Current sensor with current safety protection

Abstract

The utility model relates to the technical field of current sensors, in particular to a current sensor with current safety protection, which is internally provided with a sensor body, and the lower end face of the sensor body is fixedly provided with two bottom working frames in bilateral symmetry. A lifting rotating shaft rotationally connected with the lower end face of the sensor body is arranged on one side, close to the symmetric center, of the upper end face of the bottom working frame; according to the utility model, when the temperature measuring rod detects that the working temperature of the bottom interface is abnormal, the lifting rotating shaft rotates to drive the lifting moving block to move downwards, so that the clamping moving frame and the scraping rod moving block move downwards, and the scraping rod moving block pushes the joint downwards from the bottom interface; and under the downward thrust of the clamping moving frame and the clamping moving block, the connector is quickly disconnected from the bottom interface, so that safety protection work can be carried out on a circuit, the safety performance of a subsequent device is ensured, and the situation of fire caused by overheating can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of current sensors, and particularly relates to a current sensor with current safety protection. Background Art

[0002] A current sensor is a detection device that can sense the information of the measured current and transform the detected information into an electrical signal or other required forms of information that meet certain standard requirements according to a certain rule, so as to meet the requirements of information transmission, processing, storage, display, recording, and control.

[0003] During the connection process of the current sensor, when the sensor detects an abnormal circuit current, it cannot cut off the power in time, which easily leads to the situation that the temperature of the internal components of the sensor continuously rises and causes damage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a current sensor with current safety protection to overcome the above-mentioned defects in the prior art.

[0005] According to a current sensor with current safety protection of the utility model, it includes a sensor body. Two symmetric bottom working frames are fixedly arranged on the lower end surface of the sensor body. One side of the upper end surface of the bottom working frame close to the symmetry center is provided with a lifting rotating shaft rotatably connected to the lower end surface of the sensor body.

[0006] Two liftable moving blocks that can move up and down are arranged on the lower side of the sensor body. The outer circular surface of the lifting rotating shaft is threadedly connected to the liftable moving block. A scraping rod moving block is fixedly arranged on the upper end surface of the liftable moving block, and a clamping moving frame is fixedly arranged on the lower end surface of the liftable moving block.

[0007] In some embodiments, a scraping frame bottom cavity with an opening downward is arranged on the lower end surface of the sensor body. A bottom interface is fixedly arranged in the scraping frame bottom cavity, and the upper end surface of the bottom interface is communicated with the sensor body.

[0008] In some embodiments, a disconnecting motor is fixedly arranged on the lower end surface of the bottom working frame, and the lower end surface of the lifting rotating shaft is power-connected to the disconnecting motor.

[0009] In some embodiments, a scraping rod moving block is fixedly arranged on the upper end surface of the liftable moving block, and the scraping rod moving block is cooperatively installed with the scraping frame bottom cavity.

[0010] In some embodiments, a wire outlet interface communicated with an external wire outlet interface is arranged on the upper end surface of the sensor body.

[0011] In some embodiments, a clamping moving block that is symmetric front and back and can move back and forth is provided inside the clamping moving frame, and a plurality of lifting springs are fixedly connected between the end face on one side of the clamping moving block away from the symmetry center and the end face on one side of the clamping moving frame close to the symmetry center.

[0012] In some embodiments, a control panel is fixedly provided on the front end face of the sensor body, and the control panel can be used to control the start and stop of all motors and devices of the present utility model.

[0013] In some embodiments, a temperature measuring rod communicating with the front end face of the bottom cavity of the scraping frame is provided on the rear end face of the control panel, and the temperature measuring rod can detect the temperature inside the bottom cavity of the scraping frame.

[0014] Compared with the prior art, the advantages of the present utility model are:

[0015] 1. In the present utility model, the circuit connector passes through the middle parts of the clamping moving blocks on both sides and is electrically connected to the bottom interface. At this time, the lifting moving block is at the uppermost position, and the scraping rod moving blocks on both sides enter the bottom cavity of the scraping frame. The connector will fit with the clamping moving blocks on both sides, and under the resilience of the lifting springs, the connector is limited and fixed. At the same time, the lifting springs can also effectively prevent the connection from being unstable due to vibrations caused by external factors.

[0016] 2. In the present utility model, when the temperature measuring rod detects that the working temperature of the bottom interface is abnormal, the lifting rotating shaft will rotate, thereby driving the lifting moving block to move downward, causing the clamping moving frame and the scraping rod moving block to move downward. As a result, the scraping rod moving block will push the connector downward from the bottom interface, and under the downward thrust of the clamping moving frame and the clamping moving block, the connector is quickly disconnected from the bottom interface, so that safety protection work can be carried out on the circuit, ensuring the safety performance of the subsequent device, and also effectively preventing the occurrence of overheating and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present utility model;

[0018] Figure 2 is the bottom view of the present utility model;

[0019] Figure 3 is the top view of the present utility model;

[0020] Figure 4 is the right view of the present utility model;

[0021] Figure 5 is the present utility model Figure 4 structural schematic diagram of the component of the bottom working frame 23 in;

[0022] Figure 6 is the present utility modelFigure 5 Schematic diagram of the structure at the bottom cavity 24 of the middle scraping frame

[0023] In the figure:

[0024] 11. Sensor body; 12. Wire outlet interface; 13. Control panel; 14. Disconnecting motor; 15. Lifting and rotating shaft; 16. Lifting and moving block; 17. Scraping rod moving block; 18. Clamping and moving frame; 19. Bottom interface; 20. Clamping and moving block; 21. Lifting spring; 22. Temperature measuring rod; 23. Bottom working frame; 24. Bottom cavity of the scraping frame. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] Refer to Figures 1-6 , which is the first embodiment of the present invention. This embodiment provides an embodiment of a current sensor with current safety protection, including a sensor body 11. Two symmetric bottom working frames 23 are fixedly provided on the lower end surface of the sensor body 11. An elevating and rotating shaft 15 rotatably connected to the lower end surface of the sensor body 11 is provided on one side of the upper end surface of the bottom working frame 23 close to the symmetry center;

[0028] Two elevating and moving blocks 16 capable of moving up and down are provided on the lower side of the sensor body 11. The outer circumferential surface of the elevating and rotating shaft 15 is threadedly connected to the elevating and moving blocks 16. A scraping rod moving block 17 is fixedly provided on the upper end surface of the elevating and moving blocks 16, and a clamping and moving frame 18 is fixedly provided on the lower end surface of the elevating and moving blocks 16.

[0029] A bottom cavity 24 with an opening downward is provided on the lower end surface of the sensor body 11. A bottom interface 19 is fixedly provided in the bottom cavity 24, and the upper end surface of the bottom interface 19 communicates with the sensor body 11.

[0030] A disconnecting motor 14 is fixedly provided on the lower end surface of the bottom working frame 23, and the lower end surface of the elevating and rotating shaft 15 is power-connected to the disconnecting motor 14.

[0031] A scraping rod moving block 17 is fixedly provided on the upper end surface of the elevating and moving blocks 16, and the scraping rod moving block 17 is fitted and installed with the bottom cavity 24 of the scraping frame.

[0032] On the upper end face of the sensor body 11, there is an outgoing line interface 12 communicated with the external outgoing line interface.

[0033] Inside the clamping and moving frame 18, there are clamping and moving blocks 20 that are symmetric front and back and can move back and forth. Between the end face of the clamping and moving block 20 away from the symmetry center and the end face of the clamping and moving frame 18 close to the symmetry center, there are multiple lifting springs 21 fixedly connected.

[0034] On the front end face of the sensor body 11, a control panel 13 is fixedly provided. The control panel 13 can play a role in controlling the start and stop of all motors and devices of the present utility model.

[0035] On the rear end face of the control panel 13, there is a temperature measuring rod 22 communicated with the front end face of the bottom cavity 24 of the scraping frame. The temperature measuring rod 22 can detect the temperature inside the bottom cavity 24 of the scraping frame.

[0036] Specific working process:

[0037] When connecting the circuit and detecting the current, the circuit connector can pass through the middle parts of the two clamping and moving blocks 20 and then be electrically connected to the bottom interface 19. At this time, the lifting and moving block 16 is at the uppermost position, and the scraping rod moving blocks 17 on both sides enter the bottom cavity 24 of the scraping frame. The connector will fit with the two clamping and moving blocks 20, and under the resilience of the lifting spring 21, the connector is limited and fixed. The temperature measuring rod 22 and the internal components of the sensor body 11 perform the detection work on the circuit current and the interface temperature.

[0038] When the temperature measuring rod 22 detects that the working temperature of the bottom interface 19 is abnormal, it will cause the control panel 13 to control the start of the disconnecting motors 14 on both sides, thereby driving the lifting and rotating shaft 15 to rotate, and then driving the lifting and moving block 16 to move downward, causing the clamping and moving frame 18 and the scraping rod moving block 17 to move downward. Further, the scraping rod moving block 17 pushes the connector downward from the bottom interface 19, and under the downward thrust of the clamping and moving frame 18 and the clamping and moving block 20, the connector is quickly disconnected from the bottom interface 19, so as to be able to perform safety protection work on the circuit, ensure the safety performance of the subsequent device, and also effectively prevent the situation of overheating and catching fire.

[0039] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by any person skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A current sensor with current safety protection, comprising a sensor body (11), characterized in that: The lower end surface of the sensor body (11) is fixedly provided with two left-right symmetrical bottom working frames (23); the upper end surface of the bottom working frame (23) is provided with a lifting and rotating shaft (15) rotatably connected to the lower end surface of the sensor body (11) on one side close to the symmetry center; Two lifting blocks (16) capable of moving up and down are arranged on the lower side of the sensor body (11); the outer circumferential surface of the lifting rotating shaft (15) is threadedly connected to the lifting block (16); a scraper rod moving block (17) is fixedly arranged on the upper end surface of the lifting block (16); and a clamping moving frame (18) is fixedly arranged on the lower end surface of the lifting block (16).

2. A current sensor with current safety protection according to claim 1, characterized in that: The lower end surface of the sensor body (11) is provided with a scraper bottom cavity (24) opening downward, a bottom interface (19) is fixedly provided in the scraper bottom cavity (24), and the upper end surface of the bottom interface (19) is in communication with the sensor body (11).

3. A current sensor with current safety protection according to claim 1, characterized in that: A disconnecting motor (14) is fixedly provided on the lower end surface of the bottom working frame (23), and the lower end surface of the lifting and rotating shaft (15) is dynamically connected to the disconnecting motor (14).

4. A current sensor with current safety protection according to claim 2, characterized in that: A scraper rod moving block (17) is fixedly provided on the upper end surface of the lifting moving block (16), and the scraper rod moving block (17) is installed in coordination with the scraper frame bottom cavity (24).

5. The current sensor with current safety protection according to claim 1, characterized in that: The upper end surface of the sensor body (11) is provided with an outlet interface (12) which is in communication with an external outlet interface.

6. A current sensor with current safety protection according to claim 1, characterized in that: The clamping movable frame (18) is provided with a clamping movable block (20) which is symmetrical in front and back and can move forward and backward. A plurality of lifting springs (21) are fixedly connected between the end surface of the clamping movable block (20) away from the symmetry center and the end surface of the clamping movable frame (18) close to the symmetry center.

7. A current sensor with current safety protection according to claim 2, characterized in that: A control panel (13) is fixedly provided on the front end surface of the sensor body (11), and a temperature measuring rod (22) communicating with the front end surface of the scraper bottom cavity (24) is provided on the rear end surface of the control panel (13).

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