System for controlling function of photochromic glass

Abstract

The utility model belongs to the technical field of car window control, and particularly discloses a system for controlling the function of photochromic glass, which is characterized in that a photochromic glass control unit of a car door is arranged in the car door, and the photochromic glass control unit is electrically connected with all areas of the photochromic glass one by one; the vehicle door control system is electrically connected with the photochromic glass control unit through a first wire harness, the first wire harness comprises a signal wire, a power source negative electrode wire and a power source positive electrode wire, and the power source negative electrode wire and the power source positive electrode wire supply power to the photochromic glass control unit. The photochromic glass control unit receives a communication control instruction of a vehicle door control system through a signal wire, and the power-on or power-off state of each area of the photochromic glass is changed through the communication control instruction. The vehicle door space occupied by the first wire harness is reduced, the first wire harness is easy to assemble, interference with peripheral parts is avoided, and abnormal sound generated when the first wire harness ascends and descends along with vehicle window glass is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle window control technology, specifically relating to a system for controlling the function of tinted glass. Background Technology

[0002] With the development of the automotive industry, cars are becoming increasingly technologically advanced, and multifunctional technologies for car windows are experiencing unprecedented development opportunities. These technologies, such as tinted windows, heating, and video playback, not only enhance driving comfort but also greatly enrich the entertainment and practical functions within the vehicle.

[0003] Photochromic glass is divided into N zones, each changing color under specific conditions such as light, temperature, electric field or current, and surface pressure. The color changes accordingly with the changing conditions, and the glass reversibly returns to its initial state when the applied conditions disappear. By altering its transmittance characteristics in response to changes in the external environment, the glass can effectively control solar radiation energy, thereby achieving energy conservation. Glasses are mainly classified according to their color-changing mechanisms into photochromic glass, thermochromic glass, electrochromic glass, and mechanochromic glass. Among these, electrochromic glass has attracted particular attention due to its simplicity in control and operation.

[0004] The working principle of electrochromic glass: The photochromic film of the entire glass is divided into N regions, and each region is equipped with an independent power supply line. Therefore, (N+1) wires are needed. One wire is the ground wire, and the other wires are the power supply lines for the N photochromic regions. By precisely controlling the power supply to or off of these regions through the car door control system, the different colors of the entire glass can be achieved.

[0005] In existing technologies, such as Figure 6 and Figure 7 As shown, these wires are integrated into a third wiring harness 8, used to electrically connect the tinted glass films of N regions to the door control system. However, with the continuous development of tinted glass functionality, the number of wires that need to be installed inside the door is also constantly increasing, such as... Figure 7 The number of wires shown is 11, resulting in an increasingly larger diameter for the third wiring harness 8. This leads to the following problem: To ensure the normal operation of the third wiring harness 8 and avoid interference with surrounding components, a certain gap needs to be maintained between the third wiring harness 8 and the surrounding components. However, within the already limited space of the car door, many essential components are already arranged. The remaining limited space poses a significant challenge for arranging the large-diameter third wiring harness 8. Furthermore, due to the insufficient gap, it collides with surrounding components during lifting and lowering, producing abnormal noises. Utility Model Content

[0006] The purpose of this invention is to provide a system for controlling the function of photochromic glass, which reduces the space occupied by the wiring harness in the door, makes the wiring harness easier to assemble, avoids interference with surrounding parts, and reduces abnormal noise.

[0007] The purpose of this utility model is achieved through the following technical solution: a system for controlling the function of tinted glass is provided, comprising: a tinted glass control unit for a car door is installed inside the car door, and the tinted glass control unit is electrically connected to each area of ​​the tinted glass; the car door control system is electrically connected to the tinted glass control unit through a first wiring harness, the first wiring harness including a signal wire, a negative power wire, and a positive power wire, the negative power wire and the positive power wire supplying power to the tinted glass control unit; the tinted glass control unit receives communication control commands from the car door control system through the signal wire, and changes the power-on or power-off state of each area of ​​the tinted glass through the communication control commands.

[0008] Preferably, the photochromic glass control unit includes a power module, a communication module, an MCU control module, and a drive module; the power module and the communication module are electrically connected to the door control system, and the power module is electrically connected to the communication module, the MCU control module, and the drive module; the MCU control module is connected to the drive module and the communication module, and the drive module is electrically connected to the photochromic glass.

[0009] Preferably, the photochromic glass control unit is integrated with the photochromic glass in a single package.

[0010] Preferably, the first wire harness is wrapped with a protective sleeve.

[0011] Preferably, the communication control commands adopt the LIN communication mode, and the signal wires are LIN communication signal lines.

[0012] Preferably, the communication control commands adopt CAN communication mode, and the signal wires are CAN communication signal lines.

[0013] Preferably, the photochromic glass control unit is connected to the photochromic glass via a second wiring harness, which has (N+1) wires.

[0014] Preferably, the outer diameter of the conductor in the second wire harness is smaller than the outer diameter of the conductor in the first wire harness.

[0015] Due to the adoption of the above technical solution, this utility model has the following advantages:

[0016] This utility model discloses a system for controlling the function of tinted glass. It adopts an independent tinted glass control unit and signal communication mode, which effectively reduces the number of connecting wires between the door control system and the tinted glass. The outer diameter of the first wire harness is small, thereby reducing the space occupied by the first wire harness in the door. It is not only easy to assemble the first wire harness, but also avoids interference with surrounding parts and reduces the abnormal noise generated by the first wire harness when the window glass is raised and lowered. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of a system for controlling the function of photochromic glass according to the present invention;

[0019] Figure 2 This is a schematic diagram of the photochromic glass control unit;

[0020] Figure 3 This is a schematic diagram of the LIN communication signal harness;

[0021] Figure 4 This is a schematic diagram of the CAN communication signal harness.

[0022] Figure 5 This is a schematic diagram showing the connection between the photochromic glass control unit and the photochromic glass via a second wiring harness.

[0023] Figure 6 A schematic diagram of a system for controlling the function of photochromic glass using existing technology;

[0024] Figure 7 This is a schematic diagram of the third wiring harness.

[0025] Figure label:

[0026] 1-Color-changing glass control unit, 11-Power supply module, 12-Communication module, 13-MCU control module, 14-Drive module;

[0027] 2- Door control system;

[0028] 3-First wiring harness; 31-LIN communication signal line; 32-Power supply negative wire; 33-Power supply positive wire; 34-Protective sleeve; 35-CAN communication signal line;

[0029] 4-Photochromic glass, 41-Glass body, 42-Photochromic glass film;

[0030] 5-Lifting structure, 51-Tractor;

[0031] 6-Second wiring harness; 7-Door controller; 8-Third wiring harness. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] Example 1

[0034] Please see Figure 1 and Figure 3 A system for controlling the function of photochromic glass includes: a photochromic glass control unit 1, a door control system 2, and a first wiring harness 3.

[0035] The photochromic glass control unit 1 is located inside the vehicle door, and is electrically connected to each area of ​​the photochromic glass 4. The door control system 2 is electrically connected to the photochromic glass control unit 1 via a first wiring harness 3, which includes a signal wire, a negative power wire 32, and a positive power wire 33. The negative power wire 32 and the positive power wire 33 supply power to the photochromic glass control unit 1. The photochromic glass control unit 1 receives communication control commands from the door control system 2 via the signal wire, and changes the power-on or power-off state of each area of ​​the photochromic glass 4 through these commands. Specifically, using conventional technology, the photochromic glass 4 moves up and down with the vehicle body's lifting structure 5. The photochromic glass 4 includes a glass body 41 and a photochromic glass film 42, which covers the surface of the glass body 41 and is divided into N areas, preferably N being 5-12. Each area is electrically connected to the photochromic glass control unit 1 individually via a different wire, thus each area achieves its corresponding color change through a separate control circuit. Both the tinted glass control unit 1 and the door control system 2 adopt existing technologies. The existing technology integrates the tinted glass control unit and the door control system into a door controller 7. The door controller 7 controls the glass tinting through the third wiring harness 8. This system only separates the original door controller 7 into an independent tinted glass control unit 1 and door control system 2.

[0036] This utility model discloses a system for controlling the function of tinted glass. It adopts an independent tinted glass control unit 1 and a first wiring harness 3 for signal communication, replacing the original wiring harness consisting of (N+1) wires. This effectively reduces the number of connecting wires between the door control system 2 and the tinted glass 4. The outer diameter of the first wiring harness 3 is smaller than that of the third wiring harness 8, especially as the tinted glass 4 is divided into more areas. This reduces the space occupied by the first wiring harness 3 in the door, making it easier to assemble and avoiding interference with surrounding parts. It also reduces the abnormal noise problem caused by the first wiring harness 3 when the window glass 4 is raised and lowered.

[0037] Please see Figure 2Furthermore, the photochromic glass control unit 1 includes a power module 11, a communication module 12, an MCU control module 13, and a drive module 14. The power module 11 and communication module 12 are electrically connected to the door control system 2, and the power module 11 is also electrically connected to the communication module 12, MCU control module 13, and drive module 14. The MCU control module 13 is connected to the drive module 14 and communication module 12, and the drive module 14 is electrically connected to the photochromic glass 4. Specifically, the power module 11 is electrically connected to the door control system 2 via a negative power wire 32 and a positive power wire 33, providing power to the photochromic glass control unit 1. The communication module 12 is electrically connected to a signal wire, receiving commands from the door control system 2 such as zoned color changing, heating, and video playback. Upon receiving a command, the communication module 12 feeds it back to the MCU control module 13. After processing, the MCU control module 13 converts the data into on / off signals, driving the drive module 14 to disconnect or connect power to each zone, thereby controlling the photochromic glass. Simultaneously, the processed information is returned to the door control system 2 via the communication module 12, thus forming a closed loop.

[0038] Please see Figure 1 Furthermore, the photochromic glass control unit 1 and the photochromic glass 4 are integrated into a single package. Specifically, the photochromic glass control unit 1 and the photochromic glass film 42 are directly integrated during production. This structure reduces the assembly size of the photochromic glass control unit 1 and the photochromic glass 4 through integration.

[0039] Please see Figure 4 Furthermore, the first wire harness 3 is wrapped with a protective sleeve 34. The protective sleeve 34 completely encloses the first wire harness 3, preventing wear or deformation and extending its service life. Preferably, the protective sleeve 34 is made of PVC material.

[0040] Please see Figure 3 Furthermore, the communication control command adopts the LIN communication mode, and the signal wire is the LIN communication signal line 31. After adopting the LIN communication mode, the first wiring harness 3 has only three wires, namely the LIN communication signal line 31, the negative power supply wire 32, and the positive power supply wire 33, which effectively reduces the outer diameter of the first wiring harness 3.

[0041] Example 2

[0042] Please see Figure 4 The specific implementation method of this embodiment is basically the same as that of Embodiment 1, except that:

[0043] The communication control command adopts the CAN communication mode, and the signal wire is the CAN communication signal line 35. After adopting the CAN communication mode, the first wiring harness 3 only has four wires: two CAN communication signal lines 35, a negative power supply wire 32, and a positive power supply wire 33, which effectively reduces the outer diameter of the first wiring harness 3.

[0044] Example 3

[0045] Please see Figure 5 The specific implementation method of this embodiment is basically the same as that of Embodiment 1 and Embodiment 2, except that:

[0046] The photochromic glass control unit 1 is connected to the photochromic glass 4 via a second wiring harness 6, which has N+1 wires. Specifically, the lifting structure 5 has a bracket 51, which moves synchronously up and down with the photochromic glass 4. The bracket 51 and the housing of the photochromic glass control unit 1 have coaxial threaded holes, and the photochromic glass control unit 1 is mounted on the bracket 51 with screws. A male plug is located at the end of the second wiring harness 6 near the photochromic glass 4, and a female socket is located on the photochromic glass film 42. The second wiring harness 6 is connected to the photochromic glass 4 via the male plug and the female socket. Although the second wiring harness 6 still has (N+1) wires, it is positioned between the bracket 51 and the photochromic glass 4, is shorter in length, and remains stationary relative to the photochromic glass 4, thus avoiding the problems associated with other wiring harnesses. Figure 1 The existing technical solution suffers from problems due to the large outer diameter of the third wiring harness 8. This new structure disconnects the second wiring harness 6 and the photochromic glass 4, facilitating the replacement of the photochromic glass control unit 1 or the photochromic glass 4.

[0047] Furthermore, the outer diameter of the conductor in the second harness 6 is smaller than that in the first harness 3. Because the current flowing through the conductor in the second harness 6 is less than the current flowing through the conductor in the first harness 3, the second harness 6 can use conductors with smaller diameters, thus resulting in a smaller outer diameter for the second harness 6.

[0048] This utility model discloses a system for controlling the function of tinted glass. It employs an independent tinted glass control unit 1 and LIN (CAN) communication, effectively reducing the number of connecting wires between the door control system 2 and the tinted glass 4. The first wiring harness 3 has a small outer diameter, thus reducing the space occupied by it in the door, facilitating assembly, avoiding interference with surrounding parts, and reducing noise generated when the first wiring harness 3 moves up and down with the window glass 4. The tinted glass control unit 1 is mounted on a bracket 51. Disconnecting the second wiring harness 6 from the tinted glass 4 facilitates replacement of either the tinted glass control unit 1 or the tinted glass 4.

[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific implementation method of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the spirit of this utility model should be included within the protection scope of this utility model.

Claims

1. A system for controlling the functionality of a chromic glass, characterized in that, The application relates to a variable color glass control unit (1) arranged in a vehicle door, the variable color glass control unit (1) being electrically connected with N regions of a variable color glass (4) one by one; a vehicle door control system (2) is electrically connected with the variable color glass control unit (1) through a first wire harness (3); the first wire harness (3) comprises a signal wire, a power negative electrode wire (32) and a power positive electrode wire (33), the power negative electrode wire (32) and the power positive electrode wire (33) supply power for the variable color glass control unit (1), the variable color glass control unit (1) receives a communication control instruction of the vehicle door control system (2) through the signal wire, and the communication control instruction changes the power-on or power-off state of each region of the variable color glass (4). The variable color glass control unit (1) comprises a power module (11), a communication module (12), an MCU control module (13) and a driving module (14); the power module (11) and the communication module (12) are electrically connected with the vehicle door control system (2), the power module (11) is electrically connected with the communication module (12), the MCU control module (13) and the driving module (14); the MCU control module (13) is connected with the driving module (14) and the communication module (12), and the driving module (14) is electrically connected with the variable color glass (4).

2. The system for controlling the functions of the tinted glass according to claim 1, characterized in that, The variable color glass control unit (1) is integrally packaged with the variable color glass (4).

3. The system for controlling the function of the tinted glass according to claim 1 or 2, characterized in that, The first wire harness (3) is externally wrapped with a protective sleeve (34).

4. The system for controlling the function of the tinted glass according to claim 1 or 2, characterized in that, The first wire harness (3) is externally wrapped with a protective sleeve (34).

5. The system for controlling the functions of the tinted glass according to claim 3, characterized in that, The communication control instruction adopts a LIN communication mode, and the signal wire is a LIN communication signal wire (31).

6. The system for controlling the function of the tinted glass according to claim 1, 2 or 5, characterized in that, The communication control instruction adopts a CAN communication mode, and the signal wire is a CAN communication signal wire (35).

7. The system for controlling the function of the tinted glass according to claim 1, 2 or 5, characterized in that, The variable color glass control unit (1) is connected with the variable color glass (4) through a second wire harness (6), and the second wire harness (6) is provided with N+1 wires.

8. The system for controlling the function of the tinted glass according to claim 1 or 2, characterized in that, The wire outer diameter of the second wire harness (6) is smaller than that of the first wire harness (3).

9. The system for controlling the functions of the tinted glass according to claim 8, characterized in that, ​

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