Automobile rear diffuser

Abstract

The utility model relates to an automobile rear diffuser, and relates to the technical field of automobiles, the automobile rear diffuser comprises a baffle plate, the baffle plate is rotatably mounted on an automobile body, one side of the baffle plate is provided with an anti-clamping sleeve, and the anti-clamping sleeve slidably sleeves the baffle plate; an anti-pinch assembly is arranged between the baffle and the anti-pinch sleeve and used for detecting obstacles between the baffle and the vehicle body. The barrier between the baffle and the vehicle body is prevented from damaging the baffle, and the protection effect of the baffle is improved.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to an automobile rear diffuser. Background Art

[0002] When a car is traveling at high speed, the air will create greater resistance to the car. The high-speed air flowing on the irregular surface of the car and around it will interfere with the tires' grip and affect the car's handling stability.

[0003] At present, the function of the rear diffuser of a car is to open the rear diffuser when the vehicle reaches a predetermined value, speed up the airflow speed at the bottom of the car, reduce its pressure, create a larger pressure difference between the upper and lower surfaces, so that the car has more downforce and aerodynamic grip, improve the air flow around the car, reduce vehicle resistance, reduce the overall fuel consumption or power consumption of the car, and make the operation more stable.

[0004] The existing Chinese patent with publication number CN114906238A discloses an active variable diffuser at the rear of a car, including a drive motor, a transmission shaft and a variable mechanical structure baffle. The drive motor controls the variable mechanical structure baffle through the transmission shaft. The variable mechanical structure baffle is horizontally installed below the rear diffuser. The main control chip of the drive motor receives the vehicle speed, wheel angle, and steering wheel angle parameters from the vehicle's driving computer, and adjusts the variable mechanical structure baffle up and down according to the corresponding parameters.

[0005] In the above technical solution, the driving motor controls the variable mechanical structure baffle through the transmission shaft, and adjusts the angle of the variable mechanical structure baffle up and down according to the corresponding parameters. However, during the adjustment of the angle of the variable mechanical structure baffle, if there is an obstacle between the variable mechanical structure baffle and the car, the motor will increase the driving force of the variable mechanical structure baffle, thereby causing damage to the motor and the variable mechanical structure baffle.

[0006] Therefore, how to protect the motor and the baffle becomes a problem that needs to be solved urgently during the angle adjustment process of the baffle. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a rear diffuser for an automobile, which solves the technical problem that the baffle and the motor are easily damaged during the process of adjusting the angle of the baffle.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A rear diffuser for an automobile comprises a baffle, which is rotatably mounted on a vehicle body, an anti-pinch sleeve is arranged on one side of the baffle, and the anti-pinch sleeve is slidably sleeved on the baffle; an anti-pinch component is arranged between the baffle and the anti-pinch sleeve, and the anti-pinch component is used to detect obstacles between the baffle and the vehicle body.

[0010] Through the above technical solution, the baffle rotates on the vehicle body. As the baffle rotates, when there is an obstacle between the baffle and the vehicle body, the anti-pinch sleeve contacts the obstacle. At this time, the anti-pinch component detects the obstacle. After the anti-pinch component detects the obstacle, the baffle stops rotating, thereby preventing the obstacle between the baffle and the vehicle body from causing damage to the baffle, thereby enhancing the protective effect of the baffle.

[0011] Furthermore, the anti-pinch assembly includes a micro switch, a mounting groove is formed on the baffle, the micro switch is installed in the mounting groove, a contact terminal is formed on the micro switch, and the contact terminal faces one side of the anti-pinch sleeve.

[0012] Through the above technical solution, the anti-pinch sleeve contacts the contact terminal on the micro switch. When the anti-pinch sleeve and the contact terminal are released, the motor stops driving the baffle to rotate, thereby improving the protection effect of the motor.

[0013] Furthermore, the anti-pinch assembly includes a contact plate and a contact spring, the contact plate and the contact terminal are spaced apart, and one end of the contact spring is connected to the anti-pinch sleeve, and the other end is connected to the contact plate.

[0014] Through the above technical solution, when the anti-pinch sleeve contacts the vehicle body, the contact spring is compressed, and the contact plate is not released from the micro switch at this time. When the anti-pinch sleeve contacts the obstacle, the contact spring is compressed. As the contact spring is compressed, the contact plate contacts the contact terminal of the micro switch.

[0015] Furthermore, a limit block is arranged in the installation groove of the baffle plate, a limit spring is arranged between the limit block and the baffle plate, and the limit spring is pressed tightly between the limit block and the baffle plate.

[0016] Through the above technical solution, the limit block limits the contact plate under the action of the limit spring. Through the limiting effect of the limit block, the accidental contact of the anti-pinch sleeve is reduced, which triggers the anti-pinch function of the baffle.

[0017] Furthermore, a first guiding inclined surface and a second guiding inclined surface are formed on the limiting block, wherein the first guiding inclined surface faces a side close to the contact plate, and the second guiding inclined surface faces a side close to the micro switch.

[0018] Through the above technical solution, the first guiding bevel on the limit block guides the contact plate when it contacts the micro switch, and the second guiding bevel guides the contact plate when it separates from the micro switch.

[0019] Furthermore, a guide groove is provided on the baffle, and a guide block is provided on the anti-clamping sleeve. One end of the guide block is connected to the anti-clamping sleeve, and the other end is slidably matched with the guide groove.

[0020] Through the above technical solution, the guide block on the anti-pinch sleeve is slidably matched with the guide groove on the baffle plate, so that the stability of the anti-pinch sleeve sliding on the baffle plate is improved.

[0021] Furthermore, a connecting rod is arranged in the anti-pinch sleeve, and a plurality of connecting rods are arranged at intervals in the anti-pinch sleeve.

[0022] Through the above technical solution, the connecting rod improves the structural strength of the anti-pinch sleeve, so that the sensitivity of the anti-pinch sleeve to obstacle sensing is improved.

[0023] Furthermore, a rubber sleeve is provided on the anti-pinch sleeve, and the rubber sleeve is provided on a side of the anti-pinch sleeve away from the baffle.

[0024] Through the above technical solution, the rubber sleeve is arranged on the anti-pinch sleeve. When there is an obstacle between the baffle and the vehicle body, the rubber sleeve contacts the obstacle, thereby reducing the damage of the obstacle to the anti-pinch sleeve.

[0025] In summary, the present application includes at least one of the following beneficial technical effects of a rear diffuser for an automobile:

[0026] 1. During use, the baffle rotates on the vehicle body. As the baffle rotates, when there is an obstacle between the baffle and the vehicle body, the anti-pinch sleeve contacts the obstacle. At this time, the anti-pinch component detects the obstacle. After the anti-pinch component detects the obstacle, the baffle stops rotating, thereby preventing the obstacle between the baffle and the vehicle body from damaging the baffle and enhancing the protective effect of the baffle;

[0027] 2. Reduce the false touch of the anti-clamping sleeve by setting the contact plate and contact spring as well as the limit block and limit spring;

[0028] 3. The sliding cooperation between the guide block and the guide groove, as well as the setting of the connecting rod inside the anti-pinch sleeve, enable the anti-pinch sleeve to slide on the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This embodiment mainly embodies an overall schematic diagram of a rear diffuser of an automobile;

[0030] Figure 2 This is a schematic diagram of the explosion prevention jacket structure mainly embodied in this embodiment;

[0031] Figure 3 It is a cross-sectional view of the anti-clamping jacket structure mainly embodied in this embodiment.

[0032] Figure numerals: 1. baffle; 11. guide groove; 12. mounting groove; 2. anti-pinch sleeve; 21. guide block; 22. rubber sleeve; 23. connecting rod; 3. anti-pinch assembly; 31. micro switch; 311. contact terminal; 32. contact plate; 321. contact spring; 33. limit block; 331. limit spring; 332. first guide ramp; 333. second guide ramp. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The embodiment of the present application discloses a rear diffuser for an automobile.

[0036] Reference Figure 1-Figure 2 A rear diffuser of an automobile comprises a baffle 1, which is rotatably mounted on the rear of a vehicle body. An anti-pinch sleeve 2 is arranged on the baffle 1, and an anti-pinch component 3 is arranged between the anti-pinch sleeve 2 and the baffle 1. The anti-pinch component 3 detects obstacles between the anti-pinch sleeve 2 and the vehicle body. When the anti-pinch component 3 detects an obstacle during the rotation of the baffle 1, the baffle 1 stops rotating.

[0037] The baffle 1 has an arc-shaped cross section, one end of the baffle 1 in the arc direction is rotatably connected to the vehicle body, and the anti-pinch sleeve 2 is sleeved on the other end of the baffle 1 in the arc direction. Both ends of the baffle 1 in the length direction are provided with guide grooves 11, and the anti-pinch sleeve 2 is provided with a guide block 21, one end of the guide block 21 is connected to the anti-pinch sleeve 2, and the other end is slidably matched with the guide groove 11. When in use, the anti-pinch sleeve 2 is slidably matched with the baffle 1 through the guide block 21.

[0038] Furthermore, during the use of the baffle 1, the rear end of the baffle 1 will contact the vehicle body. In order to reduce the collision between the anti-pinch sleeve 2 and the vehicle body, a rubber sleeve 22 is provided on the anti-pinch sleeve 2. The rubber sleeve 22 is sleeved on the anti-pinch sleeve 2. On the one hand, the rubber sleeve 22 can reduce the contact between the anti-pinch sleeve 2 and the vehicle body, and the rubber sleeve 22 can simultaneously protect the vehicle body and the anti-pinch sleeve 2 from damage. In addition, due to the provision of the rubber sleeve 22, even if a finger is pinched, the rubber sleeve 22 can protect the finger because it is in contact with the finger.

[0039] Reference Figure 3The baffle plate 1 is provided with a mounting groove 12 on one side close to the anti-pinch sleeve 2, and two mounting grooves 12 are provided on the baffle plate 1 at intervals. The anti-pinch assembly 3 includes a micro switch 31, and the micro switch 31 is installed in the mounting groove 12 of the baffle plate 1. A contact terminal 311 is formed on the micro switch 31, and the contact terminal 311 faces the side close to the anti-pinch sleeve 2.

[0040] The micro switch 31 is electrically connected to the motor that drives the baffle 1 to rotate. In the prior art, the working principle of the micro switch 31 is mainly to generate an electrical pulse signal through the mechanical movement between the contacts. When the external force pushes the slider of the switch, the slider drives the slide to move to one side, and the contacts are opened or closed. In this process, the current will pass through the reed, contacts, resistors and other components to generate tiny electric sparks, thereby triggering the switch to send a signal.

[0041] When the anti-pinch sleeve 2 contacts the contact terminal 311 on the micro switch 31 , the micro switch 31 turns off the motor to prevent the motor from continuing to drive the baffle 1 to rotate, so that the baffle 1 can play an anti-pinch function.

[0042] In order to make the anti-clip sleeve 2 better contact with the contact terminal 311 of the micro switch 31, a contact plate 32 is provided in the mounting groove 12 of the baffle 1. The contact plate 32 corresponds to the mounting groove 12. The contact plate 32 is in the shape of a circular plate as a whole, and the contact plate 32 slides in the corresponding mounting groove 12. Further, a contact spring 321 is provided on the anti-clip sleeve 2. The contact spring 321 corresponds to the contact plate 32. One end of the two contact springs 321 is connected to the corresponding contact plate 32, and the other end is connected to the anti-clip sleeve 2. When the anti-clip sleeve 2 contacts an obstacle, the anti-clip sleeve 2 slides on the baffle 1. As the anti-clip sleeve 2 slides, the contact plate 32 contacts the contact terminal 311 of the micro switch 31. At this time, the contact spring 321 is compressed. As the contact spring 321 is compressed, the damage to the contact terminal 311 of the micro switch 31 caused by the anti-clip sleeve 2 contacting the micro switch 31 is reduced. If the obstacle is a finger, the compression of the limit spring 331 can also protect the finger.

[0043] During the rotation of the rotating plate, in order to prevent the contact plate 32 on the anti-clamping sleeve 2 from accidentally touching the micro switch 31, a limit block 33 is provided in the mounting groove 12 of the baffle 1. Two limit blocks 33 are relatively provided in the corresponding mounting groove 12. A limit spring 331 is provided between the two limit blocks 33 and the baffle 1. One end of the limit spring 331 is connected to the limit block 33, and the other end is connected to the baffle 1. When in use, the limit block 33 limits the contact plate 32. When the anti-clamping sleeve 2 contacts the obstacle, the contact plate 32 presses against the limit block 33. When the obstacle has enough pressure on the anti-clamping sleeve 2, the contact plate 32 pushes the two opposite limit blocks 33 to the side away from each other, so that the contact plate 32 can contact the contact terminal 311 of the micro switch 31.

[0044] Furthermore, a first guiding bevel 332 and a second guiding bevel 333 are formed on the limit block 33, wherein the first guiding bevel 332 faces the side close to the contact plate 32, and the second guiding bevel 333 faces the side close to the micro switch 31. When the anti-clamping sleeve 2 contacts an obstacle, the first guiding bevel 332 on the limit block 33 guides the contact plate 32, and after the contact plate 32 contacts the contact terminal 311 of the micro switch 31, if the anti-clamping sleeve 2 needs to be reset, the anti-clamping sleeve 2 is manually pulled to the side away from the baffle 1, and at this time, the second guiding bevel 333 on the limit block 33 guides the contact plate 32.

[0045] A connecting rod 23 is provided in the anti-pinch sleeve 2. A plurality of connecting rods 23 are provided in the anti-pinch sleeve 2 at intervals, and the connecting rod 23 is integrally formed with the anti-pinch sleeve 2. When an obstacle is located on one side of the length direction of the anti-pinch sleeve 2, the connecting rod 23 can enhance the structural strength of the anti-pinch sleeve 2, so that the anti-pinch sleeve 2 as a whole can slide horizontally on the baffle 1. When in use, if the anti-pinch sleeve 2 on one side is offset, when the contact plate 32 on one side of the anti-pinch sleeve 2 contacts the micro switch 31, the micro switch 31 controls the motor to stop working.

[0046] The implementation principle of a rear diffuser of an automobile in an embodiment of the present application is as follows: during use, the motor drives the baffle 1 to rotate. During the rotation of the baffle 1, the anti-pinch sleeve 2 contacts the obstacle. At this time, the anti-pinch sleeve 2 slides on the baffle 1, and the contact plate 32 on the anti-pinch sleeve 2 is pressed against the first guide slope 332 of the limit block 33. As the baffle 1 further rotates, the first guide slope 332 guides the contact plate 32, and the contact plate 32 contacts the contact terminal 311 of the micro switch 31. The micro switch 31 controls the motor to stop working. When the anti-pinch sleeve 2 needs to be reset, the anti-pinch sleeve 2 is moved to the side away from the baffle 1. At this time, the second guide slope 333 on the limit block 33 guides the contact plate 32.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rear diffuser for an automobile, comprising a baffle (1), wherein the baffle (1) is rotatably mounted on a vehicle body, and characterized in that: An anti-clamping sleeve (2) is provided on one side of the baffle (1), and the anti-clamping sleeve (2) is slidably sleeved on the baffle (1); An anti-pinch component (3) is provided between the baffle plate (1) and the anti-pinch sleeve (2), and the anti-pinch component (3) is used to detect obstacles between the baffle plate (1) and the vehicle body.

2. The rear diffuser of an automobile according to claim 1, characterized in that: The anti-pinch assembly (3) comprises a micro switch (31), the baffle (1) is provided with a mounting groove (12), the micro switch (31) is installed in the mounting groove (12), and a contact terminal (311) is formed on the micro switch (31), and the contact terminal (311) faces one side of the anti-pinch sleeve (2).

3. The rear diffuser of an automobile according to claim 2, characterized in that: The anti-pinch assembly (3) comprises a contact plate (32) and a contact spring (321); the contact plate (32) and the contact terminal (311) are arranged at a distance, and one end of the contact spring (321) is connected to the anti-pinch sleeve (2), and the other end is connected to the contact plate (32).

4. The rear diffuser of an automobile according to claim 3, characterized in that: A limit block (33) is arranged in the mounting groove (12) of the baffle (1), a limit spring (331) is arranged between the limit block (33) and the baffle (1), and the limit spring (331) is pressed tightly between the limit block (33) and the baffle (1).

5. The rear diffuser of an automobile according to claim 4, characterized in that: A first guiding inclined surface (332) and a second guiding inclined surface (333) are formed on the limit block (33); the first guiding inclined surface (332) faces a side close to the contact plate (32), and the second guiding inclined surface (333) faces a side close to the micro switch (31).

6. The automobile rear diffuser according to claim 1, characterized in that: The baffle (1) is provided with a guide groove (11), the anti-clamping sleeve (2) is provided with a guide block (21), one end of the guide block (21) is connected to the anti-clamping sleeve (2), and the other end is slidably matched with the guide groove (11).

7. The automobile rear diffuser according to claim 1, characterized in that: A connecting rod (23) is arranged in the anti-clamping sleeve (2), and a plurality of connecting rods (23) are arranged at intervals in the anti-clamping sleeve (2).

8. The automobile rear diffuser according to claim 1, characterized in that: The anti-clamping sleeve (2) is provided with a rubber sleeve (22), and the rubber sleeve (22) is sleeved on a side of the anti-clamping sleeve (2) facing away from the baffle (1).

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