Instrument high-voltage impact test equipment
By designing a high-voltage impact test device for instruments, using a combination of a transparent frame, top cover, and protective components, and employing relays and high-voltage diodes for signal isolation, the problem of signal generators being easily damaged and parts exploding during high-voltage instrument testing was solved, thus achieving a safe high-voltage testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-03
AI Technical Summary
In existing technologies, conventional signal generators or power supplies are easily damaged by high voltage during high-voltage impact tests on automotive instruments, posing a safety hazard. Furthermore, high-voltage impacts may cause parts to explode, endangering personnel safety.
A high-voltage impulse test device for instruments was designed, comprising a high-voltage power supply, a workbench, a test protection structure, and an electrical protection structure. It adopts a combination of a transparent frame, a top cover, and protective components, and uses relays, first and second high-voltage diodes for signal isolation, and provides protection through a transparent plate to ensure safety.
Effective signal isolation was achieved, protecting the safety of instruments and personnel, reducing the risk of component explosion, and ensuring the safety of the testing process.
Smart Images
Figure CN223966660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the design of high-voltage testing equipment and the field of instrument testing, specifically to a high-voltage impact testing equipment for instruments. Background Technology
[0002] The necessity of conducting high-voltage impact tests on automotive instruments is mainly due to the possibility of high voltage generated by the alternator due to poor wiring or abnormalities in the internal rectifier bridge, coils, and regulators. For a 12V system gasoline vehicle, the voltage may reach 100-120V, while for a 28V system gasoline vehicle, the voltage may reach 100V-180V. However, most of these high voltages are instantaneous, but even instantaneous high voltages can damage the instruments. Therefore, most instruments are designed with voltage regulation circuits at the signal input end, especially at the power supply end.
[0003] One of the most important purposes of a voltage regulator circuit is to absorb instantaneous high voltage. It is necessary to test this function for the entire instrument. Currently, we often use high-voltage power supply as high-voltage input signal. However, because the high voltage itself impacts and conventional signals are injected into the instrument at the same time, it often causes the conventional signal generator or conventional power supply to be damaged by high voltage. Therefore, relevant isolation work is required.
[0004] Furthermore, high-pressure testing carries the risk of "exploding parts," so safety precautions must be taken. Utility Model Content
[0005] The technical problem this invention aims to solve is that high-pressure testing of automotive instruments is necessary, while also protecting the safety of related equipment and personnel.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: This utility model is an instrument high-voltage impact testing device, including a high-voltage power supply, a workbench, a test protection structure, and an electrical protection structure. The high-voltage power supply is placed on the workbench, the test protection structure is placed on the workbench, and the instrument to be tested is placed on the test protection structure. The electrical protection structure is placed on the workbench and includes a transparent frame, a top cover, and a protective component assembly. The transparent frame is placed on the workbench, and a transparent plate is adhered to the side wall of the transparent frame. The top cover is installed on the transparent frame by bolts, and the protective component assembly is located inside the transparent frame.
[0007] Furthermore, the high-voltage power supply is a DC high-voltage power supply with a maximum power output of 300V.
[0008] Furthermore, the protection component assembly includes a relay, a first high-voltage diode, and a second high-voltage diode. The relay is bonded to the bottom transparent plate, and one end of the switch has a metal conductor that penetrates through one side wall of the transparent plate. The positive terminal of the first high-voltage diode is soldered to the other end of the relay switch's metal conductor. The negative terminal of the first high-voltage diode penetrates through one side wall of the transparent plate. The negative terminal of the second high-voltage diode is soldered to the negative terminal of the first high-voltage diode, and the positive terminal of the second high-voltage diode penetrates through one side wall of the transparent plate.
[0009] Furthermore, the reverse breakdown voltage of the first high-voltage diode and the second high-voltage diode must be greater than 400V.
[0010] Furthermore, a high-voltage sign is placed on the workbench.
[0011] Furthermore, the test protection structure includes a base, a mounting base, a fixing frame, and a transparent observation plate. The base is placed on the workbench, the mounting base is installed on the base by bolts, the fixing frame is placed on the mounting base, and the transparent observation plate is bonded between the fixing frame and the mounting base.
[0012] Furthermore, the workbench is provided with a movable seat, the movable seat is provided with a wire guide plate, and the wire guide plate is provided with multiple sets of wire guide holes.
[0013] The beneficial effects of this utility model by adopting the above structure are as follows:
[0014] 1. By utilizing the relay, first high-voltage diode, and second high-voltage diode in the electrical protection structure, signals can be isolated from each other, but signals can be simultaneously input to the instrument, and the transparent frame and transparent plate form a protective shell.
[0015] 2. Testing the protective structure can protect the personnel on the front side and reduce the potential injury to personnel from exploding parts. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an instrument high-pressure impact testing device proposed in this utility model;
[0017] Figure 2 This is a structural schematic diagram of an instrument high-pressure impact testing device proposed in this utility model from another angle;
[0018] Figure 3 This is a top view of an instrument high-pressure impact testing device proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the electrical protection structure of an instrument high-voltage impulse test equipment proposed in this utility model;
[0020] Figure 5 This is a wiring diagram of the electrical protection structure of an instrument high-voltage impact test equipment proposed in this utility model.
[0021] Among them, 1. High-voltage power supply, 2. Workbench, 3. Test protection structure, 4. Electrical protection structure, 5. Transparent frame, 6. Top cover, 7. Protection component assembly, 8. Relay, 9. First high-voltage diode, 10. Second high-voltage diode, 11. High-voltage plate, 12. Base, 13. Mounting base, 14. Fixing bracket, 15. Transparent observation plate, 16. Movable base, 17. Wiring plate, 18. Wiring hole, 19. Transparent plate. Detailed Implementation
[0022] As per the instruction manual Figures 1-4 As shown, this utility model is a high-voltage impact testing device for instruments, including a high-voltage power supply 1, a workbench 2, a test protection structure 3, and an electrical protection structure 4. The high-voltage power supply 1 is placed on the workbench 2, the test protection structure 3 is placed on the workbench 2, and the instrument to be tested is placed on the test protection structure 3. The electrical protection structure 4 is placed on the workbench 2 and includes a transparent frame 5, a top cover 6, and a protective component assembly 7. The transparent frame 5 is placed on the workbench 2, and a transparent plate 19 is adhered to the side wall of the transparent frame 5. The top cover 6 is installed on the transparent frame 5 by bolts, and the protective component assembly 7 is located inside the transparent frame 5. The high-voltage power supply 1 is a DC high-voltage power supply with a maximum power output of 300V.
[0023] As per the instruction manual Figure 4 As shown, the protection component assembly 7 includes a relay 8, a first high-voltage diode 9, and a second high-voltage diode 10. The relay 8 is bonded to the bottom transparent plate 19, with one end of its switch's metal conductor penetrating through one side wall of the transparent plate 19. The relay 8 is a normally open type, powered independently by an external power supply. The relay's switching frequency is controlled by an external signal controller, following standard operating procedures. The switching time and frequency are adjusted according to test specifications. When the relay closes, high voltage is injected into the instrument. The positive terminal of the first high-voltage diode 9 is soldered to the other end of the relay 8's switch's metal conductor, and the negative terminal of the first high-voltage diode 9 penetrates through one side wall of the transparent plate 19. The negative terminal of the second high-voltage diode 10 is soldered to the negative terminal of the first high-voltage diode 9, and the positive terminal of the second high-voltage diode 10 penetrates through one side wall of the transparent plate 19. The reverse breakdown voltage of the first high-voltage diode 9 and the second high-voltage diode 10 must be greater than 400V.
[0024] As per the instruction manual Figure 4 As shown, a high-voltage sign 11 is placed on workbench 2. Several high-voltage signs 11 can be prepared and placed in dangerous locations.
[0025] As per the instruction manual Figure 1As shown, the test protection structure 3 includes a base 12, a mounting base 13, a fixing frame 14, and a transparent observation plate 15. The base 12 is set on the workbench 2. The mounting base 13 is installed on the base 12 by bolts and is a U-shaped plate. The fixing frame 14 is set on the mounting base 13. The transparent observation plate 15 is glued between the fixing frame 14 and the mounting base 13 to protect the safety of the staff and avoid the risk of the parts exploding and endangering the staff.
[0026] As per the instruction manual Figure 2 As shown, the workbench 2 is equipped with a movable seat 16, and the movable seat 16 is equipped with a wire guide plate 17, which is usually placed between the instrument and the first high voltage diode 9. The wire guide plate 17 is equipped with multiple sets of wire guide holes 18, through which high voltage wires pass, mainly to distinguish high voltage wires from ordinary wires.
[0027] In practical use: Connect the high-voltage power supply 1 and the conventional signal source to the ground wire to achieve common ground. Then connect the positive terminal of the high-voltage power supply 1 to the first switch of the relay 8. Connect the positive terminal of the conventional signal source to the positive terminal of the second high-voltage diode 10. Connect the negative terminal to the instrument through a wire. Place the instrument on the base 12, located behind the transparent observation plate 15. Use an external signal controller to control the opening and closing of the relay 8. In the working state, inject intermittent high voltage into the instrument to judge the instrument status. After completion, perform a full test on the instrument.
[0028] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-voltage impulse testing device for instruments, comprising a high-voltage power supply (1), characterized in that: It also includes a workbench (2), a test protection structure (3) and an electrical protection structure (4). The high-voltage power supply (1) is placed on the workbench (2). The test protection structure (3) is placed on the workbench (2). The instrument to be tested is placed on the test protection structure (3). The electrical protection structure (4) is placed on the workbench (2). The electrical protection structure (4) includes a transparent frame (5), a top cover (6) and a protective component assembly (7). The transparent frame (5) is placed on the workbench (2). A transparent plate (19) is bonded to the side wall of the transparent frame (5). The top cover (6) is installed on the transparent frame (5) by bolts. The protective component assembly (7) is located inside the transparent frame (5).
2. The instrument high-pressure impact testing equipment according to claim 1, characterized in that: The high-voltage power supply (1) is a DC high-voltage power supply (1) with a maximum power output of 300V.
3. The instrument high-pressure impact testing equipment according to claim 1, characterized in that: The protection component assembly (7) includes a relay (8), a first high-voltage diode (9), and a second high-voltage diode (10). The relay (8) is bonded to the bottom transparent plate (19) and one end of the switch has a metal conductor that passes through the side wall transparent plate (19). The positive terminal of the first high-voltage diode (9) is soldered to the other end of the metal conductor of the relay (8) switch. The negative terminal of the first high-voltage diode (9) passes through the side wall transparent plate (19). The negative terminal of the second high-voltage diode (10) is soldered to the negative terminal of the first high-voltage diode (9). The positive terminal of the second high-voltage diode (10) passes through the side wall transparent plate (19).
4. The instrument high-pressure impact testing equipment according to claim 3, characterized in that: The reverse breakdown voltage of the first high-voltage diode (9) and the second high-voltage diode (10) must be greater than 400V.
5. The instrument high-pressure impact testing equipment according to claim 1, characterized in that: A high-voltage sign (11) is placed on the workbench (2).
6. The instrument high-pressure impact testing equipment according to claim 1, characterized in that: The test protection structure (3) includes a base (12), a mounting base (13), a fixing frame (14), and a transparent observation plate (15). The base (12) is placed on the workbench (2). The mounting base (13) is installed on the base (12) by bolts. The fixing frame (14) is placed on the mounting base (13). The transparent observation plate (15) is bonded between the fixing frame (14) and the mounting base (13).
7. The instrument high-pressure impact testing equipment according to claim 5, characterized in that: The workbench (2) is provided with a movable seat (16), the movable seat (16) is provided with a wire guide plate (17), and the wire guide plate (17) is provided with multiple sets of wire guide holes (18).