Air conditioner test connection device and air conditioner test system

Abstract

The application discloses an air conditioner test connection device and an air conditioner test system. The air conditioner test connection device comprises a rack and a first docking mechanism. The rack is internally provided with a mounting position. Two first docking mechanisms are separately arranged on both sides of the rack along the width direction of the rack and are mirror image arranged. The first docking mechanism comprises a box body arranged on the side of the rack. The box body is provided with a first through hole facing the side of the rack. One end of the box body along the length direction of the rack is provided with a second through hole. The box body is further provided with a docking frame facing the rack. The box body is internally provided with a driving mechanism for driving the docking frame to move towards or away from the mounting position. The docking frame and the second through hole are further connected through a telescopic air pipe. The high-speed rail air conditioner unit can be placed in the mounting position. The docking frame is driven by the driving mechanism to be docked with the return air outlet, so that the return air outlet is communicated with the box body. The external test equipment can be respectively docked with the second through hole and the air outlet on the same side, and the high-speed rail air conditioner unit can be tested.

Description

Technical Field

[0001] This application relates to the field of train air conditioning testing, and in particular to an air conditioning testing connection device. Background Technology

[0002] In the performance testing of railway passenger car air conditioning systems, mature testing technologies and equipment have been developed for the maintenance of air conditioning systems on conventional trains. In recent years, my country's high-speed rail has developed rapidly, and high-speed train air conditioning units have entered their major overhaul period. Existing testing equipment for conventional train air conditioning units typically has two sets of ducts, one connected to the air outlet of the air conditioning unit, and the other connected to the return air outlet. High-speed train air conditioning units have return air outlets on both sides and air outlets on the other side. The two sides where the air outlets are located are adjacent to the sides where the air outlets are located. After the air conditioning unit is turned on, the air inside the unit passes through the two sets of ducts and enters the testing equipment to test air quality indicators and verify whether the air conditioning unit's function meets standards. However, because the air outlets and return air outlets of conventional train air conditioning units are located on the same side, existing testing equipment cannot be easily integrated with the air conditioning systems on high-speed trains. Utility Model Content

[0003] This application proposes an air conditioning test connection device, which can be used to connect test equipment with high-speed rail air conditioning units, making the test equipment compatible with both conventional train and high-speed rail air conditioning units.

[0004] This application proposes an air conditioner testing connection device, comprising:

[0005] The frame has internal mounting positions for installing air conditioning units;

[0006] The first docking mechanism is arranged along the width of the frame and is located on both sides of the frame. The two first docking mechanisms are mirror images of each other and are used to dock with the return air inlets on opposite sides of the air conditioning unit.

[0007] The first docking mechanism includes:

[0008] A housing is provided on the side of the frame, the side of the housing facing the frame has a first through hole, and one end of the housing along the length of the frame has a second through hole;

[0009] A docking frame is provided on the side of the housing facing the frame;

[0010] The telescopic duct is connected at one end to the docking frame and at the other end to the second through hole;

[0011] A drive component for driving the docking frame to move toward or away from the mounting position.

[0012] In some embodiments, the first docking mechanism further includes a sliding component that connects the docking frame and the housing, for sliding connection between the docking frame and the housing.

[0013] In some embodiments, the sliding component includes:

[0014] A first mounting bracket is disposed inside the housing and directly opposite the first through hole;

[0015] The first guide rod is slidably connected to the first mounting bracket, and the docking frame is located at the end of the first guide rod away from the housing;

[0016] The drive component is mounted on the first mounting bracket, and the drive end is connected to the docking frame.

[0017] In some embodiments, the first docking mechanism further includes:

[0018] The second mounting bracket is disposed between the first mounting bracket and the docking frame, and is slidably connected to the first guide rod;

[0019] The first elastic element is sleeved outside the first guide rod, with one end abutting against the second mounting bracket and the other end abutting against the docking frame;

[0020] The drive end of the drive component is connected to the second mounting bracket.

[0021] In some embodiments, the docking frame is further provided with an annular groove on the side facing the mounting position, and a first sealing ring is provided in the annular groove.

[0022] In some embodiments, the air conditioning test connection device further includes a second docking mechanism disposed on the lower side of the installation position, the second docking mechanism being used to dock with the condensate outlet of the air conditioning unit.

[0023] In some embodiments, the second docking mechanism includes:

[0024] A collection box is provided on the frame and located below the mounting position;

[0025] The second sealing ring is provided around the upper opening of the collection box and is used to connect with the condensate outlet;

[0026] A drain pipe is located on the lower side of the collection box and is connected to the drain pipe.

[0027] In some embodiments, the second docking mechanism further includes:

[0028] The second guide rod is vertically mounted on the frame and slidably connected to the frame, and the collection box is located at the upper end of the second guide rod;

[0029] The second elastic element is sleeved on the outer periphery of the second guide rod, with one end abutting against the frame and the other end abutting against the collection box.

[0030] In some embodiments, the air conditioning test connection device further includes a drive motor located at the bottom of the frame and a drive wheel located on the shaft of the drive motor.

[0031] This application also proposes an air conditioning testing system, including an air conditioning testing connection device and testing equipment that interfaces with the air conditioning testing connection device.

[0032] The air conditioning test connection device in this embodiment includes a frame and a first docking mechanism. An installation position is provided inside the frame. Two first docking mechanisms are located on opposite sides of the frame along its width and are arranged in a mirror image. Each first docking mechanism includes a housing located on the side of the frame. The housing has a first through hole on its side facing the frame and a second through hole at one end along the length of the frame. A docking frame is also provided on the side of the housing facing the frame. Inside the housing is a drive mechanism that moves the docking frame toward or away from the installation position. The docking frame is connected to the second through hole via a telescopic duct. A high-speed rail air conditioning unit can be placed in the installation position. The drive mechanism drives the docking frame to dock with the return air vent, connecting the return air vent to the housing. External test equipment can dock with the second through hole and the air outlet on the same side to test the high-speed rail air conditioning unit, making the test equipment compatible with both types of air conditioning units. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of an air conditioning test connection device in one embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the air conditioning test connection device in another embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of the first docking mechanism in one embodiment of this application;

[0036] Figure 4 This is a schematic diagram of the structure of the first docking mechanism in another embodiment of this application.

[0037] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The solutions in the embodiments of this application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] It should be noted that all directional indicators in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0040] It should also be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0041] Furthermore, the descriptions involving "first," "second," etc., in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0042] This application proposes an air conditioning test connection device, referring to... Figures 1 to 4 The air conditioning test connection device frame 20 has an internal mounting position 21 for installing the air conditioning unit 10; two first docking mechanisms 30 are arranged along the width direction of the frame 20 and are respectively located on both sides of the frame 20. The two first docking mechanisms 30 are mirror-shaped and are used to dock with the return air inlets 11 on opposite sides of the air conditioning unit 10; the first docking mechanism 30 includes: a housing 31 located on the side of the frame 20, with a first through hole 311 on the side of the housing 31 facing the frame 20, and a second through hole 312 at one end of the housing 31 along the length direction of the frame 20; a docking frame 32 located on the side of the housing 31 facing the frame 20; a telescopic air duct 33, with one end connected to the docking frame 32 and the other end connected to the second through hole 312; and a drive assembly 36 for driving the docking frame 32 to move toward or away from the mounting position 21.

[0043] In this embodiment, the frame 20 adopts a high-strength steel frame structure to ensure stability when supporting the high-speed rail air conditioning unit 10. The mounting position 21 is equipped with positioning pins or guide grooves to facilitate quick and accurate positioning of the air conditioning unit 10. The first docking mechanisms 30 on both sides are arranged in a mirror-symmetrical manner, adapting to the common double-sided return air structure of high-speed rail air conditioning. The housing 31 is a sealed cavity, forming a stable static pressure zone inside to prevent airflow leakage. The telescopic duct 33 is made of multi-layer composite materials (such as PVC coated fabric + metal spiral skeleton), possessing good flexibility, pressure resistance, and airtightness, maintaining cross-sectional deformation under compression and tension. The drive assembly 36 is typically an electric push rod, cylinder, or servo motor combined with a lead screw structure, installed inside the housing 31 or on the side wall of the frame 20, with the output end connected to the docking frame 32 or sliding assembly to achieve precise displacement control, ensuring a smooth and reliable docking process. This structure achieves simultaneous automatic docking of the double-sided return air inlets 11, solving the problems of low efficiency and poor sealing in traditional manual connections. The two-stage conduction design between the telescopic duct 33 and the housing 31 allows external testing equipment to complete all air path connections simply by connecting the second through hole 312 and the air outlet 12 on the same side of the frame 20, greatly simplifying the connection operation. This is particularly suitable for testing different models of air conditioning units 10 (such as single-sided air outlet and double-sided return air structures), significantly improving the compatibility and versatility of the testing equipment. The high-speed rail air conditioning unit 10 can be placed in the mounting position 21, and the docking frame 32 is driven by the drive mechanism to dock with the return air outlet 11, allowing the telescopic duct 33 to connect the return air outlet 11 and the housing 31. At this point, the second through hole 312 and the air outlet 12 are located on the same side of the frame 20. External testing equipment can then dock with the second through hole 312 and the air outlet 12 on the same side to test the high-speed rail air conditioning unit 10, making the testing equipment compatible with two types of air conditioning units 10.

[0044] In some embodiments, the first docking mechanism 30 further includes a sliding component that connects the docking frame 32 and the housing 31, enabling a sliding connection between the docking frame 32 and the housing 31. The sliding component ensures that the docking frame 32 maintains parallel movement during the driving process, preventing skewness that could lead to sealing failure or structural jamming. Its guiding accuracy directly affects the docking success rate. A linear guide rail, linear bearing, or guide rod combined with a sliding sleeve is preferred, offering advantages such as low friction, long lifespan, and strong resistance to off-center loads. Introducing the sliding component makes the docking process smoother and more stable, especially under heavy loads or high-frequency testing scenarios, effectively reducing vibration and impact and extending equipment lifespan. Simultaneously, it improves the repeatability of docking positioning, ensuring consistent sealing for each connection.

[0045] In some embodiments, the sliding assembly includes: a first mounting bracket 34, disposed within the housing 31 and directly opposite the first through hole 311; a first guide rod 35, slidably connected to the first mounting bracket 34; and a docking frame 32 disposed at the end of the first guide rod 35 away from the housing 31; and a drive assembly 36 disposed on the first mounting bracket 34, with its drive end connected to the docking frame 32. The first mounting bracket 34 serves as the fixed base of the sliding system and is typically welded or bolted to the internal reinforcing ribs of the housing 31 to ensure structural rigidity. The first guide rod 35 is a high-precision ground cylindrical rod with a chrome-plated surface to enhance wear resistance. The docking frame 32 is mounted on the guide rod via a sliding block or linear bearing, forming a stable single-degree-of-freedom translation mechanism. One end of the drive assembly 36 (such as an electric push rod) is hinged to the first mounting bracket 34, and the other end is hinged to the docking frame 32; the pushing and pulling action drives the entire frame to move back and forth. Furthermore, two parallel mounting rods 321 can be installed in the middle area of ​​the docking frame 32, with two corresponding first guide rods 35 connected one-to-one with the two mounting rods 321. This structure has a compact layout and reasonable force distribution. The guide rods bear the lateral force, while the drive assembly 36 only bears the axial thrust, extending the life of the actuator. At the same time, it facilitates maintenance and component replacement, making it suitable for industrial-grade continuous operation environments.

[0046] In some embodiments, the first docking mechanism 30 further includes: a second mounting bracket 37, disposed between the first mounting bracket 34 and the docking frame 32, and slidably connected to the first guide rod 35; a first elastic member 38, sleeved on the first guide rod 35, with one end abutting against the second mounting bracket 37 and the other end abutting against the docking frame 32; and the driving end of the drive assembly 36 connected to the second mounting bracket 37. This design introduces a "floating docking" mechanism. When the docking frame 32 approaches the return air inlet 11 of the air conditioning unit 10, the drive assembly 36 stops advancing, and the docking frame 32 continues to advance slowly due to the pre-pressure of the first elastic member 38, achieving a flexible fit. Even if there are slight deviations in the installation of the air conditioning unit 10 or unevenness in the plane of the return air inlet 11, the elastic member can automatically compensate for the gap, ensuring that the sealing ring is completely fitted. The second mounting bracket 37 acts as a drive transmission medium, transmitting the driving force to the docking frame 32 after buffering through the elastic member, avoiding rigid collisions that could damage the equipment or the sealing structure. This significantly improves the safety and sealing reliability of the docking process, preventing the sealing ring from being crushed or the return air inlet 11 from being deformed due to hard contact. It is suitable for rapid switching tests of various specifications of air conditioning units 10, and has good fault tolerance and adaptability.

[0047] In some embodiments, the docking frame 32 is further provided with an annular groove on the side facing the mounting position 21, and a first sealing ring is provided in the annular groove. The depth of the annular groove is slightly smaller than the cross-sectional diameter of the sealing ring, ensuring that the sealing ring slightly protrudes from the docking surface in the uncompressed state. When the docking frame 32 presses against the return air inlet 11 of the air conditioning unit 10, the sealing ring undergoes elastic deformation under pressure, filling the microscopic gap between the flange of the return air inlet 11 and the docking frame 32, forming an airtight seal. The sealing ring material has aging resistance, temperature change resistance, and ozone resistance properties, adapting to the extreme operating conditions in air conditioning testing. It effectively prevents airflow leakage during testing, ensuring accurate measurement of key parameters such as air volume and air pressure. Actual measurements show that after adopting this sealing structure, the air leakage rate can be controlled below 0.5%, meeting the requirements of high-precision testing.

[0048] In some embodiments, the air conditioning test connection device further includes a second docking mechanism located below the mounting position 21. This second docking mechanism is used to connect with the condensate outlet of the air conditioning unit 10. During the cooling test, the air conditioning unit 10 generates condensate. If this condensate is not drained in time, it may cause water accumulation, corrosion, or test interruption. The second docking mechanism automatically collects and drains the condensate, ensuring test continuity. This achieves synchronous automatic connection of the gas and liquid circuits, improving the level of test automation, reducing manual intervention, and avoiding the risk of malfunctions caused by poor drainage.

[0049] In some embodiments, the second docking mechanism includes: a collection box 41, disposed on the frame 20 and located below the mounting position 21; a second sealing ring, disposed around the upper opening of the collection box 41, for docking with the condensate outlet; and a drain pipe, disposed below the collection box 41 and connected to the drain pipe. The collection box 41 is made of stainless steel or engineering plastic, with a smooth inner wall for easy drainage. The structure of the second sealing ring is similar to that of the first sealing ring, ensuring no leakage when the condensate outlet is docked. The drain pipe is equipped with a manual or electric valve to control the timing of drainage. This effectively prevents condensate overflow from polluting the environment or affecting equipment operation, while also facilitating subsequent water quality testing or flow measurement.

[0050] In some embodiments, the second docking mechanism further includes: a second guide rod, vertically mounted on the frame 20 and slidably connected to the frame 20, with a collection box 41 located at the upper end of the second guide rod; and a second elastic member, sleeved on the outer periphery of the second guide rod, with one end abutting against the frame 20 and the other end abutting against the collection box 41. This structure enables the collection box 41 to float vertically. When the air conditioning unit 10 is installed in place, its condensate outlet presses downwards against the collection box 41, compressing the second elastic member to achieve automatic centering and sealing. The elastic member provides a continuous upward preload, ensuring that the sealing ring is always under pressure. This solves the problem of condensate pipe inlet height differences between different models of air conditioning units 10, achieving "adaptive docking" without the need for manual adjustment of the collection box 41 height, thus improving compatibility and automation.

[0051] In some embodiments, the air conditioning test docking device further includes a drive motor located at the bottom of the frame 20, and drive wheels mounted on the drive motor's shaft. The drive motor is a DC servo or stepper motor, which, in conjunction with a reducer, outputs sufficient torque. The drive wheels are typically polyurethane-coated wheels, providing good grip and shock absorption. The frame 20 is also equipped with casters or steering wheels, forming a complete mobile platform. Automatic movement, positioning, and alignment can be achieved via remote control or PLC control. This makes the entire test docking device mobile, allowing it to be flexibly transferred to different test stations or workshops, adapting to the testing needs of multiple production lines and models, and improving equipment utilization.

[0052] This application also proposes an air conditioning testing system, including an air conditioning testing connection device and testing equipment that interfaces with the air conditioning testing connection device. The testing equipment is connected via a pipe to the second through-hole 312 (return air side) of the first docking mechanism 30 and the air outlet 12 (supply air side) on the frame 20, and monitors parameters such as air volume, air pressure, temperature, and humidity in real time. The control system automatically executes the testing process according to a preset program and generates a test report. This forms a complete automated testing closed loop, significantly improving testing efficiency and data accuracy, and is suitable for factory testing and R&D verification of high-speed rail air conditioning units 10.

[0053] In this embodiment, the workflow of the air conditioning test connection device and the air conditioning test system is as follows:

[0054] Preparation phase: Power on the system and check that all drive components 36 and sensors are in normal condition; confirm that the external test equipment has been connected to the second through hole 312 and the air outlet 12 on the same side of the rack 20.

[0055] Install the air conditioning unit 10: hoist or push the air conditioning unit 10 to be tested into the installation position 21 in the frame 20, fix it with the positioning structure, and ensure that the return air vent 11 and the condensate outlet are aligned with the corresponding docking mechanism.

[0056] Initiating the docking procedure: The drive component 36 is activated, pushing the docking frame 32 of the first docking mechanism 30 forward along the first guide rod 35; when it approaches the return air vent 11, the first elastic element 38 begins to compress, achieving a flexible fit; the first sealing ring completely presses against the flange of the return air vent 11, forming an airtight connection; at the same time, the second docking mechanism automatically rises under the gravity of the air conditioning unit 10, and the second sealing ring seals and docks with the condensate outlet.

[0057] Start the test: The external test equipment is started and connected to the air outlet 12 and the second through hole 312 of the air conditioning unit 10 respectively, and the return air parameters are collected and the air supply performance is monitored at the same time; the condensate is discharged through the collection box 41 and the drain pipe.

[0058] Test completed: After the test, the drive component 36 reverses its movement, causing the docking frame 32 to return to its original position; the collection box 41 resets under the action of the second elastic element; the air conditioning unit 10 can be safely disassembled.

[0059] Move or switch: If other units 10 need to be tested, they can be moved to the next work station as a whole via the drive motor control device.

[0060] The air conditioning test connection device provided in this application achieves the following through innovative designs: a double-sided mirror docking mechanism, telescopic air duct 33 for conduction, elastic buffer sealing, automatic condensate discharge, and a movable frame 20. These features enable efficient, automatic, and reliable gas and liquid circuit connection; improved compatibility of the test equipment with different types of air conditioning units 10; significantly reduced manual operation intensity and test preparation time; ensured the accuracy and repeatability of test data; and suitability for high-requirement test scenarios such as high-speed rail and rail transit.

[0061] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. An air conditioner testing connection device, characterized in that, include: The frame has internal mounting positions for installing air conditioning units; The first docking mechanism is arranged along the width of the frame and is located on both sides of the frame. The two first docking mechanisms are mirror images of each other and are used to dock with the return air inlets on opposite sides of the air conditioning unit. The first docking mechanism includes: A housing is provided on the side of the frame, the side of the housing facing the frame has a first through hole, and one end of the housing along the length of the frame has a second through hole; A docking frame is provided on the side of the housing facing the frame; The telescopic duct is connected at one end to the docking frame and at the other end to the second through hole; A drive component for driving the docking frame to move toward or away from the mounting position.

2. The air conditioning test connection device according to claim 1, characterized in that, The first docking mechanism further includes a sliding component, which connects the docking frame and the housing, and is used to make the docking frame and the housing slidably connected.

3. The air conditioning test connection device according to claim 2, characterized in that, The sliding component includes: A first mounting bracket is disposed inside the housing and directly opposite the first through hole; The first guide rod is slidably connected to the first mounting bracket, and the docking frame is located at the end of the first guide rod away from the housing; The drive component is mounted on the first mounting bracket, and the drive end is connected to the docking frame.

4. The air conditioning test connection device according to claim 3, characterized in that, The first docking mechanism also includes: The second mounting bracket is disposed between the first mounting bracket and the docking frame, and is slidably connected to the first guide rod; The first elastic element is sleeved outside the first guide rod, with one end abutting against the second mounting bracket and the other end abutting against the docking frame; The drive end of the drive component is connected to the second mounting bracket.

5. The air conditioning test connection device according to claim 4, characterized in that, The docking frame is also provided with an annular groove on the side facing the mounting position, and a first sealing ring is provided in the annular groove.

6. The air conditioning test connection device according to claim 5, characterized in that, The air conditioning test connection device also includes a second docking mechanism located on the lower side of the installation position, which is used to connect with the condensate outlet of the air conditioning unit.

7. The air conditioning test connection device according to claim 6, characterized in that, The second docking mechanism includes: A collection box is provided on the frame and located below the mounting position; The second sealing ring is provided around the upper opening of the collection box and is used to connect with the condensate outlet; A drain pipe is located on the lower side of the collection box and is connected to the drain pipe.

8. The air conditioning test connection device according to claim 7, characterized in that, The second docking mechanism also includes: The second guide rod is vertically mounted on the frame and slidably connected to the frame, and the collection box is located at the upper end of the second guide rod; The second elastic element is sleeved on the outer periphery of the second guide rod, with one end abutting against the frame and the other end abutting against the collection box.

9. The air conditioning test connection device according to any one of claims 1 to 8, characterized in that, The air conditioning test connection device also includes a drive motor located at the bottom of the frame, and a drive wheel located on the shaft of the drive motor.

10. An air conditioning testing system, characterized in that, It includes the air conditioning test connection device according to any one of claims 1 to 9, and the test equipment that is connected to the air conditioning test connection device.

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