A passenger car sunroof wind tunnel test bench

Abstract

The utility model discloses a kind of passenger car sunroof wind tunnel test benches, comprising: support frame, sunroof assembly fixing frame and air guide structure, support frame is used to be fixed on wind tunnel test platform;Sunroof assembly fixing frame is installed on support frame, for installing sunroof assembly;Air guide structure is installed on support frame, and it is connected with sunroof assembly fixing frame;Sunroof assembly fixing frame includes first side plate, second side plate and two oppositely arranged profiled side plates, first side plate and second side plate are arranged in parallel, and are installed on support frame;The opposite two sides of each profiled side plate are connected with first side plate and second side plate respectively.Support frame and sunroof assembly fixing frame support sunroof assembly, installation is convenient;First side plate, second side plate and profiled side plate form fixing frame structure, simulate the real car installation state of sunroof assembly;Air guide structure is used to simulate the airflow guiding of vehicle front windshield, improve the accuracy and reliability of force test;Simple structure, convenient operation, it is favorable to improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of vehicle sunroof glass assembly testing technology, specifically to a wind tunnel test bench for passenger car sunroofs. Background Technology

[0002] With the continuous development of automobiles, sunroofs are typically installed in the roof of vehicles to quickly exchange air inside the cabin. A glass assembly is then installed on the sunroof to open or close it. The advantages of sunroofs include rapid air exchange, rapid cooling, and elimination of fogging on the windshield. As demands for driving comfort and visibility increase, the most direct and effective method is to increase the area of ​​the sunroof, which places higher demands on the structural strength of the sunroof assembly. Wind tunnel testing to analyze the stress on the sunroof assembly is an effective way to quickly verify its structural strength. However, directly mounting the sunroof assembly on the vehicle for stress analysis is inconvenient and prone to introducing significant errors. Therefore, it is necessary to conduct independent wind tunnel tests on the sunroof assembly. This requires a simple and easy-to-operate test bench to support the sunroof assembly and simulate its mounted state on the vehicle for independent wind tunnel testing. Utility Model Content

[0003] One of the objectives of this utility model is to provide a wind tunnel test bench for sunroofs of passenger vehicles, so as to solve the problem in the prior art that it is inconvenient to conduct wind tunnel tests on sunroof assemblies using the whole vehicle.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A wind tunnel test rig for a passenger vehicle sunroof, used to support a sunroof assembly, includes: a support frame, a sunroof assembly mounting frame, and an air guide structure. The support frame is used to fix the sunroof assembly on a wind tunnel test platform. The sunroof assembly mounting frame is installed on the support frame and used to install the sunroof assembly. The air guide structure is installed on the support frame and connected to the sunroof assembly mounting frame. The sunroof assembly mounting frame includes a first side plate, a second side plate, and two oppositely arranged contoured side plates. The first side plate and the second side plate are arranged parallel to each other and are installed on the support frame. The opposite sides of each contoured side plate are respectively connected to the first side plate and the second side plate.

[0005] Based on the aforementioned technical means, the cooperation between the support frame and the sunroof assembly fixing frame enables the independent and stable installation of the sunroof assembly in the wind tunnel, effectively solving the problems of inconvenient installation and large errors of the force measuring device in vehicle testing. The first side plate, the second side plate, and two oppositely arranged contoured side plates form the fixing frame structure, which can simulate the actual vehicle installation state of the sunroof assembly, ensuring the accuracy of the sunroof assembly's test posture. The air guiding structure is used to simulate the airflow guidance of the windshield on a vehicle, effectively simulating the airflow state of the sunroof assembly installed on the vehicle, improving the accuracy and reliability of the sunroof assembly force measurement test. The test bench structure of this utility model is simple, and the operation is convenient when installing the sunroof assembly on the test bench, which is conducive to improving test efficiency.

[0006] Furthermore, a plurality of first contoured support blocks are formed on the top of the first side panel, and a plurality of second contoured support blocks are formed on the top of the second side panel. The tops of each first contoured support block and each second contoured support block can fit against the sunroof assembly so that the sunroof assembly can be tightly installed on each first contoured support block and each second contoured support block.

[0007] Based on the aforementioned technical means, the first and second contour support blocks provide multi-point contour support and positioning for the sunroof assembly, which not only improves the tightness and stability of the sunroof assembly installation, but also ensures that the sunroof assembly's posture during the test is close to the actual vehicle installation posture, thereby improving the accuracy of the test results.

[0008] Furthermore, a first mounting hole is formed on the first contoured support block, and a second mounting hole is formed on the second contoured support block; it also includes a plurality of first bolts, one end of each first bolt passing through the sunroof assembly and locked in the first mounting hole / second mounting hole.

[0009] According to the above-mentioned technical means, the first mounting hole and the second mounting hole provide installation positioning for each first bolt to lock the sunroof assembly on the first contour support block and the second contour support block, ensuring the accuracy and reliability of the connection between the sunroof assembly and the first contour support block and the second contour support block.

[0010] Furthermore, threaded sleeves are provided in the first mounting hole and the second mounting hole.

[0011] Based on the above technical means, the threaded insert has the characteristics of high strength and wear resistance, which enhances the reliability of the first bolt being locked in the first mounting hole / second mounting hole.

[0012] Furthermore, each of the contoured side panels has a plurality of third mounting holes formed on its top; it also includes a plurality of second bolts, one end of each second bolt passing through the sunroof assembly and then locked in the third mounting hole.

[0013] Based on the aforementioned technical means, the third mounting hole provides installation positioning for each second bolt to lock the sunroof assembly onto the contoured side plate, ensuring the reliability of the connection between the sunroof assembly and the contoured side plate.

[0014] Furthermore, the support frame includes a frame body and a support plate, the frame body being used to fix it on the wind tunnel test platform; the support plate being installed on the frame body; and the sunroof assembly fixing frame being installed on the support plate.

[0015] Based on the aforementioned technical means, the frame is the load-bearing foundation supporting the sunroof assembly mounting bracket, while the support plate provides a load-bearing surface for the sunroof assembly mounting bracket, ensuring that the sunroof assembly mounting bracket is installed stably.

[0016] Furthermore, the frame includes support legs and a frame, the support legs are installed at the bottom of the frame for fixing to the wind tunnel test platform; the support plate is installed on the frame.

[0017] Based on the aforementioned technical means, the frame serves as the main supporting structure for the support plate, and the support legs can fix the frame on the wind tunnel test platform, providing stable support for the frame.

[0018] Furthermore, the support leg includes a horizontal bar and a vertical bar, and the two ends of the horizontal bar are respectively connected to the frame through a vertical bar.

[0019] Based on the above technical means, the horizontal and vertical bars together form a supporting foundation to support the frame; the way the horizontal and vertical bars are connected is simple in structure and easy to produce.

[0020] Furthermore, the frame is provided with reinforcing bars.

[0021] Based on the aforementioned technical means, the reinforcing rod can enhance the structural strength of the frame and ensure the stability of the frame supporting the support plate.

[0022] Furthermore, the air guiding structure is an air guiding plate, and the two opposite sides of the air guiding plate are respectively connected to the support frame and the sunroof assembly fixing frame, forming an inclined air guiding surface.

[0023] Based on the above-mentioned technical means, the inclined air guiding surface formed by the air guide plate can simply and directly simulate the airflow guidance of the windshield, with a simple structure and convenient installation.

[0024] The beneficial effects of this utility model are as follows: The cooperation between the support frame and the sunroof assembly mounting frame enables the independent and stable installation of the sunroof assembly in the wind tunnel, effectively solving the problems of inconvenient installation and large errors of the force measuring device in vehicle testing. The first side plate, the second side plate, and the two oppositely arranged contoured side plates form the mounting frame structure, which can simulate the actual vehicle installation state of the sunroof assembly and ensure the accuracy of the sunroof assembly's test posture. The air guiding structure is used to simulate the airflow guidance of the windshield on the vehicle, which can effectively simulate the airflow state of the sunroof assembly installed on the vehicle, improving the accuracy and reliability of the sunroof assembly force measurement test. The test bench structure of this utility model is simple, and the operation is convenient when installing the sunroof assembly on the test bench, which is conducive to improving the test efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B; Figure 4 The second schematic diagram shows the overall structure of this utility model.

[0027] in, 100. Support frame; 110. Frame body; 111. Support leg; 1111. Horizontal bar; 1112. Vertical bar; 112. Frame; 113. Reinforcing bar; 120. Support plate; 200. Sunroof assembly fixing frame; 210. First side plate; 211. First contoured support block; 2111. First mounting hole; 220. Second side plate; 221. Second contoured support block; 2211. Second mounting hole; 230. Contoured side plate; 231. Third mounting hole; 300. Air guide structure; 310. Air guide surface. Detailed Implementation

[0028] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. The drawings are for illustrative purposes only and should not be construed as limiting the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0029] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] This embodiment provides, as follows: Figures 1 to 4 The illustrated wind tunnel test rig for a passenger vehicle sunroof, used to support a sunroof assembly, includes: a support frame 100, a sunroof assembly mounting frame 200, and an air guide structure 300. The support frame 100 is fixed to a wind tunnel test platform; the sunroof assembly mounting frame 200 is mounted on the support frame 100 for mounting the sunroof assembly; the air guide structure 300 is mounted on the support frame 100 and connected to the sunroof assembly mounting frame 200; the sunroof assembly mounting frame 200 includes a first side plate 210, a second side plate 220, and two oppositely arranged contoured side plates 230. The first side plate 210 and the second side plate 220 are arranged in parallel and mounted on the support frame 100; the opposite sides of each contoured side plate 230 are respectively connected to the first side plate 210 and the second side plate 220.

[0031] When conducting wind tunnel tests on the sunroof assembly, first fix the sunroof assembly mounting bracket 200 onto the support bracket 100, and then fix the assembled support bracket 100 and sunroof assembly mounting bracket 200 onto the test platform in the wind tunnel laboratory using a special fixing chain for wind tunnel testing (during fixing, the orientation of the support bracket 100 and the sunroof assembly mounting bracket 200 must meet the test requirements, and the fixing must be firm); then install the sunroof assembly to be tested onto the sunroof assembly mounting bracket 200 (before installing the sunroof assembly, the force measuring device has been arranged on the sunroof assembly in advance), and seal all the gaps between the sunroof assembly and the sunroof assembly mounting bracket 200 with special tape to prevent air leakage to the force measuring device during the test; finally, install the air guide structure 300 to simulate the attitude of the windshield.

[0032] The cooperation between the support frame 100 and the sunroof assembly fixing frame 200 enables the independent and stable installation of the sunroof assembly in the wind tunnel, effectively solving the problems of inconvenient installation and large errors of the force measuring device in vehicle testing. The first side plate 210, the second side plate 220, and the two oppositely arranged contoured side plates 230 form a fixing frame structure, which can simulate the actual vehicle installation state of the sunroof assembly and ensure the accuracy of the sunroof assembly's test posture. The air guiding structure 300 is used to simulate the airflow guidance of the windshield on the vehicle, which can effectively simulate the airflow state of the sunroof assembly installed on the vehicle, improving the accuracy and reliability of the force measurement test of the sunroof assembly. The test bench structure of this embodiment is simple, and the operation is convenient when installing the sunroof assembly on the test bench, which is conducive to improving the test efficiency.

[0033] The upper surface of each contoured side panel 230 is generally arc-shaped to match the arc-shaped surface of the sunroof assembly.

[0034] The first side panel 210, the second side panel 220, and each contoured side panel 230 are all made of high-density wood substitute material and formed by five-axis processing; the first side panel 210, the second side panel 220, and each contoured side panel 230 are connected to the support frame 100 by bolts.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the top of the first side panel 210 has multiple first contoured support blocks 211, and the top of the second side panel 220 has multiple second contoured support blocks 221. The tops of each first contoured support block 211 and each second contoured support block 221 can fit against the sunroof assembly, so that the sunroof assembly can be tightly installed on each first contoured support block 211 and each second contoured support block 221. The first contoured support blocks 211 and the second contoured support blocks 221 provide multi-point contoured support and positioning for the sunroof assembly, which not only improves the tightness and stability of the sunroof assembly installation, but also ensures that the sunroof assembly's posture in the test is close to the actual vehicle installation posture, thus improving the accuracy of the test results. The upper surfaces of each first contoured support block 211 and each second contoured support block 221 are mounting surfaces that fit against the sunroof assembly, used to simulate the installation posture of the sunroof assembly when installed on an actual vehicle.

[0036] like Figure 2 indivual Figure 3As shown, in this embodiment, a first mounting hole 2111 is formed on the first contoured support block 211, and a second mounting hole 2211 is formed on the second contoured support block 2211. It also includes multiple first bolts, one end of each first bolt passing through the sunroof assembly and locked within the first mounting hole 2111 / second mounting hole 2211. The first mounting hole 2111 and the second mounting hole 2211 provide mounting positioning for each first bolt to lock the sunroof assembly onto the first contoured support block 211 and the second contoured support block 221, ensuring the accuracy and reliability of the connection between the sunroof assembly and the first contoured support block 211 and the second contoured support block 221. Preferably, in this embodiment, four first contoured support blocks 211 are formed on the top of the first side plate 210, and one first mounting hole 2111 is formed on each of the first contoured support blocks 2111; four second contoured support blocks 221 are formed on the top of the second side plate 220, and one second mounting hole 2211 is formed on each of the second contoured support blocks 221.

[0037] In this embodiment, threaded inserts are provided in the first mounting hole 2111 and the second mounting hole 2211. The threaded inserts are characterized by high strength and wear resistance, enhancing the reliability of the first bolt being locked within the first mounting hole 2111 / second mounting hole 2211. These threaded inserts are M6 internal threaded inserts.

[0038] like Figure 2 As shown, in this embodiment, each contoured side plate 230 has multiple third mounting holes 231 formed on its top; it also includes multiple second bolts, one end of each second bolt passing through the sunroof assembly and locked within the third mounting hole 231. The third mounting holes 231 provide mounting positioning for each second bolt to lock the sunroof assembly onto the contoured side plate 230, ensuring the reliability of the connection between the sunroof assembly and the contoured side plate 230. Preferably, in this embodiment, each contoured side plate 230 has 6 third mounting holes 231 formed on its top, and each third mounting hole 231 is also provided with the aforementioned threaded sleeve.

[0039] In summary, when installing the sunroof assembly onto the sunroof assembly mounting bracket 200, the sunroof assembly is fixed to the first side plate 210, the second side plate 220, and the contoured side plate 230 on the sunroof assembly mounting bracket 200 using the first and second bolts (the engagement of the bolts and threaded sleeves ensures that the sunroof assembly is securely installed on the sunroof assembly mounting bracket 200). Then, the gap between the sunroof assembly and the sunroof assembly mounting bracket 200 is sealed with special tape, thus completing the fixing of the sunroof assembly onto the sunroof assembly mounting bracket 200.

[0040] like Figure 1As shown, in this embodiment, the support frame 100 includes a frame body 110 and a support plate 120. The frame body 110 is used to fix it on the wind tunnel test platform; the support plate 120 is installed on the frame body 110; and the sunroof assembly mounting frame 200 is installed on the support plate 120. The frame body 110 is the load-bearing foundation supporting the sunroof assembly mounting frame 200, while the support plate 120 provides a load-bearing surface for the sunroof assembly mounting frame 200, ensuring that the sunroof assembly mounting frame 200 is installed stably.

[0041] For economic reasons, the support board 120 is a substitute for a wooden board.

[0042] like Figure 1 As shown, in this embodiment, the frame 110 includes support legs 111 and a frame 112. The support legs 111 are installed at the bottom of the frame 112 for fixing to the wind tunnel test platform; the support plate 120 is installed on the frame 112. The frame 112 serves as the main support structure for the support plate 120, and the support legs 111 can fix the frame 112 to the wind tunnel test platform, providing stable support for the frame 112.

[0043] In this preferred embodiment, the frame 110 includes six support legs 111, which are symmetrically distributed at the bottom of the frame 112.

[0044] like Figure 4 As shown, in this embodiment, the support foot 111 includes a horizontal bar 1111 and a vertical bar 1112. The two ends of the horizontal bar 1111 are respectively connected to the frame 112 through a vertical bar 1112. The horizontal bar 1111 and the vertical bar 1112 together form a support foundation for supporting the frame 112; the connection method of the horizontal bar 1111 and the vertical bar 1112 is simple in structure and easy to manufacture.

[0045] like Figure 4 As shown, in this embodiment, a reinforcing rod 113 is provided on the frame 112. The reinforcing rod 113 can enhance the structural strength of the frame 112 and ensure the stability of the frame 112 supporting the support plate 120.

[0046] Both the horizontal bar 1111 and the vertical bar 1112 are made of steel structural members and are welded to form the support foot 111; the frame 112 is also made of steel structural members and welded together, and the reinforcing bar 113 on the frame 112 is also a steel structural member and is welded onto the frame 112; the steel structure is lightweight, has high strength, and the welding operation is simple.

[0047] like Figure 1 As shown, in this embodiment, the air guide structure 300 is an air guide plate. The two opposite sides of the air guide plate are connected to the support frame 100 and the sunroof assembly fixing frame 200, respectively, forming an inclined air guide surface 310. The inclined air guide surface 310 formed by the air guide plate can simply and directly simulate the airflow guidance of the windshield. It has a simple structure and is easy to install.

[0048] In summary, when conducting wind tunnel tests on the sunroof assembly using the test bench in this embodiment, the assembly steps are as follows: First, install the support plate 120 onto the frame 110 to form the aforementioned support frame 100, and bolt the sunroof assembly mounting bracket 200 to the support plate 120. Seal the gap between the sunroof assembly mounting bracket 200 and the support plate 120 with special tape to prevent air leakage. Second, fix the support frame 100 with the installed sunroof assembly mounting bracket 200 to the test platform in the wind tunnel laboratory using a wind tunnel testing-specific fixing chain (specifically, fix the aforementioned support legs 111 to the test platform using fixing chains). Third, [the text abruptly ends here, likely due to an incomplete sentence or missing information]. The sunroof assembly with the force measuring device is screwed onto the sunroof assembly mounting bracket 200 using the first and second bolts. The gap between the sunroof assembly and the mounting bracket 200 is sealed with special tape. At this point, a sealed cavity is formed between the support plate 120, the sunroof assembly mounting bracket 200, and the sunroof assembly itself. This simulates the sealed environment inside a real vehicle and prevents air leakage during the experiment from causing errors in the force measuring device. Finally, the air guide plate is connected to the support plate 120 and the sunroof assembly mounting bracket 200 to simulate the windshield of a real vehicle. After assembly, the wind tunnel can be started to conduct wind tunnel tests on the sunroof assembly.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wind tunnel test bench for a passenger vehicle sunroof, used to support the sunroof assembly, characterized in that, include: The system includes a support frame (100), a sunroof assembly mounting frame (200), and an air guide structure (300). The support frame (100) is used to fix the system on a wind tunnel test platform. The sunroof assembly mounting frame (200) is installed on the support frame (100) and is used to install the sunroof assembly. The air guide structure (300) is installed on the support frame (100) and is connected to the sunroof assembly mounting frame (200). The sunroof assembly mounting bracket (200) includes a first side plate (210), a second side plate (220), and two oppositely arranged contoured side plates (230). The first side plate (210) and the second side plate (220) are arranged in parallel and are mounted on the support frame (100). The opposite two sides of each contoured side plate (230) are respectively connected to the first side plate (210) and the second side plate (220).

2. The wind tunnel test rig for a passenger vehicle sunroof according to claim 1, characterized in that, The top of the first side panel (210) is formed with a plurality of first contoured support blocks (211), and the top of the second side panel (220) is formed with a plurality of second contoured support blocks (221). The tops of each first contoured support block (211) and each second contoured support block (221) can fit against the sunroof assembly so that the sunroof assembly can be tightly installed on each first contoured support block (211) and each second contoured support block (221).

3. The wind tunnel test rig for a passenger vehicle sunroof according to claim 2, characterized in that, The first contoured support block (211) has a first mounting hole (2111) and the second contoured support block (221) has a second mounting hole (2211). It also includes a plurality of first bolts, one end of each first bolt passing through the sunroof assembly and locked in the first mounting hole (2111) / second mounting hole (2211).

4. The wind tunnel test rig for a passenger vehicle sunroof according to claim 3, characterized in that, Threaded sleeves are provided in the first mounting hole (2111) and the second mounting hole (2211).

5. The wind tunnel test rig for a passenger vehicle sunroof according to claim 1, characterized in that, Each of the contoured side panels (230) has a plurality of third mounting holes (231) formed on its top; it also includes a plurality of second bolts, one end of each second bolt passing through the sunroof assembly and locked in the third mounting hole (231).

6. The wind tunnel test rig for a passenger vehicle sunroof according to claim 1, characterized in that, The support frame (100) includes a frame (110) and a support plate (120). The frame (110) is used to fix it on the wind tunnel test platform. The support plate (120) is installed on the frame (110). The sunroof assembly fixing frame (200) is installed on the support plate (120).

7. A wind tunnel test rig for a passenger vehicle sunroof according to claim 6, characterized in that, The frame (110) includes a support foot (111) and a frame (112). The support foot (111) is installed at the bottom of the frame (112) for fixing to the wind tunnel test platform. The support plate (120) is installed on the frame (112).

8. A wind tunnel test rig for a passenger vehicle sunroof according to claim 7, characterized in that, The support leg (111) includes a horizontal bar (1111) and a vertical bar (1112), and the two ends of the horizontal bar (1111) are respectively connected to the frame (112) through a vertical bar (1112).

9. A wind tunnel test rig for a passenger vehicle sunroof according to claim 7, characterized in that, A reinforcing rod (113) is provided on the frame (112).

10. A wind tunnel test rig for a passenger vehicle sunroof according to claim 1, characterized in that, The air guide structure (300) is an air guide plate. The two opposite sides of the air guide plate are connected to the support frame (100) and the sunroof assembly fixing frame (200) respectively, forming an inclined air guide surface (310).

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