Integrated current and voltage sensor

Abstract

The utility model belongs to the technical field of current and voltage sensors, and particularly relates to an integrated current and voltage sensor, which comprises a shell, a fixing device is arranged in the shell and comprises a movable clamping plate, and the movable clamping plate moves to press and fix an accessed wire. According to the integrated current and voltage sensor, through the arrangement of the fixing device, a wire needing to be inserted can be selectively fixed, a fixed threaded rod rotates and moves to drive a driving rack to move, pressing of an adjusting rod can drive a rotating gear to be engaged with the driving rack, and rotation of the rotating gear can drive a fixed lead screw to rotate; the fixing lead screw moves through the fixing sliding block and then drives the movable clamping plate to move, clamping of the electric wire is completed, and therefore after the electric wire is inserted into the fixing groove, fixing of the electric wire can be completed at the same time, and the technical problem that selective fixing cannot be conducted according to an electric wire interface needing to be inserted in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of current and voltage sensor technology, and in particular to an integrated current and voltage sensor. Background Technology

[0002] A current and voltage sensor is a device that converts the measured electrical parameters into DC current and DC voltage and outputs isolated analog or digital signals. By connecting the current and voltage sensor to external electrical equipment, the current and voltage parameters of the equipment are detected.

[0003] Chinese patent CN118259063A, published on WeChat, discloses a current and voltage sensor and its usage method. The sensor includes a sensor body, a positioning mechanism, a pressing mechanism, and a limiting mechanism. The positioning mechanism clamps the electrical connection wire, the pressing mechanism presses and fixes one end of the connection wire, and the limiting mechanism limits and fixes the pressing mechanism. This invention inserts one end of the electrical connection wire into the inner cavity of a mounting groove on a movable block, with the bottom of the connection wire sliding into the inner cavity of a mounting hole. This positions the connection wire between a protrusion and a clamping block, pressing the clamping block and causing a movable rod and multiple clamping blocks to move to one side. A limiting block at one end of the movable rod presses a compression spring to one side, and the elasticity of the compression spring pushes the movable rod and multiple clamping blocks to the other side, causing the clamping blocks to press against one end of the connection wire, ensuring the stability of the connection wire and facilitating its installation and fixation.

[0004] However, the above solution cannot selectively fix the wire interfaces that need to be inserted. After a new wire needs to be connected, the fixing of other wires must be removed before the newly connected wires can be fixed. This increases the number of steps, reduces installation efficiency, and can easily cause other wires to loosen, affecting the use of the current and voltage sensors. Utility Model Content

[0005] The existing technology, which prevents selective fixing of wires at the required insertion points, necessitates untying other wires before fixing new ones, increasing operational steps and reducing installation efficiency. To address this issue, this invention proposes an integrated current and voltage sensor.

[0006] This utility model proposes an integrated current and voltage sensor, including a housing, and a fixing device is provided inside the housing. The fixing device includes a movable clamp, and the movement of the movable clamp presses and fixes the connected wire.

[0007] A detection device is fixedly installed inside the housing. The detection device includes a current sensing module, which monitors the current.

[0008] Preferably, the fixing device further includes a fixing groove, which is formed inside the housing. A fixing clamp is fixedly installed on the inner wall of the fixing groove, and the inner wall of the fixing groove is slidably inserted into the movable clamp.

[0009] The above technical solution allows for the fixation of inserted wires by using a combination of a movable clamp and a fixed clamp.

[0010] Preferably, after a fixed threaded rod is threadedly connected to the outer surface of the housing, one end of the rod extends through the inner wall of the housing and into its interior. A drive rack is slidably inserted into the inner wall of the housing, and one end of the drive rack is rotatably connected to one end of the fixed threaded rod through a bearing.

[0011] Through the above technical solution, the rotation and movement of the fixed threaded rod drives the drive rack to move. The threaded connection between the fixed threaded rod and the housing can fix the fixed threaded rod, thereby fixing the adjusted movable clamp.

[0012] Preferably, an adjusting rod is slidably inserted into the inner wall of the housing, a limiting groove is formed in the inner wall of the adjusting rod, a ball is slidably inserted into the inner wall of the limiting groove, a return spring is fixedly installed on the opposite face of the two balls, and an annular groove is formed in the inner wall of the housing, the inside of the annular groove is slidably inserted into the outer surface of the ball.

[0013] With the above technical solution, after the adjusting rod is pressed, the ball retracts into the limiting groove, which facilitates the descent of the adjusting rod. The ball can move from the first annular groove to the second annular groove to adjust the position of the adjusting rod, making it easier to fix the position of the adjusting rod.

[0014] Preferably, a rotating gear is fixedly installed on the outer surface of the adjusting rod. After movement, the rotating gear meshes with the driving rack. A protective cover is hinged to the housing via a pin, and the outer surface of the protective cover is slidably inserted into the outer surface of the housing.

[0015] With the above technical solution, the adjusting rod can be lowered to drive the rotating gear and the drive rack to mesh, and the movement of the drive rack can drive the rotating gear to rotate.

[0016] Preferably, a fixing screw is slidably inserted into the inner wall of the adjusting rod, one end of the fixing screw is rotatably connected to the inner wall of the housing through a bearing, and a fixing slider is threadedly connected to the outer surface of the fixing screw, and the outer surface of the fixing slider is fixedly installed with the outer surface of the movable clamping plate.

[0017] The above technical solution involves rotating the adjusting rod to drive the fixed lead screw to rotate. The fixed lead screw has a large pitch, which allows it to move the fixed slider a greater distance after rotation. This movement of the fixed slider then moves the moving clamp plate to fix the wire.

[0018] Preferably, the detection device further includes a circuit board, which is fixedly installed on the inner wall of the housing. A splitter is fixedly installed on the outer surface of the circuit board, and a communication module is fixedly installed on the outer surface of the circuit board. The current sensing module is fixedly soldered to the outer surface of the circuit board, and a signal processing module is fixedly installed on the outer surface of the circuit board. The signal processing module is electrically connected to the splitter and the current sensing module, respectively.

[0019] Through the above technical solution, the current sensing module is a Hall effect sensor that senses the magnetic field strength around the conductor, thereby calculating the current value. The high voltage is converted into a low voltage suitable for measurement by a voltage divider circuit and transmitted to the signal processing module. The signal processing module processes the collected analog signal, converts it into a digital signal, and transmits it to the control system through the communication module.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. By setting up a fixing device, the wires that need to be inserted can be selectively fixed. The rotation of the fixing threaded rod drives the drive rack to move. Pressing the adjusting rod drives the rotating gear to mesh with the drive rack. The rotation of the rotating gear drives the fixing screw to rotate. The fixing screw moves through the fixing slider and drives the moving clamp to move, thus clamping the wire. This allows the wire to be fixed simultaneously after it is inserted into the fixing slot. This solves the technical problem of existing devices that cannot selectively fix the wire interfaces that need to be inserted. When a new wire needs to be inserted, the fixing of other wires must be released before the new wire can be fixed, which increases the operation steps and reduces installation efficiency.

[0022] 2. By setting up a detection device, it is possible to monitor current and voltage simultaneously. The current sensing module is a Hall effect sensor that senses the magnetic field strength around the conductor and calculates the current value. The high voltage is converted into a low voltage suitable for measurement through a voltage divider circuit and transmitted to the signal processing module. The signal processing module processes the collected analog signal, converts it into a digital signal, and transmits it to the control system through the communication module. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an integrated current and voltage sensor proposed in this utility model;

[0024] Figure 2 This is a perspective view of the fixing clamp structure of an integrated current and voltage sensor proposed in this utility model;

[0025] Figure 3 This is a perspective view of the movable clamping plate structure of an integrated current and voltage sensor proposed in this utility model.

[0026] Figure 4 This is a perspective view of the drive rack structure of an integrated current and voltage sensor proposed in this utility model;

[0027] Figure 5 This is a perspective view of the circuit board structure of an integrated current and voltage sensor proposed in this utility model.

[0028] In the diagram: 1. Housing; 2. Fixing groove; 21. Fixing clamp; 22. Moving clamp; 23. Fixing threaded rod; 24. Drive rack; 3. Adjusting rod; 31. Limiting groove; 32. Ball bearing; 33. Return spring; 34. Annular groove; 35. Rotary gear; 37. Protective cover; 4. Fixing lead screw; 41. Fixing slider; 5. Circuit board; 51. Splitter; 52. Communication module; 53. Current sensing module; 54. Signal processing module. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-5 An integrated current and voltage sensor includes a housing 1, and a fixing device is provided inside the housing 1. The fixing device includes a movable clamp 22, and the movement of the movable clamp 22 presses and fixes the connected wire.

[0031] Specifically, in order to fix the wire, the fixing device also includes a fixing groove 2, which is opened inside the housing 1. A fixing clamp 21 is fixedly installed on the inner wall of the fixing groove 2, and the inner wall of the fixing groove 2 is slidably inserted into the movable clamp 22.

[0032] Specifically, in order to move the movable clamping plate 22, a fixed threaded rod 23 is threadedly connected to the outer surface of the housing 1, with one end extending through the inner wall of the housing 1 into its interior. A drive rack 24 is slidably inserted into the inner wall of the housing 1, and one end of the drive rack 24 is rotatably connected to one end of the fixed threaded rod 23 through a bearing. After the fixed threaded rod 23 rotates and moves, it drives the drive rack 24 to move. The threaded connection between the fixed threaded rod 23 and the housing 1 can fix the fixed threaded rod 23, thereby fixing the adjusted movable clamping plate 22.

[0033] Specifically, in order to selectively control the movement of the movable clamp 22, an adjusting rod 3 is slidably inserted into the inner wall of the housing 1. A limiting groove 31 is formed in the inner wall of the adjusting rod 3, and a ball bearing 32 is slidably inserted into the inner wall of the limiting groove 31. A return spring 33 is fixedly installed on the opposite face of the two balls 32. An annular groove 34 is formed in the inner wall of the housing 1, and the inside of the annular groove 34 is slidably inserted into the outer surface of the ball bearing 32. After the adjusting rod 3 is pressed, the ball bearing 32 can retract into the limiting groove 31, which facilitates the descent of the adjusting rod 3. The ball bearing 32 can enter the second annular groove 34 from the first annular groove 34 to adjust the position of the adjusting rod 3, which facilitates the fixation of the position of the adjusting rod 3.

[0034] Specifically, in order to move the movable clamp 22, a rotating gear 35 is fixedly installed on the outer surface of the adjusting rod 3. After moving, the rotating gear 35 meshes with the drive rack 24. The housing 1 is hinged with a protective cover 37 through a pin. The outer surface of the protective cover 37 is slidably inserted into the outer surface of the housing 1. The protective cover 37 protects the adjusting rod 3.

[0035] A fixing screw 4 is slidably inserted into the inner wall of the adjusting rod 3. One end of the fixing screw 4 is rotatably connected to the inner wall of the housing 1 through a bearing. A fixing slider 41 is threadedly connected to the outer surface of the fixing screw 4. The outer surface of the fixing slider 41 is fixedly installed with the outer surface of the movable clamping plate 22. The rotation of the adjusting rod 3 drives the fixing screw 4 to rotate. The fixing screw 4 has a large pitch, which makes it easy to drive the fixing slider 41 to move a large distance after rotation. This allows the fixing slider 41 to move, and the movement of the fixing slider 41 pushes the movable clamping plate 22 to move, thus fixing the wire.

[0036] In order to monitor the current and voltage, a detection device is fixedly installed inside the housing 1. The detection device includes a current sensing module 53, which monitors the current.

[0037] The detection device also includes a circuit board 5, which is fixedly installed on the inner wall of the housing 1. A splitter 51 is fixedly installed on the outer surface of the circuit board 5, and a communication module 52 is fixedly installed on the outer surface of the circuit board 5. A current sensing module 53 is fixedly soldered to the outer surface of the circuit board 5, and a signal processing module 54 is fixedly installed on the outer surface of the circuit board 5. The signal processing module 54 is electrically connected to the splitter 51 and the current sensing module 53, respectively. The current sensing module 53 is a Hall effect sensor that senses the magnetic field strength around the conductor and calculates the current value. The high voltage is converted into a low voltage suitable for measurement through a voltage divider circuit and transmitted to the signal processing module. The signal processing module 54 processes the collected analog signal, converts it into a digital signal, and transmits it to the control system through the communication module 52.

[0038] Working principle: Insert the wire to be fixed into the fixing groove 2, open the protective cover 37, press the adjusting rod 3, and the ball 32 in the adjusting rod 3 will be pressed and enter the limiting groove 31. The return spring 33 will be compressed, and the ball 32 will leave the inner wall of the first annular groove 34 and enter the second annular groove 34. After the ball 32 is released from compression, it will be reset and inserted into the annular groove 34 under the force of the return spring 33. The continuously pressed rotating gear 35 on the adjusting rod 3 meshes with the drive rack 24. After the fixed thread rod 23 rotates, it drives the drive rack 24 to move. The drive rack 24 moves and drives the rotating gear 35 to rotate. The rotation of the rotating gear 35 drives the fixed screw 4 to rotate. The fixed screw 4 can drive the fixed slider 41 to move. After the fixed slider 41 pushes the moving clamp 22 to move, it can move towards the fixed clamp 21 to complete the fixing of the wire.

[0039] The current sensing module 53 is a Hall effect sensor that senses the magnetic field strength around the conductor and calculates the current value. The high voltage is converted into a low voltage suitable for measurement through a voltage divider circuit and transmitted to the signal processing module 54. The signal processing module 54 processes the collected analog signal, converts it into a digital signal, and transmits it to the control system through the communication module 52.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated current and voltage sensor, comprising a housing (1), characterized in that: The housing (1) is provided with a fixing device inside, the fixing device including a movable clamp (22), the movement of the movable clamp (22) presses and fixes the connected wire; A detection device is fixedly installed inside the housing (1). The detection device includes a current sensing module (53) that monitors the current.

2. The integrated current and voltage sensor according to claim 1, characterized in that: The fixing device also includes a fixing groove (2), which is opened inside the housing (1). A fixing clamp (21) is fixedly installed on the inner wall of the fixing groove (2), and the inner wall of the fixing groove (2) is slidably inserted into the movable clamp (22).

3. The integrated current and voltage sensor according to claim 1, characterized in that: The outer surface of the housing (1) is threaded with a fixed threaded rod (23), one end of which extends through the inner wall of the housing (1) and into its interior. A drive rack (24) is slidably inserted into the inner wall of the housing (1), and one end of the drive rack (24) is rotatably connected to one end of the fixed threaded rod (23) through a bearing.

4. The integrated current and voltage sensor according to claim 3, characterized in that: An adjusting rod (3) is slidably inserted into the inner wall of the housing (1). A limiting groove (31) is formed on the inner wall of the adjusting rod (3). A ball bearing (32) is slidably inserted into the inner wall of the limiting groove (31). A return spring (33) is fixedly installed on the opposite face of the two balls (32). An annular groove (34) is formed on the inner wall of the housing (1). The interior of the annular groove (34) is slidably inserted into the outer surface of the ball bearing (32).

5. The integrated current and voltage sensor according to claim 4, characterized in that: A rotating gear (35) is fixedly installed on the outer surface of the adjusting rod (3). After moving, the rotating gear (35) meshes with the driving rack (24). A protective cover (37) is hinged to the housing (1) by a pin. The protective cover (37) is slidably inserted into the outer surface of the housing (1).

6. The integrated current and voltage sensor according to claim 5, characterized in that: A fixing screw (4) is slidably inserted into the inner wall of the adjusting rod (3). One end of the fixing screw (4) is rotatably connected to the inner wall of the housing (1) through a bearing. A fixing slider (41) is threadedly connected to the outer surface of the fixing screw (4). The outer surface of the fixing slider (41) is fixedly installed with the outer surface of the movable clamp (22).

7. The integrated current and voltage sensor according to claim 1, characterized in that: The detection device also includes a circuit board (5), which is fixedly installed on the inner wall of the housing (1). A splitter (51) is fixedly installed on the outer surface of the circuit board (5). A communication module (52) is fixedly installed on the outer surface of the circuit board (5). The current sensing module (53) is fixedly soldered to the outer surface of the circuit board (5). A signal processing module (54) is fixedly installed on the outer surface of the circuit board (5). The signal processing module (54) is electrically connected to the splitter (51) and the current sensing module (53) respectively.

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