# US 12,181,380 B2 · Detection apparatus and server > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,380 B2 - Document ID: US12181380B2 - Status: Granted - Kind: B2 - Application number: 17/840,347 - Filed: 2022-06-14 - Published: 2022-09-29 - Granted: 2024-12-31 - Earliest claimed: 2019-12-16 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Weiqiang Xu; Xiaochu Li; Yimin Yao - Web page: https://patentgrep.com/patent/US12181380B2 ## CPC - G01M 99/008: {by doing functionality tests} - G01K 1/022: for recording - G01K 3/10: in respect of time, e.g. reacting only to a quick change of temperature - G01M 3/18: for pipes, cables or tubes; for pipe joints or seals; for valves; {for welds; for containers, e.g. radiators} - G01M 13/003: Machine valves (testing valves for fluid tightness G01M3/00) - H01F 7/08: with armatures - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract A detection apparatus and a server are provided, where the apparatus is configured to detect whether a coolant heat pipe or a solenoid valve on the coolant heat pipe in a device is abnormal, and the apparatus includes a control chip. The control chip can control a working state of the solenoid valve. The control chip can further obtain a temperature of a component in the device. When it is detected whether the coolant heat pipe or the solenoid valve is abnormal, the control chip may obtain a temperature difference of the component in the device when the working state of the solenoid valve is controlled, and relatively conveniently determine whether the coolant heat pipe or the solenoid valve is abnormal based on the temperature difference. ## Claims ### Claim 1 A detection apparatus, wherein the apparatus is configured to detect whether a coolant heat pipe in a device or a solenoid valve on the coolant heat pipe is abnormal, and the apparatus comprises a control chip; and the control chip is configured to: control the solenoid valve to change from an open state to a closed state, and obtain a first temperature difference of the component in the device after a temperature of the component in the device is stable in the closed state; and control the solenoid valve to change from the closed state to the open state, and obtain a second temperature difference of the component in the device after the temperature of the component in the device is stable in the open state; determine that the coolant heat pipe is abnormal and that the solenoid valve is normal based on the second temperature difference being detected as being lower than a second threshold value and the first temperature difference being detected as being greater than a first threshold value; and determine that the solenoid valve is abnormal based on the second temperature difference being detected as being lower than the second threshold value and the first temperature difference being detected as being lower than the first threshold value. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the apparatus further comprises a power supply circuit, and the power supply circuit is configured to supply power to the solenoid valve and the control chip; and the control chip is configured to: control a power supply state of the power supply circuit for the solenoid valve. ### Claim 3 (depends on 2) The apparatus according to claim 2, wherein when the power supply circuit supplies power to the solenoid valve, the solenoid valve is in the open state; and when the power supply circuit interrupts power to the solenoid valve, the solenoid valve is in the closed state. ### Claim 4 (depends on 2) The apparatus according to claim 2, wherein when the power supply circuit interrupts power to the solenoid valve, the solenoid valve is in the open state; and when the power supply circuit supplies power to the solenoid valve, the solenoid valve is in the closed state. ### Claim 5 (depends on 1) The apparatus according to claim 1, wherein the control chip is further configured to: after determining that the coolant heat pipe or the solenoid valve is abnormal, send first alarm information to a system management module in the device, wherein the first alarm information is used to indicate that the coolant heat pipe or the solenoid valve is abnormal. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the control chip is further configured to: receive a control signal from a system management module in the device, wherein the control signal is used to indicate to the control chip to detect whether the coolant heat pipe and the solenoid valve on the coolant heat pipe in the device are abnormal. ### Claim 7 (depends on 5) The apparatus according to claim 5, wherein the apparatus further comprises a detection coil, and the detection coil is configured to detect whether the coolant heat pipe in the device leaks; and the control chip is connected to the detection coil, and is further configured to detect whether the detection coil is faulty. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the detection coil comprises a first coil and a second coil that are connected in parallel; and the control chip is configured to: detect a voltage difference between the first coil and the second coil when the first coil and the second coil are short-circuited, and send second alarm information to the system management module if the voltage difference is not zero, wherein the second alarm information is used to indicate that the detection coil is faulty. ### Claim 9 (depends on 7) The apparatus according to claim 7, wherein the control chip is further configured to send indication information to the system management module if the voltage difference is zero, wherein the indication information is used to indicate that the detection coil is normal. ### Claim 10 (depends on 7) The apparatus according to claim 7, wherein the control chip is further configured to receive a leakage analog signal using the detection coil, wherein the leakage analog signal is used to indicate that the coolant heat pipe leaks. ### Claim 11 A server, comprising a component, a coolant heat pipe, a solenoid valve on the coolant heat pipe, and a detection apparatus, wherein the detection apparatus is configured to detect whether the coolant heat pipe or the solenoid valve on the coolant heat pipe is abnormal, and the apparatus comprises a control chip; and the control chip is configured to: control the solenoid valve to change from an open state to a closed state, and obtain a first temperature difference of the component in the device after a temperature of the component in the device is stable in the closed state; and control the solenoid valve to change from the closed state to the open state, and obtain a second temperature difference of the component in the device after the temperature of the component in the device is stable in the open state; determine that the coolant heat pipe is abnormal and that the solenoid valve is normal based on the second temperature difference being detected as being lower than a second threshold value and the first temperature difference being detected as being greater than a first threshold value; and determine that the solenoid valve is abnormal based on the second temperature difference being detected as being lower than the second threshold value and the first temperature difference being detected as being lower than the first threshold value. ### Claim 12 (depends on 11) The server according to claim 11, wherein the detection apparatus further comprises a power supply circuit, and the power supply circuit is configured to supply power to the solenoid valve and the control chip; and the control chip is configured to: control a power supply state of the power supply circuit for the solenoid valve. ### Claim 13 (depends on 12) The server according to claim 12, wherein when the power supply circuit supplies power to the solenoid valve, the solenoid valve is in the open state; and when the power supply circuit interrupts power to the solenoid valve, the solenoid valve is in the closed state. ### Claim 14 (depends on 12) The server according to claim 12, wherein when the power supply circuit interrupts power to the solenoid valve, the solenoid valve is in the open state; and when the power supply circuit supplies power to the solenoid valve, the solenoid valve is in the closed state. ### Claim 15 (depends on 11) The server according to claim 11, wherein the control chip is further configured to: after determining that the coolant heat pipe or the solenoid valve is abnormal, send first alarm information to a system management module in the device, wherein the first alarm information is used to indicate that the coolant heat pipe or the solenoid valve is abnormal. ### Claim 16 (depends on 11) The server according to claim 11, the control chip is further configured to: receive a control signal from a system management module in the device, wherein the control signal is used to indicate to the control chip to detect whether the coolant heat pipe and the solenoid valve on the coolant heat pipe in the device are abnormal. ### Claim 17 (depends on 1) The detection apparatus according to claim 1, wherein the component is a component in the apparatus other than the solenoid valve and the coolant heat pipe. ### Claim 18 (depends on 11) The server according to claim 11, wherein the component is a component in the apparatus other than the solenoid valve and the coolant heat pipe.