Automobile air conditioner performance detection device

Abstract

The utility model discloses an automobile air conditioner performance detection device which is arranged in a silence room, a rack is installed in the silence room, and a speed chain conveying line is arranged below the rack. A jacking assembly is arranged below the double-speed chain conveying line, and a tool bottom plate is arranged on the double-speed chain conveying line; a defrosting and foot blowing detection assembly is arranged above the machine frame, and a left foot blowing detection assembly and a right foot blowing detection assembly are arranged on the two sides of the defrosting and foot blowing detection assembly respectively. According to the utility model, through integration of the defrosting foot blowing detection assembly, the left foot blowing detection assembly and the right foot blowing detection assembly, air volume testing can be carried out on a plurality of air outlets of the automobile air conditioning box at the same time, and the problems of limitation and inconsistency of single-channel measurement are avoided, so that a more comprehensive and systematic test result is provided; through cooperation of the double-speed chain conveying line, the jacking assembly and the industrial control all-in-one machine, rapid conveying, positioning and testing of the air conditioner box are achieved, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning testing technology, and in particular to an automotive air conditioning performance testing device. Background Technology

[0002] With the booming development of the automotive industry, it has not only brought unprecedented development opportunities to related industrial chains, but also placed more stringent demands on technological innovation and quality improvement. As an indispensable key component of both gasoline and new energy vehicles, automotive air conditioning not only directly affects driving safety but is also an important indicator of passenger comfort. Against this backdrop, the design optimization of the automotive air conditioning unit is particularly crucial, especially the precise distribution of airflow from each vent, which profoundly impacts the overall efficiency of the air conditioning system and the temperature uniformity within the passenger compartment.

[0003] Before automotive air conditioning units enter mass production and the market, comprehensive and detailed performance testing and analysis are essential to ensure product quality. However, current testing equipment has limitations in its detection capabilities, particularly for testing the airflow of each vent within the air conditioning unit. This often relies on single-channel measuring devices to perform the tests one by one. This approach is not only inefficient but also fails to guarantee consistency in the outlet status and testing timeliness of all vents during testing, thus failing to provide manufacturers with a comprehensive, systematic, and reliable set of test results. This situation not only limits the accuracy of air conditioning unit performance evaluation but also hinders the continuous progress and innovation of automotive air conditioning technology. Summary of the Invention

[0004] The purpose of this invention is to provide an automotive air conditioning performance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automotive air conditioning performance testing device is installed in a soundproof chamber. A frame is mounted inside the chamber, with a double-speed chain conveyor line located beneath the frame. Two sets of support frames are symmetrically arranged on the inner side beneath the frame, positioned below the double-speed chain conveyor line, with their upper ends fixedly connected to the conveyor line via connecting plates. Windows are symmetrically positioned on both side walls of the soundproof chamber, each window adapted to the double-speed chain conveyor line. A lifting assembly is located between the two sets of support frames, fixedly connected to the support frames. A tooling base plate is provided on the double-speed chain conveyor line. An air conditioning unit is placed on top of the tooling base plate; the tooling base plate is movably connected to the double-speed chain conveyor line, and the lifting component is located below the tooling base plate; a defrost foot blowing detection component is provided on top of the frame, and a left foot blowing detection component and a right foot blowing detection component are respectively provided on both sides of the defrost foot blowing detection component, and the left foot blowing detection component and the right foot blowing detection component have the same structure; an industrial control integrated computer is provided at the front end of the frame, and the industrial control integrated computer is electrically connected to the double-speed conveyor line, the lifting component, the defrost foot blowing detection component, the left foot blowing detection component, and the right foot blowing detection component.

[0007] Preferably, the defrosting foot blowing detection component includes a fixed plate, wherein the fixed plate is fixedly connected to the upper end of the frame; a telescopic cylinder is provided in the middle of the fixed plate, wherein a movable plate is provided below the fixed plate; the top of the piston rod of the telescopic cylinder passes downward through the fixed plate and is fixedly connected to a floating joint, wherein the end of the floating joint away from the piston rod is fixedly connected to the movable plate through a connecting seat.

[0008] Preferably, two air guide covers are symmetrically arranged below the movable plate, and a slide plate is provided at the upper end of the air guide cover; limit blocks are symmetrically installed on both sides of the slide plate, and the limit blocks are fixedly connected to the movable plate; a sliding groove is opened on the side of the limit block near the slide plate, and the slide plate is placed in the sliding groove and slides along the groove opening direction.

[0009] Preferably, a waist hole is provided on the movable plate at a position corresponding to the air guide hood, and a mounting base is provided above the waist hole; an air guide pipe is provided on the mounting base, wherein the air inlet end of the air guide pipe passes through the waist hole and communicates with the top of the air guide hood, and a first wind speed sensor is provided at the air outlet end of the air guide pipe.

[0010] Preferably, elongated holes are symmetrically provided on both sides of the waist hole, wherein a triangular bolt is provided in the elongated hole, and the triangular bolt passes through the elongated hole and is threadedly connected to the slide plate.

[0011] Preferably, the fixed plate is provided with a first elliptical flange linear bearing at each of the four corners, wherein each of the first elliptical flange linear bearings is provided with a first guide shaft, and the lower end of the first guide shaft is fixedly connected to the movable plate.

[0012] Preferably, the left foot blowing detection component includes a right-angle mounting plate, wherein the horizontal top edge of the right-angle mounting plate is fixedly connected to the upper end of the frame; a dual-axis cylinder is fixedly mounted on the vertical side of the right-angle mounting plate, wherein a second wind speed sensor is provided at the top of the piston rod of the dual-axis cylinder.

[0013] Preferably, the lifting assembly includes a cylinder support plate, wherein the two sides of the cylinder support plate are fixedly connected to the upper end of the support frame respectively; a lifting cylinder is provided below the cylinder support plate, wherein a lifting plate is provided above the cylinder support plate, and the top end of the piston rod of the lifting cylinder passes through the cylinder support plate upward and is fixedly connected to the lifting plate.

[0014] Preferably, the cylinder support plate is provided with a second elliptical flange linear bearing at each of its four corners, wherein each second elliptical flange linear bearing is provided with a second guide shaft, and the top end of the second guide shaft is fixedly connected to the lifting plate.

[0015] Preferably, the upper end of the lifting plate is provided with two positioning pins, which are arranged diagonally; the lower end of the tooling base plate is provided with two positioning sleeves, which correspond one-to-one with the positioning pins; and lifting pads are provided around the upper periphery of the lifting plate, which abut against the lower end of the tooling base plate.

[0016] Preferably, the double-speed chain conveyor is provided with two blocking cylinders at intervals along its conveying direction, wherein the blocking cylinders are fixedly connected to the double-speed chain conveyor via support blocks; the blocking cylinders are respectively provided at both ends of the lifting assembly, wherein the distance between the two blocking cylinders is equivalent to the length of the tooling base plate provided above the lifting assembly; the tooling base plate is provided with a limit groove on the side near the blocking cylinder, wherein a shock-absorbing block is provided in the limit groove.

[0017] Preferably, the front end of the soundproof room is provided with a safety door, which has a transparent observation window.

[0018] Compared with existing technologies, the advantages of this invention are as follows: By integrating defrost foot blowing detection components, left foot blowing detection components, and right foot blowing detection components, this invention can simultaneously test the airflow of multiple air outlets (including defrost outlets and left and right foot blowing outlets) of the automotive air conditioning unit, avoiding the limitations and inconsistencies of single-channel measurement, thus providing more comprehensive and systematic test results; by using a double-speed chain conveyor line, lifting components, and an integrated industrial control computer, rapid transportation, positioning, and testing of the air conditioning unit are achieved, greatly improving testing efficiency; at the same time, the automated testing process reduces manual operation and improves the accuracy and stability of the test; through the design of structures such as telescopic cylinders, movable plates, air guide hoods, and sliding plates, the detection components can be flexibly adjusted to adapt to different models of vehicles. The automotive air conditioning unit enhances the versatility and applicability of the device. The inclusion of a first and second wind speed sensor allows for precise measurement of the wind speed at each air outlet, providing manufacturers with detailed and reliable test data. Simultaneously, the integrated industrial control computer can display and record test results in real time, facilitating subsequent analysis and improvement. The soundproof chamber design provides a relatively enclosed and quiet environment for testing, reducing external interference. Furthermore, the safety door and transparent observation window ensure operator safety while facilitating observation of the testing process. This new automotive air conditioning performance testing device solves the problems of existing testing devices in terms of comprehensiveness, timeliness, consistency, and ease of operation, providing a more scientific, efficient, and accurate solution for the performance evaluation of automotive air conditioning units. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2a , 2b This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the defrosting and foot blowing detection component of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the mounting base and the movable plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the air guide cover and the movable plate of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the left blow-foot detection component of this utility model;

[0025] Figure 7 This is a schematic diagram of the assembly of the double-speed chain conveyor and the lifting component of this utility model;

[0026] Figure 8This is a schematic diagram of the lifting assembly of this utility model;

[0027] Figure 9 This is a schematic diagram of the bottom structure of the lifting component of this utility model;

[0028] Figure 10 This is a schematic diagram of the bottom structure of the tooling base plate of this utility model;

[0029] Figure 11 This is a schematic diagram of the structure of the blocking cylinder of this utility model.

[0030] The components include: 1. Soundproof room; 2. Rack; 3. Double-speed chain conveyor; 4. Support frame; 5. Connecting plate; 6. Window; 7. Lifting assembly; 701. Cylinder support plate; 702. Lifting cylinder; 703. Lifting plate; 8. Tooling base plate; 9. Air conditioning unit; 10. Defrosting foot blowing detection assembly; 101. Fixed plate; 102. Telescopic cylinder; 103. Movable plate; 104. Floating joint; 105. Connecting seat; 106. Air guide cover; 107. Slide plate; 108. Limit block; 109. Slide groove; 11. Left foot blowing detection assembly; 1101. Right-angle mounting plate; 1102. 11. Dual-axis cylinder; 12. Second wind speed sensor; 13. Right foot blower detection assembly; 14. Industrial control all-in-one computer; 15. Waist hole; 16. Mounting base; 17. Air duct; 18. First wind speed sensor; 19. Long strip hole; 20. Triangular bolt; 21. First elliptical flange linear bearing; 22. First guide shaft; 23. Second elliptical flange linear bearing; 24. Second guide shaft; 25. Positioning pin; 26. Positioning sleeve; 27. Lifting pad; 28. Blocking cylinder; 29. ​​Support block; 30. Limiting groove; 31. Shock absorber block; 32. Safety door; 33. Transparent observation window. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Please refer to the following: Figures 1 to 11 To achieve the above objectives, this utility model provides the following technical solution:

[0033] An automotive air conditioning performance testing device is installed in a soundproof chamber 1. A frame 2 is installed inside the soundproof chamber 1, with a double-speed chain conveyor 3 located below the frame 2. Two sets of support frames 4 are symmetrically arranged on the inner side below the frame 2, with the support frames 4 positioned below the double-speed chain conveyor 3 and their upper ends fixedly connected to the double-speed chain conveyor 3 via connecting plates 5. Windows 6 are symmetrically opened on the left and right side walls of the soundproof chamber 1, each window 6 being adapted to the double-speed chain conveyor 3. A lifting assembly 7 is provided between the two sets of support frames 4, with the lifting assembly 7 fixedly connected to the support frames 4. A tooling base plate 8 is provided on the double-speed chain conveyor 3. An air conditioning unit 9 is placed on top; the tooling base plate 8 is movably connected to the double-speed chain conveyor line 3, wherein the lifting component 7 is located below the tooling base plate 8; a defrost foot blowing detection component 10 is provided on the top of the frame 2, wherein a left foot blowing detection component 11 and a right foot blowing detection component 12 are respectively provided on both sides of the defrost foot blowing detection component 10, and the left foot blowing detection component 11 and the right foot blowing detection component 12 have the same structure; an industrial control all-in-one computer 13 is provided at the front end of the frame 2, wherein the industrial control all-in-one computer 13 is electrically connected to the double-speed chain conveyor line 3, the lifting component 7, the defrost foot blowing detection component 10, the left foot blowing detection component 11 and the right foot blowing detection component 12 respectively.

[0034] Device installation and commissioning: First, install the entire automotive air conditioning performance testing device in the designated quiet room 1, ensuring that all components are securely installed and correctly connected; then, commission the industrial control integrated computer 13 to ensure that its electrical connection with each testing component (defrost foot blowing testing component 10, left foot blowing testing component 11, right foot blowing testing component 12), double speed chain conveyor line 3, and lifting component 7 is normal and communication is smooth.

[0035] Preparation of air conditioning unit 9: Place the car air conditioning unit 9 to be tested on the tooling base plate 8 to ensure that the air conditioning unit 9 is fixed firmly and will not be displaced or damaged due to vibration during transportation;

[0036] Conveying and Positioning: The double-speed chain conveyor 3 is started, which drives the tooling base plate 8 to carry the air conditioning unit 9 slowly forward along the conveying direction; when the air conditioning unit 9 reaches the inspection area, the double-speed chain conveyor 3 decelerates or stops, and at the same time, the lifting component 7 is started to lift the tooling base plate 8 and the air conditioning unit 9 to the predetermined height for subsequent inspection operations; at this time, the industrial control integrated computer 13 monitors the position of the air conditioning unit 9 in real time through sensors to ensure accurate positioning;

[0037] Detection component preparation: After the air conditioning unit 9 is lifted into place, the defrost foot blowing detection component 10, the left foot blowing detection component 11 and the right foot blowing detection component 12 begin to prepare for detection; these detection components are adjusted to the optimal detection position through their respective drive mechanisms to ensure that the air volume information of each air outlet of the air conditioning unit 9 can be accurately captured.

[0038] Airflow detection: After the defrost foot blowing detection component 10, the left foot blowing detection component 11 and the right foot blowing detection component 12 are ready, the industrial control computer 13 issues a command to start the first wind speed sensor 17 on the defrost foot blowing detection component 10 and the second wind speed sensor 1103 on the left foot blowing detection component 11 and the right foot blowing detection component 12, to start measuring the wind speed of each air outlet of the air conditioning unit 9 in real time, and transmit the data to the industrial control computer 13 in real time for processing and analysis;

[0039] Data recording and analysis: The industrial control computer 13 receives and processes wind speed data from various detection components, and evaluates the performance of the air conditioning unit 9 according to preset algorithms and standards; at the same time, the industrial control computer 13 can also display the detection data on the screen in real time for operators to view and record.

[0040] Lifting component 7 resets: After the inspection is completed, lifting component 7 starts the reset operation, slowly lowering the tooling base plate 8 and air conditioning box 9 back to their original positions; then, the double-speed chain conveyor line 3 restarts, transporting the tooling base plate 8 and air conditioning box 9 to the next process or exit position;

[0041] Test result output: The industrial control all-in-one computer 13 outputs the test data and analysis results to the designated storage device or printing device for manufacturers or quality management departments to conduct subsequent analysis and improvement.

[0042] Equipment maintenance and upkeep: After completing a series of testing tasks, operators need to perform necessary maintenance and upkeep on the testing equipment, such as cleaning dust, checking sensor status, and adjusting drive mechanisms, to ensure that the equipment can operate continuously and stably.

[0043] As can be seen from the above description of the workflow, the automotive air conditioning performance testing device has the advantages of high automation, high testing efficiency, and accurate and reliable testing results, which can greatly improve the production quality and market competitiveness of automotive air conditioning boxes 9.

[0044] Please refer to the following: Figures 3 to 5 As an embodiment of the present invention, the defrosting foot blowing detection component 10 includes a fixed plate 101, wherein the fixed plate 101 is fixedly connected to the upper end of the frame 2; a telescopic cylinder 102 is provided in the middle of the fixed plate 101, wherein a movable plate 103 is provided below the fixed plate 101; the top end of the piston rod of the telescopic cylinder 102 passes through the fixed plate 101 downward and is fixedly connected to a floating joint 104, wherein the end of the floating joint 104 away from the piston rod is fixedly connected to the movable plate 103 through a connecting seat 105.

[0045] In the above-described scheme, the fixed plate 101 of the defrost foot blowing detection assembly 10 is firmly installed on the upper end of the frame 2 to ensure that the entire defrost foot blowing detection assembly 10 remains stable during the detection process; the telescopic cylinder 102 serves as the driving mechanism, with its piston rod in the initial position (usually in the retracted state), ready to perform subsequent telescopic actions; the movable plate 103 is connected to the floating joint 104 of the telescopic cylinder 102 via the connecting seat 105, so when the telescopic cylinder 102 is not in motion, the movable plate 103 is also in the initial position, usually located directly below the fixed plate 101; when the automotive air conditioning unit 9 is transported to the detection position and ready for detection, the industrial control integrated computer 13 sends a start command to the defrost foot blowing detection assembly 10; after receiving the command, the telescopic cylinder 102 begins to perform the telescopic action, thereby controlling the piston rod to extend downwards, driving the movable plate 103 to move downwards together through the floating joint 104; as the telescopic cylinder 102 telescopics, the movable plate 103 gradually approaches the automotive air conditioning unit 9. The defrost vent and foot blower vent are connected. During this process, the floating joint 104 and the connecting seat 105 play a role in buffering and stabilizing the connection, ensuring that the movable plate 103 can move smoothly and accurately to the predetermined position. When the movable plate 103 reaches the predetermined position, the air guide shroud 106 below it will guide the airflow blown out of the air conditioning unit 9 into the detection area. At this time, the first wind speed sensor 17 installed above the air guide shroud 106 begins to measure the wind speed of the defrost vent and foot blower vent. The first wind speed sensor 17 transmits the measured wind speed data to the industrial control all-in-one computer 13 in real time. After receiving the data, the industrial control all-in-one computer 13 performs necessary processing and analysis, and records the results in the storage device. After completing the airflow detection, the industrial control all-in-one computer 13 will send a reset command to the telescopic cylinder 102. The piston rod of the telescopic cylinder 102 begins to retract, driving the movable plate 103 to move upward and return to the initial position. With the reset of the movable plate 103, the defrost and foot blower detection component 10 returns to the initial state and is ready to carry out the next detection task.

[0046] Please refer to the following: Figure 4 , Figure 5 As an embodiment of this utility model, two air guide covers 106 are symmetrically arranged below the movable plate 103, and a slide plate 107 is provided at the upper end of the air guide cover 106; limit blocks 108 are symmetrically installed on both sides of the slide plate 107, and the limit blocks 108 are fixedly connected to the movable plate 103; a sliding groove 109 is opened on the side of the limit block 108 near the slide plate 107, and the slide plate 107 is set in the sliding groove 109 and slides along its groove direction; a waist hole 14 is opened on the movable plate 103 at the position corresponding to the air guide cover 106, and a mounting seat 15 is provided above the waist hole 14; an air guide pipe 16 is provided on the mounting seat 15, and the air inlet end of the air guide pipe 16 passes through the waist hole 14 and communicates with the top of the air guide cover 106, and a first wind speed sensor 17 is provided at the air outlet end of the air guide pipe 16.

[0047] In the above-described scheme, two air guide hoods 106 are symmetrically installed below the movable plate 103 to guide the airflow blown out by the air conditioning unit 9 into the detection area. Each air guide hood 106 has a slide plate 107 at its upper end. The limiting block 108 is fixedly connected to the movable plate 103, and the slide groove 109 opened on the side of the limiting block 108 near the slide plate 107 provides a precise sliding track for the slide plate 107. This design not only ensures the stability of the slide plate 107 and ensures that the slide plate 107 can slide smoothly in the slide groove 109, but also allows it to be finely adjusted within a certain range. A waist hole 14 is opened on the movable plate 103 at the position corresponding to the air guide hood 106. A mounting seat 15 is provided above the waist hole 14, and an air guide pipe 16 is fixed on the mounting seat 15. The air inlet end of the air guide pipe 16 passes through the waist hole 14 and communicates with the top of the air guide hood 106 to form a complete airflow channel.

[0048] Before the test begins, the operator can adjust the position of the air guide shroud 106 by sliding the slide plate 107 as needed. This adjustment ensures that the air guide shroud 106 is accurately aligned with the air outlet of the air conditioning unit 9, thereby capturing the most accurate wind speed data. A first wind speed sensor 17 is installed at the air outlet of the air duct 16. The first wind speed sensor 17 is used to measure the airflow speed through the air duct 16 in real time. Before the test begins, the operator needs to ensure that the first wind speed sensor 17 is in normal working condition and calibrate its measurement accuracy. When the air conditioning unit 9 starts working, it blows out… The airflow is guided into the air duct 16 by the air guide shroud 106. When the airflow flows in the air duct 16, it will pass through the first wind speed sensor 17, which will measure and record the airflow speed in real time. The first wind speed sensor 17 will transmit the measured wind speed data to the industrial control computer 13 in real time. After receiving the data, the industrial control computer 13 will perform necessary processing and analysis to evaluate whether the wind speed performance of the air outlet of the air conditioning unit 9 meets the standard. After completing one test, the defrost foot detection component 10 is controlled to return to the initial state to prepare for the next test task.

[0049] Please see Figure 4 As one embodiment of this utility model, elongated holes 18 are symmetrically provided on both sides of the waist hole 14, wherein a triangular bolt 19 is provided in the elongated hole 18, and the triangular bolt 19 passes through the elongated hole 18 and is threadedly connected to the slide plate 107.

[0050] In the above-described scheme, before the slide plate 107 is connected to the movable plate 103, the triangular bolt 19 needs to be passed through the elongated hole 18 and left on one side of the slide plate 107. The design of the elongated hole 18 allows the triangular bolt 19 to move within a certain range, providing a range of motion for subsequent adjustment of the slide plate 107. After the slide plate 107 is connected to the limiting block 108 through the slide groove 109, it is initially placed in the predetermined position below the movable plate 103. At this time, the triangular bolt 19 is not fully tightened, so that precise adjustment can be made later. The operator can make fine adjustments to the slide plate 107 by moving the position of the triangular bolt 19 in the elongated hole 18. This adjustment method is both precise and flexible, ensuring that the slide plate 107 can be accurately aligned with the air outlet of the air conditioning unit 9. After the position of the slide plate 107 is adjusted, the operator needs to tighten the triangular bolt 19 to make it tightly connected to the threaded connection of the slide plate 107. This not only fixes the position of the slide plate 107, but also prevents it from moving or shaking during the testing process. The tightening effect of the triangular bolt 19 is crucial during the testing process. It not only ensures a stable connection between the slide plate 107 and the movable plate 103, but also prevents the slide plate 107 from shifting due to airflow impact or vibration. The design of the elongated hole 18 not only provides adjustment space for the slide plate 107, but also increases the redundancy of the system to a certain extent. Even if the slide plate 107 undergoes minor deformation or wear after long-term use, the operator can still restore its original positioning accuracy by adjusting the position of the triangular bolt 19 in the elongated hole 18.

[0051] Please see Figure 3 As an embodiment of the present utility model, the four corners of the fixed plate 101 are respectively provided with first elliptical flange linear bearings 20, wherein each of the first elliptical flange linear bearings 20 is provided with a first guide shaft 21, and the lower end of the first guide shaft 21 is fixedly connected to the movable plate 103.

[0052] In the above-described scheme, a first elliptical flange linear bearing 20 is installed at each of the four corners of the fixed plate 101. The design of this first elliptical flange linear bearing 20 not only increases the strength and stability of the bearing but also facilitates its fixed connection with the fixed plate 101. Each first elliptical flange linear bearing 20 has a first guide shaft 21 inside, the lower end of which is fixedly connected to the movable plate 103, forming a stable guiding system. When the movable plate 103 moves vertically, the first guide shaft 21 slides inside the first elliptical flange linear bearing 20, providing precise guidance and stable support for the movable plate 103. The point contact design between the balls of the linear bearing 20 and the first guide shaft 21 reduces frictional resistance, making the movement of the movable plate 103 smoother and more sensitive. The first elliptical flange linear bearing 20 can withstand a certain load and plays a buffering role during the movement of the movable plate 103. When the movable plate 103 is subjected to external impact or vibration, the first elliptical flange linear bearing 20 can absorb some energy, protecting the movable plate 103 and the first guide shaft 21 from damage. Due to the low rolling friction resistance of the first elliptical flange linear bearing 20, the movable plate 103 can maintain stable operation during movement, which helps to reduce vibration and noise and improve the stability and reliability of the entire system.

[0053] Please see Figure 6 As one embodiment of this utility model, the left foot blowing detection component 11 includes a right-angle mounting plate 1101, wherein the horizontal top edge of the right-angle mounting plate 1101 is fixedly connected to the upper end of the frame 2; a dual-axis cylinder 1102 is fixedly mounted on the vertical side of the right-angle mounting plate 1101, wherein a second wind speed sensor 1103 is provided at the top of the piston rod of the dual-axis cylinder 1102. (Since the left foot blowing detection component and the right foot blowing detection component have the same structure, this embodiment provides a detailed overview of the structure of the left foot blowing detection component, and therefore the structure of the right foot blowing detection component will not be repeated.)

[0054] In the above-described scheme, the right-angle mounting plate 1101 is the basic support structure of the left foot blowing detection component 11. The horizontal top edge of the right-angle mounting plate 1101 is tightly connected to the upper end of the frame 2 via bolts or other fixing methods, ensuring that the entire component is stably installed on the frame 2. The design of the right-angle mounting plate 1101 allows its vertical side to point perpendicularly to the left foot blowing air outlet of the air conditioning unit 9, providing precise positioning for subsequent sensor installation and detection. A dual-axis cylinder 1102 is fixedly installed on the vertical side of the right-angle mounting plate 1101. The dual-axis cylinder 1102 is... A pneumatic actuator has a piston rod that can extend and retract in two axes. This design allows the sensor to flexibly adjust its position to adapt to the detection requirements of different air outlet positions and sizes. A second wind speed sensor 1103 is provided at the top of the piston rod of the dual-axis cylinder 1102. The second wind speed sensor 1103 is used to capture and record the wind speed data of the left foot air outlet of the air conditioning unit 9 in real time. The installation position of the second wind speed sensor 1103 can be adjusted with the extension and retraction of the piston rod of the dual-axis cylinder 1102 to ensure that it can accurately measure the wind speed of the air outlet.

[0055] Based on the specific location and size of the left foot vent of the air conditioning unit 9, the operator can adjust the position of the second wind speed sensor 1103 by controlling the extension and retraction of the piston rod of the dual-axis cylinder 1102. After adjustment, ensure that the second wind speed sensor 1103 maintains an appropriate distance from the vent to accurately measure the wind speed. When the air conditioning unit 9 starts working, air will blow out from its left foot vent. At this time, the second wind speed sensor 1103 will capture and measure the airflow speed in real time and transmit the measurement data to the industrial control all-in-one computer 13 or other data processing equipment via data cable or other communication methods. The operator can view and analyze the measurement data in real time on the industrial control all-in-one computer 13 to evaluate whether the wind speed performance of the left foot vent of the air conditioning unit 9 meets the standard. After completing one test, the operator needs to control the piston rod of the dual-axis cylinder 1102 to retract and reset the second wind speed sensor 1103 to the initial position. This not only prepares for the next test but also prevents the second wind speed sensor 1103 from being damaged or deformed after long-term operation.

[0056] Please refer to the following: Figures 7 to 9 As one embodiment of the present invention, the lifting assembly 7 includes a cylinder support plate 701, wherein the two sides of the cylinder support plate 701 are fixedly connected to the upper end of the support frame 4 respectively; a lifting cylinder 702 is provided below the cylinder support plate 701, wherein a lifting plate 703 is provided above the cylinder support plate 701, and the top end of the piston rod of the lifting cylinder 702 passes through the cylinder support plate 701 upward and is fixedly connected to the lifting plate 703.

[0057] In the above-described scheme, the cylinder support plate 701 serves as the core support structure of the lifting assembly 7. The cylinder support plate 701 is securely mounted on the upper end of the support frame 4. The support frame 4 is a stable frame structure that provides necessary support and stability. The cylinder support plate 701 is tightly connected to the upper end of the support frame 4 on both sides via bolts, welding, or other fixing methods to ensure the stability of the entire assembly. A lifting cylinder 702 is located below the cylinder support plate 701. The lifting cylinder 702 is a pneumatic actuator that achieves lifting through the input and output of compressed air. The selection of the lifting cylinder 702 for the extension and retraction of the piston rod is usually determined based on parameters such as the required lifting force, stroke, and speed. A lifting plate 703 is provided above the cylinder support plate 701. The lifting plate 703 is usually a planar structure used to bear the load that needs to be lifted. The size and shape of the lifting plate 703 are designed according to the actual application requirements. The top of the piston rod of the lifting cylinder 702 passes through the cylinder support plate 701 and is fixedly connected to the lifting plate 703. In this way, when the piston rod of the lifting cylinder 702 extends or retracts, the lifting plate 703 will rise or fall accordingly.

[0058] Before the lifting assembly 7 is activated, the lifting cylinder 702 is in its initial state, the piston rod is in the retracted position, and the lifting plate 703 is in its lowest position. When it is necessary to raise or lower the lifting plate 703, the lifting cylinder 702 is controlled to drive the piston rod to extend. As the piston rod extends, the lifting plate 703 gradually rises until it reaches the required lifting height. Once the lifting plate 703 reaches the required height, the piston rod of the lifting cylinder 702 remains extended, ensuring that the lifting plate 703 remains stable for a period of time. At this time, the lifting plate 703 can bear the required load and perform corresponding operations. When it is necessary to lower the lifting plate 703, the lifting cylinder 702 drives the piston rod to retract. As the piston rod retracts, the lifting plate 703 gradually descends until it returns to its initial position. In this way, the lifting assembly 7 completes one complete lifting cycle.

[0059] Please refer to the following: Figure 8 , Figure 9 As an embodiment of the present utility model, the cylinder support plate 701 is provided with a second elliptical flange linear bearing 22 at each of the four corners, wherein each of the second elliptical flange linear bearings 22 is provided with a second guide shaft 23, and the top end of the second guide shaft 23 is fixedly connected to the lifting plate 703.

[0060] In the above-described scheme, the cylinder support plate 701 serves as the basic support structure of the lifting assembly 7. The cylinder support plate 701 is stably mounted on the support frame 4 and connected to the lifting plate 703 via the second elliptical flange linear bearings 22 at its four corners. The design of the second elliptical flange linear bearings 22 not only enhances the strength and stability of the bearings but also facilitates precise connection with the cylinder support plate 701 and the lifting plate 703. Each second elliptical flange linear bearing 22 has a second guide shaft 23 inside, which is a precision-manufactured cylindrical part, and its top end is fixedly connected to the lifting plate 703 by bolts.

[0061] Before the lifting assembly 7 is activated, the second guide shaft 23 is fully inserted into the second elliptical flange linear bearing 22, and the lifting plate 703 is in its lowest position, maintaining a certain distance from the cylinder support plate 701. When the lifting cylinder 702 starts working, its piston rod extends, pushing the lifting plate 703 upward. Because the second guide shaft 23 is fixedly connected to the lifting plate 703 and fully inserted into the second elliptical flange linear bearing 22, the lifting plate 703 will perform precise linear motion along the second guide shaft 23 during the lifting process. During the lifting process, the second elliptical flange linear bearing 22 and the second guide shaft 23 work together... A stable and precise guiding system is provided; the point contact design between the balls of the second elliptical flange linear bearing 22 and the second guide shaft 23 reduces frictional resistance, making the movement of the lifting plate 703 smoother and more sensitive; at the same time, the second guide shaft 23 also plays a role in supporting and stabilizing the lifting plate 703, preventing it from shaking or tilting during the lifting process; when the piston rod of the lifting cylinder 702 retracts, the lifting plate 703 will descend smoothly along the second guide shaft 23 until it returns to the initial position. During this process, the second elliptical flange linear bearing 22 and the second guide shaft 23 continue to play a stabilizing and guiding role.

[0062] Please refer to the following: Figure 8 , Figure 10 As an embodiment of the present utility model, the upper end of the lifting plate 703 is provided with two positioning pins 24, which are arranged diagonally; the lower end of the tooling base plate 8 is provided with two positioning sleeves 25, which correspond one-to-one with the positioning pins 24; the upper periphery of the lifting plate 703 is provided with lifting pads 26, which abut against the lower end of the tooling base plate 8.

[0063] In the above-described scheme, the lifting plate 703 serves as the main load-bearing component of the lifting assembly 7. The lifting plate 703 moves up and down via the drive of the cylinder support plate 701 and the lifting cylinder 702. Its upper end is equipped with two diagonally arranged positioning pins 24, which are used for precise docking with the positioning sleeves 25 of the tooling base plate 8. The positioning pins 24 are precision-manufactured cylindrical parts, typically installed at predetermined positions on the lifting plate 703, arranged diagonally to ensure the stability and accuracy of the tooling base plate 8 during lifting. The surfaces of the positioning pins 24 are treated to reduce friction and wear, and improve service life. The tooling base plate 8 is a component used to support the air conditioning unit 9, and its lower end is equipped with… There are two positioning sleeves 25 that correspond one-to-one with the positioning pins 24. The positioning sleeves 25 are cylindrical parts with an inner diameter that matches the positioning pins 24. They are used to precisely mate with the positioning pins 24 to achieve precise positioning of the tooling base plate 8. The positioning sleeves 25 are usually made of wear-resistant and corrosion-resistant materials to ensure long-term stability and reliability. The lifting pads 26 are parts installed around the upper periphery of the lifting plate 703. They are used to abut against the lower end of the tooling base plate 8 during the lifting process. The design of the lifting pads 26 can ensure the smoothness and stability of the tooling base plate 8 during the lifting process, while preventing direct contact between the tooling base plate 8 and the lifting plate 703, reducing wear and noise.

[0064] Please refer to the following: Figure 7 , Figure 10 and Figure 11 As one embodiment of this utility model, the double-speed chain conveyor 3 is provided with two blocking cylinders 27 at intervals along its conveying direction. The blocking cylinders 27 are fixedly connected to the double-speed chain conveyor 3 through support blocks 28. The blocking cylinders 27 are respectively provided at both ends of the lifting assembly 7. The distance between the two blocking cylinders 27 is equivalent to the length of the tooling base plate 8 provided above the lifting assembly 7. The tooling base plate 8 is provided with a limit groove 29 on the side near the blocking cylinders 27. The limit groove 29 is provided with a shock-absorbing block 30.

[0065] In the above-described scheme, two blocking cylinders 27 are spaced apart along the conveying direction on the double-speed chain conveyor line 3. The blocking cylinders 27 are fixedly connected to the double-speed chain conveyor line 3 via support blocks 28. The function of the blocking cylinders 27 is to block or stop the movement of the tooling base plate 8 when needed, so as to achieve precise positioning of the tooling base plate 8. The lifting assembly 7 is arranged between the blocking cylinders 27, with its two ends facing the two blocking cylinders 27 respectively. The function of the lifting assembly 7 is to lift the tooling base plate 8 and the workpiece on it to a predetermined height through lifting and lowering motion, so as to carry out subsequent operations. The distance between the two blocking cylinders 27 is approximately equal to the length of the tooling base plate 8 set above the lifting assembly 7, ensuring that the tooling base plate 8 can stably stay at the two blocking cylinders during the lifting and lowering process. Between the cylinders 27; the tooling base plate 8 is a component used to support the air conditioning unit 9; its length matches the distance between the two blocking cylinders 27 to ensure stable support by the blocking cylinders 27 during lifting; a limiting groove 29 is provided on the side of the tooling base plate 8 near the blocking cylinders 27, which is used to cooperate with the piston rod or other limiting device of the blocking cylinders 27 to achieve precise positioning of the workpiece; the limiting groove 29 is provided on the side of the tooling base plate 8 near the blocking cylinders 27, and its shape and size match the piston rod or other limiting device of the blocking cylinders 27; the shock absorber 30 is set in the limiting groove 29 to reduce impact and noise when the tooling base plate 8 contacts the blocking cylinders 27, while protecting the tooling base plate 8 and the blocking cylinders 27 from damage.

[0066] Please see Figure 1 As one embodiment of this utility model, a safety door 31 is provided at the front end of the soundproof room 1, wherein a transparent observation window 32 is opened on the safety door 31.

[0067] In the above-described scheme, the safety door 31 is designed with sound insulation materials and technology, which can effectively isolate external noise when the door is closed, maintaining a low-noise environment inside the soundproof room 1; the safety door 31 has high strength and stability, which can prevent personnel from accidentally entering the soundproof room 1 and ensure the safety of personnel and equipment; the transparent observation window 32 is usually installed on the door of the safety door 31. The transparent observation window 32 allows personnel to observe the situation inside the soundproof room 1 through the transparent observation window 32 without opening the safety door 31, which is convenient for monitoring and recording the experimental or production process.

[0068] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A vehicle air conditioning performance testing device, installed in a soundproof room (1), wherein a frame (2) is installed in the soundproof room (1), and a double-speed chain conveyor line (3) is provided below the frame (2); characterized in that, Two sets of support frames (4) are symmetrically arranged on the inner side of the lower part of the frame (2), wherein the support frame (4) is located below the double-speed chain conveyor line (3), and the upper end of the support frame (4) is fixedly connected to the double-speed chain conveyor line (3) through a connecting plate (5); windows (6) are symmetrically opened on both sides of the soundproof room (1), wherein the windows (6) are adapted to the double-speed chain conveyor line (3); a lifting assembly (7) is provided between the two sets of support frames (4), wherein the lifting assembly (7) is fixedly connected to the support frame (4); a tooling base plate (8) is provided on the double-speed chain conveyor line (3), wherein an air conditioning unit (9) is placed on the tooling base plate (8); the tooling base plate (8) and the double-speed chain conveyor line (3) are fixedly connected to the double-speed chain conveyor line (3). The conveyor line (3) is movably connected, wherein the lifting component (7) is set below the tooling base plate (8); the frame (2) is provided with a defrost foot blowing detection component (10), wherein the defrost foot blowing detection component (10) is provided with a left foot blowing detection component (11) and a right foot blowing detection component (12) on both sides, and the left foot blowing detection component (11) and the right foot blowing detection component (12) have the same structure; the front end of the frame (2) is provided with an industrial control all-in-one machine (13), wherein the industrial control all-in-one machine (13) is electrically connected to the double speed conveyor line, the lifting component (7), the defrost foot blowing detection component (10), the left foot blowing detection component (11) and the right foot blowing detection component (12).

2. The automotive air conditioning performance testing device according to claim 1, characterized in that, The defrosting foot blowing detection component (10) includes a fixed plate (101), wherein the fixed plate (101) is fixedly connected to the upper end of the frame (2); a telescopic cylinder (102) is provided in the middle of the fixed plate (101), wherein a movable plate (103) is provided below the fixed plate (101); the top end of the piston rod of the telescopic cylinder (102) passes through the fixed plate (101) downward and is fixedly connected to a floating joint (104), wherein the end of the floating joint (104) away from the piston rod is fixedly connected to the movable plate (103) through a connecting seat (105).

3. The automotive air conditioning performance testing device according to claim 2, characterized in that, Two air guides (106) are symmetrically arranged below the movable plate (103), and a slide plate (107) is provided at the upper end of the air guide (106); limit blocks (108) are symmetrically installed on both sides of the slide plate (107), and the limit blocks (108) are fixedly connected to the movable plate (103); a sliding groove (109) is opened on the side of the limit block (108) near the slide plate (107), and the slide plate (107) is set in the sliding groove (109) and slides along the groove opening direction.

4. The automotive air conditioning performance testing device according to claim 3, characterized in that, The movable plate (103) has a waist hole (14) at a position corresponding to the air guide cover (106), and a mounting base (15) is provided above the waist hole (14); the mounting base (15) is provided with an air guide pipe (16), wherein the air inlet end of the air guide pipe (16) passes through the waist hole (14) and communicates with the top of the air guide cover (106), and the air outlet end of the air guide pipe (16) is provided with a first wind speed sensor (17).

5. The automotive air conditioning performance testing device according to claim 4, characterized in that, The waist hole (14) has elongated holes (18) symmetrically opened on both sides. A triangular bolt (19) is provided in the elongated hole (18), and the triangular bolt (19) passes through the elongated hole (18) and is threadedly connected to the slide plate (107).

6. The automotive air conditioning performance testing device according to claim 2, characterized in that, The fixed plate (101) is provided with first elliptical flange linear bearings (20) at the four corners, and each of the first elliptical flange linear bearings (20) is provided with a first guide shaft (21), and the lower end of the first guide shaft (21) is fixedly connected to the movable plate (103).

7. The automotive air conditioning performance testing device according to claim 1, characterized in that, The left foot blowing detection component (11) includes a right-angle mounting plate (1101), wherein the horizontal top edge of the right-angle mounting plate (1101) is fixedly connected to the upper end of the frame (2); a dual-axis cylinder (1102) is fixedly mounted on the vertical side of the right-angle mounting plate (1101), wherein a second wind speed sensor (1103) is provided at the top of the piston rod of the dual-axis cylinder (1102).

8. The automotive air conditioning performance testing device according to claim 1, characterized in that, The lifting assembly (7) includes a cylinder support plate (701), wherein the cylinder support plate (701) is fixedly connected to the upper end of the support frame (4) on both sides; a lifting cylinder (702) is provided below the cylinder support plate (701), wherein a lifting plate (703) is provided above the cylinder support plate (701), and the top end of the piston rod of the lifting cylinder (702) passes through the cylinder support plate (701) upward and is fixedly connected to the lifting plate (703); a second elliptical flange linear bearing (22) is provided at each of the four corners of the cylinder support plate (701), wherein a second guide shaft (23) is provided inside each of the second elliptical flange linear bearings (22), and the top end of the second guide shaft (23) is fixedly connected to the lifting plate (703).

9. The automotive air conditioning performance testing device according to claim 8, characterized in that, The upper end of the lifting plate (703) is provided with two positioning pins (24), which are arranged diagonally; the lower end of the tooling base plate (8) is provided with two positioning sleeves (25), which correspond one-to-one with the positioning pins (24); the upper periphery of the lifting plate (703) is provided with lifting pads (26), which abut against the lower end of the tooling base plate (8).

10. The automotive air conditioning performance testing device according to claim 1, characterized in that, The double-speed chain conveyor (3) is provided with two blocking cylinders (27) at intervals along its conveying direction. The blocking cylinders (27) are fixedly connected to the double-speed chain conveyor (3) through support blocks (28). The blocking cylinders (27) are respectively set at both ends of the lifting assembly (7). The distance between the two blocking cylinders (27) is equivalent to the length of the tooling base plate (8) set above the lifting assembly (7). The tooling base plate (8) has a limit groove (29) on the side near the blocking cylinder (27). The limit groove (29) is provided with a shock-absorbing block (30).

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