Power amplifier testing device based on train number identification

Abstract

The utility model relates to the technical field of power amplifier testing, in particular to a power amplifier testing device based on train number identification, which comprises a shell; the detection unit is used for detecting the internal temperature of the shell; the cooling unit comprises a recycling assembly for recycling water to be condensed, a condensing assembly for cooling the inner wall of the shell, a condensed water circulating assembly for introducing the water to be condensed in the condensing assembly into the recycling assembly, and a ventilating assembly for ventilating the space in the shell; and the power amplifier test unit comprises a power amplifier test assembly for testing a power amplifier for identifying the train number and a wire outlet which is arranged at one side of the shell far away from the condensation assembly and is used for providing a connection space for a connection line of the power amplifier test assembly and the power amplifier. According to the utility model, the heat dissipation efficiency and the heat dissipation accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of power amplifier testing technology, and in particular to a power amplifier testing device based on train number recognition. Background Technology

[0002] In existing technologies, the power amplifier testing device for train number recognition utilizes various efficient heat dissipation solutions to ensure stable operation of the equipment under high-intensity working conditions. One common solution is to use a heat pipe heat exchanger as the core component of the heat dissipation device. Heat pipe heat exchangers have advantages such as extremely high thermal conductivity, good isothermal properties, long-distance heat transfer capability, and controllable temperature. The evenly distributed heat dissipation fins on the heat exchange tubes further enhance the heat dissipation effect. Another heat dissipation solution emphasizes the optimization of the outer shell material and structure. For example, using a metal shell to reduce heat dissipation energy consumption and coating the outer surface of the shell with an anti-radiation coating to effectively block solar radiation heat from entering the interior of the shell.

[0003] Chinese Patent Publication No. CN216218379U discloses a power amplifier testing device, including a housing (1), a power supply (2), and a power amplifier board (3). The housing (1) is rectangular and includes a bottom plate (4), a top plate (5), four side plates, and four support columns (6). The four side plates are a front plate (7), a rear plate (8), a left plate (9), and a right plate (10). The power supply (2) is mounted on the bottom plate (4), and the power amplifier board (3) is mounted on the front plate (7). Fans (11) are mounted on both the left plate (9) and the right plate (10). The four support columns (6) are respectively mounted on the bottom plate (4). At the four corners of the interior of the outer casing (1), two adjacent side plates, the bottom plate (4), and the top plate (5) are detachably connected to the support column (6). The support column (6) is cuboid in shape, and its height is adapted to the height of the side plates. First screw holes (12) are provided on the top and bottom surfaces and at least two adjacent side surfaces of the support column (6). Second screw holes (13) are provided at the corners of the bottom plate (4), the top plate (5), and the side plates. Two adjacent side plates, the bottom plate (4), and the top plate (5) are screwed to the support column (6) by first screws. It can be seen that the power amplifier testing equipment has the problem of unstable test results due to the heat generated by the internal devices during power amplifier testing, and decreased heat dissipation accuracy due to the instability of the heat dissipation area of ​​the power amplifier testing equipment. Utility Model Content

[0004] To address this issue, this invention provides a power amplifier testing device based on train number recognition, which overcomes the problems in the prior art where unstable test results are caused by the heat generated by the internal devices during power amplifier testing, and where the accuracy of heat dissipation decreases due to the instability of the heat dissipation area of ​​the power amplifier testing equipment.

[0005] To achieve the above objectives, this utility model provides a power amplifier testing device based on train number recognition, comprising:

[0006] shell;

[0007] A detection unit, which is connected to the outer casing, is used to detect the internal temperature of the outer casing;

[0008] The cooling unit, which is connected to the outer casing, includes a recovery component disposed between the inner wall and the outer wall of the outer casing for recovering the condensate, a condensation component connected to the recovery component for cooling the inner wall of the outer casing, a condensate circulation component connected to the recovery component for introducing the condensate in the condensation component into the recovery component, and a ventilation component disposed above the condensation component for ventilating the space inside the outer casing.

[0009] The power amplifier test unit, which is located inside the housing, includes a power amplifier test assembly for testing a power amplifier that identifies a train number and an outlet located on the side of the housing away from the condenser assembly to provide a connection space for the connection lines between the power amplifier test assembly and the power amplifier.

[0010] Furthermore, the recycling component includes:

[0011] A condenser, which is connected to the outer wall of the housing, is used to cool the recovered water to form condensate;

[0012] A recovery container, connected to the condenser, is used to input the water to be condensed into the condenser.

[0013] Furthermore, the condensation assembly includes:

[0014] A condensate pump, connected to the condenser, is used to transfer the condensate from the condenser.

[0015] A condenser container, connected to the condensate pump, is used to receive the condensate.

[0016] Furthermore, the condensate circulation assembly includes:

[0017] Several first recovery channels are equally spaced on the side wall of the recovery container to allow the condensate after heat exchange to flow into the recovery container;

[0018] The second recovery channel is located on the lower surface of the recovery container and is used to recover the condensate stored at the bottom of the condensation container.

[0019] Several first valves are connected to the first recovery channel to control the opening and closing state of the first recovery channel;

[0020] The second valve, which is connected to the second recovery channel, is used to control the opening and closing state of the second recovery channel.

[0021] Furthermore, the connection position between the first recovery channel and the condensation container is above the connection position between the first recovery channel and the recovery container.

[0022] Furthermore, the detection unit includes a plurality of temperature sensors that are equally spaced on the inner wall of the housing in the vertical direction.

[0023] Furthermore, the number of temperature sensors is equal to the number of the first recycling channels, with each temperature sensor corresponding to a single first recycling channel along a horizontal line.

[0024] Furthermore, the ventilation assembly includes:

[0025] A vent is located above the condensate container;

[0026] Several ventilation blades are connected to the ventilation opening to control the ventilation status of the ventilation opening;

[0027] Start the motor, which is connected to several of the ventilation blades, to provide driving force for the ventilation blades.

[0028] Furthermore, the length of the condensation container is greater than the length of the recovery container.

[0029] Furthermore, the splicing length of several of the ventilation blades in the closed state is equal to the length of the ventilation opening.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows: the device of this utility model is provided with a shell, a detection unit, a condensation unit, and a ventilation assembly. The detection unit uses several temperature sensors equally spaced on the inner wall of the shell to accurately detect the location of temperature changes inside the shell. The detection unit works in conjunction with the condensation unit to perform cooling. The condensation assembly in the condensation unit performs efficient heat exchange with the shell through a condensation container, rapidly transferring the heat accumulated inside the shell to the condensate. After further cooling in the condenser, the condensate is returned to the recovery container by a condensate pump, forming a closed loop system. By controlling the height of the condensate in the condenser assembly, precise heat dissipation is achieved within the housing. Cooling the interior of the housing from one side away from the power amplifier test leads effectively avoids testing errors caused by temperature fluctuations in the test leads, ensuring the accuracy and stability of test results. A ventilation assembly enables multi-stage heat dissipation within the housing, improving both efficiency and accuracy. A condenser unit located away from the power amplifier and test assembly outlets prevents the impact of cooling on the power amplifier test leads, increasing the stability and accuracy of the power amplifier test assembly during testing.

[0031] Furthermore, the device described in this utility model, by setting up a recovery container and a condenser, recovers and cools the condensate after heat exchange, effectively avoiding the waste of condensate and improving the utilization efficiency of condensate. The recovery container is connected to the outer shell to receive the condensate after heat exchange, while the condenser further cools the condensate in the recovery container, ensuring that the condensate remains at a low temperature during the recycling process, thereby improving the heat dissipation effect.

[0032] Furthermore, the device described in this utility model, by setting up a condensing container and a condensate pump, inputs the cooled condensate into the condensing container through the condensate pump to cool the outer shell. By connecting the condensate pump to the bottom surface of the condensing container, the condensate is transported upward in the condensing container, achieving an effective heat exchange effect between the condensate and the lower space inside the container, thereby improving the heat dissipation efficiency.

[0033] Furthermore, the device of this utility model, by setting a first recovery channel, a second recovery channel, a first valve, and a second valve, precisely controls the height of condensate in the condensation assembly, ensuring the high efficiency and stability of the heat exchange process. The first recovery channel is evenly spaced on the side wall of the recovery container, ensuring that condensate can flow into the recovery container uniformly, reducing the problem of uneven condensation. The second recovery channel is connected to the lower surface of the recovery container and is used to recover the condensate stored at the bottom of the condensation container, improving the utilization rate of condensate and the heat dissipation effect. The setting of the first valve and the second valve realizes precise control of the height of condensate in the condensation assembly. The first valve is connected to the first recovery channel, and by adjusting the opening of the valve, the speed at which condensate flows into the recovery container can be controlled, thereby adjusting the height of condensate in the condensation assembly. The second valve is connected to the second recovery channel and is used to control the opening and closing state of the second recovery channel, realizing the full recovery of condensate.

[0034] Furthermore, the device of this invention controls the flow direction of condensate by setting an inclined first recovery channel, ensuring that the condensate can flow smoothly into the recovery container, thereby avoiding the accumulation and blockage of condensate in the pipe and improving heat dissipation efficiency.

[0035] Furthermore, the device described in this utility model, by setting a temperature sensor at the same height as the first recycling channel, monitors the temperature of the outer casing in real time and coordinates with the condensation unit to perform heat dissipation treatment for areas corresponding to different heights. This achieves real-time monitoring and dynamic adjustment of the temperature inside the casing, further improving the heat dissipation effect and accuracy. The temperature sensor can also provide more accurate temperature data for power amplifier testing, thereby improving the accuracy of the test.

[0036] Furthermore, by setting up ventilation openings, ventilation blades, and a starting motor, this utility model introduces a strong downward airflow into the housing, accelerates the airflow inside the housing, further removes the heat generated on the upper part of the device, improves the overall heat dissipation effect, solves the problem of unstable test results caused by the heat generated by the internal devices during the power amplifier test, ensures the stable operation of the equipment in a high-intensity working environment, and achieves improved heat dissipation efficiency.

[0037] Furthermore, the device of this utility model, by setting a condensation container higher than the recovery container, allows the condensate to have a larger heat dissipation area in the condensation container, prolonging the residence time of the condensate in the condensation container, thereby improving the sufficiency of heat exchange and extending the residence time of the condensate in the condensation container, thus achieving an improved heat dissipation effect.

[0038] Furthermore, the device described in this utility model, by setting the splicing length of the ventilation blades, allows the ventilation blades to completely cover the ventilation opening when closed, preventing external dust and debris from entering the interior of the casing and maintaining the cleanliness and heat dissipation efficiency inside the casing. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the power amplifier testing device based on train number recognition according to an embodiment of the present utility model;

[0040] The reference numerals are as follows: 1-Condensation container, 2-Recovery container, 3-First recovery channel, 4-First valve, 5-Condenser, 6-Condensate pump, 7-Second recovery channel, 8-Second valve, 9-Ventilation port, 10-Temperature sensor, 11-Ventilation blade, 12-Outer wall of the housing, 13-Inner wall of the housing, 14-Outlet, 15-Power amplifier test assembly, 16-Power amplifier. Detailed Implementation

[0041] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0042] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0044] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Please see Figure 1The diagram shown is an overall structural schematic of the power amplifier testing device based on train number recognition according to an embodiment of this utility model; the power amplifier testing device based on train number recognition according to this utility model includes:

[0046] shell;

[0047] A detection unit, which is connected to the outer casing, is used to detect the internal temperature of the outer casing;

[0048] The cooling unit, which is connected to the outer shell, includes a recovery component disposed between the inner wall 13 and the outer wall 12 of the outer shell for recovering the condensate, a condensation component connected to the recovery component for cooling the inner wall 13 of the outer shell, a condensate circulation component connected to the recovery component for introducing the condensate in the condensation component into the recovery component, and a ventilation component disposed above the condensation component for ventilating the space inside the outer shell.

[0049] The power amplifier test unit, which is located inside the housing, includes a power amplifier test assembly 15 for testing the power amplifier 16 that identifies the train number, and an outlet 14 located on the side of the housing away from the condenser assembly to provide a connection space for the connection line between the power amplifier test assembly 15 and the power amplifier 16.

[0050] Specifically, the power amplifier test component 15 includes:

[0051] A signal generator, which is connected to the power amplifier 16, is used to test the signal generated by the power amplifier 16;

[0052] A power meter, which is connected to the power amplifier 16, is used to measure the power output of the power amplifier 16.

[0053] The power supply is connected to the signal generator and the power meter respectively, and is used to provide electrical energy to the signal generator and the power meter.

[0054] In implementation, the device of this utility model comprises a shell, a detection unit, a condensation unit, and a ventilation assembly. The detection unit uses several temperature sensors 10 evenly spaced on the inner wall 13 of the shell to accurately detect the location of temperature changes within the shell. The detection unit works in conjunction with the condensation unit to perform cooling. The condensation assembly in the condensation unit exchanges heat efficiently with the shell through the condensation container 1, rapidly transferring the heat accumulated inside the shell to the condensate. After further cooling in the condenser 5, the condensate is returned to the recovery container 2 by the condensate pump 6, forming a closed-loop system. The condensate is then controlled to condense within the condenser. The height of the component allows for precise heat dissipation within the housing; by cooling the interior of the housing from one side away from the power amplifier test leads, testing errors caused by temperature fluctuations in the power amplifier test leads are effectively avoided, ensuring the accuracy and stability of the test results; by setting up a ventilation component, a multi-stage heat dissipation effect is achieved within the housing, improving heat dissipation efficiency and accuracy; by setting a condensation unit on the housing away from the outlet 14 of the power amplifier 16 and the power amplifier test component 15, the impact of cooling on the power amplifier test leads is avoided, increasing the stability and accuracy of the power amplifier test component 15 during testing.

[0055] Specifically, the recycling component includes:

[0056] Condenser 5, which is connected to the side wall of the outer shell, is used to cool the recovered water to form condensate;

[0057] The recovery container 2 is connected to the condenser 5 and is used to input the water to be condensed into the condenser 5.

[0058] In practice, the device of this utility model, by setting up a recovery container 2 and a condenser 5, recovers and cools the condensate after heat exchange, effectively avoiding the waste of condensate and improving the utilization efficiency of condensate. The recovery container 2 is connected to the outer shell to receive the condensate after heat exchange, while the condenser 5 further cools the condensate in the recovery container 2, ensuring that the condensate always maintains a low temperature during the circulation process, thereby improving the heat dissipation effect.

[0059] Specifically, the condensation assembly includes:

[0060] Condensate pump 6, which is connected to the condenser 5, is used to transfer the condensate in the condenser 5.

[0061] A condenser container 1, which is connected to the condensate pump 6, is used to receive the condensate.

[0062] Specifically, the length of the recovery container 2 and the length of the condenser container 1 are less than the length of the outer shell, the width of the recovery container 2 and the width of the condenser container 1 are less than the width of the outer shell, and the size of the recovery container 2 and the size of the condenser container 1 are determined according to the actual size of the outer shell. There are no restrictions here, as long as the side walls of the outer shell can be cooled.

[0063] Specifically, embodiments of the materials used for the recycling container 2 and the condensation container 1 include stainless steel, polytetrafluoroethylene, and aluminum.

[0064] In practice, the device of this utility model is equipped with a condenser container 1 and a condensate pump 6. The condensate pump 6 inputs the cooled condensate into the condenser container 1 to cool the outer shell. By connecting the condensate pump 6 to the bottom surface of the condenser container 1, the condensate is transported upward in the condenser container 1, achieving an effective heat exchange between the condensate and the lower space inside the container, thereby improving the heat dissipation efficiency.

[0065] Specifically, the condensate circulation assembly includes:

[0066] Several first recovery channels 3 are equally spaced on the side wall of the recovery container 2 to allow the condensate after heat exchange to flow into the recovery container 2;

[0067] The second recycling channel 7 is located on the lower surface of the recycling container 2 and is used to recycle the condensate stored at the bottom of the condensate container 1.

[0068] Several first valves 4 are connected to the first recovery channel 3 to control the opening and closing state of the first recovery channel 3;

[0069] The second valve 8 is connected to the second recovery channel 7 and is used to control the opening and closing state of the second recovery channel 7.

[0070] In implementation, the device of this utility model, by setting a first recovery channel 3, a second recovery channel 7, a first valve 4, and a second valve 8, precisely controls the height of condensate in the condensation assembly, ensuring the high efficiency and stability of the heat exchange process. The first recovery channel 3 is evenly spaced on the side wall of the recovery container 2, ensuring that condensate can flow into the recovery container 2 uniformly, reducing the problem of uneven condensation. The second recovery channel 7 is connected to the lower surface of the recovery container 2 and is used to recover the condensate stored at the bottom of the condensation container 1, improving the utilization rate of condensate and the heat dissipation effect. The setting of the first valve 4 and the second valve 8 realizes precise control of the height of condensate in the condensation assembly. The first valve 4 is connected to the first recovery channel 3, and by adjusting the opening of the valve, the speed at which condensate flows into the recovery container 2 can be controlled, thereby adjusting the height of condensate in the condensation assembly. The second valve 8 is connected to the second recovery channel 7 and is used to control the opening and closing state of the second recovery channel 7, realizing the full recovery of condensate.

[0071] Specifically, the connection position between the first recovery channel 3 and the condensation container 1 is above the connection position between the first recovery channel 3 and the recovery container 2.

[0072] Specifically, the first recycling channel 3 has a parallelogram-shaped cross-section in the vertical direction, and the second recycling channel 7 has a square-shaped cross-section in the vertical direction.

[0073] In practice, the device of this utility model controls the flow direction of condensate by setting an inclined first recovery channel 3, ensuring that the condensate can flow smoothly into the recovery container 2, thereby avoiding the accumulation and blockage of condensate in the pipe and improving heat dissipation efficiency.

[0074] Specifically, the detection unit includes a plurality of temperature sensors 10 disposed at equal intervals on the inner wall 13 of the housing in the vertical direction.

[0075] Specifically, the number of temperature sensors 10 is equal to the number of the first recycling channels 3, and each temperature sensor 10 corresponds one-to-one with each first recycling channel 3 along a horizontal line.

[0076] Specifically, the recycling closure condition for the first recycling channel 3 is: the first recycling channel 3 at the same height as the temperature sensor 10 that detects that the temperature inside the container is higher than the set value, and the first recycling channel 3 below it are closed;

[0077] The conditions for opening the first recycling channel 3 are: opening the first recycling channel 3 or more that meet the closing conditions.

[0078] In practice, the device of this utility model, by setting a temperature sensor 10 at the same height as the first recycling channel 3, monitors the temperature of the outer shell in real time and coordinates with the condensation unit to perform heat dissipation treatment in areas corresponding to different heights. This achieves real-time monitoring and dynamic adjustment of the temperature inside the outer shell, further improving the heat dissipation effect and accuracy. The temperature sensor 10 can also provide more accurate temperature data for power amplifier testing, thereby improving the accuracy of the test.

[0079] Specifically, the ventilation assembly includes:

[0080] Ventilation opening 9 is located above the condensation container 1;

[0081] Several ventilation blades 11 are connected to the ventilation opening 9 to control the ventilation state of the ventilation opening 9;

[0082] A starter motor (not shown in the figure) is connected to several of the ventilation blades 11 to provide driving force for the ventilation blades 11.

[0083] Specifically, the ventilation opening condition of the ventilation blade 11 is: the temperature inside the housing detected by the temperature sensor 10 at the highest position exceeds the set value.

[0084] In practice, this utility model introduces a strong downward airflow into the housing by setting up a vent 9, a ventilation blade 11, and a starting motor. This accelerates the airflow inside the housing, further removes the heat generated on the upper part of the device, improves the overall heat dissipation effect, solves the problem of unstable test results caused by the heat generated by the internal devices during the power amplifier test, ensures the stable operation of the equipment in a high-intensity working environment, and achieves improved heat dissipation efficiency.

[0085] Specifically, the length of the condensation container 1 is greater than the length of the recovery container 2.

[0086] In practice, the device of this utility model, by setting a condensation container 1 that is higher than the recovery container 2, allows the condensate to have a larger heat dissipation area in the condensation container 1, prolongs the residence time of the condensate in the condensation container 1, thereby improving the sufficiency of heat exchange and extending the residence time of the condensate in the condensation container 1, thus achieving an improved heat dissipation effect.

[0087] Specifically, the splicing length of the plurality of ventilation blades 11 in the closed state is equal to the length of the ventilation opening 9.

[0088] In practice, the device of this utility model sets the splicing length of the ventilation blades 11 so that the ventilation blades 11 can completely cover the ventilation opening 9 when closed, preventing external dust and debris from entering the interior of the housing and maintaining the cleanliness and heat dissipation efficiency inside the housing.

[0089] Specifically, the working process of this utility model is as follows: when the temperature at each position inside the shell is less than the set value, the second recovery channel 7 is opened and the ventilation blades 11 are closed; after the temperature inside the shell reaches the recovery closing condition of the first recovery channel 3, the first recovery channel 3 is opened, and the condensate pump 6 introduces condensate into the condensate container 1 so that the condensate reaches the first recovery channel 3 that meets the recovery opening condition, thereby cooling the internal space of the shell; when the ventilation blades 11 reach the ventilation opening condition, the ventilation blades 11 are opened.

[0090] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A power amplifier test device based on train number recognition, characterized in that, The application relates to a train number identification loudspeaker testing device, which comprises the following parts: a shell; a detection unit connected with the shell and used for detecting the internal temperature of the shell; a cooling unit connected with the shell and comprising a recovery assembly arranged between the inner wall of the shell and the outer wall of the shell and used for recovering condensate water, a condensing assembly connected with the recovery assembly and used for cooling the inner wall of the shell, a condensate water circulation assembly connected with the recovery assembly and used for introducing the condensate water in the condensing assembly into the recovery assembly, and a ventilation assembly arranged above the condensing assembly and used for ventilating the space in the shell; a power amplifier testing unit arranged in the interior of the shell and comprising a power amplifier testing assembly used for testing a power amplifier for identifying a train number and a wire outlet arranged on the side of the shell far from the condensing assembly and used for providing a connection space for the connection line between the power amplifier testing assembly and the power amplifier.

2. The power amplifier test device based on train number identification according to claim 1, characterized in that, The recovery assembly comprises: a condenser connected with the outer wall of the shell and used for cooling the recovered condensate water to form condensate water; a recovery container connected with the condenser and used for inputting the condensate water into the condenser.

3. The power amplifier test device based on train number recognition of claim 2, wherein, The condensing assembly comprises: a condensate water pump connected with the condenser and used for transmitting the condensate water in the condenser; a condensate container connected with the condensate water pump and used for receiving the condensate water.

4. The power amplifier test device based on train number identification according to claim 3, characterized in that, The condensate water circulation assembly comprises: a plurality of first recovery channels equidistantly arranged on the side wall of the recovery container and used for making the heat-exchanged condensate water flow into the recovery container; a second recovery channel arranged on the lower surface of the recovery container and used for recovering the condensate water stored at the bottom of the condensate container; a plurality of first valves connected with the first recovery channels and used for controlling the opening and closing states of the first recovery channels; a second valve connected with the second recovery channel and used for controlling the opening and closing state of the second recovery channel.

5. The power amplifier test device based on train number identification according to claim 4, characterized in that, The connection position of the first recovery channels with the condensate container is above the connection position of the first recovery channels with the recovery container.

6. The power amplifier test device based on train number identification according to claim 5, characterized in that, The detection unit comprises a plurality of temperature sensors equidistantly arranged on the inner wall of the shell in the vertical direction.

7. The power amplifier test device based on train number identification according to claim 6, characterized in that, The number of the temperature sensors is equal to the number of the first recovery channels, and a single temperature sensor corresponds to a single first recovery channel along a horizontal line.

8. The power amplifier test device based on train number identification according to claim 7, characterized in that, The ventilation assembly comprises: a ventilation port arranged above the condensate container; a plurality of ventilation blades connected with the ventilation port and used for controlling the ventilation state of the ventilation port; a starting motor connected with the plurality of ventilation blades and used for providing driving force for the ventilation blades.

9. The power amplifier test apparatus based on train number identification according to claim 8, characterized in that, The length of the condensate container is greater than the length of the recovery container.

10. The power amplifier test device based on train number identification according to claim 9, characterized in that, The splicing length of the plurality of ventilation blades in the closed state is equal to the length of the ventilation port.

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