Test method and test system for portable rapid cooling equipment
By using standardized testing methods and systems, the problem of incomplete testing of portable rapid cooling equipment has been solved, enabling multi-condition simulation and accurate testing of the equipment, thereby improving the reliability and applicability of the tests.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL
- Filing Date
- 2025-12-04
- Publication Date
- 2026-04-17
AI Technical Summary
Existing testing technologies for portable rapid cooling devices suffer from incomplete environmental simulation, inaccurate load simulation, unreasonable monitoring points, insufficient comparability, and lack of uniformity detection, resulting in an inability to accurately reflect the cooling effect and safety of the device.
Standardized testing methods and systems are adopted, including a test environment simulation module, a load module, a temperature monitoring module, and a data recording module. Various working conditions are simulated, and thermocouples are used as temperature detection elements, which are arranged at the center of the load module or multiple points of the cooling equipment to conduct comprehensive testing of cooling speed and temperature uniformity.
It enables comprehensive and accurate evaluation of portable rapid cooling devices, covering various operating conditions, improving the reliability and repeatability of testing, quantifying the cooling advantages of the devices, and is applicable to different types of cooling devices.
Smart Images
Figure CN121877425A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cooling equipment testing technology, and specifically to a testing method and system suitable for portable rapid cooling equipment. Background Technology
[0002] Portable rapid cooling devices (such as individual cooling clothing and rapid cooling temperature control blankets) are widely used in special scenarios such as individual combat and field operations. Their cooling speed, temperature control stability, and temperature uniformity are directly related to the safety and user experience.
[0003] Existing testing technologies have the following shortcomings: First, the test environment simulation is too simplistic and does not cover complex working conditions such as high temperature and varying humidity. Second, the thermal performance of the load module does not closely match the actual usage scenario and cannot truly reflect the cooling effect of the equipment. Third, the temperature monitoring point design is unreasonable, making it difficult to accurately capture core cooling data. Fourth, there is a lack of standardized comparative testing procedures, making it impossible to quantify the cooling advantages of the equipment. Fifth, there is a lack of methods for detecting the temperature uniformity of large-area cooling equipment (such as temperature control blankets).
[0004] Therefore, there is an urgent need for a standardized, precise, and comprehensive testing method and testing device to provide a reliable basis for the performance evaluation of portable rapid cooling devices. Summary of the Invention
[0005] To address the shortcomings of existing testing technologies, such as incomplete environmental simulation, inaccurate load simulation, unreasonable monitoring points, insufficient comparability, and lack of uniformity detection, this invention provides a testing method and system for portable rapid cooling devices. This system enables comprehensive and accurate testing of the device's cooling speed, temperature control stability, and temperature uniformity, and features standardization and strong repeatability.
[0006] This invention is specifically achieved through the following technical solution: A test method for a portable rapid cooling device includes the following steps: S1. Test environment preparation: Adjust the test environment to the target operating conditions and stabilize for 30 minutes.
[0007] S2. Load pretreatment: Preheat the load module to 45℃±0.5℃ and keep it warm for 10 minutes; wherein, the load module is a refrigerator test pack with thermal properties equivalent to lean beef, the size of a single test pack is 100mm×100mm×50mm, and the weight is 500g. Each 1000g of filling material of the load module contains 230g of hydroxyethyl methylcellulose, 764.2g of water, 5g of sodium chloride, and 0.8g of p-chloro-m-cresol.
[0008] S3. Pre-cooling the device under test: Adjust the cooling device under test to the highest setting to pre-cool until the temperature stabilizes.
[0009] S4. Installation: Set up the experimental group by attaching the load module to the cooling device; set up the control group by placing the load module on the heat insulation board; for both the experimental and control groups, arrange the temperature test module at the center of the load module or at multiple points on the cooling device to be tested, according to the test items.
[0010] S5. Data Acquisition: Record the temperature data of the experimental group and the control group.
[0011] S6, Repeated Operating Conditions: Replace the repeated operating condition steps S1~S5 to complete the test under all operating conditions.
[0012] As a further improvement of the present invention, the test item is a cooling rate test, and the temperature test module is arranged in the center of the load module; step S5 specifically involves: recording the temperature data of the experimental group and the control group within 2 hours, or recording the temperature data of the experimental group and the control group until the temperature of the experimental group drops to 20°C. As a further improvement of the present invention, the test item is a temperature uniformity test, and the temperature test module is arranged at five points, including the center and four corners of the cooling device to be tested; the specific step S5 is: after the device is pre-cooled and stabilized, it runs for 30 minutes, the stable temperature at each point is recorded, and it is determined whether the temperature difference is ≤2℃.
[0013] As a further improvement of the present invention, the temperature testing module is a thermocouple.
[0014] As a further improvement of the present invention, the target operating conditions include 6 combinations: temperature 25℃±2℃ + humidity 35%±5%, temperature 25℃±2℃ + humidity 70%±5%, temperature 32℃±2℃ + humidity 35%±5%, temperature 32℃±2℃ + humidity 70%±5%, temperature 40℃±2℃ + humidity 35%±5%, and temperature 40℃±2℃ + humidity 70%±5%.
[0015] As a further improvement of the present invention, the qualified standard for cooling rate is: the cooling range of the experimental group is ≥5℃ within 2 hours, and the cooling range is more than 1.5℃ higher than that of the control group.
[0016] This invention also provides a test system for implementing the above-mentioned portable rapid cooling device test method, including a test environment simulation module, a load module, a temperature monitoring module, a fixing module, and a data recording module; wherein, the test environment simulation module is used to adjust the test environment to the target operating condition; the load module is a refrigerator test pack with thermal performance equivalent to lean beef, with a single test pack size of 100mm×100mm×50mm and a weight of 500g, and each 1000g of filling material of the load module contains 230g of hydroxyethyl methylcellulose, 764.2g of water, 5g of sodium chloride, and 0.8g of p-chloro-m-cresol; the temperature monitoring module uses thermocouples, which are arranged at the center of the load module or at multiple points of the cooling device to be tested according to the test items; the fixing module includes a heat insulation plate and a horizontal support structure for placing the cooling device to be tested; the data recording module is used to collect and store the data obtained by the temperature monitoring module in real time.
[0017] As a further improvement of the present invention, the load module is divided into two specifications: the load module adapted to individual soldier cooling clothing is arranged in two layers with 14 modules in each layer; the load module adapted to rapid cooling temperature control blanket has a size of 800mm×500mm×100mm and a weight of 40kg, and is laid in two layers with 8 modules on the long side and 5 modules on the short side.
[0018] The beneficial effects of this invention are: 1. Comprehensive testing coverage: It covers 6 core operating conditions and simultaneously supports cooling rate and temperature uniformity testing, comprehensively evaluating equipment performance; 2. Realistic and accurate simulation: The thermal performance of the load module is close to that of the human body, and the environmental conditions cover different seasons and humidity conditions, making the test results more valuable; 3. Standardized operation: It clarifies the parameters and time requirements for key steps such as equipment pre-cooling, load arrangement, and data acquisition, ensuring strong repeatability; 4. Precise and efficient testing: Through multi-point monitoring and control group settings, the cooling advantage of the equipment is accurately quantified, and the data recording module achieves automated data acquisition, improving testing efficiency; 5. Strong adaptability: The load specifications and arrangement can be adjusted according to different types of portable rapid cooling equipment, making it widely applicable. Attached Figure Description
[0019] Figure 1 This is a flowchart of the testing method of the present invention; Figure 2 This is a schematic diagram of the load module arrangement of the experimental group during the testing of the cooling blanket according to the present invention; Figure 3 This is a schematic diagram of the load module arrangement of the control group during the test of the cooling blanket in this invention; Figure 4 This is a schematic diagram of the load module arrangement of the experimental group during the testing of individual soldier cooling clothing according to the present invention; Figure 5This is a schematic diagram of the load module arrangement of the control group during the test of individual soldier cooling clothing in this invention. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] The test device of this invention includes a test environment simulation module, a load module, a temperature monitoring module, a fixing module, and a data recording module. These modules work together to achieve comprehensive testing of the portable rapid cooling device. 1. Test Environment Simulation Module: Used to simulate environmental conditions in different usage scenarios, it can accurately control the temperature, humidity and wind speed of the test space; the temperature control range is 16±1℃~45℃ (including 3 core test temperature points of 25℃ / 32℃ / 40℃±2℃), the humidity control range is 35%±5%~75% (including 2 core humidity points of 35% and 70%±5%), and the wind speed control range is ≤0.2m / s, meeting the needs of multi-condition testing.
[0022] 2. Load Module: A refrigerator test pack with thermal properties equivalent to lean beef is used as the load. Each 1000g of filler material contains 230g of hydroxyethyl methylcellulose, 764.2g of water, 5g of sodium chloride, and 0.8g of p-chloro-m-cresol, meeting the requirements of GB / T8059-2016 7.5 standard. Two specifications are available depending on the test object: Compatible with individual soldier cooling clothing: The size of a single load pack is 100mm×100mm×50mm, and the weight is 500g. During the test, it is evenly distributed in two layers with 14 packs in each layer to cover the cooling area of the individual soldier cooling clothing. Compatible with rapid cooling and temperature control blankets: Overall load dimensions are 800mm×500mm×100mm, weight is 40kg, composed of multiple layers of small load packs, laid in two layers with 8 pieces on the long side and 5 pieces on the short side. Figure 2 As shown in Figure 3.
[0023] 3. Temperature monitoring module: Thermocouples are used as temperature sensing elements, and their arrangement varies depending on the test item: Cooling rate test: Thermocouples are placed at the center of the load pack (for individual cooling clothing tests, the thermocouples are placed at the center of the largest surface of the load; for rapid cooling temperature control blanket tests, the thermocouples are placed at the very center of the middle layer of the load). Temperature uniformity test (for rapid cooling temperature control blankets): Thermocouples are placed at the center of the equipment and at the four corners of the outermost edge of the pipeline, for a total of 5 monitoring points.
[0024] 4. Fixing module: including heat insulation board and horizontal support structure; when testing individual cooling clothing, place the equipment flat on the ground to fully extend the pipeline; when testing rapid cooling temperature control blanket, lay the equipment flat on the heat insulation board to ensure that the load is fully in contact with the equipment.
[0025] 5. Data recording module: Used to collect temperature data monitored by thermocouples in real time, record the initial temperature, real-time temperature and end temperature during the test, support data storage and export, and facilitate subsequent analysis.
[0026] The test method of the present invention, such as Figure 1 The specific steps are as follows: 1. Test environment preparation: Adjust the test space to the target working conditions (6 core working conditions: temperature 25℃ / 32℃ / 40℃±2℃, humidity 35% / 70%±5%, wind speed ≤0.2m / s) through the test environment simulation module and stabilize for 30 minutes.
[0027] 2. Load pretreatment: Preheat the load module to 45℃±0.5℃ and keep it warm for 10 minutes to ensure uniform temperature.
[0028] 3. Equipment pre-cooling: Connect the portable rapid cooling device to be tested to the power supply and adapter pipeline (the individual cooling clothing needs to be filled with water first), adjust it to the highest setting (all 3 indicator lights are on), and pre-cool until the temperature stabilizes.
[0029] 4. Installation: Complete the bonding and installation of the load with the equipment within 3-5 minutes (experimental group), and at the same time, place another group of preheated loads on the heat insulation board as a control group.
[0030] 5. Data Acquisition: The temperature of the load module center of the experimental group and the control group is recorded in real time through the temperature monitoring module. The test duration is 2 hours, or until the load temperature of the experimental group drops to 20℃.
[0031] 6. Repeat the test under different operating conditions: Repeat steps 1 to 5 above to complete the test of all 6 operating conditions.
[0032] Cooling rate qualification standard: Within a test duration of 2 hours, the load cooling range of the experimental group is not less than 5℃, and is more than 1.5℃ higher than that of the control group. The testing device of this invention can also be used to test the temperature uniformity of portable rapid cooling devices, taking a rapid cooling temperature control blanket as an example. Specifically, it includes the following steps: 1. Environmental preparation: Adjust the test space to the target working conditions (32±1℃ or 16±1℃, humidity 45%~75%, wind speed 0) through the test environment simulation module and stabilize for 30 minutes; 2. Load pretreatment: Preheat the load module to 45℃±0.5℃ and keep it at that temperature for 10 minutes to ensure uniform temperature. 3. Equipment operation: After precooling the equipment to the highest setting until the temperature stabilizes, continue running the equipment until the temperature at all monitoring points stabilizes; 4. Installation and setup: Lay the rapid cooling temperature control blanket flat on the insulation board. A load may or may not be placed on it. Monitoring point setup: Install 5 thermocouples at the designated locations on the equipment. 5. Data Recording: The data recording module collects and stores stable temperature data at each monitoring point; 6. Repeat the test: Switch to another ambient temperature condition and repeat steps 1 to 5 to complete two tests.
[0033] Temperature uniformity qualification standard: The temperature difference at all monitoring points is ≤2℃, which is considered to be in compliance with the equipment temperature uniformity standard.
[0034] Example 1 Test on the cooling speed of individual cooling clothing Test setup: test environment, load modules (28 500g load packs) adapted to individual soldier cooling clothing, 1 thermocouple, 1 set of data recording module, 1 heat insulation plate; Test subject: Individual cooling vest, model S2-LA-0100-D024-13; Test steps: A. Select operating condition 1 (temperature 25℃±2℃, humidity 35%±5%, wind speed 0.1m / s), and adjust the test environment to stabilize for 30 minutes; B. Preheat 28 load packs to 45.3℃ and hold for 10 minutes; C. Fill the cooling clothing unit and clothing with water, connect the pipes and adapter, and set it to the highest setting to pre-cool until the temperature stabilizes (about 15 minutes). D. Within 5 minutes, distribute 28 load packs in a two-layer layout throughout the cooling area of the garment, such as... Figure 4 As shown, another group of load packs at the same temperature was placed on the heat insulation board as a control group, as shown. Figure 5 As shown; E. Start the data logging module to collect temperature data in real time, and stop the test after 2 hours; F. Data recording: The experimental group's initial temperature was 45.3℃, and the ending temperature was 38.0℃, with a temperature drop of 7.3℃; the control group's initial temperature was 45.4℃, and the ending temperature was 40.1℃, with a temperature drop of 5.3℃. G. Change to the remaining 5 operating conditions and repeat steps 1 to 6. If all operating conditions meet the requirement of "temperature drop ≥ 5℃ and 1.5℃ higher than the control group", the cooling rate is deemed qualified; otherwise, it is deemed unqualified. Example 2 Temperature uniformity test of rapid cooling temperature control blanket Test setup: a load module adapted for rapid cooling and temperature control blankets, 5 thermocouples, 1 data recording module, and 1 heat insulation board; Test subject: Rapid cooling temperature control blanket, model S2-LA-0150-D024-13; Test steps: a. Adjust the test environment to 32±1℃, humidity 60%, wind speed 0, and stabilize for 30 minutes; b. Lay the temperature-controlled blanket flat on the insulation board; no load is required. c. Install 5 thermocouples in the center and four corners of the temperature-controlled blanket; d. Fill the temperature control blanket with water and connect it to the main unit. Set it to the highest setting to pre-cool until the temperature stabilizes (about 20 minutes). e. Run continuously for 30 minutes and record the stable temperature at each point: center 36.4℃, corner temperatures 36.2℃, 36.5℃, 36.3℃, and 36.6℃ respectively, with a maximum temperature difference of 0.4℃ ≤ 2℃; f. Adjust the test environment to 16±1℃ and repeat steps 1 to 5. If the maximum temperature difference at each point is 0.3℃≤2℃, the temperature uniformity is considered qualified; otherwise, it is considered unqualified. The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A test method for a portable rapid cooling device, characterized in that, The method includes the following steps: S1. Test environment preparation: Adjust the test environment to the target operating conditions and stabilize it for 30 minutes; S2. Load pretreatment: Preheat the load module to 45℃±0.5℃ and keep it warm for 10 minutes; wherein, the load module is a refrigerator test pack with thermal properties equivalent to lean beef, the size of a single test pack is 100mm×100mm×50mm, and the weight is 500g. Each 1000g of filling material of the load module contains 230g of hydroxyethyl methylcellulose, 764.2g of water, 5g of sodium chloride, and 0.8g of p-chloro-m-cresol; S3. Pre-cooling the device under test: Set the cooling device to the highest setting to pre-cool until the temperature stabilizes; S4. Layout and Installation: Set up the experimental group by attaching the load module to the cooling device; simultaneously set up the control group by placing the load module on the heat insulation board; for both the experimental and control groups, arrange the temperature test module according to the test items. S5. Data Acquisition: Record the temperature data of the experimental group and the control group; S6, Repeated Operating Conditions: Replace the repeated operating condition steps S1~S5 to complete the test under all operating conditions.
2. The test method according to claim 1, characterized in that, The test item is a cooling rate test, and the temperature test module is arranged in the center of the load module; step S5 specifically involves: recording the temperature data of the experimental group and the control group within 2 hours, or recording the temperature data of the experimental group and the control group until the temperature of the experimental group drops to 20°C.
3. The test method according to claim 1, wherein the temperature test module is a thermocouple.
4. The test method according to claim 1, characterized in that, The target operating conditions include 6 combinations: temperature 25℃±2℃ + humidity 35%±5%, temperature 25℃±2℃ + humidity 70%±5%, temperature 32℃±2℃ + humidity 35%±5%, temperature 32℃±2℃ + humidity 70%±5%, temperature 40℃±2℃ + humidity 35%±5%, and temperature 40℃±2℃ + humidity 70%±5%.
5. The test method according to claim 2, characterized in that, The standard for qualified cooling rate is: the temperature drop of the experimental group is ≥5℃ within 2 hours, and the temperature drop is more than 1.5℃ higher than that of the control group.
6. A test system for implementing the test method of the portable rapid cooling device as described in any one of claims 1-5, characterized in that, The testing system includes a test environment simulation module, a load module, a temperature monitoring module, a fixing module, and a data recording module; The test environment simulation module is used to adjust the test environment to the target operating conditions; The load module is a refrigerator test pack with thermal properties equivalent to lean beef. The size of a single test pack is 100mm×100mm×50mm, and the weight is 500g. Each 1000g of filling material of the load module contains 230g of hydroxyethyl methylcellulose, 764.2g of water, 5g of sodium chloride, and 0.8g of p-chloro-m-cresol. The temperature monitoring module uses a thermocouple; The fixing module includes a heat insulation plate and a horizontal support structure for placing the cooling device to be tested; The data recording module is used to collect and store the data obtained by the temperature monitoring module in real time.
7. The testing apparatus according to claim 6, characterized in that, The load modules are available in two specifications: the load modules for individual soldier cooling clothing are arranged in two layers with 14 modules per layer; the load modules for quick-cooling temperature control blankets are 800mm×500mm×100mm in size and weigh 40kg, and are laid in two layers with 8 modules on the long side and 5 modules on the short side.