Front windshield electric heating glass and automobile

Abstract

Front windshield electric heating glass and an automobile, the front windshield electric heating glass comprises a front windshield glass body and an electric heating device, the electric heating device is used for heating the front windshield glass body, the electric heating device comprises a first heating area and a second heating area, and the first heating area and the second heating area are arranged in the front windshield glass body and are electrically isolated from each other; the first heating area and the second heating area are arranged in the Y direction of an automobile body and used for heating corresponding areas on the front windshield glass body respectively. The electric heating glass for the front windshield can heat the front windshield glass under the control of a body control module (BCM), solves the problem of frost accumulation under the working conditions of rain, snow and cold, reduces potential safety hazards, is low in total cost and energy consumption, and does not cause secondary damage to the front windshield glass.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior and exterior decoration, in particular to a front windshield electrically heated glass. Background Art

[0002] In snowy, sleety or relatively cold working conditions, frost will accumulate on the front windshield of an automobile. The accumulated frost will significantly affect the visibility inside the vehicle, posing a safety hazard. Regarding the defrosting problem, there are currently technical solutions for defrosting by using the warm air of the in-vehicle air conditioner and external active defrosting. However, in low-temperature working conditions, the engine water temperature and the in-vehicle air conditioner warm up slowly, which is not conducive to energy conservation and emission reduction. External active defrosting is likely to cause secondary damage to the front windshield. Summary of the Invention

[0003] The utility model provides a front windshield electrically heated glass with low cost and no secondary damage, which comprises a front windshield glass body and an electric heating device. The electric heating device is used to heat the front windshield glass body. The electric heating device includes a first heating area and a second heating area which are arranged on the front windshield glass body and are electrically isolated from each other. The first heating area and the second heating area are arranged along the vehicle body Y direction and are respectively used to heat the corresponding areas on the front windshield glass body.

[0004] Further, the front windshield glass body includes an outer layer and an intermediate layer. The intermediate layer is located inside the outer layer. Electric heating wires are evenly arranged in both the first heating area and the second heating area, and the electric heating wires are arranged on the intermediate layer.

[0005] Further, the electric heating device further includes a bus bar and a connector. The connector is used to supply power to the electric heating device. The connector is electrically connected to the bus bar. The connector is arranged at the ventilation cover plate. The bus bar is used to be electrically connected to the electric heating wires, and the bus bar is arranged along the top edge, side edges and bottom edge of the front windshield glass body.

[0006] Further, the bus bar includes a positive wire and a negative wire. The positive wire and the negative wire are used to be electrically connected to the connector. The positive wire is arranged on the side edges and the top edge, the negative wire is arranged on the bottom edge, and the electric heating wires are arranged between the positive wire on the top edge and the negative wire on the bottom edge.

[0007] Further, the electric heating device further includes a metal foil and a transition copper bar. The metal foil is electrically connected to the connector and the transition copper bar, and the transition copper bar is electrically connected to the bus bar and the metal foil.

[0008] Further, the outer layer includes a first glass layer and a second glass layer. The first glass layer is disposed in front of the second glass layer, and the intermediate layer is disposed in front of the second glass layer. The first glass layer and the second glass layer cover the intermediate layer in the front-rear direction.

[0009] Further, the electric heating wire is a heating tungsten wire, and the electric heating wire is arranged on the intermediate layer in a wavy shape.

[0010] Further, the Y-direction width of the first heating area and the second heating area is less than or equal to 590 mm, the Z-direction height of the first heating area and the second heating area is the same as the Z-direction height of the front windshield glass body, and the sum of the areas of the first heating area and the second heating area is less than or equal to 0.9 ㎡.

[0011] Further, the present invention further includes a body control module BCM, which includes a power supply module, a control module, and an indicator light module. The power supply module is used to supply power to the connector, the control module is used to control the operation of the electric heating device for heating, and the indicator light module is used to emit light to indicate its working state when the electric heating device is operating for heating.

[0012] Further, the present invention further includes an automobile, which includes the aforementioned front windshield electrically heated glass.

[0013] The front windshield electrically heated glass provided by the present invention realizes heating of the front windshield glass through the first heating area and the second heating area arranged along the vehicle body Y direction, the busbars arranged along the top edge, side edges, and bottom edge of the front windshield glass, and the electric heating wire arranged along the Z direction in the intermediate layer of the front windshield glass, solves the problem of frost accumulation under rain, snow, and cold conditions, reduces potential safety hazards, and the overall cost and energy consumption of the front windshield electrically heated glass of the present invention are relatively low, and it will not cause secondary damage to the front windshield glass. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the front windshield electrically heated glass provided by the present invention. Detailed Embodiments

[0015] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0016] It should be noted that the terms "first", "second", "third", "fourth", etc. in the description and claims of the present invention are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0017] The orientation terms such as "X direction", "Y direction", and "Z direction" in this specification respectively refer to the "vehicle body X direction", "vehicle body Y direction", and "vehicle body Z direction" commonly used in the automotive field. Among them, the "vehicle body X direction" refers to the length direction of the vehicle body, which is also the front-back direction; the "vehicle body Y direction" refers to the width direction of the vehicle body, which is also the left-right direction; the "vehicle body Z direction" refers to the height direction of the vehicle body, which is also the gravity direction and the up-down direction.

[0018] Please refer to Figure 1 , the front windshield electrically heated glass of the present utility model includes a front windshield glass body 1 and an electric heating device. The electric heating device is used to heat the front windshield glass body 1 under the control of a body control module (BCM). The electric heating device includes a first heating zone 21 and a second heating zone 22 that are disposed on the front windshield glass body 1 and are electrically isolated from each other. The first heating zone 21 and the second heating zone 22 are arranged along the vehicle body Y direction, and the first heating zone 21 and the second heating zone 22 are respectively used to heat the corresponding areas on the front windshield glass body 1. Specifically, in this embodiment, the shapes of the first heating zone 21 and the second heating zone 22 are symmetric about the vehicle body X axis and are respectively disposed on the left and right sides of the vehicle body X axis. Taking the first heating zone 21 on the left side as an example, the shape of the first heating zone 21 is: the upper half fits the top edge of the front windshield glass body 1, the lower half fits the bottom edge of the front windshield glass body 1, and the left and right sides are approximately rectangular quadrilaterals perpendicular to the Z direction. The Y-direction width of the first heating zone 21 and the second heating zone 22, that is, L1 in the attached drawings of the specification Figure 1 is less than or equal to 590 mm; the sum of their widths, that is, L2 in the attached drawings of the specification Figure 1 is less than 1200 mm; the Z-direction height of the first heating zone 21 and the second heating zone 22 is the same as the Z-direction height of the front windshield glass body 1; the sum of the areas of the first heating zone 21 and the second heating zone 22 is less than or equal to 0.9 square meters. The front windshield electrically heated glass in the present utility model heats the front windshield glass through the first heating zone 21 and the second heating zone 22 that are symmetrically arranged along the vehicle body X axis, solves the problem of frost accumulation under rain, snow and cold conditions, reduces potential safety hazards, has relatively low overall cost and energy consumption, and will not cause secondary damage to the front windshield glass. In addition, the front windshield electrically heated glass in the present utility model is suitable for application to front windshield glasses with a length dimension of less than 1200 m.

[0019] Furthermore, the front windshield glass body 1 in the present utility model includes an outer layer and an intermediate layer. The intermediate layer is located within the outer layer. Electric heating wires are disposed in corresponding areas of the first heating zone 21 and the second heating zone 22 on the front windshield glass body 1, and the electric heating wires are disposed on the intermediate layer. Further, the outer layer includes a first glass layer and a second glass layer. The first glass layer is arranged in front of the second glass layer along the vehicle body X direction, and the intermediate layer is arranged in front of the second glass layer along the vehicle body X direction. The first glass layer and the second glass layer respectively wrap the intermediate layer front and back along the vehicle body X direction. Specifically, in this embodiment, the front windshield glass body 1 is laminated glass, the electric heating wire is preferably a heating tungsten wire, and the electric heating wire is preferably arranged in a wavy shape on the intermediate layer.

[0020] Furthermore, the electric heating device further includes a bus bar and a connector 4. The connector 4 is used to supply power to the electric heating device. One end of the connector 4 is used to be electrically connected to the body control module BCM, and the other end is used to be electrically connected to the bus bar. The connector 4 is arranged at the ventilation cover plate. The bus bar is used to be electrically connected to the electric heating wire, and the bus bar is arranged along the top edge, side edges and bottom edge of the front windshield glass body 1. Further, the bus bar includes a positive wire 31 and a negative wire 32. The positive wire 31 and the negative wire 32 are used to be electrically connected to the connector 4. The positive wire 31 is arranged on the side edges and the top edge, and the negative wire 32 is arranged on the bottom edge. The electric heating wire is arranged along the Z direction between the positive wire 31 located on the top edge and the negative wire 32 located on the bottom edge. Specifically, in this embodiment, the shapes of the first heating zone 21 and the second heating zone 22 are symmetric about the vehicle body X-axis and are respectively arranged on the left and right sides of the vehicle body X-axis. Taking the second heating zone 22 on the right side as an example, the negative wire 32 of the second heating zone 22 is introduced into the intermediate layer of the front windshield glass body 1 from the connector 4 located at the right ventilation cover plate and extends along the bottom edge of the front windshield glass body 1 towards the vehicle body X-axis; the positive wire 31 of the second heating zone 22 is also introduced into the intermediate layer of the front windshield glass body 1 from the connector 4 located at the right ventilation cover plate, extends along the bottom edge of the front windshield glass body 1 towards the right side edge of the front windshield glass body 1, and when reaching the junction of the right side edge and the bottom edge of the front windshield glass body 1, it extends upward along the right side edge of the front windshield glass body 1, and when reaching the junction of the right side edge and the top edge of the front windshield glass body 1, it extends towards the vehicle body X-axis along the top edge of the front windshield glass body 1. The electric heating device in the present utility model realizes the power supply of the electric heating wire through the connector 4 located at the ventilation cover plate, that is, the black edge area of the front windshield glass, and the bus bar arranged along the top edge, side edges and bottom edge of the front windshield glass. While having a good effect of covering up defects, the heating range on the front windshield glass is effectively and reasonably set by designing and arranging the positive wire 31 and the negative wire 32, the wiring is clean and tidy, and the difficulty of planning the heating area is low.

[0021] Furthermore, the electric heating device further includes a metal foil 5 and a transition copper bar 6. The metal foil 5 is electrically connected to the connector 4 and the transition copper bar 6, and the transition copper bar 6 is electrically connected to the bus bar and the metal foil 5. Specifically, since the electric heating wire in the present utility model is preferably a heating tungsten wire, and the heating tungsten wire uses the resistance heating effect for electric heating and is relatively thin in texture, it is necessary to use the metal foil 5 and the transition copper bar 6 for transition between the electric heating wire and the bus bar. In this embodiment, the transition copper bar 6 is integrally welded to the positive wire 31. The front windshield electric heating glass in the present utility model ensures the working efficiency of the electric heating wire through the metal foil 5 and the transition copper bar 6, has good electrical conductivity and relatively low overall cost.

[0022] Furthermore, the body control module BCM in the present utility model includes a power supply module, a control module and an indicator light module. The power supply module is used to supply power to the connector 4, the control module is used to control the operation of the electric heating device for heating, and the indicator light module is used to emit light to indicate its working state when the electric heating device is operating for heating.

[0023] Furthermore, the present utility model further includes an automobile, which includes the aforementioned front windshield electric heating glass.

[0024] In summary, the front windshield electric heating glass of the present utility model realizes the heating of the front windshield glass through the first heating zone and the second heating zone arranged along the vehicle body Y direction, the bus bar arranged along the top edge, side edges and bottom edge of the front windshield glass, and the electric heating wire arranged in the middle layer of the front windshield glass along the Z direction, solves the problem of frost accumulation under rainy, snowy and cold working conditions, reduces potential safety hazards, has relatively low overall cost and energy consumption, and will not cause secondary damage to the front windshield glass.

[0025] 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 electrically heated glass, characterized in that: The invention comprises a windshield body (1) and an electric heating device, wherein the electric heating device is used to heat the windshield body (1), and the electric heating device comprises a first heating area (21) and a second heating area (22) which are arranged on the windshield body (1) and are electrically isolated from each other, wherein the first heating area (21) and the second heating area (22) are arranged along the Y direction of the vehicle body and are respectively used to heat corresponding areas on the windshield body (1).

2. The electrically heated windshield glass according to claim 1, characterized in that: The windshield body (1) comprises an outer layer and an intermediate layer, wherein the intermediate layer is located inside the outer layer, and electric heating wires are evenly distributed in the first heating area (21) and the second heating area (22), and the electric heating wires are distributed on the intermediate layer.

3. The electrically heated windshield glass according to claim 2, characterized in that: The electric heating device further comprises a busbar and a connector (4), wherein the connector (4) is used to supply power to the electric heating device, the connector (4) is electrically connected to the busbar, the connector (4) is arranged at the ventilation cover plate, the busbar is used to be electrically connected to the electric heating wire, and the busbar is arranged along the top edge, the side edge and the bottom edge of the front windshield body (1).

4. The electrically heated windshield glass according to claim 3, characterized in that: The busbar comprises a positive line (31) and a negative line (32), the positive line (31) and the negative line (32) being used to be electrically connected to the connector (4), the positive line (31) being arranged on the side edge and the top edge, the negative line (32) being arranged on the bottom edge, and the electric heating wire being arranged between the positive line (31) located on the top edge and the negative line (32) located on the bottom edge.

5. The electrically heated windshield glass according to claim 3, characterized in that: The electric heating device further comprises a metal foil (5) and a transfer copper busbar (6); the metal foil (5) is electrically connected to the connector (4) and the transfer copper busbar (6); and the transfer copper busbar (6) is electrically connected to the busbar and the metal foil (5).

6. The electrically heated windshield glass according to claim 2, characterized in that: The outer layer includes a first glass layer and a second glass layer, the first glass layer is arranged in front of the second glass layer, the middle layer is arranged in front of the second glass layer, and the first glass layer and the second glass layer cover the middle layer in a front-to-back direction.

7. The electrically heated windshield glass according to claim 6, characterized in that: The electric heating wire is a heating tungsten wire, and the electric heating wire is arranged on the middle layer in a wave shape.

8. The electrically heated windshield glass according to claim 1, characterized in that: The Y-direction width of the first heating zone (21) and the second heating zone (22) is less than or equal to 590 mm, the Z-direction height of the first heating zone (21) and the second heating zone (22) is the same as the Z-direction height of the front windshield glass body (1), and the sum of the areas of the first heating zone (21) and the second heating zone (22) is less than or equal to 0.9 m2.

9. The electrically heated windshield glass according to claim 1, characterized in that: It also includes a body controller BCM, which includes a power module, a control module and an indicator light module. The power module is used to supply power to the connector (4), the control module is used to control the operation of the electric heating device for heating, and the indicator light module is used to illuminate when the electric heating device is operating for heating to indicate its working status.

10. An automobile, characterized in that: It comprises the electrically heated windshield glass according to any one of claims 1 to 9.

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