Insulated anti-interference double-layer cover for current sensor

Abstract

The utility model relates to the technical field of current sensors, and discloses an insulating anti-interference double-layer cover for a current sensor, which comprises a lower shell and an upper shell, a hinge is fixedly mounted between the lower shell and the upper shell, an insulating inner frame is fixedly mounted on the bottom surface of an inner cavity of the lower shell, and a sealing cover is fixedly mounted on the insulating inner frame. A locking mechanism is arranged in the middle of the bottom face of an inner cavity of the lower shell, vertical plates are fixedly installed on the left side and the right side of the bottom face of the inner cavity of the lower shell, a two-way screw is rotatably installed between the vertical plates on the front side and the rear side, a clamping mechanism is arranged on the side wall of the two-way screw, and current sensors are placed on the left side and the right side of the bottom face of the inner cavity of the lower shell. Detection mechanisms are arranged on the front side wall and the rear side wall of the current sensor. According to the utility model, through the arrangement of the locking mechanism, the lower housing and the upper housing can be rapidly closed and locked, through the arrangement of the clamping mechanism, the current sensor can be limited and fixed, and through the arrangement of the detection mechanism and the heat dissipation mechanism, the current sensor can be cooled.

Description

Technical Field

[0001] This utility model relates to the field of current sensor technology, specifically to a double-layer cover for an insulating and interference-resistant current sensor. Background Technology

[0002] A current sensor is a detection device that can sense the information of the measured current and transform the sensed information into an electrical signal or other required form of information output that meets certain standards, in order to meet the requirements of information transmission, processing, storage, display, recording and control. During the use of current sensors, a double-layer cover is used to achieve the effect of insulation and anti-interference, while also providing protection.

[0003] Existing current sensors are usually directly exposed to the outside during use, making them highly susceptible to impacts from external objects, which seriously affects their lifespan. At the same time, because they are directly exposed to the outside environment, moisture and temperature cannot be controlled, causing the current sensor to be easily interfered with signal transmission due to high temperature and humidity, resulting in reduced working efficiency. Therefore, there is an urgent need for a double-layer cover for insulating and interference-resistant current sensors to solve these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a double-layer cover for an insulating and interference-resistant current sensor to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-layer cover for an insulating and interference-resistant current sensor, comprising a lower housing and an upper housing, wherein a hinge is fixedly installed between the lower housing and the upper housing, characterized in that: an insulating inner frame is fixedly installed on the bottom surface of the inner cavity of the lower housing, a locking mechanism is provided in the middle of the bottom surface of the inner cavity of the lower housing, upright plates are fixedly installed on the left and right sides of the bottom surface of the inner cavity of the lower housing, a bidirectional screw is rotatably installed between the upright plates on the front and rear sides, a clamping mechanism is provided on the side wall of the bidirectional screw, a current sensor is placed on the left and right sides of the bottom surface of the inner cavity of the lower housing, a detection mechanism is provided on the front and rear side walls of the current sensor, a heat dissipation mechanism is provided on the top surface of the inner cavity of the upper housing, and a mesh is fixedly installed on the front of the bottom surface of the inner cavity of the lower housing, wherein activated carbon particles are placed inside the mesh.

[0008] Preferably, the locking mechanism includes a frame fixedly installed in the middle of the bottom surface of the lower housing cavity, and a hook plate fixedly installed in the top surface of the upper housing cavity. The hook plate is made of rubber, and a hook groove is provided on the side wall of the frame, so that the hook plate can be engaged into the hook groove.

[0009] Preferably, the clamping mechanism includes a clamping motor fixedly mounted on the bottom surface of the inner cavity of the lower housing via a frame. The output shaft end of the clamping motor is fixedly connected to a bidirectional screw. The front and rear ends of the bidirectional screw have opposite thread directions. Sliding sleeves are threadedly installed on the front and rear end sidewalls of the bidirectional screw, and extension rods are fixedly installed on the sidewalls of the sliding sleeves.

[0010] Preferably, a limiting joint is fixedly installed at the end of the side wall of the extension rod, the limiting joint slides on the bottom surface of the inner cavity of the lower housing, a lug is rotatably installed in the inner cavity of the limiting joint, a clamping plate is attached to the front and rear end faces of the current sensor, a connecting block is rotatably installed on the left and right sides of the rear side wall of the clamping plate, and a spring rod is fixedly installed between the lug and the connecting block.

[0011] Preferably, the detection mechanism includes a limiting cylinder fixedly installed on the side wall of the clamping plate, and a limiting rod slidably installed in the inner cavity of the limiting cylinder. A heat-conducting plate is fixedly installed on the front end face of the limiting rod, a thermal spring is fixedly wound on the side wall of the limiting rod, and an end is fixedly installed on the rear end face of the limiting rod.

[0012] Preferably, one end of the thermal spring is fixedly connected to the heat-conducting plate, the other end of the thermal spring is fixedly installed on the inner wall of the limiting cylinder, the heat-conducting plate is slidably connected to the limiting cylinder, a stop rod is fixedly installed on the front end face of the end, and a piezoelectric switch is fixedly installed on the rear end face of the limiting cylinder at the corresponding position of the stop rod.

[0013] Preferably, the heat dissipation mechanism includes a flow guide frame fixedly installed on the top surface of the inner cavity of the upper housing, and a heat dissipation fan fixedly installed on the inner side wall of the flow guide frame. The heat dissipation fan is electrically connected to a piezoelectric switch, and a heat dissipation port is provided on the upper end surface of the upper housing corresponding to the flow guide frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the current sensor is placed between the clamping plates on the front and rear sides. At this time, the bidirectional screw can be rotated by starting the clamping motor. The sliding sleeve is threadedly connected to the bidirectional screw. Under the constraint of the limiting joint, the sliding sleeve on the front and rear sides can drive the extension rod to bring the limiting joint closer to each other. The clamping plate connected to the spring rod through the lug block, connecting block and spring rod also approaches. At this time, the clamping and fixing of the current sensor can be completed. With the setting of the spring rod, when the bidirectional screw works continuously, the position of the clamping plate remains fixed. As the limiting joints on the front and rear sides approach, a certain load force can be applied to the spring rod, avoiding damage to the current sensor caused by the clamping plate being too hard, thus improving the safety of the entire device during clamping.

[0016] 2. In this utility model, when the current sensor is working, the surface temperature of the current sensor will continuously rise and be transferred to the thermal spring through the heat-conducting plate. At this time, the thermal spring will gradually extend, causing the end of the limit rod driven by the heat-conducting plate to move forward. When the stop rod on the end contacts the piezoelectric switch, the piezoelectric switch can control the cooling fan to turn on, so as to warn that the working temperature of the current sensor is too high and needs to be cooled down in time. This avoids the current sensor from working in a high-temperature environment all the time, prevents signal interference caused by the high-temperature environment to the current sensor, and improves the efficiency of the entire device. The activated carbon particles placed in the mesh can absorb the moisture in the lower and upper shells, ensuring the dryness of the internal environment of the lower and upper shells, further improving the efficiency of the entire device. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the overall structure of a double-layer cover for an insulating and interference-resistant current sensor according to this utility model;

[0018] Figure 2 This is a bottom view of the overall structure of the double-layer cover for an insulating and interference-resistant current sensor according to this utility model.

[0019] Figure 3 This is a top view schematic diagram of the overall structure of the double-layer cover for an insulating and interference-resistant current sensor according to this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the double-layer cover for an insulating and interference-resistant current sensor according to the present invention.

[0021] In the diagram: 1. Lower housing; 2. Upper housing; 3. Insulating inner frame; 4. Locking mechanism; 41. Platform frame; 411. Hook groove; 42. Hook plate; 5. Vertical plate; 6. Bidirectional screw; 7. Clamping mechanism; 71. Clamping motor; 72. Sliding sleeve; 73. Extension rod; 74. Limiting section; 75. Lug block; 76. Clamping plate; 77. Connecting block; 78. Spring rod; 8. Detection mechanism; 81. Limiting cylinder; 82. Limiting rod; 83. Heat-conducting plate; 84. Thermosensitive spring; 85. End; 86. Abutment rod; 87. Piezoelectric switch; 9. Heat dissipation mechanism; 91. Air guide frame; 92. Heat dissipation fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a double-layer cover technical solution for insulating and anti-interference current sensors:

[0024] A double-layer cover for an insulating and interference-resistant current sensor includes a lower housing 1 and an upper housing 2. A hinge is fixedly installed between the lower housing 1 and the upper housing 2. An insulating inner frame 3 is fixedly installed on the bottom surface of the inner cavity of the lower housing 1. A locking mechanism 4 is provided in the middle of the bottom surface of the inner cavity of the lower housing 1. Upright plates 5 are fixedly installed on the left and right sides of the bottom surface of the inner cavity of the lower housing 1. A bidirectional screw 6 is rotatably installed between the upright plates 5 on the front and rear sides. A clamping mechanism 7 is provided on the side wall of the bidirectional screw 6. A current sensor is placed on the left and right sides of the bottom surface of the inner cavity of the lower housing 1. A detection mechanism 8 is provided on the front and rear side walls of the current sensor. A heat dissipation mechanism 9 is provided on the top surface of the inner cavity of the upper housing 2. A mesh is fixedly installed on the front of the bottom surface of the inner cavity of the lower housing 1, and activated carbon particles are placed inside the mesh.

[0025] Furthermore, the locking mechanism 4 includes a frame 41 fixedly installed in the middle of the bottom surface of the inner cavity of the lower housing 1, and a hook plate 42 fixedly installed in the top surface of the inner cavity of the upper housing 2. The hook plate 42 is made of rubber, and a hook groove 411 is provided on the side wall of the frame 41, so that the hook plate 42 can be engaged into the hook groove 411.

[0026] It should be noted that the user can flip the upper housing 2 to cover the lower housing 1. At this time, the hook plate 42 inside the upper housing 2 can be locked into the hook groove 411 on the frame 41 to lock the lower housing 1 and the upper housing 2, ensuring the safety of the internal current sensor. When maintaining the current sensor, the user can squeeze the hook plate 42 to deform it and remove it from the hook groove 411, which can complete the separation of the lower housing 1 and the upper housing 2, which is convenient and quick.

[0027] Furthermore, the clamping mechanism 7 includes a clamping motor 71 fixedly mounted on the bottom surface of the inner cavity of the lower housing 1 via a frame. The output shaft end of the clamping motor 71 is fixedly connected to the bidirectional screw 6. The front and rear ends of the bidirectional screw 6 have opposite thread directions. Sliding sleeves 72 are threaded on the front and rear end side walls of the bidirectional screw 6. An extension rod 73 is fixedly mounted on the side wall of the sliding sleeve 72.

[0028] A limiting joint 74 is fixedly installed at the end of the side wall of the extension rod 73. The limiting joint 74 slides on the bottom surface of the inner cavity of the lower housing 1. A lug block 75 is rotatably installed in the inner cavity of the limiting joint 74. A clamping plate 76 is attached to the front and rear end faces of the current sensor. A connecting block 77 is rotatably installed on the left and right sides of the rear side wall of the clamping plate 76. A spring rod 78 is fixedly installed between the lug block 75 and the connecting block 77.

[0029] It should be noted that when the current sensor is placed between the clamping plates 76 on the front and rear sides, the bidirectional screw 6 can be rotated by starting the clamping motor 71. The sliding sleeve 72 is threadedly connected to the bidirectional screw 6. Under the constraint of the limiting joint 74, the sliding sleeve 72 on the front and rear sides can drive the extension rod 73 to bring the limiting joint 74 closer to each other. The clamping plate 76, which is connected to the spring rod 78 through the lug block 75 and the connecting block 77, also approaches. At this time, the clamping and fixing of the current sensor can be completed.

[0030] Furthermore, the detection mechanism 8 includes a limiting cylinder 81 fixedly installed on the side wall of the clamping plate 76, and a limiting rod 82 slidably installed in the inner cavity of the limiting cylinder 81. A heat-conducting plate 83 is fixedly installed on the front end face of the limiting rod 82, a thermal spring 84 is fixedly wound on the side wall of the limiting rod 82, and an end 85 is fixedly installed on the rear end face of the limiting rod 82.

[0031] One end of the thermal spring 84 is fixedly connected to the heat-conducting plate 83, and the other end of the thermal spring 84 is fixedly installed on the inner wall of the limiting cylinder 81. The heat-conducting plate 83 is slidably connected to the limiting cylinder 81. A stop rod 86 is fixedly installed on the front end face of the end 85, and a piezoelectric switch 87 is fixedly installed on the rear end face of the limiting cylinder 81 at the corresponding position of the stop rod 86.

[0032] It should be noted that when the current sensor is working, the surface temperature of the current sensor will continuously rise and be transferred to the thermal spring 84 through the heat conduction plate 83. At this time, the thermal spring 84 will gradually extend, causing the end 85 of the heat conduction plate 83 to move forward when it drives the limit rod 82. When the stop rod 86 on the end 85 contacts the piezoelectric switch 87, the piezoelectric switch 87 can control the cooling fan 92 to turn on, so as to warn that the operating temperature of the current sensor is too high and that it needs to be cooled down in time. This avoids the current sensor from working in a high-temperature environment, prevents signal interference caused by the high temperature environment, and improves the efficiency of the entire device.

[0033] Furthermore, the heat dissipation mechanism 9 includes a flow guide frame 91 fixedly installed on the top surface of the inner cavity of the upper housing 2, and a heat dissipation fan 92 fixedly installed on the inner side wall of the flow guide frame 91. The heat dissipation fan 92 is electrically connected to the piezoelectric switch 87, and a heat dissipation port is opened at the upper end surface of the upper housing 2 corresponding to the flow guide frame 91.

[0034] Working principle:

[0035] With the hinge design, the user can flip the upper housing 2 to cover the lower housing 1. At this time, the hook plate 42 inside the upper housing 2 can be locked into the hook groove 411 on the frame 41 to lock the lower housing 1 and the upper housing 2, ensuring the safety of the internal current sensor. When maintaining the current sensor, the user can squeeze the hook plate 42 to deform it and remove it from the hook groove 411, which can complete the separation of the lower housing 1 and the upper housing 2, which is convenient and quick.

[0036] When installing the current sensor, place the current sensor between the clamping plates 76 on the front and rear sides. At this time, the bidirectional screw 6 can be rotated by starting the clamping motor 71. The sliding sleeve 72 is threadedly connected to the bidirectional screw 6. Under the constraint of the limiting joint 74, the sliding sleeve 72 on the front and rear sides can drive the extension rod 73 to bring the limiting joint 74 closer to each other. The clamping plate 76, which is connected to the spring rod 78 through the lug block 75 and the connecting block 77, also approaches. At this time, the clamping and fixing of the current sensor can be completed.

[0037] With the spring rod 78 in place, when the bidirectional screw 6 is working continuously, the position of the clamping plate 76 remains fixed. As the limiting sections 74 on the front and rear sides approach each other, the spring rod 78 can be given a certain load force, which avoids the clamping plate 76 from being too hard and causing damage to the current sensor, thus improving the safety of the entire device during clamping.

[0038] When the current sensor is working, the surface temperature of the current sensor will continuously rise and be transferred to the thermal spring 84 through the heat conduction plate 83. At this time, the thermal spring 84 will gradually extend, causing the end 85 of the heat conduction plate 83 to move forward when it drives the limit rod 82. When the stop rod 86 on the end 85 contacts the piezoelectric switch 87, the piezoelectric switch 87 can control the cooling fan 92 to turn on, so as to warn that the operating temperature of the current sensor is too high and needs to be cooled in time. This avoids the current sensor from working in a high-temperature environment, prevents signal interference caused by the high-temperature environment, and improves the efficiency of the entire device.

[0039] By placing activated carbon particles inside the mesh, moisture inside the lower shell 1 and upper shell 2 can be absorbed, ensuring the dryness of the internal environment of the lower shell 1 and upper shell 2, and further improving the efficiency of the entire device during operation.

[0040] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A double-layer cover for an insulating and interference-resistant current sensor, comprising a lower housing (1) and an upper housing (2), wherein a hinge is fixedly installed between the lower housing (1) and the upper housing (2), characterized in that: An insulating inner frame (3) is fixedly installed on the bottom surface of the inner cavity of the lower housing (1). A locking mechanism (4) is provided in the middle of the bottom surface of the inner cavity of the lower housing (1). Upright plates (5) are fixedly installed on the left and right sides of the bottom surface of the inner cavity of the lower housing (1). A bidirectional screw (6) is rotatably installed between the upright plates (5) on the front and rear sides. A clamping mechanism (7) is provided on the side wall of the bidirectional screw (6). Current sensors are placed on the left and right sides of the bottom surface of the inner cavity of the lower housing (1). A detection mechanism (8) is provided on the front and rear side walls of the current sensors. A heat dissipation mechanism (9) is provided on the top surface of the inner cavity of the upper housing (2). A mesh is fixedly installed on the front of the bottom surface of the inner cavity of the lower housing (1). Activated carbon particles are placed inside the mesh.

2. The double-layer cover for an insulating and interference-resistant current sensor according to claim 1, characterized in that: The locking mechanism (4) includes a frame (41) fixedly installed in the middle of the bottom surface of the inner cavity of the lower housing (1) and a hook plate (42) fixedly installed in the top surface of the inner cavity of the upper housing (2). The hook plate (42) is made of rubber. A hook groove (411) is provided on the side wall of the frame (41). The hook plate (42) can be engaged in the hook groove (411).

3. The double-layer cover for an insulating and interference-resistant current sensor according to claim 1, characterized in that: The clamping mechanism (7) includes a clamping motor (71) fixedly mounted on the bottom surface of the inner cavity of the lower housing (1) via a frame. The output shaft end of the clamping motor (71) is fixedly connected to the bidirectional screw (6). The front and rear ends of the bidirectional screw (6) have opposite thread directions. The front and rear end sidewalls of the bidirectional screw (6) are threaded with sliding sleeves (72), and the sidewalls of the sliding sleeves (72) are fixedly mounted with extension rods (73).

4. The double-layer cover for an insulating and interference-resistant current sensor according to claim 3, characterized in that: A limiting joint (74) is fixedly installed at the end of the side wall of the extension rod (73). The limiting joint (74) slides on the bottom surface of the inner cavity of the lower housing (1). A lug block (75) is rotatably installed in the inner cavity of the limiting joint (74). A clamping plate (76) is attached to the front and rear end faces of the current sensor. A connecting block (77) is rotatably installed on the left and right sides of the rear side wall of the clamping plate (76). A spring rod (78) is fixedly installed between the lug block (75) and the connecting block (77).

5. A double-layer cover for an insulating and interference-resistant current sensor according to claim 4, characterized in that: The detection mechanism (8) includes a limiting cylinder (81) fixedly installed on the side wall of the clamping plate (76) and a limiting rod (82) slidably installed in the inner cavity of the limiting cylinder (81). A heat-conducting plate (83) is fixedly installed on the front end face of the limiting rod (82), a thermal spring (84) is fixedly wound on the side wall of the limiting rod (82), and an end (85) is fixedly installed on the rear end face of the limiting rod (82).

6. A double-layer cover for an insulating and interference-resistant current sensor according to claim 5, characterized in that: One end of the thermal spring (84) is fixedly connected to the heat-conducting plate (83), and the other end of the thermal spring (84) is fixedly installed on the inner wall of the limiting cylinder (81). The heat-conducting plate (83) is slidably connected to the limiting cylinder (81). A stop rod (86) is fixedly installed on the front end face of the end (85), and a piezoelectric switch (87) is fixedly installed on the rear end face of the limiting cylinder (81) at the corresponding position of the stop rod (86).

7. A double-layer cover for an insulating and interference-resistant current sensor according to claim 6, characterized in that: The heat dissipation mechanism (9) includes a flow guide frame (91) fixedly installed on the top surface of the inner cavity of the upper housing (2) and a heat dissipation fan (92) fixedly installed on the inner side wall of the flow guide frame (91). The heat dissipation fan (92) is electrically connected to the piezoelectric switch (87). A heat dissipation port is opened at the upper end surface of the upper housing (2) corresponding to the flow guide frame (91).

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