Hard disk heat test tool and hard disk heat test method

Abstract

The embodiment of the application provides a hard disk heat test tool and a hard disk heat test method, the hard disk heat test tool comprises a test air duct, the test air duct comprises an air duct shell, the air duct shell has an inner cavity for placing a hard disk to be tested; an air inlet or an air outlet of the inner cavity is used for being opposite to an interface end of the hard disk to be tested, an inner wall of the air duct shell is used for being between a first end surface of the hard disk to be tested and having a first gap for air passing, and the inner wall of the air duct shell is used for being between a second end surface of the hard disk to be tested and having a second gap for air passing, and the first end surface and the second end surface are sequentially distributed along a thickness direction of the hard disk to be tested. The hard disk heat test tool can test all hard disks to be tested, and does not need to perform heat test on each hard disk to be tested in a server, that is, does not depend on the server and does not need to build a test environment, so that hard disk heat test is simplified, test cost of the hard disk heat test is reduced, and test efficiency of the hard disk heat test is improved.

Description

Technical Field

[0001] This application relates to the field of hard disk testing, and in particular to a hard disk thermal testing fixture and a hard disk thermal testing method. Background Technology

[0002] Currently, to ensure the proper functioning of hard drives in server systems, hard drive compatibility testing is necessary. This compatibility testing includes a thermal test, which assesses the hard drive's heat dissipation capabilities.

[0003] Completing hard drive thermal testing requires manually setting up a test environment. The process involves manually selecting a server, installing the hard drives in the least well-ventilated slots within that server system, and ensuring the server system operates at full hard drive capacity, maximum CPU power consumption and load, and maximum memory capacity and quantity. After setting up the test environment, the server system undergoes a full-stress test to assess the hard drive's thermal performance.

[0004] The aforementioned test environment setup is complex and costly, resulting in complex and costly hard drive thermal testing. Furthermore, the time required for hard drive thermal testing due to the setup of the test environment leads to low testing efficiency.

[0005] Application content

[0006] This application provides a hard disk thermal testing fixture and a hard disk thermal testing method to simplify hard disk thermal testing, reduce testing costs, and improve testing efficiency.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] In a first aspect, this application provides a hard disk thermal testing fixture, including a test air duct. The test air duct includes an air duct shell, which has an inner cavity for placing the hard disk under test. An air inlet or outlet of the inner cavity is positioned opposite to the interface end of the hard disk under test. The inner wall of the air duct shell has a first gap for air passage between it and a first end face of the hard disk under test, and a second gap for air passage between it and a second end face of the hard disk under test. The first end face and the second end face are distributed sequentially along the thickness direction of the hard disk under test.

[0009] As can be seen from the above, the aforementioned hard drive thermal testing fixture can test all hard drives under test, revealing the relative heat dissipation capabilities of each. A single hard drive can be selected as a benchmark, ensuring its thermal performance is compatible with the server. The heat dissipation capabilities of the benchmark hard drive are then compared to those of other hard drives under test. This benchmark provides a basis for determining whether the heat dissipation capabilities of other hard drives are compatible with the server. This eliminates the need for thermal testing of each hard drive on the server, simplifying the process, reducing testing costs, and improving testing efficiency.

[0010] In one possible implementation, the test air duct further includes a stop member disposed within the air duct housing, and the stop member is used to contact the hard drive under test and confine the hard drive under test to the test position of the air duct housing.

[0011] As can be seen from the above, the stop device ensures that each hard drive under test is in the same position within the airflow casing during the test, thus improving the accuracy of the test results.

[0012] In one possible implementation, the height direction of the air duct casing is aligned with the thickness direction of the hard drive under test.

[0013] As can be seen from the above, the design makes the state of the hard drive under test in the test airflow channel more closely resemble its state in the server system, thus improving the accuracy of the test results.

[0014] In one possible implementation, the test air duct further includes a support member disposed inside the air duct housing, and the support member is used to support the hard drive under test so that there is a first gap between the inner wall of the air duct housing and the first end face, the first end face being lower than the second end face.

[0015] As can be seen from the above, the support component ensures that there is a first gap between the inner wall of the air duct shell and the first end face to be tested.

[0016] In one possible implementation, the top of the air duct housing is provided with an operating hole and a sealing cover; wherein, the operating hole is used to allow a person's hand or auxiliary tool to reach into the air duct housing and push out the hard drive to be tested, and the sealing cover is detachably used to close the operating hole.

[0017] As can be seen from the above, when the hard drive under test needs to be removed from the air duct housing, the sealing cover is released from the operating hole. The operator's hand or auxiliary tool is inserted into the air duct housing through the operating hole and pushed to remove the hard drive under test from the air duct housing, facilitating its removal. After the hard drive under test is removed from the air duct housing, the sealing cover closes the operating hole to ensure that the hard drive under test can be subjected to thermal testing.

[0018] In one possible implementation, the hard disk thermal testing fixture further includes a wind supply device for communicating with the air duct housing and supplying the air required for the test to the air duct housing, and the air volume supplied by the wind supply device is adjustable; or, the air duct housing is also used to connect with a wind tunnel for supplying the air required for the test to the air duct housing, and the air volume supplied by the wind tunnel is adjustable.

[0019] As can be seen from the above, the air supply device or wind tunnel is used to provide the air required for testing to the air duct shell. The air volume provided by the air supply device and the air volume provided by the wind tunnel are adjustable, which facilitates thermal testing of the hard drive.

[0020] In one possible implementation, the air supply device includes a transmission duct housing and a fan; wherein the fan is disposed in the transmission duct housing, the first end of the transmission duct housing has an opening for air to enter and exit, and the second end of the transmission duct housing is used to communicate with the duct housing; the fan speed is adjustable, or the air supply device further includes a flow regulating device disposed in the transmission duct housing and capable of regulating the air volume.

[0021] In one possible implementation, the flow regulating device is a flow regulating valve; or, the flow regulating device is a flow regulating orifice plate, which is detachably disposed within the transmission duct housing.

[0022] As can be seen from the above, changing the orifice ratio of the flow regulating orifice plate can change the air volume, and the flow regulating orifice plate can be replaced when the air volume needs to be changed. Moreover, the flow regulating orifice plate increases the air resistance of the entire fixture, making the air resistance change caused by individual differences of the hard drive under test relatively small, reducing the impact of individual differences of the hard drive under test on the air resistance of the entire fixture, thereby improving the accuracy of the test results.

[0023] In one possible implementation, the air supply device further includes a rectifier grille disposed within the transmission duct housing.

[0024] As can be seen from the above, the rectifier grille reduces the turbulence of the airflow, making the air velocity inside the air duct housing more uniform, improving the heat dissipation uniformity of the hard drive under test, and thus improving the accuracy of the test results. Moreover, the rectifier grille supports airflow from the test air duct to the air supply device, and also supports airflow from the air supply device to the test air duct, which facilitates the use of hard drive thermal testing fixtures.

[0025] In one possible implementation, the transmission duct housing includes a mounting housing and a guide housing; wherein, the fan is disposed in the mounting housing, a first end of the guide housing is connected to the mounting housing, a second end of the guide housing is connected to the duct housing, and the guide housing gradually narrows from its inlet to its outlet.

[0026] As can be seen from the above, the air guide shell can adjust the wind speed, that is, the air guide shell can adjust the air volume.

[0027] In one possible implementation, the hard drive thermal testing fixture also includes a base, and the air supply device and the test air duct are both disposed on the base.

[0028] In one possible implementation, the hard drive thermal testing fixture further includes a hard drive detector and a control module; wherein, the hard drive detector is used to detect whether the test position of the test air duct has a hard drive under test; if the hard drive detector determines that the test position of the test air duct has a hard drive under test, the control module is used to control the test instrument to pressurize the hard drive under test and to control the air supply device to sequentially provide multiple air volumes of different amounts.

[0029] As can be seen from the above, the hard drive thermal testing fixture realizes automatic pressurization of the hard drive under test through the hard drive detector and control module, and the air supply device automatically provides multiple air volumes of different sizes, simplifying the operator's operation.

[0030] In one possible implementation, the hard drive thermal testing fixture also includes a testing instrument for connecting to the interface of the hard drive under test and applying pressure to the hard drive under test.

[0031] As can be seen from the above, the hard drive thermal testing fixture applies pressure to the hard drive under test using testing instruments, which facilitates both pressure application and the use of the hard drive thermal testing fixture.

[0032] In one possible implementation, the hard drive thermal testing fixture further includes: a first temperature sensor for detecting the temperature of the air blown toward the hard drive under test; and a second temperature sensor or testing instrument for detecting the temperature of the hard drive under test, and for connecting to the interface of the hard drive under test, applying pressure to the hard drive under test, and acquiring the temperature of the hard drive under test.

[0033] In one possible implementation, the hard disk thermal testing fixture further includes: a data processing device; the data processing device is used to store the model of the hard disk under test, the temperature t1 of the hard disk under test at each airflow rate, and the temperature t of the airflow blowing onto the hard disk under test at each airflow rate; the data processing device is also used to obtain the maximum incoming flow temperature T supported by the hard disk under test at each airflow rate based on the upper limit of the operating temperature t0 of the hard disk under test, the temperature t1 of the hard disk under test at each airflow rate, the temperature t2 of the airflow blowing onto the hard disk under test at each airflow rate, and T = t0 - t1 + t2; or, the data processing device is used to store the model of the hard disk under test, the temperature t2 of the airflow blowing onto the hard disk under test when the temperature t1 of the hard disk under test is equal to the upper limit of the operating temperature t0 of the hard disk under test at each airflow rate; the data processing device is also used to obtain the maximum incoming flow temperature T supported by the hard disk under test at each airflow rate based on the temperature t2 of the airflow blowing onto the hard disk under test when the temperature t1 of the hard disk under test is equal to the upper limit of the operating temperature t0 of the hard disk under test at each airflow rate, and T = t2.

[0034] As can be seen from the above, the data processing device automatically acquires the maximum incoming flow temperature T supported by the hard drive under test for each airflow rate, reducing the workload of the operator and avoiding the impact of operator error on the accuracy of the test results.

[0035] In one possible implementation, the data processing device is further configured to plot and display a hard drive heat dissipation capability curve of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate.

[0036] As can be seen from the above, the data processing device automatically draws and displays the hard drive heat dissipation capacity curve, which enables a more intuitive display of the test results.

[0037] Secondly, this application provides a hard disk thermal testing method, which uses the hard disk thermal testing fixture proposed in the first aspect or any possible implementation to perform thermal testing on the hard disk under test. The hard disk thermal testing method includes: detecting whether the test position of the test air duct has the hard disk under test; if the test position has the hard disk under test, pressurizing the hard disk under test and sequentially providing air of different air volumes into the test air duct; obtaining the model of the hard disk under test, detecting the temperature t1 of the hard disk under test at each air volume and the temperature t2 of the air blown onto the hard disk under each air volume; and according to the upper limit value t0 of the operating temperature of the hard disk under test, each... The maximum incoming flow temperature T supported by the hard drive under test at each airflow rate is obtained by considering the temperature t1 of the hard drive under test at each airflow rate, the temperature t2 of the airflow blowing onto the hard drive under test at each airflow rate, and T = t0 - t1 + t2. Alternatively, the temperature t2 of the airflow blowing onto the hard drive under test is adjusted at each airflow rate until the temperature t1 of the hard drive under test is equal to the upper limit of the operating temperature t0 of the hard drive under test. Based on the temperature t2 of the airflow blowing onto the hard drive under test when the temperature t1 of the hard drive under test is equal to the upper limit of the operating temperature t0 of the hard drive under test at each airflow rate, and T = t2, the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate is obtained.

[0038] As can be seen from the above, the hard disk thermal testing method in this application uses the hard disk thermal testing fixture proposed in the first aspect or any possible implementation to perform thermal testing on the hard disk under test. That is, the hard disk thermal testing method in this application can be understood as the method of using the hard disk thermal testing fixture. Therefore, the hard disk thermal testing method using this hard disk thermal testing fixture also has all the above-mentioned technical effects, which will not be repeated here.

[0039] In one possible implementation, the hard drive thermal testing method further includes: plotting and displaying a hard drive heat dissipation capability curve of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate.

[0040] As can be seen from the above, the hard drive thermal testing method uses a hard drive heat dissipation capacity curve to display the test results more intuitively. Attached Figure Description

[0041] Figure 1a An isometric view of the hard disk thermal testing fixture provided in the embodiments of this application;

[0042] Figure 1b A top view of the hard disk thermal testing fixture provided in the embodiments of this application;

[0043] Figure 1c for Figure 1b Sectional view along axis AA;

[0044] Figure 2a This is a schematic diagram showing the hard drive under test located within the hard drive thermal testing fixture provided in this embodiment of the application.

[0045] Figure 2b This is a schematic diagram showing the hard drive under test located inside the hard drive thermal testing fixture provided in this application embodiment, with part of the air duct shell, part of the airflow guide shell, and part of the mounting shell hidden.

[0046] Figure 3 This is a graph showing the heat dissipation capacity of a hard drive measured using the hard drive thermal testing fixture provided in the embodiments of this application.

[0047] Figure 4a A schematic diagram of a data processing device in a hard disk thermal testing fixture provided in an embodiment of this application;

[0048] Figure 4b This is another schematic diagram of the data processing device in the hard disk thermal testing fixture provided in the embodiments of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0050] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0051] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0052] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0053] Currently, in order to ensure that the hard drive functions properly in the server system, it is necessary to test the hard drive's compatibility.

[0054] As server systems consume increasingly higher power and hard drives become more powerful, hard drive heat dissipation is becoming a bottleneck. Therefore, hard drive thermal testing is being incorporated into hard drive compatibility testing, specifically testing the hard drive's heat dissipation capabilities.

[0055] Completing hard drive thermal testing requires manually setting up a test environment. The process involves manually selecting a server, installing the hard drives in the least well-ventilated slot within that server system, and ensuring the server system operates at full hard drive capacity, maximum CPU power consumption and load, and maximum memory capacity and quantity. After setting up the test environment, the server system undergoes a full-stress test, and the hard drive temperature is monitored. If the hard drive temperature exceeds the normal operating temperature range, the hard drive's cooling capacity is insufficient; if the hard drive temperature remains within the normal operating temperature range, the hard drive's cooling capacity is sufficient.

[0056] The aforementioned test environment setup is complex and costly, resulting in complex and expensive hard drive thermal testing. Furthermore, the time-consuming setup process leads to low efficiency. Therefore, simplifying, reducing, and improving the efficiency of hard drive thermal testing is the objective of the technical solutions provided in this application.

[0057] To achieve the above objectives, embodiments of this application provide a hard disk thermal testing fixture.

[0058] Figures 1a-1c The structure of the hard disk thermal testing fixture is shown. (Example) Figure 1a As shown, the hard disk thermal testing fixture 100 includes: a test air duct 10, an air supply device 20, and a base 30, wherein the test air duct 10 and the air supply device 20 are both disposed on the base 30.

[0059] The base 30 includes a base plate 31, and the test air duct 10 and the air supply device 20 are both disposed on the base plate 31. Of course, the base 30 can be other structures, and this embodiment does not limit it.

[0060] In some embodiments, the hard disk thermal testing fixture 100 may exclude the base 30, and the test air duct 10 and the air supply device 20 may be placed in a certain position. This embodiment does not limit this.

[0061] The test air duct 10 includes an air duct housing 11, which has an inner cavity for placing the hard drive under test.

[0062] The air supply device 20 is used to communicate with the test air duct 10 and provide the air required for testing to the test air duct 10. Since the air duct housing 11 has an inner cavity for placing the hard drive under test, it can be understood that the air supply device 20 is used to communicate with the air duct housing 11 and provide the air required for testing to the air duct housing 11. The air supply device 20 includes: a mounting housing 21, a guide housing 22, and a fan (not shown in the figure). The fan is mounted on the mounting housing 21, one end of which has an opening to ensure air intake or exhaust; the other end of the mounting housing 21 is connected to one end of the guide housing 22, and the other end of the guide housing 22 is used to communicate with the air duct housing 11.

[0063] In some embodiments, the mounting housing 21 and the flow guide housing 22 may both be referred to as part of the transmission duct housing. In this case, the transmission duct housing may not include the flow guide housing 22; in this case, the transmission duct housing may only include the mounting housing 21, which is connected to the duct housing 11.

[0064] To facilitate the movement of the air supply device 20, the air supply device 20 also includes a handle 23, which is disposed on the outside of the mounting housing 21. In some embodiments, the handle 23 is disposed at the top of the mounting housing 21. It should be noted that the top of the mounting housing 21 is defined as follows: in the height direction of the mounting housing 21, i.e. Figure 1a The higher end of the mounting housing 21 is shown in the height direction.

[0065] The specific shape of the guide shell 22 is selected according to the actual situation. In some embodiments, the guide shell 22 has a uniform cross-section structure, that is, the cross-section of any two positions in the guide shell 22 is the same in the wind direction. It can be understood that the cross-section of the guide shell 22 is perpendicular to the wind direction.

[0066] In some embodiments, the guide shell 22 has a tapered structure along the wind direction, meaning it tapers from its inlet to its outlet. This allows the guide shell 22 to adjust the wind speed, i.e., adjust the airflow. In this case, the base 30 also includes a duct mounting portion 32 and a guide shell mounting portion 33, both disposed on the base plate 31; wherein both the duct mounting portion 32 and the guide shell mounting portion 33 protrude from the base plate 31, the duct shell 11 is disposed on the duct mounting portion 32, the guide shell 22 is disposed on the guide shell mounting portion 33, and the mounting shell 21 is disposed on the base plate 31. This facilitates the installation of the duct shell 11, the guide shell 22, and the mounting shell 21. The specific structure of the duct mounting portion 32 and the guide shell mounting portion 33 can be selected according to specific circumstances, and this embodiment does not limit this.

[0067] In other embodiments, the guide shell 22 may also be a gradually expanding structure along the wind direction, that is, the guide shell 22 gradually expands from the inlet to the outlet. In this case, the base 30 needs to be adjusted accordingly to ensure the installation of the duct shell 11, the guide shell 22, and the mounting shell 21. Of course, the guide shell 22 may also have other structures, and is not limited to the aforementioned gradually expanding, contracting, and constant cross-section structures.

[0068] During the testing of the hard drive under test, it is necessary to test its heat dissipation capacity under different airflow rates. To meet this testing requirement, the airflow provided by the air supply device 20 needs to be adjustable, which can also be understood as the airflow speed provided by the air supply device 20 needing to be adjustable.

[0069] On the one hand, the airflow can be adjusted via the fan, meaning the fan speed is adjustable. It should be noted that the higher the fan speed, the greater the airflow provided by the fan; the lower the fan speed, the smaller the airflow provided by the fan.

[0070] On the other hand, the air volume can be adjusted by a flow regulating device, that is, a flow regulating device is provided inside the guide shell 22 or the mounting shell 21. This flow regulating device can be a flow regulating valve, a flow regulating orifice plate, or other components that can realize flow regulation.

[0071] Different models of hard drives under test exhibit individual differences. When these individual hard drives are placed within the airflow enclosure 11, the resulting variations in airflow resistance within the entire fixture lead to lower test accuracy. To address this issue, such as... Figure 1b and Figure 1c As shown, the flow regulation device is a flow regulation orifice plate 24, which is detachably installed inside the mounting housing 21. Thus, changing the orifice ratio of the flow regulation orifice plate 24 changes the airflow; when a change in airflow is needed, the flow regulation orifice plate 24 can be replaced. Furthermore, the flow regulation orifice plate 24 increases the overall air resistance of the fixture, making the air resistance variation caused by individual differences among the 200 hard drives under test relatively small, reducing the impact of individual differences among the 200 hard drives on the overall air resistance of the fixture, thereby improving the accuracy of the test results.

[0072] like Figure 1c As shown, a fan mounting plate 211 for mounting a fan is provided inside the mounting housing 21. The fan mounting plate 211 is located on the side of the flow regulating orifice plate 24 away from the air duct housing 11.

[0073] In some embodiments, the flow regulating orifice plate 24 is detachably disposed within the flow guide housing 22, and is not limited to the case where the flow regulating orifice plate 24 is disposed within the mounting housing 21.

[0074] like Figure 1c As shown, the air supply device 20 also includes a rectifier grille 25, which is disposed within the airflow guide shell 22. The rectifier grille 25 reduces the turbulence of the airflow, making the air velocity within the air duct shell 11 more uniform, improving the heat dissipation uniformity of the hard drive under test, thereby improving the accuracy of the test results. Moreover, the rectifier grille 25 supports airflow from the test air duct 10 to the air supply device 20, and also supports airflow from the air supply device 20 to the test air duct 10, thus facilitating the use of the hard drive thermal testing fixture.

[0075] The specific location of the rectifier grille 25 within the guide shell 22 can be selected according to actual conditions. To improve the rectification effect, the rectifier grille 25 is located at the end of the guide shell 22 that communicates with the air duct shell 11.

[0076] If the air supply device 20 does not include the guide shell 22, the rectifier grille 25 may be disposed within the mounting shell 21. To improve the rectification effect, the rectifier grille 25 is located at the end of the mounting shell 21 that communicates with the air duct shell 11.

[0077] In the test air duct 10, the air duct shell 11 has an inner cavity for air supply. For example... Figure 1c As shown, air inlets 111 are provided at both ends of the inner cavity, that is, air inlets 111 are provided at both ends of the air duct shell 11. The air inlet 111 at one end of the air duct shell 11 is an air inlet, and the air inlet 111 at the other end of the air duct shell 11 is an air outlet, so that air can enter and exit the inner cavity of the air duct shell 11. Figure 1c In this configuration, the air inlet 111 at the left end of the duct housing 11 is an air inlet, and the air inlet 111 at the right end of the duct housing 11 is an air outlet; or, the air inlet 111 at the right end of the duct housing 11 is an air inlet, and the air inlet 111 at the left end of the duct housing 11 is an air outlet. It is understood that the air inlet or air outlet of the duct housing 11 is connected to the air supply device 20.

[0078] Combination Figure 1c and Figure 2a As shown, the hard drive under test 200 can enter the inner cavity of the air duct housing 11 through the air vent 111. To more closely resemble the state of the hard drive under test 200 in a server system, the air vent 111 of the air duct housing 11 is positioned opposite the interface end 203 of the hard drive under test 200. That is, the air inlet of the air duct housing 11 is positioned opposite the interface end 203 of the hard drive under test 200, or the air outlet of the air duct housing 11 is positioned opposite the interface end 203 of the hard drive under test 200. It can be understood that the interface end 203 of the hard drive under test 200 faces the air inlet or outlet of the air duct housing 11; the interface end 203 of the hard drive under test 200 is the end of the hard drive under test 200 that has an interface. Figure 2a As shown, the interface of interface 203 is connected to the interface cable 300.

[0079] In some embodiments, the interface of the hard drive under test 200 is not facing the air inlet or outlet of the air duct housing 11, and is not limited to... Figure 2a The placement of the hard drive 200 under test is shown.

[0080] To better reflect the state of the hard drive 200 under test in a server system and improve the accuracy of the test results, the height direction of the air duct casing 11 is aligned with the thickness direction of the hard drive 200 under test. It should be noted that the height direction of the air duct casing 11 is... Figure 1c and Figure 2a The height direction is shown in the figure. Of course, the height direction of the air duct shell 11 can also be different from the thickness direction of the hard drive 200 under test. For example, the height direction of the air duct shell 11 can be perpendicular to the thickness direction of the hard drive 200 under test.

[0081] After each hard drive 200 under test is completed, it needs to be removed from the air duct housing 11. To facilitate the removal of the hard drive 200 from the air duct housing 11, the top of the air duct housing 11 is provided with an operation hole 112 and a sealing cover 14 for removably closing the operation hole 112. It can be understood that when the sealing cover 14 is in the state of closing the operation hole 112, the sealing cover 14 and the air duct housing 11 are sealed together to prevent airflow inside the air duct housing 11 from escaping from the operation hole 112.

[0082] In actual operation, when the hard drive under test 200 needs to be removed from the air duct housing 11, the sealing cover 14 is released from the operation hole 112. The operator's hand or auxiliary tool is inserted into the air duct housing 11 through the operation hole 112 and pushed to push the hard drive under test 200 out of the air duct housing 11. After the hard drive under test 200 is pushed out of the air duct housing 11, the sealing cover 14 closes the operation hole 112.

[0083] In some embodiments, the first end of the sealing cover 14 is rotatably connected to the air duct shell 11, and the second end of the sealing cover 14 is detachably connected to the air duct shell 11. The first end of the sealing cover 14 and the air duct shell 11 can be rotatably connected via a pivot, crease, or other structure; the second end of the sealing cover 14 and the air duct shell 11 can be detachably connected via snap-fit, adhesive, adsorption, or other means.

[0084] To facilitate the connection between the second end of the sealing cover 14 and the air duct housing 11, the air duct housing 11 includes a support portion 113, which is disposed on the wall of the operating hole 112 and is used to support the second end of the sealing cover 14. That is, the support portion 113 and the sealing cover 14 are detachably connected. This facilitates the installation of the sealing cover 14.

[0085] The shape and size of the support portion 113 can be selected according to actual needs, and this embodiment does not limit this. For example, the support portion 113 is U-shaped and the U-shaped opening faces the first end of the closed cover 14.

[0086] In some embodiments, the closing cover 14 may be used to detachably close the operating hole 112 through other structures, and is not limited to the structures described above.

[0087] The size and shape of the operating hole 112 can also be selected according to the actual situation. The size and shape of the sealing cover 14 are adapted to the size and shape of the operating hole 112.

[0088] The cooling effect of the hard drive 200 under test varies depending on its position within the airflow housing 11. To improve the accuracy of the test results, each hard drive 200 under test must be positioned in the same location within the airflow housing 11 during the test, i.e., the test position. To achieve this, the test airflow 10 also includes a stop member 12, which is disposed within the airflow housing 11 and serves to contact the hard drive 200 under test and confine it to the test position within the airflow housing 11.

[0089] During the process of the hard drive under test 200 entering the air duct housing 11, the non-interface end 204 of the hard drive under test 200, which is opposite to the interface end 203, enters the air duct housing 11 first, followed by the interface end 203. When the non-interface end 204 of the hard drive under test 200 abuts against the stop member 12, it indicates that the hard drive under test 200 has reached the test position.

[0090] There may be one or more stop members 12. In some embodiments, there are two stop members 12, one stop member is used to contact one side of the hard disk 200 under test, and the other stop member 12 is used to contact the other side of the hard disk 200 under test, which improves the reliability of the limit.

[0091] The shape and size of the stop member 12 can be designed according to the actual situation, and this embodiment does not limit it.

[0092] The inner cavity shape of the aforementioned air duct shell 11 is designed to be identical to that of the hard drive under test 200; that is, both the inner cavity of the air duct shell 11 and the hard drive under test 200 are cuboid structures. This ensures that the heat dissipation of the hard drive under test 200 during testing more closely resembles its heat dissipation in a server system, thus improving the accuracy of the test results. Of course, the inner cavity of the air duct shell 11 can be of other shapes and is not limited to the shape of the hard drive under test 200.

[0093] During the test, all or most of the airflow is required to flow through the outside of the hard drive under test 200. Therefore, there is a gap between the inner wall of the air duct housing 11 and the outer surface of the hard drive under test 200.

[0094] like Figure 2a and Figure 2b As shown, the two surfaces of the hard drive under test 200, distributed sequentially along its thickness direction, are a first end face 201 and a second end face 202. The first end face 201 is lower than the second end face 202. There is a first gap δ1 between the inner wall of the air duct shell 11 and the first end face 201, and a second gap δ2 between the inner wall of the air duct shell 11 and the second end face 202. In this way, the heat dissipation of the hard drive under test 200 during the test is closer to the heat dissipation of the hard drive under test 200 in the server system, thus improving the accuracy of the test results.

[0095] The first gap δ1 and the second gap δ2 can be equal or unequal. The specific values ​​of the first gap δ1 and the second gap δ2 can be selected with reference to the situation of the hard drive 200 under test in the server system. For example, the first gap δ1 and the second gap δ2 are both 1.5mm.

[0096] To ensure a first gap δ1 between the inner wall of the air duct housing 11 and the first end face 201 to be tested, the test air duct 10 also includes a support member 13. This support member 13 is disposed on the bottom wall of the air duct housing 11 and supports the hard drive 200 to ensure the first gap δ1 between the inner wall of the air duct housing 11 and the first end face 201. It can be understood that the hard drive 200 to be tested is placed on the top surface of the support member 13. In this case, the thickness of the support member 13 is the specific value of the first gap δ1.

[0097] In some embodiments, the support member 13 may also be provided on other inner walls of the air duct housing 11, for example, the support member 13 may be provided on the side wall of the air duct housing 11.

[0098] In some embodiments, there are two support members 13. One support member 13 supports one side of the hard drive 200 under test, and the other support member 13 supports the other side of the hard drive 200 under test, which improves the stability of the support members 13 supporting the hard drive 200 under test. Moreover, this support method is closer to the state of the hard drive 200 under test in the server system. It should be noted that there is a preset distance between the two support members 13, and the two support members 13, the bottom wall of the air duct shell 11, and the first end face 201 of the hard drive 200 under test form a channel for air supply.

[0099] Of course, there can be one or more support members 13, and it is not limited to the case where there are two support members 13.

[0100] The shape and size of the support member 13 are designed according to the actual situation, and this embodiment does not limit them.

[0101] When the test air duct 10 includes the support member 13, the stop member 12 is connected to one end of the support member 13. The support member 13 and the stop member 12 can be an integral structure or a separate structure, depending on the actual situation.

[0102] The interface of the hard drive 200 under test needs to be connected to the testing instrument. In some embodiments, the above-mentioned hard drive thermal testing fixture also includes a testing instrument used to apply pressure to the hard drive 200 under test. The testing instrument can be a server or a terminal. The terminal can be an electronic device such as a mobile phone, tablet computer, personal digital assistant (PDA), desktop, laptop, notebook computer, ultra-mobile personal computer (UMPC), handheld computer, netbook, and wearable device.

[0103] In some embodiments, the interface of the hard drive under test 200 is connected to the testing instrument via an interface cable. The type of interface cable is selected according to the interface type of the hard drive under test, such as a SAS interface cable, a SATA interface cable, or a U.2 interface cable.

[0104] During the test, it is necessary to detect the temperature of the air blown towards the hard drive 200 under test. To meet the testing requirements, the hard drive thermal testing fixture also includes a first temperature sensor, which is used to detect the temperature of the air blown towards the hard drive 200 under test.

[0105] In some embodiments, the first temperature sensor is located at the air inlet of the air duct housing 11. Of course, the first temperature sensor can also be located at other locations, and is not limited to the above-mentioned locations.

[0106] The type of the first temperature sensor can be selected according to actual needs; this embodiment does not limit this.

[0107] During the testing process, the temperature of the hard drive 200 under test also needs to be detected. In some embodiments, the testing instrument is used to acquire the temperature of the hard drive 200 under test. Of course, a second temperature sensor can also be separately configured to detect the temperature of the hard drive 200 under test, and the second temperature sensor can be located on the hard drive 200 under test.

[0108] During the test, it is also necessary to know the airflow volume directed towards the hard drive 200 under test, i.e., the airflow speed directed towards the hard drive 200 under test. In some embodiments, the airflow volume can be specified by a fan. In other embodiments, the airflow volume can be specified by a flow rate regulating device. To ensure that the airflow volume specified by the fan or the flow rate regulating device is the required airflow volume, the hard drive thermal testing fixture also includes an airflow detector or an airflow speed detector. The airflow detector is used to detect the airflow volume directed towards the hard drive 200 under test, and the airflow speed detector is used to detect the airflow speed directed towards the hard drive 200 under test. To facilitate the detection of the airflow volume and airflow speed directed towards the hard drive 200 under test, the airflow detector and the airflow speed detector are both located at the air inlet of the air duct housing 11. Of course, the airflow detector and the airflow speed detector can also be located in other positions, and are not limited to the positions described above.

[0109] In the hard drive thermal testing fixture, the test air duct can be used alone or in conjunction with an air supply device. It should be noted that when the test air duct is used alone, the hard drive thermal testing fixture does not include an air supply device; the test air duct 10 requires a wind tunnel or other air supply device to provide airflow.

[0110] When the test airflow channel is used alone, the usage methods of the hard drive thermal testing fixture include:

[0111] S11: The operator places the first temperature sensor at the air inlet of the test air duct.

[0112] S12: The operator places the air inlet of the test air duct inside the wind tunnel, and the operator seals the connection between the test air duct and the wind tunnel.

[0113] S13: The operator places the hard drive under test into the test air duct, connects the interface of the hard drive under test to the test instrument, and operates the test instrument to apply pressure to the hard drive under test.

[0114] S14: The operator operates the wind tunnel to sequentially supply multiple air volumes. The first temperature sensor is used to detect the temperature t2 of the air blown towards the hard drive under test. The testing instrument obtains the temperature t1 of the hard drive under test at each air volume, or the second temperature sensor detects the temperature t1 of the hard drive under test at each air volume.

[0115] For example, the operator operates the wind tunnel and sets the airflow rate to Q1 directed towards the hard drive under test. At airflow rate Q1, the temperature t1 of the hard drive under test is 50°C; the first temperature sensor detects that the temperature t2 of the airflow directed towards the hard drive under test is 25°C, that is, the detection value t2 of the first temperature sensor is 25°C.

[0116] S15: The operator obtains the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the upper limit of the working temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the detection value t2 of the first temperature sensor at each airflow rate, and T = t0 - t1 + t2.

[0117] Continuing with the example above, the upper limit of the operating temperature t0 of the hard drive under test is 70℃. Based on this, the maximum incoming flow temperature supported by the hard drive under test is T = t0 - t1 + t2 = 70℃ - 50℃ + 25℃ = 45℃. Thus, the vertical axis corresponding to the airflow Q1 blowing towards the hard drive under test is determined, which is a point (Q1, 45℃) on the hard drive's heat dissipation capacity curve.

[0118] The vertical coordinates corresponding to other airflow values ​​directed at the hard drive under test can be obtained using the method described above, and will not be repeated here.

[0119] It should be noted that if the horizontal axis of the hard drive heat dissipation capacity curve is the airflow speed V, then the airflow Q needs to be converted into airflow speed V, V = Q / A, where A is the cross-sectional area of ​​the test airflow channel after the hard drive under test is placed in the test airflow channel.

[0120] S16: The operator plots a curve of the heat dissipation capacity of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under each airflow.

[0121] It should be noted that the horizontal axis of the hard drive heat dissipation capacity curve represents the airflow or wind speed blowing towards the hard drive under test; the vertical axis represents the maximum incoming flow temperature T supported by the hard drive under test.

[0122] Continuing with the example above, in the coordinate system of the hard drive heat dissipation capability curve, draw multiple points obtained according to the method provided in this example, and connect all the points into a line. This line is the hard drive heat dissipation capability curve of the hard drive under test.

[0123] In some embodiments, if the hard disk thermal testing fixture has been equipped with the first temperature sensor before use, then the above-mentioned S11 is not required.

[0124] In some embodiments, the method of using the above-mentioned hard disk thermal testing fixture may not include S16. The relative size of the heat dissipation capacity of the two hard disks under test can be determined by directly comparing the maximum incoming flow temperature T supported by the two hard disks under test under the same airflow.

[0125] The aforementioned hard drive thermal testing fixture can test all hard drives under test, revealing the relative heat dissipation capabilities of each. A single hard drive can be selected as a benchmark, ensuring its thermal performance is compatible with the server. The heat dissipation capabilities of the benchmark are then compared to those of other hard drives under test. This benchmark serves as a comparison, allowing us to determine whether the heat dissipation capabilities of other hard drives are compatible with the server. This eliminates the need for thermal testing of each hard drive on the server, simplifying the process, reducing testing costs, and improving testing efficiency.

[0126] The aforementioned hard drive thermal testing fixture can test all hard drives, and the test results are stored in a hard drive thermal database. This facilitates the grading of hard drive thermal performance, ensures reliable delivery of thermal performance, and improves efficiency. For example, during server development, the hard drive with the worst thermal performance can be selected from the thermal database for thermal testing on the server, avoiding incomplete test coverage and significantly reducing the number of hard drives tested on the server. During hard drive compatibility testing, referring to the data in the thermal database allows for rapid assessment of a hard drive's compatibility and avoids repetitive testing of the same hard drive on different servers.

[0127] In some embodiments, the heat dissipation capability curves of multiple hard drives under test are plotted in one graph, that is, the heat dissipation capability curve graph includes multiple hard drive heat dissipation capability curves, such as... Figure 3 As shown, this allows for a direct and intuitive understanding of the relative heat dissipation capabilities of any two hard drives under test. Figure 3 In the test, the heat dissipation capabilities of the first hard drive, second hard drive, third hard drive, and fourth hard drive decrease sequentially. Regarding heat dissipation, if the third hard drive is compatible with the server, then the second and first hard drives are also compatible with the server; if the fourth hard drive is not compatible with the server, or if its compatibility with the server is still uncertain, further testing is needed.

[0128] In some embodiments, the heat dissipation capabilities of all hard drives under test are graded based on the test results of the hard drive thermal testing fixture, for example, by classifying them as follows: Figure 3 The first, second, and third hard drives in the system are classified as Class A hard drives. Figure 3 The fourth hard drive in the system is classified as a Class B hard drive.

[0129] In some embodiments, such as Figure 4a As shown, the aforementioned hard disk thermal testing fixture also includes a data processing device, which comprises a storage module, a processing module, a drawing module, and a display module.

[0130] The storage module is used to connect to the testing instrument and to the first temperature sensor. The storage module is used to store the model of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, and the detection value t2 of the first temperature sensor.

[0131] Understandably, the storage module is also used to connect to the wind tunnel to store each airflow rate given by the wind tunnel. Furthermore, if the temperature t1 of the hard drive under test is detected by the second temperature sensor, the storage module is also used to connect to the second temperature sensor to store the temperature t1 of the hard drive under test detected by the second temperature sensor.

[0132] When air blows onto the hard drive under test, its temperature will change. To accurately determine the temperature of the hard drive after air cooling, the storage module stores the temperature t1 of the hard drive under test when the temperature change within a first set time period is less than a set temperature. This improves the accuracy of the test results.

[0133] The first set duration and the set temperature can be selected according to the actual situation. For example, the first set duration is 5 seconds and the set temperature is 1°C. This embodiment does not limit this.

[0134] The processing module is used to connect with the storage module and testing instruments. Based on the upper limit of the operating temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the detection value t2 of the first temperature sensor at each airflow rate, and T = t0 - t1 + t2, the processing module obtains the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate. In this case, the above-mentioned S15 can be executed by the processing module.

[0135] The plotting module connects to the processing module and plots a graph of the hard drive's heat dissipation capacity based on the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate. In this case, the above-mentioned S16 can be executed by the plotting module.

[0136] The display module connects to the plotting module and displays a graph of the hard drive's thermal performance under test. For example, the display module can be a monitor. This allows the operator to directly view the hard drive's thermal performance graph on the display module, providing a more intuitive understanding.

[0137] A data processing device can be understood as a terminal, with a storage module, a processing module, a drawing module, and a display module integrated into the terminal. The storage module can be understood as the terminal's memory, the processing module and the drawing module can be understood as different functional units in the terminal's processor, and the display module can be understood as the terminal's display screen.

[0138] The storage module, processing module, plotting module, and display module of the data processing device can all be integrated into the testing instrument. That is, the data processing device can be understood as the testing instrument. The storage module can be understood as the memory of the testing instrument, the processing module and plotting module can be understood as different functional units within the processor of the testing instrument, and the display module can be understood as the display screen of the testing instrument.

[0139] In the aforementioned hard drive thermal testing fixture, the storage module, processing module, and plotting module automatically acquire sensor detection data and automatically plot heat dissipation capacity curves, reducing the operator's workload and avoiding the impact of operator errors on the accuracy of test results. Furthermore, the display module automatically displays the hard drive heat dissipation capacity curve, enabling a more intuitive display of the test results.

[0140] In some embodiments, the data processing device in the hard disk thermal testing fixture may not include a display module. In order to facilitate the operator to see the hard disk heat dissipation capacity curve, after the above-mentioned drawing module draws the hard disk heat dissipation capacity curve, the data processing device can send the hard disk heat dissipation capacity curve to an external device for display.

[0141] The air supply device typically provides air at room temperature, meaning the temperature of the air supplied by the air supply device is within the room temperature range. In some embodiments, the temperature of the air supplied by the air supply device can also be adjusted, meaning the air temperature is adjustable. In this way, the air supply device adjusts the air temperature until the temperature t1 of the hard drive under test equals the upper limit of the hard drive's operating temperature t0. The detection value t2 of the first temperature sensor is recorded in this case. The detection value t2 of the first temperature sensor in this case is the maximum incoming flow temperature T supported by the hard drive under test; that is, if t1 = t0, T = t2. Therefore, S14 and S15 above are combined into S14': The operator operates the wind tunnel to sequentially supply multiple airflow rates. The testing instrument or the second temperature sensor acquires the temperature t1 of the hard drive under test at each airflow rate. At each airflow rate, the air supply device adjusts the air temperature until the temperature t1 of the hard drive under test equals the upper limit of the hard drive's operating temperature t0. The operator records the detection value t2 of the first temperature sensor at this time, which is the maximum incoming flow temperature T supported by the hard drive under test.

[0142] In the above situations, such as Figure 4bAs shown, the storage module stores the model of the hard drive under test, and the detection value t2 of the first temperature sensor when the temperature t1 of the hard drive under test equals the upper limit of the operating temperature t0 of the hard drive under test at each airflow rate. In this case, the processing module does not need to be connected to the testing instrument. The processing module is used to obtain the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the detection value t2 of the first temperature sensor when the temperature t1 of the hard drive under test equals the upper limit of the operating temperature t0 of the hard drive under test at each airflow rate, and T = t2. Other modules can be referred to the previous description, and will not be repeated here.

[0143] When the test air duct and air supply device are used together, if the air supply device adjusts the air volume through a flow regulating orifice plate, the usage method of the hard disk thermal test fixture includes:

[0144] S21: The operator places the first temperature sensor at the air inlet of the test air duct.

[0145] S22: The operator places the hard drive under test into the test air duct, connects the interface of the hard drive under test to the test instrument, operates the test instrument to apply pressure to the hard drive under test, and the operator runs the fan.

[0146] S23: The operator installs multiple flow regulating orifice plates with different opening ratios in sequence in the air supply device. The first temperature sensor is used to detect the temperature t2 of the air blown towards the hard drive under test. The test instrument obtains the temperature t1 of the hard drive under test under each flow regulating orifice plate.

[0147] S24: Operator calibrates the airflow provided by the hard disk thermal test fixture when a flow regulating orifice plate is installed.

[0148] On the one hand, the air volume can be calibrated through a wind tunnel. That is, the operator puts the hard drive thermal testing fixture into the wind tunnel, and the operator installs multiple flow regulating orifice plates with different opening ratios in sequence in the air supply device. The wind tunnel obtains the air volume provided by the hard drive thermal testing fixture when the flow regulating orifice plates are installed.

[0149] On the other hand, the airflow can be calibrated by calibrating a flow sensor, which is used to detect the airflow blowing towards the hard drive under test. In this case, the aforementioned hard drive thermal testing fixture also includes a calibrated flow sensor. S23 and S24 above are combined into S23': The operator sequentially installs multiple flow regulating orifice plates with different orifice ratios into the air supply device, and the testing instrument acquires the temperature t1 of the hard drive under test under different airflow rates.

[0150] When the test air duct and air supply device are used together, and the air supply device adjusts the air volume through a flow regulating orifice plate, the data processing device mentioned above is still applicable, such as... Figure 4a and Figure 4bAs shown, the storage module is used to connect to a wind tunnel or a calibrated flow sensor to store each air volume.

[0151] S25: The operator obtains the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the upper limit of the working temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the detection value t2 of the first temperature sensor at each airflow rate, and T = t0 - t1 + t2.

[0152] As mentioned above, if the data processing device is still applicable, S25 can be executed by the processing module.

[0153] The above S25 can be referred to the explanation of S15 mentioned above, and will not be repeated here.

[0154] S26: The operator plots a curve of the heat dissipation capacity of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under each airflow.

[0155] As mentioned above, if the data processing device is still applicable, S26 can be executed by the drawing module.

[0156] The above S26 can be referred to the explanation of S16 above, and will not be repeated here.

[0157] When used in conjunction with the test air duct and air supply device, the aforementioned hard drive thermal testing fixture also exhibits the technical effects mentioned above, which will not be elaborated upon here. Moreover, when used in conjunction with the test air duct and air supply device, the aforementioned hard drive thermal testing fixture can operate without relying on a wind tunnel, further improving the testing efficiency of hard drive thermal testing.

[0158] When the test air duct and air supply device are used together, if the air supply device adjusts the airflow through a fan, the usage method of the hard drive thermal test fixture includes:

[0159] S31: The operator sets the first temperature sensor at the air inlet of the test air duct.

[0160] S32: The operator places the hard drive under test into the test air duct, connects the interface of the hard drive under test to the test instrument, operates the test instrument to apply pressure to the hard drive under test, and runs the fan.

[0161] S33: The operator controls the fan to run at multiple different airflow rates in sequence. The first temperature sensor is used to detect the temperature t2 of the airflow blowing towards the hard drive under test. The testing instrument obtains the temperature t1 of the hard drive under test at each airflow rate.

[0162] In some embodiments, the fan operates at multiple different speeds to achieve sequential operation with multiple different airflow rates.

[0163] When the test air duct and air supply device are used together, and the air supply device regulates the airflow via a fan, the data processing device mentioned above can still be applied, such as... Figure 4a and Figure 4b As shown, the storage module is used to connect to the fan to store each speed and the corresponding airflow.

[0164] S34: The operator obtains the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the upper limit of the working temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the detection value t2 of the first temperature sensor at each airflow rate, and T = t0 - t1 + t2.

[0165] As mentioned above, if the data processing device is still applicable, S34 can be executed by the processing module.

[0166] The above S34 can be referred to the previous explanation of S15, and will not be repeated here.

[0167] S35: The operator plots a curve of the heat dissipation capacity of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under each airflow.

[0168] As mentioned above, if the data processing device is still applicable, S35 can be executed by the drawing module.

[0169] The above S35 can be referred to in the previous explanation of S16, and will not be repeated here.

[0170] When used in conjunction with the airflow duct and air supply device, the aforementioned hard drive thermal testing fixture also achieves the technical effects mentioned above, which will not be elaborated upon here. Furthermore, by adjusting the airflow through the fan, the adjustment process is simplified and accelerated, further improving the testing efficiency of the hard drive thermal test.

[0171] When the test air duct and air supply device are used together, if the air supply device adjusts the air volume through a flow regulating valve, the usage method of the hard disk thermal test fixture includes:

[0172] S41: The operator places the first temperature sensor at the air inlet of the test duct.

[0173] S42: The operator places the hard drive under test into the test air duct, connects the interface of the hard drive under test to the test instrument, operates the test instrument to apply pressure to the hard drive under test, and runs the fan.

[0174] S43: The operator controls the flow regulating valve to adjust the air volume. The first temperature sensor is used to detect the temperature t2 of the air blown towards the hard drive under test. The test instrument obtains the temperature t1 of the hard drive under test at each air volume.

[0175] When the test air duct and air supply device are used together, and the air supply device regulates the airflow via a fan, the data processing device mentioned above can still be applied, such as... Figure 4a and Figure 4b As shown, the storage module is used to connect to the flow control valve to store each rotation speed and the corresponding air volume.

[0176] S44: The operator obtains the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the upper limit of the working temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the detection value t2 of the first temperature sensor at each airflow rate, and T = t0 - t1 + t2.

[0177] As mentioned above, if the data processing device is still applicable, S44 can be executed by the processing module.

[0178] The above S44 can be referred to the previous explanation of S15, and will not be repeated here.

[0179] S45: The operator plots a curve of the heat dissipation capacity of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under each airflow.

[0180] As mentioned above, if the data processing device is still applicable, S45 can be executed by the drawing module.

[0181] The above S45 can be referred to in the previous explanation of S16, and will not be repeated here.

[0182] When used in conjunction with the test air duct and air supply device, the aforementioned hard drive thermal testing fixture also achieves the technical effects mentioned above, which will not be elaborated upon here. Furthermore, adjusting the airflow via the flow regulating valve simplifies airflow adjustment, accelerates airflow regulation efficiency, and further improves the testing efficiency of hard drive thermal testing.

[0183] When used in conjunction with the test air duct and air supply device, the above-mentioned hard disk thermal test fixture also includes a hard disk detector and a control module to simplify the operator's operation.

[0184] The hard drive detector is used to check whether the test position of the test airflow channel has the hard drive to be tested.

[0185] The control module is used to connect to the hard drive detector, testing instruments, and air supply device. If the hard drive detector determines that the test position in the test air duct has the hard drive under test, the control module is used to control the testing instruments to pressurize the hard drive under test and to control the air supply device to sequentially provide multiple airflows of different volumes.

[0186] To facilitate the detection of the temperature t1 of the hard drive under test at different airflow rates and the temperature t2 of the airflow blowing onto the hard drive under test at different airflow rates, the control module is used to control the airflow provided by the air supply device to maintain each airflow rate for a second set duration. The specific value of the second set duration is selected according to actual needs, and this embodiment does not limit it.

[0187] In some embodiments, the air supply device includes a fan with adjustable speed, so that the air supply device can provide multiple different air volumes by adjusting the fan speed. In this case, the control module is used to control the air supply device to sequentially provide multiple different air volumes, specifically: the control module is used to control the fan to operate sequentially at multiple different speeds.

[0188] In some embodiments, the air supply device includes a flow regulating valve with an adjustable opening, so that the air supply device can provide multiple different air volumes by adjusting the opening of the flow regulating valve. In this case, the control module is used to control the air supply device to sequentially provide multiple different air volumes, specifically: the control module is used to control the operation of the fan and to control the flow regulating valve to operate sequentially at multiple openings.

Claims

1. A hard disk thermal testing fixture, characterized in that, Includes a test air duct, the test air duct including an air duct housing having an inner cavity for placing the hard drive under test; The air inlet or outlet of the inner cavity is used to face the interface end of the hard drive under test. The inner wall of the air duct shell is used to have a first gap for air to pass through between it and the first end face of the hard drive under test, and the inner wall of the air duct shell is used to have a second gap for air to pass through between it and the second end face of the hard drive under test. The first end face and the second end face are distributed sequentially along the thickness direction of the hard drive under test. It also includes a wind supply device, which is used to communicate with the air duct shell and supply the air required for testing to the air duct shell, and the air volume provided by the wind supply device is adjustable; or, the air duct shell is also used to connect to a wind tunnel, which is used to supply the air required for testing to the air duct shell, and the air volume provided by the wind tunnel is adjustable. The hard drive thermal testing fixture also includes: a first temperature sensor, which is disposed at the air inlet of the air duct housing, and is used to detect the temperature of the air blowing toward the hard drive under test; A second temperature sensor or testing instrument is used to detect the temperature of the hard drive under test, and the testing instrument is used to connect to the interface of the hard drive under test, apply pressure to the hard drive under test, and obtain the temperature of the hard drive under test.

2. The hard disk thermal testing fixture as described in claim 1, characterized in that, The test air duct also includes a stop member, which is disposed inside the air duct housing and is used to contact the hard drive under test and limit the hard drive under test to the test position of the air duct housing.

3. The hard disk thermal testing fixture as described in claim 1, characterized in that, The height direction of the air duct shell is the same as the thickness direction of the hard drive under test.

4. The hard disk thermal testing fixture as described in claim 3, characterized in that, The test air duct also includes a support member disposed inside the air duct housing, and the support member is used to support the hard drive under test so that there is a first gap between the inner wall of the air duct housing and the first end face, and the first end face is lower than the second end face.

5. The hard disk thermal testing fixture as described in any one of claims 1-4, characterized in that, The top of the air duct housing is provided with an operating hole and a sealing cover; wherein, the operating hole is used to allow a person's hand or auxiliary tool to reach into the air duct housing and push out the hard drive under test, and the sealing cover is detachably used to close the operating hole.

6. The hard disk thermal testing fixture as described in any one of claims 1-4, characterized in that, The air supply device includes a transmission duct housing and a fan; The fan is disposed in the transmission duct housing, the first end of the transmission duct housing has an opening for air to enter and exit, and the second end of the transmission duct housing is used to communicate with the duct housing. The fan speed is adjustable, or the air supply device further includes a flow regulating device disposed inside the transmission duct housing and capable of adjusting the air volume.

7. The hard disk thermal testing fixture as described in claim 6, characterized in that, The flow regulating device is a flow regulating valve; or, the flow regulating device is a flow regulating orifice plate, which is detachably disposed inside the transmission duct housing.

8. The hard disk thermal testing fixture as described in claim 6, characterized in that, The air supply device also includes a rectifier grille disposed within the transmission duct housing.

9. The hard disk thermal testing fixture as described in claim 6, characterized in that, The transmission duct housing includes a mounting housing and a flow guide housing; wherein, the fan is disposed on the mounting housing, the first end of the flow guide housing is connected to the mounting housing, the second end of the flow guide housing is used to connect to the duct housing, and the flow guide housing gradually narrows from the inlet of the flow guide housing to the outlet of the flow guide housing.

10. The hard disk thermal testing fixture as described in claim 6, characterized in that, It also includes a base, on which both the air supply device and the test air duct are mounted.

11. The hard disk thermal testing fixture as described in claim 6, characterized in that, Also includes: Hard disk detector and control module; The hard disk detector is used to detect whether the test position of the test airflow channel has the hard disk under test; If the hard disk detector determines that the test position of the test air duct has the hard disk under test, the control module is used to control the test instrument to pressurize the hard disk under test and to control the air supply device to sequentially provide multiple air volumes of different amounts.

12. The hard disk thermal testing fixture as described in any one of claims 1-4, characterized in that, It also includes a testing instrument, which is used to connect to the interface of the hard drive under test and apply pressure to the hard drive under test.

13. The hard disk thermal testing fixture as described in any one of claims 1-4, characterized in that, Also includes: Data processing device; The data processing device is used to store the model of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, and the temperature t of the airflow blowing onto the hard drive under test at each airflow rate; the data processing device is also used to obtain the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the upper limit of the working temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the temperature t2 of the airflow blowing onto the hard drive under test at each airflow rate, and T=t0-t1+t2. Alternatively, the data processing device is used to store the model of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate equal to the upper limit of the working temperature t0 of the hard drive under test, and the temperature t2 of the airflow blowing onto the hard drive under test at each airflow rate. The data processing device is also used to obtain the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate based on the temperature t2 of the airflow blowing onto the hard drive under test at each airflow rate equal to the upper limit of the working temperature t0 of the hard drive under test, and T=t2.

14. The hard disk thermal testing fixture as described in claim 13, characterized in that, The data processing device is also used to plot and display a hard drive heat dissipation capability curve of the hard drive under test based on the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate.

15. A method for thermal testing of a hard disk, characterized in that, The hard disk thermal testing fixture as described in any one of claims 1-14 is used to perform thermal testing on the hard disk under test, and the hard disk thermal testing method includes: Check whether the test position of the test air duct has the hard drive under test; If the test position has the hard drive under test, pressurize the hard drive under test and sequentially provide different air volumes into the test air duct; Obtain the model of the hard drive under test, detect the temperature t1 of the hard drive under test at each airflow rate, and the temperature t2 of the airflow blowing towards the hard drive under test at each airflow rate; Based on the upper limit of the operating temperature t0 of the hard drive under test, the temperature t1 of the hard drive under test at each airflow rate, the temperature t2 of the airflow blowing onto the hard drive under test at each airflow rate, and T = t0 - t1 + t2, the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate is obtained; or, the temperature t2 of the airflow blowing onto the hard drive under test is adjusted at each airflow rate until the temperature t1 of the hard drive under test is equal to the upper limit of the operating temperature t0 of the hard drive under test, and based on the temperature t2 of the airflow blowing onto the hard drive under test when the temperature t1 of the hard drive under test is equal to the upper limit of the operating temperature t0 of the hard drive under test at each airflow rate, and T = t2, the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate is obtained.

16. The hard disk thermal testing method as described in claim 15, characterized in that, Also includes: A heat dissipation capacity curve of the hard drive under test is plotted and displayed based on the maximum incoming flow temperature T supported by the hard drive under test at each airflow rate.

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