Current line bending tool for current sensor

Abstract

The utility model discloses a current pre-bending tool for a current sensor, which comprises a base, the base is provided with a sliding groove which is in sliding contact with the outer walls of the two sides of a shell with a current line, and the two sides of the sliding groove along the length direction are provided with pressing plates which can be turned over and folded. The rotating shafts of the pressing plates are parallel to the length direction of the sliding groove, each pressing plate is provided with a fixing groove matched with the initial linear state of the current line, and one end, in the length direction, of the sliding groove is provided with a linear push rod used for pushing the shell to move. The tool provided by the utility model can standardize the processing technology process of the current sensor, thereby effectively improving the preparation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of current sensors, and in particular relates to a current line bending fixture for current sensors. Background Technology

[0002] During condition assessment testing of power systems, current sampling is required in many areas. Currently, most testing equipment uses current sensors as current sampling devices. A current sensor consists of a magnetic core and windings, with the windings divided into primary and secondary sides. In the power system field environment, current sampling involves the primary side transmitting noise signals in addition to the valid current signal. Simultaneously, the secondary side of the current sensor also generates noise signals due to external environmental interference. This noise interference distorts the acquired valid current signal, resulting in significant fluctuations in the acquired signal. The noise signals in the power system field environment are primarily orthogonally distributed strong electromagnetic fields.

[0003] Industrial equipment and electric vehicle charging stations in the market require stable output current, necessitating real-time monitoring and adjustment of the output current. Current sensors can achieve real-time monitoring of currents across different ranges and, through feedback mechanisms, help the system correct the output current. Sensor development involves feeding the current to be collected into the sensor, requiring the current lines to be designed in various shapes to accommodate the current signal acquisition.

[0004] Patent document CN219152752U discloses a pressing fixture for a current sensor and an AC output component, including a base plate, a column, a cantilever, a control lever, a pressure rod, and a contouring pressure head. The base plate is horizontally positioned to support the components of the pressing fixture. The column is vertically fixed to the base plate. The cantilever is horizontally fixed to the column. The control lever and the pressure rod are fixed to the end of the cantilever, and a transmission mechanism is provided between the control lever and the pressure rod. Moving the control lever can drive the pressure rod to move up and down back and forth. The contouring pressure head is fixed to the bottom end of the pressure rod and can push the current sensor downward under the drive of the pressure rod.

[0005] Patent document CN220161166U discloses a bending and pressing device for a current sensor pin, including a support assembly and a bending and pressing assembly. The support assembly includes a base plate, pillars vertically fixed to both sides of the upper middle part of the base plate, and a top plate vertically fixed to the upper end of the pillars. A through hole is opened in the middle of the top plate. The bending and pressing assembly includes a pneumatic push rod vertically fixed in the through hole of the top plate, a lifting block disposed at the lower end of the pneumatic push rod, and a mounting block installed in the upper middle part of the base plate. A plurality of first placement slots are evenly opened at the upper end of the mounting block, and a second placement slot is opened between adjacent first placement slots. The cross-section of the first placement slot is rectangular, and the cross-section of the second placement slot is circular. Summary of the Invention

[0006] The purpose of this invention is to provide a current line bending fixture for current sensors, which can standardize the processing technology of current sensors, thereby effectively improving the manufacturing efficiency.

[0007] To achieve the purpose of this utility model, the following technical solution is provided: a current line bending fixture for a current sensor, wherein the current sensor includes a housing with a built-in sensor and current lines located on both sides of the housing for inputting current into the housing, and the current bending fixture includes a base, wherein the base is provided with a sliding groove that slides in contact with the outer walls of the housing with the current lines on both sides, wherein the sliding groove is provided with flip-able and closeable pressure plates on both sides along the length direction, wherein the rotation axis of the two pressure plates is arranged parallel to the length direction of the sliding groove, wherein each pressure plate is provided with a fixing groove that matches the initial straight state of the current lines, and wherein one end of the sliding groove along the length direction is provided with a linear push rod for pushing the housing to move;

[0008] In use, after matching the initial straight state of the current line with the fixed groove, the housing is placed into the sliding groove. The housing is pushed to make a straight line movement by the linear push rod to complete the radial bending. Then, the two pressure plates are flipped in turn to complete the current line to fit the surface of the housing.

[0009] This invention uses a sliding groove and a fixed groove to initially position the housing of the current sensor, and then uses a linear push rod and a pressure plate to change the position of the housing and the shape of the current line in sequence, thereby completing the current line bending process in a standard and fast manner.

[0010] Specifically, the pressure plate is equipped with a handle for flipping the pressure plate to increase torque in order to meet the bending requirements of current lines of different sizes or hardness.

[0011] Specifically, the side of the pressure plate is provided with a connection port for threaded connection with the handle, which facilitates the storage and transportation of the tooling.

[0012] Specifically, the distance between the end of the housing away from the linear push rod and the current line is less than the distance between the ends of the fixed groove and the sliding groove away from the linear push rod.

[0013] Specifically, a buffer pad is provided at the end of the sliding groove away from the linear push rod to prevent the housing from colliding and being damaged with the end of the sliding groove when it is pushed by the linear push rod during the processing.

[0014] Specifically, the opening of the fixing groove is chamfered to facilitate the insertion of the current wire into the fixing groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By coordinating the various structures within the tooling, the problem of large deviations between products due to manual bending in traditional products can be solved; at the same time, it can also effectively improve the work efficiency of the current line bending process in current sensors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the current line bending fixture for a current sensor provided in this embodiment;

[0018] Figure 2 for Figure 1 A magnified view of the sliding groove section in the main view;

[0019] Figure 3 This is an unprocessed schematic diagram of the current sensor provided in this embodiment;

[0020] Figure 4 This is a schematic diagram illustrating the current line bending process performed on one side by the current line bending fixture provided in this embodiment;

[0021] Figure 5 for Figure 4 A magnified view of the sliding groove section in the top-middle view;

[0022] Figure 6 for Figure 4 A magnified view of the sliding groove section in the middle side view;

[0023] Figure 7 This is a schematic diagram illustrating the completed fabrication of the current sensor provided in this embodiment;

[0024] In the diagram, 1 is the base; 2 is the current sensor; 3 is the pressure plate; 4 is the sliding groove; 5 is the linear push rod; 6 is the handle; 7 is the fixing groove; 201 is the housing; 202 is the current line; and 401 is the buffer pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The current sensor mentioned in this embodiment is used for real-time monitoring of currents in different ranges and helps the system correct the output current through feedback principle. Since a small number of products still rely on manual bending at present, especially for the standard of current wire bending process, it is often impossible to guarantee that the current wire shape of each sensor is completely consistent.

[0027] Therefore, this embodiment provides a current line bending fixture for a current sensor, such as... Figure 1 The image shows three views of the current line bending fixture, in which... Figure 1 (a) in the image is a top view. Figure 1 (b) is a side view. Figure 1 (c) in the diagram is the main view, while... Figure 2 As shown Figure 1 (c) is a magnified view of the part.

[0028] like Figure 3 As shown, this is the current sensor 2 in this embodiment with the current line bending process not completed. Figure 3 Image (a) is the front view of current sensor 2. Figure 3 Image (b) is a side view of current sensor 2. Figure 3 (c) is a top view of the current sensor 2, which includes a housing 201 with a built-in sensor and current lines 202 located on both sides of the housing 201 for inputting current into the housing.

[0029] The current line bending fixture includes a base 1, on which a sliding groove 4 is provided that slides in contact with the outer walls of the housing 201 on both sides of the current line 202. The sliding groove 4 has flip-able and closeable pressure plates 3 on both sides along its length. The rotation axis of each pressure plate 3 is arranged parallel to the length direction of the sliding groove 4. Each pressure plate 3 has a fixing groove 7 that matches the initial straight state of the current line 202. One end of the sliding groove 4 along its length is provided with a linear push rod 5 for pushing the housing 201 to move. In addition, the pressure plate 3 is provided with a handle 6 for flipping the pressure plate 3. In this embodiment, the side of the pressure plate 3 is provided with a connection port that is threaded to the handle 6.

[0030] like Figure 4 As shown, where Figure 4 (a) in the image is a top view. Figure 4 (b) is a side view. Figure 4 (c) is the main view. When in use, after matching the initial straight state of the current line with the fixed groove, the housing is placed into the sliding groove. The housing is pushed to make a straight movement by the straight push rod to complete the radial bending. Then, the two pressure plates are flipped in turn to complete the current line to fit the surface of the housing.

[0031] More specifically, such as Figure 5 and Figure 6 As shown, a buffer pad 401 is provided at the end of the sliding groove 4 away from the linear push rod 5 to prevent the housing 201 from colliding and being damaged with the end of the sliding groove 4 when it is pushed by the linear push rod 5 during the processing. At the same time, the buffer pad 401 mentioned in this embodiment has various sizes to adapt to different bending process requirements.

[0032] In addition, the opening of the fixing slot 7 is chamfered to facilitate the insertion of the current wire into the fixing slot 7.

[0033] After the above procedures, there is a... Figure 3 The current line status shown is changed to as follows Figure 7 The current line 202 in the bent state shown, wherein Figure 7 (a) is the main view. Figure 7 (b) is a side view. Figure 7 (c) in the diagram is the top view.

[0034] More specifically, such as Figure 7 As can be seen from (b) in this embodiment, the tooling provided does not simply bend the current line 202 vertically, but also bends it along the length of the housing at the connection part with the housing 201, thereby meeting the current acquisition requirements of the sensor inside the housing 201.

[0035] In summary, the tooling provided in this embodiment can effectively improve the bending efficiency of the current line of the current sensor, while also ensuring that the product performance remains consistent during batch production.

[0036] Furthermore, the terms "upper," "lower," "inner," "outer," "front," and "rear" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise specifically stated, the relative steps, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this invention.

[0037] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

[0038] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. These modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A current line bending jig for a current sensor including a housing of a built-in sensor and a current line for inputting a current into the housing on both sides of the housing, characterized by, The device includes a base, on which a sliding groove is provided that slides in contact with the outer walls of the housing on both sides of the current line. The sliding groove has flip-able and closeable pressure plates on both sides along its length. The rotation axis of the pressure plates is arranged parallel to the length direction of the sliding groove. Each pressure plate has a fixing groove that matches the initial straight state of the current line. One end of the sliding groove along its length is provided with a linear push rod for pushing the housing to move. In use, after matching the initial straight state of the current line with the fixed groove, the housing is placed into the sliding groove. The housing is pushed to make a straight line movement by the linear push rod to complete the radial bending. Then, the two pressure plates are flipped in turn to complete the current line to fit the surface of the housing.

2. The current wire bending tool for a current sensor according to claim 1, characterized by, The pressure plate is equipped with a handle for flipping the pressure plate.

3. The current wire bending tool for a current sensor according to claim 2, characterized by, The side of the pressure plate is provided with a connection port for threaded connection with the handle.

4. The current line bending fixture for a current sensor according to claim 1, characterized in that, The distance between the end of the housing furthest from the linear push rod and the current line is less than the distance between the ends of the fixed groove and the sliding groove furthest from the linear push rod.

5. The current wire bending tool for a current sensor according to claim 1, wherein The end of the sliding groove away from the linear push rod is provided with a buffer pad.

6. The current wire bending fixture for a current sensor according to claim 1, wherein The opening of the fixing groove is chamfered.

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