Low-voltage power distribution data acquisition device

Abstract

The utility model relates to low -voltage power distribution data acquisition equipment technical field discloses a kind of low -voltage power distribution data acquisition equipment, including base, the top of the base is fixedly connected with open-close type current transformer bottom end, the top of the base is rotatably connected with open-close type current transformer top end, one end of open-close type current transformer bottom end and open-close type current transformer top end is magnetically connected by magnet, by setting fixed cylinder, plug-in column and arc centering plate in the inner wall of open-close type current transformer, it can be realized automatic limiting and alignment when mutual inductor is folded, guarantee the concentricity between cable and mutual inductor, improve detection accuracy;By the cooperation of bidirectional screw rod, threaded sleeve block and locating ring, adjustable clamping to line is realized, the stability of mutual inductor in the process of operation is enhanced, simultaneously, rubber block is set in clamping piece bottom end, effectively buffers clamping force, avoids damaging the insulating layer of line.

Description

Technical Field

[0001] This utility model relates to the technical field of low-voltage power distribution data acquisition equipment, specifically a low-voltage power distribution data acquisition device. Background Technology

[0002] A switchable current transformer is a type of current transformer that can be installed and removed without interrupting power. Its core typically adopts a switchable structure design, consisting of two parts connected by hinges, magnets, or snap-fits. When closed, it forms a complete magnetic circuit, enabling the sensing of the current in the conductor being measured. It is widely used in data acquisition and energy consumption monitoring in low-voltage power distribution systems.

[0003] Existing switchable current transformers are prone to misalignment and loose clamping during installation, leading to decreased detection accuracy. In addition, the lack of effective limiting and buffering devices between the current transformer and the line makes them prone to loosening during long-term use, causing fluctuations in the acquired data and reducing the reliability of the equipment.

[0004] Therefore, it is necessary to design a low-voltage power distribution data acquisition device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a low-voltage power distribution data acquisition device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage power distribution data acquisition device, comprising a base, the bottom end of a switchable current transformer fixedly connected to the top of the base, the top end of the switchable current transformer rotatably connected to the top of the base, one end of the bottom end of the switchable current transformer and one end of the top end of the switchable current transformer being magnetically connected by a magnet, two symmetrical fixed cylinders fixedly connected to the inner walls of both the bottom end and the top end of the switchable current transformer, and a spring fixedly connected inside the fixed cylinder, one end of the spring being fixedly connected to... The base has a plug-in post, one end of which is fixedly connected to a centering plate. A fixed plug-in post is fixedly inserted inside the base. A groove is formed on the outer surface of the fixed plug-in post. A bidirectional threaded rod is rotatably inserted inside the groove. A rotating block is fixedly connected to one end of the bidirectional threaded rod. Threaded sleeve blocks are threadedly sleeved at both ends of the bidirectional threaded rod inside the groove. A positioning ring is fixedly connected to the top of the threaded sleeve block. A wire through hole is formed on one side of the positioning ring. A screw is threadedly inserted into the top of the positioning ring. A circular block and a clamping plate are fixedly connected to the top and bottom of the screw, respectively.

[0007] Preferably, there are four insertion posts and four fixing cylinders, and one end of each of the four insertion posts is slidably inserted into the interior of the four fixing cylinders, and the outer surface of each of the four insertion posts is in contact with the inner wall of the four fixing cylinders.

[0008] Preferably, the centering plate is arc-shaped, and the four centering plates are slidably disposed between the bottom end and the top end of the open-close current transformer, and a gap is formed between the bottom outer surface of the four centering plates and the top end of the fixed cylinder.

[0009] Preferably, there are two positioning rings, and the two positioning rings and the four centering plates are distributed concentrically, and the diameter of the positioning rings is larger than the circumference diameter of the four centering plates.

[0010] Preferably, a connecting block is fixed to the top of the top of the openable current transformer, and mounting holes are provided at both ends of the connecting block, with the two mounting holes respectively located on the top outer side of the base.

[0011] Preferably, the bottom ends of the two clamping pieces are fixed with rubber blocks, and the two clamping pieces and the two rubber blocks are respectively rotatably disposed inside the two positioning rings.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention, by setting a fixed cylinder, plug-in post, and arc-shaped centering plate on the inner wall of the openable current transformer, can achieve automatic limiting and alignment when the transformer is closed, ensuring the concentricity between the cable and the transformer and improving detection accuracy. Through the cooperation of bidirectional threaded rod, threaded sleeve block, and positioning ring, adjustable clamping of the line is achieved, enhancing the stability of the transformer during operation. At the same time, a rubber block is set at the bottom of the clamping plate to effectively buffer the clamping force and avoid damage to the insulation layer of the line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the fixed cylinder structure of this utility model;

[0016] Figure 3 This is a front view schematic diagram of the structure of this utility model;

[0017] In the diagram: 1. Base; 2. Bottom of the openable current transformer; 3. Top of the openable current transformer; 4. Connecting block; 5. Fixing cylinder; 6. Insertion post; 7. Fixing insertion post; 8. Rotating block; 9. Threaded sleeve block; 10. Groove; 11. Spring; 12. Circular block; 13. Screw; 14. Clamping plate; 15. Rubber block; 16. Bidirectional threaded rod; 17. Wire hole; 18. Positioning ring; 19. Centering plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, 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 than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3 This utility model provides a low-voltage power distribution data acquisition device, including a base 1. A bottom end 2 of a switchable current transformer is fixedly connected to the top of the base 1, and a top end 3 of the switchable current transformer is rotatably connected to the top of the base 1. One end of the bottom end 2 and the top end 3 of the switchable current transformer are magnetically connected by a magnet. Two symmetrical fixed cylinders 5 are fixedly connected to the inner walls of both the bottom end 2 and the top end 3 of the switchable current transformer. A spring 11 is fixedly connected inside the fixed cylinder 5. One end of the base 1 is fixedly connected to a plug post 6, and one end of the plug post 6 is fixedly connected to a centering plate 19. A fixing plug post 7 is fixedly plugged into the inside of the base 1. A groove 10 is formed on the outer surface of the fixing plug post 7. A bidirectional threaded rod 16 is rotatably plugged into the groove 10. A rotating block 8 is fixedly connected to one end of the bidirectional threaded rod 16. Threaded sleeve blocks 9 are threadedly sleeved at both ends of the bidirectional threaded rod 16 inside the groove 10. A positioning ring 18 is fixedly connected to the top of the threaded sleeve block 9. A wire through hole 1 is formed on one side of the positioning ring 18. 7. A screw 13 is threaded into the top of the positioning ring 18. A circular block 12 and a clamping plate 14 are fixed to the top and bottom of the screw 13, respectively. The cable for which data needs to be monitored is passed through the two through-holes 17 and placed inside the two positioning rings 18. The top 3 of the openable current transformer is rotated to open the rings, and the cable is placed in the center of the four centering plates 19 inside the bottom 2 and top 3 of the openable current transformer. The four centering plates 19 elastically clamp and center the cable, which facilitates monitoring. The length of the cable between the two positioning rings 18 is greater than the distance between the two positioning rings 18. After the two positioning rings 18 clamp and stabilize the two ends of the cable, the rotation of the rotating block 8 causes the two positioning rings 18 to shorten the two ends of the cable, thereby pushing the length of the cable between the two positioning rings 18. After the four centering plates 19 clamp the cable, they can provide a buffer for the pulling or thermal expansion of the clamping point, avoiding the cable itself from being affected and thus reducing the accuracy of data monitoring and acquisition.

[0021] To facilitate the stable sliding adjustment of the four centering plates 19 between the bottom end 2 and the top end 3 of the open-type current transformer, there are four plug-in posts 6 and four fixed cylinders 5. One end of each of the four plug-in posts 6 is slidably inserted into the interior of the four fixed cylinders 5, and the outer surfaces of the four plug-in posts 6 are respectively in contact with the inner walls of the four fixed cylinders 5.

[0022] In order to better clamp and stabilize the cable between the four centering plates 19, thereby avoiding the problem of magnetic field deviation of monitoring data and data acquisition deviation caused by cable clamping position displacement, the centering plates 19 are arc-shaped, and the four centering plates 19 are slidably set between the bottom end 2 and the top end 3 of the open-type current transformer, and a gap is formed between the bottom outer surface of the four centering plates 19 and the top end of the fixed cylinder 5.

[0023] In order to better reserve the buffer length of the cable monitoring end and clamp and fix the two ends of the cable, there are two positioning rings 18, and the two positioning rings 18 and the four centering plates 19 are distributed in concentric circles, and the diameter of the positioning rings 18 is larger than the circumference diameter of the four centering plates 19.

[0024] Furthermore, in order to facilitate the stable installation of the device, a connecting block 4 is fixedly connected to the top of the top 3 of the openable current transformer. Both ends of the connecting block 4 are provided with mounting holes, and the two mounting holes are respectively located on the top outer side of the base 1.

[0025] Furthermore, in order to ensure the stability of the cable clamping at both ends and to protect the safety of the cable clamping parts, rubber blocks 15 are fixed to the bottom ends of the two clamping plates 14, and the two clamping plates 14 and the two rubber blocks 15 are respectively rotatably set inside the two positioning rings 18.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A low-voltage power distribution data acquisition device, comprising a base (1), characterized in that: The bottom end (2) of a hinged current transformer is fixedly connected to the top of the base (1), and the top end (3) of the hinged current transformer is rotatably connected to the top of the base (1). One end of the bottom end (2) and the top end (3) of the hinged current transformer are magnetically connected by a magnet. Two symmetrical fixed cylinders (5) are fixedly connected to the inner walls of the bottom end (2) and the top end (3) of the hinged current transformer. A spring (11) is fixedly connected inside the fixed cylinder (5). One end of the spring (11) is fixedly connected to a plug post (6). One end of the plug post (6) is fixedly connected to a centering plate (19). The base (1) is fixedly connected to the plug post. There is a fixed insertion post (7), and a groove (10) is provided on the outer surface of the fixed insertion post (7). A bidirectional threaded rod (16) is rotatably inserted into the groove (10). A rotating block (8) is fixed to one end of the bidirectional threaded rod (16). Both ends of the bidirectional threaded rod (16) inside the groove (10) are threaded with threaded sleeve blocks (9). A positioning ring (18) is fixed to the top of the threaded sleeve block (9). A wire through hole (17) is provided on one side of the positioning ring (18). A screw (13) is threaded into the top of the positioning ring (18). A circular block (12) and a clamping piece (14) are fixed to the top and bottom of the screw (13), respectively.

2. The low-voltage power distribution data acquisition device according to claim 1, characterized in that: The number of the four plug-in pins (6) and the four fixed cylinders (5) are four in total. One end of each of the four plug-in pins (6) is slidably inserted into the interior of the four fixed cylinders (5), and the outer surface of each of the four plug-in pins (6) is in contact with the inner wall of the four fixed cylinders (5).

3. The low-voltage power distribution data acquisition device according to claim 1, characterized in that: The centering plate (19) is arc-shaped, and the four centering plates (19) are slidably disposed between the bottom end (2) and the top end (3) of the open-close current transformer, and a gap is formed between the bottom outer surface of the four centering plates (19) and the top end of the fixed cylinder (5).

4. The low-voltage power distribution data acquisition device according to claim 1, characterized in that: The number of positioning rings (18) is two, and the two positioning rings (18) and the four centering plates (19) are distributed in concentric circles, and the diameter of the positioning rings (18) is larger than the circumference diameter of the four centering plates (19).

5. A low-voltage power distribution data acquisition device according to claim 1, characterized in that: A connecting block (4) is fixed to the top of the top (3) of the openable current transformer. Both ends of the connecting block (4) are provided with mounting holes, and the two mounting holes are respectively located on the top outer side of the base (1).

6. A low-voltage power distribution data acquisition device according to claim 1, characterized in that: The bottom ends of the two clamping pieces (14) are fixed with rubber blocks (15), and the two clamping pieces (14) and the two rubber blocks (15) are respectively rotatably disposed inside the two positioning rings (18).

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