CN215953834U - Punching current transformer batch detection device - Google Patents
Punching current transformer batch detection device Download PDFInfo
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- CN215953834U CN215953834U CN202121927246.5U CN202121927246U CN215953834U CN 215953834 U CN215953834 U CN 215953834U CN 202121927246 U CN202121927246 U CN 202121927246U CN 215953834 U CN215953834 U CN 215953834U
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Abstract
The utility model provides a punching current transformer batch detection device which comprises a workbench, wherein a plurality of groups of verification structures are arranged on the workbench; each set of assay structures comprises: the device comprises a conductive copper plate, a first propelling device and two groups of mutual inductor clamps; a plurality of straight-through current transformers with the same transformation ratio are arranged in each group of transformer clamps in parallel; a secondary side terminal of the feed-through current transformer is electrically connected with the current detector through a terminal on the workbench; the first propulsion device comprises a first insulating partition plate and two conductive copper rods, and the first insulating partition plate is connected with the first motor driving mechanism through a first guide rod; the fixed ends of two adjacent conductive copper rods in the two adjacent groups of verification structures are connected through a first flexible copper strip; the fixed ends of two conductive copper rods positioned at the head end and the tail end in all the verification structures are respectively connected with a primary large-current power supply loop through second flexible copper strips; the transformer detection device has the beneficial effects of higher wiring efficiency and higher detection accuracy, and is suitable for the field of transformer detection.
Description
Technical Field
The utility model relates to the technical field of mutual inductor detection, in particular to a punching current mutual inductor batch detection device.
Background
The current transformer reduces the large current in the primary circuit into the small current required by the secondary measurement loop in equal proportion, and mainly realizes the functions of electrical isolation and equal proportion measurement at the two ends of high and low voltage.
In the metering application process of the current transformer, each current transformer can be normally used only after being qualified through first verification and periodic verification, along with the rapid development of economy, the working points needing to be metered are more and more, and the quantity of the transformers needing to be verified is also more and more, such as: the primary side heavy current lead needs to be manually penetrated into the primary side heavy current lead from the lead-in end P1 and the lead-out end P2 of the current transformer by a verification worker and sequentially penetrates through N pieces of electricity to be detectedThe current transformers are connected with the secondary winding of each current transformer11 S 21，S21 S 22，…，SN1 S N2, screwing a corresponding secondary wiring by using a screwdriver; in the process, the verification work of the current transformer is complicated and repeated, the wiring efficiency is low, and the working strength is high.
In addition, the manual wiring mode is easy to cause poor contact between the current transformer and a detection instrument due to poor operation of an individual person, and the accuracy of verification is reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the related technology, the technical problem to be solved by the utility model is as follows: the punching current transformer batch detection device is high in wiring efficiency and detection accuracy.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a punching current transformer batch detection device comprises: the detection device comprises a workbench, wherein a plurality of groups of detection structures are arranged on the workbench;
each set of assay structures comprises: the transformer clamp comprises a conductive copper plate arranged on one side of a workbench, a first propelling device arranged on the other side of the workbench, and two groups of transformer clamps arranged between the conductive copper plate and the first propelling device side by side;
a plurality of straight-through current transformers with the same transformation ratio are arranged in each group of the transformer clamps in parallel; a secondary side terminal of the straight-through current transformer is electrically connected with the current detector through a terminal on the workbench;
the first propulsion device comprises: the first insulation partition plate is connected with the first motor driving mechanism through a first guide rod;
when the first motor driving mechanism acts, the first insulating partition plate connected with the first guide rod drives the extending ends of the two conductive copper rods to respectively and correspondingly penetrate through/leave the cable through hole of each through current transformer in the two sets of transformer clamps and then to be in contact with/away from the conductive copper plate;
the fixed ends of two adjacent conductive copper rods in the two adjacent groups of verification structures are connected through a first flexible copper strip; the fixed ends of the two conductive copper rods positioned at the head end and the tail end in all the verification structures are respectively connected with the primary large-current power supply loop through second flexible copper strips.
Preferably, each of the transformer clamps includes: the U-shaped grooves are upwards opened and arranged in parallel, and the number of the U-shaped grooves corresponds to that of the through current transformers; and the size of the U-shaped groove is matched with that of the base of the straight-through current transformer.
Preferably, the number of the feedthrough current transformers with the same transformation ratio in each group of the transformer clamps is two.
Preferably, the two feedthrough current transformers are arranged back to back, and one side of each feedthrough current transformer, which is provided with a secondary side terminal, faces outwards;
two U-shaped groove outside one side all is provided with first elastic connecting piece, first elastic connecting piece includes: the first fixing piece is fixedly connected with the workbench and is connected with a first flexible copper sheet through a first spring;
the bases of the two punching current transformers are correspondingly arranged in the two U-shaped grooves respectively and then compress the first spring, and the first spring enables the secondary side terminal of the punching current transformer to be in close contact with the first flexible copper sheet under the action of elastic force; the first flexible copper sheet is electrically connected with the wiring terminal on the workbench.
Preferably, the two feedthrough current transformers are arranged back to back, and one side of each feedthrough current transformer, which is provided with a secondary side terminal, faces outwards;
a third elastic connecting piece and a fourth elastic connecting piece are respectively arranged on the outward sides of the U-shaped grooves;
the third elastic coupling member includes: the third fixing piece is connected with a third flexible copper sheet through a third spring and is connected with the workbench;
the fourth elastic coupling member includes: the fourth fixing piece is connected with a fourth flexible copper sheet through a fourth spring and is connected with the first insulating partition plate;
the bases of the two straight-through current transformers are correspondingly arranged in the two U-shaped grooves respectively, and when the first motor driving mechanism acts, the first insulating partition plate tightly presses the two straight-through current transformers between the third fixing piece and the fourth fixing piece in the process of approaching the conductive copper plate, so that the third flexible copper sheet and the fourth flexible copper sheet are correspondingly and respectively in close contact with the secondary side terminals of the two straight-through current transformers;
and the third flexible copper sheet and the fourth flexible copper sheet are electrically connected with the wiring terminal on the workbench.
Preferably, the two feedthrough current transformers are arranged in the same direction, and one side of each feedthrough current transformer, which is provided with a secondary side terminal, is arranged at one side close to the conductive copper plate;
one sides of the two U-shaped grooves in the penetrating direction of the cable through holes are provided with second elastic connecting pieces; the second elastic connecting member includes: the second fixing piece is fixedly connected with the workbench and is connected with a second flexible copper sheet through a second spring;
the opposite side of workstation still is provided with second advancing device, second advancing device includes: the first limiting plate and the second limiting plate are arranged in parallel; one end of the first limiting plate and one end of the second limiting plate are both connected with a second guide rod, and the second guide rod is connected with a second motor driving mechanism;
after bases of the two through current transformers are correspondingly arranged in the two U-shaped grooves respectively, the first limiting plate and the second limiting plate are correspondingly positioned on the other side, provided with the secondary side terminal, of the two through current transformers respectively;
when the second motor driving mechanism acts, the second guide rod drives the first limiting plate and the second limiting plate to move towards the direction of the second elastic connecting piece, so that the secondary side wiring end of the straight-through current transformer is in close contact with the second flexible copper sheet; and the second flexible copper sheet is electrically connected with the wiring terminal on the workbench.
Preferably, the extending end of the conductive copper rod is of a conical structure, and the conductive copper plate is provided with an inverted cone-shaped opening matched with the conical structure.
Preferably, the method further comprises the following steps: one end of the fifth spring is connected with the workbench, and the other end of the fifth spring is a free end;
the fifth spring is positioned on the other side of the contact surface of the conductive copper plate and the conductive copper rod, and the conductive copper plate is contacted with the free end of the fifth spring in the process that the extending end of the conductive copper rod is contacted with the conductive copper plate under the action of the first motor driving mechanism;
and a second insulating partition plate is arranged on the contact surface between the conductive copper plate and the free end of the fifth spring.
Preferably, a plurality of travel switches are arranged on the workbench, and the travel switches are electrically connected with the first motor driving mechanism;
the number of the travel switches corresponds to the number of the conductive copper plates;
when the fifth spring is compressed to exceed a preset value, the conductive copper plate is contacted with the travel switch;
and a third insulating partition plate is arranged on the contact surface of the conductive copper plate and the travel switch.
The utility model has the beneficial technical effects that:
1. the utility model relates to a punching current transformer batch detection device, which comprises: the detection device comprises a workbench, wherein a plurality of groups of detection structures are arranged on the workbench; each set of assay structures comprises: the transformer clamp comprises a conductive copper plate arranged on one side of a workbench, a first propelling device arranged on the other side of the workbench, and two groups of transformer clamps arranged between the conductive copper plate and the first propelling device side by side;
when in detection:
firstly, a plurality of straight-through current transformers with the same transformation ratio are arranged in each group of transformer clamps in parallel, and secondary side terminals of the straight-through current transformers are electrically connected with a current detector through terminals on a workbench; secondly, a first motor driving mechanism of the first propelling device acts to enable a first guide rod in the first propelling device to drive the extending ends of the two conductive copper rods to respectively penetrate through cable holes of each through current transformer in the two sets of transformer clamps correspondingly through a first insulating partition plate and then to be in contact with the conductive copper plates; the fixed ends of two adjacent conductive copper rods in the two adjacent groups of verification structures are connected through a first flexible copper strip; the fixed ends of two conductive copper rods positioned at the head end and the tail end in all the verification structures are respectively connected with a primary large-current power supply loop through second flexible copper strips; in the process, the conductive copper rod is in contact connection with the conductive copper plate through the action of the motor of the first propulsion device, so that a primary heavy-current power supply loop is conducted, and the wiring work of a primary side cable in the detection process is completed;
after the detection is finished:
a first motor driving mechanism of the first propelling device acts to enable a first guide rod in the first propelling device to drive the extending ends of the two conductive copper rods to correspondingly penetrate through the cable through holes of each through current transformer in the two sets of transformer clamps respectively through a first insulating partition plate and then to be far away from the conductive copper plates;
according to the utility model, the wiring work in the current transformer testing process is completed by an automatic means, the problems of complicated traditional manual wiring and easy error are avoided, the wiring efficiency can be effectively improved, the detection accuracy is improved, and the practicability is strong.
2. According to the utility model, the through-core current transformer can be clamped and arranged in the transformer clamp by virtue of the U-shaped groove, so that a threading fault caused by the displacement of the through-core current transformer can be effectively avoided.
3. According to the utility model, when the conductive copper rod is connected with the conductive copper plate, the conductive copper rod can generate impact force on the conductive copper plate, and the connection mode between the conductive copper rod and the conductive copper plate is flexible connection through the fifth spring, so that the collision between the conductive copper rod and the conductive copper plate is reduced, and the device is prevented from being damaged.
4. According to the utility model, when the first motor driving mechanism breaks down, the first guide rod still moves towards the direction of the conductive copper plate after the extending end of the conductive copper rod is possibly contacted with the conductive copper plate, at the moment, the conductive copper plate is contacted with the travel switch by arranging the travel switch when the compressed fifth spring exceeds a preset value, and the power supply of the first motor driving mechanism is cut off by the travel switch, so that accidents are avoided.
5. In the present invention, the installation manner of the plurality of feedthrough current transformers with the same transformation ratio in the transformer clamp may include: back-to-back arrangement and equidirectional arrangement;
when the two through current transformers are arranged back to back, the two through current transformers can be clamped and arranged together only by the two first elastic connecting pieces, so that secondary side wiring ends of the two through current transformers are respectively correspondingly in contact connection with the two first flexible copper sheets, wiring work of a secondary side cable is completed, and the operation is simple and convenient;
when arranging in the syntropy, only need push two first U-shaped grooves with two punching current transformer correspondences, afterwards, can be automatic through second motor drive mechanism accomplish punching current transformer's secondary side terminal and current detector's being connected easy operation, convenient to use, degree of automation height.
6. In the utility model, the fourth fixing piece is connected with the first insulating partition plate, so that during wiring:
firstly, correspondingly arranging bases of the two through current transformers in two U-shaped grooves respectively; the two through current transformers are placed in sequence from the left side, the through current transformer on the right side is in contact with a third flexible copper sheet but is not reliably connected, at the moment, a spring (in a free state) is in contact but is not firm, and the third spring is in a free state;
then, starting a first motor driving mechanism, enabling the first insulating partition plate to tightly press the two through current transformers between a third fixing piece and a fourth fixing piece in the process of approaching the conductive copper plate, and enabling the third flexible copper sheet and the fourth flexible copper sheet to be respectively and correspondingly in close contact with secondary side terminals of the two through current transformers;
in this embodiment, the same driving mechanism (the first motor driving mechanism) can drive the conductive copper rod and the fourth elastic connecting member to move synchronously in the process of approaching the first insulating partition to the conductive copper plate, and when a fourth flexible copper sheet of the fourth elastic connecting member is contacted with the feedthrough current transformer positioned on the left side, the fourth flexible copper sheet continues to move rightwards until the third flexible copper sheet and the fourth flexible copper sheet are respectively and correspondingly contacted with secondary side terminals of the two feedthrough current transformers tightly; in the utility model, in the process of completing the wiring of the primary side cable, the wiring work of the secondary side cable is synchronously completed, and the wiring firmness and the wiring efficiency are improved.
Drawings
Fig. 1 is a schematic structural diagram of a batch detection apparatus for a feedthrough current transformer according to an embodiment of the present invention;
fig. 2 is a side view structural diagram of a through current transformer batch detection apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating the connection of primary side cables in a batch detection apparatus for a feedthrough current transformer according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of the feedthrough current transformer in the u-shaped groove according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the connection between the feedthrough current transformer and the first flexible copper sheet according to the second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a through current transformer in a through current transformer batch detection apparatus according to a second embodiment of the present invention, which is arranged back to back;
fig. 7 is a schematic structural diagram of another implementation manner in which the feedthrough current transformers in the feedthrough current transformer batch detection apparatus according to the second embodiment of the present invention are arranged back to back;
fig. 8 is a schematic structural diagram of the feedthrough current transformers in the batch detection apparatus of feedthrough current transformers according to the second embodiment of the present invention arranged in the same direction;
in the figure:
10 is a workbench, 20 is a verification structure, 30 is a conductive copper plate, 40 is a first propulsion device, 50 is a transformer clamp, 60 is a feed-through current transformer, 70 is a first flexible copper strip, 80 is a second flexible copper strip, 90 is a second propulsion device, 100 is a controller, 110 is a fifth spring, 120 is a second insulating partition, 130 is a travel switch, and 140 is a fourth insulating partition;
101 is a fixing clamp;
401 is a first insulating partition plate, 402 is a conductive copper rod, 403 is a first guide rod, and 404 is a first motor driving mechanism;
501 is a U-shaped groove, and 502 is a first elastic connecting piece; 503 is a second elastic connector; 504 is a third elastic connector, 505 is a fourth elastic connector;
601 is a cable perforation;
901 is a first limit plate, 902 is a second limit plate, 903 is a second guide rod, and 904 is a second motor driving mechanism;
4031 is a guide sleeve;
5021 is a first fixing piece, 5022 is a first spring, and 5023 is a first flexible copper sheet;
5031 is a second fixing piece, 5032 is a second spring, and 5033 is a second flexible copper sheet.
5041 is a third fixing part, 5042 is a third spring, 5043 is a third flexible copper sheet;
5051 is a fourth fixing member, 5052 is a fourth spring, and 5053 is a fourth flexible copper sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
An embodiment of a batch detection device for a feedthrough current transformer is described in detail below with reference to the accompanying drawings.
Example one
Fig. 1 is a schematic structural diagram of a batch detection apparatus for a feedthrough current transformer according to an embodiment of the present invention; fig. 2 is a side view structural diagram of a through current transformer batch detection apparatus according to an embodiment of the present invention; as shown in fig. 1 and 2, a through current transformer batch detection apparatus includes: the calibration device comprises a workbench 10, wherein a plurality of groups of calibration structures 20 are arranged on the workbench 10;
each set of assay structures 20 comprises: the transformer clamp comprises a conductive copper plate 30 arranged on one side of a workbench 10, a first propelling device 40 arranged on the other side of the workbench 10, and two groups of transformer clamps 50 arranged between the conductive copper plate 30 and the first propelling device 40 side by side;
the two groups of mutual inductor clamps 50 are arranged side by side, and a plurality of straight-through current mutual inductors 60 with the same transformation ratio are arranged in each group of mutual inductor clamps 50 in parallel; a secondary side terminal of the feedthrough current transformer 60 is electrically connected with the current detector through a terminal on the workbench 10;
the first propulsion device 40 comprises: a first insulating partition 401 and two conductive copper rods 402 arranged side by side on the first insulating partition 401, wherein the first insulating partition 401 is connected with a first motor driving mechanism 404 through a first guide rod 403; when the first motor driving mechanism 404 acts, the first insulating partition 401 connected with the first guide rod 403 drives the extending ends of the two conductive copper rods 402 to respectively and correspondingly penetrate/leave the cable through holes 601 of each through current transformer 60 in the two sets of transformer clamps 50 and then contact/leave the conductive copper plate 30;
the fixed ends of two adjacent conductive copper rods 402 in two adjacent groups of verification structures 20 are connected through a first flexible copper strip 70; the fixed ends of the two conductive copper rods 402 at the head and tail ends of all the verification structures 20 are respectively connected with the primary large-current power supply loop through the second flexible copper strip 80.
In this embodiment, the worktable 10 is further provided with a fixing clamp 101 for fixing the first flexible copper strip 70 and the second flexible copper strip 80; the first guide bar 403 may be provided with a guide sleeve 4031.
Fig. 3 is a schematic diagram illustrating the connection of primary side cables in a batch detection apparatus for a feedthrough current transformer according to an embodiment of the present invention; as shown in fig. 3, in the present invention, every two feedthrough current transformers 60 are grouped and placed in parallel in a transformer fixture, and secondary side terminals (marked as S1 and S2 in the figure) of each feedthrough current transformer 60 are electrically connected to a current detector through terminals on a worktable 10; every two feedthrough current transformers 60 (the first feedthrough current transformer and the second feedthrough current transformer, the third feedthrough current transformer and the fourth feedthrough current transformer, …, the (N-1) th feedthrough current transformer and the Nth feedthrough current transformer) share N/2 conductive copper plates 30;
the first motor driving structure in the utility model drives the conductive copper rod 402 connected with the first insulating partition 401 to stretch in an electric or pneumatic mode, so as to achieve the purpose of contacting and connecting with the conductive copper plate 30 after penetrating through the cable through hole 601 of the through current transformer 60, thereby completing the wiring work of the primary side cable in the detection process.
Fig. 4 is a schematic view of an installation structure of the feedthrough current transformer in the u-shaped groove according to an embodiment of the present invention; as shown in fig. 4, each of the transformer clamps 50 includes: a plurality of U-shaped grooves 501 which are upward opened and arranged in parallel, wherein the number of the U-shaped grooves 501 corresponds to the number of the through current transformers 60; and the size of the u-shaped groove 501 is adapted to the size of the base of the feedthrough current transformer 60.
Specifically, the number of the feedthrough current transformers 60 having the same transformation ratio in each set of the transformer clamps 50 is two.
Further, the extending end of the conductive copper rod 402 is a conical structure, and the conductive copper plate 30 is provided with an inverted cone-shaped opening matched with the conical structure; in this embodiment, the conical structure and the inverted conical opening are matched, so that the contact area between the conductive copper rod 402 and the conductive copper plate 30 can be increased, and the connection reliability can be improved.
Further, the present invention also includes: one end of the fifth spring 110 is connected with the workbench 10, and the other end of the fifth spring 110 is a free end; the fifth spring 110 is located at the other side of the contact surface between the conductive copper plate 30 and the conductive copper rod 402, and the conductive copper plate 30 is in contact with the free end of the fifth spring 110 in the process that the first motor driving mechanism 404 acts to make the extending end of the conductive copper rod 402 in contact with the conductive copper plate 30; a second insulating partition plate 120 is arranged on the contact surface between the conductive copper plate 30 and the free end of the fifth spring 110; in this embodiment, when the conductive copper rod 402 is connected to the conductive copper plate 30, the conductive copper rod 402 may generate an impact force on the conductive copper plate 30, and the fifth spring makes the connection between the conductive copper rod 402 and the conductive copper plate 30 flexible, so as to reduce the impact between the conductive copper rod 402 and the conductive copper plate 30 and prevent the device from being damaged.
Furthermore, a plurality of travel switches 130 are disposed on the working platform 10, and the travel switches 130 are electrically connected to the first motor driving mechanism 404; the number of the travel switches 130 corresponds to the number of the conductive copper plates 30; the first motor driving mechanism 404 is used for contacting the extending end of the conductive copper rod 402 with the conductive copper plate 30, and when the fifth spring 110 is compressed to exceed a preset value, the conductive copper plate 30 is contacted with the travel switch 130; a third insulating partition plate 140 is disposed on the contact surface of the conductive copper plate 30 with the travel switch 130.
In this embodiment, when the first motor driving mechanism 404 has a fault, the first guiding rod 403 may still move towards the conductive copper plate after the protruding end of the conductive copper rod 402 contacts with the conductive copper plate 30, at this time, by setting the travel switch, when the compressed fifth spring 110 exceeds a preset value, the conductive copper plate 30 contacts with the travel switch 130, and the power supply of the first motor driving mechanism 404 is cut off by the travel switch 130, so as to avoid an accident.
In this embodiment, a punching current transformer batch detection device includes: the calibration device comprises a workbench 10, wherein a plurality of groups of calibration structures 20 are arranged on the workbench 10; each set of assay structures 20 comprises: the transformer clamp comprises a conductive copper plate 30 arranged on one side of a workbench 10, a first propelling device 40 arranged on the other side of the workbench 10, and two groups of transformer clamps 50 which are arranged between the conductive copper plate 30 and the first propelling device 40 and are arranged side by side;
when in detection:
firstly, a plurality of straight-through current transformers 60 with the same transformation ratio are arranged in parallel in each group of transformer clamps 50, and secondary side terminals of the straight-through current transformers 60 are electrically connected with a current detector through terminals on a workbench 10;
secondly, the first motor driving mechanism 404 of the first propulsion device 40 acts, so that the first guide rod 403 in the first propulsion device 40 drives the extending ends of the two conductive copper rods 402 to respectively penetrate through the cable through holes 601 of each through current transformer 60 in the two sets of transformer clamps 50 correspondingly through the first insulating partition 401, and then the two conductive copper rods are contacted with the conductive copper plate 30; the fixed ends of two adjacent conductive copper rods 402 in two adjacent groups of verification structures 20 are connected through a first flexible copper strip 70; the fixed ends of the two conductive copper rods 402 at the head and tail ends of all the verification structures 20 are respectively connected with the primary large-current power supply loop through the second flexible copper strips 80;
in the above process, the motor of the first propulsion device 40 acts to connect the conductive copper rod 402 with the conductive copper plate 30 in a contact manner, so that the primary high-current power supply loop is conducted, and the wiring work of the primary side cable in the detection process is completed;
after the detection is finished:
the first motor driving mechanism 404 of the first pushing device 40 acts to make the first guiding rod 403 in the first pushing device 40 drive the extending ends of the two conductive copper rods 402 to correspondingly penetrate through the cable through holes 601 of each through current transformer 60 in the two sets of transformer clamps 50 through the first insulating partition 401, and then to be far away from the conductive copper plate 30;
according to the utility model, the wiring work in the current transformer testing process is completed by an automatic means, the problems of complicated traditional manual wiring and easy error are avoided, the wiring efficiency can be effectively improved, the detection accuracy is improved, and the practicability is strong.
In the utility model, the through-core current transformer 60 can be tightly clamped in the transformer clamp 50 by the U-shaped groove 501, and the threading fault caused by the displacement of the through-core current transformer 60 can be effectively avoided.
Example two
In the present invention, the installation manner of the plurality of feedthrough current transformers 60 with the same transformation ratio in the transformer fixture 50 may include: back-to-back arrangement and equidirectional arrangement.
FIG. 5 is a schematic diagram of the connection between the feedthrough current transformer and the first flexible copper sheet according to the second embodiment of the present invention; fig. 6 is a schematic structural diagram of a through current transformer in a through current transformer batch detection apparatus according to a second embodiment of the present invention, which is arranged back to back; as shown in fig. 5 and 6, on the basis of the first embodiment, in the apparatus for detecting the batches of the feedthrough current transformers, two feedthrough current transformers 60 are arranged back to back, and one side of each feedthrough current transformer 60 having a secondary side terminal faces outward;
two outside one sides of U-shaped groove 501 all are provided with first elastic connector 502, first elastic connector 502 includes: the first fixing piece 5021 is fixedly connected with the workbench, and the first fixing piece 5021 is connected with a first flexible copper sheet 5023 through a first spring 5022;
the bases of the two feedthrough current transformers 60 are respectively and correspondingly arranged in the two U-shaped grooves 501 and then compress the first spring 5022, and the first spring 5022 enables the secondary side terminal of the feedthrough current transformer 60 to be in close contact with the first flexible copper sheet 5023 under the action of elastic force; the first flexible copper sheet 5023 is electrically connected with the terminal on the workbench 10.
In the second embodiment, after the bases of the feedthrough current transformers 60 are fixed in the u-shaped groove 501, the secondary side terminals of the two feedthrough current transformers 60 are present at the outer end, and at this time, the secondary side terminals of the feedthrough current transformers 60 are electrically connected with the current detector through the terminal on the workbench 10 in a crimping manner (usually, the current is 5A);
specifically, when two of the feedthrough current transformers 60 in the second embodiment are installed:
first, a first feedthrough current transformer 60 is pushed into a first u-shaped groove 501, and the side of the first feedthrough current transformer 60 having the secondary side terminal is in contact with a first spring 5022;
secondly, a force is applied to the second feedthrough current transformer 60 in the direction of the first feedthrough current transformer 60, and after the first spring 5022 is pressed, an operation space is formed between the second feedthrough current transformer 60 and the second U-shaped groove 502;
thirdly, the second feedthrough current transformer 60 is pushed into the second u-shaped groove 501, and at this time, the two first springs 5022 apply force to the two feedthrough current transformers 60 respectively under the action of elastic force, so that the two feedthrough current transformers 60 are abutted together; meanwhile, the two first flexible copper sheets 5023 respectively and correspondingly contact with the secondary side terminals of the two feedthrough current transformers 60 tightly to complete the electrical connection with the current detector.
In the second embodiment, only two first elastic connecting pieces 502 are needed, the two feedthrough current transformers 60 can be clamped together, so that the secondary side terminals of the two feedthrough current transformers 60 are respectively connected with the two first flexible copper sheets 5023 in a contact manner, and the wiring work of the secondary side cable is completed, and the operation is simple and convenient.
Fig. 7 is a schematic structural diagram of another implementation manner in which the feedthrough current transformers in the feedthrough current transformer batch detection apparatus according to the second embodiment of the present invention are arranged back to back, and fig. 7 is a schematic structural diagram of a process in which the first motor driving mechanism approaches the conductive copper plate; as shown in fig. 7, two of the feedthrough current transformers 60 are arranged back to back, and one side of the feedthrough current transformer 60 having a secondary side terminal faces outward;
a third elastic connecting piece 504 and a fourth elastic connecting piece 505 are respectively arranged on the outward sides of the two U-shaped grooves 501;
the third elastic connection 504 includes: a third fixing member 5041, the third fixing member 5041 is connected with a third flexible copper sheet 5043 through a third spring 5042, and the third fixing member 5041 is connected with the workbench 10;
the fourth elastic connection 505 includes: a fourth fixing member 5051, wherein the fourth fixing member 5051 is connected with a fourth flexible copper sheet 5053 through a fourth spring 5052, and the fourth fixing member 5051 is connected with the first insulating barrier 401;
the bases of the two feedthrough current transformers 60 are respectively and correspondingly arranged in the two U-shaped grooves 501, when the first motor driving mechanism 404 acts, the first insulating partition plate 401 presses the two feedthrough current transformers 60 between the third fixing piece 5041 and the fourth fixing piece 5051 in the process of approaching the conductive copper plate 30, and the third flexible copper sheet 5043 and the fourth flexible copper sheet 5053 are respectively and correspondingly in close contact with the secondary side terminals of the two feedthrough current transformers 60;
the third flexible copper sheet 5043 and the fourth flexible copper sheet 5053 are electrically connected with a terminal on the workbench 10.
In this embodiment, the conductive copper plate 30 is spaced apart from the fourth fixing section 5051.
As shown in fig. 7, in this embodiment, by connecting the fourth fixing member 5051 to the first insulating partition 401, at the time of wiring:
firstly, the bases of the two through current transformers 60 are respectively and correspondingly arranged in the two U-shaped grooves 501; the two back-to-back feed-through current transformers 60 are sequentially placed from the left side, the feed-through current transformer 60 on the right side is in contact with the third flexible copper sheet 5043 but is not reliably connected, at the moment, the springs (in a free state) are in contact but are not firm, and the third spring 5042 is in a free state;
then, the first motor driving mechanism 404 is started, so that the first insulating partition 401 presses and arranges the two feedthrough current transformers 60 between the third fixing piece 5041 and the fourth fixing piece 5051 in the process of approaching the conductive copper plate 30, and the third flexible copper sheet 5043 and the fourth flexible copper sheet 5053 respectively and correspondingly and tightly contact the secondary side terminals of the two feedthrough current transformers 60;
in this embodiment, the same driving mechanism (the first motor driving mechanism 404) can drive the conductive copper rod 402 and the fourth elastic connecting member 505 to move synchronously in the process of approaching the first insulating partition 401 to the conductive copper plate 30, and when the fourth flexible copper sheet 5053 of the fourth elastic connecting member 505 contacts with the feedthrough current transformer 60 located on the left side, the fourth flexible copper sheet 5053 continues to move rightward until the third flexible copper sheet 5043 and the fourth flexible copper sheet 5053 respectively and correspondingly contact with the secondary side terminals of the two feedthrough current transformers 60 tightly; in the utility model, in the process of completing the wiring of the primary side cable, the wiring work of the secondary side cable is synchronously completed, and the wiring firmness and the wiring efficiency are improved.
EXAMPLE III
Fig. 8 is a schematic structural diagram of the feedthrough current transformers in the batch detection apparatus of feedthrough current transformers according to the second embodiment of the present invention arranged in the same direction; as shown in fig. 8, on the basis of the first embodiment, in a batch inspection apparatus of feedthrough current transformers, two feedthrough current transformers 60 are arranged in the same direction, and the side of the feedthrough current transformers 60 having the secondary side terminals is disposed at the side close to the conductive copper plate 30;
one sides of the two U-shaped grooves 501 in the penetrating direction of the cable through hole 601 are provided with second elastic connecting pieces 503; the second elastic connection member 503 includes: a second fixing member 5031 fixedly connected with the workbench, wherein the second fixing member 5031 is connected with a second flexible copper sheet 5033 through a second spring 5032;
the other side of the working platform 10 is further provided with a second propelling device 90, and the second propelling device 90 comprises: a first limit plate 901 and a second limit plate 902 which are arranged in parallel; one end of the first limiting plate 901 and one end of the second limiting plate 902 are both connected with a second guide rod 903, and the second guide rod 903 is connected with a second motor driving mechanism 904;
after the bases of the two feedthrough current transformers 60 are correspondingly installed in the two u-shaped grooves 501, the first limiting plate 901 and the second limiting plate 902 are correspondingly located on the other side of the two feedthrough current transformers 60 with the secondary side terminal;
when the second motor driving mechanism 904 acts, the second guide rod 903 drives the first limiting plate 901 and the second limiting plate 902 to move towards the second elastic connecting piece 503, so that the secondary side terminal of the feedthrough current transformer 60 is in close contact with the second flexible copper sheet 5033; the second flexible copper sheet 5033 is electrically connected to a terminal on the worktable 10.
Specifically, when two of the feedthrough current transformers 60 in the third embodiment are installed:
first, two feedthrough current transformers 60 are respectively pushed into two first u-shaped grooves 501 correspondingly, and one side of each feedthrough current transformer 60 having a secondary side terminal is in contact with a first spring 5032; at this time, the side of the feedthrough current transformer 60 having the secondary side terminal is located on the side close to the conductive copper plate 30; the first limiting plate 901 and the second limiting plate 902 are respectively and correspondingly positioned on the other side of the two feedthrough current transformers 60 with the secondary side terminal;
secondly, when the second motor driving mechanism 904 acts, the second guide rod 903 drives the first limiting plate 901 and the second limiting plate 902 to move towards the second elastic connecting piece 503, and the first limiting plate 901 and the second limiting plate 902 drive the feedthrough current transformer 60 to apply a force to the second spring 5032 until the secondary side terminal of the feedthrough current transformer 60 is in close contact with the second flexible copper sheet 5033; completing the electrical connection with the current detector.
In the third embodiment, only two first u-shaped grooves 501 corresponding to the two feedthrough current transformers 60 need to be pushed, and then, the secondary side terminal of the feedthrough current transformer 60 can be automatically connected with the current detector through the second motor driving mechanism 904, so that the operation is simple, the use is convenient, and the automation degree is high.
The first motor driving mechanism 404 and the second motor driving mechanism 904 in the present invention both use the air cylinder or the stepping motor in the prior art.
When a stepping motor in the prior art is adopted:
the first motor drive mechanism 404 may include: the motor is connected with the screw rod through the transmission mechanism (which can be a coupler), and the screw rod nut is connected with the screw rod in a matching way; a fixed plate is fixed on the screw rod nut;
the first guide rod 403 is fixedly connected with the screw nut through a fixing plate;
when the first motor driving mechanism 404 is operated, the motor drives the screw rod to move in a telescopic manner, so as to drive the first guide rod 403 to move in a telescopic manner (to approach/depart from the conductive copper plate 30);
in order to ensure the smoothness of the first guiding rod 403 during the telescopic movement, the guiding sleeve 4031 may be sleeved on the first guiding rod 403 to prevent the first guiding rod 403 from deflecting.
In conclusion, the utility model provides the punching current transformer batch detection device, which completes the wiring work in the current transformer test process through an automatic means, avoids the problems of complicated traditional manual wiring and easy error, and can effectively improve the wiring efficiency, thereby improving the detection accuracy rate and having extremely strong practicability
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A punching current transformer batch detection device comprises: workstation (10), its characterized in that: a plurality of groups of verification structures (20) are arranged on the workbench (10);
each set of assay structures (20) comprises: the transformer clamp comprises a conductive copper plate (30) arranged on one side of a workbench (10), a first propelling device (40) arranged on the other side of the workbench (10), and two groups of transformer clamps (50) arranged between the conductive copper plate (30) and the first propelling device (40) side by side;
a plurality of straight-through current transformers (60) with the same transformation ratio are arranged in each group of the transformer clamp (50) in parallel; a secondary side terminal of the straight-through current transformer (60) is electrically connected with the current detector through a binding post on the workbench (10);
the first propulsion device (40) comprises: the device comprises a first insulating partition plate (401) and two conductive copper rods (402) arranged on the first insulating partition plate (401) side by side, wherein the first insulating partition plate (401) is connected with a first motor driving mechanism (404) through a first guide rod (403);
when a first motor driving mechanism (404) acts, a first insulating partition plate (401) connected with a first guide rod (403) drives the extending ends of two conductive copper rods (402) to respectively and correspondingly penetrate through/leave a cable perforation hole (601) of each through current transformer (60) in two groups of transformer clamps (50) and then to be in contact with/away from a conductive copper plate (30);
the fixed ends of two adjacent conductive copper rods (402) in two adjacent groups of verification structures (20) are connected through a first flexible copper strip (70); the fixed ends of two conductive copper rods (402) positioned at the head end and the tail end in all the verification structures (20) are respectively connected with a primary large-current power supply loop through a second flexible copper strip (80).
2. The batch detection device for the feedthrough current transformers according to claim 1, wherein: each of the transformer clamps (50) includes: the U-shaped grooves (501) are upwards opened and arranged in parallel, and the number of the U-shaped grooves (501) corresponds to that of the through current transformers (60); and the size of the U-shaped groove (501) is matched with the size of the base of the straight-through current transformer (60).
3. The batch detection device for the feedthrough current transformers according to claim 2, wherein: the number of the straight-through current transformers (60) with the same transformation ratio in each group of the transformer clamp (50) is two.
4. The batch detection device for the feedthrough current transformers according to claim 3, wherein: the two through current transformers (60) are arranged back to back, and one side of each through current transformer (60) with a secondary side terminal faces outwards;
two outside one side of U-shaped groove (501) all is provided with first elastic connector (502), first elastic connector (502) include: the first fixing piece (5021) is fixedly connected with the workbench, and the first fixing piece (5021) is connected with a first flexible copper sheet (5023) through a first spring (5022);
the bases of the two core-penetrating current transformers (60) are correspondingly arranged in the two U-shaped grooves (501) respectively and then compress the first spring (5022), and the first spring (5022) enables the secondary side terminal of the core-penetrating current transformer (60) to be in close contact with the first flexible copper sheet (5023) under the action of elastic force; the first flexible copper sheet (5023) is electrically connected with a wiring terminal on the workbench (10).
5. The batch detection device for the feedthrough current transformers according to claim 3, wherein: the two through current transformers (60) are arranged back to back, and one side of each through current transformer (60) with a secondary side terminal faces outwards;
a third elastic connecting piece (504) and a fourth elastic connecting piece (505) are respectively arranged on the outward sides of the U-shaped grooves (501);
the third elastic connector (504) comprises: the third fixing piece (5041), the third fixing piece (5041) is connected with a third flexible copper sheet (5043) through a third spring (5042), and the third fixing piece (5041) is connected with the workbench (10);
said fourth elastic connection (505) comprising: a fourth fixing piece (5051), a fourth flexible copper sheet (5053) is connected to the fourth fixing piece (5051) through a fourth spring (5052), and the fourth fixing piece (5051) is connected with the first insulating partition (401);
the bases of the two through current transformers (60) are correspondingly arranged in the two U-shaped grooves (501) respectively, when the first motor driving mechanism (404) acts, the first insulating partition plate (401) presses the two through current transformers (60) between the third fixing piece (5041) and the fourth fixing piece (5051) in the process of approaching the conducting copper plate (30), and the third flexible copper sheet (5043) and the fourth flexible copper sheet (5053) are correspondingly and respectively in close contact with the secondary side terminals of the two through current transformers (60);
the third flexible copper sheet (5043) and the fourth flexible copper sheet (5053) are electrically connected with a wiring terminal on the workbench (10).
6. The batch detection device for the feedthrough current transformers according to claim 3, wherein: the two feedthrough current transformers (60) are arranged in the same direction, and one side of each feedthrough current transformer (60) with a secondary side terminal is arranged at one side close to the conductive copper plate (30);
one sides of the two U-shaped grooves (501) in the penetrating direction of the cable through holes (601) are provided with second elastic connecting pieces (503); the second elastic connector (503) comprises: the second fixing piece (5031) is fixedly connected with the workbench, and the second fixing piece (5031) is connected with a second flexible copper sheet (5033) through a second spring (5032);
the other side of workstation (10) still is provided with second advancing device (90), second advancing device (90) include: a first limiting plate (901) and a second limiting plate (902) which are arranged in parallel; one end of the first limiting plate (901) and one end of the second limiting plate (902) are both connected with a second guide rod (903), and the second guide rod (903) is connected with a second motor driving mechanism (904);
after bases of the two through current transformers (60) are correspondingly arranged in the two U-shaped grooves (501), the first limiting plate (901) and the second limiting plate (902) are correspondingly arranged on the other sides of the two through current transformers (60) with secondary side terminals;
when the second motor driving mechanism (904) acts, the second guide rod (903) drives the first limiting plate (901) and the second limiting plate (902) to move towards the direction of the second elastic connecting piece (503), so that the secondary side terminal of the feedthrough current transformer (60) is in close contact with the second flexible copper sheet (5033); the second flexible copper sheet (5033) is electrically connected with a wiring terminal on the workbench (10).
7. The batch detection device for the feedthrough current transformers according to claim 1, wherein: the extension end of the conductive copper rod (402) is of a conical structure, and an inverted cone-shaped opening matched with the conical structure is formed in the conductive copper plate (30).
8. The batch detection device for the feedthrough current transformers according to claim 1, wherein: further comprising: one end of the fifth spring (110) is connected with the workbench (10), and the other end of the fifth spring (110) is a free end;
the fifth spring (110) is positioned on the other side of the contact surface of the conductive copper plate (30) and the conductive copper rod (402), and the conductive copper plate (30) is contacted with the free end of the fifth spring (110) in the process that the extending end of the conductive copper rod (402) is contacted with the conductive copper plate (30) under the action of the first motor driving mechanism (404);
and a second insulating partition plate (120) is arranged on the contact surface between the conductive copper plate (30) and the free end of the fifth spring (110).
9. The batch detection device for the feedthrough current transformers according to claim 8, wherein: a plurality of travel switches (130) are arranged on the workbench (10), and the travel switches (130) are electrically connected with a first motor driving mechanism (404);
the number of the travel switches (130) corresponds to the number of the conductive copper plates (30);
the first motor driving mechanism (404) is used for enabling the extending end of the conductive copper rod (402) to be in contact with the conductive copper plate (30), and when the fifth spring (110) is compressed to exceed a preset value, the conductive copper plate (30) is in contact with the travel switch (130);
and a third insulating partition plate (140) is arranged on the contact surface of the conductive copper plate (30) and the travel switch (130).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927246.5U CN215953834U (en) | 2021-08-17 | 2021-08-17 | Punching current transformer batch detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121927246.5U CN215953834U (en) | 2021-08-17 | 2021-08-17 | Punching current transformer batch detection device |
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| CN215953834U true CN215953834U (en) | 2022-03-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540161A (en) * | 2023-05-04 | 2023-08-04 | 武汉伏特科技检测有限公司 | Current sensor fault detection device |
| CN116699190A (en) * | 2023-05-19 | 2023-09-05 | 湖北大二互科技股份有限公司 | Auxiliary wiring device for batch verification of mutual inductors |
| CN117192174A (en) * | 2023-11-06 | 2023-12-08 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
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2021
- 2021-08-17 CN CN202121927246.5U patent/CN215953834U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540161A (en) * | 2023-05-04 | 2023-08-04 | 武汉伏特科技检测有限公司 | Current sensor fault detection device |
| CN116540161B (en) * | 2023-05-04 | 2023-10-27 | 武汉伏特科技检测有限公司 | Current sensor fault detection device |
| CN116699190A (en) * | 2023-05-19 | 2023-09-05 | 湖北大二互科技股份有限公司 | Auxiliary wiring device for batch verification of mutual inductors |
| CN116699190B (en) * | 2023-05-19 | 2023-12-01 | 湖北大二互科技股份有限公司 | Auxiliary wiring device for batch verification of mutual inductors |
| CN117192174A (en) * | 2023-11-06 | 2023-12-08 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
| CN117192174B (en) * | 2023-11-06 | 2024-01-26 | 山西互感器电测设备有限公司 | Automatic contact device for primary current loop |
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