Front windshield glass assembly

Abstract

A front windshield glass assembly comprises a front windshield glass body, an electric heating assembly and a waterproof device, the front windshield glass body comprises laminated glass, and the electric heating assembly comprises a heating device arranged in the front windshield glass body and a plugging device used for being electrically connected with the heating device. The waterproof device is arranged on the edge of the laminated glass and / or between the laminated glass and the electric heating assembly so as to prevent the front windshield glass body and the electric heating assembly from being affected with damp. According to the electric heating front windshield glass assembly, the waterproof device is arranged on the front windshield glass, so that the sealing performance of the front windshield glass is improved, the safety coefficient of the electric heating front windshield glass is improved, and the service life of the electric heating front windshield glass is prolonged; the plug-in device is fixed on the dash panel assembly, so that the problem of poor fixation of the plug-in body and the wire harness is solved.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a front windshield assembly. Background Art

[0002] At present, some models on the market are equipped with an electric heating function for the front windshield. By using laminated glass to make the front windshield and arranging electrical components with heating functions in the interlayer of the laminated glass, the front windshield can be heated by electricity without external force under low-temperature conditions. However, there are corresponding potential safety hazards of poor sealing. Washing liquid, windshield washer fluid, rain, snow and other external liquids are likely to enter the interlayer, resulting in problems such as damage to electrical components and moisture fogging of the laminated glass, affecting the heating effect and appearance of the front windshield. In addition, the electrical components related to the electric heating function sometimes are damaged and torn due to vibrations and accidental touches during the driving of the vehicle, which will also affect the normal use of the electric heating function and bring unnecessary troubles. Summary of the Invention

[0003] The utility model provides a front windshield assembly with good sealing performance and not easily damaged electrical components.

[0004] The front windshield assembly provided by the utility model includes a front windshield glass body, an electric heating assembly and a waterproof device. The front windshield glass body includes laminated glass. The electric heating assembly includes a heating device arranged in the front windshield glass body and a plug-in device for electrically connecting with the heating device. The waterproof device is arranged at the edge of the laminated glass and / or between the laminated glass and the electric heating assembly to prevent the front windshield glass body and the electric heating assembly from being affected by moisture.

[0005] Further, the plug-in device includes a plug-in connector body and a wire harness. The plug-in connector body is arranged on the front apron assembly, and both ends of the wire harness are electrically connected with the plug-in connector body and the heating device respectively.

[0006] Further, the plug-in device further includes a metal foil, a copper busbar and a main housing. The metal foil is embedded in the main housing. One end of the copper busbar is buried in the main housing and electrically connected with the metal foil, and the other end of the copper busbar is electrically connected with the heating device.

[0007] Further, the plug-in device further includes a copper busbar protection layer. The copper busbar protection layer is arranged on the side of the copper busbar facing the driver's cab, and the copper busbar protection layer is used to prevent the copper busbar from rubbing against the vehicle interior sheet metal.

[0008] Further, the plugging device includes a first plugging device and a second plugging device. The front windshield glass assembly further includes a first plugging assembly and a second plugging assembly. The first plugging assembly includes the first plugging device and a first protection box. The first plugging device is disposed within the first protection box. An arc portion for protecting the copper wiring is provided on the first protection box. The arc portion is disposed on one side of the first protection box where the copper wiring is embedded. The second plugging assembly includes the second plugging device and a second protection box. A connection portion for assembling and fixing with the front apron assembly is provided on the second protection box.

[0009] Further, the front windshield glass assembly further includes a first fixing device and a second fixing device for fixing the first plugging device and the second plugging device, and a first fixing assembly and a second fixing assembly for fixing the first plugging assembly and the second plugging assembly. The first fixing assembly is relatively fixed to the front apron assembly of the vehicle through the first fixing device. The second fixing assembly includes the second fixing device and a limit guide rail. The connection portion is fixed to the limit guide rail through the second fixing device. The limit guide rail is relatively fixed to the front apron assembly.

[0010] Further, both the first fixing device and the second fixing device include a buckle portion. The buckle portion is relatively installed and fixed to the front apron assembly by being snapped into the front apron assembly.

[0011] Further, the heating device further includes a temperature sensor for detecting the temperature of the front windshield glass body. The temperature sensor is electrically connected to the body control module BCM through the plugging device. The temperature sensor is disposed at the top and / or the bottom of the front windshield glass body.

[0012] Further, the plug connector body includes a positioning pin and a fixing buckle. The plug connector body is integrally fixed to the positioning pin and the fixing buckle respectively. The positioning pin is used for positioning the plug connector body on the front apron assembly. The fixing buckle is used for relatively fixing the plug connector body to the front apron assembly.

[0013] Further, the waterproof device includes a waterproof strip and a waterproof tape. The waterproof strip wraps the bottom of the laminated glass. The waterproof tape is pasted between the laminated glass and the waterproof strip, and between the laminated glass and the copper wiring.

[0014] The front windshield glass assembly provided by the present utility model improves the sealing performance of the front windshield glass by arranging a waterproof device on the front windshield glass, and improves the safety factor and service life of the electrically heated front windshield glass. The front windshield glass assembly of the present utility model also fixes the plug-in device on the front apron assembly by arranging fixing devices corresponding to the space designs of the engine compartment and the cockpit, solving the problem of poor fixation of the plug-in connector body and the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front windshield glass assembly provided by the present utility model.

[0016] Figure 2 It is a schematic diagram of the plug-in device in the present utility model.

[0017] Figure 3 It is an A-A cross-sectional view of the second fixing assembly and the front windshield glass body in the present utility model.

[0018] Figure 4 It is a B-B cross-sectional view of the plug-in connector body and the front apron assembly in the present utility model.

[0019] Figure 5 It is a schematic diagram of the first plug-in device and the first fixing assembly in the present utility model.

[0020] Figure 6 It is a schematic diagram of the second plug-in device and the second fixing assembly in the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the present utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0022] It should be noted that the terms "first", "second", "third", "fourth", etc. in the description and claims of the present utility model are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0023] The orientation terms such as "X direction", "Y direction" and "Z direction" in this specification respectively refer to the common "vehicle body X direction", "vehicle body Y direction" and "vehicle body Z direction" in the automotive field. Among them, the "vehicle body X direction" refers to the length direction of the vehicle body, and at the same time is the front-back direction; the "vehicle body Y direction" refers to the width direction of the vehicle body, and at the same time is the left-right direction; the "vehicle body Z direction" refers to the height direction of the vehicle body, and at the same time is the up-down direction.

[0024] Please refer to Figure 1, the present utility model provides a front windshield glass assembly, which includes a front windshield glass body 1, an electric heating assembly, and a waterproof device. The front windshield glass body 1 includes a laminated glass 10. The electric heating assembly includes a plug-in device 3 for electrical connection and a heating device provided on the front windshield glass body 1. The heating device is used to heat the front windshield glass body 1 within the laminated glass 10 under the control of a body control module (BCM). The plug-in device 3 is used to supply power to the heating device and provide an impedance matching function for the heating device. One end of the plug-in device 3 is used to be electrically connected to the body control module (BCM), and the other end is electrically connected to the heating device. The plug-in device 3 is connected to the front bulkhead assembly 2 through a fixing device integrally fixed to the front bulkhead assembly 2 and is integrally fixed to the front bulkhead assembly 2. The waterproof device is provided on the edge of the laminated glass 10 and / or between the front windshield glass body 1 and the electric heating assembly to prevent the front windshield glass body 1 and the electric heating assembly from getting damp. Specifically, in this embodiment, the laminated glass 10 has a three-layer structure with an inner plate 1a, an outer plate 1b, and a lamination film 1c. The lamination film 1c is sandwiched between the inner plate 1a and the outer plate 1b, and the heating device is provided on the lamination film 1c; the plug-in device 3 and its corresponding fixing device are arranged in groups on the left and right sides of the front windshield glass body 1. That is to say, a group of the plug-in device 3 and its corresponding fixing device are provided on the left side of the front windshield glass body 1, and a group of the plug-in device 3 and its corresponding fixing device are also provided on the right side of the front windshield glass body 1. The front windshield glass assembly of the present utility model improves the sealing performance of the front windshield glass through the waterproof device. While preventing it from getting damp and fogging, it also prevents related electrical components from being damaged by moisture. By fixing the electric heating assembly, it solves the problem of poor fixing of related electrical components, prevents related electrical components from being torn and damaged due to vibration or accidental touch, and improves the safety factor and service life of the electrically heated front windshield glass.

[0025] Further, the heating device includes a heating wire for electrically heating the front windshield glass body 1 and a temperature sensor 11 for detecting the temperature of the front windshield glass body 1. The heating wire is disposed on the lamination film 1c. The temperature sensor 11 is electrically connected to the body control module BCM through the plug-in device 3. The temperature sensor 11 is disposed at the top and / or bottom of the front windshield glass body 1. Specifically, in this embodiment, two temperature sensors 11 are disposed on both sides of the rearview mirror at the top of the front windshield glass body 1, and two temperature sensors 11 are also disposed on both sides of the bottom of the front windshield glass body 1. The temperature sensor 11 can collect the temperature information of the front windshield glass body 1 before and after the heating wire is energized and during the energization heating process of the heating wire, so as to provide a judgment basis for the body control module BCM to control the heating duration and start / stop of the heating wire. For example, when the temperature sensor 11 detects that the current temperature exceeds the threshold, the heating wire is controlled to stop heating. In other preferred embodiments of the present invention, the number of the temperature sensors 11 and their positions on the front windshield glass body 1 can be adjusted according to the vehicle model and cost. For example, only two temperature sensors 11 are disposed at the bottom of the front windshield glass body 1, and no temperature sensor 11 is disposed at the rearview mirror, which reduces a certain cost on the premise of realizing the temperature detection function and also improves the aesthetics of the front windshield glass body 1. The front windshield glass assembly of the present invention realizes the heating function and the start / stop control logic through the heating wire, the temperature sensor 11 and the body control module BCM, and the control logic is simple and the cost is low.

[0026] Please refer to Figure 2 and Figure 3 , further, the plug-in device 3 includes a plug-in body 31 and a wire harness 32. The two ends of the wire harness 32 are respectively electrically connected to the plug-in body 31 and the heating device. The plug-in body 31 is disposed on the front panel assembly 2. Further, the plug-in body 31 includes a positioning pin 311 and a fixing buckle 312. The plug-in body 31 is integrally fixed to the positioning pin 311 and the fixing buckle 312 respectively. The positioning pin 311 is used to position the plug-in body 31 on the front panel assembly 2, and the fixing buckle 312 is used to relatively fix the plug-in body 31 and the front panel assembly 2. Specifically, in this embodiment, the positioning pin 311 and the fixing buckle 312 are disposed on the side of the plug-in body 31 facing the cockpit and are not visible from the engine compartment, that is, the front of the vehicle. The fixing buckle 312 is a stud structure with threads. The plug-in body 31 is relatively fixed to the front panel assembly 2 through the positioning pin 311 and the fixing buckle 312, and the wire harness 32 extends from the side of the plug-in body 31 facing the front windshield glass body 1.

[0027] Furthermore, the connector 3 also includes a metal foil 33, a copper bus bar 34, a copper bus bar protective layer 36 and a main shell 35. The metal foil 33 is embedded in the main shell 35. One end of the metal foil 33 is electrically connected to the wiring harness 32, and the other end is electrically connected to the copper bus bar 34. One end of the copper bus bar 34 is buried in the main shell 35 and electrically connected to the metal foil 33. The other end of the copper bus bar 34 is electrically connected to the heating device. The copper bus bar protective layer 36 is attached to the side of the copper bus bar 34 facing the cockpit. The copper bus bar protective layer 36 is used to prevent the copper bus bar 34 from rubbing against the sheet metal inside the vehicle. Specifically, in the present embodiment, since the heating device heats the windshield body 1 through the heating wire, the heating wire is an electrical element that performs electrical heating based on the resistance heating effect and is thin in texture. Therefore, it is necessary to use a metal foil 33 and a copper bus bar 34 for connection between the heating wire and the wiring harness 32 to match the impedance and improve the conductivity; the metal foil 33, the copper bus bar 34 and the wiring harness 32 are welded together in the main shell 35, the wiring harness 32 extends into the main shell 35 from the bottom of the main shell 35, and the copper bus bar 34 extends from the main shell 35 toward one side of the windshield body 1, i.e., the top, outside the main shell 35 and is electrically connected to the heating wire; the copper bus bar protective layer 36 is made of felt, and the copper bus bar protective layer 36 covers the side of the copper bus bar 34 facing the windshield body 1, i.e., the top and the rear, to prevent the copper bus bar 34 from rubbing against the nearby sheet metal and protect the copper bus bar 34.

[0028] Furthermore, the fixing device of the connector 3 includes a buckle portion 51 and a fixing ring 52. The buckle portion 51 is fixedly mounted relative to the front panel assembly 2 by being inserted into the front panel assembly 2. The fixing ring 52 is integrally connected with the buckle portion 51. The fixing ring 52 is used to fix and store the wire harness 32 so that the wire harness 32 is straightened and fixed. Specifically, in this embodiment, the buckle portion 51 is a stud structure with threads, and the fixing ring 52 is arranged at the top of the buckle portion 51. The wire harness 32 extending from the connector body 31 extends into the fixing ring 52 and then extends to the front windshield body 1, so that the wire harness 32 is straightened into an "L" shape to avoid the nearby sheet metal. It is easy to understand that the buckle portion 51 and the fixing ring 52 thereon are used to provide a fixed inflection point for the wire harness 32, so its position and size can be adjusted according to the design of the engine compartment and the cockpit and the length of the wire harness 32 to achieve the best avoidance effect.

[0029] Please also read Figure 4, Further, the waterproof device includes a waterproof strip 7 and a waterproof tape 8. The waterproof strip 7 covers the bottom of the front windshield glass body 1, and the waterproof tape 8 is pasted between the front windshield glass body 1 and the waterproof strip 7, and between the front windshield glass body 1 and the copper wiring 34. Specifically, in this embodiment, the waterproof strip 7 is a rubber strip structure with a "U"-shaped cross-section, which wraps the bottom of the laminated glass 10 from below. The waterproof strip 7 abuts against and seals the inner plate 1a and the outer plate 1b from the front and rear ends to achieve the sealing of the bottom of the front windshield glass body 1; the waterproof tape 8 is a double-sided tape, which is respectively arranged between the lamination film 1c and the inner plate 1a, and between the inner plate 1a and the copper wiring 34. The waterproof tape 8 between the lamination film 1c and the inner plate 1a is also adhered to the bottom of the inner plate 1a in a "U"-shaped manner, adhering and sealing the lamination film 1c and the inner plate 1a. The thickness of the waterproof tape 8 between the lamination film 1c and the inner plate 1a is 0.06 mm; the waterproof tape 8 between the inner plate 1a and the copper wiring 34 is adhered between the inner plate 1a and the copper wiring 34 in an inverted "U"-shaped manner, adhering and sealing the inner plate 1a and the copper wiring 34. The thickness of the waterproof tape 8 between the inner plate 1a and the copper wiring 34 is 0.2 mm. The front windshield glass assembly of the present utility model protects the bottom of the front windshield glass body 1 and the copper wiring 34 through the waterproof strip 7 and the waterproof tape 8, effectively preventing related electrical components from being affected by moisture and the glass from fogging, and improving the safety factor and service life of the front windshield glass.

[0030] Please refer to Figure 5 and Figure 6, further, the plugging device 3 of the present utility model includes a first plugging device and a second plugging device. Correspondingly, the front windshield glass assembly of the present utility model includes a first plugging assembly and a second plugging assembly. The first plugging assembly includes a first plugging device and a first protection box 4a. The first plugging device is disposed within the first protection box 4a. An arc portion 41 for protecting the copper wire row 34 is provided on the first protection box 4a. The arc portion 41 is disposed on one side of the first protection box 4a where the copper wire row 34 is buried. The second plugging assembly includes a second plugging device and a second protection box 4b. A connecting portion 42 for assembling and fixing with the front apron assembly 2 is provided on the second protection box 4b. Specifically, the first plugging assembly is located on the left side of the front windshield glass assembly, and the second plugging assembly is located on the right side of the front windshield glass assembly. That is to say, the two are respectively used to transfer the first plugging device located on the left side of the front windshield glass body 1 and the second plugging device located on the right side of the front windshield glass body 1. It is easy to understand that the plugging devices 3 located on the left and right sides of the front windshield glass assembly can be designed with different sizes according to the actual conditions of the engine compartment and the cockpit, and can also have the same or different electrical functions, such as: powering the temperature sensor 11 and / or the heating wire, transmitting control signals for the temperature sensor 11 and / or the heating wire, etc. In this embodiment, the first protection box 4a is located near the left water trough. The first protection box 4a is integrally fixed to the main housing 35 and covers the main housing 35. The arc portion 41 thereon is an arc-shaped flange protruding from the main housing 35 towards the copper wire row 34. When the copper wire row 34 undergoes relative torsion with the first protection box 4a due to accidental contact or vibration, etc., the arc portion 41 contacts the copper wire row 34 through the arc-shaped flange structure thereon. Compared with the traditional rectangular protection box structure, the arc-shaped flange makes the contact area between the copper wire row 34 and the main housing 35 larger, the force is more dispersed, and the copper wire row 34 is prevented from being torn; the second protection box 4b is located near the right windshield wiper motor. Since the structure here is relatively narrow and the sheet metal space is relatively small, the second protection box 4b is integrally connected to the front apron assembly 2 through the connecting portion 42.

[0031] Correspondingly, the front windshield glass assembly of the present utility model further includes a first fixing device 5a and a second fixing device 5b for fixing the first plugging device and the second plugging device, as well as a first fixing assembly for fixing the first plugging assembly and a second fixing assembly for fixing the second plugging assembly. The first fixing assembly includes the first fixing device 5a, and the first fixing assembly is relatively fixed to the front apron assembly 2 through the first fixing device 5a. The second fixing assembly includes the second fixing device 5b and a limiting guide rail 6. The connecting portion 42 is installed and fixed on the limiting guide rail 6 through the second fixing device 5b, and the limiting guide rail 6 is relatively fixed to the front apron assembly 2. Specifically, in this embodiment, since the position near the left water chute is relatively spacious, the first plugging assembly and the first fixing assembly on the left are arranged loosely, and the length of the wire harness 32 on the left is also relatively long. The first fixing assembly provides an inflection point for the wire harness 32 on the left through the first fixing device 5a for fixing the wire harness 32 on the left, avoiding friction and collision between the plug-in connector body 31, the wire harness 32 and the sheet metal. Since the position near the right windshield wiper motor is relatively narrow, the second plugging assembly and the second fixing assembly on the right are arranged compactly, and the length of the wire harness 32 on the right is also relatively short. The second fixing assembly is fixed to a limiting guide rail 6 fixedly connected to the front apron assembly 2 through the second fixing device 5b. One end of the second fixing device 5b is clamped and fixed to the connecting portion 42, and the other end is fixedly connected to the limiting guide rail 6, while maximizing the use of the space at this place and avoiding rotation and poor fixing of the plug-in connector body 31 and the wire harness 32. The front windshield glass assembly of the present utility model provides two different installation and fixing methods for the plugging device 3 through the first plugging assembly, the first fixing assembly, the second plugging assembly and the second fixing assembly correspondingly designed according to the space of the engine compartment and the driver's cab, respectively adapting to large spaces, small spaces, long wire harnesses 32 and short wire harnesses 32, solving the problem of poor fixing of the plug-in connector body 31 and the wire harness 32, and preventing related electrical components from being damaged by moisture.

[0032] In summary, the front windshield glass assembly of the present utility model improves the sealing performance of the front windshield glass by providing a waterproof device on the front windshield glass, improving the safety factor and service life of the electrically heated front windshield glass. The front windshield glass assembly of the present utility model also fixes the plugging device on the front apron assembly through the fixing device correspondingly designed according to the space of the engine compartment and the driver's cab, solving the problem of poor fixing of the plug-in connector body and the wire harness.

[0033] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A front windshield glass assembly, characterized in that: The invention comprises a windshield body (1), an electric heating assembly and a waterproof device, wherein the windshield body (1) comprises a laminated glass (10), the electric heating assembly comprises a heating device arranged in the windshield body (1) and a connector (3) for electrically connecting to the heating device, and the waterproof device is arranged at the edge of the laminated glass (10) and / or between the laminated glass (10) and the electric heating assembly to prevent the windshield body (1) and the electric heating assembly from being damp.

2. The windshield assembly according to claim 1, characterized in that: The connector device (3) comprises a connector body (31) and a wiring harness (32); the connector body (31) is arranged on the front panel assembly (2); and two ends of the wiring harness (32) are electrically connected to the connector body (31) and the heating device respectively.

3. The windshield assembly according to claim 2, characterized in that: The plug-in device (3) further comprises a metal foil (33), a copper bus wire (34) and a main shell (35); the metal foil (33) is embedded in the main shell (35); one end of the copper bus wire (34) is buried in the main shell (35) and is electrically connected to the metal foil (33); and the other end of the copper bus wire (34) is electrically connected to the heating device.

4. The windshield assembly according to claim 3, characterized in that: The connector (3) further comprises a copper busbar protection layer (36), which is arranged on the side of the copper busbar wire (34) facing the cockpit, and the copper busbar protection layer (36) is used to prevent the copper busbar wire (34) from rubbing against sheet metal inside the vehicle.

5. The windshield glass assembly according to claim 3, characterized in that: The connector (3) comprises a first connector and a second connector, and the windshield assembly further comprises a first connector assembly and a second connector assembly. The first connector assembly comprises the first connector and a first protection box (4a). The first connector is arranged in the first protection box (4a). The first protection box (4a) is provided with an arc-shaped portion (41) for protecting the copper busbar (34). The arc-shaped portion (41) is arranged on a side of the first protection box (4a) where the copper busbar (34) is buried. The second connector assembly comprises the second connector and a second protection box (4b). The second protection box (4b) is provided with a connection portion (42) for being assembled and fixed with the front panel assembly (2).

6. The windshield assembly according to claim 5, characterized in that: The windshield glass assembly further comprises a first fixing device (5a) and a second fixing device (5b) for fixing the first connector and the second connector, and a first fixing assembly and a second fixing assembly for fixing the first connector assembly and the second connector assembly, the first fixing assembly being fixed relative to the front panel assembly (2) of the automobile via the first fixing device (5a), the second fixing assembly comprising the second fixing device and a limiting guide rail (6), the connecting portion (42) being fixed to the limiting guide rail (6) via the second fixing device (5b), and the limiting guide rail (6) being fixed relative to the front panel assembly (2).

7. The windshield glass assembly according to claim 6, characterized in that: The first fixing device (5a) and the second fixing device (5b) both comprise a buckle portion (51), and the buckle portion (51) is mounted and fixed relative to the front panel assembly (2) by being buckled into the front panel assembly (2).

8. The windshield glass assembly according to claim 1, characterized in that: The heating device further comprises a temperature sensor (11), wherein the temperature sensor (11) is used to detect the temperature of the windshield body (1), wherein the temperature sensor (11) is electrically connected to a vehicle body controller BCM via the connector (3), and wherein the temperature sensor (11) is arranged at the top of the windshield body (1) and / or at the bottom of the windshield body (1).

9. The windshield glass assembly according to claim 2, characterized in that: The connector body (31) comprises a positioning pin (311) and a fixing buckle (312), and the connector body (31) is fixedly connected to the positioning pin (311) and the fixing buckle (312) respectively; the positioning pin (311) is used to position the connector body (31) on the front panel assembly (2), and the fixing buckle (312) is used to relatively fix the connector body (31) and the front panel assembly (2).

10. The windshield glass assembly according to claim 3, characterized in that: The waterproof device comprises a waterproof strip (7) and a waterproof tape (8), wherein the waterproof strip (7) covers the bottom of the laminated glass (10), and the waterproof tape (8) is attached between the laminated glass (10) and the waterproof strip (7), and between the laminated glass (10) and the copper busbar (34).

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