High-voltage tester

Abstract

The utility model relates to the technical field of high-voltage testers, and discloses a high-voltage tester which comprises a machine body, two test lines are installed on the periphery of the machine body, a protective shell is installed on the periphery of the machine body, a cooling assembly is arranged in the protective shell, and the cooling assembly is used for cooling the interior of the protective shell. Two winding assemblies are arranged in the protective shell, and the winding assemblies are used for winding the test wire; the two winding assemblies each comprise a winding roller, the winding rollers are arranged in the protection shell, the peripheries of the winding rollers are sleeved with the test wires, and fixing shafts are installed on the right sides of the winding rollers. According to the tester, the test wire can be prevented from being damaged by being recycled into the protective shell, so that the service life of the test wire is prolonged, and the cooling assembly can cool the machine body in the protective shell, so that the testing accuracy of the tester is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage testers, in particular to a high-voltage tester. Background Art

[0002] With the improvement of people's living standards and economic development, cars have become an indispensable means of transportation in people's daily lives, and the global car ownership continues to rise. This has led to a significant increase in the use of automotive batteries, and the safety and reliability requirements for automotive batteries are becoming increasingly higher. Therefore, during the automotive battery production process, it is necessary to use a tester to measure the insulation resistance of the automotive battery casing.

[0003] Digital insulation resistance testers are commonly used. Based on microprocessor technology, they use high-precision analog-to-digital conversion circuits to convert the measured weak current signal into a digital signal. An internal algorithm then calculates the insulation resistance value based on the applied DC voltage. When measuring the insulation resistance of a car battery case, they also apply a DC voltage between the battery case and the internal battery cells and measure the leakage current.

[0004] Existing digital insulation resistance testers perform tests by connecting test wires to the vehicle battery housing. However, due to the lack of a structure to organize the test wires, the test wires will be scattered around the tester or in the tool kit after use, causing the test wires to be easily worn. Therefore, a high-voltage tester is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high voltage tester, which aims to improve the problem in the prior art that the test line is easily subject to wear after testing.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A high-voltage tester comprises a body, two test wires are mounted on the outer periphery of the body, a protective shell is mounted on the outer periphery of the body, a cooling assembly is disposed inside the protective shell, the cooling assembly is used to cool the interior of the protective shell, and two winding assemblies are disposed inside the protective shell, the winding assemblies are used to wind the test wires;

[0008] The two winding assemblies each include a winding roller, the winding roller is arranged inside the protective shell, the test line is sleeved on the outer circumference of the winding roller, and a fixed shaft is installed on the right side of the winding roller;

[0009] As a further description of the above technical solution:

[0010] The left side of the winding roller is fixedly connected to a rotating shaft, the outer periphery of the rotating shaft is installed with a second spring, and one end of the second spring is installed inside the protective shell;

[0011] As a further description of the above technical solution:

[0012] Two support shafts are installed inside the protective shell, and the support shafts pass through the winding roller and the rotating shaft. The right end of the support shaft is fixedly connected to a baffle, and the baffle is arranged on the right side of the winding roller;

[0013] As a further description of the above technical solution:

[0014] The cooling component includes a fan, which is installed inside the protective shell. A dust shield is installed inside the protective shell, and the dust shield is arranged on the left side of the fan;

[0015] As a further description of the above technical solution:

[0016] The upper and lower sides of the dust shield are fixedly connected to mounting blocks, and two clamping blocks are slidably connected inside the mounting blocks, and the right side of the clamping blocks is arranged inside the protective shell;

[0017] As a further description of the above technical solution:

[0018] A spring 1 is installed on one side of the clamping block, and one end of the spring 1 is installed inside the mounting block;

[0019] As a further description of the above technical solution:

[0020] A sealing plate is installed on one side of the clamping block, and the sealing plate is slidably connected to the inside of the mounting block;

[0021] As a further description of the above technical solution:

[0022] A plurality of evenly distributed exhaust holes are provided inside the protective shell.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the present invention, two winding structures are provided inside the protective shell to wind up the test wires so that the two test wires can be retracted into the protective shell after the test is completed, thereby preventing the test wires from being damaged and extending the service life of the test wires.

[0025] 2. In the present invention, a cooling component is provided inside the protective shell to cool the body inside the protective shell, preventing the internal temperature of the protective shell from being too high and affecting the internal parts of the body, thereby improving the accuracy of the test of the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a three-dimensional schematic diagram of a high-voltage tester proposed by the utility model;

[0027] Figure 2 This is a structural diagram of a high-voltage tester body proposed by the utility model;

[0028] Figure 3 This is a structural schematic diagram of a winding roller of a high-voltage tester proposed in the utility model;

[0029] Figure 4 This is a structural schematic diagram of a fan of a high-voltage tester proposed by the present invention;

[0030] Figure 5 This is a structural schematic diagram of a mounting block for a high-voltage tester proposed by the utility model.

[0031] Legend:

[0032] 1. Body; 2. Baffle; 3. Test line; 4. Protective shell; 5. Support shaft; 6. Cooling assembly; 601. Dust shield; 602. Fan; 603. Exhaust hole; 604. Block; 605. Spring 1; 606. Mounting block; 7. Sealing plate; 8. Winding assembly; 801. Winding roller; 802. Fixed shaft; 803. Rotating shaft; 804. Spring 2. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figure 1-Figure 3A high-voltage tester includes a body 1. The body 1 is the main structure of the tester and can detect the insulation resistance of the car battery shell. Two test wires 3 are installed on the periphery of the body 1. The test wires 3 are used to connect the tester and the car battery shell. A fixing clip is installed at one end of the test wire 3 to connect one end of the test wire 3 to the car battery shell. A protective shell 4 is installed on the periphery of the body 1. The body 1 is installed inside the protective shell 4 so that the protective shell 4 can protect the body 1. Two winding components 8 are provided inside the protective shell 4. The winding component 8 is used to wind up the test wire 3; the two winding components 8 each include a winding roller 801, the winding roller 801 is arranged inside the protective shell 4, the test wire 3 is sleeved on the periphery of the winding roller 801, and the winding roller 801 rotates to The test line 3 is wound into the inside of the protective shell 4, and a fixed shaft 802 is installed on the right side of the winding roller 801. Pushing the fixed shaft 802 to rotate can drive the winding roller 801 to rotate. The left side of the winding roller 801 is fixedly connected to the rotating shaft 803, and a spring 2 804 is installed on the periphery of the rotating shaft 803. One end of the spring 2 804 is installed inside the protective shell 4. The spring 2 804 can drive the rotating shaft 803 to rotate and drive the winding roller 801 to rotate and reset through the rotating shaft 803. Two support shafts 5 are installed inside the protective shell 4. The support shaft 5 passes through the winding roller 801 and the rotating shaft 803. The support shaft 5 is used to support the winding roller 801 and the rotating shaft 803 to rotate. The right end of the support shaft 5 is fixedly connected to a baffle 2. The baffle 2 is set on the right side of the winding roller 801. Installing the baffle 2 can limit the movement of the winding roller 801.

[0035] Reference Figure 4 、 Figure 5 , a cooling component 6 is provided inside the protective shell 4, and the cooling component 6 is used to cool the inside of the protective shell 4. The cooling component 6 includes a fan 602, which is installed inside the protective shell 4. The rotation of the fan 602 can drive the low-temperature airflow outside the protective shell 4 to enter the inside of the protective shell 4. A plurality of evenly distributed exhaust holes 603 are opened inside the protective shell 4. The temperature airflow absorbs the high temperature inside the protective shell 4 and can be discharged through the exhaust holes 603. A dust shield 601 is installed inside the protective shell 4. The dust shield 601 is set on the left side of the fan 602. The dust shield 601 can prevent dust and impurities from entering the inside of the protective shell 4 with the airflow. The upper and lower sides of the dust shield 601 are fixed A mounting block 606 is fixedly connected, and the mounting block 606 is used to install the card block 604. Two card blocks 604 are slidably connected inside the mounting block 606. The right side of the card block 604 is set inside the protective shell 4. The card block 604 can connect the dust baffle 601 and the protective shell 4 to each other. A spring 1 605 is installed on one side of the card block 604, and one end of the spring 1 605 is installed inside the mounting block 606. The spring 1 605 is used to push the card block 604 to move. A sealing plate 7 is installed on one side of the card block 604, and the sealing plate 7 is slidably connected to the inside of the mounting block 606. The sealing plate 7 is used to seal the mounting block 606 to prevent impurities from entering the interior of the mounting block 606 and blocking the card block 604 from moving.

[0036] Working Principle: When using the tester, the two fixed shafts 802 are rotated, thereby driving the two take-up rollers 801 to rotate. During the rotation of the two take-up rollers 801, the two test leads 3 are unwound. After unwinding, the two test leads 3 are connected to the battery housing and battery electrodes via fixed clips attached to one end of the two test leads 3. After this, the body 1 can be used to perform insulation resistance testing on the vehicle battery housing. During the rotation of the take-up rollers 801, the shaft 803 drives the second spring 804 to rotate and tighten. After the test is completed, the test leads 3 are separated from the battery housing and battery electrodes, and the second spring 804 rotates and relaxes. The second spring 804, via the shaft 803, drives the take-up rollers 801 to rotate, thereby rewinding the test leads 3.

[0037] During use, the tester can activate the fan 602. The rotation of the fan 602 drives air into the protective shell 4. The airflow carries the high temperature inside the protective shell 4 and is discharged through the exhaust holes 603, thereby cooling the interior of the protective shell 4. When the airflow enters the protective shell 4, the dust shield 601 prevents dust from entering the protective shell 4 with the airflow. Dust adheres to the surface of the dust shield 601. When the dust shield 601 needs to be cleaned, the two adjacent blocks 604 are pressed toward each other. When the rear of the blocks 604 are no longer inserted into the protective shell 4, the dust shield 601 can be removed from the protective shell 4 for cleaning.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high voltage tester, comprising a body (1), wherein the body (1) is provided with two test lines (3), characterized in that: A protective shell (4) is installed on the outer periphery of the body (1); a cooling component (6) for cooling the interior of the protective shell (4) is provided inside the protective shell (4); and two winding components (8) for winding the test line (3) are provided inside the protective shell (4); The two winding assemblies (8) each include a winding roller (801), the winding roller (801) is arranged inside the protective shell (4), the test line (3) is sleeved on the outer circumference of the winding roller (801), and a fixed shaft (802) is installed on the right side of the winding roller (801).

2. A high voltage tester according to claim 1, characterized in that: The left side of the winding roller (801) is fixedly connected to a rotating shaft (803), and a second spring (804) is installed on the outer periphery of the rotating shaft (803), and one end of the second spring (804) is installed inside the protective shell (4).

3. A high voltage tester according to claim 2, characterized in that: Two support shafts (5) are installed inside the protective shell (4), and the support shafts (5) pass through the winding roller (801) and the rotating shaft (803). The right end of the support shaft (5) is fixedly connected to a baffle (2), and the baffle (2) is arranged on the right side of the winding roller (801).

4. A high voltage tester according to claim 1, characterized in that: The cooling component (6) comprises a fan (602), the fan (602) is installed inside the protective shell (4), a dust shield (601) is installed inside the protective shell (4), and the dust shield (601) is arranged on the left side of the fan (602).

5. A high voltage tester according to claim 4, characterized in that: The upper and lower sides of the dust shield (601) are fixedly connected with mounting blocks (606), the interior of the mounting block (606) is slidably connected with two clamping blocks (604), and the right side of the clamping block (604) is arranged inside the protective shell (4).

6. A high voltage tester according to claim 5, characterized in that: A spring 1 (605) is installed on one side of the clamping block (604), and one end of the spring 1 (605) is installed inside the mounting block (606).

7. The high voltage tester according to claim 5, characterized in that: A sealing plate (7) is installed on one side of the clamping block (604), and the sealing plate (7) is slidably connected to the inside of the mounting block (606).

8. The high voltage tester according to claim 2, characterized in that: A plurality of evenly distributed exhaust holes (603) are provided inside the protective shell (4).

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