Multifunctional electric aging protection device

Abstract

The utility model provides a multifunctional electric aging protection device, comprising a shell temperature detection unit which is composed of a thermocouple sensor and a heat conduction structure and is used for collecting the shell temperature of an electronic component in real time and converting the shell temperature into an electric signal; the voltage and current detection unit comprises a voltage transformer, a current transformer and a signal adjusting circuit and is used for sampling and processing voltage and current signals; the central control unit is used for receiving the signals and judging whether an overvoltage, overcurrent or overtemperature threshold value is triggered or not; the power-off protection unit comprises a relay, is connected in series with a power supply loop and is used for responding to instructions of the central control unit to cut off the circuit; and the communication unit is used for bidirectionally transmitting data with an upper computer through an RS485 module. By integrating the functions of shell temperature detection, voltage and current monitoring, intelligent power-off and remote communication, the problems of protection blind spots and data islands in the aging test of electronic components are solved.

Description

Technical Field

[0001] This utility model relates to the field of reliability testing technology for electric aging, and in particular to a multifunctional electric aging protection device. Background Technology

[0002] During the electrical aging process of electronic components, prolonged power application is required to screen out products that fail early, thereby improving product quality and reliability. However, during electrical aging, electronic components may suffer irreversible damage due to excessively high case temperature, abnormal voltage or current, etc., which may even lead to safety accidents in severe cases. Existing electrical aging protection devices cannot simultaneously possess all of the above functions and lack upper-level computer communication capabilities, making it difficult to achieve remote monitoring and data analysis. Utility Model Content

[0003] To address the aforementioned issues, this utility model aims to propose a multifunctional electrical aging protection device. By integrating shell temperature detection, voltage and current monitoring, intelligent power-off, and remote communication functions, it solves the problems of protection blind spots and data silos in the aging test of electronic components.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A multifunctional electric aging protection device, comprising:

[0006] Case temperature detection unit: Composed of thermocouple sensors and thermal conductive structure, it collects the case temperature of electronic components in real time and converts it into an electrical signal;

[0007] Voltage and current detection unit: includes voltage transformer, current transformer and signal conditioning circuit, used to sample and process voltage and current signals;

[0008] Central control unit: Receives the above signals and determines whether overvoltage, overcurrent or overtemperature thresholds have been triggered;

[0009] Power failure protection unit: includes a relay, connected in series in the power supply circuit, used to cut off the circuit in response to commands from the central control unit;

[0010] Communication unit: transmits data bidirectionally with the host computer via an RS485 module.

[0011] Furthermore, the heat-conducting structure is a copper temperature-equalizing block that is closely attached to the thermocouple sensor and in direct contact with the electronic component housing.

[0012] Furthermore, the signal adjustment circuit includes an amplifier circuit and a low-pass filter circuit.

[0013] Furthermore, the central control unit is a microcontroller.

[0014] Furthermore, it also includes a display screen, which is electrically connected to the central control unit.

[0015] Furthermore, it also includes an alarm unit, which receives alarm signals from the central control unit via a communication unit and issues an audible and visual alarm.

[0016] Beneficial effects: This utility model integrates shell temperature detection, voltage and current monitoring, power failure protection and RS485 communication modules to realize automated protection and remote data interaction in the aging process of electronic components; its structural improvements include the combination of thermocouple and thermal conductive structure for temperature monitoring, electrical sampling link between transformer and adjustment circuit, and multi-module linkage mechanism coordinated by central control unit, which solves the problems of single function and lack of remote monitoring in the existing technology. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a functional structure diagram of the multifunctional electric aging protection device described in an embodiment of the present invention. Detailed Implementation

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example 1

[0021] See Figure 1 A multifunctional electric aging protection device, comprising:

[0022] Case temperature detection unit 1: It consists of thermocouple sensor 101 and heat-conducting structure 102, which collects the case temperature of electronic components in real time and converts it into an electrical signal;

[0023] Voltage and current detection unit 2: includes voltage transformer 201, current transformer 202 and signal adjustment circuit 203, used to sample and process voltage and current signals;

[0024] Central control unit 3: Receives the above signals and determines whether overvoltage, overcurrent or overtemperature thresholds have been triggered;

[0025] Power failure protection unit 4: includes relay 401, connected in series in the power supply circuit, used to cut off the circuit in response to the command of the central control unit 3;

[0026] Communication unit 5: transmits data bidirectionally with the host computer via RS485 module 501.

[0027] This embodiment integrates shell temperature detection, voltage and current monitoring, power failure protection, and RS485 communication modules to achieve automated protection and remote data interaction during the aging process of electronic components. Its structural improvements include a combination of thermocouples and thermally conductive structures for temperature monitoring, an electrical sampling link between current transformers and adjustment circuits, and a multi-module linkage mechanism coordinated by the central control unit, which solves the problems of single function and lack of remote monitoring in the existing technology.

[0028] In a specific example, the heat-conducting structure 102 is a copper temperature-equalizing block that is closely attached to the thermocouple sensor 101 and in direct contact with the electronic component housing.

[0029] In this embodiment, the heat-conducting structure uses a copper temperature distribution block, which is closely attached to the thermocouple sensor and in direct contact with the electronic component housing, improving the efficiency and accuracy of temperature conduction and ensuring the stability of housing temperature detection.

[0030] In a specific example, the signal adjustment circuit 203 includes an amplifier circuit and a low-pass filter circuit.

[0031] The signal adjustment circuit in this embodiment includes an amplifier circuit and a low-pass filter circuit, which can process voltage and current signals, improve signal accuracy, reduce the impact of interference and noise, and ensure data accuracy.

[0032] In a specific example, the central control unit 3 is a microcontroller.

[0033] The central control unit in this embodiment uses a microcontroller, which is capable of performing complex logical judgments and calculations, thereby improving the intelligence level of the equipment and ensuring its safety and reliability.

[0034] In a specific example, a display screen 6 is also included, which is electrically connected to the central control unit 3.

[0035] In this embodiment, the display screen is electrically connected to the central control unit, enabling real-time display of important parameters such as voltage, current, and casing temperature, facilitating user monitoring and operation, and improving the ease of use of the equipment.

[0036] In a specific example, an alarm unit 7 is also included, which receives an alarm signal from the central control unit 3 via the communication unit 5 and issues an audible and visual alarm.

[0037] In this embodiment, the alarm unit receives alarm signals from the central control unit via the communication unit and issues audible and visual alarms, which can promptly alert and handle abnormal situations, improving the safety and emergency response capabilities of the equipment.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional electrical burn-in protection device, characterized by, include: The shell temperature detection unit (1) consists of a thermocouple sensor (101) and a heat-conducting structure (102), which collects the shell temperature of electronic components in real time and converts it into an electrical signal. Voltage and current detection unit (2): includes voltage transformer (201), current transformer (202) and signal adjustment circuit (203), used to sample and process voltage and current signals; Central control unit (3): Receives the above signals and determines whether overvoltage, overcurrent or overtemperature threshold is triggered; Power failure protection unit (4): includes a relay (401), connected in series in the power supply circuit, used to cut off the circuit in response to the command of the central control unit (3); Communication unit (5): transmits data bidirectionally with the host computer via RS485 module (501).

2. The multi-functional electrical burn protection device of claim 1, wherein, The heat-conducting structure (102) is a copper temperature-equalizing block that is closely attached to the thermocouple sensor (101) and in direct contact with the electronic component housing.

3. The multi-functional electrical burn protection device of claim 1, wherein, The signal adjustment circuit (203) includes an amplifier circuit and a low-pass filter circuit.

4. The multi-functional electrical burn protection device of claim 1, wherein, The central control unit (3) is a microcontroller.

5. The multi-functional electrical burn protection device of claim 1, wherein, It also includes a display screen (6), which is electrically connected to the central control unit (3).

6. The multi-functional electrical burn protection device of claim 1, wherein, It also includes an alarm unit (7), which receives an alarm signal from the central control unit (3) via a communication unit (5) and issues an audible and visual alarm.

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