High-voltage conduction test equipment

Abstract

The utility model discloses a high-voltage conduction test device, relates to the technical field of test, and aims to solve the problem that a conventional test device in the prior art can only conduct a conduction test after wire harness production and cannot conduct the conduction test in the use process of a wire harness. A signal conversion device is fixedly arranged on one side of the middle of the interior of the handheld conduction testing device, a processing device is fixedly arranged at the lower end of the interior of the handheld conduction testing device, a circular opening is formed in the middle of the upper end face of the handheld conduction testing device, and a fixing pipe is fixedly connected to the upper end of the circular opening; a telescopic pipe is movably connected into the fixing pipe, the upper end of the telescopic pipe extends out of the upper end of the fixing pipe and is fixedly connected with an electromagnetic induction probe, and the electromagnetic induction probe and the signal conversion device are connected in the mode that a signal line penetrates through the circular opening along the interior of the telescopic pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, and specifically relates to a high-voltage conduction testing device. Background Art

[0002] Conduction testing is a method for testing wire harnesses, aiming to ensure that the connections between wires or conductors in the wire harness are correct. This testing method is carried out by using a conduction tester or a multimeter. By passing an electric current through the wires or conductors of the wire harness and detecting whether there is current flow, the conduction situation can be judged. Conduction testing can detect whether the wires or conductors in the wire harness are correctly connected, and can also detect whether there are short circuits, open circuits or other faults, thereby improving the quality and reliability of the wire harness and ensuring that the wire harness meets the requirements before use.

[0003] For example, the application publication number is CN 115453414 A, a testing device for testing the conduction of a cable. Aiming at the problems of the existing device with unadjustable orientation and too small clearance at the bottom, the following scheme is proposed. It includes a conduction tester and a copper ball bolted to the right side of the conduction tester. A warning light is bolted to the top of the conduction tester. The bottom of the conduction tester is slidably connected to a bottom box. A driving wheel is rotatably connected inside the bottom box. The rotating rod can drive the conduction tester to rotate, thereby changing the orientation of the conduction tester. When moving the work station, there is no need to disassemble the device. Just rotate the conduction tester to make the conduction tester face the adjusted work station. The rotating rod can drive the connecting seat to move up and down through a transmission mechanism. The connecting seat can drive the articulated rod to move up and down through a transmission rod. The articulated rod can change the height of the bottom of the bottom box through a fixing frame, which is convenient for cleaning the inside of the bottom box after adjusting the height.

[0004] The existing testing devices can only conduct conduction testing after the wire harness is produced, and the wire harness cannot be tested for conduction during use. Therefore, there is an urgent need in the market to develop a high-voltage conduction testing device to help people solve the existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-voltage conduction testing device to solve the problem that the existing testing devices can only conduct conduction testing after the wire harness is produced, and the wire harness cannot be tested for conduction during use as mentioned in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A high-voltage conduction test device, including a handheld conduction test device, in which a signal conversion device is fixedly arranged on one side of the middle part inside the handheld conduction test device, a processing device is fixedly arranged at the lower end inside the handheld conduction test device, a circular opening is arranged in the middle of the upper end surface of the handheld conduction test device, a fixed pipe is fixedly connected to the upper end of the circular opening, a telescopic pipe is movably connected inside the fixed pipe, the upper end of the telescopic pipe extends out of the upper end of the fixed pipe and is fixedly connected with an electromagnetic induction probe, and the electromagnetic induction probe is connected to the signal conversion device through a signal line passing through the circular opening along the inside of the telescopic pipe.

[0007] Preferably, a power supply battery is fixedly arranged on the other side of the middle part inside the handheld conduction test device, and a display is fixedly arranged on the front end surface of the handheld conduction test device.

[0008] Preferably, the signal conversion device and the processing device, and the display and the processing device are all connected by data lines, and the power supply battery and the processing device are connected by a power supply line.

[0009] Preferably, wing plates are fixedly connected to both sides of the upper end of the telescopic pipe, and guide pipes are fixedly connected to the lower ends of the two wing plates.

[0010] Preferably, a limiting ring is fixedly connected to the upper end of the fixed pipe, a connecting ring is sleeved and connected to the lower end of the outer side end surface of the fixed pipe, support rings are fixedly connected to both sides of the connecting ring, and the lower ends of the two guide pipes are respectively fixedly connected to the two support rings on the connecting ring.

[0011] Preferably, guide rods are fixedly connected to both sides of the upper end surface of the handheld conduction test device.

[0012] Preferably, the upper ends of the two guide rods respectively pass through the middle parts of the two support rings and extend into the two guide pipes.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. In this utility model, through the setting of the handheld conduction test device, a person holds the handheld conduction test device close to the high-voltage wire harness in use, and the electromagnetic induction probe approaches the high-voltage wire harness. The electromagnetic induction probe includes an excitation coil and a detection coil. The excitation coil is energized with high-frequency alternating current to generate an alternating magnetic field. When the high-voltage circuit is in this magnetic field, an induced current will be generated around it, and then an induced electromotive force will be generated in the detection coil. The detection coil is used to capture this weak induced signal, and transmits the induced signal to the signal conversion device through a signal line. The signal conversion device amplifies, filters, and digitizes the detected weak induced signal, and continues to transmit it to the processing device. The processing device receives the digital signal from the signal conversion device, analyzes and compares the digital signal, and judges whether the high-voltage circuit is conducting according to the characteristic parameters such as the intensity and frequency of the induced signal, outputs the test result, and transmits it to the display for display.

[0015] 2. In this utility model, through the setting of the telescopic tube, the telescopic tube is movably connected inside the fixed tube. The upper end of the telescopic tube extends out of the upper end of the fixed tube and is fixedly connected with the electromagnetic induction probe. When a person cannot approach the wire harness in use, by pulling the wing plate, the wing plate drives the telescopic tube to extend out of the fixed tube, and at the same time the signal line can be elongated, so as to realize extending the electromagnetic induction probe, which is convenient for conducting a conduction test when a person cannot approach the wire harness in use.

[0016] 3. In this utility model, through the setting of the guide rod, the upper ends of the two guide rods respectively pass through the middle parts of the two support rings and extend into the two guide tubes. When the telescopic tube moves, the guide tube slides on the guide rod. The guide rod stably guides the expansion and contraction of the guide tube to ensure the stability of the movement of the telescopic tube. At the same time, the movement of the connecting ring is restricted by the limit ring to prevent it from slipping out of the fixed tube. Description of the Drawings

[0017] Figure 1 is the front view of a high-voltage conduction test device of the present utility model;

[0018] Figure 2 is the main sectional view of the present utility model;

[0019] Figure 3 is the enlarged detail view A of the present utility model;

[0020] Figure 4 is the enlarged detail view B of the present utility model.

[0021] In the figure: 1. Handheld conduction test device; 101. Signal conversion device; 102. Processing device; 103. Power supply battery; 104. Display; 105. Circular opening; 106. Guide rod; 2. Fixed tube; 201. Limit ring; 3. Telescopic tube; 301. Electromagnetic induction probe; 302. Signal line; 303. Wing plate; 304. Guide tube; 4. Connecting ring; 401. Support ring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: A high-voltage conduction test device includes a handheld conduction test device 1. A signal conversion device 101 is fixedly arranged on one side of the middle part inside the handheld conduction test device 1. A processing device 102 is fixedly arranged at the lower end inside the handheld conduction test device 1. A circular opening 105 is arranged in the middle of the upper end surface of the handheld conduction test device 1. A fixed tube 2 is fixedly connected to the upper end of the circular opening 105. A telescopic tube 3 is movably connected inside the fixed tube 2. The upper end of the telescopic tube 3 extends out of the upper end of the fixed tube 2 and is fixedly connected to an electromagnetic induction probe 301. The electromagnetic induction probe 301 is connected to the signal conversion device 101 through a signal line 302 passing through the circular opening 105 along the inside of the telescopic tube 3.

[0024] Furthermore, a power supply battery 103 is fixedly arranged on the other side of the middle part inside the handheld conduction test device 1, and a display 104 is fixedly arranged on the front end surface of the handheld conduction test device 1.

[0025] Further, data lines are used to connect between the signal conversion device 101 and the processing device 102, and between the display 104 and the processing device 102. A power supply line is used to connect between the power supply battery 103 and the processing device 102. By a person holding the handheld conduction testing device 1 close to the high-voltage harness in use, and the electromagnetic induction probe 301 approaching the high-voltage harness. The electromagnetic induction probe 301 includes an excitation coil and a detection coil. The excitation coil is passed through by high-frequency alternating current to generate an alternating magnetic field. When the high-voltage circuit is in this magnetic field, an induced current will be generated around it, and then an induced electromotive force will be generated in the detection coil. The detection coil is used to capture this weak induced signal, and transmits the induced signal to the signal conversion device 101 through the signal line 302. The signal conversion device 101 amplifies, filters and digitizes the detected weak induced signal, and continues to transmit it to the processing device 102. The processing device 102 receives the digital signal from the signal conversion device 101, analyzes and compares the digital signal, judges whether the high-voltage circuit is conducting according to characteristic parameters such as the intensity and frequency of the induced signal, outputs the test result, and transmits it to the display 104 for display.

[0026] Further, wing plates 303 are fixedly connected to both sides of the upper end of the telescopic tube 3, and guide tubes 304 are fixedly connected to the lower ends of the two wing plates 303.

[0027] Further, a limiting ring 201 is fixedly connected to the upper end of the fixed tube 2. A connecting ring 4 is sleeved and connected to the lower end of the outer side end face of the fixed tube 2. Support rings 401 are fixedly connected to both sides of the connecting ring 4. The lower ends of the two guide tubes 304 are respectively fixedly connected to the two support rings 401 on the connecting ring 4. The two guide tubes 304 are connected into a whole through the connecting ring 4. When a person cannot approach the harness in use, by pulling the wing plate 303, the wing plate 303 drives the telescopic tube 3 to extend out from the inside of the fixed tube 2, and at the same time the signal line 302 can be elongated, so as to realize extending out the electromagnetic induction probe 301, which is convenient for conducting a conduction test when a person cannot approach the harness in use.

[0028] Further, guide rods 106 are fixedly connected to both sides of the upper end face of the handheld conduction testing device 1.

[0029] Further, the upper ends of the two guide rods 106 respectively pass through the middle parts of the two support rings 401 and extend into the two guide tubes 304. When the telescopic tube 3 moves, the guide tube 304 slides on the guide rod 106. The telescopic of the guide tube 304 is stably guided by the guide rod 106 to ensure the stability of the movement of the telescopic tube 3. At the same time, the movement of the connecting ring 4 is restricted by the limiting ring 201 to prevent it from slipping out of the inside of the fixed tube 2.

[0030] Working principle: When in use, the operator holds the handheld conduction test device 1 close to the high-voltage wire harness in use, and the electromagnetic induction probe 301 approaches the high-voltage wire harness. The electromagnetic induction probe 301 includes an excitation coil and a detection coil. The excitation coil is supplied with high-frequency alternating current to generate an alternating magnetic field. When the high-voltage circuit is in this magnetic field, an induced current will be generated around it, and then an induced electromotive force will be generated in the detection coil. The detection coil is used to capture this weak induced signal, and the induced signal is transmitted to the signal conversion device 101 through the signal line 302. The signal conversion device 101 amplifies, filters, and digitizes the detected weak induced signal, and continues to transmit it to the processing device 102. The processing device 102 receives the digital signal from the signal conversion device 101, analyzes and compares the digital signal, and determines whether the high-voltage circuit is conducting according to the characteristic parameters such as the intensity and frequency of the induced signal, and outputs the test result, which is transmitted to the display 104 for display. When the operator cannot approach the wire harness in use, by pulling the wing plate 303, the wing plate 303 drives the telescopic tube 3 to extend from inside the fixed tube 2, and at the same time the signal line 302 can be elongated, so as to extend the electromagnetic induction probe 301, facilitating the conduction test when the operator cannot approach the wire harness in use.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A high-voltage conduction test device, comprising a handheld conduction test device (1), characterized in that: On one side of the middle part inside the handheld conduction test device (1), a signal conversion device (101) is fixedly arranged. At the lower end inside the handheld conduction test device (1), a processing device (102) is fixedly arranged. In the middle of the upper end face of the handheld conduction test device (1), a circular opening (105) is arranged. A fixed pipe (2) is fixedly connected to the upper end of the circular opening (105). A telescopic pipe (3) is movably connected inside the fixed pipe (2). The upper end of the telescopic pipe (3) extends out of the upper end of the fixed pipe (2) and is fixedly connected to an electromagnetic induction probe (301). The electromagnetic induction probe (301) is connected to the signal conversion device (101) through a signal line (302) passing through the circular opening (105) along the inside of the telescopic pipe (3).

2. The high-voltage conduction test device according to claim 1, wherein: On the other side of the middle part inside the handheld conduction test device (1), a power supply battery (103) is fixedly arranged. A display (104) is fixedly arranged on the front end face of the handheld conduction test device (1).

3. The high-voltage conduction test device according to claim 2, wherein: The signal conversion device (101) and the processing device (102) and the display (104) and the processing device (102) are both connected by data lines. The power supply battery (103) and the processing device (102) are connected by a power supply line.

4. A high-voltage conduction test device according to claim 1, characterized in that: On both sides of the upper end of the telescopic pipe (3), wing plates (303) are fixedly connected. At the lower ends of the two wing plates (303), guide pipes (304) are fixedly connected.

5. The high-voltage conduction test device according to claim 4, characterized in that: A limit ring (201) is fixedly connected to the upper end of the fixed pipe (2). A connecting ring (4) is sleeved and connected to the lower end of the outer side end face of the fixed pipe (2). On both sides of the connecting ring (4), support rings (401) are fixedly connected. The lower ends of the two guide pipes (304) are respectively fixedly connected to the two support rings (401) on the connecting ring (4).

6. The high-voltage conduction test device according to claim 5, wherein: On both sides of the upper end face of the handheld conduction test device (1), guide rods (106) are fixedly connected.

7. The high-voltage conduction test device according to claim 6, characterized in that: The upper ends of the two guide rods (106) respectively pass through the middle parts of the two support rings (401) and extend into the two guide pipes (304).

Images