Cable fault detection device

Abstract

The utility model relates to the technical field of cable fault detection devices, and discloses a cable fault detection device, which comprises a cable fault detector box body, a control panel is arranged on the upper surface of the cable fault detector box body, and air inlet grilles are fixedly mounted on the inner surfaces of two vertical plates of the cable fault detector box body, a cooling mechanism is arranged in the cable fault detector box body, the cooling mechanism comprises a semiconductor refrigeration sheet, a cold conduction sheet, a cold conduction fan, a cooling fan and a plurality of baffle plates, the cable fault detection device can perform refrigeration through the semiconductor refrigeration sheet, and cold air is transmitted to the interior of the cable fault detector box body through the cold conduction sheet and the cold conduction fan; the interior of the cable fault detector box body is cooled, and the heat of the semiconductor chilling plate is led out through the cooling fan, so that the heat of the semiconductor chilling plate is prevented from interfering with the interior of the cable fault detector box body, the interior of the cable fault detector box body is kept to be properly and stably operated, and a machine is enabled to stably operate.

Description

Technical Field

[0001] The utility model relates to the technical field of cable fault detection devices, in particular to a cable fault detection device. Background Art

[0002] Cable fault testers are used to detect cable faults. The types and models of instruments have increased significantly. Now in the domestic cable fault test instrument market, there are many types and names of instruments supplied, including cable fault testers.

[0003] When measuring cable faults, the cable can be regarded as a uniformly distributed transmission line. According to the transmission line (long line) theory, a pulse voltage is applied to one end of the cable, and the pulse is transmitted along the line at a certain speed (determined by the dielectric constant and magnetic permeability of the cable medium). When the pulse encounters the fault point (or the impedance uneven point), it will be reflected. The transmission time △T between the sent pulse and the reflected pulse is recorded with a flash tester. The distance Lx of the fault point can be calculated according to the known transmission speed V, Lx = V·△T / 2. To measure the full length, the terminal reflected pulse can be used: L = V·T / 2. Similarly, if the full length of the cable is known, the pulse transmission speed can be measured: V = 2L / T. The pulse method test is divided into low-voltage pulse method and high-voltage pulse method. The test principles of the two are the same, but the way of generating pulses is different. The fault distance calculation of the intelligent tester is automatically completed by the instrument.

[0004] Existing cable fault testers generally connect multiple cables to perform tests simultaneously during testing to facilitate the calculation of the average value. However, connecting multiple cables simultaneously will cause huge heat generation, and the cable fault tester may malfunction when working in a high-temperature environment. Existing cable fault testers generally use fans to dissipate internal heat. Since the heat dissipation holes are fixed in size, the air intake volume cannot be adjusted to maximize heat exchange under different working conditions. Moreover, the heat dissipation of existing fans is affected by environmental factors. If the ambient temperature is too high, the heat exchange of hot air will lead to poor heat dissipation, affecting the operation of the cable fault tester. In view of this, a cable fault detection device is proposed. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the utility model provides a cable fault detection device, which solves the problem of poor heat dissipation of the cable fault detection device.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned purpose of improving the heat dissipation effect of the cable fault detection device, the present invention provides the following technical solution: a cable fault detection device, comprising a cable fault detector box, a control panel being provided on the upper surface of the cable fault detector box, and air inlet grilles being fixedly mounted on the inner surfaces of the two vertical panels of the cable fault detector box;

[0009] Among them, a cooling mechanism is provided in the box of the cable fault detector, which includes a semiconductor refrigeration plate, a cooling plate, a cooling fan, a heat dissipation fan, multiple baffles, multiple fixed rods, multiple support rods, multiple first fixed sticks, two vertical plates, two rings, two second fixed sticks, two rotating rods and two motors.

[0010] Preferably, the rear ends of the plurality of fixing rods are rotatably connected to the inner walls of the two air inlet grilles, and the front ends of the plurality of fixing rods pass through the front surface of the air inlet grilles;

[0011] Wherein, a plurality of support rod fixing sleeves are arranged on the outer surfaces of a plurality of fixing rods.

[0012] Preferably, the plurality of first fixing rods are rotatably sleeved on the inner surfaces of the plurality of support rods, the two vertical plates are rotatably sleeved on the outer surfaces of the plurality of first fixing rods, and the two rings are fixedly mounted on the upper surfaces of the two vertical plates.

[0013] Preferably, the two second fixing rods are respectively slidably sleeved on the inner surfaces of the two collars, and the two rotating rods are respectively fixedly sleeved on the outer surfaces of the two second fixing rods;

[0014] The two motors are respectively fixedly mounted on the upper surfaces of the two air inlet grilles, and the output shafts of the two motors are respectively fixedly sleeved on the inner surfaces of the two rotating rods.

[0015] Preferably, the semiconductor refrigeration plate is fixedly mounted on the inner surface of the vertical plate of the cable fault detector box, and the cooling plate is fixedly mounted on the front surface of the semiconductor refrigeration plate.

[0016] Preferably, the cooling fan is fixedly mounted on the front surface of the cooling fin, and the heat dissipation fan is fixedly mounted on the rear surface of the semiconductor refrigeration fin.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a cable fault detection device with the following features:

[0019] Beneficial effects:

[0020] 1. The cable fault detection device can be cooled by a semiconductor refrigeration sheet, and the cold air is transmitted to the interior of the cable fault detector box through the cooling sheet and the cooling fan to cool the interior thereof. The heat of the semiconductor refrigeration sheet itself is conducted out through the cooling fan to prevent the heat of the semiconductor refrigeration sheet from interfering with the interior of the cable fault detector box, thereby maintaining appropriate and stable operation inside the box and ensuring stable operation of the machine.

[0021] 2. The cable fault detection device adjusts the gaps between the baffles through a motor to control the air volume entering the cable fault detector box. In addition, the device can adjust the air volume in a timely manner for heat exchange under different voltage conditions, thereby preventing the power amplifier from overloading and ensuring stable operation of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a cable fault detection device of the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the cable fault detector box of the utility model;

[0024] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.

[0025] In the figure: 1. Cable fault detector housing; 2. Control panel; 3. Air inlet grille; 4. Semiconductor refrigeration plate; 5. Cooling plate; 6. Cooling fan; 7. Cooling fan; 8. Baffle; 9. Fixed rod; 10. Support rod; 11. First fixed rod; 12. Vertical plate; 13. Ring; 14. Second fixed rod; 15. Rotating rod; 16. Motor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-3 The utility model provides a new technical solution: a cable fault detection device, comprising a cable fault detector box 1, a control panel 2 is provided on the upper surface of the cable fault detector box 1, and air inlet grilles 3 are fixedly installed on the inner surfaces of the two vertical plates of the cable fault detector box 1;

[0028] Among them, a cooling mechanism is provided in the cable fault detector box 1, which includes a semiconductor refrigeration plate 4, a cooling plate 5, a cooling fan 6, a heat dissipation fan 7, multiple baffles 8, multiple fixed rods 9, multiple support rods 10, multiple first fixed sticks 11, two vertical plates 12, two rings 13, two second fixed sticks 14, two rotating rods 15 and two motors 16.

[0029] Furthermore, the rear ends of the plurality of fixing rods 9 are respectively rotatably connected to the inner walls of the two air inlet grilles 3, and the front ends of the plurality of fixing rods 9 pass through the front surface of the air inlet grilles 3;

[0030] The plurality of support rods 10 are fixedly sleeved on the outer surfaces of the plurality of fixing rods 9 .

[0031] Furthermore, the plurality of first fixing rods 11 are rotatably sleeved on the inner surfaces of the plurality of support rods 10 , the two vertical plates 12 are rotatably sleeved on the outer surfaces of the plurality of first fixing rods 11 , and the two rings 13 are fixedly mounted on the upper surfaces of the two vertical plates 12 .

[0032] Furthermore, the two second fixed rods 14 are respectively slidably sleeved on the inner surfaces of the two rings 13, and the two rotating rods 15 are respectively fixedly sleeved on the outer surfaces of the two second fixed rods 14;

[0033] The two motors 16 are respectively fixedly mounted on the upper surfaces of the two air inlet grilles 3 , and the output shafts of the two motors 16 are respectively fixedly sleeved on the inner surfaces of the two rotating rods 15 .

[0034] Furthermore, the semiconductor refrigeration plate 4 is fixedly mounted on the inner surface of the vertical plate of the cable fault detector box 1 , and the cooling plate 5 is fixedly mounted on the front surface of the semiconductor refrigeration plate 4 .

[0035] Furthermore, the cooling fan 6 is fixedly mounted on the front surface of the cooling plate 5, and the heat dissipation fan 7 is fixedly mounted on the rear surface of the semiconductor cooling plate 4;

[0036] The cable fault detection device starts the motor 16, which outputs power to the rotating rod 15 fixed on the outer surface of the output shaft through operation, causing it to rotate in a circular motion. At the same time, the rotating rod 15 drives the second fixed rod 14, which is rotatably sleeved on the inner surface, to rotate. The second fixed rod 14 applies an upward pulling force to the ring 13, which is slidably sleeved on the outer surface, causing it to move upward. At the same time, the ring 13 drives the vertical plate 12 fixedly installed on the lower surface to move upward. The vertical plate 12 drives the multiple first fixed rods 11, which are rotatably sleeved on the inner surface, to move upward. The multiple first fixed rods 11 drive the support rod 10, which is rotatably sleeved on the outer surface, to rotate in a circular motion. , the support rod 10 drives the multiple fixed rods 9 fixed on the inner surface to rotate, and the multiple fixed rods 9 drive the multiple baffles 8 fixed on the outer surface to rotate. The gaps between the multiple baffles 8 can be adjusted by rotating, and the air volume passing through the air inlet grille 3 can be adjusted. The semiconductor refrigeration sheet 4 is powered by an external power supply. At this time, the semiconductor refrigeration sheet 4 starts to work for cooling. At this time, the cold air produced by the semiconductor refrigeration sheet 4 is transmitted to the inside of the cable fault detector box 1 through the cooling sheet 5 and the cooling fan 6 for cooling. The heat emitted from the back of the semiconductor refrigeration sheet 4 will be discharged through the heat dissipation fan 7;

[0037] The cable fault detection device can be cooled by the semiconductor refrigeration plate 4, and the cold air is transmitted to the interior of the cable fault detector box through the cooling plate 5 and the cooling fan 6 to cool the interior thereof, and the heat of the semiconductor refrigeration plate 4 itself is discharged through the cooling fan 7 to prevent the heat of the semiconductor refrigeration plate 4 from interfering with the interior of the cable fault detector box, so that the interior maintains appropriate operation stability and the machine operates stably. The cable fault detection device adjusts the gap between each baffle 8 through the motor 16 to control the air volume entering the interior of the cable fault detector box, and then controls the timely adjustment of the air volume for heat exchange processing under the condition of different voltage heating, thereby preventing the power amplifier from overloading and ensuring the stable operation of the machine.

[0038] Working principle: The cable fault detection device starts the motor 16, and the motor 16 outputs power to the rotating rod 15 fixed on the outer surface of the output shaft through operation, so that it rotates in a circular motion. At the same time, the rotating rod 15 drives the second fixed rod 14 with a rotating sleeve on the inner surface to rotate. The second fixed rod 14 applies an upward pulling force to the ring 13 slidingly sleeved on the outer surface, so that it moves upward. At the same time, the ring 13 drives the vertical plate 12 fixedly installed on the lower surface to move upward. The vertical plate 12 drives the multiple first fixed rods 11 rotating on the inner surface to move upward. The multiple first fixed rods 11 drive the support rod 10 rotating on the outer surface to rotate in a circular motion. Rotate, the support rod 10 drives the multiple fixed rods 9 fixed on the inner surface to rotate, and the multiple fixed rods 9 drive the multiple baffles 8 fixed on the outer surface to rotate. The gaps between the multiple baffles 8 can be adjusted by rotation, and the air volume passing through the air inlet grille 3 can be adjusted, and the semiconductor refrigeration plate 4 is powered by an external power supply. At this time, the semiconductor refrigeration plate 4 starts to work for cooling. At this time, the cold air produced by the semiconductor refrigeration plate 4 is transmitted to the inside of the cable fault detector box 1 through the cooling plate 5 and the cooling fan 6 for cooling treatment, and the heat emitted from the back of the semiconductor refrigeration plate 4 will be discharged through the heat dissipation fan 7.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable fault detection device, comprising a cable fault detector housing (1), wherein a control panel (2) is provided on the upper surface of the cable fault detector housing (1), and characterized in that: Air inlet grilles (3) are fixedly mounted on the inner surfaces of the two vertical plates of the cable fault detector box (1); A cooling mechanism is provided in a housing (1) of the cable fault detector, and the cooling mechanism comprises a semiconductor refrigeration plate (4), a cooling plate (5), a cooling fan (6), a heat dissipation fan (7), a plurality of baffles (8), a plurality of fixing rods (9), a plurality of support rods (10), a plurality of first fixing rods (11), two vertical plates (12), two collars (13), two second fixing rods (14), two rotating rods (15) and two motors (16).

2. A cable fault detection device according to claim 1, characterized in that: The rear ends of the plurality of fixing rods (9) are respectively rotatably connected to the inner walls of the two air inlet grilles (3), and the front ends of the plurality of fixing rods (9) penetrate the front surface of the air inlet grilles (3); Wherein, a plurality of support rods (10) are fixedly sleeved on the outer surfaces of a plurality of fixing rods (9).

3. A cable fault detection device according to claim 1, characterized in that: The plurality of first fixing rods (11) are rotatably sleeved on the inner surfaces of the plurality of support rods (10), the two vertical plates (12) are rotatably sleeved on the outer surfaces of the plurality of first fixing rods (11), and the two collars (13) are fixedly mounted on the upper surfaces of the two vertical plates (12).

4. A cable fault detection device according to claim 1, characterized in that: The two second fixed rods (14) are respectively slidably sleeved on the inner surfaces of the two collars (13), and the two rotating rods (15) are respectively fixedly sleeved on the outer surfaces of the two second fixed rods (14); The two motors (16) are respectively fixedly mounted on the upper surfaces of the two air inlet grilles (3), and the output shafts of the two motors (16) are respectively fixedly sleeved on the inner surfaces of the two rotating rods (15).

5. A cable fault detection device according to claim 1, characterized in that: The semiconductor refrigeration plate (4) is fixedly mounted on the inner surface of the vertical plate of the cable fault detector box (1), and the cooling plate (5) is fixedly mounted on the front surface of the semiconductor refrigeration plate (4).

6. A cable fault detection device according to claim 1, characterized in that: The cooling fan (6) is fixedly mounted on the front surface of the cooling plate (5), and the heat dissipation fan (7) is fixedly mounted on the rear surface of the semiconductor cooling plate (4).

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