Power line harness overcurrent protection device

Abstract

The utility model discloses a power line harness overcurrent protection device, and specifically relates to the technical field of overcurrent protection, the device comprises a protection box, the upper end of the protection box is open, a sealing cover plate is hinged to the opening, a controller and an alarm are fixedly installed at the bottom end in the protection box, and the inner wall of the protection box is provided with an alarm. A current sensor is fixedly mounted above the controller; a display screen is fixedly installed on the front end face of the sealing cover plate, the current sensor is electrically connected with the controller, and the controller is electrically connected with the alarm and the display screen. The device can achieve the automatic detection and protection of the current of the power line harness, is good in connection stability, is convenient to carry, and is high in practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of overcurrent protection, in particular to an overcurrent protection device for a power line harness. Background Art

[0002] When the current in the power line harness is too large, it will damage the equipment connected to it, so it is necessary to detect the current in the power line harness, and then an overcurrent protection device is needed. However, the existing overcurrent protection device has the following problems:

[0003] It only has a reminder function for excessive current in the power line harness, and it is difficult to monitor the current in real time, and further difficult to prevent the excessive current in the power line harness in advance.

[0004] Therefore, we make improvements to this and propose a power line harness overcurrent protection device. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a power line harness overcurrent protection device, comprising a protection box, the upper end of the protection box is open, and a sealing cover is hingedly installed at the open end, a controller and an alarm are fixedly installed at the bottom end of the protection box, and a current sensor is fixedly installed on the inner wall of the protection box and located above the controller;

[0007] A display screen is fixedly mounted on the front end surface of the sealing cover plate, the current sensor is electrically connected to the controller, and the controller is electrically connected to the alarm and the display screen.

[0008] As a preferred technical solution of the utility model, a second positioning side plate is fixedly installed at the middle position of the upper end surface of the sealing cover plate, and a first positioning side plate is fixedly installed at the middle position of the front end surface of the top of the protection box.

[0009] As a preferred technical solution of the utility model, a first magnet block is embedded and fixedly installed on the upper end surface of the first positioning side plate, and a second magnet block is embedded and fixedly installed on the front end surface of the second positioning side plate. The first magnet block and the second magnet block are positioned correspondingly and are magnetically attracted to each other.

[0010] As an optimal technical solution of the utility model, positioning openings are provided on both ends of the left and right ends of the protection box, the positioning openings pass through the side ends of the protection box, a positioning splint is slidably installed on the inner wall of the positioning opening along the vertical direction, a positioning rod is fixedly installed at the middle position of the upper end surface of the positioning splint, the upper end of the positioning rod slides through the top inner side of the positioning opening, and extends to the inside of the protection box, and is fixedly connected to the top inner side of the protection box through a positioning spring.

[0011] As a preferred technical solution of the utility model, a fourth positioning side plate is fixedly installed on the rear end surface of the bottom of the sealing cover plate, and a third positioning side plate is fixedly installed on the rear end surface of the top of the protection box.

[0012] As a preferred technical solution of the utility model, a third magnet block is embedded and fixedly installed on the upper end surface of the third positioning side plate, and a fourth magnet block is embedded and fixedly installed on the lower end surface of the fourth positioning side plate. The positions of the third magnet block and the fourth magnet block correspond to each other and are magnetically attracted to each other.

[0013] The beneficial effects of the utility model are:

[0014] 1. This type of power cord harness overcurrent protection device first sets a maximum value for the controller. When in use, the power cord harness to be tested can be passed through the positioning port on one side of the protection box and connected to the current sensor. The other end of the current sensor is connected to other wires. The other wires pass through the positioning port on the other side of the protection box and are connected to other equipment to complete the circuit; the current sensor can collect the current information in the power cord harness and transmit the current information to the controller. The controller can convert the current information into data. When the data is greater than the maximum value, it means that the current in the power cord harness is too large at this time. The controller can send a command to the alarm, and the alarm can start to alarm. The controller can send the current data to the display screen, and the display screen can display the current information in the power cord harness in real time, which is convenient for the staff to monitor and protect in real time.

[0015] 2. This type of power cord harness overcurrent protection device, when installing the power cord harness to be tested, the positioning clamp can be lifted up to compress the positioning spring, and then the power cord harness to be tested is passed through the positioning opening to be connected to the current sensor, and then the positioning clamp is released. At this time, the positioning spring recovers its deformation, and the positioning clamp moves down to fix the power cord harness to be tested at the bottom end of the inner side of the positioning opening, thereby positioning the power cord harness to be tested and improving the stability of the connection between the power cord harness to be tested and the current sensor.

[0016] 3. After using the power cord harness overcurrent protection device, the sealing cover can be flipped over to cover the upper end of the protection box to seal the upper opening of the protection box. At this time, the first magnet block contacts and adsorbs the second magnet block, thereby fixing the sealing cover to the upper end of the protection box, thereby achieving sealed protection for the current sensor, controller and alarm, and is also convenient to carry.

[0017] The utility model can realize automatic detection and protection of the current of the power line harness, and has good connection stability, is convenient to carry and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a power line harness overcurrent protection device of the utility model;

[0020] Figure 2 It is a left side view of a power line harness overcurrent protection device of the utility model;

[0021] Figure 3 The utility model is a rear side view of a power line harness overcurrent protection device.

[0022] In the figure: 1. protection box; 2. current sensor; 3. first positioning side plate; 4. controller; 5. display screen; 6. second positioning side plate; 7. sealing cover plate; 8. alarm; 9. positioning port; 10. positioning rod; 11. positioning clamping plate; 12. third positioning side plate; 13. fourth positioning side plate. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1-3 As shown, the utility model is a power line harness overcurrent protection device, comprising a protection box 1, the upper end of the protection box 1 is open, and a sealing cover plate 7 is hingedly installed at the open end, a controller 4 and an alarm 8 are fixedly installed at the bottom end of the protection box 1, and a current sensor 2 is fixedly installed on the inner wall of the protection box 1 and located above the controller 4;

[0025] A display screen 5 is fixedly mounted on the front end surface of the sealing cover plate 7 . The current sensor 2 is electrically connected to the controller 4 . The controller 4 is electrically connected to the alarm 8 and the display screen 5 .

[0026] The controller 4 is a SC200 universal controller. A maximum value is first set for the controller 4. When in use, the power line harness to be tested can be passed through the positioning port 9 on one side of the protection box 1 and connected to the current sensor 2. The other end of the current sensor 2 is externally connected to other wires. The other wires pass through the positioning port 9 on the other side of the protection box 1 and are connected to other devices to complete the circuit.

[0027] The current sensor 2 can collect the current information in the power line harness and transmit the current information to the controller 4. The controller 4 can convert the current information into data. When the data is greater than the maximum value, it means that the current in the power line harness is too large. Then the controller 4 can send a command to the alarm 8, and the alarm 8 can start to alarm.

[0028] In addition, the controller 4 can send the current data to the display screen 5, and the display screen 5 can display the current information in the power line harness in real time, so as to facilitate the staff to monitor and protect in real time.

[0029] In this embodiment, Figure 1 As shown, a second positioning side plate 6 is fixedly installed at the middle position of the upper end surface of the sealing cover plate 7, and a first positioning side plate 3 is fixedly installed at the middle position of the top front end surface of the protection box 1.

[0030] A first magnet block is embedded and fixedly installed on the upper end surface of the first positioning side plate 3, and a second magnet block is embedded and fixedly installed on the front end surface of the second positioning side plate 6. The first magnet block and the second magnet block are located correspondingly and are magnetically attracted to each other.

[0031] After use, the sealing cover plate 7 can be flipped over and covered on the upper end of the protection box 1 to seal the upper end opening of the protection box 1. At this time, the first magnet block contacts and adsorbs the second magnet block, thereby fixing the sealing cover plate 7 on the upper end of the protection box 1.

[0032] like Figure 2 As shown, positioning openings 9 are provided at both ends of the left and right ends of the protection box 1. The positioning openings 9 pass through the side ends of the protection box 1. A positioning clamp 11 is slidably installed on the inner wall of the positioning opening 9 along the vertical direction. A positioning rod 10 is fixedly installed at the middle position of the upper end surface of the positioning clamp 11. The upper end of the positioning rod 10 slides through the top inner side of the positioning opening 9 and extends to the inside of the protection box 1, and is fixedly connected to the top inner side of the protection box 1 through a positioning spring.

[0033] When the power line harness to be tested is installed, the positioning clamp can be lifted up to compress the positioning spring. Then, the power line harness to be tested is passed through the positioning opening 9 to be connected to the current sensor 2, and then the positioning clamp 11 is released. At this time, the positioning spring recovers its deformation, and the positioning clamp 11 moves down to fix the power line harness to be tested at the bottom end inside the positioning opening 9, thereby positioning the power line harness to be tested and improving the stability of the connection between the power line harness to be tested and the current sensor 2.

[0034] like Figure 3 As shown, a fourth positioning side plate 13 is fixedly mounted on the rear end surface of the bottom of the sealing cover plate 7 , and a third positioning side plate 12 is fixedly mounted on the rear end surface of the top of the protection box 1 .

[0035] A third magnet block is embedded and fixedly installed on the upper end surface of the third positioning side plate 12, and a fourth magnet block is embedded and fixedly installed on the lower end surface of the fourth positioning side plate 13. The third magnet block and the fourth magnet block are located correspondingly and are magnetically attracted to each other.

[0036] When in use, the sealing cover plate 7 is turned over until the third positioning side plate 12 contacts the fourth positioning side plate 13 , and then the third magnet block contacts the fourth magnet block and is adsorbed, thereby achieving the positioning of the sealing cover plate 7 .

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A power line harness overcurrent protection device, characterized in that: The invention comprises a protection box (1), wherein the upper end of the protection box (1) is open, and a sealing cover plate (7) is hingedly installed at the open end, a controller (4) and an alarm (8) are fixedly installed at the bottom end of the interior of the protection box (1), and a current sensor (2) is fixedly installed on the inner wall of the protection box (1) and located above the controller (4); A display screen (5) is fixedly mounted on the front end surface of the sealing cover plate (7); the current sensor (2) is electrically connected to the controller (4); and the controller (4) is electrically connected to the alarm (8) and the display screen (5).

2. A power line harness overcurrent protection device according to claim 1, characterized in that: A second positioning side plate (6) is fixedly mounted at the middle position of the upper end surface of the sealing cover plate (7), and a first positioning side plate (3) is fixedly mounted at the middle position of the front end surface of the top of the protection box (1).

3. A power line harness overcurrent protection device according to claim 2, characterized in that: A first magnet block is embedded and fixedly mounted on the upper end surface of the first positioning side plate (3), and a second magnet block is embedded and fixedly mounted on the front end surface of the second positioning side plate (6). The first magnet block and the second magnet block are positioned correspondingly and are magnetically attracted to each other.

4. A power line harness overcurrent protection device according to claim 3, characterized in that: The protection box (1) is provided with positioning openings (9) at both left and right ends. The positioning openings (9) penetrate the side ends of the protection box (1). A positioning clamp (11) is slidably mounted on the inner wall of the positioning opening (9) along the vertical direction. A positioning rod (10) is fixedly mounted at the middle position of the upper end surface of the positioning clamp (11). The upper end of the positioning rod (10) slides through the inner top end of the positioning opening (9) and extends into the interior of the protection box (1), and is fixedly connected to the inner top end of the protection box (1) via a positioning spring.

5. A power line harness overcurrent protection device according to claim 4, characterized in that: A fourth positioning side plate (13) is fixedly mounted on the rear end surface of the bottom of the sealing cover plate (7), and a third positioning side plate (12) is fixedly mounted on the rear end surface of the top of the protection box (1).

6. A power line harness overcurrent protection device according to claim 5, characterized in that: A third magnet block is embedded and fixedly mounted on the upper end surface of the third positioning side plate (12), and a fourth magnet block is embedded and fixedly mounted on the lower end surface of the fourth positioning side plate (13). The third magnet block and the fourth magnet block are positioned correspondingly and are magnetically attracted to each other.

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