 120. a cover body; 11. a first mount; 12. a second mounting base; 13. a first indicator light; 14. a second indicator light; 15. a first hall element; 16. a second Hall element; 17. a circuit board; 18. a rotating shaft; 3. an induction mechanism; 30. a magnetic member; 31. a conductive member; 32. a first magnetic steel; 33. a second magnetic steel; 34. a first clamping groove; 35. a second clamping groove; 36. an insulating housing; 37. a pressing plate; 371. a guide groove; 4. a first wire connecting piece; 5. a second wire connecting piece; 10. a first connection terminal; 20. and a second connection terminal.

Detailed Description

In order that the utility model may be readily understood, a more particular description of specific embodiments thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

As used herein, the terms "first and second …" are used merely to distinguish between names and not to represent a particular number or order unless otherwise specified or defined.

The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items, unless specifically stated or otherwise defined.

The term "fixed" or "connected" as used herein may be directly fixed or connected to an element, or indirectly fixed or connected to an element.

Example 1

As shown in fig. 1 to 4, a platen induction device 100 includes a base 1, an induction mechanism 3 and a conductive member 31, wherein the base 1 has a first wiring member 4 and a second wiring member 5, a first end of the induction mechanism 3 is mounted on the base 1 and is in running fit with the base 1, the conductive member 31 is mounted on a second end of the induction mechanism 3, and the conductive member 31 is used for conducting with the first wiring member 4 and forming a first conducting circuit; the conductive member 31 is used for conducting with the second wiring member 5 and forming a second conduction loop; the second end of the sensing mechanism 3 is provided with a magnetic element 30, the second end of the sensing mechanism 3 is provided with a first moving position, a second moving position and a third moving position, and in the first moving position, the conductive element 31 is conducted with the first wiring element 4, and the magnetic element 30 is close to the first energizing circuit; in the second moving position, the first energizing circuit and the second energizing circuit are in an off state; in the third position of movement, the conductive element 31 is in electrical communication with the second connection element 5 and the magnetic element 30 is in proximity to the second electrical circuit. By mounting the conductive member 31 at the second end of the induction mechanism 3, the conductive member 31 is used to form a first energizing circuit and a second energizing circuit with the first wiring member 4 and the second wiring member 5, respectively; when in use, the second end of the induction mechanism 3 can be moved, so that the second end of the induction mechanism 3 is in a first moving position, the conductive piece 31 is communicated with the first wiring piece 4, the first energizing circuit generates current, the magnetic piece 30 approaches to the first energizing circuit, the first energizing circuit generates a Hall effect, and a potential difference is generated, and the platen induction device 100 is judged to be in a put-in state according to the potential difference; the second end of the induction mechanism 3 is at the second moving position, the conductive piece 31 is not conducted with the first wiring piece 4 and the second wiring piece 5, so that the first energizing circuit and the second energizing circuit are both in a disconnected state, and the pressing plate induction device 100 is judged to be in an exiting state; the second end of the induction mechanism 3 is at the third moving position, the conductive piece 31 is conducted with the second wiring piece 5, the second energizing circuit generates current, the magnetic piece 30 is close to the second energizing circuit, the first energizing circuit generates a Hall effect, and then a potential difference is generated, and the platen induction device 100 is judged to be in the put-in state through the potential difference; the method realizes the monitoring of the input or the exit state of the pressing plate and is compatible with various input or exit monitoring and prompting operations.

As shown in fig. 2 and 4, the base 1 is provided with a first hall element 15 and a second hall element 16, the first hall element 15 is arranged on the first power-on loop, the second hall element 16 is arranged on the second power-on loop, the first hall element 15 is arranged opposite to the second hall element 16, the magnetic member 30 is provided with a first magnetic steel 32 and a second magnetic steel 33, the first magnetic steel 32 and the second magnetic steel 33 are respectively located at two sides of the conductive member 31, the first magnetic steel 32 is used for being matched with the first hall element 15, and the second magnetic steel 33 is used for being matched with the second hall element 16. The base 1 is provided with a first Hall element 15 and a second Hall element 16, the first Hall element 15 and the second Hall element 16 are respectively matched with a first magnetic steel 32 and a second magnetic steel 33, the first Hall element 15 is used for detecting a magnetic field and a magnetic field change generated by the first magnetic steel 32, the second Hall element 16 is used for detecting a magnetic field and a magnetic field change generated by the second magnetic steel 33, one magnetic pole of the magnetic steel is close to the Hall element, the Hall element outputs a signal of low potential voltage (low level) or closing, and the magnetic pole of the magnetic field is separated from the Hall element to output a signal of high potential voltage (high level) or opening; the platen sensing device 100 is adapted to various circuits associated with magnetic field variations, thereby commanding the first and second energized circuits in response to magnetic field variations.

As shown in fig. 1 to 3, the induction mechanism 3 has an induction generator (not shown in the drawings) and an insulating housing 36, the induction generator is mounted on the conductive member 31, the conductive member 31 is at least partially located in the insulating housing 36, the insulating housing 36 is in rotating fit with the base 1, the first magnetic steel 32 and the second magnetic steel 33 are both mounted on the bottom of the insulating housing 36, and the induction generator is located between the first magnetic steel 32 and the second magnetic steel 33; the base 1 has a rotation shaft 18, and an insulating housing 36 is in rotation engagement with the rotation shaft 18. The induction generator is used for converting the potential difference generated by the first electrifying loop or the second electrifying loop into an electric signal, and the voltage of the first electrifying loop and the voltage of the second electrifying loop are set to ensure that the potential difference generated by the first electrifying loop and the potential difference generated by the second electrifying loop are obviously different, so that two different electric signals are generated, the induction generator is used for collecting the electric signals and then sending the electric signals to the control terminal, so that the control terminal can identify the opening or closing of the first electrifying loop and the second electrifying loop, and further judge that the pressing plate induction device 100 is in the input state. Meanwhile, the conductive member 31 is installed in the insulating housing 36, and the movement of the induction generator and the conductive member 31 can be achieved only by operating the insulating housing 36.

As shown in fig. 1 to 5, the base 1 includes a first mounting seat 11 and a second mounting seat 12, the first mounting seat 11 and the second mounting seat 12 are respectively mounted on two sides of the rotating shaft 18, a U-shaped or V-shaped notch 40 is formed between the first mounting seat 11 and the second mounting seat 12, and the induction generator and the conductive member 31 are both located in the notch 40. When the induction generator is used, only the insulating shell 36 is required to be stirred, so that the induction generator and the conductive piece 31 are provided with three operation positions, the insulating shell 36 rotates clockwise to be in contact with the second wiring piece 5, and the insulating shell 36 rotates anticlockwise to be in contact with the first wiring piece 4.

As shown in fig. 2, 4 and 5, the first mounting seat 11 or the second mounting seat 12 includes a circuit board 17, a housing 110 and a cover 120, the circuit board 17 is mounted in the housing 110, and the cover 120 is mounted on the housing 110; the first hall element 15 and the second hall element 16 are each mounted on the circuit board 17. By mounting the first hall element 15 and the second hall element 16 on the circuit board 17, the first hall element 15 and the second hall element 16 detect the magnetic fields of the circuit board 17 and the first energizing circuit and the second energizing circuit, and the hall elements obtain the electric energy required for operation through the circuit board 17, so that the first hall element 15 and the second hall element 16 can be ensured to operate normally.

As shown in fig. 1 and 3, the circuit board 17 is provided with a first indicator light 13 and a second indicator light 14, the first indicator light 13 is electrically connected with the first wiring member 4 through the circuit board 17, and the second indicator light 14 is electrically connected with the second wiring member 5 through the circuit board 17; at least part of the first indicator lamp 13 and the second indicator lamp 14 extend out of the cover 120, the first indicator lamp 13 is located at one side of the first hall element 15, and the second indicator lamp 14 is located at one side of the second hall element 16. By providing the first indicator lamp 13 and the second indicator lamp 14 on the circuit board 17, and the first indicator lamp 13 is located at one side of the first hall element 15, and the second indicator lamp 14 is located at one side of the second hall element 16, the first indicator lamp 13 and the second indicator lamp 14 receive the operation instruction through the circuit board 17, and prompt the platen sensing device 100 to operate to the correct position.

As shown in fig. 1, the first wire connecting piece 4 is arranged near the first mounting seat 11, the second wire connecting piece 5 is arranged near the second mounting seat 12, and the first wire connecting piece 4 and the second wire connecting piece 5 are both in columnar structures; the conductive member 31 has a first clamping groove 34 and a second clamping groove 35, the first clamping groove 34 and the second clamping groove 35 are oppositely arranged, the width of the first clamping groove 34 is larger than the outer diameter of the first wiring member 4, and the first clamping groove 34 is used for being matched with the outer wall of the first wiring member 4; the width of the second clamping groove 35 is larger than the outer diameter of the second wiring member 5, and the second clamping groove 35 is used for being matched with the outer wall of the second wiring member 5. When the electric connector is used, the electric conductor 31 is moved, the first clamping groove 34 is clamped with the outer wall of the first wiring piece 4, the electric conductor 31 is communicated with the first wiring piece 4, and the first clamping groove 34 can improve the connection stability of the electric conductor 31 and the first wiring piece 4; and the second clamping groove 35 is clamped with the outer wall of the second wiring piece 5, the conductive piece 31 is communicated with the second wiring piece 5, and the second clamping groove 35 can improve the connection stability of the conductive piece 31 and the second wiring piece 5.

As shown in fig. 2 and 4, the first wire member 4 has a first wire terminal 10, the second wire member 5 has a second wire terminal 20, and the first wire terminal 10 or the second wire terminal 20 is used for conduction with the conductive member 31; the first connection terminal 10 and the second connection terminal 20 are used for connecting a first energizing circuit and a second energizing circuit, respectively.

Example two

As shown in fig. 3, the platen sensing device 100 has a platen 37, the platen 37 has a V-shape, and the platen 37 is located in the notch 40; the first wire connector 4 is mounted on a first end of the top of the pressing plate 37, the second wire connector 5 is mounted on a second end of the top of the pressing plate 37, and the bottom of the pressing plate 37 is mounted on the rotating shaft 18. The pressing plate 37 is arranged in a V shape, so that the pressing plate 37 can be accommodated in the notch 40, the first wiring piece 4 is arranged at the first end of the top of the pressing plate 37, the second wiring piece 5 is arranged at the second end of the top of the pressing plate 37, the positions of the first wiring piece 4 and the second wiring piece 5 on the base 1 are further fixed, and the stability of the pressing plate sensing device 100 is improved.

As shown in fig. 3, the pressing plate 37 is provided with a guide groove 371, the guide groove 371 extends along the moving path of the insulating housing 36, and a guide post (not shown) is provided at the bottom of the insulating housing 36, and the guide post is at least partially located in the guide groove 371 and is slidably engaged with the guide groove 371. The guide posts are at least partially positioned in the guide grooves 371, the guide posts are positioned at the bottom of the insulating housing 36, and the insulating housing 36 is moved to enable the guide posts to be in sliding fit with the guide grooves 371, so that the stability of the insulating housing 36 in rotation is improved; even if the insulating housing 36 and the rotating shaft 18 are loose, the moving position of the conductive member 31 or the induction generator can be prevented from being deviated, and the use stability of the platen induction device 100 can be further improved.

The above examples are also not an exhaustive list based on the utility model, and there may be a number of other embodiments not listed. Any substitutions and modifications made without departing from the spirit of the utility model are within the scope of the utility model.

Claims (10)

1. The pressing plate induction device is characterized by comprising a base, an induction mechanism and a conductive piece, wherein the base is provided with a first wiring piece and a second wiring piece, a first end of the induction mechanism is arranged on the base and is in running fit with the base, the conductive piece is arranged at a second end of the induction mechanism, and the conductive piece is used for being conducted with the first wiring piece and forming a first conduction loop; the conductive piece is used for being conducted with the second wiring piece and forming a second conduction loop;

the second end of the induction mechanism is provided with a magnetic piece, the second end of the induction mechanism is provided with a first moving position, a second moving position and a third moving position, the conductive piece is communicated with the first wiring piece in the first moving position, and the magnetic piece is close to the first electrifying loop; in a second moving position, the first energizing circuit and the second energizing circuit are both in an off state; in a third moving position, the conductive member is in conduction with the second wiring member, and the magnetic member is close to the second energizing circuit.

2. The platen induction device of claim 1, wherein the base has a first hall element and a second hall element, the first hall element is disposed on a first current-carrying loop, the second hall element is disposed on a second current-carrying loop, the first hall element is disposed opposite to the second hall element, the magnetic member has a first magnetic steel and a second magnetic steel, the first magnetic steel and the second magnetic steel are disposed on two sides of the conductive member, respectively, the first magnetic steel is used to cooperate with the first hall element, and the second magnetic steel is used to cooperate with the second hall element.

3. The platen induction device of claim 2, wherein said induction mechanism has an induction generator and an insulating housing, said induction generator being mounted on said conductive member, said conductive member being at least partially positioned within said insulating housing, said insulating housing being in rotational engagement with said base, said first magnetic steel and said second magnetic steel being mounted on the bottom of said insulating housing, said induction generator being positioned between said first magnetic steel and said second magnetic steel; the base is provided with a rotating shaft, and the insulating shell is in rotating fit with the rotating shaft.

4. The platen induction device of claim 3, wherein the base comprises a first mounting base and a second mounting base, the first mounting base and the second mounting base are respectively mounted on two sides of the rotating shaft, a U-shaped or V-shaped notch is formed between the first mounting base and the second mounting base, and the induction generator and the conductive member are both located in the notch.

5. The platen induction device of claim 4, wherein the first mount or the second mount comprises a circuit board, a housing, and a cover, the circuit board being mounted in the housing, the cover being mounted on the housing; the first Hall element and the second Hall element are both mounted on the circuit board.

6. The platen sensing device of claim 5, wherein the circuit board has a first indicator light and a second indicator light, the first indicator light is electrically connected to the first wiring member through the circuit board, and the second indicator light is electrically connected to the second wiring member through the circuit board; the first indicator lamp and at least part of the second indicator lamp extend out of the cover body, the first indicator lamp is located at one side of the first Hall element, and the second indicator lamp is located at one side of the second Hall element.

7. The platen induction device of claim 4, wherein said first wire member is disposed adjacent said first mount, said second wire member is disposed adjacent said second mount, and both said first wire member and said second wire member are in a columnar configuration; the conductive piece is provided with a first clamping groove and a second clamping groove, the first clamping groove and the second clamping groove are oppositely arranged, the width of the first clamping groove is larger than the outer diameter of the first wiring piece, and the first clamping groove is used for being matched with the outer wall of the first wiring piece; the width of the second clamping groove is larger than the outer diameter of the second wiring piece, and the second clamping groove is used for being matched with the outer wall of the second wiring piece.

8. The platen sensor apparatus of claim 4, further comprising a platen having a V-shape, the platen being positioned within the gap; the first wiring piece is installed in the first end at clamp plate top, the second wiring piece is installed in the second end at clamp plate top, the bottom of clamp plate is installed in the pivot.

9. The platen sensor apparatus of claim 8 wherein the platen is provided with a guide slot extending along a path of travel of the insulating housing, the bottom of the insulating housing having a guide post at least partially within the guide slot and in sliding engagement with the guide slot.

10. The platen induction device according to claim 7 or 8, wherein the first wire member has a first wire terminal, the second wire member has a second wire terminal, and the first wire terminal or the second wire terminal is for conduction with the conductive member.