Safe and efficient busbar withstand voltage automatic detection device

Abstract

The utility model discloses a safe and efficient busbar withstand voltage automatic detection device, which relates to the technical field of busbar withstand voltage detection and comprises a detection rack, a mounting cross beam is arranged at the upper end of the detection rack, a withstand voltage test instrument is mounted on the mounting cross beam, and an anti-static workbench is horizontally fixed in the middle of the detection rack. A supporting table is installed on the anti-static workbench, a clamp used for busbar detection and limiting is fixed to the upper end face of the supporting table, an air cylinder is vertically fixed to the top of the side wall of the installation back plate, a contact electrode making contact with a busbar to be detected on the clamp is fixed to the bottom wall of the pressing block, and the contact electrode is connected with a signal input port of a withstand voltage testing instrument through a wire. According to the utility model, a voltage higher than a normal working voltage is applied to a pin detection point of the busbar for a specified period of time, and the applied voltage only generates a very small leakage current, which proves that the insulating property is better, the requirements of batch automatic production are met, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of busbar withstand voltage detection, in particular to a safe and efficient automatic busbar withstand voltage detection device. Background Art

[0002] Based on the rise of new energy vehicles, the production of electric vehicle motor buses is being vigorously developed. Due to the characteristics of motor buses, the insulation of the products must be fully inspected using voltage-resistant instruments during production. The existing technology uses a bare metal voltage-resistant tester to meet product testing requirements, but it cannot adapt to mass production testing; and the bare metal voltage-resistant tester brings certain safety risks to the operator during testing due to high voltage. Therefore, a safe and efficient bus voltage-resistant automatic detection device is designed and produced here to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a safe and efficient busbar withstand voltage automatic detection device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a safe and efficient busbar withstand voltage automatic detection device, comprising a detection frame, a mounting beam is provided at the upper end of the detection frame, and a withstand voltage test instrument is installed on the mounting beam, an anti-static workbench is horizontally fixed at the middle position in the detection frame, a support table is installed on the anti-static workbench, a clamp for busbar detection limit is fixed on the upper end surface of the support table, a mounting back plate is provided on the upper end surface of the support table, a cylinder is vertically fixed on the top of the side wall of the mounting back plate, a pressure block is fixed on the telescopic end of the cylinder, and a contact electrode of the busbar to be detected on the contact clamp is fixed on the bottom wall of the pressure block, and the contact electrode is connected to the signal input port of the withstand voltage test instrument through a wire.

[0005] In a further embodiment, the signal output terminal of the voltage resistance testing instrument is connected to a computer display screen.

[0006] In a further embodiment, a safety grating is installed on the upper front side of the detection rack, and the safety grating includes a transmitter and a receiver. The transmitter is installed at the left end of the front side of the detection rack, and the receiver is installed on the detection rack. The transmitter and the receiver are arranged opposite to each other on the left and right sides, and the signal output port of the transmitter is connected to the signal input port of the receiver, and the signal output port of the receiver is connected to the signal input port of the voltage withstand test instrument.

[0007] In a further embodiment, the fixture is provided with a plurality of detection placement grooves for introducing the busbars.

[0008] In a further embodiment, the contact electrode is a copper electrode.

[0009] In a further embodiment, insulating feet are provided at the corners of the bottom wall of the support platform.

[0010] In a further embodiment, the cylinder is provided in plurality and distributed along the circumferential side walls of the fixture, a pressure block is provided at the telescopic end of each cylinder and a contact electrode is embedded in the bottom wall of the pressure block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model is a safe and efficient automatic detection device for busbar withstand voltage. The busbar is placed in a fixture with a groove for placing the busbar. The withstand voltage test instrument applies a voltage higher than normal working to the detection point of the busbar pin for a specified period of time. The voltage applied thereto will only generate a very small leakage current, which proves that the insulation is good. Otherwise, it indicates that the insulation is poor. In addition, the withstand voltage test instrument can not only generate high voltage to detect its products, but also directly guide the detection information to a computer to generate records to meet the requirements of mass automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the support platform and the fixture structure of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the busbar of the embodiment of the utility model being arranged on the fixture;

[0016] Figure 4 This is a schematic diagram of the structure of the busbar to be detected according to an embodiment of the utility model;

[0017] Figure 5 It is a top view of the bus structure to be detected according to an embodiment of the utility model.

[0018] In the figure: 1. Testing rack; 2. Withstand voltage test instrument; 3. Computer display screen; 4. Transmitter; 41. Receiver; 5. Support table; 51. Clamp; 52. Mounting back plate; 53. Cylinder; 54. Press block; 6. Power distribution cabinet; 7. Host; 8. Antistatic workbench. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment, this embodiment provides a safe and efficient busbar withstand voltage automatic detection device, including a detection rack 1, a mounting beam is provided at the upper end of the detection rack 1, and a withstand voltage test instrument 2 is installed on the mounting beam, and a host 7 and a power distribution cabinet 6 for distributing power to the host 7 are provided at the bottom of the front side of the detection rack 1, such as Figure 1 As shown, the host 7 has three modules built-in, namely, a program-controlled power supply module, a signal acquisition and conditioning module, and a computer control system, to form a test system, and the test system is connected to the signal input port of the withstand voltage test instrument 2. When the withstand voltage test instrument 2 detects, a voltage higher than the normal working voltage is applied to the insulator of the device under test for a specified period of time. If the voltage applied thereto only generates a small leakage current, the insulation is good, otherwise it means that the insulation is poor.

[0021] An anti-static workbench 8 is fixed horizontally in the middle position of the detection frame 1, and the anti-static workbench 8 can prevent static electricity. A support table 5 is installed on the anti-static workbench 8, and an insulating bottom is provided at the corners of the bottom wall of the support table 5 to prevent current from flowing between the support table 5 and the anti-static workbench 8. A clamp 51 for bus detection limit is fixed on the upper end face of the support table 5, and a mounting back plate 52 is provided on the upper end face of the support table 5. A cylinder 53 is vertically fixed to the top of the side wall of the mounting back plate 52. A pressure block 54 is fixed to the telescopic end of the cylinder 53, and a contact electrode of the bus to be detected on the contact clamp 51 is fixed to the bottom wall of the pressure block 54. Figure 2 As shown, the contact electrode is connected to the signal input port of the withstand voltage test instrument 2 through a wire. Figure 3 As shown, the fixture 51 is provided with a plurality of detection placement grooves for placing the busbars. The busbars to be tested are placed into the fixture 51 with the busbar placement grooves. The busbar structure is as shown in FIG. Figure 4 and Figure 5 As described above, the grooves provided on the fixture 51 correspond to the pin positions of the busbar, ensuring that the busbar does not shake after being inserted.

[0022] Since different buses have different numbers of detection points, some buses have two detection points and some buses have three detection points, multiple cylinders 53 are provided, and multiple cylinders 53 are distributed along the circumferential side walls of the clamp 51. A pressure block 54 is provided at the telescopic end of each cylinder 53, and a contact electrode is embedded in the bottom wall of the pressure block 54. According to the bus with different detection number of detection points, the corresponding number of cylinders 53 is selected to provide downward force for pressing the contact electrode to meet the needs of efficient detection.

[0023] The specific detection process is as follows: the test system controls the telescopic end of the cylinder 53 to stretch, and the pressure block 54 drives the contact electrode to press down and contact the bus pin row detection point. The contact electrode is a copper electrode with extremely strong conductivity to ensure normal detection. The withstand voltage test instrument 2 applies a voltage higher than normal operation to the bus pin detection point for a specified period of time. The voltage applied thereto will only produce a very small leakage current, which proves that the insulation is good. Otherwise, it means that the insulation is poor. The product meets the requirements of mass automated production and improves production efficiency.

[0024] The signal output end of the voltage withstand test instrument 2 is connected to a computer display screen 3. In addition to generating high voltage to detect the bus, the voltage withstand test instrument 2 can also directly import the detection information into the host 7 to generate records, and display the number of qualified products and other related information on the computer display screen 3.

[0025] Furthermore, since the bare metal of the withstand voltage tester is being tested, due to the high voltage, it brings certain safety risks to the operator. For this reason, a safety grating is installed on the upper front side of the detection rack 1. The safety grating includes a transmitter 4 and a receiver 41. The transmitter 4 is installed at the left end of the front side of the detection rack 1, and the receiver 41 is installed on the detection rack 1. The transmitter 4 and the receiver 41 are arranged opposite to each other. The signal output port of the transmitter 4 is connected to the signal input port of the receiver 41, and the signal output port of the receiver 41 is connected to the signal input port of the withstand voltage tester 2. The safety grating consists of a transmitter 4 and a receiver 41, and is an infrared photoelectric sensor. The transmitter 4 emits a specific light beam sequence at a specific frequency, and only when the specific light beam is received, the device will operate normally. That is, when a human body part (such as the hand of a staff member) enters the detection rack 1 above the anti-static workbench 8, the transmitter 4 emits a light beam sequence, and the receiver 41 cannot receive the light beam normally, so the withstand voltage tester 2 cannot perform normal detection operations. The test system controls the withstand voltage tester 2 to stop running, thereby avoiding casualties. The transmitter 4 and the receiver 41 are respectively installed at the two ends of the front side of the detection frame 1, so as to conveniently determine whether a human body or an object enters the dangerous area on the fixture 51 during detection, thereby effectively protecting the safety of personnel.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe and efficient busbar withstand voltage automatic detection device, comprising a detection frame (1), wherein the upper end of the detection frame (1) is provided with a mounting crossbeam, and a withstand voltage test instrument (2) is mounted on the mounting crossbeam, characterized in that: An antistatic workbench (8) is horizontally fixed in the middle position of the detection frame (1), a support platform (5) is installed on the antistatic workbench (8), a fixture (51) for bus detection limit is fixed on the upper end surface of the support platform (5), a mounting back plate (52) is provided on the upper end surface of the support platform (5), a cylinder (53) is vertically fixed on the top of the side wall of the mounting back plate (52), a pressure block (54) is fixed on the telescopic end of the cylinder (53), and a contact electrode of the bus to be detected on the contact fixture (51) is fixed on the bottom wall of the pressure block (54), and the contact electrode is connected to the signal input port of the withstand voltage test instrument (2) through a wire.

2. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: The signal output end of the voltage resistance testing instrument (2) is connected to a computer display screen (3).

3. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: A safety grating is installed on the upper front side of the detection frame (1), and the safety grating includes a transmitter (4) and a receiver (41). The transmitter (4) is installed at the left end of the front side of the detection frame (1), and the receiver (41) is installed on the detection frame (1). The transmitter (4) and the receiver (41) are arranged opposite to each other on the left and right sides. The signal output port of the transmitter (4) is connected to the signal input port of the receiver (41), and the signal output port of the receiver (41) is connected to the signal input port of the withstand voltage test instrument (2).

4. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: The clamp (51) is provided with a plurality of detection placement grooves for placing the busbar introduction.

5. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: The contact electrode is a copper electrode.

6. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: Insulating feet are provided at the corners of the bottom wall of the support platform (5).

7. The safe and efficient busbar withstand voltage automatic detection device according to claim 1 is characterized in that: A plurality of cylinders (53) are provided, and the plurality of cylinders (53) are distributed along the circumferential side walls of the clamp (51); a pressing block (54) is provided at the telescopic end of each cylinder (53), and a contact electrode is embedded in the bottom wall of the pressing block (54).

Images