Use convenient current stability monitoring device
Technical Field
The utility model relates to the field of current monitoring equipment, in particular to a current stability monitoring device convenient to use.
Background
In a plurality of fields such as power system, industrial automation, traffic, building, etc., there is great demand for electric power, and stable current provides important support for stable operation of power supply system, safety protection of equipment and effective management of energy. Therefore, in the power supply system, the current needs to be monitored in real time by using a current transformer, the current transformer is installed in an electric box, and after the electric wire which is connected from the air passes through the inner hole of the current transformer, the current flowing through the electric wire can be monitored in real time. CN219979259U discloses a combined current transformer, which comprises a lower shell and an upper shell, wherein the inner parts of the lower shell and the upper shell are provided with transformer windings, the inner side rotating shaft of the lower shell is connected with the upper shell, one end of the upper shell is provided with a clamping strip, the surface of the lower shell is provided with a clamping groove, and the inner side of the clamping groove is clamped with the clamping strip. The utility model facilitates the connection between the upper shell and the lower shell of the transformer by clamping the clamping strips on the inner side of the clamping groove, and can rotate the upper shell upwards to open the transformer by abutting the abutting blocks against the inner wall of the clamping groove, which is separated from the clamping connection by the clamping strips, thereby facilitating the opening and closing between the upper shell and the lower shell of the transformer, and the first conductive block and the second conductive block are tightly attached together by the elasticity of the first conductive spring and the second conductive spring, so that the poor contact of the transformer can be avoided.
The inventor finds that the above combined current transformer can only monitor the current of a single wire in real time, when three-way electricity is monitored in real time, three combined current transformers are usually adopted to be respectively installed in an electric box, and after the three wires respectively pass through the corresponding combined current transformers, the combined current transformers monitor the current flowing through the wires, but when the three combined current transformers are installed, a certain operation space for construction is reserved around each combined current transformer, so that the utilization rate of the space in the electric box is reduced, the three combined current transformers are repeatedly installed, the construction workload is increased, in addition, the combined current transformers do not have the function of fixing the wires, so that when the wires are pulled by external force, the wires are easily disconnected from air, and the use stability of a power supply system is reduced.
Disclosure of utility model
The utility model mainly solves the technical problem of providing the current stability monitoring device which is convenient to use, reduces the operation space of construction and the workload of construction, prevents external force from pulling wires through the use of the wire fixing assembly, and enhances the use stability of a power supply system.
In order to solve the technical problems, the utility model adopts a technical scheme that the current stability monitoring device convenient to use is provided and is used for monitoring the current flowing out of an electric box through an empty switch and comprises a three-hole type opening current transformer, wherein the three-hole type opening current transformer can be penetrated with three wires for monitoring the current at the same time, and a wire fixing component for fixing the wires is connected to the three-hole type opening current transformer;
The three-hole type open current transformer comprises a first transformer body and a second transformer body, wherein three first arc grooves are formed in the first transformer body, three second arc grooves corresponding to the first arc grooves are formed in the second transformer body, the three current transformer further comprises a hinge piece and a locking piece, one end of the first transformer body is connected with one end of the second transformer body through the hinge piece, and the other end of the first transformer body is detachably connected with the other end of the second transformer body through the locking piece.
By adopting the technical scheme, when the current monitoring device is used, the three wires which are connected in the first electric box in an empty way respectively pass through the arc-shaped groove I on the first electric box, one end of the first electric box is connected with one end of the second electric box through the hinge piece, the second electric box is in conflict with the first electric box in a swinging way, the arc-shaped groove II is positioned on the outer side of the wires, the other end of the first electric box is detachably connected with the other end of the second electric box through the locking piece, the locking piece is operated to enable the first electric box to be in close contact with the second electric box, the first electric box and the second electric box interact, induction current can be generated when the current passes through the wires and can be converted into measurable voltage signals, the external control system is electrically connected with the monitoring device, the external control system can display real-time parameters of the current flowing through the wires, the three independent electric boxes do not need to monitor the current in the three electric wires respectively, therefore the operation space of construction and the work load of construction are reduced, the space of the first electric box is improved, the space of the electric box can be opened by the wires, the air box can be disconnected with the electric box can be prevented from being broken, and the stability of the air can be prevented from being caused.
The utility model can be further configured in a preferred example that the wire fixing assembly comprises a fixing plate connected to the second transformer body, wherein three arc-shaped supporting seats corresponding to the second arc-shaped grooves are connected to the fixing plate, arc-shaped pressing plates are respectively arranged at the rear of the arc-shaped supporting seats, two screw rods are respectively connected to two ends of each arc-shaped pressing plate, and nuts are connected to the end parts of the screw rods after penetrating through the fixing plate in a threaded manner.
Through adopting above-mentioned technical scheme, the electric wire that follows the sky and open out passes the inner chamber of arc supporting seat, presses the arc clamp plate at the surface of electric wire again, and behind the screw rod on the arc clamp plate passed the fixed plate, rotatory nut made arc supporting seat and arc clamp plate respectively with electric wire in close contact with to play the fixed action to the electric wire, prevent external force pulling electric wire make its and sky division separation.
The utility model can be further configured in a preferred example that the hinge piece comprises a rotating seat and hinge plates arranged at two ends of the rotating seat, wherein a hinge shaft penetrates through the rotating seat, two ends of the hinge shaft penetrate through corresponding hinge plates and are in rotary connection, the hinge plates are connected with the first transformer body, and the rotating seat is connected with the second transformer body.
Through adopting above-mentioned technical scheme, rotate the seat and rotate through articulated shaft and articulated slab and be connected, be convenient for mutual-inductor body two rotate along the articulated shaft, make mutual-inductor body one and mutual-inductor body two reach the purpose of articulated connection.
The utility model can be further configured in a preferred example that the locking piece comprises a first locking plate and a second locking plate, the first locking plate is connected with the first transformer body, the second locking plate is connected with the second transformer body, bolts penetrate through the first locking plate and the second locking plate, and nuts are spirally connected to the end parts of the bolts.
Through adopting above-mentioned technical scheme, after mutual-inductor body one and mutual-inductor body two laminating, pass locking board one and locking board two with the bolt, again with nut screwed connection on the bolt and with locking board two close contact for mutual-inductor body one and mutual-inductor body two close connection.
In a preferred example, the utility model can be further configured that the inner walls of the first arc-shaped groove are respectively connected with a rubber sheet, and the inner walls of the second arc-shaped groove are respectively connected with the rubber sheet.
Through adopting above-mentioned technical scheme, through the use of sheet rubber, reduce arc wall one and arc wall two and produce great wearing and tearing to the electric wire, play the guard action.
The utility model can be further configured in a preferred example that the first transformer body comprises a first shell and three transformer windings, wherein the transformer windings are arranged in the inner cavity of the first shell at intervals and are matched with the corresponding arc-shaped grooves, the second transformer body comprises a second shell and three transformer windings, and the transformer windings are arranged in the inner cavity of the second shell at intervals and are matched with the corresponding arc-shaped grooves.
By adopting the technical scheme, each wire is arranged between two transformer windings in a penetrating way, induced current is generated when the wire flows through the current, the induced current is converted into a measurable voltage signal, and an external control system is electrically connected with the monitoring device, so that the external control system can display real-time parameters of the current flowing through the wire.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. Three electric wires of three-way electricity are correspondingly arranged in an arc-shaped groove I of a transformer body I in a penetrating way respectively, the transformer body II is connected with the transformer body I after being swung, the transformer body I and the transformer body II interact, so that when current passes through the electric wires, induced current can be generated and converted into a measurable voltage signal, an external control system is electrically connected with the monitoring device, the external control system can display real-time parameters of the current flowing through the electric wires, three independent transformers are not needed to be used for monitoring the current in the three electric wires respectively, the operation space of construction and the workload of construction are reduced, and the space utilization rate in an electric box is improved.
2. The wire fixing component can fix the wires which are connected with the air switch, so that the wires are prevented from being disconnected with the air switch due to external force pulling, and the use stability of the power supply system is enhanced.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of a current stability monitor apparatus according to a preferred embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of the three-hole type open current transformer in fig. 1.
Fig. 3 is a schematic view of the wire fixing assembly in fig. 1.
Fig. 4 is a cross-sectional view of the first transformer body of fig. 2.
Fig. 5 is a cross-sectional view of the second transformer body of fig. 2.
Fig. 6 is a schematic view of the location of the monitoring device installed in the electrical cabinet.
In the figure, 10 parts of a three-hole type opening current transformer, 20 parts of a wire fixing component, 3 parts of a rubber sheet;
11. first mutual inductor body, 12 mutual inductor body, 13 arc-shaped groove, 14 arc
The second groove, 15, the hinge piece, 16, the locking piece;
111. 112, a transformer winding 121, a second shell;
151. The rotary seat 152, the hinged plate 153 and the hinged shaft;
161. 162, locking plate two;
21. the device comprises a fixing plate, an arc-shaped supporting seat, a screw rod, a 24 arc-shaped pressing plate and a fixing plate.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
The drawings are simplified schematic views, and only the basic structure of the present utility model is schematically described, so that only the constitution related to the present utility model is shown.
Referring to fig. 1-6, the current stability monitoring device convenient to use disclosed by the utility model is used for monitoring current flowing out of an electric box through air opening, and comprises a three-hole type opening current transformer 10, wherein three wires can be simultaneously arranged on the three-hole type opening current transformer 10 in a penetrating manner for monitoring current, a wire fixing assembly 20 for fixing the wires is connected to the three-hole type opening current transformer 10, the monitoring device is fixed in the electric box, and the three wires of three-way electricity pass through the three-hole type opening current transformer 10, and then the current flowing through the wires of the three-hole type opening current transformer 10 is monitored in real time.
The three-hole type opening current transformer 10 comprises a first transformer body 11 and a second transformer body 12, wherein three arc-shaped grooves 13 are formed in the first transformer body 11, three arc-shaped grooves 14 corresponding to the arc-shaped grooves 13 are formed in the second transformer body 12, a hinge 15 and a locking piece 16 are further included, one end of the first transformer body 11 is connected with one end of the second transformer body 12 through the hinge 15, the hinge 15 comprises a rotating seat 151 and hinge plates 152 arranged at two ends of the rotating seat, hinge shafts 153 are arranged in the rotating seat 151 in a penetrating mode, two ends of the hinge shafts 153 penetrate through the corresponding hinge plates 152 and are in rotating connection, the hinge plates 152 are connected with the first transformer body 11, the rotating seat 151 is connected with the second transformer body 12 in a rotating mode, the rotating seat 151 is connected with the hinge plates 152 in a rotating mode through the hinge shafts 153, the second transformer body 12 can conveniently rotate along the hinge shafts 153, and the purpose of enabling the first transformer body 11 to be connected with the second transformer body 12 in a hinging mode.
The other end of the first transformer body 11 is detachably connected with the other end of the second transformer body 12 through a locking piece 16, the locking piece 16 comprises a first locking plate 161 and a second locking plate 162, the first locking plate 161 is connected with the first transformer body 11, the second locking plate 162 is connected with the second transformer body 12, bolts penetrate through the first locking plate 161 and the second locking plate 162, nuts are spirally connected to the end parts of the bolts, and after the first transformer body 11 is attached to the second transformer body 12, the bolts penetrate through the first locking plate 161 and the second locking plate 162, and then the nuts are spirally connected to the bolts, so that the first transformer body 11 is tightly connected with the second transformer body 12.
The wire fixing assembly 20 comprises a fixing plate 21 connected to the second transformer body 12, three arc-shaped supporting seats 22 corresponding to the second arc-shaped grooves 14 are connected to the fixing plate 21, arc-shaped pressing plates are respectively arranged at the rear of the arc-shaped supporting seats 22, two screw rods 23 are respectively connected to two ends of each arc-shaped pressing plate, the end parts of the screw rods 23 penetrate through the fixing plate 21 and are in threaded connection with nuts, an electric wire which is connected from the air opening penetrates through the inner cavity of the arc-shaped supporting seats 22, the arc-shaped pressing plates 24 are pressed on the outer surfaces of the electric wire, and after the screw rods 23 on the arc-shaped pressing plates 24 penetrate through the fixing plate 21, the nuts are rotated to enable the arc-shaped supporting seats 22 and the arc-shaped pressing plates 24 to be respectively in tight contact with the electric wire, so that the electric wire is fixed, and external force is prevented from pulling the electric wire to be separated from the air opening.
The inner walls of the first arc-shaped groove 13 are respectively connected with the rubber sheet 3, the inner walls of the second arc-shaped grooves 14 are respectively connected with the rubber sheet 3, and the use of the rubber sheet 3 reduces the large abrasion of the first arc-shaped groove 13 and the second arc-shaped groove 14 to the electric wire, thereby playing a role in protecting.
The first transformer body 11 comprises a first shell 111 and three transformer windings 112, the transformer windings 112 are arranged in the inner cavity of the first shell 111 at intervals and are matched with the corresponding first arc-shaped grooves 13, the second transformer body 12 comprises a second shell 121 and three transformer windings 112, the transformer windings 112 are arranged in the inner cavity of the second shell 121 at intervals and are matched with the corresponding second arc-shaped grooves 14, each wire is arranged between the two transformer windings 112 in a penetrating mode, induced current is generated when the wire flows through the wire, the induced current can be converted into a measurable voltage signal, and an external control system is electrically connected with the monitoring device of the application, so that the external control system can display real-time parameters of the current flowing through the wire.
The current monitoring device is arranged in an electric box when the current monitoring device is used, three wires which are in air connection in the electric box pass through arc grooves 13 on the first transformer body 11 respectively, one end of the first transformer body 11 is connected with one end of the second transformer body 12 through a hinge 15, the second transformer body 12 is abutted against the first transformer body 11, the arc grooves 14 are arranged on the outer sides of the wires, the other end of the first transformer body 11 is detachably connected with the other end of the second transformer body 12 through a locking piece 16, the locking piece 16 is operated to enable the first transformer body 11 to be in close contact with the second transformer body 12, the first transformer body 11 and the second transformer body 12 interact with each other, so that when current passes through the wires, induced current can be generated and converted into a measurable voltage signal, an external control system is electrically connected with the monitoring device, the external control system can display real-time parameters of the current flowing through the wires, three independent transformers are not required to monitor the current in the three wires respectively, the operation space is reduced, the air connection space is increased, the air connection of the air connection system is prevented from being broken, and the work space is increased, and the air connection is stable is prevented from being caused by the air connection.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.