一种压敏电阻测试保护装置
By designing a protection device for varistor testing and using a carrier plate and pressure rod structure to fix the wires, the problem of circuit instability in multiple varistor tests was solved, realizing multi-station synchronous testing and improving the continuity and efficiency of testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YONGZHAN ELECTRONICS CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, when multiple varistors are tested simultaneously, the circuitry is complex and prone to tangling, leading to unstable connections that are susceptible to loosening or breakage, thus affecting the continuity and efficiency of the test.
A varistor testing and protection device was designed, which adopts a carrier plate and pressure bar structure. The wires are fixed by sealing the test frame edge and closing the pressure plate. Combined with the limiting structure, the line stability is ensured, and multi-station synchronous testing is realized.
It improves the reliability of test connections, avoids breakage caused by line dragging, shortens test time, and improves testing efficiency.
Smart Images
Figure CN224518774U_ABST
Abstract
Claims
1. A pressure sensitive resistance test protection device, comprising a carrier plate (1), the top surface of the carrier plate (1) is provided with test frames (3) at equal intervals, characterized in that: A pressure rod (4) is provided above the top surface of the carrier plate (1). Rotating rods (2) are provided at equal intervals at the bottom end of the pressure rod (4). The bottom end of the rotating rod (2) is rotatably connected to the carrier plate (1). The top end of the rotating rod (2) is rotatably connected to the pressure rod (4). A pressure plate (5) is provided between the two pressure rods (4). The varistor is placed in the test frame (3) for testing. The pressure plate (5) is used to cover the test frame (3) for protection.
2. The pressure sensitive resistor test protection device of claim 1, wherein: One of the rotating rods (2) has a limiting seat (6) fixedly connected to its outer side wall, and a plug seat (7) is provided above the top of the limiting seat (6).
3. The pressure sensitive resistor test protection device of claim 2, wherein: The top of the plug-in (7) is connected to a rotating shaft (10).
4. The piezoresistor test protection device of claim 2, wherein: The top end of the plug-in base (7) is fixedly connected to the pressure rod (4) by screws, and a sliding seat (11) is slidably connected inside the plug-in base (7).
5. The varistor testing and protection device according to claim 4, characterized in that: The bottom end of the sliding seat (11) is fixedly connected to a locking post (12), and the top end of the sliding seat (11) is provided with a compression spring (14), which is fixedly connected to the bottom end of the pressure rod (4).
6. The piezoresistor test protection device of claim 2, wherein: The limiting seat (6) is designed as an L-shaped structure, and a plug hole (8) is provided on the top surface of the horizontal section. One end of the limiting seat (6) is set as an inclined surface.
7. The piezoresistive test protection device of claim 4, wherein: The bottom outer wall of the plug-in seat (7) is fixedly connected to a limiting post (13), and the inner wall of the sliding seat (11) is provided with a slot (9). The sliding seat (11) is slidably connected to the plug-in seat (7) through the slot (9).