Automobile power assembly detection cabin with environment simulation function
By introducing an environmental simulation system and a heat storage device into the testing chamber, the problem of poor data representativeness under normal temperature testing was solved, and accurate data acquisition and energy saving under different operating conditions were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 北京市产品质量监督检验研究院
- Filing Date
- 2026-03-11
- Publication Date
- 2026-06-05
Smart Images
Figure CN122149875A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive testing technology, and more specifically to an automotive powertrain testing chamber with environmental simulation function. Background Technology
[0002] The automotive powertrain testing chamber is a specialized device used for comprehensive performance testing and verification of powertrain components such as engines and transmissions. Its structure mainly consists of a high-strength chamber, a powertrain fixing and clamping mechanism, and a dynamometer. As the core loading and measurement device, the dynamometer can simulate various load conditions in actual vehicle driving and accurately collect core performance parameters of the powertrain such as torque, speed, and power. The existing testing chamber is also equipped with a fuel and coolant supply simulation system, sensor array, data acquisition and control unit, and safety protection devices. It can comprehensively test the power, economy, reliability, and emission performance of the powertrain, providing reliable test data support for R&D optimization, quality inspection, fault diagnosis, and performance calibration.
[0003] However, the existing technology has the following problems: Most existing automotive powertrain testing chambers conduct tests in an indoor, normal-temperature environment. However, vehicles are exposed to a variety of environmental conditions during their use, including conventional environmental conditions such as high temperature, low temperature, high humidity, and low humidity, as well as extreme environmental conditions. Therefore, test data obtained under normal-temperature conditions cannot effectively reflect the actual operating data of the powertrain under various conditions, and its reliability and representativeness are poor. Summary of the Invention
[0004] The purpose of this invention is to provide an automotive powertrain testing chamber with environmental simulation function to solve the above-mentioned problems. It aims to overcome the shortcomings of test data obtained under normal temperature conditions, which cannot effectively reflect the real operating data of the powertrain under various working conditions and have poor reliability and representativeness. Details are described below.
[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an automotive powertrain testing chamber with environmental simulation function, including a chamber body and dynamometers on both sides, and an environmental simulation system. The environmental simulation system includes a refrigerator, a humidifier, and a heater. The chamber body is equipped with a heat storage device to reduce heat loss. The chamber body is equipped with a detection component to detect temperature and humidity data within the chamber. The heat storage device includes a first air box, a second air box, a heat storage pipe, a fan, an air duct, and a third air box connected in sequence. The first and third air boxes are both connected to the chamber body. A spiral heat storage plate is installed inside the heat storage pipe, and the spiral heat storage plate is filled with paraffin wax.
[0006] Preferably, the refrigeration unit and the humidifier are each provided with an exhaust port, both of which are connected to the cabin body, and the heater is installed inside the cabin body.
[0007] Preferably, the first and second wind boxes are both installed on the top of the cabin, the third wind box is installed at the bottom of the cabin, the heat storage pipes are distributed in a serpentine pattern, and an isolation chamber is provided on the rear side of the cabin, where the heat storage pipes, fans and air ducts are all located.
[0008] Preferably, the detection assembly includes a main unit, a temperature probe, and a humidity probe. A hollow shaft is rotatably connected inside the second air box. The bottom of the hollow shaft extends downward through the top of the cabin. A turntable is connected to the bottom end of the hollow shaft. The temperature probe and the humidity probe are both mounted on the turntable. The main unit is mounted on the outer wall of the top of the cabin. The main unit is used to power the temperature probe and the humidity probe and to collect temperature and humidity data.
[0009] Preferably, a rotating joint is installed at the bottom of the turntable, and an electric rod is connected between the rotating joint and the main unit. The electric rod contains a first wire that is electrically connected to the main unit. The rotating joint has two second wires that are electrically connected to a temperature probe and a humidity probe, respectively. The rotating joint is electrically connected to the first wire. The electric rod passes downward through the interior of the hollow shaft and the center of the turntable, and is rotatably connected to the rotating joint.
[0010] Preferably, an impeller is connected to the outer wall of the hollow shaft, and the impeller is located inside the second air box. When the gas flows inside the second air box, it can drive the impeller to rotate.
[0011] Preferably, the cabin is equipped with a spoiler assembly, which includes two fixed rods. The two fixed rods are respectively installed at two rear corners of the cabin. Multiple spoilers are hinged to the fixed rods. A first slide rod is vertically slidably connected to the fixed rod. Multiple pairs of levers are installed on the first slide rod. When the multiple pairs of levers move, they contact the multiple spoilers respectively. When the two levers in a pair move, they contact the top and bottom surfaces of the spoilers respectively. The spoiler assembly also includes a linkage mechanism for driving the two first slide rods to move vertically back and forth.
[0012] Preferably, the linkage mechanism includes two second slide rods, both of which are horizontally slidably connected to the inner wall of the bottom of the cabin. One end of each second slide rod is hinged to a connecting rod, and the other end of each second slide rod is connected to a sliding shaft. The ends of the two connecting rods away from the second slide rods are respectively hinged to the two first slide rods. The turntable is provided with a plum blossom groove, and both sliding shafts are slidably connected to the plum blossom groove. When the plum blossom groove rotates, it drives the second slide rods to move back and forth through the sliding shafts.
[0013] Preferably, the chamber is equipped with a decondensation assembly, which includes two cotton rollers. A support is installed on the top inner wall of the chamber, and both cotton rollers are rotatably mounted on the support. The two cotton rollers are in contact with each other, and the contact points of the two cotton rollers are located on the movement trajectories of the temperature probe and the humidity probe.
[0014] Preferably, one of the cotton rollers is connected to a friction wheel at its top end, the friction wheel being in contact with the edge of the turntable, and the bottom ends of the two cotton rollers are respectively connected to gears, the two gears meshing.
[0015] The beneficial effects are: 1. This automotive powertrain testing chamber with environmental simulation function, through the setting of the environmental simulation system, utilizes the coordinated operation of a refrigeration unit, a humidifier, and a heater to flexibly switch between different environmental modes, covering all environmental scenarios that the powertrain may encounter throughout its entire life cycle. This makes the powertrain success rate, torque, fuel consumption, durability, and other data detected by the dynamometer more representative and reliable, providing accurate and reliable experimental data support for powertrain design optimization and quality testing.
[0016] 2. This automotive powertrain testing chamber with environmental simulation function uses a heat storage device to collect and store heat within the chamber during the heating and cooling process using the phase change heat storage mechanism of paraffin through the spiral heat storage plates inside the heat storage pipe. The heat is then released when needed, thereby reducing the energy consumption of the refrigeration unit and heater. It also assists in temperature conversion, making the temperature conversion within the chamber more stable. It is especially suitable for long-term, high-frequency heating and cooling environment testing scenarios.
[0017] 3. This automotive powertrain testing chamber with environmental simulation function utilizes the idle kinetic energy of the circulating gas in the heat storage device through the setting of the detection components, enabling the temperature and humidity probes to contact various areas inside the chamber during movement, thereby improving the accuracy of the detection data; through the setting of the turbulence component, the turbulence plates on the two fixed rods swing back and forth inside the chamber, thereby playing a turbulence role, making the temperature and humidity distribution inside the chamber more uniform, and improving the accuracy of temperature and humidity data acquisition.
[0018] 4. This automotive powertrain testing chamber with environmental simulation function, through the setting of the decondensation component, enables the two cotton rollers to quickly absorb the condensation on the surface of the temperature probe or humidity probe during the contact process, while gently wiping it, thereby maintaining the cleanliness and dryness of the surface of the temperature probe and humidity probe, and ensuring the stable operation of the detection component. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the refrigeration unit and humidifier of the present invention; Figure 3 This is a schematic diagram of the cabin structure of the present invention; Figure 4 This is a schematic diagram of the thermal storage device of the present invention; Figure 5 This is a schematic diagram of the spiral heat storage plate structure of the present invention; Figure 6 This is a schematic diagram of the third bellows structure of the present invention; Figure 7 This is a schematic diagram of the detection component structure of the present invention; Figure 8 This is a schematic diagram of the turbulence component structure of the present invention; Figure 9 This is a schematic diagram of the rotating joint structure of the present invention; Figure 10 This is a schematic diagram of the plum blossom groove structure of the present invention; Figure 11 This is a schematic diagram of the dew removal component structure of the present invention.
[0021] The annotations in the attached figures are explained as follows: 1. Cabin; 2. Dynamometer; 3. Refrigeration unit; 4. Humidity meter; 5. Heater; 6. Thermal storage device; 61. First air box; 62. Second air box; 63. Thermal storage pipe; 631. Spiral thermal storage fins; 64. Fan; 65. Air duct; 66. Third air box; 7. Detection assembly; 71. Hollow shaft; 72. Impeller; 73. Turntable; 74. Temperature probe; 75. Humidity probe; 76. Rotary joint; 77. Power supply rod; 78. Main unit; 8. Spoiler assembly; 81. Fixed rod; 82. Spoiler plate; 83. First slide rod; 84. Detachment rod; 85. Second slide rod; 86. Connecting rod; 87. Sliding shaft; 88. Plum blossom groove; 9. Dew removal assembly; 91. Support; 92. Cotton roller; 93. Friction wheel; 94. Gear. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0023] The first embodiment of the present invention is as follows: Please see Figure 1 - Figure 6 A vehicle powertrain testing chamber with environmental simulation function includes a chamber body 1 and dynamometers 2 on both sides, and an environmental simulation system. The environmental simulation system includes a chiller 3, a humidifier 4, and a heater 5. The chiller 3 and humidifier 4 are each equipped with an exhaust port, both of which are connected to the chamber body 1. The heater 5 is installed inside the chamber body 1. The dynamometers 2 are used to perform load tests on the vehicle powertrain to simulate actual driving conditions. After the chiller 3 is started, it delivers cold air into the chamber body 1 through the exhaust port to cool the chamber and meet the low-temperature environment simulation requirements. After the humidifier 4 is started, it delivers humid air into the chamber body 1 through the exhaust port to regulate the humidity inside the chamber body 1 and adapt to different humidity conditions such as high humidity and low humidity. After the heater 5 is started, it directly heats the air inside the chamber body 1 to achieve rapid temperature rise and meet the high-temperature environment simulation requirements. The chiller 3, humidifier 4, and heater 5 are connected to a higher-level control system. The system is controlled by a host computer with multiple preset environmental modes, including high temperature, low temperature, high temperature and high humidity, high temperature and low humidity, low temperature and high humidity, low temperature and low humidity, and alternating hot and cold environments. By setting the environmental mode on the host computer, the system can simulate high temperature, low temperature, high temperature and high humidity, high temperature and low humidity, low temperature and high humidity, and alternating hot and cold environments within the chamber 1 through the coordinated operation of the refrigeration unit 3, humidity unit 4, and heater 5. Different environmental modes can be flexibly switched according to the powertrain testing requirements. The setting of multiple environmental modes can cover all environmental scenarios that the powertrain may encounter throughout its entire life cycle, making the powertrain success rate, torque, fuel consumption, durability, and other data detected by the dynamometer 2 more representative, providing accurate and reliable experimental data support for powertrain design optimization and quality testing.
[0024] Furthermore, a heat storage device 6 is installed inside the cabin 1 to reduce heat loss. The heat storage device 6 includes a first air box 61, a second air box 62, a heat storage pipe 63, a fan 64, an air duct 65, and a third air box 66 connected in sequence. Both the first air box 61 and the third air box 66 are connected to the cabin 1. A spiral heat storage plate 631 is installed inside the heat storage pipe 63, and the spiral heat storage plate 631 is filled with paraffin wax. The input end of the fan 64 is connected to the heat storage pipe 63, and the output end of the fan 64 is connected to the air duct 65. When the fan 64 is started... Then, the air inside the chamber 1 can circulate within the chamber 1, the first air box 61, the second air box 62, the heat storage pipe 63, the fan 64, the air duct 65, the third air box 66, and the chamber 1. The spiral heat storage plate 631 inside the heat storage pipe 63 can cause the air to swirl inside the pipe, thereby increasing the contact area between the air and the spiral heat storage plate 631. The outer wall of the spiral heat storage plate 631 is made of thermally conductive metal, and the paraffin wax filled inside is used as a phase change heat storage material, which has the characteristics of large latent heat of phase change and stable phase change temperature. When the chamber 1 When transitioning from high to low temperature, the fan 64 is first activated, allowing hot air from the chamber 1 to enter the heat storage pipe 63 via the first air box 61 and the second air box 62. The heat of the hot air is transferred to the paraffin wax through the spiral heat storage plate 631, causing the paraffin wax to change from solid to liquid, thus storing heat. The hot air releases heat and returns to the chamber 1 through the third air box 66. After a period of circulation, the temperature inside the chamber 1 decreases, and the paraffin wax stores heat. Then, the refrigerator 3 is activated, enabling it to lower the temperature inside the chamber 1 more quickly and save energy. Conversely, when the chamber 1 needs to be heated again, the fan 64 is activated again, and the gas is circulated again. The cold air from the chamber 1 enters the heat storage pipe 63, at which point the liquid paraffin wax releases the stored heat and changes to solid, transferring the heat to the cold air. This causes the temperature of the gas returning to the chamber 1 from the third air box 66 to rise. After a period of circulation, the paraffin wax completely solidifies again, and the temperature inside the chamber 1 rises. At this point, the heater 5 is activated, effectively saving energy consumption and accelerating heating efficiency.
[0025] Furthermore, the first and second air boxes 61 and 62 are both installed on the top of the cabin 1, and the third air box 66 is installed at the bottom of the cabin 1. The heat storage pipes 63 are distributed in a serpentine pattern. An isolation chamber is provided at the rear of the cabin 1. The heat storage pipes 63, the fan 64, and the duct 65 are all located in the isolation chamber at the rear of the cabin 1. The first air box 61 serves as the gas intake at the top of the cabin 1, and the third air box 66 serves as the gas outlet at the bottom of the cabin 1. When the fan 64 is started, the gas in the cabin 1 rises into the first air box 61, circulates, and then flows back from the bottom of the cabin 1. This allows the circulating airflow to effectively cover most of the space inside the cabin 1, improving heat exchange efficiency. The serpentine distribution of the heat storage pipes 63 allows for maximizing the length of the heat storage pipes 63 within the limited isolation chamber, thereby increasing the heat exchange area. It also extends the residence time of the gas in the heat storage pipes 63, making heat exchange more complete. The isolation chamber is made of insulation material, which improves the heat storage effect and facilitates maintenance.
[0026] In this embodiment, when simulating alternating hot and cold environments, the heater 5 and the refrigerator 3 need to operate alternately. The heater 5 needs to start heating from a low temperature when heating, while the refrigerator 3 needs to start cooling from a high temperature when cooling. Both require a large amount of energy consumption. However, by setting up the heat storage device 6, the spiral heat storage plate 631 in the heat storage pipe 63 uses the phase change heat storage mechanism of paraffin to collect and store the heat in the chamber 1 during the hot and cold conversion process, and release it again when needed. This reduces the energy consumption of the refrigerator 3 and the heater 5, and also plays an auxiliary role in temperature conversion, making the temperature conversion in the chamber 1 more stable. It is especially suitable for long-term, high-frequency hot and cold environment detection scenarios.
[0027] Based on the above embodiments, the second embodiment of the present invention is as follows: Please see Figure 3 , Figure 7 - Figure 9The cabin 1 is equipped with a detection component 7 for detecting temperature and humidity data within the cabin 1. The detection component 7 includes a main unit 78, a temperature probe 74, and a humidity probe 75. A hollow shaft 71 is rotatably connected inside the second air box 62. The bottom of the hollow shaft 71 extends downward through the top of the cabin 1, and a turntable 73 is connected to the bottom end of the hollow shaft 71. The temperature probe 74 and humidity probe 75 are both mounted on the turntable 73. The main unit 78 is mounted on the top outer wall of the cabin 1. The main unit 78 is used to power the temperature probe 74 and humidity probe 75 and to collect temperature and humidity data. According to the data acquisition module, power supply module, and signal transmission module built into the main unit 78, the power supply module provides power to the temperature probe 74 and humidity probe 75, the data acquisition module is used to receive the electrical signals transmitted by the temperature probe 74 and humidity probe 75 and convert them into digital temperature and humidity data, and the signal transmission module transmits the digital data to the host computer in real time. The host computer automatically adjusts the operating status of the refrigeration unit 3, the humidity unit 4, and the heater 5 according to the difference between the feedback data and the preset parameters, forming a closed-loop control to ensure that the temperature and humidity inside the cabin 1 are accurately up to standard.
[0028] In addition, a rotating joint 76 is installed at the bottom of the turntable 73. A power-conducting rod 77 connects the rotating joint 76 to the main unit 78. The power-conducting rod 77 contains a first wire that is electrically connected to the main unit 78. Two second wires are provided on the rotating joint 76. The two second wires are electrically connected to the temperature probe 74 and the humidity probe 75, respectively. The rotating joint 76 is electrically connected to the first wire. The power-conducting rod 77 passes downward through the interior of the hollow shaft 71 and the center of the turntable 73, and is rotatably connected to the rotating joint 76. The rotating joint 76 adopts a conductive slip ring structure, so that the turntable 73 maintains a conductive connection when rotating at the bottom of the power-conducting rod 77. The power output by the main unit 78 is transmitted to the temperature probe 74 and the humidity probe 75 through the first wire, the rotating joint 76, and the second wire. At the same time, the temperature and humidity electrical signals collected by the temperature probe 74 and the humidity probe 75 are transmitted back to the main unit 78 through the second wire, the rotating joint 76, and the first wire. The characteristics of the rotating joint 76 are used to avoid the problem of wire entanglement during the rotation of the turntable 73.
[0029] It is worth noting that an impeller 72 is connected to the outer wall of the hollow shaft 71. The impeller 72 is located inside the second air box 62. When the gas flows inside the second air box 62, it can drive the impeller 72 to rotate. After the fan 64 is started, the gas in the cabin 1 enters the second air box 62 through the first air box 61. The gas flowing in the second air box 62 impacts the impeller 72, thereby driving the impeller 72 to rotate. When the impeller 72 rotates, it drives the hollow shaft 71 to rotate synchronously. The hollow shaft 71 drives the turntable 73 to rotate, ultimately achieving the technical effect of the turntable 73 driving the temperature probe 74 and humidity probe 75 to rotate and detect. It utilizes the idle kinetic energy of the circulating gas in the heat storage device 6, enabling the temperature probe 74 and humidity probe 75 to contact various areas inside the cabin 1 during the movement, thereby improving the accuracy of the detection data.
[0030] Based on the above embodiments, the third embodiment of the present invention is as follows: Please see Figure 3 , Figure 7 - Figure 10 The cabin 1 is equipped with a spoiler assembly 8, which includes two fixed rods 81, which are respectively installed at the two rear corners of the cabin 1. Multiple spoilers 82 are hinged to the fixed rods 81. A first slide rod 83 is vertically slidably connected to the fixed rod 81. Multiple pairs of levers 84 are installed on the first slide rod 83. When the levers 84 move, they contact the multiple spoilers 82 respectively. When a pair of levers 84 moves, they contact the top and bottom surfaces of the spoilers 82 respectively. The spoiler assembly 8 also includes a linkage mechanism for driving the two first slide rods 83 to move vertically back and forth; when the first slide rod 83 moves vertically back and forth, the levers 84 above it move synchronously. Taking a pair of levers 84 and a spoiler 82 as an example, when the lever 84 above the spoiler 82 moves down, it can cause the spoiler 82 to swing downward. When the lever 84 below the spoiler 82 moves up, it can cause the spoiler 82 to swing upward. There is a preset gap between the two levers 84 and the spoiler 82, so there will be no motion interference. When the first slide bar 83 moves vertically back and forth, it can drive multiple spoilers 82 to swing up and down back and forth through the lever 84 above it. The spoilers 82 on the two fixed rods 81 swing back and forth in the cabin 1, which can play a turbulence role, making the temperature and humidity distribution in the cabin 1 more uniform, and improving the accuracy of temperature and humidity data acquisition.
[0031] It is worth noting that the linkage mechanism includes two second slide rods 85, both of which are horizontally slidably connected to the inner wall of the bottom of the cabin 1. One end of each second slide rod 85 is hinged to a connecting rod 86, and the other end is connected to a sliding shaft 87. The ends of the two connecting rods 86 away from the second slide rods 85 are respectively hinged to two first slide rods 83. A perforated groove 88 is provided on the turntable 73, and both sliding shafts 87 are slidably connected to the perforated groove 88. When the perforated groove 88 rotates, it drives the second slide rods 85 to reciprocate through the sliding shafts 87; the sliding shafts 87 can... It can slide flexibly in the plum blossom groove 88. When the turntable 73 rotates, the plum blossom groove 88 rotates synchronously with the turntable 73. Since the second slide rod 85 can only move horizontally, the plum blossom groove 88 will repeatedly generate horizontal thrust and pull force on the slide shaft 87 when it rotates, causing the slide shaft 87 and the second slide rod 85 to move back and forth in the horizontal direction. The horizontal reciprocating motion of the second slide rod 85 is transmitted to the first slide rod 83 through the connecting rod 86, driving the first slide rod 83 to move vertically back and forth along the fixed rod 81, and finally driving the spoiler 82 to swing back and forth through the lever 84.
[0032] Based on the above embodiments, the fourth embodiment of the present invention is as follows: Please see Figure 3 , Figure 11The chamber 1 is equipped with a decondensation assembly 9, which includes two cotton rollers 92. A support 91 is installed on the inner top wall of the chamber 1. Both cotton rollers 92 are rotatably mounted on the support 91 and are in contact with each other. The contact points of the two cotton rollers 92 are located on the movement trajectories of the temperature probe 74 and the humidity probe 75. The support 91 provides stable support for the rotation of the two cotton rollers 92. The two cotton rollers 92 are made of highly absorbent, high-temperature resistant, and corrosion-resistant fiber cotton, which can closely fit the surface of the temperature probe 74 or the humidity probe 75. A gap is formed at the contact points of the two cotton rollers 92, allowing the temperature probe 74 and the humidity probe 75 to rotate smoothly. When the temperature probe 74 and humidity probe 75 are exposed to high humidity and alternating hot and cold temperatures, condensation is easily formed on their surfaces. This condensation can cause deviations in the detection data. When the turntable 73 rotates the temperature probe 74 and humidity probe 75 to the contact area of the two cotton rollers 92, the temperature probe 74 or humidity probe 75 passes through the gap between the two cotton rollers 92. During the contact process, the cotton rollers 92 quickly absorb the condensation on the surface of the temperature probe 74 or humidity probe 75 and gently wipe it, thereby maintaining the cleanliness and dryness of the surface of the temperature probe 74 and humidity probe 75 and ensuring the stable operation of the detection component 7.
[0033] It is worth mentioning that one of the cotton rollers 92 is connected to a friction wheel 93 at its top, and the friction wheel 93 contacts the edge of the turntable 73. The bottom ends of the two cotton rollers 92 are respectively connected to gears 94, and the two gears 94 mesh. The contact surface between the friction wheel 93 and the turntable 73 is provided with anti-slip texture, which has a large friction force. When the turntable 73 rotates, it can drive the friction wheel 93 to rotate through the friction force, and then drive the cotton roller 92 connected to the friction wheel 93 to rotate. Since the gears 94 at the bottom ends of the two cotton rollers 92 mesh with each other, when one cotton roller 92 rotates, it will drive the other cotton roller 92 to rotate in the opposite direction through the gear 94. The two cotton rollers 92 can continuously change the contact parts with the temperature probe 74 or humidity probe 75 through continuous rotation. At the same time, the mutual rotation contact shakes off the impurities and excess moisture attached to the surface, thereby maintaining the moisture absorption and cleaning performance of the cotton rollers 92 and reducing the maintenance frequency.
[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A vehicle powertrain testing chamber with environmental simulation function, comprising a chamber body (1) and dynamometers (2) on both sides, characterized in that: It also includes an environmental simulation system, which includes a refrigerator (3), a humidifier (4) and a heater (5). The cabin (1) is equipped with a heat storage device (6) to reduce heat loss; The cabin (1) is equipped with a detection component (7) for detecting temperature and humidity data inside the cabin (1); The heat storage device (6) includes a first air box (61), a second air box (62), a heat storage pipe (63), a fan (64), an air duct (65), and a third air box (66) connected in sequence. The first air box (61) and the third air box (66) are both connected to the cabin (1). A spiral heat storage plate (631) is installed inside the heat storage pipe (63), and the spiral heat storage plate (631) is filled with paraffin wax.
2. The automotive powertrain testing chamber with environmental simulation function according to claim 1, characterized in that: The refrigeration unit (3) and the humidifier (4) are respectively provided with exhaust ports, and both exhaust ports are connected to the cabin (1). The heater (5) is installed inside the cabin (1).
3. The automotive powertrain testing chamber with environmental simulation function according to claim 2, characterized in that: The first wind box (61) and the second wind box (62) are both installed on the top of the cabin (1), the third wind box (66) is installed at the bottom of the cabin (1), the heat storage pipe (63) is distributed in a serpentine pattern, the cabin (1) is provided with an isolation chamber at the rear, and the heat storage pipe (63), the fan (64) and the air duct (65) are all located in the isolation chamber at the rear of the cabin (1).
4. The automotive powertrain testing chamber with environmental simulation function according to claim 3, characterized in that: The detection component (7) includes a main unit (78), a temperature probe (74) and a humidity probe (75). A hollow shaft (71) is rotatably connected inside the second air box (62). The bottom of the hollow shaft (71) extends downward through the top of the cabin (1). A turntable (73) is connected to the bottom of the hollow shaft (71). The temperature probe (74) and the humidity probe (75) are both mounted on the turntable (73). The main unit (78) is mounted on the top outer wall of the cabin (1). The main unit (78) is used to power the temperature probe (74) and the humidity probe (75) and to collect temperature and humidity data.
5. The automotive powertrain testing chamber with environmental simulation function according to claim 4, characterized in that: A rotating joint (76) is installed at the bottom of the turntable (73). A power-conducting rod (77) is connected between the rotating joint (76) and the main unit (78). The power-conducting rod (77) is provided with a first wire that is electrically connected to the main unit (78). The rotating joint (76) is provided with two second wires. The two second wires are electrically connected to the temperature probe (74) and the humidity probe (75) respectively. The rotating joint (76) is electrically connected to the first wire. The power-conducting rod (77) passes downward through the interior of the hollow shaft (71) and the center of the turntable (73), and is rotatably connected to the rotating joint (76).
6. The automotive powertrain testing chamber with environmental simulation function according to claim 5, characterized in that: An impeller (72) is connected to the outer wall of the hollow shaft (71). The impeller (72) is located inside the second air box (62). When the gas flows inside the second air box (62), it can drive the impeller (72) to rotate.
7. The automotive powertrain testing chamber with environmental simulation function according to claim 6, characterized in that: The cabin (1) is provided with a spoiler assembly (8). The spoiler assembly (8) includes two fixed rods (81). The two fixed rods (81) are respectively installed at two rear corners inside the cabin (1). Multiple spoilers (82) are hinged on the fixed rods (81). A first slide rod (83) is vertically slidably connected to the fixed rods (81). Multiple pairs of levers (84) are installed on the first slide rod (83). When the multiple pairs of levers (84) move, they contact the multiple spoilers (82) respectively. When the two levers (84) of the same pair move, they contact the top and bottom surfaces of the spoilers (82) respectively. The spoiler assembly (8) also includes a linkage mechanism for driving the two first slide rods (83) to move vertically back and forth.
8. The automotive powertrain testing chamber with environmental simulation function according to claim 7, characterized in that: The linkage mechanism includes two second slide rods (85), both of which are horizontally slidably connected to the inner wall of the bottom of the cabin (1). One end of the second slide rod (85) is hinged to a connecting rod (86), and the other end of the second slide rod (85) is connected to a sliding shaft (87). The ends of the two connecting rods (86) away from the second slide rods (85) are respectively hinged to two first slide rods (83). The turntable (73) is provided with a plum blossom groove (88), and both sliding shafts (87) are slidably connected to the plum blossom groove (88). When the plum blossom groove (88) rotates, it drives the second slide rod (85) to move back and forth through the sliding shaft (87).
9. The automotive powertrain testing chamber with environmental simulation function according to claim 6, characterized in that: The chamber (1) is equipped with a decondensation assembly (9), which includes two cotton rollers (92). A support (91) is installed on the top inner wall of the chamber (1). The two cotton rollers (92) are rotatably mounted on the support (91). The two cotton rollers (92) are in contact with each other, and the contact points of the two cotton rollers (92) are located on the movement trajectories of the temperature probe (74) and the humidity probe (75).
10. The automotive powertrain testing chamber with environmental simulation function according to claim 9, characterized in that: One of the cotton rollers (92) has a friction wheel (93) connected to its top end. The friction wheel (93) contacts the edge of the turntable (73). The bottom ends of the two cotton rollers (92) are respectively connected to gears (94), and the two gears (94) mesh.