Temperature control device, testing machine and testing system for digital circuit boards
By introducing a flow regulator and a temperature sensor into the liquid cooling system, the coolant flow rate can be monitored and adjusted in real time, solving the problem of large temperature fluctuations of the target chip in the liquid cooling system. This enables rapid, accurate, and stable control of the chip temperature and improves test stability.
CN224439276UActive Publication Date: 2026-06-30HANGZHOU CHANGCHUAN TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU CHANGCHUAN TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing liquid cooling systems cannot quickly, accurately, and stably control the junction temperature of each target chip, resulting in large temperature fluctuations and affecting the stability of chip testing.
Method used
The liquid cooling loop consists of a liquid cooler, a splitter, multiple liquid cooling branches, a confluencer, and a controller. The flow rate of the coolant is monitored and adjusted in real time by a flow regulator and a temperature sensor to ensure that the temperature of each target chip is within a predetermined range.
Benefits of technology
It achieves rapid, accurate, and stable temperature control of the target chip, reduces high-temperature drift, and improves the stability and reliability of chip testing.
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Smart Images
Figure CN224439276U_ABST
Abstract
This application relates to the field of chip testing, and in particular to a temperature control device, testing machine, and testing system for a digital circuit board. The temperature control device for the digital circuit board includes a liquid cooler, a distributor, multiple liquid cooling branches, a confluencer, and a controller. The liquid cooler, the distributor, the multiple liquid cooling branches, and the confluencer are connected to form a liquid cooling loop. Each of the liquid cooling branches includes a flow regulator. The controller controls each flow regulator based on a detection signal used to characterize the temperature of each target chip, thereby controlling the flow rate of coolant flowing through each digital circuit board in each of the liquid cooling branches. This ensures that the temperature of each target chip remains within its corresponding temperature range, achieving rapid, accurate, and stable control of the target chip junction temperature and reducing the high-temperature drift problem of the chip during chip testing.
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