Testing device of current sensor

Abstract

The invention relates to a current sensor testing device which comprises a testing plate and a clamping tool, the clamping tool is installed on the testing plate, the clamping tool comprises a fixing frame, and the fixing frame is divided into a plurality of groove bodies through partition plates; the clamping assembly is installed on the fixing frame and used for clamping and fixing the current sensor; the clamping assembly comprises an I-shaped frame, a limiting rod, a limiting block, a spring, a moving block, a moving rod and a pressing piece, the I-shaped frame is installed on the fixing frame, one end of the limiting rod is installed on the I-shaped frame, the other end of the limiting rod is connected with the limiting block, a moving hole is formed in the moving block, and the moving block is installed on the limiting rod through the moving hole; limiting grooves are formed in the two ends of the moving block, the moving block is arranged on the I-shaped frame in a sleeving mode through the limiting grooves, the two ends of the moving block are connected with the moving rods, the pressing pieces are installed on the moving rods, and the limiting rods are sleeved with the springs. According to the detection device, a plurality of current sensors can be detected at a time, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of testing equipment, in particular to a testing device for a current sensor. Background Art

[0002] A current sensor is a device used to detect the current in a circuit. It can convert the current signal into a signal that is easy to measure and process, such as a voltage signal.

[0003] The application environment of current sensors is very wide, including motor control, power systems, manufacturing processes, energy management, electric vehicles, rail transportation, ships and aircraft, smart homes, building automation, medical instruments, experimental equipment, solar and wind energy systems, data centers, etc. The wide application of current sensors also puts forward high requirements for their measurement accuracy. Current sensor detection equipment is usually used to evaluate the performance parameters of current sensors to ensure that they can work accurately and reliably under specified working conditions.

[0004] However, the clamping tooling used in the current test device can only clamp and fix one current sensor at a time, and cannot clamp and fix multiple current sensors, resulting in significantly low efficiency. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art and provide a testing device for a current sensor, which can effectively solve the above problems in the prior art.

[0006] A test device for a current sensor comprises a test board and a clamping tool, wherein the clamping tool is installed on the test board, and the clamping tool comprises

[0007] A fixing frame, wherein the fixing frame is divided into a plurality of slots for placing current sensors by partitions;

[0008] A clamping assembly, mounted on a fixing frame, for clamping and fixing the current sensor;

[0009] The clamping assembly includes an I-frame, a limit rod, a limit block, a spring, a moving block, a moving rod and a pressing plate. The I-frame is installed on a fixed frame, one end of the limit rod is installed on the I-frame, and the other end of the limit rod is connected to the limit block. A moving hole is opened on the moving block, and the moving block is installed on the limit rod through the moving hole. The moving block is a U-shaped structure, and limit grooves are opened at both ends of the moving block, and the moving block is sleeved on the I-frame through the limit grooves; the two ends of the moving block are respectively connected to two moving rods, the pressing plate is installed on the moving rod, and the spring is sleeved on the limit rod and located between the limit block and the moving block.

[0010] Furthermore, the clamping assembly also includes a limiting U-shaped block, two of the limiting U-shaped blocks are symmetrically arranged on the left and right sides of the I-shaped frame and installed on the fixed frame, and left and right through positioning holes are opened on both ends of the limiting U-shaped block, and the two ends of the moving rod respectively pass through the positioning holes of the limiting U-shaped block and are connected to the cylindrical block, the positioning hole is an elliptical structure, and the moving rod can move along the positioning hole.

[0011] Furthermore, the fixing frame includes a bottom bracket and a side bracket, the side bracket is elliptical, and both ends of the bottom bracket are folded upwards to connect with the side bracket to form a basket-like structure.

[0012] Furthermore, the bottom brackets are provided in two groups, and the two groups of bottom brackets are arranged in parallel.

[0013] Furthermore, the bottom bracket is mounted on the test plate by bolts.

[0014] Furthermore, the partition is installed on the bottom bracket, and the height of the partition is 1 / 5-1 / 4 of the height of the current sensor.

[0015] The advantages and beneficial effects of the present invention are:

[0016] (1) The present invention places the current sensor in the slot body and fixes the current sensor in the left and right directions through the partitions on both sides of the slot body; during the placement process, by pressing the pressing piece, the pressing piece presses the moving block outward along the limit rod and compresses the spring, thereby clamping and fixing the front and rear ends of the current sensor. In addition, the pressing piece is symmetrically installed on the upper and lower sides of the I-shaped frame, which can facilitate the clamping and fixing of the upper and lower sides of the current sensor and improve the clamping stability.

[0017] (2) The positioning hole set on the limiting U-shaped block adopts an elliptical structure, and the moving rod adopts a cylindrical structure. The moving rod can move slightly in the positioning hole to provide a buffer for the pressing piece installed on the moving rod, thereby avoiding damage to the current sensor when the pressing piece is clamped.

[0018] (3) The basket-like hollow structure formed by connecting the side bracket and the bottom bracket can facilitate the connection between the detection circuit and the current sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a current sensor testing device provided by the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0021] Figure 3 is a schematic diagram of the structure of the clamping assembly;

[0022] Figure 4 for Figure 3 A schematic diagram of the structure from another angle;

[0023] Figure 5 A diagram showing the use status of a current sensor testing device provided by the present invention;

[0024] Description of reference numerals:

[0025] Partition 1, I-beam 2, limiting rod 3, limiting block 4, spring 5, moving block 6, moving rod 7, pressing sheet 8, limiting groove 9, limiting U-shaped block 10, positioning hole 11, bottom bracket 12, and side bracket 13. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1-5 As shown, a current sensor test device includes a test board and a clamping tool, the clamping tool is installed on the test board, and the clamping tool includes

[0029] A fixing frame, wherein the fixing frame is divided into a plurality of slots for placing current sensors by a partition 1;

[0030] A clamping assembly, mounted on a fixing frame, for clamping and fixing the current sensor;

[0031] The clamping assembly includes an I-frame 2, a limit rod 3, a limit block 4, a spring 5, a moving block 6, a moving rod 7 and a pressing plate 8. The I-frame 2 is installed on a fixed frame, one end of the limit rod 3 is installed on the I-frame 2, and the other end of the limit rod 3 is connected to the limit block 4. A moving hole is opened on the moving block 6, and the moving block 6 is installed on the limit rod 3 through the moving hole. The moving block 6 is a U-shaped structure, and limit grooves 9 are opened at both ends of the moving block, and the moving block is sleeved on the I-frame 2 through the limit grooves 9; the two ends of the moving block 6 are respectively connected to two moving rods 7, the pressing plate 8 is installed on the moving rod 7, and the spring 5 is sleeved on the limit rod 3 and is located between the limit block 4 and the moving block 6.

[0032] In the above technical solution, the current sensor is placed in the slot body, and the current sensor is fixed in the left and right directions by the partitions on both sides of the slot body; during the placement process, by pressing the pressing piece, the pressing piece presses the moving block outwards through the moving rod to move outwards along the limit rod and compress the spring, thereby clamping and fixing the front and rear ends of the current sensor. In addition, the pressing piece is symmetrically installed on the upper and lower sides of the I-shaped frame, which can facilitate the clamping and fixing of the upper and lower sides of the current sensor and improve the clamping stability.

[0033] As a preferred embodiment of the above technical solution, the clamping assembly also includes a limiting U-shaped block 10, and the two limiting U-shaped blocks 10 are symmetrically arranged on the left and right sides of the I-shaped frame 2 and installed on the fixed frame. Positioning holes 11 that pass through the left and right sides are opened on both ends of the limiting U-shaped block 10, and the two ends of the moving rod 7 respectively pass through the positioning holes 11 of the limiting U-shaped block 10 and are connected to the cylindrical block 12. The positioning hole 11 is an elliptical structure, and the moving rod 7 can move along the positioning hole 11.

[0034] In the above technical solution, the positioning hole set on the limiting U-shaped block 10 adopts an elliptical structure, and the moving rod adopts a cylindrical structure. The moving rod can move slightly in the positioning hole to provide a buffer for the pressing sheet installed on the moving rod, thereby avoiding damage to the current sensor when the pressing sheet is clamped.

[0035] As a preferred embodiment of the above technical solution, the fixing frame includes a bottom bracket 12 and a side bracket 13. The side bracket 13 is elliptical. Both ends of the bottom bracket 12 are folded upward to connect with the side bracket 13 to form a basket-like structure.

[0036] In the above technical solution, the basket-shaped hollow structure formed by connecting the side bracket and the bottom bracket can facilitate the connection between the detection circuit and the current sensor.

[0037] As a preferred embodiment of the above technical solution, two groups of bottom brackets 12 are provided, and the two groups of bottom brackets 12 are arranged in parallel.

[0038] As a preferred embodiment of the above technical solution, the bottom bracket 12 is mounted on the test plate by bolts.

[0039] As a preferred embodiment of the above technical solution, the partition 1 is installed on the bottom bracket 12, and the height of the partition 1 is 1 / 5-1 / 4 of the height of the current sensor. The height setting of the partition can facilitate the heat dissipation of the current sensor during the detection process to avoid the influence of temperature on the detection result.

[0040] As a preferred embodiment of the above technical solution, the pressing sheet 8 is an arc-shaped structure.

[0041] The working principle of the present invention is as follows:

[0042] The current sensor is placed in the slot body, and the partitions on both sides of the slot body are used to fix the current sensor on the left and right sides; during the placement process, the pressing piece is pressed, and the pressing piece is pressed outward through the moving rod to move the moving block outward along the limiting rod and compress the spring, thereby clamping and fixing the front and rear ends of the current sensor. The positioning hole set on the limiting U-shaped block 10 adopts an elliptical structure, and the moving rod adopts a cylindrical structure. The moving rod can move slightly in the positioning hole to buffer the pressing piece installed on the moving rod, avoiding damage to the current sensor when the pressing piece is clamped. The basket-shaped hollow structure formed by connecting the side bracket and the bottom bracket can facilitate the connection between the detection circuit and the current sensor.

[0043] It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A current sensor testing device, characterized in that: It includes a test plate and a clamping tool, the clamping tool is installed on the test plate, and the clamping tool includes A fixing frame, the fixing frame being divided into a plurality of slots capable of placing current sensors by a partition (1); A clamping assembly, mounted on a fixing frame, for clamping and fixing the current sensor; The clamping assembly comprises an I-shaped frame (2), a limiting rod (3), a limiting block (4), a spring (5), a moving block (6), a moving rod (7) and a pressing plate (8); the I-shaped frame (2) is mounted on a fixed frame; one end of the limiting rod (3) is mounted on the I-shaped frame (2); the other end of the limiting rod (3) is connected to the limiting block (4); a moving hole is provided on the moving block (6); the moving block (6) is mounted on the limiting rod (3) through the moving hole; the moving block (6) is a U-shaped structure; limiting grooves (9) are provided at both ends of the moving block (6); and the moving block (6) is sleeved on the I-shaped frame (2) through the limiting grooves (9); the two ends of the moving block (6) are respectively connected to two moving rods (7); the pressing plate (8) is mounted on the moving rod (7); the spring (5) is sleeved on the limiting rod (3) and is located between the limiting block (4) and the moving block (6).

2. A current sensor testing device according to claim 1, characterized in that: The clamping assembly further comprises a limiting U-shaped block (10), wherein two limiting U-shaped blocks (10) are symmetrically arranged on the left and right sides of the I-shaped frame (2) and mounted on the fixing frame, and both ends of the limiting U-shaped block (10) are provided with positioning holes (11) which pass through the left and right sides, and both ends of the moving rod (7) respectively pass through the positioning holes (11) of the limiting U-shaped block (10) and are connected to the cylindrical block (12), the positioning hole (11) is an elliptical structure, and the moving rod (7) can move along the positioning hole (11).

3. A current sensor testing device according to claim 2, characterized in that: The fixing frame comprises a bottom bracket (12) and a side bracket (13); the side bracket (13) is elliptical, and both ends of the bottom bracket (12) are folded upwards and connected to the side bracket (13).

4. A current sensor testing device according to claim 3, characterized in that: The bottom brackets (12) are provided in two groups, and the two groups of bottom brackets (12) are arranged in parallel.

5. A current sensor testing device according to claim 4, characterized in that: The bottom bracket (12) is mounted on the test plate by means of bolts.

6. A current sensor testing device according to claim 3, characterized in that: The partition (1) is installed on the bottom bracket (12), and the height of the partition (1) is 1 / 5-1 / 4 of the height of the current sensor.

7. A current sensor testing device according to claim 1, characterized in that: The pressing sheet (8) is an arc-shaped structure.

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