CN209784499U - Disconnecting link state detection device - Google Patents
Disconnecting link state detection device Download PDFInfo
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- CN209784499U CN209784499U CN201920236672.0U CN201920236672U CN209784499U CN 209784499 U CN209784499 U CN 209784499U CN 201920236672 U CN201920236672 U CN 201920236672U CN 209784499 U CN209784499 U CN 209784499U
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Abstract
The utility model provides a switch state detection device, include: the induction component is arranged on the disconnecting link transmission mechanism and moves along with the disconnecting link transmission mechanism; the disconnecting link transmission mechanism is used for linking the disconnecting link body to carry out switching-on and switching-off operation on the disconnecting link body and has a switching-on and switching-off position corresponding to the switching-on and switching-off state of the disconnecting link body; the induction component comprises an induction piece; the detection assembly is detachably mounted on the periphery of the opening and closing position of the disconnecting link transmission mechanism and corresponds to the opening and closing position; the detection assembly comprises a detection piece and a state output piece; in the movement process of the disconnecting link transmission mechanism, the detection piece can detect that the sensing piece is close to or far away from the detection piece so as to detect the opening state and/or closing state of the disconnecting link body. The reliable detection of the opening and closing operation of the disconnecting link body is realized, the potential safety hazard is reduced, meanwhile, the on-site confirmation of an operator is not needed, the operation efficiency is improved, the use performances such as the contact characteristic of the disconnecting link body cannot be influenced, and the safety and the reliability are high.
Description
Technical Field
The utility model relates to an electric power safety field especially relates to a switch state detection device.
Background
the isolation knife switch is an electric appliance commonly used in a high-voltage power transmission system and used for switching on and off a circuit, and the basic principle and the process of switching on and off are as follows: the control loop operates the motor to rotate, the moving contact of the disconnecting link is driven to rotate through the corresponding disconnecting link transmission mechanism and is connected with or separated from the fixed contact, the disconnecting link or the closing of the disconnecting link is isolated, and meanwhile, the disconnecting link auxiliary contact outputs a corresponding disconnecting link or closing signal.
The isolation switch has a simple working principle and structure, but has high requirements on working reliability due to large usage amount. However, during the switching-off and switching-on processes, due to the reason of isolating the knife switch, the motor may operate correctly, the auxiliary contact is already in place, and the operating knife switch is not completely in place, which is very easy to cause misoperation accidents. The transformer substation operation specification clearly requires that two different source methods are required for detecting the disconnecting link, namely a main criterion and an auxiliary criterion.
The main criterion is that state nodes such as a travel switch, an auxiliary switch and the like are installed in a control box and are uploaded through a measurement and control device, but the nodes can slip, deform and the like after long-time operation, so that the state of the disconnecting link cannot be reflected completely and truly.
The auxiliary criterion generally includes three methods: the method comprises the steps of manual on-site confirmation, image recognition and installation of a sensor on a conductive arm, but the method has obvious defects. The manual on-site confirmation requires personnel to confirm the opening and closing state of the disconnecting link on site by observing the disconnecting link body or the state indicating mark, and has the problems of large consumption of manpower and material resources and low operation efficiency. The image recognition requires that a camera is adopted to shoot images of the disconnecting link, and a background system is used for image recognition analysis to obtain a state result which is used as an auxiliary criterion for the sequence control host, so that the problems of high use requirement, high cost and low efficiency exist; the conductive arm mounting sensor adopts a pressure sensor to detect the contact pressure of the moving contact and the static contact, and the contact pressure is transmitted in a wireless mode, so that the use performance of the disconnecting link can be influenced.
In conclusion, when the existing isolation knife switch is switched on and switched off, an accurate monitoring means is not available for monitoring whether the knife switch moves in place, so that the problem of misoperation is easily caused, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
therefore, it is necessary to provide a device for detecting the state of the knife switch, which can monitor whether the knife switch is in place or not, in order to solve the problem of misoperation caused by the fact that the knife switch is not in place.
the above purpose is realized by the following technical scheme:
a knife switch state detection device, comprising:
the induction component is arranged on the disconnecting link transmission mechanism and moves along with the disconnecting link transmission mechanism; the disconnecting link transmission mechanism is used for linking the disconnecting link body to carry out switching-on and switching-off operation on the disconnecting link body and has a switching-on and switching-off position corresponding to the switching-on and switching-off state of the disconnecting link body; the induction component comprises an induction piece; and
The detection assembly is detachably arranged on the periphery of the opening and closing position of the disconnecting link transmission mechanism and corresponds to the opening and closing position; the detection assembly comprises a detection piece and a state output piece, the detection piece is electrically connected with the state output piece, and the state output piece is used for outputting the state of the disconnecting link body;
In the movement process of the disconnecting link transmission mechanism, the detection piece can detect that the sensing piece is close to or far away from the detection piece so as to detect the opening state and/or closing state of the disconnecting link body.
In one embodiment, the number of the detection pieces is at least two, and the number of the detection pieces is equal to the number of the opening and closing states of the disconnecting link body;
The setting positions of the at least two detection pieces are in one-to-one correspondence with the opening and closing positions.
In one embodiment, the detection assembly is linear, and at least two detection pieces are arranged linearly and matched with the induction piece at the position of the linear motion part in the disconnecting link transmission mechanism.
In one embodiment, the detection assembly is arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detection pieces are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped and are used for being matched with the induction piece at the position of the rotary motion part in the knife switch transmission mechanism.
in one embodiment, the detection assembly is linear, and at least two detection pieces are arranged linearly and matched with the induction piece at the position of the linear motion part in the disconnecting link transmission mechanism;
The detection components are arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detection components are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped and are used for being matched with the induction component at the position of the rotary motion component in the disconnecting link transmission mechanism.
in one embodiment, the number of the detection pieces is one, and the detection pieces are arranged corresponding to the opening position or the closing position of the opening and closing positions of the knife switch body.
In one embodiment, the detecting element is a reed switch or a hall element, and the sensing element is a magnetic element; or, the detecting piece is a position sensor, and the sensing piece is a sensing piece;
When the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, the detection part at the corresponding position can detect the induction part so as to detect the switching-on and switching-off states of the disconnecting link body.
In one embodiment, the detecting member is a tact switch, and the sensing member is a touch member;
When the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, the touch part touches the light touch switch at the corresponding position so as to detect the switching-on and switching-off states of the disconnecting link body.
In one embodiment, the detecting element is an emitter and a receiver, and the sensing element is a reflecting element;
When the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, signals sent by the transmitter can be reflected to the receiver through the reflecting piece so as to detect the switching-on and switching-off states of the disconnecting link body;
the transmitter emits an optical, electrical or acoustic signal.
In one embodiment, the sensing assembly further comprises a sensing bracket for mounting the sensing element, the sensing bracket being adapted to be mounted to the knife gate transmission mechanism;
The induction support is fixed on the disconnecting link transmission mechanism in a thread fixing mode, a hoop fastening mode, a hoop mode or an adhesive mode.
After the technical scheme is adopted, the utility model discloses following technological effect has at least:
the utility model discloses a switch state detection device, the response subassembly through switch drive mechanism is in the divide-shut brake position and cooperates with the determine module, realize the detection of switch body divide-shut brake state, switch drive mechanism drives the in-process that switch body motion carries out the divide-shut brake operation, the determine module can be corresponding with switch drive mechanism's divide-shut brake position, at this moment, the determine module can detect the response piece and be close to or keep away from the determine module, with the branch state and/or the state that closes that detect the switch body, realize the detection of switch body divide-shut brake state. The problem of the maloperation that whether effectual solution present switch motion targets in place lacks the accurate monitoring means and leads to is solved, the reliable detection of switch body divide-shut brake operation is realized with the detection component cooperation of divide-shut brake position week side through the response subassembly of switch drive mechanism, whether target in place in order to monitor the motion of switch body, reduce the potential safety hazard, and simultaneously, need not operating personnel to confirm to the scene, the material resources of using manpower sparingly, reduce cost improves operating efficiency, and, still can not influence the contact characteristic of switch body, performance such as discharge characteristic, security and reliability are high.
Drawings
Fig. 1 is a schematic view of the knife switch state detection device of the present invention cooperating with a linear motion component;
Fig. 2 is a schematic view of the disconnecting link state detecting device of the present invention cooperating with a rotating component;
FIG. 3 is a schematic layout view of a detecting component in the knife switch status detecting apparatus shown in FIG. 1;
FIG. 4 is a schematic layout view of a detecting component in the knife switch status detecting apparatus shown in FIG. 2;
Fig. 5 is a schematic diagram of a sensing element in the knife switch state detecting device shown in fig. 1 and 2.
wherein:
100-knife switch state detection device;
110-a sensing component;
111-a sensing member;
112-an induction support;
120-a detection component;
121-a detection member;
122-state output;
123-a mount;
200-a knife switch transmission mechanism;
210-a linearly moving part;
220-rotating moving parts.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following embodiments are described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
the numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
in the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
referring to fig. 1 to 5, the present invention provides a device 100 for detecting the status of a disconnecting link. The knife switch state detection device 100 is used for detecting the opening and closing state of a knife switch body in electrical equipment. It should be understood that the electrical device herein refers to a circuit breaker, a disconnecting link mechanism box of a substation, or a GIS (GAS INSULATED SWITCHGEAR), etc. Of course, in other embodiments of the present invention, the device 100 for detecting the status of the disconnecting link may also be applied to other devices using an isolation disconnecting link. The electric device includes a fixed portion and a moving portion. The fixed part refers to a structure which is static and does not move in the electrical equipment, such as a shell, a bracket and the like of the electrical equipment. The moving part refers to a disconnecting link transmission mechanism 200 in the electrical equipment, and the disconnecting link transmission mechanism 200 can drive the disconnecting link body to perform switching on and off operations.
The utility model discloses a switch state detection device 100 can detect the divide-shut brake state of switch body, realizes the reliable detection of switch body divide-shut brake operation to whether the motion of monitoring switch body targets in place, reduces the potential safety hazard, simultaneously, need not operating personnel to on-the-spot affirmation, the material resources of using manpower sparingly improve operating efficiency, and, still can not influence performance such as contact characteristic, the discharge characteristic of switch body, security and reliability height.
In one embodiment, the device 100 for detecting the status of the knife switch includes a sensing element 110 and a detecting element 120. The sensing component 110 is disposed on the knife switch transmission mechanism 200 of the electrical device and moves along with the knife switch transmission mechanism 200. The disconnecting link transmission mechanism 200 is used for linking the disconnecting link body to perform switching-on and switching-off operations on the disconnecting link body, and has a switching-on and switching-off position corresponding to the switching-on and switching-off state of the disconnecting link body. The detection component 120 is detachably mounted on the periphery of the opening and closing position of the disconnecting link transmission mechanism 200 and is arranged corresponding to the opening and closing position one by one.
It can be understood that the detecting components 120 are mounted on the fixed portion of the peripheral side of the knife switch transmission mechanism 200, and respectively correspond to the opening and closing positions. That is, when the knife switch transmission mechanism 200 drives the knife switch body to perform opening and/or closing operations, the detection component 120 may correspond to the sensing component 110 at the opening and closing position. That is, when the switch transmission mechanism 200 drives the switch body to perform the separate operation, the sensing component 110 on the switch transmission mechanism 200 may correspond to the detecting component 120; or when the switch transmission mechanism 200 drives the switch body to close, the sensing component 110 on the switch transmission mechanism 200 may correspond to the detection component 120; or when the knife switch transmission mechanism 200 drives the knife switch to perform the opening and closing operations, the sensing component 110 on the knife switch transmission mechanism 200 may correspond to the detecting component 120.
Therefore, when the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform the opening and/or closing operation, the detection component 110 can accurately correspond to the sensing component 110 at the opening and closing position to detect the opening and closing state of the disconnecting link body. Specifically, when the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform the switching on and off operation, the sensing component 110, which can detect the switching on and off position, of the detection component 120 is close to or away from the detection component 120, so as to detect the switching on and off state of the disconnecting link body, ensure that the disconnecting link body moves in place, and avoid misoperation.
Since the switch body is a high-voltage charged component, if the detection assembly 120 is directly disposed on the switch body, the operational performances such as contact characteristics and discharge characteristics of the switch body can be reduced, and the reliability and safety of the switch body can be affected. Therefore, the utility model discloses a switch state detection device 100 sets up response subassembly 110 on electrical equipment's switch drive mechanism 200, and like this, response subassembly 110 can not influence performance such as contact characteristic, the discharge characteristic of switch body, guarantees the reliability and the security of switch body work. Meanwhile, after the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform switching-on and switching-off operation movement in place, the detection component 120 is arranged at the position, corresponding to the sensing component 110, of the fixed part of the electrical equipment, so that the state of the disconnecting link body can be detected through the cooperation of the sensing component 110 and the detection component 120 after the disconnecting link body moves in place, the reliable detection of the movement of the disconnecting link body is realized, whether the movement of the disconnecting link body is in place or not is monitored, misoperation is avoided, and potential safety hazards are reduced.
Specifically, the sensing assembly 110 includes a sensing element 111. The detection assembly 120 comprises a detection piece 121 and a state output piece 122, wherein the detection piece 121 is electrically connected with the state output piece 122, and the state output piece 122 is connected with a control piece of the electrical equipment. During the movement of the knife switch transmission mechanism 200, the detecting element 121 can detect that the sensing element 111 is close to or far away from the detecting element 121, so as to detect the opening state and/or closing state of the knife switch body.
when the knife switch transmission mechanism 200 drives the knife switch body to perform the switching on and off operations, the detection element 121 can detect the position relationship of the sensing element 111 relative to the detection element 121, such as the proximity or the distance of the sensing element 111 to the detection element 121, and feed back the position relationship to the state output element 122. The state detector 121 determines the state of the switch body according to the sensor 111 detected by the detector 121, and outputs the state of the switch body to a controller of the electrical device.
optionally, the state output element 122 is a state collecting and outputting module. The status output 122 is connected to the control by using a hard-wired or communication means. The communication method includes a wired communication method and a wireless communication method. The wired communication mode includes LIN bus technology, 485 communication technology, and the like, and CAN also adopt I2C, CAN, UART, and the like according to actual situations.
Optionally, the control element is an industrial personal computer or an upper computer, or the control element is provided with a display screen. The on-off state of the disconnecting link body can be displayed through the control piece, so that the state of the disconnecting link body of a user is prompted, the user can operate conveniently according to the on-off state of the disconnecting link body, and the safety is guaranteed.
the utility model discloses a switch state detection device 100 is in the divide-shut brake position and cooperatees with detection piece 121 through switch drive mechanism 200's response piece 111, realizes the collection of switch body divide-shut brake state to in transmitting the divide-shut brake state of switch body to electrical equipment's control through state output piece 122. The problem of the maloperation that the present switch motion can not the bit lead to is solved effectually, the reliable detection of switch body divide-shut operation is realized to response subassembly 110 through switch drive mechanism 200 and the detecting element 120 of divide-shut brake position week side to whether the motion of monitoring switch body targets in place, reduce the potential safety hazard, and simultaneously, need not operating personnel to confirm to the scene, the material resources of using manpower sparingly, reduce cost improves operating efficiency, and, still can not influence the contact characteristic of switch body, performance such as discharge characteristic, security and reliability are high.
In an embodiment, the number of the detecting members 121 is at least two, and the number of the detecting members 121 is equal to the number of the opening and closing states of the knife switch body. That is, the number of the detecting members 121 is related to the number of the opening and closing states of the knife switch body, and each detecting member 121 corresponds to one of the opening and closing states of the knife switch body. For example, if the opening state and the closing state of the knife switch body need to be detected, 2 detecting elements 121 are needed; if the three states of opening, closing and grounding of the three-station disconnecting link body need to be detected, 3 detecting pieces 121 are needed.
In addition, the arrangement positions of the at least two detection pieces 121 are arranged in one-to-one correspondence with the opening and closing positions. That is to say, the arrangement positions of the at least two detecting elements 121 respectively correspond to the positions of the sensing element 111 on the knife switch transmission mechanism 200 when the knife switch body is in different opening and closing states. Namely, the sensing element 111 and the detecting element 121 are aligned according to different switch-on/off states of the disconnecting link body, and the sensing element 111 corresponds to the detecting element 121 at each state position of the disconnecting link body. Specifically, when the switch body is opened, the switch transmission mechanism 200 moves to an opening position, and the position of the detection element 121 needs to correspond to the sensing element 111 on the switch transmission mechanism 200 at the opening position. Accordingly, when the switch body is closed, the switch transmission mechanism 200 moves to the switch closing position, and the position of the detection element 121 needs to correspond to the sensing element 111 on the switch transmission mechanism 200 at the switch closing position.
only when the knife switch body is in the on, off or grounding position, the sensing element 111 can be detected by the detecting element 121 in the corresponding position. Thus, when the knife switch transmission mechanism 200 moves to the switch-off position, the sensing piece 111 corresponds to the detecting piece 121 at the switch-off position, and at this time, the detecting piece 121 can detect the sensing piece 111 of the knife switch transmission mechanism 200 at the switch-off position, which indicates that the knife switch body is in the switch-off state. The detecting element 121 transmits the information of the detected sensing element 111 to the state output element 122, and the information is processed by the state output element 122 and then transmitted to the control element. When the knife switch transmission mechanism 200 moves to the switch-on position, and the sensing piece 111 corresponds to the detecting piece 121 at the switch-on position, the detecting piece 121 can detect the sensing piece 111 of the knife switch transmission mechanism 200 at the switch-on position, which indicates that the knife switch body is in the switch-on state. The detecting element 121 transmits the information of the detected sensing element 111 to the state output element 122, and the information is processed by the state output element 122 and then transmitted to the control element.
of course, in other embodiments of the present invention, the number of the detecting elements 121 may be one, and the detecting elements 121 are disposed at the opening position or the closing position corresponding to the opening and closing position of the switch body. At this time, the detecting element 121 can correspond to the on/off state of the switch body. Illustratively, the detecting element 121 corresponds to the separated state of the knife switch body. When the detecting piece 121 detects that the sensing piece 111 of the disconnecting link transmission mechanism 200 is close to the detecting piece 121, indicating that the disconnecting link body is subjected to sub-operation; when the detecting piece 121 detects that the sensing piece 111 of the knife switch transmission mechanism 200 is far away from the detecting piece 121, it indicates that the knife switch body is closed. Therefore, the opening and closing state detection of the disconnecting link body can be realized.
it can be understood that the knife gate transmission mechanism 200 includes a linear motion component 210 and a rotary motion component 220, and since the specific structure and transmission form of the knife gate transmission mechanism 200 are the prior art, detailed description thereof is omitted. The movement of the knife switch body is driven by the cooperation of the linear motion part 210 and the rotary motion part 220. In this case, the sensor 111 may be provided only on the linear motion member 210, the sensor 111 may be provided only on the rotational motion member 220, or the sensor 111 may be provided on both the linear motion member 210 and the rotational motion member 220. The following details are provided:
In one embodiment, the sensing member 111 is provided only on the linear motion member 210. When the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform the switching on and off operation, the linear motion part 210 also performs the linear motion, and the position of the sensing part 111 on the linear motion part 210 is detected by the detecting part 121, so as to judge the state of the disconnecting link body. Specifically, the detecting assembly 120 is linear, and at least two detecting members 121 are arranged in a linear manner and are matched with the sensing member 111 at the position of the linear moving member 210 in the knife switch transmission mechanism 200. Thus, when the switch body performs the switching operation, the sensing pieces 111 on the linear motion component 210 respectively correspond to the detecting pieces 121 at the corresponding positions, and the positions of the switch body are fed back through the detecting pieces 121.
in one embodiment, the sensing member 111 is provided only on the rotational moving member 220. When the knife switch transmission mechanism 200 drives the knife switch body to perform the switching operation, the rotating motion part 220 rotates, and the position of the sensing part 111 on the rotating motion part 220 is detected by the position detecting part 121, so as to determine the state of the knife switch body. Specifically, the detecting assembly 120 is arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detecting elements 121 are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped, and are used for matching with the sensing element 111 at the rotating moving part 220 in the disconnecting link transmission mechanism 200. Illustratively, the detecting member 120 is disposed in a U-shape corresponding to the rotational moving member 220. Thus, when the switch body performs the switching operation, the sensing pieces 111 on the rotary motion component 220 respectively correspond to the detecting pieces 121 at the corresponding positions, and the position of the switch body is fed back through the detecting pieces 121.
in one embodiment, the sensing element 111 is disposed on both the rotational motion component 220 and the linear motion component 210. Specifically, the detecting assembly 120 is linear, and at least two detecting members 121 are arranged in a linear manner and are matched with the sensing member 111 at the position of the linear moving member 210 in the knife switch transmission mechanism 200. The detecting component 120 is arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detecting elements 121 are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped, and are used for matching with the sensing element 111 at the rotating moving part 220 in the knife switch transmission mechanism 200.
Since the cooperation between the sensing element 111 of the linear motion component 210 and the detecting element 121 and the cooperation between the sensing element 111 of the rotational motion component 220 and the detecting element 121 are mentioned above, they are not described herein again. Thus, when one of the sensing pieces 111 cannot be matched with the detecting piece 121 at the corresponding position, the state of the knife switch body can be detected through the other sensing piece 111. For example, when the sensing element 111 on the rotary motion component 220 cannot be detected by the corresponding detecting element 121, the sensing element 111 on the linear motion component 210 can be matched with the detecting element 121 at the corresponding position, so as to ensure reliable detection of the state of the switch body and avoid misoperation. It can be understood that the opening and closing state of the knife switch body can be determined as long as one of the sensing elements 111 can be matched with the detecting element 121 at the corresponding position.
Optionally, the detecting assembly 120 further includes a mounting member 123, and the mounting member 123 is used for carrying the detecting member 121 and the status output member 122. The shape of the mounting member 123 conforms to the arrangement of the sensing assembly 120. For example, when the detecting member 120 is a linear type, the mounting member 123 is a linear type. When the detecting member 120 has an arc shape, the mounting member 123 has an arc shape. Illustratively, the mounting member 123 is a mounting plate.
in an embodiment of the present invention, the detecting element 121 is a reed switch or a hall element, and the sensing element 111 is a magnetic element. When the knife switch transmission mechanism 200 drives the knife switch body to perform the switching on and off operations, the detection part 121 at the corresponding position can detect the sensing part 111 so as to detect the switching on and off states of the knife switch body. Illustratively, the magnetic member is magnetic steel. When the knife switch body is in a switch-off state, a switch-on state or a grounding state, the detection piece 121 corresponding to the sensing piece 111 is communicated with the magnetic piece through magnetic induction to indicate that the knife switch body moves in place, the position information of the sensing piece 111 is transmitted to the state output piece 122 through the detection piece 121, and then the position information of the sensing piece 111 is converted into the state information of the knife switch body by the state output piece 122 and is transmitted to an external control piece.
Of course, the detecting member 121 may be a position sensor, and the sensing member 111 may be a sensing piece. When the knife switch transmission mechanism 200 drives the knife switch body to perform the switching on and off operations, the detection part 121 at the corresponding position can detect the sensing part 111 so as to detect the switching on and off states of the knife switch body.
in one embodiment, the detecting element 121 is a touch switch, and the sensing element 111 is a touch element. When the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform the opening and closing operation, the touch component touches the light touch switch at the corresponding position to detect the opening and closing state of the disconnecting link body. The triggering component may be a protrusion on the knife-switch transmission mechanism 200 or other component capable of triggering the tact switch. When the knife switch body is switched on and off, the touch part can trigger the touch switch at the corresponding position, so that the touch switch outputs a closed state to the state output part 122 and transmits the closed state to an external control part.
in one embodiment, the detecting element 121 is a transmitter and a receiver, and the sensing element 111 is a reflecting element. When the disconnecting link transmission mechanism 200 drives the disconnecting link body to perform the switching on and off operation, a signal sent by the transmitter can be reflected to the receiver through the reflecting piece so as to detect the switching on and off state of the disconnecting link body. When the switch body is switched on and off, the emitter corresponding to the sensing element 111 emits a signal, and the signal is reflected to the corresponding receiver through the sensing element 111 on the switch transmission mechanism 200, so that the receiver outputs a closed state to the state output element 122 and transmits the closed state to an external control element.
Further, the transmitter emits an optical signal, an electrical signal, or a sonic signal. Illustratively, the emitter emits an optical signal. Correspondingly, the transmitter is an infrared transmitting tube, and the receiver is an infrared receiving tube.
in one embodiment, the sensing assembly 110 further comprises a sensing bracket 112, the sensing bracket 112 is used for mounting the sensing element 111, and the sensing bracket 112 is adapted to be mounted to the knife switch transmission mechanism 200. The sensing bracket 112 may facilitate mounting of the sensing element 111 to the knife gate actuator 200. The inductive bracket 112 is fixed to the knife drive mechanism 200 by a screw fastening method, a hoop fastening method, a clip method, or an adhesive method. Optionally, the sensing element 111 is arranged in a bar shape, and the length and the angle of the sensing element are adjusted according to the length and the position of the knife switch transmission mechanism 200.
the utility model discloses a switch state detection device 100 can realize the collection of switch body state, has solved in the same direction as two problem of confirming of accuse operation switch state, helps a key to be in the same direction as the smooth implementation of accuse, moreover, does not need personnel to carry out the state inspection to the scene, has saved manpower and materials, has improved operating efficiency and safety level. Meanwhile, the sensing part 111 is matched with the detecting part 121 at the corresponding position to ensure high detection precision, and whether the disconnecting link body is connected or disconnected in place can be precisely monitored, so that the problem that the contact of a travel switch or an auxiliary switch cannot completely reflect whether the disconnecting link is connected or disconnected in place is solved, and the condition that accidents are caused by the fact that the disconnecting link is not connected or disconnected in place is avoided. And, the response subassembly 110 need not install on the switch body, and high-low pressure is isolated completely, does not receive high-pressure heavy current to influence, and security and reliability are high, do not receive environmental factor to influence, detect the precision height. Furthermore, the utility model discloses an adaptable outdoor open-type equipment of switch state detection device 100 and GIS equipment, various mechanisms of compatible can install with electricity simultaneously, engineering strong adaptability.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A device for detecting the state of a disconnecting link, comprising:
The induction component is arranged on the disconnecting link transmission mechanism and moves along with the disconnecting link transmission mechanism; the disconnecting link transmission mechanism is used for linking the disconnecting link body to carry out switching-on and switching-off operation on the disconnecting link body and has a switching-on and switching-off position corresponding to the switching-on and switching-off state of the disconnecting link body; the induction component comprises an induction piece; and
the detection assembly is detachably mounted on the periphery of the opening and closing position of the disconnecting link transmission mechanism; the detection assembly comprises a detection piece and a state output piece, the detection piece is electrically connected with the state output piece, and the state output piece is used for outputting the state of the disconnecting link body;
In the movement process of the disconnecting link transmission mechanism, the detection piece can detect that the sensing piece is close to or far away from the detection piece so as to detect the opening state and/or closing state of the disconnecting link body.
2. the device for detecting the state of the disconnecting link according to claim 1, wherein the number of the detecting pieces is at least two, and the number of the detecting pieces is equal to the number of the opening and closing states of the disconnecting link body;
The setting positions of the at least two detection pieces correspond to the opening and closing positions one by one.
3. The device for detecting the status of a disconnecting link according to claim 2, wherein the detecting member is linear, and at least two of the detecting members are arranged in a linear manner and are engaged with the sensing member at the position of the linear moving member in the disconnecting link transmission mechanism.
4. The device for detecting the state of the knife switch as claimed in claim 2, wherein the detecting component is arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detecting pieces are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped, and are used for being matched with the sensing piece at the position of the rotary motion part in the knife switch transmission mechanism.
5. The device for detecting the state of the disconnecting link according to claim 2, wherein the detecting component is linear, and at least two detecting pieces are arranged in a linear manner and are matched with the sensing piece at the position of the linear moving part in the disconnecting link transmission mechanism;
The detection components are arc-shaped, curve-shaped or combination of linearity and arc-shaped, and at least two detection components are arranged according to the arc-shaped, curve-shaped or combination of linearity and arc-shaped and are used for being matched with the induction component at the position of the rotary motion component in the disconnecting link transmission mechanism.
6. The device for detecting the state of the disconnecting link according to claim 1, wherein the number of the detecting pieces is one, and the detecting pieces are arranged corresponding to the opening position or the closing position of the opening and closing positions of the disconnecting link body.
7. The disconnecting link state detecting device according to any one of claims 1 to 6, wherein the detecting member is a reed switch or a Hall element, and the sensing member is a magnetic member; or, the detecting piece is a position sensor, and the sensing piece is a sensing piece;
When the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, the detection part at the corresponding position can detect the induction part so as to detect the switching-on and switching-off states of the disconnecting link body.
8. The device for detecting the state of a disconnecting link according to any one of claims 1 to 6, wherein the detecting member is a tact switch, and the sensing member is a touching member;
when the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, the touch part touches the light touch switch at the corresponding position so as to detect the switching-on and switching-off states of the disconnecting link body.
9. The device for detecting the status of a disconnecting link according to any one of claims 1 to 6, wherein the detecting member is a transmitter and a receiver, and the sensing member is a reflecting member;
when the disconnecting link transmission mechanism drives the disconnecting link body to perform switching-on and switching-off operations, signals sent by the transmitter can be reflected to the receiver through the reflecting piece so as to detect the switching-on and switching-off states of the disconnecting link body;
The transmitter emits an optical, electrical or acoustic signal.
10. The device for detecting the state of the disconnecting link according to any one of claims 1 to 6, wherein the sensing assembly further comprises a sensing bracket, the sensing bracket is used for mounting the sensing piece, and the sensing bracket is suitable for being mounted on the disconnecting link transmission mechanism;
The induction support is fixed on the disconnecting link transmission mechanism in a thread fixing mode, a hoop fastening mode, a hoop mode or an adhesive mode.
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| CN201920236672.0U CN209784499U (en) | 2019-02-25 | 2019-02-25 | Disconnecting link state detection device |
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| CN201920236672.0U CN209784499U (en) | 2019-02-25 | 2019-02-25 | Disconnecting link state detection device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959867A (en) * | 2019-03-28 | 2019-07-02 | 国网山东省电力公司日照供电公司 | A kind of disconnecting link state collecting device |
| CN113325306A (en) * | 2021-06-04 | 2021-08-31 | 广东电网有限责任公司 | Detection device |
| CN113866623A (en) * | 2021-09-27 | 2021-12-31 | 广东电网有限责任公司 | Ground knife auxiliary node device of outdoor capacitor bank |
| CN113932695A (en) * | 2021-11-09 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Disconnecting link position confirmation sensor device based on magnetic induction technology |
| CN114023588A (en) * | 2021-10-26 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司柳州局 | Knife switch opening and closing control equipment, method computer equipment and storage medium |
| CN115235550A (en) * | 2022-09-21 | 2022-10-25 | 国网山东省电力公司日照供电公司 | Knife switch state detection method and knife switch state detection device based on magnetic induction technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109959867A (en) * | 2019-03-28 | 2019-07-02 | 国网山东省电力公司日照供电公司 | A kind of disconnecting link state collecting device |
| CN113325306A (en) * | 2021-06-04 | 2021-08-31 | 广东电网有限责任公司 | Detection device |
| CN113866623A (en) * | 2021-09-27 | 2021-12-31 | 广东电网有限责任公司 | Ground knife auxiliary node device of outdoor capacitor bank |
| CN114023588A (en) * | 2021-10-26 | 2022-02-08 | 中国南方电网有限责任公司超高压输电公司柳州局 | Knife switch opening and closing control equipment, method computer equipment and storage medium |
| CN114023588B (en) * | 2021-10-26 | 2024-05-07 | 中国南方电网有限责任公司超高压输电公司柳州局 | Knife switch opening and closing control equipment, method computer equipment and storage medium |
| CN113932695A (en) * | 2021-11-09 | 2022-01-14 | 广东电网有限责任公司江门供电局 | Disconnecting link position confirmation sensor device based on magnetic induction technology |
| CN115235550A (en) * | 2022-09-21 | 2022-10-25 | 国网山东省电力公司日照供电公司 | Knife switch state detection method and knife switch state detection device based on magnetic induction technology |
| CN115235550B (en) * | 2022-09-21 | 2023-01-31 | 国网山东省电力公司日照供电公司 | Knife switch state detection method and knife switch state detection device based on magnetic induction technology |
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