Box type current sensor

Abstract

The utility model discloses a box type current sensor, which relates to the technical field of current sensors and comprises a sensor body, a bottom groove is formed in the bottom of the sensor body, a guide rail is inserted into the bottom groove in a penetrating manner, and a plurality of limiting grooves are formed in two sides of the guide rail at equal intervals. Main inserting grooves are formed in the positions, located on the two sides of the bottom groove, of the sensor body, a plurality of auxiliary inserting grooves are formed in the sides, close to the bottom groove, of the main inserting grooves, inserting blocks are arranged in the positions, located in the auxiliary inserting grooves, of the main inserting grooves, and inserting rods are fixed to the ends, away from the inserting blocks, of the interiors of the main inserting grooves; by changing the mounting part of the sensor body and the guide rail, the inserting rod, located in the main inserting groove, of the sensor body drives the inserting block to penetrate through the auxiliary inserting groove to be inserted out through the tension of the inserting rod, and the inserting block is inserted into the auxiliary inserting groove in the side wall of the guide rail, so that the effects of quick disassembly and quick assembly between the sensor body and the guide rail are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, in particular to a box-type current sensor. Background Art

[0002] The box current sensor is a current measuring device, also known as a current transformer or current sensor. It is widely used in power systems, electrical automation control, motor control and other fields to measure and monitor the current in the circuit. The main advantages of the box current sensor include:

[0003] 1. Small size, light weight, easy to install and use;

[0004] 2. High precision and small measurement error;

[0005] 3. Fast response speed, can quickly track the current changes in the circuit;

[0006] 4. High reliability and long service life;

[0007] 5. It can measure large current and small current and has a wide range of applications.

[0008] In the process of implementing the solution, the inventors found that the following problems in the prior art have not been well solved: the box-type sensor needs to be used with a guide rail, the box body is installed on the guide rail with screws, and the guide rail is installed inside the distribution cabinet with screws. Some box bodies are connected to the bottom of the guide rail with screws from bottom to top, while the guide rail is connected to the inside of the cabinet with screws from top to bottom, which makes installation and disassembly inconvenient. The position of the sensor on the guide rail needs to be measured in advance, which brings great trouble to the installation or subsequent disassembly work. Utility Model Content

[0009] The main purpose of the utility model is to provide a box-type current sensor, which can effectively solve the problems in the background technology.

[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0011] A box-type current sensor comprises a sensor body, wherein a bottom groove is bored at the bottom of the sensor body, a guide rail is inserted through the inside of the bottom groove, and a plurality of limit grooves are equidistantly bored on both sides of the guide rail, main slots are bored at both sides of the bottom groove of the sensor body, a plurality of auxiliary slots are bored at the side of the main slot close to the bottom groove, plug blocks are arranged at the inside of the main slot at the position of the auxiliary slot, a plug rod is fixed at one end of the main slot away from the plug block, a plug hole is bored at one end of the plug block close to the plug rod, a tension spring is sleeved on the outer wall of the plug rod, two ends of the tension spring are respectively fixedly connected to the side wall of the main slot and one end close to the plug block, traction grooves are bored at both sides of the main slot of the sensor body, an adjustment groove is bored at one end of the sensor body away from the traction grooves, a traction plate is arranged inside the traction groove, an adjustment block is arranged inside the adjustment groove, and a connecting plate is fixed at one end of two adjacent plug blocks away from the guide rail.

[0012] Preferably, the insertion rods are respectively inserted into the inside of the insertion holes and are slidably connected.

[0013] Preferably, one end of the insert block away from the insert rod is respectively connected to the auxiliary slot, and one end of the insert rod passing through the auxiliary slot is respectively inserted into the inner part of the limiting slot with matching position.

[0014] Preferably, the inner diameters of the auxiliary slot and the limiting slot respectively match the outer diameters of the insert block.

[0015] Preferably, the thickness of the traction plate matches the thickness of the traction groove, one end of the traction plate close to the adjustment groove is fixedly connected to the adjustment block, and one end of the traction plate away from the adjustment block is fixedly connected to the matching plug block.

[0016] Preferably, installation grooves are formed at both ends of the bottom groove, and screws are inserted into both ends of the interior of the installation grooves.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. By changing the sensor body and the guide rail installation part, the insertion rod of the sensor body located in the main slot drives the insertion block through the secondary slot through its own tension, and inserts it into the secondary slot at the side wall of the guide rail, so that the sensor body and the guide rail have the effect of quick release and quick installation.

[0019] 2. The position outside the sensor body is moved in the direction away from the guide rail position through the adjustment block. The adjustment block can drive the adjacent plug-in blocks to move together through the traction plate, and the plug-in block drives the other plug-in blocks to move together through the connecting plate, so that the end of the plug-in block away from the socket can be retracted from the limit groove of the guide rail to the sub-slot of the sensor body. This adjustment method can increase the effect of convenient quick disassembly and quick installation between the sensor body and the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a box-type current sensor of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of a local component of a box-type current sensor of the utility model after the bottom of the sensor body is cut away;

[0022] Figure 3 This is a schematic diagram of the enlarged structure of the A position of a box-type current sensor of the utility model;

[0023] Figure 4 This is a schematic diagram of the enlarged structure of point B of a box-type current sensor of the utility model.

[0024] In the figure: 1. sensor body; 2. bottom slot; 3. guide rail; 4. main slot; 5. auxiliary slot; 6. plug block; 7. socket; 8. plug rod; 9. tension spring; 10. connecting plate; 11. traction slot; 12. traction plate; 13. adjustment slot; 14. adjustment block; 15. mounting slot; 16. screw; 17. limit slot. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-4As shown, a box-type current sensor includes a sensor body 1, a bottom groove 2 is drilled at the bottom of the sensor body 1, a guide rail 3 is inserted through the bottom groove 2, and a plurality of limit grooves 17 are drilled at equal distances on both sides of the guide rail 3. The sensor body 1 is drilled with main slots 4 at both sides of the bottom groove 2, and a plurality of auxiliary slots 5 are drilled on the side of the main slot 4 close to the bottom groove 2. An insert block 6 is arranged inside the main slot 4 at the position of the auxiliary slot 5, and an insert rod 8 is fixed at one end of the main slot 4 away from the insert block 6, and the insert block 6 is close to the insert rod 8. One end is provided with a plug hole 7, the outer wall of the plug rod 8 is provided with a tension spring 9, the two ends of the tension spring 9 are respectively fixedly connected to the side wall of the main slot 4 and the end close to the plug block 6, the sensor body 1 is located on both sides of the main slot 4. The sensor body 1 is located at the end away from the traction groove 11. An adjustment groove 13 is drilled, the inside of the traction groove 11 is provided with a traction plate 12, the inside of the adjustment groove 13 is provided with an adjustment block 14, and the ends of the two adjacent plug blocks 6 away from the guide rail 3 are fixed with a connecting plate 10.

[0027] Specifically, the insertion rods 8 are respectively inserted into the inside of the insertion holes 7 and are slidably connected, so that the movement of the insertion block 6 is more horizontal.

[0028] Specifically, one end of the plug block 6 away from the plug rod 8 is connected to the auxiliary slot 5, and one end of the plug rod 8 passing through the auxiliary slot 5 is inserted into the inside of the limiting groove 17 with matching position, so as to limit the position of the sensor body 1 on the guide rail 3.

[0029] Specifically, the inner diameters of the auxiliary slot 5 and the limiting slot 17 are matched with the outer diameter of the insert block 6 , respectively, so that the limiting is more stable.

[0030] Specifically, the thickness of the traction plate 12 matches the thickness of the traction groove 11, the end of the traction plate 12 close to the adjustment groove 13 is fixedly connected to the adjustment block 14, and the end of the traction plate 12 away from the adjustment block 14 is fixedly connected to the matching plug block 6, so that the plug block 6 can be pulled and moved through the adjustment block 14 and the traction plate 12.

[0031] Specifically, installation grooves 15 are formed at both ends of the bottom groove 2 , and screws 16 are inserted at both ends of the interior of the installation groove 15 to facilitate connection with the power distribution cabinet.

[0032] Working principle: By changing the installation part of the sensor body 1 and the guide rail 3, the insertion rod 8 of the sensor body 1 located in the main slot 4 drives the insertion block 6 to be inserted out after passing through the secondary slot 5 through its own tension, and is inserted into the secondary slot 5 at the side wall of the guide rail 3, so that the sensor body 1 and the guide rail 3 have the effect of quick release and quick installation. The position outside the sensor body 1 is moved in the direction away from the position of the guide rail 3 by the adjustment block 14, and the adjustment block 14 can drive the adjacent insertion blocks 6 to move together through the traction plate 12, and the insertion block 6 drives the remaining insertion blocks 6 to move together through the connecting plate 10, so that the end of the insertion block 6 away from the socket 7 can be retracted from the limit groove 17 of the guide rail 3 to the secondary slot 5 of the sensor body 1. This adjustment method can increase the effect of convenient quick release and quick installation between the sensor body 1 and the guide rail 3.

[0033] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A box-type current sensor, comprising a sensor body (1), characterized in that: The sensor body (1) has a bottom groove (2) formed at the bottom, a guide rail (3) is inserted through the bottom groove (2), and a plurality of limit grooves (17) are formed at equal intervals on both sides of the guide rail (3). The sensor body (1) has main slots (4) formed at both sides of the bottom groove (2), and a plurality of auxiliary slots (5) are formed on the side of the main slot (4) close to the bottom groove (2). An insert block (6) is formed inside the main slot (4) at the position of the auxiliary slot (5), and an insert rod (8) is fixed to the end of the main slot (4) away from the insert block (6), and a socket (17) is formed on the end of the insert block (6) close to the insert rod (8). 7), the outer wall of the insertion rod (8) is sleeved with a tension spring (9), the two ends of the tension spring (9) are respectively fixedly connected to the side wall of the main slot (4) and the end close to the insertion block (6), the sensor body (1) is provided with a traction groove (11) at the positions on both sides of the main slot (4), the sensor body (1) is provided with an adjustment groove (13) at the end away from the traction groove (11), the traction groove (11) is provided with a traction plate (12), the adjustment groove (13) is provided with an adjustment block (14), and the ends of the two adjacent insertion blocks (6) away from the guide rail (3) are fixed with a connecting plate (10).

2. A box-type current sensor according to claim 1, characterized in that: The insertion rods (8) are respectively inserted into the interior of the insertion holes (7) and are slidably connected thereto.

3. The box-type current sensor according to claim 1, characterized in that: One end of the insert block (6) away from the insert rod (8) is respectively connected to the auxiliary slot (5), and one end of the insert rod (8) passing through the auxiliary slot (5) is respectively inserted into the inside of a limiting groove (17) with a matching position.

4. The box-type current sensor according to claim 1, characterized in that: The inner diameters of the auxiliary slot (5) and the limiting slot (17) respectively match the outer diameter of the insert block (6).

5. The box-type current sensor according to claim 1, characterized in that: The thickness of the traction plate (12) matches the thickness of the traction groove (11), one end of the traction plate (12) close to the adjustment groove (13) is fixedly connected to the adjustment block (14), and one end of the traction plate (12) away from the adjustment block (14) is fixedly connected to a matching plug block (6).

6. The box-type current sensor according to claim 1, characterized in that: Both ends of the bottom groove (2) are provided with mounting grooves (15), and both ends of the inside of the mounting groove (15) are provided with screws (16).

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