Rear window demisting structure for automobile

Abstract

The utility model relates to the technical field of automobile window demisting, and discloses an automobile rear window demisting structure which comprises an installation seat, a rear window is installed in the middle of the rear side wall of the installation seat, and a ventilation grille is installed in the middle of the top of the installation seat. A plurality of fans distributed in an array mode are mounted in the middle of the bottom of the inner side wall of the second mounting groove, and a heater is mounted in the middle of the front side of the rear vehicle window and located on the top of the compartment. According to the rear window demisting structure for the automobile, heat is generated through the heater, the heat is quickly and uniformly blown to the rear window in combination with airflow generated by the fan, and mist on the rear window can be effectively removed within a short time. The heater and the fan work cooperatively, the angle of the adjusting grid on the rear side wall of the heater can be adjusted through the adjuster of the transmission block, the output direction of heat can be accurately controlled according to the actual situation, it is ensured that the heat acts on an area with heavy mist in a concentrated mode, and the demisting effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile window defogging, in particular to a rear window defogging structure for an automobile. Background Art

[0002] When there's a significant temperature difference between the inside and outside of a vehicle, the hot air inside hits the cold rear window, and moisture in the air condenses into small droplets on the glass surface, forming fog. For example, in cold winter, turning on the car's heater while the outside temperature is lower can easily cause the rear window to fog up. In summer, driving in high temperatures and then suddenly entering a cool underground parking lot can also cause the rear window to fog up due to the temperature difference. Rear window defogger uses specific technical means to remove fog from the rear window caused by temperature differences, humidity, and other factors. This ensures the driver can clearly see what's behind them while driving, improving driving safety.

[0003] However, the existing technology has the following shortcomings. Traditional resistance wires are mainly embedded in the rear window glass, which generates heat when powered on to defog. Due to the limited heating area of ​​the resistance wire and the relatively slow heat transfer, the defog speed is slow. Especially in cases of severe fog, it takes a long time to achieve a good defogging effect. The resistance wire is usually distributed linearly inside the glass, which can easily lead to uneven temperature distribution on the rear window. Some areas may have higher temperatures while other areas have lower temperatures, resulting in different defogging effects and the possibility of residual fog in some areas. Therefore, those skilled in the art have provided a rear window defogging structure for automobiles to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a rear window defogging structure for an automobile.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a rear window defogging structure for an automobile, comprising a mounting base, wherein the rear window is mounted in the middle of a rear side wall of the mounting base, a ventilation grille is mounted in the middle of a top of the mounting base, a second mounting slot is provided below the ventilation grille and in the middle of the top, a plurality of fans distributed in an array are mounted in the middle of the bottom of an inner side wall of the second mounting slot, and a heater is mounted in the middle of a front side of the rear window and in the top of the vehicle compartment;

[0006] Furthermore, the heat generated by the heater, combined with the airflow generated by the fan, is quickly and evenly directed toward the rear window, effectively removing mist from the rear window in a short period of time. The synergy between the heater and the fan significantly improves defog efficiency, providing the driver with a clear rear view and enhancing driving safety.

[0007] Preferably, a first mounting groove is provided in the middle and front position of the rear side wall of the mounting seat, a driving motor is installed in the middle and right position of the inner side wall of the first mounting groove, and an output end of the driving motor extends into the middle and front position of the top of the inner side wall of the second mounting groove;

[0008] Furthermore, the drive motor serves as the driving force for several fans.

[0009] Preferably, each of the fans includes a mounting frame, a transmission gear is rotatably connected to the middle position of the bottom of the inner side wall of each mounting frame, a fan blade is installed at the middle position of the top of each transmission gear, and each fan blade is rotatably connected to the middle upper end position of the inner side wall of the corresponding mounting frame;

[0010] Furthermore, the mounting frame provides a stable mounting location for the fan blades and transmission gear, ensuring that the fan blades and transmission gear will not be displaced or loosened due to vibration or other external forces during the operation of the vehicle, thereby ensuring the normal operation of the fan.

[0011] Preferably, a transmission belt is sleeved on the outer side walls of several of the transmission gears, and the transmission belt is used to realize the linkage of the several transmission gears, so that each transmission gear can operate synchronously under the drive of the transmission belt to complete a specific mechanical transmission function. The transmission belt and the transmission gear are closely matched to ensure that no slippage occurs during the transmission process and the power is transmitted stably;

[0012] Furthermore, the transmission belts sleeved on the outer walls of several transmission gears realize the linkage of each transmission gear, so that each gear can operate synchronously under the drive of the transmission belt, ensuring the stable operation of the fan system and avoiding the failure of the entire system due to the failure of a single gear.

[0013] Preferably, the output end of the driving motor is connected to the input end of the transmission gear on the left side;

[0014] Furthermore, the output end of the driving motor acts on the transmission gear to rotate, thereby causing the fan blades to rotate.

[0015] Preferably, an adjusting grid is rotatably connected to the middle position of the rear side wall of the heater, a transmission block is installed at the middle rear position of the left side wall of the heater, the output end of the transmission block is connected to the regulator, and the output end of the regulator is connected to the input end;

[0016] Furthermore, the adjustment grille on the rear wall of the heater can be adjusted in angle by rotating the regulator in the transmission block, which can accurately control the output direction of heat according to actual conditions, ensuring that the heat is concentrated in areas with heavier fog, further improving the demisting effect.

[0017] Preferably, a plurality of drainage grooves distributed in an array are provided at the rear middle position of the bottom of the inner side wall of the second mounting groove, and a support plate is installed at the rear middle position of the top of the inner side wall of the mounting seat;

[0018] Furthermore, the airflow is guided and channeled through the drainage groove to ensure smooth flow of the airflow, avoid airflow turbulence and local blockage, and improve the working stability of the entire demisting system.

[0019] The utility model has the following beneficial effects:

[0020] 1. In this utility model, the rear window defogger mechanism for automobiles generates heat through a heater, which, combined with the airflow generated by a fan, quickly and evenly blows the heat toward the rear window, effectively removing fog from the rear window in a short period of time. The synergistic operation of the heater and fan significantly improves defog efficiency, providing the driver with a clear rearview and enhancing driving safety. The adjustable grille on the rear side wall of the heater can be adjusted in angle via an adjuster on the transmission block, precisely controlling the heat output direction based on actual conditions, ensuring that heat is concentrated in areas with heaviest fog, further enhancing the defogger effect.

[0021] 2. In this utility model, a transmission belt, which is sleeved on the outer walls of several transmission gears, realizes the linkage of the transmission gears, so that each gear can rotate synchronously under the drive of the transmission belt. This design ensures the stable operation of the fan system and avoids the failure of the entire system due to the failure of a single gear.

[0022] 3. In the present invention, a plurality of drainage grooves distributed in an array at the rear side of the middle of the bottom of the inner side wall of the second installation groove guide and dredge the airflow, ensuring smooth flow of the airflow, avoiding airflow turbulence and local blockage, and improving the working stability of the entire demisting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic top view of a rear window defogging structure for an automobile proposed in the present invention;

[0024] Figure 2 This is a partial cross-sectional view of a rear window defogging structure for an automobile proposed in the present utility model;

[0025] Figure 3 This is a schematic diagram of the connection between the fan structure and the transmission gear and transmission belt;

[0026] Figure 4 A three-dimensional schematic diagram of a heater.

[0027] Legend:

[0028] 1. Mounting base; 2. Ventilation grille; 3. Drainage trough; 4. Rear window; 5. Support plate; 6. First mounting slot; 7. Fan; 8. Fan blades; 9. Drive belt; 10. Drive gear; 11. Mounting frame; 12. Second mounting slot; 13. Heater; 14. Drive motor; 15. Transmission block; 16. Regulator; 17. Adjustment grid. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 4 A rear window defogger structure for an automobile includes a mounting base 1, a rear window 4 mounted in the middle of the rear side wall of the mounting base 1, a ventilation grille 2 mounted in the middle of the top of the mounting base 1, a second mounting slot 12 located below the ventilation grille 2 and in the middle of the top, and a plurality of fans 7 arranged in an array and mounted in the middle of the bottom of the inner side wall of the second mounting slot 12. A heater 13 is mounted in the middle of the front side of the rear window 4 and at the top of the vehicle compartment. Heat generated by the heater 13, combined with the airflow generated by the fans 7, is quickly and evenly blown toward the rear window 4, effectively removing fog from the rear window 4 in a short period of time. The coordinated operation of the heater 13 and the fans 7 greatly improves the defogger efficiency, provides the driver with a clear rearview, and enhances driving safety.

[0031] A first mounting groove 6 is provided in the front middle of the rear side wall of the mounting base 1, and a drive motor 14 is installed in the right middle of the inner side wall of the first mounting groove 6. The output end of the drive motor 14 extends into the front middle of the top of the inner side wall of the second mounting groove 12. The drive motor 14 serves as the driving force for several fans 7. Each fan 7 includes a mounting frame 11. A transmission gear 10 is rotatably connected to the middle of the bottom of the inner side wall of each mounting frame 11, and a fan blade 8 is installed in the middle of the top of each transmission gear 10. Each fan blade 8 is rotatably connected to the upper middle of the inner side wall of the corresponding mounting frame 11. The mounting frame 11 provides a stable mounting position for the fan blade 8 and the transmission gear 10. To ensure that during the operation of the car, the fan blades 8 and the transmission gear 10 will not be displaced or loosened due to vibration or other external forces, thereby ensuring the normal operation of the fan 7, a transmission belt 9 is sleeved on the outer wall of several transmission gears 10, and the transmission belt 9 is used to realize the linkage of several transmission gears 10, so that each transmission gear 10 can be driven by the transmission belt to operate synchronously to complete a specific mechanical transmission function. The transmission belt 9 is closely matched with the transmission gear 10 to ensure that no slippage occurs during the transmission process and power is transmitted stably. The transmission belt 9 sleeved on the outer wall of several transmission gears 10 realizes the linkage of each transmission gear 10, so that each gear can be driven by the transmission belt 9 to operate synchronously, ensuring the stable operation of the fan 7 system and avoiding the failure of the entire system due to a single gear failure. The output end of the drive motor 14 is connected to the input end of the transmission gear 10 on the left side, and the output end of the drive motor 14 acts on the transmission gear 10 to rotate, thereby causing the fan blades 8 to rotate.

[0032] An adjustment grille 17 is rotatably connected to the middle position of the rear wall of the heater 13, and a transmission block 15 is installed at the rear middle position of the left side wall of the heater 13. The output end of the transmission block 15 is connected to the regulator 16, and the output end of the regulator 16 is connected to the input end. The adjustment grille 17 on the rear wall of the heater 13 can be adjusted in angle by rotating the regulator 16 in the transmission block 15, and can accurately control the output direction of heat according to actual conditions to ensure that the heat is concentrated in areas with heavier fog, further improving the demisting effect. A number of drainage grooves 3 distributed in an array are provided at the rear middle position of the bottom middle of the inner wall of the second mounting groove 12, and a support plate 5 is installed at the rear middle position of the top middle of the inner wall of the mounting seat 1. The airflow is guided and channeled through the 3 drainage grooves to ensure smooth flow of the airflow, avoid airflow turbulence and local blockage, and improve the working stability of the entire demisting system.

[0033] Working Principle: First, the drive motor 14, located in the first mounting slot 6 on the rear side wall of the mounting base 1, is activated. Its output connects to the input of the left-side transmission gear 10, driving the left transmission gear 10 to rotate. Because a drive belt 9 is sleeved onto the outer walls of several transmission gears 10, the transmission belt 9 drives the transmission gears 10 to operate synchronously. The transmission belt 9 fits tightly with the transmission gears 10, ensuring that they do not slip during transmission, thereby transmitting power stably. The fan blades 8, mounted in the top center of each transmission gear 10, also rotate accordingly. These fan blades 8 are located near the top center of the inner wall of the mounting frame 11, which is mounted in an array at the bottom center of the inner wall of the second mounting slot 12. The rotation of the fan blades 8 generates airflow, which is blown upward through the ventilation grille 2 in the top center of the mounting base 1. Simultaneously, the heater 13, located in the center in front of the rear window 4 and at the top of the vehicle compartment, begins to operate, generating heat. An adjustment grille 17, rotatably connected to the middle of the rear wall of the heater 13, can be rotated and adjusted by the drive block 15 and the regulator 16. The output of the transmission block 15 is controlled by a regulator 16, which in turn adjusts the angle of the regulating grille 17 to redirect heat output, allowing it to more effectively reach the rear window 4. A plurality of drainage grooves 3 arranged in an array, located at the rear center of the bottom inner wall of the second mounting slot 12, guide and direct the airflow, ensuring smooth flow. A support plate 5, located at the rear center of the top inner wall of the mounting base 1, supports and stabilizes the entire structure.

[0034] The rear window defogger structure for automobiles drives the fan blades 8 to generate airflow through the driving motor 14, and the heater 13 generates heat. The airflow blows the heat toward the rear window 4, the regulating grille 17 adjusts the heat direction, and the diversion groove 3 guides the airflow, thereby achieving the defogger function of the rear window of the automobile.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rear window defogger structure for an automobile, characterized in that: The invention comprises a mounting seat (1), a rear window (4) is mounted in the middle of the rear side wall of the mounting seat (1), a ventilation grille (2) is mounted in the middle of the top of the mounting seat (1), a second mounting slot (12) is provided below the ventilation grille (2) and in the middle of the top, a plurality of fans (7) distributed in an array are mounted in the middle of the bottom of the inner side wall of the second mounting slot (12), and a heater (13) is mounted in the middle of the front side of the rear window (4) and in the top of the vehicle compartment.

2. The automobile rear window defogging structure according to claim 1, characterized in that: A first mounting groove (6) is provided in the middle of the rear side wall of the mounting seat (1), and a driving motor (14) is installed in the middle of the inner side wall of the first mounting groove (6), and the output end of the driving motor (14) extends into the middle of the inner side wall of the second mounting groove (12).

3. The automobile rear window defogging structure according to claim 1, characterized in that: Each of the fans (7) comprises a mounting frame (11), a transmission gear (10) is rotatably connected to the middle position of the bottom of the inner side wall of each mounting frame (11), a fan blade (8) is installed at the middle position of the top of each transmission gear (10), and each of the fan blades (8) is rotatably connected to the middle position of the upper end of the inner side wall of the corresponding mounting frame (11).

4. The automobile rear window defogging structure according to claim 3, characterized in that: A transmission belt (9) is sleeved on the outer side walls of the plurality of transmission gears (10), and the transmission belt (9) is used to realize the linkage of the plurality of transmission gears, so that each transmission gear (10) can be driven by the transmission belt to operate synchronously to complete a specific mechanical transmission function. The transmission belt (9) and the transmission gear (10) are closely matched to ensure that no slip occurs during the transmission process and that power is transmitted stably.

5. The automobile rear window defogging structure according to claim 2, characterized in that: The output end of the driving motor (14) is connected to the input end of the transmission gear (10) on the left side.

6. The automobile rear window defogging structure according to claim 1, characterized in that: An adjusting grid (17) is rotatably connected to the middle position of the rear side wall of the heater (13), and a transmission block (15) is installed at the rear side of the middle position of the left side wall of the heater (13). The output end of the transmission block (15) is connected to a regulator (16), and the output end of the regulator (16) is connected to the input end.

7. The automobile rear window defogging structure according to claim 1, characterized in that: A plurality of drainage grooves (3) distributed in an array are provided at the rear middle position of the bottom of the inner side wall of the second mounting groove (12), and a support plate (5) is installed at the rear middle position of the top of the inner side wall of the mounting seat (1).

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