Cabinet heat dissipation testing device

Abstract

The invention belongs to the technical field of cabinet heat dissipation testing, and particularly relates to a cabinet heat dissipation testing device which comprises a base, a U-shaped heat insulation plate is fixedly connected to the upper surface of the base, and an air conditioner assembly is fixedly connected to the upper surface of the base. The cabinet heat dissipation testing device has a function of resisting external environment interference in a testing process, can test heat dissipation data of a to-be-tested cabinet at different testing environment temperatures, and also has the capability of detecting the temperature of air discharged from the corner surface and the top of the cabinet; the cabinet heat dissipation testing device has a function of testing heat dissipation of the cabinet at different heating positions, the comprehensiveness of the heat dissipation test of the cabinet is improved, the accuracy of the heat dissipation test result of the cabinet can be further improved, the qualified rate of delivery of the cabinet is ensured, in addition, the cabinet heat dissipation testing device has a function of accurately positioning the position of the to-be-tested cabinet, and the testing efficiency is improved. The convenience and efficiency of the heat dissipation test of the to-be-tested cabinet are improved, and the labor intensity of workers is further reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of cabinet heat dissipation testing, and in particular relates to a cabinet heat dissipation testing device. Background Art

[0002] A cabinet is a housing used to accommodate and protect electronic devices, and is usually applied in fields such as data centers, server rooms, and network equipment. The main structure of the existing cabinet mainly consists of a cabinet door and a cabinet body for carrying electronic devices. A fan for heat dissipation ventilation is equipped at the top of the cabinet body, and a rectangular air inlet hole is provided at the bottom. This rectangular air inlet hole design not only ensures the air circulation inside the cabinet to achieve effective heat dissipation, but also facilitates the wiring connection of the electronic devices inside the cabinet. In addition, during the production process of the cabinet, in order to ensure that the heat dissipation performance of this batch of cabinets meets the standards, it is also necessary to conduct sampling tests on them through testing equipment. For example, the authorized patent number is CN107328807B, which discloses a cabinet heat dissipation testing device. And cabinets that pass the heat dissipation test can prevent damage to electronic devices caused by overheating, increased operating energy consumption, and potential safety accident risks.

[0003] When implementing the cabinet heat dissipation performance test, most of the existing testing equipment adopts an open testing method. This method is greatly affected by environmental factors to a certain extent. In particular, the temperature of the testing environment interferes with the cabinet heat dissipation effect. At the same time, the comprehensiveness of this testing process has defects. For example, the cabinet heat dissipation testing equipment fails to detect the temperature on the surface of the cabinet corners. Since the four corners of the cabinet are located at the edge of the ventilation path of the fan at the top of the cabinet, the air flow at this part is relatively poor. In addition, the cabinet corners are also the connection parts of the cabinet structure, which increases the thickness at this position, thereby affecting the heat exchange rate. This causes heat to easily accumulate at the cabinet corners, forming a high-temperature environment. When the electronic devices near the high-temperature environment inside the cabinet operate for a long time, problems such as poor operation, aging, or damage are likely to occur, thus affecting the accuracy of the cabinet heat dissipation test results and further affecting the pass rate of the cabinets leaving the factory; In addition, there are also certain inconveniences in the placement of the cabinet to be tested in the existing cabinet heat dissipation testing device. After the cabinet to be tested is placed, it is necessary to adjust the angle of the cabinet to be tested to ensure that the amount of air entering the bottom of the cabinet to be tested is the same as the amount of air entering the bottom of the comparison cabinet. This process not only affects the convenience and efficiency of the cabinet heat dissipation test, but also increases the labor intensity of the staff.

[0004] Therefore, a cabinet heat dissipation testing device is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a cabinet heat dissipation testing device for the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A cabinet heat dissipation test device, including a base, the upper surface of the base is fixedly connected with a U-shaped heat insulation plate, the upper surface of the base is fixedly connected with an air-conditioning component, the indoor unit of the air-conditioning component is fixedly connected with the inner wall of the top end of the U-shaped heat insulation plate, the inner wall of the U-shaped heat insulation plate is hermetically and movably connected with a heat insulation cover, the bottom end of the heat insulation cover is in sealed contact with the upper surface of the base, the inner wall of the top end of the U-shaped heat insulation plate is fixedly connected with an electric hydraulic rod, the moving end of the electric hydraulic rod is fixedly connected with the inner wall of the heat insulation cover, the upper surface of the base is fixedly connected with a hollow box, the side wall of the hollow box is fixedly communicated with an air supply fan, the top end of the hollow box is fixedly communicated with two air guide rings, the top ends of the two air guide rings are respectively movably connected with a cabinet to be tested and a comparison cabinet with qualified heat dissipation, the outer wall of the heat insulation cover is fixedly connected with a control component, an alarm and a touch panel component, the outer wall of the electric hydraulic rod is fixedly connected with a heat dissipation detection mechanism, the interiors of the cabinet to be tested and the comparison cabinet are both provided with a heating mechanism, and the upper surface of the base is fixedly connected with a limiting mechanism for positioning the cabinet to be tested; The heat dissipation detection mechanism includes a connecting block fixedly connected to the rod wall of the electric hydraulic rod, the lower surface of the connecting block is fixedly connected with a first multi-stage electric push rod, the bottom end of the first multi-stage electric push rod is fixedly connected with a fixing block, the outer wall of the fixing block is fixedly connected with a connecting frame, a rectangular installation hole is opened on the outer wall of the connecting frame, two groups of measuring components are movably connected to the hole wall of the rectangular installation hole, and the four temperature measuring ends of the two groups of measuring components are respectively located at the four side corners of the cabinet to be tested and the comparison cabinet.

[0007] In the above-mentioned cabinet heat dissipation test device, the measuring component includes a clamping block connected to the inner walls of two rectangular installation holes, extension plates and screw rods are respectively fixedly connected to the outer walls on both sides of the clamping block, a fixing nut is threadedly connected to the rod wall of the screw rod, and two temperature sensing components are respectively fixedly connected to the opposite sides of the two extension plates.

[0008] In the above-mentioned cabinet heat dissipation test device, a cushion ring is movably sleeved on the rod wall of the screw rod, and a protective ring is fixedly sleeved on the detection end of the temperature sensing component.

[0009] In the above-mentioned cabinet heat dissipation test device, the upper surface of the base, the inner walls of the U-shaped heat insulation plate and the heat insulation cover jointly form a cabinet heat dissipation closed test space.

[0010] In the above-mentioned cabinet heat dissipation test device, the heating mechanism includes a U-shaped placement mesh plate, the upper surface of the U-shaped placement mesh plate is fixedly connected with a second multi-stage electric push rod, and the top end of the second multi-stage electric push rod is fixedly connected with a constant temperature heating component.

[0011] In the above-mentioned cabinet heat dissipation test device, the limiting mechanism includes a hollow cylinder fixedly connected to the upper surface of the base. A first sealing ring is movably connected to the inner wall of the hollow cylinder. The inner wall of the first sealing ring is fixedly connected to a T-shaped rod in a sealed manner. The side end of the T-shaped rod passes through the outer wall of the hollow cylinder and is fixedly connected to the bottom outer wall of the heat insulation cover. A moving hole matching the T-shaped rod is formed in the outer wall of the hollow cylinder. A conduit is fixedly connected to the bottom outer wall of the hollow cylinder. The output end of the conduit is fixedly communicated with a hollow block. The top of the hollow block is fixedly connected to the lower surface of the base. Four steel pipes are fixedly communicated at the four corners of the upper surface of the hollow block. The top of the steel pipes passes through the surfaces of the base and the hollow box. A connecting cylinder is fixedly sleeved at the top of the steel pipes. The bottom end of the connecting cylinder is fixedly connected to the bottom inner wall of the hollow box. A second sealing ring is movably connected to the inner wall of the connecting cylinder in a sealed manner. A top rod is fixedly connected to the inner wall of the second sealing ring. The top ends of the four top rods all pass through the upper surfaces of the connecting cylinder and the hollow box and are commonly fixedly connected to a support frame. Arc-shaped positioning blocks matching the middle cabinet legs of the cabinet to be tested are fixedly connected at the four corners of the upper surface of the support frame. Four connecting holes hermetically matched with the outer walls of the top rods are formed in the upper surface of the hollow box. A hydraulic oil layer is filled in the hollow cylinder, the conduit, the hollow pipe and the plurality of steel pipes together.

[0012] In the above-mentioned cabinet heat dissipation test device, the size specifications of the comparison cabinet are the same as those of the cabinet to be tested. The external dimensions of the air guiding ring are the same as those of the rectangular air inlet holes at the bottom ends of the cabinet to be tested and the comparison cabinet. The distance between the two temperature sensing components on the extension plate is the same as the side width of the cabinet to be tested.

[0013] In the above-mentioned cabinet heat dissipation test device, windshields are provided at the tops of the cabinet to be tested and the comparison cabinet respectively. The side walls of the two windshields are fixedly connected to the inner walls of the U-shaped heat insulation plate and the heat insulation cover respectively.

[0014] Compared with the existing technology, the advantages of a cabinet heat dissipation test device are as follows: 1. By arranging the limiting mechanism and the hollow box, when the cabinet to be tested needs to conduct a heat dissipation test, first, the touch panel assembly and the control assembly send signals to control the electric hydraulic rod to extend. At this time, the electric hydraulic rod drives the heat insulation cover away from the U-shaped heat insulation plate and pushes the limiting mechanism to work. The limiting mechanism accurately places the cabinet to be tested on the air guiding ring, realizing the accurate positioning of the placement of the cabinet to be tested. Thus, it is not necessary for the staff to repeatedly adjust the angle of the cabinet to be tested, which saves time and effort. This mechanism enables the cabinet heat dissipation test device to have the function of accurately positioning the placement of the cabinet to be tested, improves the convenience and efficiency of the heat dissipation test of the cabinet to be tested, and reduces the labor intensity of the staff.

[0015] 2. With the U-shaped heat insulation plate, heat insulation cover and air conditioning component provided, when the electric hydraulic rod drives the heat insulation cover close to the U-shaped heat insulation plate, the cabinet to be tested is in the closed test space for cabinet heat dissipation. Then, the air conditioning component is used to adjust the test environment temperature of the closed test space for cabinet heat dissipation. Moreover, the closed test space for cabinet heat dissipation is isolated from the external environment, so that the cabinet to be tested is not interfered by the external environment during the heat dissipation test. In addition, the air conditioning component can adjust the temperature of the closed test space for cabinet heat dissipation, and at the same time enable the cabinet to be tested to conduct heat dissipation tests in a temperature environment of 18 - 26 degrees Celsius, so as to study the performance of the cabinet heat dissipation under different temperature conditions. This component enables the cabinet heat dissipation test device to have the function of resisting external environment interference during the test process, and can test the heat dissipation data of the cabinet to be tested at different test environment temperatures, thereby effectively improving the accuracy of the cabinet heat dissipation test results and ensuring the qualified rate of the cabinet when leaving the factory.

[0016] 3. With the heat dissipation detection mechanism, measurement component and heating mechanism provided, when the cabinet to be tested is placed stably, the two heating mechanisms are respectively placed inside the cabinet to be tested and the comparison cabinet and started, and at the same time the measurement component is installed. Moreover, the heat dissipation fans at the tops of the cabinet to be tested and the comparison cabinet are started. Then, the heat dissipation test is carried out on the cabinet to be tested and the comparison cabinet through the heat dissipation detection mechanism and the measurement component. In addition, the telescopic movement of the second multi-stage electric push rod can adjust the position of the constant temperature heating component, and thus it can be realized whether the heat dissipation of the cabinet meets the standard after heating at different positions of the test cabinet. If it is found that the heat dissipation of the cabinet to be tested is unqualified, the measurement component sends a signal to the alarm through the control component for alarm, prompting the staff that the heat dissipation of the cabinet to be tested is unqualified, and at the same time prompting the staff to urgently repair other cabinets of the same batch as the cabinet to be tested to ensure the qualified quality of the cabinet when leaving the factory. This mechanism enables the cabinet heat dissipation test device to not only have the ability to detect the temperature of the air discharged from the surface and top of the cabinet corner, but also have the function of testing the heat dissipation of the cabinet at different heating positions, improving the comprehensiveness of the cabinet heat dissipation test, and being able to improve the accuracy of the cabinet heat dissipation test results and ensure the qualified rate of the cabinet when leaving the factory. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a cabinet heat dissipation test device provided by the present invention; Figure 2 is a partially enlarged schematic structural diagram of a cabinet heat dissipation test device provided by the present invention; Figure 3 is a partially top-view schematic structural diagram of the heat dissipation detection mechanism in a cabinet heat dissipation test device provided by the present invention; Figure 4 is a schematic structural diagram of the measurement component in a cabinet heat dissipation test device provided by the present invention; Figure 5It is a schematic structural diagram of the first sealing ring in a cabinet heat dissipation test device provided by the present invention; Figure 6 It is a schematic structural diagram of a part of the limiting mechanism in a cabinet heat dissipation test device provided by the present invention.

[0018] In the figure: 1 base, 2 U-shaped heat insulation plate, 3 air conditioner assembly, 4 heat insulation cover, 5 electric hydraulic rod, 6 heat dissipation detection mechanism, 61 connecting block, 62 first multi-stage electric push rod, 63 fixed block, 64 connecting frame, 65 rectangular mounting hole, 7 measurement assembly, 71 clamping block, 72 extension plate, 73 screw rod, 74 fixing nut, 75 temperature sensing assembly, 8 heating mechanism, 81 U-shaped placement mesh plate, 82 second multi-stage electric push rod, 83 constant temperature heating assembly, 9 limiting mechanism, 91 hollow cylinder, 92 first sealing ring, 93 T-shaped rod, 94 conduit, 95 hollow block, 96 steel pipe, 97 connecting cylinder, 98 second sealing ring, 99 ejector rod, 910 support frame, 911 arc-shaped positioning block, 912 hydraulic oil layer, 10 hollow box, 11 air supply fan, 12 air guide ring, 13 cabinet to be tested, 14 comparison cabinet, 15 control assembly, 16 alarm, 17 touch panel assembly, 18 wind baffle, 19 cabinet heat dissipation airtight test space, 20 protective ring, 21 cushion ring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Such as Figures 1-6As shown in the figure, a cabinet heat dissipation test device includes a base 1. The upper surface of the base 1 is fixedly connected with a U-shaped heat insulation plate 2. The upper surface of the base 1 is fixedly connected with an air conditioner assembly 3. The upper surface of the base 1, the inner wall of the U-shaped heat insulation plate 2 and the inner wall of the heat insulation cover 4 jointly form a cabinet heat dissipation sealed test space 19. The cabinet heat dissipation sealed test space 19 is isolated from the external environment, which can improve the accuracy of the cabinet heat dissipation test. The indoor unit of the air conditioner assembly 3 is fixedly connected with the inner wall of the top end of the U-shaped heat insulation plate 2. The inner wall of the U-shaped heat insulation plate 2 is hermetically and movably connected with a heat insulation cover 4. The bottom end of the heat insulation cover 4 is in sealed contact with the upper surface of the base 1. The inner wall of the top end of the U-shaped heat insulation plate 2 is fixedly connected with an electric hydraulic rod 5. The moving end of the electric hydraulic rod 5 is fixedly connected with the inner wall of the heat insulation cover 4. The upper surface of the base 1 is fixedly connected with a hollow box 10. The side wall of the hollow box 10 is fixedly communicated with an air supply fan 11. The top end of the hollow box 10 is fixedly communicated with two air guide rings 12. The top ends of the two air guide rings 12 are respectively movably connected with a to-be-tested cabinet 13 and a comparison cabinet 14 with qualified heat dissipation. The outer wall of the heat insulation cover 4 is fixedly connected with a control component 15, an alarm 16 and a touch panel component 17. The outer wall of the electric hydraulic rod 5 is fixedly connected with a heat dissipation detection mechanism 6. The heat dissipation detection mechanism 6 includes a connection block 61 fixedly connected with the rod wall of the electric hydraulic rod 5. The lower surface of the connection block 61 is fixedly connected with a first multi-stage electric push rod 62. The bottom end of the first multi-stage electric push rod 62 is fixedly connected with a fixed block 63. The outer wall of the fixed block 63 is fixedly connected with a connection frame 64. A rectangular installation hole 65 is opened on the outer wall of the connection frame 64. The hole wall of the rectangular installation hole 65 is movably connected with two groups of measurement components 7. The four temperature measurement ends of the two groups of measurement components 7 are respectively located at the four side corners of the to-be-tested cabinet 13 and the comparison cabinet 14. The measurement component 7 includes a clamping block 71 connected with the inner walls of the two rectangular installation holes 65. The outer walls of both sides of the clamping block 71 are respectively fixedly connected with an extension plate 72 and a screw rod 73. The rod wall of the screw rod 73 is threadedly connected with a fixing nut 74. The opposite sides of the two extension plates 72 are respectively fixedly connected with two temperature sensing components 75. This mechanism enables the cabinet heat dissipation test device to not only have the ability to detect the temperature of the air discharged from the surface and top of the cabinet corners, but also have the function of testing the cabinet heat dissipation under different heat generation positions, improving the comprehensiveness of the cabinet heat dissipation test, and being able to improve the accuracy of the cabinet heat dissipation test results and ensure the qualified rate of the cabinets leaving the factory.

[0021] A cushion ring 21 is movably sleeved on the rod wall of the screw rod 73, and a protective ring 20 is fixedly sleeved on the detection end of the temperature sensing component 75. The protective ring 20 can protect the side end of the temperature sensing component 75 and reduce the interference when the temperature sensing component 75 measures the temperature. The size specifications of the comparison cabinet 14 are the same as those of the cabinet to be measured 13. The external dimensions of the air guiding ring 12 are the same as the dimensions of the rectangular air inlet holes at the bottom ends of the cabinet to be measured 13 and the comparison cabinet 14. The distance between the two temperature sensing components 75 on the extension plate 72 is the same as the side width of the cabinet to be measured. Wind shields 18 are provided at the tops of the cabinet to be measured 13 and the comparison cabinet 14. The side walls of the two wind shields 18 are respectively fixedly connected to the inner walls of the U-shaped heat insulation plate 2 and the heat insulation cover 4. The wind shield 18 can block the air discharged by the heat dissipation fan at the top of the cabinet and make the air approach the detection of the temperature sensing component 75.

[0022] Heating mechanisms 8 are provided inside both the cabinet to be measured 13 and the comparison cabinet 14. The heating mechanism 8 includes a U-shaped placement mesh plate 81. A second multi-stage electric push rod 82 is fixedly connected to the upper surface of the U-shaped placement mesh plate 81. The top end of the second multi-stage electric push rod 82 is fixedly connected to a constant temperature heating component 83. The heating mechanism 8 can simulate the heating situation of the electronic devices inside the cabinet and ensure the reliability of the cabinet heat dissipation measurement.

[0023] The upper surface of the base 1 is fixedly connected with a limiting mechanism 9 for positioning the cabinet under test 13. The limiting mechanism 9 includes a hollow cylinder 91 fixedly connected to the upper surface of the base 1. The inner wall of the hollow cylinder 91 is movably connected with a first sealing ring 92. The inner wall of the first sealing ring 92 is hermetically and fixedly connected with a T-shaped rod 93. The side end of the T-shaped rod 93 passes through the outer wall of the hollow cylinder 91 and is fixedly connected to the bottom outer wall of the heat insulation cover 4. A moving hole matching the T-shaped rod 93 is formed in the outer wall of the hollow cylinder 91. The bottom outer wall of the hollow cylinder 91 is fixedly connected with a conduit 94. The output end of the conduit 94 is fixedly communicated with a hollow block 95. The top of the hollow block 95 is fixedly connected to the lower surface of the base 1. Four corners of the upper surface of the hollow block 95 are fixedly communicated with steel pipes 96. The top of the steel pipes 96 passes through the surfaces of the base 1 and the hollow box 10. The top of the steel pipes 96 is fixedly sleeved with a connecting cylinder 97. The bottom of the connecting cylinder 97 is fixedly connected to the bottom inner wall of the hollow box 10. The inner wall of the connecting cylinder 97 is hermetically and movably connected with a second sealing ring 98. The inner wall of the second sealing ring 98 is fixedly connected with a jacking rod 99. The tops of the four jacking rods 99 all pass through the upper surfaces of the connecting cylinder 97 and the hollow box 10 and are commonly fixedly connected to a support frame 910. Four corners of the upper surface of the support frame 910 are fixedly connected with arc-shaped positioning blocks 911 matching the cabinet legs in the cabinet under test 13. Four connecting holes hermetically matching the outer walls of the jacking rods 99 are formed in the upper surface of the hollow box 10. The interior of the hollow cylinder 91, the conduit 94, the hollow pipe and the multiple steel pipes 96 are jointly filled with a hydraulic oil layer 912. This mechanism enables the cabinet heat dissipation test device to have the function of accurately positioning the placement of the cabinet under test 13, improves the convenience and efficiency of heat dissipation testing of the cabinet under test 13, and reduces the labor intensity of the staff.

[0024] The temperature sensing component 75 and the touch panel component 17 are electrically connected to the input end of the control component 15 through wires. The electric hydraulic rod 5, the first multi-stage electric push rod 62, the second multi-stage electric push rod 82, the constant temperature heating component 83 and the alarm 16 are all electrically connected to the output end of the control component 15 through wires. The temperature sensing component 75 is a temperature sensor. The temperature sensor can convert temperature into an electrical signal and input it into the control component 15. Then the control component 15 is in an electrical signal and displays data on the touch panel component 17. The constant temperature heating component 83 is a resistance wire heating plate. The constant temperature heating component 83 can continuously simulate the heat generation amount of electronic devices in the cabinet. The control component 15 is a plc controller. The plc controller can receive and send signals and control the actuator to work. The above-mentioned electrified devices and their electrical connections are all prior arts and are well-known to those skilled in the art, so they will not be elaborated here.

[0025] The operating principle of the present invention is described as follows: When the cabinet 13 to be tested needs to undergo a heat dissipation test, first, the touch panel assembly 17 and the control assembly 15 send signals to control the extension of the electro-hydraulic rod 5. At this time, the electro-hydraulic rod 5 drives the heat insulation cover 4 away from the U-shaped heat insulation plate 2 and pushes the T-shaped rod 93 of the limit mechanism 9. The T-shaped rod 93 pushes the hydraulic oil layer 912 through the first sealing ring 92, controls the hydraulic oil to be transported to the bottom end of the connecting cylinder 97 through the conduit 94, the hollow block 95, and the steel pipe 96. Then, the hydraulic oil layer 912 pushes the ejector rod 99 to rise through the second sealing ring 98, so that the support frame 910 is located above the measurement assembly 7, preventing the measurement assembly 7 from blocking the placement of the cabinet 13 to be tested on the support frame 910. Moreover, the four arc-shaped positioning blocks 911 closely adhere to the outer wall of the bottom legs of the cabinet 13 to be tested. Then, when the electro-hydraulic rod 5 retracts, the hydraulic oil layer 912 returns to the hollow cylinder 91 under the influence of the gravity extrusion of the cabinet 13 to be tested and the negative pressure generated by the movement of the T-shaped rod 93 and the first sealing ring 92. At the same time, the support frame 910 descends, so that the rectangular air inlet hole of the cabinet 13 to be tested is sleeved on a wind guiding ring 12 at the top of the hollow box 10, realizing the precise positioning of the placement of the cabinet 13 to be tested. Thus, it is not necessary for the staff to repeatedly adjust the angle of the cabinet 13 to be tested, saving time and effort. After the electro-hydraulic rod 5 drives the heat insulation cover 4 to approach the U-shaped heat insulation plate 2, the cabinet 13 to be tested is in the cabinet heat dissipation closed test space 19 composed of the U-shaped heat insulation plate 2, the heat insulation cover 4, and the base 1. Then, the air conditioning assembly 3 is started for 10 minutes of pretreatment to adjust the test environment temperature of the cabinet heat dissipation closed test space 19 by using the air conditioning assembly 3. Moreover, the cabinet heat dissipation closed test space 19 is isolated from the external environment, so that the cabinet 13 to be tested is not interfered by the external environment during the heat dissipation test. In addition, the air conditioning assembly 3 can adjust the temperature of the cabinet heat dissipation closed test space 19, and at the same time enable the cabinet 13 to be tested to conduct the heat dissipation test in a temperature environment of 18 - 26 degrees Celsius, so as to study the performance of the cabinet heat dissipation under different temperature conditions and improve the richness of the heat dissipation test data of the cabinet 13 to be tested. This mechanism enables the cabinet heat dissipation test device to have the function of resisting external environmental interference during the test process and can test the heat dissipation data of the cabinet 13 to be tested at different test environment temperatures, thereby effectively improving the accuracy of the cabinet heat dissipation test results to ensure the qualified rate of the cabinet when leaving the factory. Moreover, the cabinet heat dissipation test device also has the function of precise positioning of the position of the cabinet 13 to be tested, improving the convenience and efficiency of the heat dissipation test of the cabinet 13 to be tested, and reducing the labor intensity of the staff.

[0026] After the cabinet under test 13 is placed stably, place the two heating mechanisms 8 inside the cabinet under test 13 and the comparison cabinet 14 respectively. Then, by moving the extension plate 72 within the rectangular mounting hole 65, after the extension plate 72 moves, it is fastened by gaskets and fixing nuts 74, and ensure that the temperature measurement ends of the two measurement components 7 are respectively arranged at the bottom ends of the four side corners of the cabinet under test 13 and the comparison cabinet 14. Moreover, start the cooling fans at the tops of the cabinet under test 13 and the comparison cabinet 14, and start the air supply fan 11. The air supply fan 11 ensures that the air volumes entering the cabinet under test 13 and the comparison cabinet 14 are the same through the hollow box 10 and the air guide ring 12. After that, while adjusting the temperature of the cabinet heat dissipation airtight test space 19, start the constant temperature heating component 83 to generate heat for 10 minutes. The temperature at which the constant temperature heating component 83 generates heat simulates the heat generation amount of the electronic devices inside the cabinet, and ensures reliable heat simulation inside the cabinet. Then, start the first multi-stage electric push rod 62. The first multi-stage electric push rod 62 drives the connection frame 64 to slowly rise through the fixed block 63. While the connection frame 64 rises, it drives the measurement component 7 to move, and the temperature sensing component 75 of the measurement component 7 measures the temperatures on the surfaces of the four side corners of the cabinet under test 13 and the comparison cabinet 14. After the first multi-stage electric push rod 62 retracts to the maximum extent, the temperature sensing component 75 is located at the top of the cabinet. At this time, the air discharged by the top fan of the cabinet diffuses around due to the blocking of the wind deflector 18. At this time, the temperature of the diffused air is less affected by the air temperature inside the cabinet heat dissipation airtight test space 19, enabling the temperature sensing component 75 located at the top to detect the temperature of the air discharged from the top of the cabinet. In addition, the telescopic movement of the second multi-stage electric push rod 82 can adjust the position of the constant temperature heating component 83, thereby enabling the testing of whether the heat dissipation of the cabinet meets the standard after heating at different positions of the cabinet. If the surface heat dissipation of the cabinet under test 13 is qualified, the temperatures detected by the four temperature sensing components 75 on the surface of the cabinet under test 13 are consistent with the temperature data feedback by the four temperature sensing components 75 at the comparison cabinet 14, and the error between the data is small. On the contrary, the data feedback by the temperature sensing components 75 on the four sides of the cabinet under test 13 is much higher than the data feedback by the four temperature sensing components 75 at the comparison cabinet 14. Generally, if the internal temperature of the cabinet exceeds the range of 38 degrees Celsius, it indicates that the heat dissipation of the cabinet under test 13 is unqualified, and the control component 15 sends a signal to the alarm 16 to give an alarm, prompting the staff that the heat dissipation of the cabinet under test 13 is unqualified, and at the same time prompting the staff to urgently repair other cabinets of the same batch as the cabinet under test 13 to ensure that the quality of the cabinets leaving the factory is qualified. This mechanism enables the cabinet heat dissipation test device to not only have the ability to detect the temperatures of the cabinet corner surfaces and the discharged air at the top, but also have the function of testing the heat dissipation of the cabinet under different heating positions, improving the comprehensiveness of the cabinet heat dissipation test, and being able to improve the accuracy of the cabinet heat dissipation test results, and ensuring the qualification rate of the cabinets leaving the factory.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cabinet heat dissipation testing device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a U-shaped heat insulation board (2), the upper surface of the base (1) is fixedly connected to an air conditioning assembly (3), the indoor unit of the air conditioning assembly (3) is fixedly connected to the inner wall of the top end of the U-shaped heat insulation board (2), the inner wall of the U-shaped heat insulation board (2) is sealingly and movably connected to a heat insulation cover (4), the bottom end of the heat insulation cover (4) is in sealing contact with the upper surface of the base (1), the inner wall of the top end of the U-shaped heat insulation board (2) is fixedly connected to an electric hydraulic rod (5), the movable end of the electric hydraulic rod (5) is fixedly connected to the inner wall of the heat insulation cover (4), the upper surface of the base (1) is fixedly connected to a hollow box (10), and the side wall of the hollow box (10) is fixedly connected to the inner wall of the U-shaped heat insulation board (2). An air supply fan (11) is fixedly connected to the hollow box (10); the top of the hollow box (10) is fixedly connected to two air guide rings (12); the tops of the two air guide rings (12) are respectively movably connected to a cabinet to be tested (13) and a comparison cabinet (14) with qualified heat dissipation; the outer wall of the heat insulation cover (4) is fixedly connected to a control component (15), an alarm (16) and a touch panel component (17); the outer wall of the electric hydraulic rod (5) is fixedly connected to a heat dissipation detection mechanism (6); the cabinet to be tested (13) and the comparison cabinet (14) are both provided with a heating mechanism (8); and the upper surface of the base (1) is fixedly connected to a limit mechanism (9) for positioning the cabinet to be tested (13); The heat dissipation detection mechanism (6) comprises a connection block (61) fixedly connected to the rod wall of the electric hydraulic rod (5); a first multi-stage electric push rod (62) is fixedly connected to the lower surface of the connection block (61); a fixing block (63) is fixedly connected to the bottom end of the first multi-stage electric push rod (62); an outer wall of the fixing block (63) is fixedly connected to a connection frame (64); a rectangular mounting hole (65) is formed on the outer wall of the connection frame (64); two groups of measuring components (7) are movably connected to the hole wall of the rectangular mounting hole (65); four temperature measuring ends of the two groups of measuring components (7) are respectively located at the four corners of the cabinet to be tested (13) and the comparison cabinet (14).

2. A cabinet heat dissipation testing device according to claim 1, characterized in that: The measuring assembly (7) comprises a clamping block (71) connected to the inner walls of two rectangular mounting holes (65); the outer walls on both sides of the clamping block (71) are respectively fixedly connected to an extension plate (72) and a screw rod (73); the rod wall of the screw rod (73) is threadedly connected to a fixing nut (74); and two temperature sensing assemblies (75) are fixedly connected to opposite sides of the two extension plates (72).

3. A cabinet heat dissipation testing device according to claim 2, characterized in that: A backing ring (21) is movably sleeved on the rod wall of the screw rod (73), and a protective ring (20) is fixedly sleeved on the detection end of the temperature sensor assembly (75).

4. A cabinet heat dissipation testing device according to claim 1, characterized in that: The upper surface of the base (1), the U-shaped heat insulation board (2) and the inner wall of the heat insulation cover (4) together form a cabinet heat dissipation closed test space (19).

5. The cabinet heat dissipation testing device according to claim 1, characterized in that: The heating mechanism (8) comprises a U-shaped placement mesh plate (81), the upper surface of the U-shaped placement mesh plate (81) being fixedly connected to a second multi-stage electric push rod (82), and the top end of the second multi-stage electric push rod (82) being fixedly connected to a constant temperature heating component (83).

6. The cabinet heat dissipation testing device according to claim 1, characterized in that: The limiting mechanism (9) comprises a hollow cylinder (91) fixedly connected to the upper surface of the base (1); the inner wall of the hollow cylinder (91) is movably connected to a first sealing ring (92); the inner wall of the first sealing ring (92) is sealed and fixedly connected to a T-shaped rod (93); the side end of the T-shaped rod (93) passes through the outer wall of the hollow cylinder (91) and is fixedly connected to the outer wall of the bottom end of the heat insulation cover (4); the outer wall of the hollow cylinder (91) is provided with a movable hole that matches the T-shaped rod (93); the outer wall of the bottom end of the hollow cylinder (91) is fixedly connected to a conduit (94); the output end of the conduit (94) is fixedly connected to a hollow block (95); the top end of the hollow block (95) is fixedly connected to the lower surface of the base (1); the four corners of the upper surface of the hollow block (95) are fixedly connected to steel pipes (96); the top end of the steel pipe (96) passes through the surface of the base (1) and the hollow box (10). The top end of the steel tube (96) is fixedly sleeved with a connecting tube (97), the bottom end of the connecting tube (97) is fixedly connected to the inner wall of the bottom end of the hollow box (10), the inner wall of the connecting tube (97) is sealingly and movably connected to a second sealing ring (98), the inner wall of the second sealing ring (98) is fixedly connected to a push rod (99), the top ends of the four push rods (99) all pass through the connecting tube (97) and the upper surface of the hollow box (10), and are fixedly connected to a support frame (910), the four corners of the upper surface of the support frame (910) are fixedly connected to arc-shaped positioning blocks (911) that match the cabinet legs of the cabinet (13) to be tested, the upper surface of the hollow box (10) is provided with four connecting holes that are sealingly matched with the outer wall of the push rod (99), and the interior of the hollow tube (91), the conduit (94), the hollow tube and the plurality of steel tubes (96) are collectively filled with a hydraulic oil layer (912).

7. A cabinet heat dissipation testing device according to claim 2, characterized in that: The dimensions of the comparison cabinet (14) are consistent with those of the cabinet to be tested (13); the outer dimensions of the air guide ring (12) are consistent with the dimensions of the rectangular air inlet holes at the bottom ends of the cabinet to be tested (13) and the comparison cabinet (14); and the spacing between the two temperature sensor assemblies (75) on the extension plate (72) is consistent with the side width of the cabinet to be tested.

8. The cabinet heat dissipation testing device according to claim 1, characterized in that: The tops of the cabinet to be tested (13) and the comparison cabinet (14) are both provided with wind shields (18), and the side walls of the two wind shields (18) are respectively fixedly connected to the inner walls of the U-shaped heat insulation board (2) and the heat insulation cover (4).

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