Air duct system and aging test equipment

Abstract

The utility model discloses an air duct system which comprises a heating bin. The air duct assembly is arranged on the upper portion and the two sides of the heating bin, and the two sides of the heating bin are communicated with the air duct assembly; the heating piece is arranged in the air duct assembly; the heat dissipation assembly is arranged on the air duct and used for feeding air into the air duct assembly or discharging hot air in the air duct assembly; and the circulating assembly is arranged in the air duct assembly, and the circulating assembly is used for enabling air in the air duct assembly to circularly flow. Air in the heating bin is heated through the heating piece, so that the heating bin can carry out a high-temperature aging test on a workpiece, the heated air is driven by the circulation assembly to circulate in the air duct assembly, and meanwhile, the heat dissipation assembly can input cold air into the heating bin for cooling or exhaust hot air out for cooling to carry out heat dissipation and temperature control on the heating bin. And the heating bin is kept in a relatively constant-temperature state, and workpieces cannot be damaged due to too high temperature. The utility model also discloses an aging test device.

Description

Technical Field

[0001] The utility model relates to the technical field of aging test equipment, in particular to an air duct system and aging test equipment. Background Art

[0002] The electronic load will generate heat during the aging test. The fan installed inside the electronic load will draw in the cold air outside, blow it out after passing through the electronic load heat sink, and take out the heat to form hot air, which will be discharged through the exhaust fan in the aging test cabinet to achieve the purpose of heat dissipation. However, in actual testing, since a large number of electronic loads are installed in the entire aging test cabinet, a large part of the hot air blown out by the electronic load is not discharged by the exhaust fan in the aging test cabinet, but is sucked in by other electronic load fans again, passes through the electronic load to form hotter air, and repeats the cycle, causing more and more hot air to circulate repeatedly inside the aging test cabinet, and the temperature inside the aging test cabinet is getting higher and higher. In a high temperature environment, the fan and circuit board components of the electronic load are easily damaged, and there are certain safety hazards. Utility Model Content

[0003] The utility model provides an air duct system and a testing device, aiming to solve at least one of the technical problems existing in the prior art.

[0004] The technical solution of the first aspect of the utility model relates to an air duct system, which includes:

[0005] Heating chamber;

[0006] An air duct assembly is arranged on the upper part and both sides of the heating chamber, and both sides of the heating chamber are connected to the air duct assembly;

[0007] A heating element, disposed in the air duct assembly;

[0008] A heat dissipation component is arranged on the air duct, and the heat dissipation component is used to introduce air into the air duct component or discharge hot air in the air duct component;

[0009] The circulation component is arranged in the air duct component, and the circulation component is used to circulate the air in the air duct component.

[0010] According to some embodiments of the utility model, the air duct assembly includes a first air duct, a second air duct and a third air duct, the first air duct and the third air duct are arranged on both sides of the heating bin, the second air duct is arranged on the upper part of the heating bin, the first air duct and the third air duct are connected to both sides of the heating bin, both ends of the second air duct are respectively connected to the first air duct and the third air duct, and the heating element is arranged in the second air duct.

[0011] According to some embodiments of the utility model, a first orifice plate and a second orifice plate are provided between the first air duct and the heating chamber, the first orifice plate is provided with a through hole, the second orifice plate is provided with a waist-shaped hole, the second orifice plate can be moved up and down relative to the first orifice plate, and a first orifice plate is provided between the third air duct and the heating chamber.

[0012] According to some embodiments of the utility model, a first orifice plate and a second orifice plate are provided between the third air duct and the heating chamber, the first orifice plate is provided with a through hole, the second orifice plate is provided with a waist-shaped hole, the second orifice plate can be moved up and down relative to the first orifice plate, and the first orifice plate is provided between the first air duct and the heating chamber.

[0013] According to some embodiments of the present invention, a first orifice plate and a second orifice plate are provided between the first air duct and the heating chamber and between the third air duct and the heating chamber, the first orifice plate is provided with a through hole, the second orifice plate is provided with a waist-shaped hole, and the second orifice plate can be displaced up and down relative to the first orifice plate.

[0014] According to some embodiments of the utility model, the heat dissipation assembly includes an air inlet motor and an air outlet motor arranged on the air duct assembly, the air inlet motor is arranged between the circulation assembly and the heating element and connected to the second air duct, and the air outlet motor is arranged at the upper end of the third air duct and connected to the third air duct.

[0015] According to some embodiments of the present utility model, the circulation component includes a third motor and fan blades, and the fan blades are connected to the output shaft of the third motor and are arranged in the second air duct.

[0016] According to some embodiments of the present invention, a temperature sensor and a smoke sensor are further included and arranged above the air duct assembly.

[0017] According to some embodiments of the utility model, fire-fighting equipment is also included, and the fire-fighting equipment is connected to the air duct assembly.

[0018] The technical solution of the second aspect of the utility model relates to an aging test device having the air duct system as described above.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The air in the heating chamber is heated by the heating element, so that the heating chamber can perform high-temperature aging tests on the workpiece. The heated air is driven by the circulation component to circulate in the air duct component. At the same time, the heat dissipation component can input cold air into the heating chamber to cool it down, or discharge hot air to cool it down, and dissipate heat and control the temperature of the heating chamber, so that the heating chamber maintains a relatively constant temperature state, which will not cause excessive temperature to damage the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the aging test equipment of the embodiment of the utility model (hidden door and transportation system);

[0022] Figure 2 It is a structural schematic diagram of the air duct system of an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the air duct system shown;

[0024] Figure 4 is a cross-sectional view of an air duct system of an embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a transportation system of an embodiment of the utility model;

[0026] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the transport system shown.

[0027] Figure Number:

[0028] Box 100;

[0029] Heating chamber 200;

[0030] Docking assembly 300;

[0031] Air duct assembly 400, first air duct 410, second air duct 420, third air duct 430, first orifice plate 440, second orifice plate 450, through hole 460, waist-shaped hole 470;

[0032] Heat dissipation assembly 500, air inlet motor 510, air outlet motor 520;

[0033] Circulation component 600, third motor 610, fan blade 620;

[0034] Trolley 700, track 710, carrier plate 720, bracket 730, support plate 740;

[0035] A first driving assembly 800, a motor 810, and a belt assembly 820;

[0036] A second driving assembly 900 , a second slide rail 910 , a second slider 920 , and a second cylinder 930 . DETAILED DESCRIPTION

[0037] The following content will describe several embodiments of the present utility model, including embodiments corresponding to the drawings. It can be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present utility model, and should not be understood as limiting the scope of protection of the present utility model.

[0038] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0039] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set on" another feature, it can be directly "fixed", "connected", "installed" or "set on" another feature, or it can be indirectly "fixed", "connected", "installed" or "set on" another feature. The words "fixed", "connected", "installed" or "set on" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this utility model in combination with the specific content of the technical solution.

[0040] It should be noted that the descriptions of the directions or positional relationships indicated by up, down, left, right, top, bottom, front, back, inside, and outside used in the present invention are based on the directions or positional relationships in the drawings or embodiments and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] It should be noted that the term "and / or" used in the present utility model includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0042] It should be noted that the description of first and second in the utility model is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] It should be noted that, unless otherwise clearly defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments, not for limiting the present invention.

[0044] Reference Figures 1 to 6The technical solution of the utility model relates to an aging test device, which includes: a box body 100; a heating chamber 200, which is arranged in the box body 100; a test station 210, which is arranged in the heating chamber 200 and is used to place a workpiece; a docking assembly 220, which is arranged in the heating chamber 200 and is located on one side of the test station 210, and the docking assembly 220 is used to dock the workpiece; a duct system, which is arranged in the box body 100 and is used to heat the heating chamber 200 and adjust the temperature of the heating chamber 200; a transportation system, which is arranged on the side of the box body 100, and is used to send the workpiece into the heating chamber 200 or obtain the workpiece from the heating chamber 200.

[0045] The application of the above-mentioned aging test equipment has at least the following beneficial effects: the workpiece is automatically sent into the heating chamber 200 or taken out from the heating chamber 200 through the transportation system, and the workpiece sent into the heating chamber 200 is automatically docked with each module by the docking assembly 220 without manual wiring operation. The air duct system ensures that the temperature in the heating chamber remains constant to avoid damage to the workpiece caused by excessive temperature. At the same time, the workpiece is transported by the transportation system without manual entry, and a constant temperature can be maintained at all times without frequent temperature increase or decrease, thereby improving the test efficiency.

[0046] It should be noted that the docking component 220 is provided with a high-voltage module, a hydraulic module and a weak-current module, and the test station 210 is respectively connected to the high-voltage module, the hydraulic module and the weak-current module. It can be understood that the docking component 220 integrates test modules such as the high-voltage module, the hydraulic module and the weak-current module, and the test station 210 is connected to the above-mentioned test modules through pipelines and wires. During the test process, the workpiece only needs to be placed on the test station to complete the connection with the docking component 220, eliminating the operation of wiring and docking each module, thereby improving the efficiency and accuracy of the test.

[0047] In some embodiments of the present invention, a plurality of boxes 100 are provided, and every two boxes 100 are arranged opposite to each other. The plurality of boxes 100 arranged opposite to each other are arranged in parallel along the Y-axis direction. The transportation system is arranged between the two boxes 100. A plurality of test stations 210 are provided in the heating chamber 200 of each box 100, so that a large number of workpieces can be subjected to aging tests at the same time, thereby greatly improving the test efficiency. It should be noted that the X-axis direction, the Y-axis direction and the Z-axis direction in the context are the directions shown in the figure, the up and down directions mentioned in the context refer to the directions along the Z-axis, and the front and back directions refer to the directions along the X-axis.

[0048] According to some embodiments of the present invention, referring to Figures 1 to 6The air duct system includes: an air duct component 300, which is arranged on the upper part and both sides of the heating chamber 200, and the two sides of the heating chamber 200 are connected to the air duct component 300; a heating element 310, which is arranged in the air duct component 300; a heat dissipation component 400, which is arranged on the air duct, and the heat dissipation component is used to introduce air into the air duct component 300 or discharge the hot air in the air duct component 300; a circulation component 500, which is arranged in the air duct component 300, and the circulation component 500 is used to circulate the air in the air duct component 300.

[0049] Application of the above-mentioned air duct system has at least the following beneficial effects: the air in the heating chamber 200 is heated by the heating element 310, so that the heating chamber 200 can perform a high-temperature aging test on the workpiece, and the heated air is driven to circulate in the air duct assembly 300 via the circulation assembly 500. At the same time, the heat dissipation assembly 400 can input cold air into the heating chamber 200 to cool it down, or discharge hot air to cool it down, and perform heat dissipation and temperature control on the heating chamber 200, so that the heating chamber 200 maintains a relatively constant temperature state, and does not cause excessive temperature to damage the workpiece.

[0050] According to some embodiments of the present invention, referring to Figures 1 to 6 The air duct assembly 300 includes a first air duct 320, a second air duct 330 and a third air duct 340. The first air duct 320 and the third air duct 340 are arranged on both sides of the heating chamber 200, and the second air duct 330 is arranged on the upper part of the heating chamber 200. The first air duct 320 and the third air duct 340 are connected to both sides of the heating chamber 200. The two ends of the second air duct 330 are respectively connected to the first air duct 320 and the third air duct 340. The heating element 310 is arranged in the second air duct 330. During the heating process, the heating element 310 is started, and the circulation assembly 500 blows the hot air at the heating element 310 into the heating chamber 200 along the first air duct 320 to increase the temperature in the heating chamber 200, and then continues to come out through the third air duct 340 and enters the second air duct 330, and finally returns to the first air duct 320 for circulation.

[0051] According to some embodiments of the present invention, referring to Figures 1 to 6 A first orifice plate 350 and a second orifice plate 360 ​​are provided between the first air duct 320 and the heating chamber 200 and between the third air duct 340 and the heating chamber 200. The first orifice plate 350 is provided with a through hole 351, and the second orifice plate 360 ​​is provided with a waist-shaped hole 361. The second orifice plate 360 ​​can be displaced up and down relative to the first orifice plate 350. By respectively providing the through hole 351 and the waist-shaped hole 361 on the first orifice plate 350 and the second orifice plate 360, the second orifice plate 360 ​​can be displaced up and down relative to the first orifice plate 350, so that the hole positions on the second orifice plate 360 ​​and the first orifice plate 350 are aligned or misaligned, so as to change the size of the pores for air circulation, thereby changing the air circulation rate in the entire air duct assembly 300.

[0052] In some other embodiments, a first orifice plate 350 and a second orifice plate 360 ​​are provided between the first air duct 320 and the heating chamber 200, the first orifice plate 350 is provided with a through hole 351, the second orifice plate 360 ​​is provided with a waist-shaped hole 361, the second orifice plate 360 ​​can be moved up and down relative to the first orifice plate 350, and the first orifice plate 350 is provided between the third air duct 340 and the heating chamber 200.

[0053] In some other embodiments, a first orifice plate 350 and a second orifice plate 360 ​​are provided between the third air duct 340 and the heating chamber 200, the first orifice plate 350 is provided with a through hole 351, the second orifice plate 360 ​​is provided with a waist-shaped hole 361, the second orifice plate 360 ​​can be moved up and down relative to the first orifice plate 350, and the first orifice plate 350 is provided between the first air duct 320 and the heating chamber 200.

[0054] According to some embodiments of the present invention, referring to Figures 1 to 6 The heat dissipation component 400 includes an air inlet motor 410 and an air outlet motor 420 arranged on the air duct component 300. The air inlet motor 410 is arranged between the circulation component 500 and the heating element 310 and is connected to the second air duct 330. The air outlet motor 420 is arranged at the upper end of the third air duct 340 and is connected to the third air duct 340. The air inlet motor 410 can blow external air into the air duct component 300. The external air is introduced into the entire system as low-temperature air, which can have a certain cooling effect on the entire air duct system. At the same time, the air outlet motor 420 can draw the heated high-temperature air from the heating chamber 200 to the third air duct 340 and discharge it to the outside, further playing a heat dissipation role on the entire heating chamber 200 to maintain the constant temperature effect in the heating chamber 200.

[0055] According to some embodiments of the present invention, referring to Figures 1 to 6 The circulation component 500 includes a third motor 510 and a fan blade 520 . The fan blade 520 is connected to the output shaft of the third motor 510 and is disposed in the second air duct 330 .

[0056] According to some embodiments of the present invention, a temperature sensor and a smoke sensor are also included above the air duct assembly 300, and the temperature sensor and the smoke sensor are used to monitor the situation in the heating chamber 200 in real time.

[0057] According to some embodiments of the present invention, referring to Figures 1 to 6 , also includes fire-fighting equipment 370, and the fire-fighting equipment 370 is connected to the air duct assembly 300. When the temperature sensor and the smoke sensor send out alarm signals at the same time, the fire-fighting equipment 370 is started and a fire-extinguishing agent is sprayed into the air duct assembly 300 to carry out fire-fighting treatment. When the temperature sensor or the smoke sensor alone sends out an alarm signal, the fire-fighting equipment 370 is in a standby state.

[0058] According to some embodiments of the present invention, referring to Figures 1 to 6 The transportation system includes: a track 600, which is arranged along the Y-axis direction; a trolley 700, which is movably arranged on the track 600, and a power component 770 is provided on the trolley 700, and the power component 770 is used to drive the trolley 700 to move along the track 600; a carrier plate 740, which is movably arranged on the trolley 700 and is used to place a workpiece to be tested; a first driving component 750, which is arranged on the trolley 700, and the first driving component 750 is used to drive the carrier plate 740 to move along the Z-axis direction; a second driving component 760, which is arranged on the trolley 700, and the second driving component 760 is used to drive the carrier plate 740 to move along the X-axis direction.

[0059] The application of the above-mentioned transportation system has at least the following beneficial effects: the trolley 700 moves on the track through its own power component 770 to transport the workpiece on the carrier 740. After transporting to the heating chamber 200, the first drive component 750 drives the carrier 740 and the workpiece to move to the height position of the heating chamber 200 along the Z-axis direction, and the second drive component 760 drives the carrier 740 and the workpiece to enter the heating chamber 200 along the X-axis direction. Then, the second drive component 760 drives the carrier 740 to exit the heating chamber 200. The whole process is operated by the trolley 700 itself. Since the trolley 700 does not need to consider the temperature problem, the heating chamber 200 can always maintain the test temperature without frequent temperature increases and decreases, thereby improving the test efficiency.

[0060] According to some embodiments of the present invention, referring to Figures 1 to 6 The power assembly 770 includes a first motor 771, a power wheel 772 and a first rack 773. The first rack 773 is arranged along the track 600. The first motor 771 is arranged on the trolley 700. The power wheel 772 is connected to the output shaft of the first motor 771. The power wheel 772 is rollingly connected to the first rack 773. In the present embodiment, the power wheel 772 is configured as a gear-like structure. In some other embodiments, the gear can be directly engaged with the first rack 773. The power is transmitted by engaging the power wheel 772 with the first rack 773, so that the entire trolley is stable and low-noise during the movement, thereby ensuring the stability of transporting workpieces.

[0061] According to some embodiments of the present invention, referring to Figures 1 to 6 A guide groove 110 is provided above the box 100, a guide rail 120 is provided in the guide groove 110, and a guide wheel 790 is provided above the trolley 700. The trolley 700 is further guided by the cooperation of the guide wheel 790 and the guide rail 120. When multiple boxes 100 are provided, the guide groove 110 and the track 600 are provided between two boxes 100, and the second driving assembly 760 of the trolley 700 can drive the carrier plate 740 to transport workpieces into the boxes 100 on both sides.

[0062] According to some embodiments of the present invention, referring to Figures 1 to 6 The trolley 700 includes a base plate 710, a bracket 720 and a support plate 730. A plurality of first sliders 711 are provided at the lower end of the base plate 710. The first sliders 711 are slidably connected to the track 600. The bracket 720 is provided on the base plate 710. The support plate 730 is movably connected to the bracket 720. The carrier plate 740 is provided on the support plate 730. The first driving assembly 750 is used to drive the support plate 730 to move along the Z axis. The second driving assembly 760 is used to drive the carrier plate 740 to move along the X axis on the support plate 730.

[0063] According to some embodiments of the present invention, referring to Figures 1 to 6 The first driving component 750 includes: a second motor 751, which is arranged on the bracket 720; a pulley 752, which is arranged on the bracket 720 and connected to the output shaft of the second motor 751; a belt 753, which is arranged along the Z-axis direction and movably connected to the pulley 752; a support frame 754, which is connected to the belt 753. The support plate 730 is arranged above the support frame 754. The second motor 751 drives the pulley 752 and the belt 753 to cooperate to transport the support plate 730 up and down. While transporting smoothly, the support plate 730 can be moved up and down in a large range.

[0064] According to some embodiments of the present invention, referring to Figures 1 to 6 The second driving assembly 760 includes: a fourth motor 761, which is arranged at the lower end of the support plate 730; a ball screw 764, which is connected to the output end of the fourth motor 761 and is arranged on the support plate 730 along the X-axis direction; a first slide rail 762, which is arranged on the support plate 730 along the X-axis direction; a second slider 763, which is movably connected to the first slide rail 762, and the carrier plate 740 is arranged on the second slider 763.

[0065] According to some embodiments of the present invention, referring to Figures 1 to 6 , and also includes a locking assembly 230, which is arranged on a side of the test station 210 away from the docking assembly 220. The locking assembly 230 is used to limit the workpiece on the test station 210 from escaping from the heating chamber 200, and an unlocking member 780 is provided on the trolley 700.

[0066] According to some embodiments of the present invention, referring to Figures 1 to 6The locking assembly 230 includes: a fixed block 231, which is arranged at the test station 210; a floating block 232, which is movable along the Z-axis direction and is arranged at the fixed block 231, and the unlocking member 780 is used to drive the floating block 232 to sink downward into the fixed block 231; a spring 233, whose two ends respectively abut the fixed block 231 and the floating block 232, and the spring 233 is used to drive the floating block 232 to extend upward from the fixed block 231, and a cylinder is also provided on the support plate 730, and the cylinder is used to push the unlocking member 780 to approach or move away from the test station 210. , the front section of the unlocking member 780 is provided with an inclined surface. When the inclined surface touches the floating block 232, the floating block 232 starts to move downward and squeezes the spring 233. As the unlocking member 780 further extends into the test station 210, the floating block 232 is completely immersed in the fixed block 231, so that the workpiece can be placed in the test station 210. After the unlocking member 780 exits the test station 210, the floating block 232 extends upward from the fixed block 231 under the action of the spring 233, thereby restricting the workpiece in the test station 210. It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" and the like can be used to describe several embodiments of the utility model, and the specific features, structures, materials or characteristics in several embodiments can be combined in accordance with the principles and purposes of the utility model.

[0067] Although some embodiments of the utility model have been shown and described in this specification, the utility model should not be limited to the above-mentioned embodiments. As long as the technical effects of the utility model are achieved by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations of these embodiments within the spirit and principles of the present disclosure and without departing from the principles and purpose of the present utility model should be included in the scope of protection of the present disclosure and should be deemed to belong to the scope of protection of the utility model.

Claims

1. An air duct system, It is characterized in that include: Heating chamber; An air duct assembly is arranged on the upper part and both sides of the heating chamber, and both sides of the heating chamber are connected to the air duct assembly; A heating element, disposed in the air duct assembly; A heat dissipation component is arranged on the air duct, and the heat dissipation component is used to introduce air into the air duct component or discharge hot air in the air duct component; The circulation component is arranged in the air duct component, and the circulation component is used to circulate the air in the air duct component.

2. The air duct system according to claim 1, It is characterized in that The air duct assembly includes a first air duct, a second air duct and a third air duct, the first air duct and the third air duct are arranged on both sides of the heating chamber, the second air duct is arranged on the upper part of the heating chamber, the first air duct and the third air duct are connected to both sides of the heating chamber, the two ends of the second air duct are respectively connected to the first air duct and the third air duct, and the heating element is arranged in the second air duct.

3. The air duct system according to claim 2, It is characterized in that A first orifice plate and a second orifice plate are provided between the first air duct and the heating chamber, the first orifice plate is provided with a through hole, the second orifice plate is provided with a waist-shaped hole, the second orifice plate can be displaced up and down relative to the first orifice plate, and a first orifice plate is provided between the third air duct and the heating chamber.

4. The air duct system according to claim 2, It is characterized in that A first orifice plate and a second orifice plate are provided between the third air duct and the heating chamber, the first orifice plate is provided with a through hole, the second orifice plate is provided with a waist-shaped hole, the second orifice plate can be displaced up and down relative to the first orifice plate, and a first orifice plate is provided between the first air duct and the heating chamber.

5. The air duct system according to claim 2, It is characterized in that A first orifice plate and a second orifice plate are provided between the first air duct and the heating chamber and between the third air duct and the heating chamber. The first orifice plate is provided with a through hole, and the second orifice plate is provided with a waist-shaped hole. The second orifice plate can be displaced up and down relative to the first orifice plate.

6. The air duct system according to claim 2, It is characterized in that The heat dissipation component includes an air inlet motor and an air outlet motor arranged on the air duct component, the air inlet motor is arranged between the circulation component and the heating element and connected to the second air duct, and the air outlet motor is arranged at the upper end of the third air duct and connected to the third air duct.

7. The air duct system according to claim 2, It is characterized in that The circulation component includes a third motor and fan blades, wherein the fan blades are connected to the output shaft of the third motor and are arranged in the second air duct.

8. The air duct system according to claim 1, It is characterized in that It also includes a temperature sensor and a smoke sensor which are arranged above the air duct component.

9. The air duct system according to claim 8, It is characterized in that It also includes fire-fighting equipment, which is connected to the air duct component.

10. An aging test device, It is characterized in that Comprising the air duct system according to any one of claims 1 to 9.

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