Cable heat dissipation performance testing device

Abstract

A cable heat dissipation performance testing device of the utility model comprises a base, vertical mounting seats, three-jaw chucks, an infrared thermometer and an isolation cover, the two vertical mounting seats are symmetrically arranged at the two ends of the upper surface of the base, the three-jaw chucks are arranged in the middles of the opposite sides of the two vertical mounting seats, the conductor columns are arranged on the opposite sides of the two vertical mounting seats, and the infrared thermometer is arranged on the conductor columns. A row of supporting seats are arranged on the base and located between the two vertical installation seats, the supporting seats are used for supporting and fixing a cable to be measured, a plurality of infrared thermometers and heat conduction heads are arranged on the base and located between the two vertical installation seats, the vertical installation seats, the infrared thermometers and the heat conduction heads are all detachably installed on the base, and an isolation cover is arranged on the upper surface of the base. The base, the vertical installation seat, the three-jaw chuck, the supporting seat, the infrared thermometer and the heat conduction head are all located in the space between the isolation cover and the base, a through hole is formed in the isolation cover, the heat dissipation performance of a cable in the bending process can be tested, and overall use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a device for testing the heat dissipation performance of cables. Background Art

[0002] The cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. A qualified cable needs to undergo performance tests such as resistance testing and heat dissipation testing. The heat dissipation performance of the cable is a very important performance indicator of the cable, which involves the safety of the cable in daily use. Unqualified heat dissipation performance of the cable will lead to excessive cable temperature, insulation breakdown, and even explosion and fire. The cable is often bent during installation and transportation. It is also important to test the heat dissipation performance of the cable bending point. It is necessary to design a test device that is simple to use and can detect the heat dissipation performance of the cable bending. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a cable heat dissipation performance testing device in view of the above shortcomings.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A cable heat dissipation performance testing device comprises a base, a vertical mounting seat, a three-jaw chuck, an infrared thermometer and an isolation cover, two vertical mounting seats for mounting the three-jaw chucks are symmetrically arranged at both ends of the upper surface of the base, the three-jaw chucks for clamping the cable to be tested are arranged in the middle of the opposite sides of the two vertical mounting seats, and the conductor columns for connecting the cable to be tested to an external power supply are arranged on the opposite sides of the two vertical mounting seats, a row of support seats are arranged on the base between the two vertical mounting seats, and the support seats are used to support and fix the cable to be tested, a plurality of infrared thermometers and thermal conductive heads are arranged on the base between the two vertical mounting seats, and the thermal conductive heads are connected to the external thermal conductive meter through wires, and the vertical mounting seat, the infrared thermometer and the thermal conductive head can be detachably mounted on the base, and an isolation cover is arranged on the upper surface of the base, and the base, the vertical mounting seat, the three-jaw chuck, the support seat, the infrared thermometer and the thermal conductive head are all located in the space between the isolation cover and the base, and the isolation cover is provided with a through hole for passing the wires.

[0006] Furthermore, a through hole is opened at the center of the three-jaw chuck, the three-jaw chuck is made of insulating material, and the support seats are located on the line connecting the centers of the two three-jaw chucks.

[0007] Furthermore, the conductor column passes through the vertical mounting seat and extends to the inside of the through hole, the cylindrical side wall of the conductor column is coated with an insulating layer, and the rear end of the conductor column is electrically connected to an external power supply through a conductive column.

[0008] Furthermore, the vertical mounting seat can move on the base.

[0009] Furthermore, a plurality of fixing brackets are arranged on the base between the two vertical mounting seats, and the thermal conductive head and the infrared thermometer are respectively installed on the corresponding fixing brackets.

[0010] Furthermore, a plurality of positioning holes are arranged in an array on the base, and a plurality of positioning columns matching the positioning holes are installed at the bottom of the vertical mounting seat, the support seat and the fixed bracket, and the vertical mounting seat, the support seat and the fixed bracket are fixedly connected to the base through the positioning columns and the positioning holes.

[0011] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0012] The utility model provides a three-jaw chuck and a conductor column, and the cable to be tested is fixedly connected to the conductor column by the three-jaw chuck, and the conductor column is connected to an external power supply, so that the heat dissipation performance of the cable can be tested. In combination with a vertical mounting seat and a support seat, when the cable is bent, the bending angle of the cable is adjusted by moving the vertical mounting seat and the support seat, and then an infrared thermometer and a thermal head are installed in different sections of the cable to test the heat dissipation performance of the cable when bent. By adjusting the positional relationship of multiple support seats, the heat dissipation performance of the cable in an extreme bending state can also be detected, and the overall use is convenient.

[0013] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the utility model; (isolation cover omitted)

[0015] Figure 2 This is a cross-sectional view of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the appearance of the isolation cover on the cover of the utility model;

[0017] Figure 4 It is a schematic diagram of the connection between the vertical mounting base, the support base and the fixing bracket and the positioning column.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Base; 101. Positioning hole; 2. Vertical mounting seat; 3. Three-jaw chuck; 4. Conductor column; 5. Support seat; 6. Infrared thermometer; 7. Thermal head; 8. Isolation cover; 9. Insulation layer; 10. Conductive column; 11. Fixed bracket; 12. Positioning column. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] like Figure 1-4 As shown, a cable heat dissipation performance test device includes a base 1, a vertical mounting seat 2, a three-jaw chuck 3, an infrared thermometer 6 and an isolation cover 8, two vertical mounting seats 2 for mounting the three-jaw chuck 3 are symmetrically arranged at both ends of the upper surface of the base 1, and the middle of the opposite side of the two vertical mounting seats 2 is provided with a three-jaw chuck 3 for clamping the cable to be tested, and the opposite side of the two vertical mounting seats 2 is provided with a conductor column 4 for connecting the cable to be tested to an external power supply, and a row of support seats 5 is arranged on the base 1 between the two vertical mounting seats 2, and the support seats 5 is used to support and fix the cable to be tested. A plurality of infrared thermometers 6 and thermal heads 7 are arranged on the base 1 between the two vertical mounting seats 2. The thermal heads 7 are connected to external thermal conductors through wires. The vertical mounting seats 2, the infrared thermometers 6 and the thermal heads 7 can be detachably mounted on the base 1. An isolation cover 8 is arranged on the upper surface of the base 1. The base 1, the vertical mounting seats 2, the three-jaw chuck 3, the support seat 5, the infrared thermometers 6 and the thermal heads 7 are all located in the space between the isolation cover 8 and the base 1. A through hole for passing the wires is opened on the isolation cover 8.

[0023] As an implementation manner, a through hole is opened at the center of the three-jaw chuck 3 , the three-jaw chuck 3 is made of insulating material, and the support seat 5 is located on the line connecting the centers of the two three-jaw chucks 3 .

[0024] As an implementation mode, the conductor column 4 passes through the vertical mounting seat 2 and extends to the inside of the through hole. The cylindrical side wall of the conductor column 4 is covered with an insulating layer 9 . The rear end of the conductor column 4 is electrically connected to an external power source through a conductive column 10 .

[0025] As an implementation mode, the vertical mounting seat 2 can move on the base 1 .

[0026] As an implementation manner, a plurality of fixing brackets 11 are disposed on the base 1 between the two vertical mounting seats 2 , and the thermal head 7 and the infrared thermometer 6 are respectively mounted on corresponding fixing brackets 11 .

[0027] As an embodiment, a plurality of positioning holes 101 are arranged in an array on the base 1, and a plurality of positioning columns 12 adapted to the positioning holes 101 are installed at the bottom of the vertical mounting seat 2, the support seat 5 and the fixed bracket 11, and the vertical mounting seat 2, the support seat 5 and the fixed bracket 11 are fixedly connected to the base 1 via the positioning columns 12 and the positioning holes 101.

[0028] In the utility model, the infrared thermometer 6 and the thermal conductivity meter are electrically connected to the external computer terminal. The data detected by the infrared thermometer 6 and the thermal conductivity meter are analyzed by the external computer terminal to determine whether the heat dissipation performance of the cable is qualified. The model of the infrared thermometer 6 is the Mik-AS-10 industrial online short-wave infrared thermometer, and the model of the thermal conductivity meter is the Nanjing Dazhan DZDR-S thermal conductivity coefficient tester.

[0029] The working process of the utility model is as follows: firstly, the two ends of the cable to be tested are respectively inserted into the two three-jaw chucks 3 and are tightly attached to the conductor column 4, the cable is fixed by the three-jaw chuck 3, and then a plurality of support seats 5 are placed under the cable to support the cable, and then the infrared thermometer 6 and the thermal head 7 are respectively placed at different positions on the front and back sides of the cable, and the isolation cover 8 is covered. After power is turned on, the data transmitted to the thermal conductivity meter by the infrared thermometer 6 and the thermal head 7 are analyzed on the external computer terminal, and the heat dissipation performance test of the cable bending state is continued after the data are qualified. Firstly, the plurality of support seats 5 and the fixed support seats 5 are placed under the cable to support the cable. The bracket 11 is placed and fixed by the positioning column 12 and the positioning hole 101, and then the installation position of the two vertical mounting seats 2 is adjusted so that the cable can be placed along the multiple support seats 5 in a bent manner, and the positioning column 12 at the bottom of the vertical mounting seat 2 is placed in the positioning hole 101 and fixed, and then the infrared thermometer 6 and the thermal head 7 are respectively installed on the fixed bracket 11 at different positions on the front and rear sides of the cable, and covered with an isolation cover 8. After power is turned on, the data transmitted to the thermal meter by the infrared thermometer 6 and the thermal head 7 are analyzed on the external computer terminal to determine whether the heat dissipation of the cable when bent is qualified.

[0030] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A cable heat dissipation performance testing device, characterized in that: The invention comprises a base (1), a vertical mounting seat (2), a three-jaw chuck (3), an infrared thermometer (6) and an isolation cover (8); two vertical mounting seats (2) for mounting the three-jaw chuck (3) are symmetrically arranged at both ends of the upper surface of the base (1); the three-jaw chuck (3) for clamping the cable to be tested is arranged in the middle of the opposite side of the two vertical mounting seats (2); the opposite side of the two vertical mounting seats (2) is arranged with a conductor column (4) for connecting the cable to be tested to an external power supply; a row of support seats (5) is arranged on the base (1) between the two vertical mounting seats (2); the support seats (5) are used to support and fix the cable to be tested. A plurality of infrared thermometers (6) and thermal heads (7) are arranged on the base (1) between the two vertical mounting seats (2); the thermal heads (7) are connected to external thermal meters via wires; the vertical mounting seats (2), the infrared thermometers (6) and the thermal heads (7) are all detachably mounted on the base (1); an isolation cover (8) is arranged on the upper surface of the base (1); the base (1), the vertical mounting seat (2), the three-jaw chuck (3), the support seat (5), the infrared thermometers (6) and the thermal heads (7) are all located in the space between the isolation cover (8) and the base (1); and a through hole for passing the wires is provided on the isolation cover (8).

2. A cable heat dissipation performance testing device according to claim 1, characterized in that: A through hole is provided at the center of the three-jaw chuck (3); the three-jaw chuck (3) is made of insulating material; and the support seats (5) are located on a line connecting the centers of the two three-jaw chucks (3).

3. A cable heat dissipation performance testing device according to claim 1, characterized in that: The conductor column (4) passes through the vertical mounting seat (2) and extends to the inside of the through hole; the cylindrical side wall of the conductor column (4) is coated with an insulating layer (9); and the rear end of the conductor column (4) is electrically connected to an external power source via a conductive column (10).

4. A cable heat dissipation performance testing device according to claim 1, characterized in that: The vertical mounting seat (2) is movable on the base (1).

5. A cable heat dissipation performance testing device according to claim 1, characterized in that: A plurality of fixed brackets (11) are arranged on the base (1) between the two vertical mounting seats (2), and the thermal head (7) and the infrared thermometer (6) are respectively mounted on corresponding fixed brackets (11).

6. A cable heat dissipation performance testing device according to claim 5, characterized in that: The base (1) is provided with a plurality of positioning holes (101) in an array, and the bottoms of the vertical mounting seat (2), the support seat (5) and the fixed bracket (11) are all provided with a plurality of positioning columns (12) adapted to the positioning holes (101), and the vertical mounting seat (2), the support seat (5) and the fixed bracket (11) are all fixedly connected to the base (1) via the positioning columns (12) and the positioning holes (101).

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