A multi-environment test chamber for vehicle testing
By designing a combination of movable and fixed dynamometer units in the test chamber and adjusting the dynamometer wheel hub spacing, the poor adaptability problem of fixed roller position in the prior art is solved, realizing the applicability to various vehicle specifications and easy operation of vehicle performance testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANYI ELECTROMAGNETIC TECH (YICHANG) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
The roller positions on the chassis dynamometer in the existing test chamber are relatively fixed, which makes it unsuitable for testing vehicles of various specifications. It has poor adaptability, and the gaps created after adjusting the roller spacing need to be filled manually, which is complicated to operate.
Design a multi-environment test chamber that combines movable and fixed dynamometer units. The spacing of the dynamometer hubs is adjusted by sliding rails, and the gap is closed by mounting plates and support components to accommodate various vehicle specifications. Fans and lighting equipment are used to simulate various environments for testing.
It is applicable to a variety of vehicle specifications, easy to operate, and can perform vehicle performance tests in various environments. It has a simple structure and is convenient for testing.
Smart Images
Figure CN224341252U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle testing technology, specifically relating to a multi-environment test chamber for vehicle testing. Background Technology
[0002] An environmental test chamber is a closed indoor space used for testing large equipment. For example, when conducting vehicle dynamometer tests, the equipment needs to be placed in an environmental test chamber to test the vehicle's performance by simulating various road conditions and environments.
[0003] A chassis dynamometer is an indoor bench test equipment used to test a vehicle's power performance, emissions under various operating conditions, fuel efficiency, and other performance characteristics. The chassis dynamometer uses rollers to simulate a road surface, calculates road simulation equations, and uses a loading device to simulate various operating conditions of the vehicle.
[0004] The road simulation system of the automotive chassis dynamometer mainly consists of: a roller device, a power absorption device, and an inertial simulation device.
[0005] The rotation of the rollers in a roller device is equivalent to a continuously moving road surface, upon which the wheels of the vehicle being tested roll, simulating the road surface. The roller surface can be a smooth roller, knurled roller, grooved roller, or coated roller, selected appropriately based on the application to ensure the roller's adhesion closely resembles actual road conditions. Smooth rollers are currently the most widely used type. For dual-roller smooth rollers, although the coefficient of adhesion is lower due to the increased tire-to-roller pressure, the adhesion between the wheel and the smooth roller can generate sufficient traction. Coated smooth rollers can increase adhesion and are a promising option. Knurled and grooved rollers are rarely used because the slippage rate cannot be kept constant during use.
[0006] Power absorption devices simulate the air resistance, rolling resistance of non-driving wheels, and climbing resistance experienced by a vehicle during operation. Types of power absorption devices used in chassis dynamometers on automotive testing lines include eddy current type, hydraulic type, and electric type.
[0007] The inertial simulation device uses the rotational inertia of the inertial flywheel to simulate the rotational inertia of the car's rotating mass and the inertia of the car's translating mass. It uses an electromagnetic clutch to automatically or manually switch the flywheel combination to meet the inertia simulation of the car within the allowable error range.
[0008] The normally closed brake is a disc-type normally closed pneumatic brake that is compact in size, has greater braking force, is easy to install, and has a more aesthetically pleasing appearance. It is made of die-cast material.
[0009] The problem with existing technology is that the roller positions on the chassis dynamometer in the existing test chamber are relatively fixed, which makes it unsuitable for testing vehicles of various specifications and results in poor adaptability; some dynamometers have adjustable roller spacing, but the gaps created after the roller spacing adjustment need to be filled manually to allow vehicles to pass through, which is complicated to operate. Summary of the Invention
[0010] The purpose of this invention is to address the problems existing in the prior art by providing a multi-environment test chamber for vehicle testing, which has the advantages of simple operation, good applicability, and simple structure.
[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-environment test chamber for vehicle testing, comprising a test chamber body, a door provided on the test chamber body, a support frame provided on the bottom surface of the test chamber body, a support floor provided on the top surface of the support frame, a dynamometer assembly provided on the support frame, the dynamometer assembly being divided into a movable dynamometer unit and a fixed dynamometer unit fixed on the support frame, the fixed dynamometer unit including a rotatable dynamometer hub, a slide rail provided at the bottom of the support frame, the movable dynamometer unit being slidably mounted on the slide rail, the movable dynamometer unit including a rotatable dynamometer hub, an installation port and an adjustment groove provided on the support floor, the dynamometer hub being located at the installation port, an installation plate provided on the movable dynamometer unit, the installation plate being slidably mounted in the adjustment groove, an installation port being provided on the installation plate, the dynamometer hub being located at the installation port, and several support members provided in the adjustment groove.
[0012] In the above scheme, the test chamber is accessed through a hatch. The support floor at the top of the support frame supports the vehicle. The dynamometer assembly is installed on the support frame. The dynamometer assembly cooperates with the vehicle's wheels through dynamometer hub one and dynamometer hub two to transmit wheel working information and conduct performance tests. The fixed dynamometer unit is fixed on the support frame, while the movable dynamometer unit can slide along the slide rail to adjust the distance between dynamometer hub one and dynamometer hub two, adapting to various vehicle specifications. The top of dynamometer hub one corresponds to mounting port one, and the top of dynamometer hub two corresponds to mounting port two, to support the bottom of the vehicle. The gap of the adjustment slide is sealed by the mounting plate and support components, facilitating the movement and positioning of the vehicle.
[0013] Furthermore, the fixed dynamometer unit includes a mounting base one, and the dynamometer hub one is rotatably mounted on the mounting base one. The movable dynamometer unit includes a mounting base two, and the dynamometer hub two is rotatably mounted on the mounting base two. Both the mounting base one and the mounting base two are provided with a detection mechanism.
[0014] Mounting bracket one is used to rotatably connect to dynamometer hub one, and mounting bracket two is used to rotatably connect to dynamometer hub two, so that the vehicle operation data can be tested by the testing mechanism.
[0015] Furthermore, the second mounting base is provided with a connector, the top of which is fixed to the mounting plate.
[0016] Connectors are provided for connection to the mounting plate, facilitating the synchronous movement of the mounting plate and the movable dynamometer unit.
[0017] Furthermore, a rack is provided on the support frame, and a gear drive assembly for cooperating with the rack is provided on the mounting base two.
[0018] A rack is installed on the support frame to cooperate with the gear drive assembly on the mounting base two, so as to realize the movement of the movable dynamometer unit.
[0019] Furthermore, the support frame is provided with a guide member, and the bottom of the mounting base two is provided with a braking member for cooperating with the guide member.
[0020] The guide component engages with the brake component at the bottom of the mounting base to lock the position of the movable dynamometer unit, ensuring the stability of the support for the vehicle on top.
[0021] Furthermore, the support member is connected to both sides of the mounting plate, and the support member includes a plurality of support body units that are rotatably connected in sequence. The support frame is provided with guide grooves that mate with both ends of the adjustment groove, and the guide grooves are used to slide with the support member.
[0022] Several support units are connected in sequence and can be adjusted according to the shape of the guide slide and the adjustment slide, which facilitates the turning and limiting of the support units on both sides when the position of the movable dynamometer unit is adjusted.
[0023] Furthermore, the test chamber is equipped with a fan and lighting equipment.
[0024] The test simulates strong wind and sunlight conditions using fans and lighting equipment.
[0025] Furthermore, the test chamber is equipped with an openable and closable partition door, which divides the environmental test chamber into an inner chamber and an outer chamber. The inner chamber is equipped with a fan, and the outer chamber is equipped with lighting equipment.
[0026] Partition doors are installed to accommodate the selected test chambers as needed. When the vehicle is long, the partition doors can be opened to accommodate the entire vehicle for testing. Both the inner and outer chambers have supporting frames at their bottoms, and corresponding dynamometer components are installed there.
[0027] Compared with the prior art, the beneficial effects of this utility model are:
[0028] 1. By sliding the movable dynamometer unit and the fixed dynamometer unit on the support frame, the distance between the movable dynamometer unit and the fixed dynamometer unit can be adjusted by sliding the movable dynamometer unit along the slide rail. It is suitable for testing vehicles of various specifications and has good applicability. The partition door facilitates testing in various environments as needed, making testing convenient.
[0029] 2. A mounting plate is installed on the top of the movable dynamometer unit, and support components are installed on both sides of the mounting plate. The support components automatically close the adjustment slide during the movement of the movable dynamometer unit, which facilitates vehicle movement, is easy to operate, and has a simple structure.
[0030] 3. By installing fans and lighting equipment inside the test chamber, along with dynamometer components, vehicle performance testing can be conducted in various environments. The structure is simple and has good applicability. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of a multi-environment test chamber for vehicle testing according to Embodiment 1 of this utility model;
[0032] Figure 2 The structural three-dimensional support frame in Embodiment 1 of this utility model Figure 1 ;
[0033] Figure 3 The structural three-dimensional support frame in Embodiment 1 of this utility model Figure 2 ;
[0034] Figure 4 This is a three-dimensional structural view of the braking component in Embodiment 1 of this utility model;
[0035] Figure 5 The structural three-dimensional representation of the dynamometer hub in Embodiment 1 of this utility model. Figure 1 ;
[0036] Figure 6 The structural three-dimensional representation of the dynamometer hub in Embodiment 1 of this utility model. Figure 2 ;
[0037] In the diagram: 1. Inner cabin; 2. Cabin door; 3. Support frame; 4. Support floor; 5. Fixed dynamometer unit; 6. Movable dynamometer unit; 7. Dynamometer hub one; 8. Dynamometer hub two; 9. Slide rail; 10. Mounting port one; 11. Mounting port two; 12. Adjustment slide; 13. Mounting plate; 14. Mounting seat one; 15. Mounting seat two; 16. Torque sensor; 17. Encoder; 18. Connector; 19. Rack; 20. Gear drive assembly; 21. Guide component; 22. Braking component; 23. Vertical slot; 24. Support unit; 25. Horizontal slot; 26. Fan; 27. Lighting equipment; 28. Outer cabin; 29. Partition door. Detailed Implementation
[0038] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms front, back, left, right, etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0039] like Figure 1-6 As shown, a multi-environment test chamber for vehicle testing includes a test chamber body with a door 2. A support frame 3 is mounted on the bottom of the test chamber body, and a support floor 4 is mounted on the top of the support frame 3. A dynamometer assembly is mounted on the support frame 3, comprising a fixed dynamometer unit 5 and a movable dynamometer unit 6. The fixed dynamometer unit 5 is fixed to the support frame 3 and includes a rotatable dynamometer hub 7. A slide rail 9 is provided at the bottom of the support frame 3. The movable dynamometer unit 6 is slidably mounted on the slide rail 9. The movable dynamometer unit 6 includes a rotatable dynamometer hub 8. The support base 4 has an installation port 10 and an adjustment groove 12. The dynamometer hub 7 is located at the installation port 10. The movable dynamometer unit 6 is provided with an installation plate 13. The installation plate 13 is slidably mounted in the adjustment groove 12. The installation plate 13 has an installation port 11. The dynamometer hub 8 is located at the installation port 11. Several support members are provided in the adjustment groove 12.
[0040] In the above scheme, the test chamber is accessed and exited through the hatch 2. The support floor 4 on the top of the support frame 3 is used to support the vehicle. The dynamometer assembly is installed on the support frame 3. The dynamometer assembly cooperates with the vehicle's wheels through dynamometer hub 1 7 and dynamometer hub 2 8 to transmit wheel working information and conduct performance tests. The fixed dynamometer unit 5 is fixed on the support frame 3. The movable dynamometer unit 6 can slide along the slide rail 9 to adjust the distance between dynamometer hub 1 7 and dynamometer hub 2 8 to adapt to various vehicle specifications. The top of dynamometer hub 1 7 corresponds to mounting port 10, and the top of dynamometer hub 2 8 corresponds to mounting port 2 11 to support the bottom of the vehicle. The gap of the adjustment slide 12 is closed by the mounting plate 13 and the support component to facilitate the movement and positioning of the vehicle.
[0041] Furthermore, the fixed dynamometer unit 5 includes a mounting base 14, and the dynamometer hub 7 is rotatably mounted on the mounting base 14. The movable dynamometer unit 6 includes a mounting base 2 15, and the dynamometer hub 2 8 is rotatably mounted on the mounting base 2 15. Both the mounting base 14 and the mounting base 2 15 are provided with a detection mechanism.
[0042] Mounting bracket 14 is used to rotatably connect to dynamometer hub 7, and mounting bracket 25 is used to rotatably connect to dynamometer hub 8, so that the vehicle operation data can be tested by the testing agency.
[0043] The testing mechanism includes a torque sensor 16 and an encoder 17. The encoder 17 can be used to test the wheel speed and calculate the power by using the speed and torque.
[0044] Furthermore, a connector 18 is provided on the second mounting base 15, and the top of the connector 18 is fixed to the mounting plate 13.
[0045] Connector 18 is provided to connect with mounting plate 13, which facilitates the synchronous movement of mounting plate 13 and movable dynamometer unit 6.
[0046] Connector 18 includes a metal bracket.
[0047] Furthermore, a rack 19 is provided on the support frame 3, and a gear drive assembly 20 for cooperating with the rack 19 is provided on the mounting base 2 15.
[0048] A rack 19 is provided on the support frame 3 to cooperate with the gear drive assembly 20 on the mounting base 2 15 to realize the movement of the movable dynamometer unit 6.
[0049] The gear drive assembly 20 includes a motor and a gear. The motor drives the gear to rotate, and the gear meshes with the rack 19 to achieve position adjustment.
[0050] Furthermore, the support frame 3 is provided with a guide member 21, and the bottom of the mounting base 2 15 is provided with a braking member 22 for cooperating with the guide member 21.
[0051] The guide 21 cooperates with the brake 22 at the bottom of the mounting base 2 15 to lock the position of the movable dynamometer unit 6, ensuring the stability of the support for the vehicle on top.
[0052] Braking component 22 includes a normally closed brake caliper.
[0053] Furthermore, the support member is connected to both sides of the mounting plate 13. The support member includes a plurality of support body units 24 that are rotatably connected in sequence. The support frame 3 is provided with guide grooves that mate with both ends of the adjusting slide groove 12. The guide grooves are used to slide with the support member.
[0054] Several support units 24 are rotatably connected in sequence and can be adjusted according to the shape of the guide slide and the adjustment slide 12, which facilitates the turning and limiting of the support units 24 on both sides when the position of the movable dynamometer unit 6 is adjusted.
[0055] The guide chute includes vertical grooves 23 that mate with both ends of the adjusting chute 12, and a transverse groove 25 is provided between the bottom ends of the two vertical grooves 23. Adjacent support units 24 are rotatably connected by pivot pins.
[0056] Furthermore, the test chamber is equipped with a fan 26 and lighting equipment 27.
[0057] The wind and sunlight environment are simulated by using a fan 26 and a lighting device 27.
[0058] Furthermore, the test chamber is equipped with an openable and closable partition door, which divides the environmental test chamber into an inner chamber 1 and an outer chamber 28. A fan 26 is installed in the inner chamber 1, and a lighting device 27 is installed in the outer chamber 28.
[0059] Partition doors are installed to accommodate the selected test chambers as needed. When the vehicle is long, the partition doors can be opened to accommodate the entire vehicle for testing. Both the inner chamber 1 and the outer chamber 28 have support frames 3 at their bottoms, and corresponding dynamometer components are installed thereon.
[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-environment test chamber for vehicle testing, comprising a test chamber body, wherein the test chamber body is provided with a door, characterized in that, The bottom surface of the test chamber is provided with a support frame, and the top surface of the support frame is provided with a support floor. A dynamometer assembly is provided on the support frame. The dynamometer assembly is divided into a movable dynamometer unit and a fixed dynamometer unit fixed on the support frame. The fixed dynamometer unit includes a rotatable dynamometer hub. The bottom of the support frame is provided with a slide rail. The movable dynamometer unit is slidably mounted on the slide rail. The movable dynamometer unit includes a rotatable dynamometer hub. The support floor has an installation port and an adjustment groove. The dynamometer hub is located at the installation port. The movable dynamometer unit is provided with an installation plate. The installation plate is slidably mounted in the adjustment groove. The installation plate has an installation port. The dynamometer hub is located at the installation port. Several support components are provided in the adjustment groove.
2. The multi-environment test chamber for vehicle testing according to claim 1, characterized in that, The fixed dynamometer unit includes a mounting base one, and the dynamometer hub one is rotatably mounted on the mounting base one. The movable dynamometer unit includes a mounting base two, and the dynamometer hub two is rotatably mounted on the mounting base two. Both the mounting base one and the mounting base two are provided with a detection mechanism.
3. The multi-environment test chamber for vehicle testing according to claim 2, characterized in that, The second mounting base is provided with a connector, and the top of the connector is fixed to the mounting plate.
4. The multi-environment test chamber for vehicle testing according to claim 2, characterized in that, The support frame is provided with a rack, and the mounting base 2 is provided with a gear drive assembly for cooperating with the rack.
5. The multi-environment test chamber for vehicle testing according to claim 4, characterized in that, The support frame is provided with a guide, and the bottom of the mounting base is provided with a braking element for cooperating with the guide.
6. The multi-environment test chamber for vehicle testing according to claim 1, characterized in that, The support member is connected to both sides of the mounting plate. The support member includes a plurality of support body units that are rotatably connected in sequence. The support frame is provided with guide grooves that mate with both ends of the adjustment groove. The guide grooves are used to slide with the support member.
7. The multi-environment test chamber for vehicle testing according to claim 1, characterized in that, The test chamber is equipped with fans and lighting equipment.
8. The multi-environment test chamber for vehicle testing according to claim 7, characterized in that, The test chamber is equipped with an openable and closable partition door, which divides the environmental test chamber into an inner chamber and an outer chamber. The inner chamber is equipped with a fan, and the outer chamber is equipped with lighting equipment.