A solar and rain simulation device for vehicle integration testing

Abstract

This invention discloses a sunlight and rainfall simulation device for vehicle integration testing, comprising a housing with a through hole on its first side. A first connecting post and a second connecting post, perpendicular to the first side of the housing, are fixedly connected to opposite ends of the through hole on the inner surface of the first side of the housing. The first and second connecting posts pass through opposite first and second ends of a mounting plate, respectively. A limit block is fixedly connected to the end of the first connecting post. A first spring is disposed on the first connecting post between the limit block and the mounting plate, and a second spring is disposed on the second connecting post between the mounting plate and the first side of the housing. A lamp is fixed on the side of the mounting plate facing the through hole, and a first switch is electrically connected to the lamp. A motor is fixed inside the housing, with its output shaft coaxially fixed to the rotation center of an eccentric wheel. The circumferential surface of the eccentric wheel abuts against the second end of the mounting plate on the side facing away from the through hole. A second switch is electrically connected to the motor. This device helps improve the testing efficiency of vehicle integration testing.

Description

Technical Field

[0001] This invention relates to the technical field of automotive testing equipment, and more specifically, to a sunlight and rainfall simulation device for integrated vehicle testing. Background Technology

[0002] During vehicle testing, some tests need to be conducted in different environments. Traditional testing methods utilize natural weather conditions to conduct tests under these conditions. However, this method is heavily reliant on the weather conditions at the test site, and there may be situations where the required environmental conditions for the test are not met for several days. For example, a test may require conditions of no sunshine and heavy rain, but if the test site experiences several consecutive days without rain, this leads to long testing cycles and low testing efficiency. Summary of the Invention

[0003] To address at least one aspect of the aforementioned problems, the present invention provides a solar and rain simulation device for integrated vehicle testing, comprising a housing, a mounting plate, a lamp plate, a first switch, a motor, an eccentric wheel, a second switch, a power supply unit, and a fixing component; the housing is a hollow box structure, with a through hole on its first side; at least one first connecting post and at least one second connecting post are disposed inside the housing, both perpendicular to the first side of the housing, with the first end of the first connecting post and the first end of the second connecting post respectively fixedly connected to opposite ends of the through hole on the inner surface of the first side of the housing; a limit block is fixedly connected to the second end of the first connecting post; the size of the mounting plate is larger than the size of the through hole; at least one first connecting hole and at least one second connecting hole are respectively provided at the opposite first and second ends of the mounting plate; the first connecting hole and the first connecting post correspond one-to-one, and the second connecting hole and the second connecting post correspond one-to-one, with the first connecting post and the second connecting post respectively passing through the first connecting hole and the second connecting hole; a first spring is sleeved on the first connecting post, the first end of the first spring abutting against the limit block, and the second end of the first spring... The two ends of the mounting plate abut against the first side facing the through hole; a second spring is sleeved on the second connecting post, the first end of the second spring is connected to the inner surface of the first side of the housing, and the second end of the second spring is connected to the second side of the mounting plate facing the through hole; the size of the lamp sheet is smaller than the size of the through hole, and the lamp sheet is fixedly laid on the second side of the mounting plate, corresponding to the through hole; the first switch is installed on the outer surface of the housing, and the first switch is electrically connected to the lamp sheet to control the switching of the lamp sheet; the motor is fixedly connected inside the housing, and the output shaft of the motor is coaxially fixed with the rotation center of the eccentric wheel. The connection is made so that the circumferential surface of the eccentric wheel abuts against the second end of the first side of the mounting plate; when the circumferential surface of the eccentric wheel is at its maximum distance from its rotation center abuts against the mounting plate, the lamp sheet extends completely out of the housing; when the circumferential surface of the eccentric wheel is at its minimum distance from its rotation center abuts against the mounting plate, the end of the lamp sheet near the eccentric wheel does not extend out of the housing; a second switch is installed on the outer surface of the housing and is electrically connected to the motor to control the switching of the motor; the power supply unit is electrically connected to both the lamp sheet and the motor; a fixing component is installed on the outer surface of the housing to fix the housing to the glass of the vehicle under test.

[0004] Preferably, a protective layer is fixedly laid on the side of the lamp sheet facing away from the mounting plate, and the protective layer is made of a soft transparent material.

[0005] Preferably, the protective layer is made of silicone grease.

[0006] Preferably, it also includes a PWM motor speed control module, which is fixedly installed inside the housing; the second switch is a rotary switch, the first input terminal of the PWM motor speed control module is electrically connected to the second switch, the second input terminal of the PWM motor speed control module is electrically connected to the power supply unit, and the output terminal of the PWM motor speed control module is electrically connected to the motor, for controlling the motor's switching and speed.

[0007] Preferably, the motor is a geared motor.

[0008] Preferably, the housing has a mounting hole, in which a cooling fan is fixedly installed, and the cooling fan is electrically connected to the power supply unit.

[0009] Preferably, the housing has several ventilation holes.

[0010] Preferably, the power supply unit includes an on-board inverter, a transformer, and a DC-DC voltage conversion module; the input terminal of the on-board inverter is electrically connected to the on-board power socket, and the output terminal of the on-board inverter is electrically connected to the input terminal of the transformer; the DC-DC voltage conversion module is fixedly installed in the housing, the input terminal of the DC-DC voltage conversion module is electrically connected to the output terminal of the transformer, and the first and second output terminals of the DC-DC voltage conversion module are electrically connected to the lamp and the motor, respectively.

[0011] Preferably, the fixing member is a suction cup, and at least one suction cup is provided, which is fixedly connected to the outer surface of the first side of the housing.

[0012] The solar and rainfall simulation device for vehicle integration testing according to the present invention has the following beneficial effects:

[0013] (1) The device of this application can be fixed to the sunlight and rain sensor on the outside of the windshield of the vehicle under test by means of a suction cup. The first switch is used to turn on the light to simulate sunlight and turn off the light to simulate no sunlight. The second switch is used to turn on the motor, which drives the eccentric wheel to rotate. When the eccentric wheel rotates to the point where the distance between its circumference and its rotation center is the largest and it abuts against the mounting plate, the light is fully extended out of the housing and in contact with the windshield. The eccentric wheel continues to rotate, and the distance between the circumference of the eccentric wheel and its rotation center at the point where it abuts against the mounting plate gradually decreases. Under the action of the second spring, the second end of the mounting plate gradually retracts into the housing. When the eccentric wheel rotates to the point where the distance between its circumference and its rotation center is the smallest and it abuts against the mounting plate, the end of the light near the eccentric wheel has no longer extended out of the housing and is no longer in contact with the windshield. Every time the eccentric wheel rotates once, the end of the light near the eccentric wheel will go through a process of no contact with the windshield, then contact, and then no contact again to simulate rain. The second switch is used to turn off the motor to simulate no rain. The device proposed in this application has a simple structure, low cost, and convenient operation. It has a good simulation effect of sunlight and rainfall, which helps to shorten the test cycle of vehicle integration testing and improve the test efficiency of vehicle integration testing.

[0014] (2) By designing the second switch as a rotary switch, the switching and speed of the motor can be controlled by the rotary switch and the PWM motor speed control module to simulate different rainfall amounts, which helps to expand the test range of the whole vehicle integration test and improve the accuracy of the whole vehicle integration test.

[0015] (3) Laying a protective layer on the light sheet helps to protect the light sheet and the windshield, extend the service life of the device of this application, and avoid scratching the windshield of the vehicle under test during the test.

[0016] (4) By designing the power supply unit as an on-board inverter, transformer and DC-DC voltage conversion module, a stable current can be directly obtained from the vehicle under test to power the electrical components in the device of this application.

[0017] (5) By installing a cooling fan and opening ventilation holes on the housing, the device of this application can dissipate heat during use and extend the service life of the device of this application. Attached Figure Description

[0018] To better understand the above and other objects, features, advantages, and functions of the present invention, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of the invention and do not limit the scope of the invention in any way; the parts in the drawings are not drawn to scale.

[0019] Figure 1 A schematic diagram of a solar and rainfall simulation device for vehicle integration testing according to an embodiment of the present invention is shown.

[0020] Figure 2 A schematic diagram of the first operation process of a solar and rainfall simulation device for vehicle integration testing according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram of the second operation process of a solar and rainfall simulation device for vehicle integration testing according to an embodiment of the present invention is shown.

[0022] Figure 4 An exploded view of the housing of a solar and rain simulation device for integrated vehicle testing according to an embodiment of the present invention is shown.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Housing; 11. Through hole; 12. Mounting hole; 13. Ventilation hole; 21. First connecting post; 211. Limiting block; 212. First spring; 22. Second connecting post; 221. Second spring; 3. Mounting piece; 4. Lamp piece; 41. Protective layer; 51. First switch; 52. Second switch; 61. Motor; 62. Eccentric wheel; 7. PWM motor speed control module; 81. Vehicle inverter; 82. Transformer; 83. DC-DC voltage conversion module; 9. Suction cup. Detailed Implementation

[0025] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0026] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0027] To at least partially address one or more of the aforementioned problems and other potential issues, embodiments of this disclosure propose a solar and rainfall simulation device for integrated vehicle testing, such as... Figures 1 to 4As shown, it includes a housing 1, a mounting plate 3, a lamp plate 4, a first switch 51, a drive assembly, a second switch 52, a power supply unit, and a fixing component.

[0028] Shell 1 is a hollow box structure; specifically, shell 1 is a split structure, such as... Figure 4 As shown, the housing 1 includes a mounting box and a cover plate. The mounting box is a box structure with an opening on one side. The shape and size of the cover plate match the shape and size of the opening of the mounting box. Multiple latches are fixedly connected to the inner side of the cover plate. The cover plate is connected to the opening of the mounting box through the multiple latches, so that the mounting box and the cover plate are combined to form a closed box. A through hole 11 is provided on the first side of the housing 1. The shape of the through hole 11 can be any one of rectangle, circle, or polygon. In this embodiment, the first side of the housing 1 is the bottom surface of the mounting box, and the shape of the through hole 11 is rectangular.

[0029] like Figure 2 and Figure 3 As shown, at least one first connecting post 21 and at least one second connecting post 22 are provided inside the housing 1. Both the first connecting post 21 and the second connecting post 22 are perpendicular to the first side surface of the housing 1. The first end of the first connecting post 21 and the first end of the second connecting post 22 are respectively fixedly connected to opposite ends of the through hole 11 on the inner surface of the first side surface of the housing 1. A limit block 211 is fixedly connected to the second end of the first connecting post 21. The size of the mounting plate 3 is larger than the size of the through hole 11. At least one first connecting hole and at least one second connecting hole are respectively provided at the opposite first and second ends of the mounting plate 3. The first connecting hole corresponds one-to-one with the first connecting post 21, and the second connecting hole corresponds one-to-one with the second connecting post 22. The first connecting post 21 and the second connecting post 22 are respectively inserted into the first connecting hole and the second connecting hole. In this embodiment, there are two first connecting posts 21 and two connecting posts 22. The first ends of the two first connecting posts 21 are respectively fixedly connected to the two apex corners of the first side surface of the housing 1 located at the first end of the through hole 11. The first ends of the two second connecting posts 22 are respectively fixedly connected to the two apex corners of the first side surface of the housing 1 located at the second end of the through hole 11. Two first connecting holes and two second connecting holes are respectively opened at the opposite first and second ends of the mounting plate 3. The two first connecting posts 21 and the two second connecting posts 22 are respectively inserted into the two first connecting holes and the two second connecting holes of the mounting plate 3.

[0030] A first spring 212 is sleeved on the first connecting post 21. The first end of the first spring 212 abuts against the limiting block 211, and the second end of the first spring 212 abuts against the first side of the mounting plate 3 facing away from the through hole 11. The first spring 212 is in a compressed state or a natural state. A second spring 221 is sleeved on the second connecting post 22. The first end of the second spring 221 is connected to the inner surface of the first side of the housing 1, and the second end of the second spring 221 is connected to the second side of the mounting plate 3 facing the through hole 11.

[0031] The light sheet 4 is preferably an LED light sheet, and the size of the light sheet 4 is smaller than the size of the through hole 11. The light sheet 4 is fixedly laid on the second side of the mounting plate 3, and the light sheet 4 corresponds to the through hole 11. The first switch 51 can be a push-button switch. The first switch 51 is installed on the outer surface of the housing 1 and is electrically connected to the light sheet 4 to control the switching of the light sheet 4. The lighting and extinguishing of the light sheet 4 simulates the presence and absence of sunlight. Preferably, a protective layer 41 is fixedly laid on the side of the light sheet 4 facing away from the mounting plate 3. The protective layer 41 is made of a soft transparent material. More preferably, the protective layer 41 is made of silicone grease.

[0032] The drive assembly is installed inside the housing 1 and connected to the mounting plate 3, and is used to drive the end of the lamp piece 4 near the second connecting post 22 to switch between the state of extending out of the housing 1 and the state of not extending out of the housing 1. The drive assembly includes a motor 61 and an eccentric wheel 62. The motor 61 is preferably a geared motor 61. The motor 61 is fixedly connected inside the housing 1. The output shaft of the motor 61 is coaxially fixedly connected to the rotation center of the eccentric wheel 62. The circumferential surface of the eccentric wheel 62 abuts against the second end of the first side of the mounting plate 3. When the circumferential surface of the eccentric wheel 62, at its maximum distance from its rotation center, abuts against the mounting plate 3, the lamp piece 4 extends completely out of the housing 1 to contact the windshield of the vehicle under test, and the second spring 221 is in a compressed state. When the circumferential surface of the eccentric wheel 62, at its minimum distance from its rotation center, abuts against the mounting plate 3, the end of the lamp piece 4 near the eccentric wheel 62 does not extend out of the housing 1 to separate from the windshield of the vehicle under test. The end of the lamp piece 4 near the eccentric wheel 62 is the end of the lamp piece 4 located at the second end of the mounting plate 3, and the second spring 221 is in a compressed state or a natural state. The rotation of the eccentric wheel 62 drives the lamp piece 4 to move from one end close to the eccentric wheel 62 to the other end of the glass, through a cycle of separation, contact, and separation, simulating rain.

[0033] The second switch 52 is mounted on the outer surface of the housing 1. The second switch 52 is electrically connected to the motor 61 and is used to control the switching of the motor 61; preferably, as shown in the figure. Figure 1As shown, the device of this application also includes a PWM motor 61 speed control module, which is fixedly installed in the housing 1; the second switch 52 is a rotary switch, the first input terminal of the PWM motor 61 speed control module is electrically connected to the second switch 52, the second input terminal of the PWM motor 61 speed control module is electrically connected to the power supply unit, and the output terminal of the PWM motor 61 speed control module is electrically connected to the motor 61, for controlling the switching and speed of the motor 61.

[0034] The power supply unit is electrically connected to both the lamp sheet 4 and the motor 61, and is used to supply power to the lamp sheet 4 and the motor 61; in the preferred embodiment, such as Figure 1 As shown, the power supply unit includes an on-board inverter 81, a transformer 82, and a DC-DC voltage conversion module 83. The input terminal of the on-board inverter 81 is electrically connected to the on-board power socket, and the output terminal of the on-board inverter 81 is electrically connected to the input terminal of the transformer 82. The DC-DC voltage conversion module 83 is fixedly installed in the housing 1. The input terminal of the DC-DC voltage conversion module 83 is electrically connected to the output terminal of the transformer 82. The first output terminal of the DC-DC voltage conversion module 83 is electrically connected to the lamp sheet 4. The second output terminal of the DC-DC voltage conversion module 83 is electrically connected to the motor 61. The third output terminal of the DC-DC voltage conversion module 83 is electrically connected to the second input terminal of the PWM motor 61 speed control module.

[0035] A fixing element is installed on the outer surface of the housing 1 to fix the housing 1 to the windshield of the vehicle under test. In one specific embodiment, the fixing element is a suction cup 9, and at least one suction cup 9 is provided. Preferably, multiple suction cups 9 are provided. The suction cups 9 are fixedly connected to the outer surface of the first side of the housing 1, and the housing 1 is fixed to the windshield of the vehicle under test by adhering to the windshield using the suction cups 9.

[0036] In a preferred embodiment, such as Figure 4 As shown, the housing 1 has a mounting hole 12, in which a cooling fan is fixedly installed. The cooling fan is electrically connected to the power supply unit. Specifically, the cooling fan is electrically connected to the fourth output terminal of the DC-DC voltage conversion module 83. Preferably, the housing 1 has a plurality of evenly distributed ventilation holes 13.

[0037] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand this document.

Claims

1. A solar and rainfall simulation device for integrated vehicle testing, characterized in that: The system includes a housing, mounting plate, lamp plate, first switch, drive assembly, second switch, power supply unit, and fixing components. The housing is a hollow box structure with a through hole on its first side. A first connecting post and a second connecting post are installed inside the housing, both perpendicular to the first side. The first ends of the first and second connecting posts are fixed to opposite ends of the through hole on the inner surface of the first side. A limit block is fixed to the second end of the first connecting post. The mounting plate is larger than the through hole. A first connecting hole and a second connecting hole are respectively provided at the opposite first and second ends of the mounting plate, and the first and second connecting posts pass through these holes. A first spring is fitted onto the connecting post, with its first end abutting against the limiting block and its second end abutting against the first side of the mounting plate facing away from the through hole; a second spring is fitted onto the second connecting post, with its first end connected to the inner surface of the first side of the housing and its second end connected to the second side of the mounting plate facing the through hole; the lamp sheet is smaller than the through hole size and is fixedly laid on the second side of the mounting plate, corresponding to the through hole; a first switch is electrically connected to the lamp sheet; a drive assembly is installed inside the housing and connected to the mounting plate, used to drive the end of the lamp sheet near the second connecting post to switch between a state extending out of the housing and a state not extending out of the housing; a second switch is electrically connected to the motor; a power supply unit is electrically connected to the lamp sheet and the drive assembly respectively; The fastener is used to secure the housing to the vehicle glass.

2. The solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: A protective layer is fixedly laid on the side of the lamp sheet facing away from the mounting plate. The protective layer is made of a soft, transparent material.

3. The solar and rainfall simulation device for integrated vehicle testing according to claim 2, characterized in that: The protective layer is made of silicone grease.

4. The solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: The drive assembly includes a motor and an eccentric wheel; the motor is fixedly connected inside the housing and electrically connected to a second switch; the output shaft of the motor is coaxially fixedly connected to the rotation center of the eccentric wheel, and the circumferential surface of the eccentric wheel abuts against the second end of the first side of the mounting plate; when the circumferential surface of the eccentric wheel is at its maximum distance from its rotation center abuts against the mounting plate, the lamp sheet extends completely out of the housing; when the circumferential surface of the eccentric wheel is at its minimum distance from its rotation center abuts against the mounting plate, the end of the lamp sheet near the eccentric wheel does not extend out of the housing.

5. A solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: It also includes a PWM motor speed control module, which is fixedly installed inside the housing; the second switch is a rotary switch; the first input terminal of the PWM motor speed control module is electrically connected to the second switch; the second input terminal of the PWM motor speed control module is electrically connected to the power supply unit; and the output terminal of the PWM motor speed control module is electrically connected to the motor, used to control the motor's switching and speed.

6. A solar and rainfall simulation device for integrated vehicle testing according to claim 5, characterized in that: The motor is a geared motor.

7. The solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: The housing has mounting holes, in which a cooling fan is fixedly installed. The cooling fan is electrically connected to the power supply unit.

8. The solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: The shell has several ventilation holes.

9. A solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: The power supply unit includes an on-board inverter, a transformer, and a DC-DC voltage conversion module; the input terminal of the on-board inverter is electrically connected to the on-board power socket, and the output terminal of the on-board inverter is electrically connected to the input terminal of the transformer. The DC-DC voltage conversion module is fixedly installed inside the housing. The input terminal of the DC-DC voltage conversion module is electrically connected to the output terminal of the transformer. The first and second output terminals of the DC-DC voltage conversion module are electrically connected to the lamp and the motor, respectively.

10. A solar and rainfall simulation device for integrated vehicle testing according to claim 1, characterized in that: The fixing component is a suction cup, and at least one suction cup is provided. The suction cup is fixedly connected to the outer surface of the first side of the housing.

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