CN113276649B - Intelligent sun-shading light-blocking system for vehicle - Google Patents

Abstract

The invention discloses an intelligent sun-shading and light-shielding system for vehicles, which includes a sun-shading device, a detection module and a control module. Both the sun-shading device and the detection module are electrically connected to the control module. The cloth reel on the car, and the rope reel driven by the driving device, the sunshade fabric is wound on the cloth reel, and the nylon pull rope connected with the sunshade cloth is wound on the rope reel When in use, it can detect the internal temperature of the car in real time, and further automatically control the sunshade device according to the internal temperature of the car. In addition, the sunshade fabric can fit the windshield of the car to expand, which can not only improve its overall aesthetics, but also effectively improve its sunshade effect.

Description

An intelligent sun-shading and light-shielding system for vehicles

technical field

The invention relates to an intelligent sun-shading and light-shielding system for vehicles, which belongs to the technical field of auto parts.

Background technique

At present, the sunshade devices used in automobiles can be divided into two types: external and built-in. The external ones usually need to be taken out from the car and covered on the surface of the car. They are greatly affected by external conditions, and it is very inconvenient to manually retract them.

At present, most of the built-in devices are suction cups and electrostatic stickers, which need to be manually pasted and disassembled, and the operation is also very troublesome. At the same time, they cannot effectively fit the car windshield, which leads to the current built-in sunshade device, which has a limited sunshade effect. , and when used, it will also affect its overall aesthetics.

The information disclosed in this Background section is only for enhancement of understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those of ordinary skill in the art.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide an intelligent sunshade and light shielding system for vehicles to solve the technical problems in the prior art.

In order to solve the problems of the technologies described above, the present invention is achieved by adopting the following technical solutions:

An intelligent sunshade and light-shielding system for vehicles, comprising a sunshade device, a detection module and a control module, the sunshade device and the detection module are electrically connected to the control module;

The sunshade device includes a cloth-releasing reel connected to the car through torsion spring rotation, and a rope-releasing reel driven by a driving device. Sunshade fabric is wound on the cloth-releasing reel, and the reel is wound on the rope-releasing reel. Wrapped with a nylon drawstring connected to the sunshade fabric;

Detection module, including multiple temperature sensors for detecting the temperature inside the car;

The control module includes a wireless communication unit, and a single-chip microcomputer electrically connected to the driving device, the temperature sensor is electrically connected to the wireless communication unit, and the temperature sensor is connected to the single-chip microcomputer signal through the wireless communication unit, and the single-chip microcomputer is connected according to the temperature The sensor detection data controls the driving device to make the sunshade fabric (3) unfold or roll up.

As a preferred technical solution of the present invention, the control of the sunshade fabric includes: setting the opening temperature threshold T _A of the sunshade fabric, setting the winding temperature threshold T _B of the sunshade fabric, obtaining the temperature T _i detected by the temperature sensor, When T _i >T _A , the single-chip microcomputer controls the driving device to unroll the sunshade fabric; when T _i <T _B , the single-chip microcomputer controls the driving device to roll the sunshade fabric; when T _B <T _i <T _A , the driving device does not act.

As a preferred technical solution of the present invention, there are at least six temperature sensors, and the six temperature sensors are evenly distributed inside the vehicle.

As a preferred technical solution of the present invention, the single-chip microcomputer judges that the temperature at which the driving device operates is an average value of the temperatures detected by the six temperature sensors.

As a preferred technical solution of the present invention, the rope-releasing reel is provided with a rope groove, and the rope-releasing reel winds the nylon pull rope through the rope groove.

As a preferred technical solution of the present invention, the sunshade device also includes an arc-shaped shield slide rail attached to the front windshield of the automobile, and a guide rail for guiding the nylon pull cord is arranged in the shield slide rail. The roller conduction group of the nylon pull rope is connected with the side of the sunshade fabric, and the single-chip microcomputer controls the driving part to move according to the data detected by the temperature sensor, so that the nylon pull rope is wound on the rope reel to drive The sunshade fabric is unfolded or rolled up along the cover slide rail.

As a preferred technical solution of the present invention, the roller conduction group includes a fixed pulley for changing the conduction direction of the nylon stay rope, and a guide roller for controlling the movement track of the nylon stay rope. The rail is far away from one end of the cloth releasing reel. There are multiple guide rollers, and the guide rollers are evenly distributed in the guard slide rail. Movement along the specified trajectory.

As a preferred technical solution of the present invention, a pair of tensioning pulleys clamping the nylon pull rope are rotatably connected to one end of the shield slide rail located at the cloth releasing reel, and one of the tensioning pulleys is provided with an electric pusher. Driven by a rod, and used to control the friction plate of the tension wheel rotation;

A pressure sensor is also arranged in the slide rail of the shield, and a shrapnel for resisting the nylon pull rope is arranged on the pressure sensor. The single-chip microcomputer judges the tension degree of the nylon pull rope according to the pressure sensor data, and passes through according to the tension degree. The tension wheel cooperates with the rope reel to compensate and adjust the movement track of the nylon stay rope.

As a preferred technical solution of the present invention, the pressure sensor is arranged at the middle position of the slide rail of the shield.

As a preferred technical solution of the present invention, the compensation for the tension degree of the nylon pull rope includes setting the adjustment initial threshold N ₁ and the adjustment stop threshold N ₂ , and obtaining the pressure data N ₃ detected by the pressure sensor. When N ₃ < N ₁ , the electric push rod drives the friction plate to control the movement of the tensioning wheel, when N ₃ > N ₂ , the electric push rod stops driving the friction plate to control the movement of the tensioning wheel.

Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

When the present invention is in use, it can detect the internal temperature of the automobile in real time, and further automatically control the sunshade device according to the internal temperature of the automobile, which can effectively avoid the changeable weather in summer, which will cause the sunshade device to fail to open in time when the automobile is parked, causing damage to the interior of the automobile. The temperature rises sharply. In addition, the sunshade fabric can be stretched to fit the windshield of the car, which can not only improve its overall aesthetics, but also effectively improve its sunshade effect.

Description of drawings

Fig. 1 is a schematic diagram of the present invention;

Fig. 2 is the structural representation of sunshade device among the present invention;

Fig. 3 is the side view of the structure of sunshade device among the present invention;

Fig. 4 is the structural representation of unwinding reel among the present invention;

Fig. 5 is a schematic diagram of the installation structure of the friction plate in the present invention;

Fig. 6 is a structural schematic diagram of the tensioning wheel in the present invention.

In the figure: 1-cloth release reel; 2-rope release reel; 3-shade fabric; 4-nylon drawstring; 5-shield slide rail; 6-roller conduction group; 7-fixed pulley; - tensioning wheel; 10 - friction plate; 11 - pressure sensor; 12 - shrapnel; 13 - rope groove.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

As shown in Figures 1 to 6, an intelligent sunshade and light shielding system for vehicles includes a sunshade device, a detection module and a control module, and the sunshade device and the detection module are electrically connected to the control module;

The sunshade device includes a cloth-releasing reel 1 connected to the car through torsion spring rotation, and a rope-releasing reel 2 driven by a driving device. A sunshade fabric 3 is wound on the cloth-releasing reel 1 and wound on the rope-releasing reel 2 There is a nylon stay rope 4 connected with the sunshade cloth 3;

Detection module, including multiple temperature sensors for detecting the temperature inside the car;

The control module includes a wireless communication unit and a single-chip microcomputer electrically connected to the driving device, the temperature sensor is electrically connected to the wireless communication unit, and the temperature sensor is connected to the single-chip microcomputer signal through the wireless communication unit, and is controlled by the single-chip microcomputer according to the temperature sensor detection data The driving device makes the sunshade cloth 3 unfold or roll up.

The control of the sunshade fabric 3 includes: setting the opening temperature threshold T _A of the sunshade fabric 3, setting the winding temperature threshold T _B of the sunshade fabric 3, obtaining the detection temperature T _i of the temperature sensor, and when T _i > T _A , the single-chip microcomputer control The driving device unrolls the sunshade fabric 3, and when T _i <T _B , the single-chip microcomputer controls the driving device to roll up the sunshade fabric 3, and when T _B <T _i <T _A , the driving device does not act.

The driving device is preferably a motor, and the control module also includes a relay, the relay is wired with the motor through the first input line IN1 and the second input line IN2, and the first input line IN1 corresponds to the forward rotation of the motor and the opening of the sunshade device; the second input The line IN2 corresponds to the reverse rotation of the motor and the closing of the sunshade device, and the wireless communication unit preferably transmits data through the ZigBee wireless network to ensure normal communication between the components.

There are at least six temperature sensors, and the six temperature sensors are evenly distributed inside the car, and the single-chip microcomputer determines that the temperature at which the driving device operates is the average value of the temperatures detected by the six temperature sensors.

The positions where the six temperature sensors are set are preferably on both sides of the front windshield of the car, on both sides of the rear windshield at the rear of the car, and on both sides of the middle position of the car, that is, by comprehensively detecting the temperature inside the car to achieve sunshade protection. More precise control of the device.

The time interval for the temperature sensor to detect the internal temperature of the car for the MCU to judge whether the driving device is operating is between 1-10 minutes, wherein the working interval of the temperature sensor is preferably 5 minutes, and the specific working interval can be determined according to the actual usage. Adjust accordingly.

It should be noted that each temperature sensor and each wireless communication unit is a group of detection units, and each group of detection units is powered by an independent battery. Any position within the detection temperature.

The wireless communication unit is preferably a CC2530 node module, which can realize low power consumption and low-cost data collection and transmission functions at the wireless transmission end.

The sunshade device also includes a shield slide rail 5 that fits the arc structure of the front windshield of the automobile, and a roller conduction group 6 for guiding the nylon stay cord 4 is arranged in the shield slide rail 5, and the nylon stay cord 4 and the The sides of the sunshade fabric 3 are connected, and the single-chip microcomputer controls the driving parts to move according to the data detected by the temperature sensor, so that the nylon pull rope 4 is wound on the rope reel 2 to drive the sunshade fabric 3 along the shield slide rail 5. Unfold or rewind.

It should be noted that the rope reel 2 is preferably a hollow structure, and the driving part is also preferably a drive motor. The drive motor is placed in the rope reel 2, and the rotating shaft of the drive motor is fixedly connected with the rope reel 3. The unwinding rope reel 2 is used to be fixed on the main body of the car to ensure that it does not take up extra space, thereby causing the problem that the device is difficult to install on the car.

The rope-releasing reel 2 is provided with a rope groove 13. The said rope-releasing reel 2 winds the nylon stay rope 4 through the rope groove 13. In the groove 13, the rope groove 13 can limit the nylon stay cord 4 to prevent the nylon stay cord 7 from easily running around on the rope reel 2, further causing the problem that it will affect the normal winding of the sunshade cloth 3.

As shown in Figures 2 to 6, the roller conducting group 6 includes a fixed pulley 7 for changing the conduction direction of the nylon stay rope 4, and a guide roller 8 for controlling the movement track of the nylon stay rope 4, and the fixed pulley 7 is arranged on the shield The slide rail 5 is far away from one end of the cloth releasing reel 1, and a plurality of guide rollers 8 are arranged, and a plurality of guide rollers 8 are evenly distributed in the shield slide rail 5, and the nylon stay rope 4 is conducted through the guide rollers 8, so that the sunshade cloth 3 Move along the specified trajectory in the shield slide rail 5.

The cloth releasing reel 1 is rotatably connected to the car through at least two torsion springs, and the two torsion springs are respectively located at both ends of the cloth releasing reel 1. The two torsion springs can provide a more stable contraction force for the cloth releasing reel 1, that is, in When the sunshade fabric 3 is unfolded, the driving device drives the rope release reel 2 to rotate, so that the nylon stay rope 7 can be wound, so that the nylon stay rope 7 drives the sunshade fabric 4 to unfold. When the cloth release reel 1 is rotated, it is necessary to overcome the torsion spring 1, and then store energy through the torsion spring. When the sunshade fabric 3 is rolled up, the driving part drives the rope release reel 2 to be reversed, and the torsion spring can make the cloth release reel 1 wind the sunshade fabric 3 step by step. Winding of sunshade cloth 3.

One end of the cover slide rail 5 located at the cloth releasing reel 1 is rotatably connected to a pair of tensioning wheels 9 that hold the nylon stay rope 4, one of which is driven by an electric push rod and is used to control the tension. The friction plate 10 that the wheel 9 rotates;

A pressure sensor 11 is also arranged in the guard slide rail 5, and the pressure sensor 11 is provided with a shrapnel for resisting the nylon stay rope 4, and the single-chip microcomputer judges the tension degree of the nylon stay rope 4 according to the pressure sensor 11 data, and according to the tension By the cooperation of the tensioning wheel 9 and the rope reel 2, the motion track of the nylon stay rope 4 is compensated and adjusted.

The pressure sensor 11 is arranged at the middle position of the shield slide rail 5 .

The specific setting position of the pressure sensor 11 can be adjusted according to the actual situation. It is mainly because the torsion spring is easy to age during long-term use, so that the nylon stay cord 4 cannot be stretched straight, and the sunshade cloth is further driven by the nylon stay cord 4. 3 when unfolding, it just can't effectively overcome the gravity of sunshade cloth 3 self, and causes the problem that sunshade cloth 3 is close to automobile windshield.

When in use, the nylon drawstring 4 will resist the shrapnel 12, and the deformation of the shrapnel will apply force to the pressure difference sensor 11. When the nylon drawstring 4 is loose, the force against the shrapnel 12 will become smaller, and then the pressure can be passed. The change of the data detected by the sensor 11 completes the detection of the state of the nylon stay cord 4 .

When the tensioning wheel 9 is in use, it is mainly by controlling the rotation of the tensioning wheel 9 to realize the takeover of the cloth releasing reel 1, and then cooperate with the driving parts to effectively adjust the position of the nylon stay rope 4 in the guard slide rail 5 .

It should be noted that when the sunshade fabric 3 is being rolled up, the electric push rod will not drive the friction plate 10 to move, so as to prevent the tension wheel 9 from affecting the normal winding of the sunshade fabric 3 .

The compensation for the tension degree of the nylon pull rope 4 includes setting the initial threshold N ₁ and the stop threshold N ₂ , and obtaining the pressure data N ₃ detected by the pressure sensor 11. When N ₃ < N ₁ , the electric push rod drives the friction plate 10 controls the movement of the tensioning wheel 9, and when N ₃ > N ₂ , the electric push rod stops driving the friction plate 10 to control the movement of the tensioning wheel 9 .

Its control of the tension force of the nylon pull rope 4 can be controlled by a single-chip microcomputer, or an independent controller can be set up to control it, which can effectively ensure that the sunshade fabric 3 can always be close to the windshield of the car.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (8)

1. An intelligent sun-shading and light-blocking system for a vehicle is characterized by comprising a sun-shading device, a detection module and a control module, wherein the sun-shading device and the detection module are electrically connected with the control module;

the sun-shading device comprises a cloth unwinding reel (1) rotationally connected to an automobile through a torsion spring and a rope unwinding reel (2) driven by a driving device, wherein sun-shading cloth (3) is wound on the cloth unwinding reel (1), and a nylon pull rope (4) connected with the sun-shading cloth (3) is wound on the rope unwinding reel (2);

the detection module comprises a plurality of temperature sensors for detecting the temperature in the automobile;

the control module comprises a wireless communication unit and a single chip microcomputer electrically connected with the driving device, the temperature sensor is electrically connected with the wireless communication unit and is in signal connection with the single chip microcomputer through the wireless communication unit, and the single chip microcomputer controls the driving device to unfold or wind the sunshade cloth (3) according to the detection data of the temperature sensor;

the sun shading device further comprises a shield slide rail (5) which is attached to an arc structure of a front windshield of an automobile, wherein a roller transmission set (6) used for guiding the nylon pull rope (4) is arranged in the shield slide rail (5), the roller transmission set (6) comprises a fixed pulley (7) used for changing the transmission direction of the nylon pull rope (4) and guide rollers (8) used for controlling the motion track of the nylon pull rope (4), the fixed pulley (7) is arranged at one end, away from the cloth placing scroll (1), of the shield slide rail (5), the guide rollers (8) are provided with a plurality of guide rollers (8), the guide rollers (8) are uniformly distributed in the shield slide rail (5), and the nylon pull rope (4) is transmitted through the guide rollers (8) so that sun shading cloth (3) moves along a specified track in the shield slide rail (5);

one end of the shield slide rail (5) positioned on the cloth releasing scroll (1) is rotatably connected with a pair of tension pulleys (9) for clamping the nylon pull rope (4), wherein one tension pulley (9) is provided with a friction plate (10) which is driven by an electric push rod and is used for controlling the rotation of the tension pulley (9);

the nylon pull rope tensioning device is characterized in that a pressure sensor (11) is further arranged in the shield sliding rail (5), an elastic sheet (12) used for abutting against the nylon pull rope (4) is arranged on the pressure sensor (11), the single chip microcomputer judges the tensioning degree of the nylon pull rope (4) according to data of the pressure sensor (11), and the movement track of the nylon pull rope (4) is compensated and adjusted through the matching of a tensioning wheel (9) and a rope releasing reel (2) according to the tensioning degree.

2. An intelligent sun-shading light-blocking system for vehicle according to claim 1, wherein the control of the sun-shading cloth (3) comprises: setting a starting temperature threshold TA of the sunshade cloth (3), setting a rolling temperature threshold TB of the sunshade cloth (3), obtaining a temperature Ti detected by a temperature sensor, when Ti is greater than TA, controlling a driving device to enable the sunshade cloth (3) to be unfolded by a singlechip, when Ti is less than TB, controlling the driving device to enable the sunshade cloth (3) to be rolled by the singlechip, and when TB is less than Ti is less than TA, not operating the driving device.

3. The intelligent sun-shading and light-blocking system for the vehicle as claimed in claim 2, wherein the number of the temperature sensors is at least six, and the six temperature sensors are uniformly distributed in the vehicle.

4. The intelligent sun-shading and light-blocking system for the vehicle as claimed in claim 3, wherein the temperature at which the single chip microcomputer judges the driving device to operate is an average value of the temperatures detected by the six temperature sensors.

5. The intelligent sun-shading light-blocking system for the vehicle as claimed in claim 1, wherein a rope slot (13) is arranged on the rope releasing reel (2), and the rope releasing reel (2) winds the nylon pulling rope (4) through the rope slot (13).

6. The vehicular intelligent sun-shading and light-blocking system according to claim 1, wherein the nylon pulling rope (4) is connected with the side edge of the sun-shading cloth (3), and the single chip microcomputer controls the driving part to move according to data detected by the temperature sensor, so that the nylon pulling rope (4) is wound on the rope unwinding reel (2) to drive the sun-shading cloth (3) to be unwound or wound along the shield sliding rail (5).

7. The intelligent sun-shading light-blocking system for vehicle according to claim 1, wherein the pressure sensor (11) is arranged at the middle position of the shield slide rail (5).

8. The intelligent sun-shading and light-blocking system for the vehicle as claimed in claim 7, wherein the compensation of the tension degree of the nylon pulling rope (4) comprises setting an adjustment initial threshold N1 and an adjustment stop threshold N2, acquiring pressure data N3 detected by the pressure sensor (11), when N3< N1, the electric push rod drives the friction plate (10) to control the movement of the tension wheel (9), and when N3> N2, the electric push rod stops driving the friction plate (10) to control the movement of the tension wheel (9).

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