An insulating resistor-capacitor separation leakage current transformer

Abstract

This utility model relates to the field of current transformer technology, and in particular to an insulated, RC-separated leakage current transformer, comprising a base, with a main body on top of the base; a placement seat on top of the main body, with a slot inside the placement seat, into which a plug box is inserted; springs evenly spaced and horizontally distributed on both sides of the bottom inner wall of the plug box; a lifting plate at the top of the springs; and sliding plates on both sides of the top outer wall of the lifting plate; a light-transmitting plate inside the slot; and a groove on the bottom outer wall of the base. Through the springs and sliding plates, when the operator pulls the plug box, the plug box drives the sliding plates to move synchronously. During the displacement, the inclined structure of the sliding plates causes the lifting plate to move vertically through the action of the springs, thereby smoothly lifting the label paper. This design makes label paper replacement more convenient, significantly improving the ease of use and practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, and in particular to an insulating RC-separated leakage current transformer. Background Technology

[0002] A leakage current transformer is a sensor used to detect leakage current in a circuit. Its core principle is to monitor the vector sum of the main circuit current passing through it in real time through electromagnetic induction. Under normal operation, the current in the live wire and the neutral wire are equal in magnitude and opposite in direction, and the vector sum is zero. If leakage occurs (such as current flowing into the ground through the human body or the casing of equipment), the vector sum of the main circuit current is no longer zero, and a weak current signal proportional to the leakage current will be induced on the secondary side of the transformer.

[0003] However, most similar devices on the market require different labels to be replaced in actual use so that they can be observed when multiple devices are used for testing. However, the inconvenience of label replacement or retrieval in such devices leads to low user efficiency, which not only affects the user experience but also hinders the market promotion of the product and significantly weakens the practical value of the device. Summary of the Invention

[0004] In view of the problems existing in the above or prior art, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an insulating resistor-capacitor separation leakage current transformer, including a base, the top of which is provided with a main body;

[0006] The main body is provided with a placement seat on top, and a slot is provided inside the placement seat. A box is inserted into the slot. Springs are provided on both sides of the bottom inner wall of the box in a horizontally distributed structure at equal intervals. A lifting plate is provided at the top of the springs. Slide plates are provided on both sides of the top outer wall of the lifting plate.

[0007] As a preferred embodiment of the insulating resistor-capacitor separation leakage current transformer of this utility model, the slot is provided with a light-transmitting plate, and the bottom outer wall of the base is provided with a groove.

[0008] As a preferred embodiment of the insulating resistance-capacitance separation leakage current transformer of this utility model, wherein: a plurality of suction cups are provided inside the groove, and the suction cups are distributed in a horizontal structure.

[0009] As a preferred embodiment of the insulating resistance-capacitance separation leakage current transformer of this utility model, wherein: deformation plates are provided on both sides of the inside of the groove, and a locking block is provided on the side adjacent to the deformation plate.

[0010] As a preferred embodiment of the present invention, an insulating resistor-capacitor separation leakage current transformer is provided, wherein: a protective plate is inserted into the inside of the groove, an auxiliary plate is provided on the top outer wall of the protective plate, through slots are opened on both sides of the bottom outer wall of the protective plate, and snap-fit ​​blocks are provided on both sides of the top outer wall of the protective plate.

[0011] As a preferred embodiment of the insulating resistance-capacitance separation leakage current transformer of this utility model, the base has connection holes on both sides of the bottom outer wall, a connection wire is provided on one side of the bottom outer wall of the base, and a connector is provided at the connection point of one end of the connection wire.

[0012] The beneficial effects of this utility model are as follows: With the spring and sliding plate, when the operator pulls the insert box, the insert box drives the sliding plate to move synchronously. During the displacement process, the sliding plate uses its inclined structure to make the lifting plate move vertically through the action of the spring, thereby smoothly lifting the label paper. This design makes the label paper replacement operation more convenient and significantly improves the ease of use and practicality of the device.

[0013] With the suction cups in place, when the base is positioned in the designated location, the suction cups can assist in positioning the device through negative pressure adsorption, making it easier for users to carry out subsequent installation and fixing operations. At the same time, through the cooperative structure of the deformation plate, the locking block and the locking block, the protective plate can be quickly installed and removed. This design can protect the suction cup from external damage when not in operation, and ensure that the suction cup function is not affected when it is needed, thus taking into account both protection and functionality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an insulating resistor-capacitor separation leakage current transformer.

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of an insulating resistor-capacitor separation leakage current transformer.

[0017] Figure 3 This is a schematic diagram of the card block and the card connector structure of an insulating resistor-capacitor separation leakage current transformer.

[0018] Figure 4 This is a schematic diagram of the chuck structure of an insulating RC separation leakage current transformer.

[0019] Figure 5 This is a schematic diagram of the mounting structure for an insulating resistor-capacitor separation leakage current transformer.

[0020] In the diagram: 1. Base; 2. Main body; 3. Placement seat; 4. Slot; 5. Insert box; 6. Lifting plate; 7. Slide plate; 8. Spring; 9. Light-transmitting plate; 10. Groove; 11. Suction cup; 12. Deformation plate; 13. Locking block; 14. Protective plate; 15. Auxiliary plate; 16. Through groove; 17. Locking block; 18. Connecting hole; 19. Connecting wire; 20. Connector. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1, referring to Figures 1 to 5 This is the first embodiment of the present utility model. This embodiment provides an insulating resistor-capacitor separation leakage current transformer, including a base 1, and a main body 2 is provided on the top of the base 1.

[0025] The main body 2 has a placement base 3 on its top, and a slot 4 is provided inside the placement base 3. A box 5 is inserted into the slot 4. Springs 8 are arranged horizontally at equal intervals on both sides of the bottom inner wall of the box 5. A lifting plate 6 is provided at the top of the springs 8. Slide plates 7 are provided on both sides of the top outer wall of the lifting plate 6. When the box 5 is pulled, the box 5 can drive the lifting plate 6 to move. During the movement of the lifting plate 6, the slide plates 7 will move. During the movement of the slide plates 7, the springs 8 can use the spring force to drive the lifting plate 6 to rise. At this time, the user can place the label paper with the specified number on the top of the lifting plate 6 as needed. A light-transmitting plate 9 is provided inside the slot 4. A groove 10 is provided on the bottom outer wall of the base 1. The main body 2 is the main body of the detection device of the device. This structure is composed of an iron core, primary and secondary windings. Based on the principle of electromagnetic induction, the high current / high voltage of the primary winding is converted into a low current / low voltage of the secondary winding through the turns ratio to achieve measurement and electrical isolation.

[0026] Reference Figure 2 , Figure 3 and Figure 4 The groove 10 has several suction cups 11 arranged horizontally, which facilitates the user's adsorption and fixation of the device. Deformation plates 12 are arranged on both sides of the groove 10, and a locking block 13 is arranged on the adjacent side of the deformation plate 12. The deformation plate 12 can deform, and when the deformation plate 12 moves, it will drive the locking block 13 to move. A protective plate 14 is inserted into the groove 10. An auxiliary plate 15 is arranged on the top outer wall of the protective plate 14. Through slots 16 are opened on both sides of the bottom outer wall of the protective plate 14. Locking blocks 17 are arranged on both sides of the top outer wall of the protective plate 14. When the deformation plate 12 is pulled, the deformation plate 12 will drive the locking block 13 to move, so that the locking block 13 will disengage from the locking block 17, so that the user can disassemble the protective plate 14.

[0027] Reference Figure 1 and Figure 3 The base 1 has connection holes 18 on both sides of the bottom outer wall, and a connection wire 19 is provided on one side of the bottom outer wall of the base 1. A connector 20 is provided at the wiring end of the connection wire 19. The connection wire 19 can connect to the device, and the connector 20 can facilitate the user to connect external devices.

[0028] Working principle: First, place the device in the designated position, then pull the deformation plate 12. The deformation plate 12 will drive the locking block 13 to move, causing the locking block 13 to exit the interior of the locking block 17. At this time, the user can disassemble the protective plate 14. Then, the device is attracted to the designated position by the suction cup 11. Subsequently, the device is fixed to the designated position by the connecting hole 18 and bolts. Then, pull the insertion box 5 according to the specifications of the detection line. The insertion box 5 drives the lifting plate 6 to move. When the lifting plate 6 moves, it drives the sliding plate 7 to move. When the sliding plate 7 continues to move, the spring 8 can use the spring force to drive the lifting plate 6 to rise. At this time, the user can place the label paper with the specified number on the top of the lifting plate 6 as needed. Finally, insert the insertion box 5 into the interior of the placement base 3.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An isolated capacitance-resistance separated leakage current transformer, characterized by: Includes a base (1), and the top of the base (1) is provided with a main body (2); The main body (2) is provided with a placement seat (3) at the top. The placement seat (3) has a slot (4) inside. A box (5) is inserted into the slot (4). Springs (8) are arranged at equal distances and horizontally distributed on both sides of the bottom inner wall of the box (5). A lifting plate (6) is provided at the top of the spring (8). A sliding plate (7) is provided on both sides of the top outer wall of the lifting plate (6).

2. The insulated resistive-capacitive separated leakage current transformer of claim 1, wherein: The slot (4) is provided with a light-transmitting plate (9), and the bottom outer wall of the base (1) is provided with a groove (10).

3. An insulated resistive-capacitive separated leakage current transformer as claimed in claim 2, characterized in that: The groove (10) is provided with a number of suction cups (11), which are distributed in a horizontal structure.

4. The insulated resistive-capacitive separated leakage current transformer of claim 2, wherein: Deformation plates (12) are provided on both sides of the inside of the groove (10), and a locking block (13) is provided on the side adjacent to the deformation plate (12).

5. An insulating resistor-capacitor separation leakage current transformer as described in claim 2, characterized in that: A protective plate (14) is inserted into the inside of the groove (10). An auxiliary plate (15) is provided on the top outer wall of the protective plate (14). Through slots (16) are opened on both sides of the bottom outer wall of the protective plate (14). A snap-fit ​​block (17) is provided on both sides of the top outer wall of the protective plate (14).

6. The insulated resistive-capacitive separated leakage current transformer of claim 1, wherein: The base (1) has connection holes (18) on both sides of the bottom outer wall, and a connection line (19) is provided on one side of the bottom outer wall of the base (1). A connector (20) is provided at the connection point of one end of the connection line (19).

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