CN113296026A - Secondary circuit monitoring system - Google Patents
Secondary circuit monitoring system Download PDFInfo
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- CN113296026A CN113296026A CN202110544786.3A CN202110544786A CN113296026A CN 113296026 A CN113296026 A CN 113296026A CN 202110544786 A CN202110544786 A CN 202110544786A CN 113296026 A CN113296026 A CN 113296026A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The invention relates to the technical field of circuit detection, in particular to a secondary circuit monitoring system. Secondary circuit monitoring system includes central controller, information acquisition module and a plurality of protection clamp plate, central controller is connected with the information acquisition module electricity, be used for handling the data that the information acquisition module acquireed and send to on monitoring terminal, the protection clamp plate includes the clamp plate base, first connecting piece and first pilot lamp, be provided with independent work circuit and detection circuit each other in the clamp plate base, first connecting piece sets up in the clamp plate base outside, first pilot lamp sets up on clamp plate base or first connecting piece, first pilot lamp is connected with detection circuit and information acquisition module electricity respectively, first pilot lamp lights and gives the information acquisition module with the data transfer that the protection clamp plate is in operating condition when detecting the circuit and switching on. The secondary circuit monitoring system can quickly and accurately judge the on-off state of each protection pressing plate, and improves the maintenance efficiency.
Description
Technical Field
The invention relates to the technical field of circuit detection, in particular to a secondary circuit monitoring system.
Background
The primary equipment in the power system is high-voltage heavy-current equipment, generally can't be with relevant measurement and protection device direct access, at present, in electrical equipment, generally adopt secondary circuit to come to monitor primary equipment, control, regulation and protection, because the long-time incessant operation of the function equipment of secondary circuit internal connection, in addition other factors such as environment, the contact failure is caused because of its inside screw is not hard up, circumstances such as corrosion easily appear to the protection clamp plate in the secondary circuit, make the secondary circuit appear the circumstances such as short circuit or open a way, lead to producing irreversible damage to equipment, even influence the personal and property safety. It is therefore desirable to monitor the status of functional equipment in the secondary loop to discover potential faults in a timely manner and to provide a source of data for subsequent measures to improve the equipment.
Because the protection clamp plate in the secondary circuit equipment has a plurality ofly, when monitoring system finds that secondary circuit breaks down and examines the investigation, need the maintainer to examine every protection clamp plate in proper order, because monitoring system can't judge accurately and fast be the on-off state of protection clamp plate, lead to the inefficiency of overhauing.
Disclosure of Invention
The invention aims to provide a secondary circuit monitoring system which can quickly and accurately judge the on-off state of each protection pressing plate and improve the maintenance efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a secondary circuit monitoring system comprises a central controller, an information acquisition module and a plurality of protective pressing plates, wherein the central controller is electrically connected with the information acquisition module and used for processing data acquired by the information acquisition module and sending the data to a monitoring terminal;
the protective pressing plate includes:
the detection device comprises a pressure plate base, wherein a working circuit and a detection circuit which are independent from each other are arranged in the pressure plate base, and a first fixed contact group and a second fixed contact group which correspond to the working circuit and the detection circuit are arranged on the surface of the pressure plate base at intervals;
the first connecting piece is arranged on the outer side of the pressing plate base, a working contact group and a detection contact group are arranged on the first connecting piece at intervals, the working contact group and the detection contact group can be respectively close to or far away from the first fixed contact group and the second fixed contact group at the same time, and in a working state, the working contact group and the detection contact group can be respectively connected with the first fixed contact group and the second fixed contact group at the same time to conduct the working circuit and the detection circuit;
the first indicator light is arranged on the pressing plate base or the first connecting piece, the first indicator light is respectively electrically connected with the detection loop and the information acquisition module, and when the detection loop is switched on, the first indicator light is turned on and transmits data of the protection pressing plate in a working state to the information acquisition module.
As an alternative to the secondary loop monitoring system, the first connecting member is a push-button switch, and the operating contact set and the detecting contact set are respectively away from or close to the first fixed contact set and the second fixed contact set in response to a push-button of the push-button switch being pressed.
As an alternative of a secondary loop monitoring system, the button is a self-locking button, a spring seat is installed on one side, close to the self-locking button, of the pressing plate base, a first elastic piece is installed between the spring seat and the self-locking button, and the working contact group and the detection contact group are arranged on one side, close to the pressing plate base, of the self-locking button.
As an alternative to the secondary loop monitoring system, the secondary loop monitoring system further comprises a plurality of terminal blocks, the terminal blocks comprising:
a base;
a plurality of groups of wiring terminal assemblies arranged on the base at intervals along a first direction to respectively form a plurality of loops;
a second connector slidably disposed on the base along the first direction and capable of approaching or departing from the terminal assembly along a second direction;
the detection piece is arranged on the base and is electrically connected with the second connecting piece and the information acquisition module respectively, and when the second connecting piece is abutted to the wiring terminal assembly, the detection piece can display the on-off state of the loop and transmit the on-off state to the information acquisition module.
As an alternative to the secondary loop monitoring system, the terminal block includes a guide rail and a slider that are engaged, the guide rail is provided on the base and extends in the first direction, the slider is slidably mounted on the guide rail, the second connecting member is provided on the slider, and a distance between the second connecting member and the slider in the second direction is adjustable.
As an alternative to the secondary loop monitoring system, the terminal block further includes a second elastic member, one end of the second elastic member is disposed at the top end of the slider, and the other end of the second elastic member is disposed at the bottom end of the second connecting member, so as to adjust a distance between the second connecting member and the slider along the second direction.
As an alternative of the secondary loop monitoring system, the terminal assembly comprises an inlet terminal and an outlet terminal which are electrically connected, the inlet terminal and the outlet terminal are arranged at intervals along a third direction, a bottom end of the second connecting piece is provided with a first contact and a second contact which correspond to each other at intervals along the third direction, the first contact can be abutted against the inlet terminal, and the second contact can be abutted against the outlet terminal.
As an alternative to the secondary loop monitoring system, the guide rail is disposed between the inlet terminal and the outlet terminal, and the first contact and the second contact are respectively located on both sides of the second elastic member.
As an alternative to the secondary loop monitoring system, the guide rail is disposed on a side of the terminal assembly, and the first contact and the second contact are both located on a side of the second resilient member adjacent to the terminal assembly.
As an alternative of the secondary loop monitoring system, the secondary loop monitoring system further includes a communication module, and the communication module is electrically connected with the central controller and the information acquisition module respectively, and is used for sending the data obtained by the information acquisition module to the central controller.
Has the advantages that: the invention provides a secondary circuit monitoring system. When one or more of the protection pressing plates in the secondary circuit are in the exit state, the central processing unit can rapidly judge the failed protection pressing plate according to the data received from the information acquisition module and send the failed protection pressing plate to the monitoring terminal, and a maintainer can overhaul the failed protection pressing plate according to the monitoring terminal, so that the overhaul efficiency is improved. The secondary circuit monitoring system can quickly and accurately judge the on-off state of each protection pressing plate, and improves the maintenance efficiency.
Drawings
Fig. 1 is a schematic structural view of a protective pressing plate according to embodiment 1 of the present invention;
fig. 2 is a plan view of a terminal block provided in embodiment 1 of the present invention;
fig. 3 is a side view of the terminal block with the guide rails and the terminal block removed, provided in embodiment 1 of the present invention.
Wherein:
11. a platen base;
12. a first connecting member; 121. a working contact group; 122. detecting a contact group;
13. a first indicator light; 14. a protective cover;
211. a guide rail;
22. a terminal assembly; 221. a wiring terminal is arranged; 222. a connecting terminal is output;
23. a slider;
24. a second connecting member; 241. a first contact; 242. a second contact;
25. a second elastic member; 26. and (4) a detection piece.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1 to 3, the present invention provides a secondary circuit monitoring system, which includes a central controller, an information acquisition module and a plurality of protection pressing plates, wherein the central controller is electrically connected to the information acquisition module, and is configured to process data acquired by the information acquisition module and send the data to a monitoring terminal; the protection pressing plate comprises a pressing plate base 11, a first connecting piece 12 and a first indicator light 13, a working circuit and a detection circuit which are independent of each other are arranged in the pressing plate base 11, and a first fixed contact group and a second fixed contact group which correspond to the working circuit and the detection circuit are arranged on the surface of the pressing plate base 11 at intervals; the first connecting piece 12 is arranged on the outer side of the pressure plate base 11, the first connecting piece 12 is provided with a working contact group 121 and a detection contact group 122 at intervals, the working contact group 121 and the detection contact group 122 can be respectively close to or far away from the first fixed contact group and the second fixed contact group at the same time, and in a working state, the working contact group 121 and the detection contact group 122 can be respectively connected with the first fixed contact group and the second fixed contact group at the same time to conduct a working circuit and a detection circuit; first pilot lamp 13 sets up on clamp plate base 11 or first connecting piece 12, and first pilot lamp 13 is connected with detection return circuit and information acquisition module electricity respectively, and first pilot lamp 13 lights and gives information acquisition module with the data transfer that the protection clamp plate is in operating condition when the detection return circuit switches on.
When one or more of the protection pressing plates in the secondary circuit are in the exit state, the central processing unit can rapidly judge the failed protection pressing plate according to the data received from the information acquisition module and send the failed protection pressing plate to the monitoring terminal, and a maintainer can overhaul the failed protection pressing plate according to the monitoring terminal, so that the overhaul efficiency is improved. The secondary circuit monitoring system can quickly and accurately judge the on-off state of each protection pressing plate, and improves the maintenance efficiency.
It can be understood that, during the working state (i.e. putting into the protection pressing plate), the working contact group 121 and the detection contact group 122 can be simultaneously and respectively connected with the first fixed contact group and the second fixed contact group to switch on the working circuit and the detection circuit, at this moment, the maintenance personnel can clearly judge that the protection pressing plate is in the putting-in state through the lighting of the first indicator lamp 13, and after the protection pressing plate exits, the maintenance personnel can quickly judge that the pressing plate is in the exiting state through the extinguishing state of the first indicator lamp 13. The protection pressing plate is simple in structure, and can be convenient for maintainers to judge the on-off state of the protection pressing plate quickly and accurately, and the overhauling and troubleshooting efficiency is improved.
Illustratively, the first indicator light 13 emits red light when it is turned on.
In addition, the central controller can also generate a periodic report according to the condition of failure in the previous secondary circuit, intelligently analyze the protection pressing plate which is possibly failed next time, and send the protection pressing plate to the monitoring terminal, so that the maintainers can timely remove the failure. The central processing unit generates the periodic report and intelligently predicts the fault, which belongs to the common general knowledge of the technicians in the field, and the embodiment is not limited in particular.
The secondary circuit monitoring system further comprises a communication module, and the communication module is electrically connected with the central controller and the information acquisition module respectively and used for sending data obtained by the information acquisition module to the central controller.
Illustratively, the communication module includes a CMU communication unit.
Furthermore, when a secondary circuit monitoring side system needs to monitor a plurality of secondary circuits at the same time, a plurality of information acquisition modules are correspondingly arranged, and each information acquisition module corresponds to equipment in one secondary circuit.
Illustratively, the secondary circuit monitoring side system monitors the four secondary circuits with a 10kV alternating current bus, a 380V alternating current bus, a 375V direct current bus and a 10kV direct current bus.
As shown in fig. 1, in the present embodiment, in order to enable the operating contact group 121 and the detecting contact group 122 to be simultaneously connected to the first fixed contact group and the second fixed contact group respectively to conduct the operating circuit and the detecting circuit, the first connecting member 12 is a push-button switch, and the operating contact group 121 and the detecting contact group 122 are respectively far from or close to the first fixed contact group and the second fixed contact group in response to the push-button of the push-button switch.
Specifically, the button is a self-locking button, a spring seat is installed on one side, close to the self-locking button, of the pressing plate base 11, a first elastic piece is installed between the spring seat and the self-locking button, and the working contact group 121 and the detection contact group 122 are arranged on one side, close to the pressing plate base 11, of the self-locking button. That is, the self-locking button is installed on the pressing plate base 11 through an installation sleeve (not shown), when in use, the self-locking button is pressed down, so that the working contact group 121 and the detection contact group 122 act simultaneously, the working contact group 121 and the first fixed contact group are connected, the detection contact group 122 and the second fixed contact group are connected, the working circuit and the detection circuit are connected simultaneously, when in disconnection, the self-locking button is reset, the working contact group 121 and the detection contact group 122 act simultaneously and leave the first fixed contact group and the second fixed contact group respectively, the working contact group 121 and the first fixed contact group are disconnected, the detection contact group 122 and the second fixed contact group are disconnected, the working circuit and the detection circuit are disconnected simultaneously, and the requirement of real-time detection of the state when the pressing plate is put into or withdrawn is met. Since the latching button is common knowledge of those skilled in the art, the present embodiment is not specifically described.
Illustratively, the first elastic member is a spring.
In this embodiment, the first indicator light 13 is provided on the platen base 11 to facilitate maintenance. In other embodiments, the first indicator light 13 may be integrated into the button switch, and the button is provided with a light-transmitting structure, so that the operator can know the on-off state of the protection pressing plate at the moment when pressing the self-locking button, considering that the structure of the protection pressing plate to be subjected to on-off detection should be as compact as possible.
Specifically, the light-transmitting structure is composed of a through hole arranged in the center of the button and a light-transmitting component embedded in the through hole. Of course, the light transmitting structure may be formed of an annular light transmitting member provided around the push button. The embodiment does not limit the specific structure of the light-transmitting structure, as long as the self-locking button can display the on-off state of the protective pressing plate.
Furthermore, in order to avoid as far as possible that the internal structure of the protection pressing plate is corroded due to the external environment, and further the protection pressing plate can not stably run for a long time. The protective pressing plate further comprises a protective cover 14 arranged on the pressing plate base 11, and the first connecting piece 12 is partially exposed out of the protective cover 14, namely only the button part is exposed out of the protective cover 14, so that an operator can operate the button to change the on-off state of the protective pressing plate.
Illustratively, the protective cover 14 is made of transparent PC polycarbonate.
During operating condition (promptly drop into the protection clamp plate), work contact group 121 and detection contact group 122 can be connected with first fixed contact group and second fixed contact group respectively simultaneously in order to switch on work return circuit and detection return circuit, and the maintainer can be very clear this moment lights through first pilot lamp 13 and judges that the protection clamp plate is in the state of dropping into, withdraws from the back when the protection clamp plate, and the maintainer can be in through first pilot lamp 13 and judge that the clamp plate is in the state of withdrawing from fast in the state of extinguishing. The protection pressing plate is simple in structure, and can be convenient for maintainers to judge the on-off state of the protection pressing plate quickly and accurately, and the overhauling and troubleshooting efficiency is improved.
As shown in fig. 2 to 3, in the present embodiment, the secondary circuit monitoring system further includes a plurality of terminal blocks, which include a base, terminal block assemblies 22, a second connecting member 24 and a detecting member 26, wherein a plurality of sets of terminal block assemblies 22 are arranged on the base at intervals along a first direction to form a plurality of circuits respectively; the second connecting piece 24 is slidably arranged on the base along the first direction and can be close to or far away from the wiring terminal assembly 22 along the second direction; the detection piece 26 is arranged on the base, the detection piece 26 is respectively electrically connected with the second connecting piece 24 and the information acquisition module, and the detection piece 26 can display the on-off state of the loop and transmit the on-off state to the information acquisition module when the second connecting piece 24 abuts against the wiring terminal assembly 22.
When a secondary loop is short-circuited or open-circuited, the central processing unit can quickly judge the terminal strip with a fault according to data received from the information acquisition module through the communication module and send the terminal strip to the monitoring terminal, a maintainer can know the on-off state of the loop formed by the terminal strip 22 through the detection piece 26 by sliding the second connecting piece 24 and enabling the second connecting piece 24 to be abutted to a certain wiring terminal assembly 22, if the loop is in a path, the operation is repeated to detect the rest of the terminal strip assemblies 22 until the fact that a certain loop is in an open-circuit state is detected, so that the loops on the terminal strip are quickly checked one by one, and the operation method is simple and efficient.
Specifically, the terminal block includes a guide rail 211 and a slider 23 which are engaged, the guide rail 211 is provided on the base and extends in a first direction, the slider 23 is slidably mounted on the guide rail 211, the second connector 24 is provided on the slider 23, and a distance between the second connector 24 and the slider 23 in a second direction is adjustable. The guide rail 211 and the base are integrally formed or separated, and this embodiment is not limited specifically.
In order to allow the second link 24 to approach or move away from the terminal assembly 22 in the second direction, the terminal block further includes a second elastic member 25, and one end of the second elastic member 25 is disposed at the top end of the slider 23 and the other end is disposed at the bottom end of the second link 24 for adjusting the distance between the second link 24 and the slider 23 in the second direction. When a certain loop needs to be detected, the sliding block 23 is moved to enable the second connecting piece 24 to be located above the wiring terminal assembly 22 forming the loop, a maintainer presses the second connecting piece 24 to drive the second elastic piece 25 to be compressed until the second connecting piece 24 abuts against the wiring terminal assembly 22, the on-off state of the loop is judged according to the display of the detecting piece 26 and then is released, and the second elastic piece 25 drives the second connecting piece 24 to be far away from the wiring terminal assembly 22 under the action of rebound resilience.
It should be understood that "above" as "above the terminal assembly 22 means that the second connector 24 is spaced away from the side of the terminal assembly 22 in the second direction.
The second elastic member 25 is exemplarily a spring.
In this embodiment, the connection terminal assembly 22 includes an incoming connection terminal 221 and an outgoing connection terminal 222 that are electrically connected, the incoming connection terminal 221 and the outgoing connection terminal 222 are disposed at an interval along the third direction, a first contact 241 and a second contact 242 that are corresponding to each other are disposed at an interval along the third direction on the bottom end of the second connection member 24, the first contact 241 can abut against the incoming connection terminal 221, and the second contact 242 can abut against the outgoing connection terminal 222. That is, when the second connecting member 24 approaches the terminal assembly 22, the first contact 241 and the second contact 242 can simultaneously abut against the inlet terminal 221 and the outlet terminal 222, respectively, to form a detection loop with the detecting member 26 and the terminal assembly 22.
Specifically, the guide rail 211 is disposed between the inlet terminal 221 and the outlet terminal 222, and the first contact 241 and the second contact 242 are respectively located at both sides of the second elastic member 25, so as to improve the compactness of the entire structure of the terminal block.
In the present embodiment, the first contact 241 and/or the second contact 242 are made of a metal magnetic material. Since the existing inlet terminal 221 and outlet terminal 222 are respectively fixed inside the conducting wire by the fastening member, the fastening member has certain conductivity and magnetism, when the second connecting member 24 is pressed close to the terminal assembly 22, the magnetism on the fastening member will guide the first contact 241 or the second contact 242 to be close to each other accurately until abutting, so as to avoid that the sliding position of the slider 23 on the guide rail 211 cannot be controlled accurately. Here, since it is a common technique in the art to fix the wire in the inlet terminal 221 or the outlet terminal 222 by a fastener, the embodiment is not specifically described.
Illustratively, the fasteners are screws.
Specifically, in order to ensure that the detection part 26 can display the on-off state of the loop, the detection part 26 comprises a buzzer, and the buzzer buzzes when the loop is conducted. The buzzer may be disposed at one end of the base, or may be disposed on the second connecting part 24, and this embodiment is not particularly limited.
Further, in order to improve the display degree that detection piece 26 judges the on-off state in return circuit, detection piece 26 still includes the second pilot lamp, second pilot lamp and buzzer electric connection, and the second pilot lamp is luminous when the return circuit switches on to whether the maintainer can't discern the buzzer and buzzes when avoiding external environment too noisy or the buzzer breaks down.
Illustratively, the second indicator light emits a red light when illuminated.
Wherein, the second indicator light is arranged at the top end of the second connecting piece 24, so that the on-off condition of the second indicator light can be observed when the second connecting piece 24 slides.
When the terminal row is short-circuited or broken, the maintainer only needs to slide the second connecting piece 24 to a position above a certain connecting terminal assembly 22 and press the second connecting piece 24 until the first contact 241 and the second contact 242 are respectively abutted to the fasteners of the incoming connecting terminal 221 and the outgoing connecting terminal 222, so that the on-off state of a loop formed by the connecting terminal assembly 22 can be known through the conditions that whether the buzzer rings and the second indicator light is on or off, if the loop is in the on-state, the second connecting piece 24 is loosened to enable the second elastic piece 25 to drive the second connecting piece 24 to be far away from the connecting terminal assembly 22, and the operations are repeated to detect the rest of the connecting terminal assemblies 22 until a certain loop is detected to be in the off-state.
The terminal block further includes an alarm, which is electrically connected to all the incoming connection terminals 221 and all the outgoing connection terminals 222 in the whole terminal block, and is electrically connected to the information acquisition module, so as to perform on-off detection on the whole terminal block. When being equipped with a plurality of terminal rows in the secondary circuit promptly, can make the maintainer know the terminal row that breaks down fast through the alarm. Of course, in other embodiments, the alarm may be provided as an integral structure with the detecting member 26, and the embodiment is not particularly limited.
When the secondary circuit monitoring system finds that the secondary circuit has faults, the central processing unit can quickly judge the failed protective pressing plate and/or the failed terminal strip according to data received from the information acquisition module and send the data to the monitoring terminal, and a maintainer can overhaul the failed protective pressing plate and/or the failed terminal strip according to the monitoring terminal, so that the overhaul efficiency is improved. This secondary circuit monitoring system can judge the break-make state of protection clamp plate and terminal row fast and accurately, improves maintenance efficiency.
Example two
The present embodiment provides a secondary circuit monitoring system which is different from the first embodiment only in the structure of the first connecting member 12 of the protective pressure plate.
In this embodiment, the protection pressing plate further includes a rotating shaft, the first connecting member 12 is rotatably connected to the pressing plate base 11 through the rotating shaft, and the working contact group 121 and the detecting contact group 122 are respectively far away from or close to the first fixed contact group and the second fixed contact group through rotation of the first connecting member 12.
In order to enable the working contact group 121 and the detection contact group 122 to be simultaneously and respectively connected with the first fixed contact group and the second fixed contact group to conduct a working loop and a detection loop, the first fixed contact group is two first oppositely-arranged inserting columns, the working contact group 121 is two first oppositely-arranged connecting pieces, the first connecting pieces are provided with first inserting grooves, and the inner walls of the first inserting grooves can be abutted to the outer walls of the first inserting columns; the second fixed contact group is two second that set up relatively and inserts the post, and work contact group 121 is two second even pieces that set up relatively, and the second even piece is provided with the second slot, and the inner wall of second slot can insert the outer wall butt of post with the second. Namely, when the first connecting piece 12 rotates, the first connecting piece and the second connecting piece move simultaneously until the first inserting column is inserted on the first slot, the second inserting column is inserted on the second slot, so that the working circuit and the detection circuit are simultaneously connected, when the first connecting piece 12 needs to be disconnected, the first connecting piece and the second connecting piece move simultaneously to leave the first inserting column and the second inserting column respectively, so that the working circuit and the detection circuit are simultaneously disconnected, and the requirement of real-time detection and judgment convenience for the state when the pressing plate is put into or withdrawn is met.
Further, in order to facilitate the operator to rotate the first connecting member 12, a protrusion is provided on the first connecting member 12, and the protrusion is exposed outside the protective cover 14.
EXAMPLE III
The present embodiment provides a secondary circuit monitoring system, which is different from the first and second embodiments only in that the specific arrangement position of the guide rail 211 of the terminal block on the base is different, so as to facilitate the replacement of the relevant components such as the sliding block 23, the second elastic member 25 and the second connecting member 24 by the service personnel.
Specifically, the guide rail 211 is disposed on one side of the terminal assembly 22, and the first contact 241 and the second contact 242 are both located on one side of the second elastic member 25 adjacent to the terminal assembly 22. That is, the guide rail 211 is disposed on a side of the inlet terminal 221 or the outlet terminal 222 away from each other, and accordingly, the first contact 241 and the second contact 242 on the second connecting member 24 are located on the same side of the second connecting member 24 so as to be capable of abutting against the inlet terminal 221 and the outlet terminal 222, respectively.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A secondary circuit monitoring system is characterized by comprising a central controller, an information acquisition module and a plurality of protective pressing plates, wherein the central controller is electrically connected with the information acquisition module and used for processing data acquired by the information acquisition module and sending the data to a monitoring terminal;
the protective pressing plate includes:
the device comprises a pressure plate base (11), wherein a working circuit and a detection circuit which are independent of each other are arranged in the pressure plate base (11), and a first fixed contact group and a second fixed contact group which correspond to the working circuit and the detection circuit are arranged on the surface of the pressure plate base (11) at intervals;
the pressing plate comprises a first connecting piece (12) arranged on the outer side of a pressing plate base (11), a working contact group (121) and a detection contact group (122) are arranged on the first connecting piece (12) at intervals, the working contact group (121) and the detection contact group (122) can be respectively close to or far away from the first fixed contact group and the second fixed contact group at the same time, and in the working state, the working contact group (121) and the detection contact group (122) can be respectively connected with the first fixed contact group and the second fixed contact group at the same time to conduct a working circuit and a detection circuit;
the first indicator light (13) is arranged on the pressing plate base (11) or the first connecting piece (12), the first indicator light (13) is respectively electrically connected with the detection loop and the information acquisition module, and when the detection loop is conducted, the first indicator light (13) is turned on and transmits data of the protection pressing plate in a working state to the information acquisition module.
2. The secondary loop monitoring system as claimed in claim 1, characterized in that the first connecting member (12) is a push button switch, and the operating contact set (121) and the detection contact set (122) are moved away from or close to the first fixed contact set and the second fixed contact set, respectively, in response to a push button of the push button switch.
3. The secondary circuit monitoring system according to claim 2, wherein the button is a self-locking button, a spring seat is installed on one side of the pressure plate base (11) close to the self-locking button, a first elastic member is installed between the spring seat and the self-locking button, and the working contact group (121) and the detection contact group (122) are arranged on one side of the self-locking button close to the pressure plate base (11).
4. The secondary loop monitoring system of claim 1 further comprising a plurality of terminal blocks, the terminal blocks comprising:
a base;
a plurality of sets of terminal assemblies (22) arranged at intervals in a first direction on the base to form a plurality of loops, respectively;
a second connector (24), said second connector (24) being slidably disposed on said base in said first direction and being movable in a second direction toward and away from said terminal assembly (22);
the detection piece (26) is arranged on the base, the detection piece (26) is respectively electrically connected with the second connecting piece (24) and the information acquisition module, and when the second connecting piece (24) is abutted to the wiring terminal assembly (22), the detection piece (26) can display the on-off state of the loop and transmit the on-off state to the information acquisition module.
5. The secondary loop monitoring system as claimed in claim 4, wherein the terminal block comprises a guide rail (211) and a slider (23) which are engaged, the guide rail (211) is provided on the base and extends in the first direction, the slider (23) is slidably mounted on the guide rail (211), the second connector (24) is provided on the slider (23), and a distance between the second connector (24) and the slider (23) in the second direction is adjustable.
6. The secondary loop monitoring system as claimed in claim 5, wherein the terminal block further comprises a second elastic member (25), one end of the second elastic member (25) is disposed at a top end of the slider (23), and the other end is disposed at a bottom end of the second connecting member (24) for adjusting a distance between the second connecting member (24) and the slider (23) in the second direction.
7. The secondary loop monitoring system as claimed in claim 6, wherein the terminal assembly (22) comprises an inlet terminal (221) and an outlet terminal (222) which are electrically connected, the inlet terminal (221) and the outlet terminal (222) are spaced along a third direction, a bottom end of the second connecting member (24) is provided with a first contact (241) and a second contact (242) which are spaced along the third direction, the first contact (241) can abut against the inlet terminal (221), and the second contact (242) can abut against the outlet terminal (222).
8. The secondary loop monitoring system as claimed in claim 7, wherein the guide rail (211) is disposed between the inlet terminal (221) and the outlet terminal (222), and the first contact (241) and the second contact (242) are respectively located at both sides of the second elastic member (25).
9. The secondary loop monitoring system as claimed in claim 7, wherein the guide rail (211) is disposed on a side of the terminal assembly (22), and the first contact (241) and the second contact (242) are both located on a side of the second resilient member (25) adjacent to the terminal assembly (22).
10. The secondary loop monitoring system as claimed in any one of claims 1 to 9, further comprising a communication module electrically connected to the central controller and the information acquisition module, respectively, for transmitting data obtained by the information acquisition module to the central controller.
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| CN202110544786.3A CN113296026B (en) | 2021-05-19 | 2021-05-19 | Secondary circuit monitoring system |
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| CN202110544786.3A CN113296026B (en) | 2021-05-19 | 2021-05-19 | Secondary circuit monitoring system |
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| CN113296026B CN113296026B (en) | 2022-11-04 |
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|---|---|
| CN113296026B (en) | 2022-11-04 |
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