CN220271505U - Device for passively measuring working state of relay and switch equipment - Google Patents

Abstract

The utility model discloses a device for passively measuring the working state of a relay and a switch device, wherein the device for marginless measurement of the working state of the relay comprises a passive measuring piece, wherein the passive measuring piece is suitable for being stopped at a first position when a power supply is not connected and the relay is in a non-working state, and is stopped at a second position under the electromagnetic influence of the relay when the power supply is not connected and the relay is in the working state; the passive measuring piece can be observed at the first position and the second position, the observed states are different, the passive measuring piece can be obtained through direct light-passing observation, and the passive measuring piece can be observed through a communication power supply just like a Hall switch.

Description

Device for passively measuring working state of relay and switch equipment

Technical Field

The utility model relates to the field of relay detection devices, in particular to a device for passively measuring the working state of a relay and switching equipment.

Background

The prior method is used for collecting the working state of the relay, and the problems of damage to the original circuit or components and complicated operation exist usually by directly contacting with the contacts of the relay or measuring the coil current of the relay. In the prior art, the magnetic leakage phenomenon of a relay is usually utilized, and the relay is measured through a Hall switch, and the principle is that when a metal or semiconductor sheet with current is vertically placed in a magnetic field, potential difference is generated at two ends of the sheet, however, as the Hall switch needs to flow current, the reaction can occur under the magnetic leakage, and the current is relatively wasted due to active measurement.

Disclosure of Invention

The utility model aims to overcome the defects or problems in the background art and provide a device for passively measuring the working state of a relay and a switch device.

To achieve the above object, the present utility model and its preferred embodiments adopt the following technical solutions but the embodiments are not limited to the following solutions:

in one aspect, an apparatus for passively measuring an operating state of a relay adapted to produce electromagnetic waves in the operating state includes

The passive measuring piece is suitable for being parked at a first position when the power supply is not connected and the relay is in an inactive state, and being parked at a second position under the electromagnetic influence of the relay when the power supply is not connected and the relay is in an active state; the passive measurement member is observable in both the first and second positions and the observed state is different.

The second scheme is based on the first scheme, and the passive measuring device further comprises a shell and a resetting piece, wherein the passive measuring piece is a magnetic piece; the magnetic piece is rotationally connected with the shell around a first axis, is suitable for being stopped at a first position when the relay is in an inactive state, and is rotated by the first position and stopped at a second position under the electromagnetic influence of the relay when the relay is in an active state;

the return member is mounted to the housing and applies a force to the magnetic member that rotates from the second position toward the first position to cause the magnetic member to rest in the first position when the relay is in the rest state.

According to a third scheme, based on the second scheme, the reset piece comprises a magnet, and magnetic force generated by the magnet enables the magnetic piece to stop at a first position when the relay is in an inactive state; and the magnetic force applied to the magnetic piece is larger than the magnetic force applied to the magnetic piece by the magnet when the relay is in an operating state.

According to the fourth scheme, based on the third scheme, the reset piece further comprises a screw-connection piece, the magnet is fixed at the front end of the screw-connection piece, and the screw-connection piece is in screw-connection with the shell so that the magnet is close to or far away from the magnetic piece along the direction perpendicular to the first axis.

In a fifth aspect, based on the third or fourth aspect, the magnetic force applied by the magnet to the magnetic member is greater than a sum of magnetic forces applied to the magnetic member generated when geomagnetism and the relay are not attracted.

The magnetic part is arranged in the installation cavity and is provided with a working mark and a non-working mark; when the magnetic piece is at the first position, the observation hole corresponds to the non-working mark, and when the magnetic piece is at the second position, the observation hole corresponds to the working mark.

The seventh scheme is based on the sixth scheme, and the relay further comprises a light emitting piece and a triggering piece, wherein the triggering piece is installed on the shell and triggered to confirm that the relay is in an inactive state when the magnetic piece is in the first position, and triggered to confirm that the relay is in an active state when the magnetic piece is in the first position; the light-emitting piece is suitable for emitting light, the triggering piece is a receiving diode suitable for receiving the light emitted by the light-emitting piece, and the triggering piece and the light-emitting piece are respectively arranged at two ends of the magnetic piece; the magnetic part is provided with a light-passing hole, and when the magnetic part is stopped at the first position, the light-passing hole is staggered with the luminous part; when the magnetic piece is stopped at the second position, the light rays emitted by the light emitting piece pass through the light passing hole and then are received by the trigger piece.

According to the eighth scheme, based on the seventh scheme, the number of the light-passing holes and the number of the working marks are two, the two light-passing holes are symmetrically arranged along the first axis, the two working marks are symmetrically arranged along the first axis, and the trigger piece and the light-emitting piece are identical in number and in one-to-one correspondence with the light-passing holes.

According to the ninth scheme, based on the first scheme, the passive measuring piece is a reed pipe, the reed pipe comprises a transparent body and two soft magnetic sheets arranged in the transparent body, the two soft magnetic sheets are mutually separated at a first position, and the two soft magnetic sheets are mutually attached at a second position.

The tenth scheme is a switching device, which comprises a relay and the device for passively measuring the working state of the relay according to any one of the first to ninth schemes, wherein the device for measuring the working state of the relay is arranged in an electromagnetic range generated when the relay is in the working state.

As can be seen from the above description of the present utility model and the preferred embodiments thereof, compared with the prior art, the technical solution of the present utility model and the preferred embodiments thereof have the following beneficial effects due to the following technical means:

1. in a first aspect and in a preferred embodiment, a device for passively measuring the operating state of a relay, the passive measurement element being adapted to rest in a first position when the relay is not in an on state and to rest in a second position when the relay is in an off state and is subject to electromagnetic effects generated by the relay; the passive measuring piece can be observed when in the first position and the second position, and the observed states are different, the passive measuring piece can be obtained through direct light-on observation, and can be observed through a communication power supply just like a Hall switch, so that more electricity is saved.

2. In a second scheme and a preferred embodiment, the magnetic element resetting device comprises a shell and a magnetic element resetting piece; the shell is used for installing the magnetic part and the reset part; the magnetic piece is connected with the shell in a rotating mode around the first axis, the magnetic piece is suitable for stopping at a first position when the relay is in an unoperated state, and the magnetic piece rotates from the first position and stops at a second position under the electromagnetic influence of the relay, so that a user can confirm that the relay is in the unoperated state and the operating state through the rotating angle of the magnetic piece. The reset piece applies force to the magnetic piece, which rotates from the second position towards the first position, so that the magnetic piece is stopped at the first position when the relay is in the non-working state, and thus, the relay is in the non-working state by accident, even if the relay is known, the operation is simpler in a contact mode, and the original circuit or components are not damaged.

3. In the third scheme and the preferred embodiment, the magnetic force generated by the magnet enables the magnetic piece to stop at the first position when the relay is in the non-working state, the magnetic force applied to the magnetic piece when the relay is in the working state is larger than the magnetic force applied to the magnetic piece by the magnet, and the magnetic piece is reset through the magnet, so that the relay is simple and convenient.

4. In scheme IV and preferred embodiment, reset piece still includes the spiro union spare, and magnet is fixed in the front end of spiro union spare, and spiro union spare and casing spiro union are close to or keep away from the magnetic disc in order to make magnet along the direction of perpendicular to first axis to can adjust the magnetic force size that magnet produced to the magnetic disc, in order to make things convenient for the relay during operation, the magnetic part can rotate.

5. In the fifth and preferred embodiments, the magnetic force applied by the magnet to the magnetic member is greater than the sum of the magnetic force applied to the magnetic member when geomagnetism and the relay are not attracted, and since the magnetic disk is also affected by the geomagnetism, the magnetic force of the magnet needs to be greater than the geomagnetism, so that the magnetic disk is prevented from rotating due to the influence of the geomagnetism. When the voltage is insufficient, although the relay is not attracted (false attracted state), the relay can attract only by 24v, when the external reason causes that only 12v is actually supplied, the relay does not work actually although a magnetic field is generated, if the magnetic force of the magnetic leakage in the state can cause the magnetic part to rotate to the second position, misjudgment exists.

6. In a sixth and preferred embodiment, the housing is provided with an installation cavity and an observation hole communicated with the installation cavity, and the magnetic part is arranged in the installation cavity and is provided with a working mark and a non-working mark; when the magnetic part is at the first position, the observation hole corresponds to the non-working mark, and when the magnetic part is at the second position, the observation hole corresponds to the working mark, so that the observation and the discrimination can be realized through direct simple symbol human eyes.

7. In a seventh and preferred embodiment, the light emitting element is adapted to emit light, the triggering element is a receiving diode adapted to receive the light emitted by the light emitting element, and the triggering element and the light emitting element are respectively disposed at two ends of the magnetic element; the magnetic part is provided with a light-passing hole, when the magnetic part is stopped at the first position, the light-passing hole is staggered with the luminous part, and the triggering part sends out a signal 0; when the magnetic part is parked at the second position, the light emitted by the light emitting part is received by the triggering part after passing through the light passing hole, the triggering part emits a signal 1, the triggering part is electrically connected with the human-computer interface, the signal emitted by the triggering part is finally displayed through the human-computer interface, a user can know whether the relay is in a working state at the moment or not, and the relay can be output in an active mode and can be monitored remotely.

8. In the eighth scheme and the preferred embodiment, the magnetic piece comprises a magnetic rotating piece and a rotary table, the magnetic rotating piece is in rotation stopping connection with the rotary table, one of the magnetic rotating piece and the rotary table is in rotation connection with the shell, and the rotary table is provided with a working mark and a non-working mark, so that the magnetic piece is manufactured separately and is convenient to process.

9. In the ninth and preferred embodiments, by setting two light passing holes and a working mark, accurate judgment can be realized no matter the N direction of the relay is downward or upward, and the direction of the current of the relay coil is not needed.

10. The device for measuring the working state of the relay is arranged in an electromagnetic range generated when the relay is in the working state, and has the technical effect brought by the device for measuring the working state of the relay.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of an apparatus for measuring the operating state of a relay in an inactive state according to an embodiment;

fig. 2 is a schematic diagram of a switching device when the relay is in a non-operating state according to an embodiment;

fig. 3 is a front view of a device for measuring the working state of a relay when the relay is in the working state according to the embodiment

Fig. 4 is a schematic diagram of a switching device when the relay is in an operating state according to an embodiment;

fig. 5 is a schematic structural diagram of the triggering member, the light emitting member, and the turntable when the relay is in the working state in the embodiment;

fig. 6 is a schematic diagram of a switching device when the relay is in an operating state according to the preferred embodiment in the first embodiment;

fig. 7 is another schematic diagram of the switching device when the relay is in an operating state according to the preferred embodiment in the first embodiment.

The main reference numerals illustrate:

a housing 1 and a mounting cavity 11; a viewing aperture 12; a threaded hole 13; a magnetic member 2; a magnetic rotating member 21; a turntable 22; light-passing hole 221, work mark 222; a non-working identification 223; a trigger 3 and a reset 4; a magnet 41; a screw 42; a light emitting member 5; and a relay 6.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Referring to fig. 1 to 5, the switching device includes a relay 6 and a means for measuring the operating state of the relay 6, the means for measuring the operating state of the relay 6 being installed in an electromagnetic range generated when the relay 6 is in the operating state. The switching device can be used in elevators or other situations where a relay 6 is needed.

In the present embodiment, the relay 6 does not generate electromagnetic force in the non-energized state, i.e., in the non-operating state, and, for example, fig. 4, when the relay 6 is energized, i.e., in the operating state, a magnetic force is generated in the N direction.

Referring to fig. 1 to 4, the device for measuring the operating state of the relay includes a housing 1, a passive measuring member, a triggering member 3, a resetting member 4, and a light emitting member 5.

Referring to fig. 2 and 4, the housing 1 is provided with a mounting chamber 11, an observation hole 12 and a screw hole 13, the observation hole 12 and the screw hole 13 are both communicated with the mounting chamber 11, the observation hole 12 is provided on the front surface of the housing 1, and the screw hole 13 is provided on the side surface of the housing 1.

The passive measuring piece is a magnetic piece 2, the magnetic piece 2 is arranged in the installation cavity 11 to realize protection, the magnetic piece 2 is rotationally connected with the shell 1 around a first axis, and the first axis is perpendicular to the front surface of the shell 1; the magnetic member 2 is adapted to rest in a first position when the relay 6 is in the inactive state and to be rotated by the first position and to rest in a second position under the electromagnetic influence of the relay 6 when the relay 6 is in the inactive state.

Specifically, the magnetic member 2 includes a magnetic rotating member 21 and a turntable 22, and one of the magnetic rotating member 21 and the turntable 22 is rotatably connected with the housing 1, thereby realizing the assembly of the magnetic member 2 and preventing the falling off. The magnetic rotating piece 21 is in rotation stopping connection with the turntable 22, and the rotation stopping connection mode can be screw connection or plug connection and match with a non-rotating column through a non-rotating hole, for example, the non-rotating hole is triangular, square or bar-shaped; through the rotation stopping connection of the two, when the magnetic rotating piece 21 rotates under the action of magnetic force, the turntable 22 is driven to rotate together. The turntable 22 is provided with a light passing hole 221, a working mark 222 and a non-working mark 223, when the magnetic part 2 is in the first position, the observation hole 12 corresponds to the non-working mark 223, so that a user can observe the non-working mark 223 through the observation hole 12, when the magnetic part 2 is in the second position, the observation hole 12 corresponds to the working mark 222, so that the user can observe the working mark 222 through the observation hole 12, and in the embodiment, the working mark 222 and the non-working mark 223 are respectively represented by an on state and an off state, as shown in fig. 1 and 3. In this embodiment, the turntable 22 is made of a non-light transmissive material.

As shown in fig. 5, the triggering element 3 is mounted on the housing 1, in this embodiment, the triggering element 3 is also disposed in the mounting cavity 11, and is triggered to confirm that the relay 6 is in an inactive state when the magnetic element 2 is in the first position, and is triggered to confirm that the relay 6 is in an active state when the magnetic element 2 is in the first position, in this embodiment, the triggering element 3 and the light emitting element 5 cooperate to realize triggering, wherein the light emitting element 5 is suitable for emitting light, the triggering element 3 is a receiving diode suitable for receiving the light emitted by the light emitting element 5, the triggering element 3 and the light emitting element 5 are respectively disposed at two ends of the magnetic element 2, in this embodiment, the triggering element 3 and the light emitting element 5 are respectively disposed at two sides of the turntable 22 in a direction parallel to the first axis, when the magnetic element 2 is stopped at the first position, the light-passing hole 221 is staggered with the light emitting element 5, and since the turntable 22 is made of a non-light-transmitting material, at this time, the light emitted by the light emitting element 5 is not intended to be received by the triggering element 3 through the light emitting element 3, and the signal "0" is emitted by the triggering element 3. When the magnetic piece 2 is stopped at the second position, the light-passing hole 221 corresponds to the light-emitting piece 5, the light emitted by the light-emitting piece 5 is received by the triggering piece 3 after passing through the light-passing hole 221, and the triggering piece 3 emits a signal of 1; the trigger piece 3 is electrically connected with the human-computer interface, and the signal sent by the trigger piece 3 is finally displayed through the human-computer interface, so that a user can know whether the relay 6 is in a working state at the moment.

The return element 4 is mounted to the housing 1, the return element 4 applying a force to the magnetic element 2 which rotates from the second position towards the first position to bring the magnetic element 2 to rest in the first position when the relay 6 is in the rest state.

Specifically, in this embodiment, the reset element 4 includes a magnet 41 and a screw element 42, the magnet 41 is fixed at the front end of the screw element 42, and the screw element 42 is screwed with the threaded hole 13 of the housing 1 so that the magnet 41 approaches or departs from the magnetic disk along the direction perpendicular to the first axis, so as to adjust the magnetic force generated by the magnet 41 on the magnetic disk, so that the magnetic element 2 can rotate when the relay 6 works. When the relay 6 is not in operation, the magnetic force generated by the magnet 41 causes the magnetic member 2 to rest in the first position.

The magnetic force applied to the magnetic material 2 by the magnet 41 is larger than the sum of the geomagnetism and the magnetic force applied to the magnetic material 2 when the relay 6 is not attracted. Since the magnetic disk is also affected by the geomagnetism, it is necessary to make the magnetic force of the magnet 41 larger than that of the geomagnetism, so as to prevent the magnetic disk from rotating due to the influence of the geomagnetism. When the voltage is insufficient, although the relay 6 is not attracted (in a pseudo-attracted state), the relay 6 can be attracted only by 24v, when the relay 6 is not actually operated due to the fact that only 12v is actually supplied by an external reason, although a magnetic field is generated, if the magnetic force of the magnetic flux leakage in the state can cause the magnetic member 2 to rotate to the second position, misjudgment exists, and the adjustment can be realized by the screw member 42.

In this embodiment, the magnetic field intensity direction generated by the relay 6 is perpendicular to the magnetic field intensity direction generated by the magnet 41, and is more convenient to adjust and use, as shown in fig. 2, when the relay 6 does not work, no current passes through the coil, the relay 6 does not generate magnetic force, at this time, the magnetic element 2 is only affected by the magnetic force of the reset element 4, the N level of the magnet 41 is closer to the magnetic rotating element 21 of the magnetic element 2 than the S level of the magnet 41, and attracts the S level of the magnetic rotating element 21, so that the magnetic rotating element 21 automatically turns to the direction consistent with the magnetic force lines generated by the magnet 41, the trigger element 3 sends a signal of "0", and the user observes "off"; referring to fig. 4, when the relay 6 is in the operating state, the coil of the relay 6 is energized to generate electromagnetic force, and since the magnetic force applied to the magnetic member 2 is greater than the magnetic force applied to the magnetic member 2 by the magnet 41 in the operating state of the relay 6, the magnetic member 2 will rotate to a direction consistent with the magnetic force lines generated by the relay 6, the S of the magnetic rotating member 21 faces upward, the trigger member 3 sends out a signal "1", and the user observes "on".

Alternatively, the observation hole 12 may also correspond to the magnetic rotating member 21, and determine whether the relay 6 is operated by determining the rotation angle of the magnetic rotating member 21, and if the magnetic rotating member 21 is observed to be horizontal, the relay 6 is in a non-operating state, as shown in fig. 2; if the magnetic rotator 21 is observed to be vertical, the relay 6 is in an operating state as shown in fig. 4.

Compared with the prior art, the magnetic part 2 is suitable for stopping at the first position when the relay 6 is in the non-working state, and triggers the trigger part 3 to confirm that the relay 6 is in the non-working state, and when the electromagnetic influence generated by the relay 6 rotates from the first position and stops at the second position, triggers the trigger part 3 to confirm that the relay 6 is in the working state, so that a user can confirm that the relay 6 is in the non-working state and the working state. The force applied by the reset element 4 to the magnetic element 2, which rotates from the second position towards the first position, is such that the magnetic element 2 rests in the first position when the relay 6 is in the inactive state, so that the inactive state of the relay 6 can be known even if it happens accidentally, and this way is not through a contact way, the operation is simpler, without damaging the original circuit or components.

In this embodiment, as shown in fig. 6 or fig. 7, the number of the light-passing holes 221 and the working marks 222 is two, the two light-passing holes 221 are symmetrically arranged along the first axis, the two working marks 222 are symmetrically arranged along the first axis, the number of the triggering member 3 and the light-emitting member 5 are the same as the number of the light-passing holes 221 and are in one-to-one correspondence, because the rotation direction of the magnetic member 2 is related to the magnetic force line direction generated by the relay 6, if only one light-passing hole 221 and one working mark 222 are arranged, taking fig. 5 as an example, if the N direction of the relay 6 is downward, the light-passing hole 221 is located below, and at the moment, the triggering member 3 cannot receive light, and the working marks 222 cannot be observed, so by arranging the two light-passing holes 221 and the working marks 222, no matter whether the N direction of the relay 6 is downward or upward, accurate judgment can be realized, and no direction of coil current of the relay 6 is used.

In the second embodiment, unlike the first embodiment, the passive measuring element is a reed pipe, and in this embodiment, the reed pipe includes a transparent body and two soft magnetic pieces disposed in the transparent body, when the relay 6 works, the two soft magnetic pieces rest at the second position and are attached to each other under electromagnetic influence generated by the relay 6, and when the relay 6 does not work, the two soft magnetic pieces do not receive magnetic force, and the two soft magnetic pieces rest at the first position and are separated from each other. The relay can reset by self, the scheme is simpler, and the magnetic leakage of the relay 6 is generally about 3mT-4mT, so that a high-sensitivity reed pipe is needed, and the reed pipe can be arranged in the installation cavity 11 of the shell 1 and corresponds to the observation hole 12. The defect is that the relay is not adjustable, when the relay 6 is not in a suction state (false suction state), two soft magnetic sheets are mutually attached, misjudgment exists, and the precision is poorer than that of the embodiment.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model. Modifications, equivalents, and other improvements to the embodiments of the utility model or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the utility model or the teachings of the embodiments, are intended to be included within the scope of the utility model, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.

Claims (10)

1. A device for passively measuring the operating state of a relay, said relay (6) being adapted to generate an electromagnetic field in the operating state, characterized in that: comprising

The passive measuring piece is suitable for being stopped at a first position when the power supply is not connected and the relay (6) is in an unoperated state, and being stopped at a second position under the electromagnetic influence of the relay (6) when the power supply is not connected and the relay (6) is in an operational state; the passive measurement member is observable in both the first and second positions and the observed state is different.

2. A device for passively measuring the operating state of a relay according to claim 1, wherein: the passive measuring device also comprises a shell (1) and a resetting piece (4), wherein the passive measuring piece is a magnetic piece (2); the magnetic piece (2) is rotationally connected with the shell (1) around a first axis, is suitable for being stopped at a first position when the relay (6) is in an unoperated state, and is rotated by the first position and stopped at a second position under the electromagnetic influence of the relay (6) when the relay (6) is in an operating state;

the return element (4) is mounted to the housing (1) and applies a force to the magnetic element (2) which rotates from the second position towards the first position to bring the magnetic element (2) to rest in the first position when the relay (6) is in the rest state.

3. A device for passively measuring the operating state of a relay according to claim 2, wherein: the reset piece (4) comprises a magnet (41), and the magnetic force generated by the magnet (41) enables the magnetic piece (2) to be stopped at a first position when the relay (6) is in a non-working state; the magnetic force applied to the magnetic element (2) is greater than the magnetic force applied to the magnetic element (2) by the magnet (41) in the relay operating state.

4. A device for passively measuring the operating state of a relay according to claim 3, wherein: the resetting piece (4) further comprises a screw-connection piece (42), the magnet (41) is fixed at the front end of the screw-connection piece (42), and the screw-connection piece (42) is in screw connection with the shell (1) so that the magnet (41) is close to or far away from the magnetic piece (2) along the direction perpendicular to the first axis.

5. A device for passively measuring the operating state of a relay according to claim 3 or 4, wherein: the magnetic force exerted by the magnet (41) on the magnetic member (2) is larger than the sum of the geomagnetism and the magnetic force exerted on the magnetic member (2) when the relay (6) is not attracted.

6. A device for passively measuring the operating state of a relay according to claim 2, wherein: the shell (1) is provided with a mounting cavity (11) and an observation hole (12) communicated with the mounting cavity (11), and the magnetic piece (2) is arranged in the mounting cavity (11) and is provided with a working mark (222) and a non-working mark (223); when the magnetic piece (2) is at the first position, the observation hole (12) corresponds to the non-working mark (223), and when the magnetic piece (2) is at the second position, the observation hole (12) corresponds to the working mark (222).

7. A device for passively measuring the operating state of a relay according to claim 6, wherein: the relay control device further comprises a light emitting piece (5) and a triggering piece (3), wherein the triggering piece (3) is arranged on the shell (1) and is triggered to confirm that the relay (6) is in an inactive state when the magnetic piece (2) is in a first position, and is triggered to confirm that the relay (6) is in an active state when the magnetic piece (2) is in the first position; the light emitting piece (5) is suitable for emitting light, the triggering piece (3) is a receiving diode suitable for receiving the light emitted by the light emitting piece (5), and the triggering piece (3) and the light emitting piece (5) are respectively arranged at two ends of the magnetic piece (2); the magnetic piece (2) is provided with a light-passing hole (221), and when the magnetic piece (2) is stopped at the first position, the light-passing hole (221) is staggered with the luminous piece (5); when the magnetic piece (2) is stopped at the second position, the light emitted by the light emitting piece (5) is received by the trigger piece (3) after passing through the light passing hole (221).

8. A device for passively measuring the operating state of a relay according to claim 7, wherein: the number of the light-passing holes (221) and the number of the working marks (222) are two, the two light-passing holes (221) are symmetrically arranged along a first axis, the two working marks (222) are symmetrically arranged along the first axis, and the trigger piece (3) and the light-emitting piece (5) are the same in number and in one-to-one correspondence with the light-passing holes (221).

9. A device for passively measuring the operating state of a relay according to claim 1, wherein: the passive measuring piece is a reed pipe, the reed pipe comprises a transparent body and two soft magnetic sheets arranged in the transparent body, the two soft magnetic sheets are mutually separated at a first position, and the two soft magnetic sheets are mutually attached at a second position.

10. A switching device, characterized by: device comprising a relay (6) and a passive measuring relay operating state according to any of claims 1-9, said measuring relay operating state device being mounted in the electromagnetic range of said relay (6) generated in the operating state.