Vehicle windscreen wiper, windscreen wiper control system and vehicle
By incorporating a heating film and heat insulation structure into the wiper blades, the problem of wiper blades freezing or accumulating snow in low-temperature environments is solved, achieving uniform heating, energy saving, and automated control, thus ensuring the normal operation of the wipers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGXING GEELY AUTO PARTS CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-12
AI Technical Summary
In low-temperature winter conditions, the contact surface between the wiper blades and the windshield is prone to ice or snow accumulation, causing the wipers to fail to wipe properly and affecting the driver's visibility. Existing technologies also suffer from cumbersome operation, safety hazards, and energy waste.
Design a vehicle windshield wiper, including a wiper blade, a mounting base, a heating film, and a heat insulation structure. The heating film extends along the length of the wiper blade and contacts it, using the heat of the heating film to melt ice or snow. The heat insulation structure ensures effective heat transfer to the wiper blade, reducing energy consumption.
It achieves uniform heating of the wiper blades, improves their lifespan, reduces energy consumption, avoids unnecessary energy waste, and provides automated heating control to ensure normal operation of the wipers in low-temperature environments.
Smart Images
Figure CN224225029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle parts technology, specifically to a vehicle windshield wiper, a windshield wiper control system, and a vehicle. Background Technology
[0002] Vehicle windshield wipers are devices used to clear rainwater, snow, and dirt from the windshield to improve the driver's visibility and safety. A typical windshield wiper consists of a wiper blade, a wiper arm, and an electric motor. The wiper blade is in direct contact with the glass surface and is usually made of rubber or silicone, offering good flexibility and wear resistance. The wiper arm connects the wiper blade and the electric motor, transmitting the motor's motion to the wiper blade.
[0003] In low-temperature winter conditions, ice or snow easily forms on the contact surface between the wiper blades and the windshield, preventing the wipers from working properly and obstructing the driver's vision. Current technical solutions include manual de-icing and spraying antifreeze windshield washer fluid, but these are cumbersome and pose safety hazards. Some wiper technologies embed heating wires within the wiper arms, but these suffer from uneven heating, high energy consumption, and reduced wiper blade lifespan; furthermore, they lack automatic start / stop and automatic heating power adjustment functions, making them inconvenient to use and resulting in unnecessary energy waste. Utility Model Content
[0004] This utility model aims to solve at least one of the above-mentioned technical problems.
[0005] To solve the above problems, this utility model provides a vehicle windshield wiper, including a wiper blade, a mounting base, a heating film, and a heat insulation structure. The wiper blade is mounted on the mounting base, the heating film extends along the length of the wiper blade and contacts the wiper blade, and the heat insulation structure wraps around the side of the heating film that does not contact the wiper blade.
[0006] In this vehicle's windshield wiper system, the mounting bracket serves as the mounting carrier for the wiper blade. The mounting bracket can be connected to the wiper arm, and the wiper arm drives the mounting bracket to move, thereby driving the wiper blade to perform the wiping action. The wiper blade features a heating film that contacts it. When ice or snow accumulates on the side of the wiper blade that touches the windshield, the heating film transfers heat to the wiper blade, melting the ice or snow. Because the heating film is in full contact with the wiper blade, heat is transferred quickly and efficiently. Furthermore, the heating film extends along the length of the wiper blade, allowing for direct heat transfer to all points along its length. This surface-to-surface contact ensures uniform heating and extends the wiper blade's lifespan. Additionally, a heat-insulating structure covers the side of the heating film not in contact with the wiper blade, preventing heat loss and ensuring all heat is transferred to the wiper blade, reducing energy consumption. This efficient heat transfer further enhances the wiper blade's heating efficiency.
[0007] Furthermore, the mounting base has an internal mounting groove, and one side of the mounting base has an opening communicating with the mounting groove. The mounting groove and the opening extend along the length of the wiper blade. A portion of the wiper blade is accommodated in the mounting groove through the opening.
[0008] Furthermore, the wiper blade includes a first part, a second part, and a third part. The first part is located inside the mounting groove, the third part is located outside the mounting base, the second part is inserted into the through-hole, and the first part is connected to the third part through the second part. A gap is provided between the third part and the mounting base, wherein the heating film is disposed between the third part and the mounting base.
[0009] Furthermore, it also includes a first positive conductive contact, a first negative conductive contact, a second positive conductive contact, and a second negative conductive contact. The first positive conductive contact and the first negative conductive contact are respectively disposed on the side wall of the mounting groove. The second positive conductive contact and the second negative conductive contact are respectively disposed on the portion of the wiper blade located in the mounting groove. The second positive conductive contact and the second negative conductive contact are respectively connected to the heating film through wires, and the second positive conductive contact is in contact with the first positive conductive contact, and the second negative conductive contact is in contact with the first negative conductive contact.
[0010] Furthermore, the vehicle windshield wiper also includes a temperature sensor disposed on the heating film, the temperature sensor being used to detect the temperature of the heating film.
[0011] Furthermore, a portion of the heat insulation structure and / or the heating film is embedded within the wiper blade.
[0012] This utility model also provides a windshield wiper control system, including the vehicle windshield wiper as described above, and also including a vehicle power supply and heating controller, wherein the vehicle power supply, the heating controller and the heating film are connected in series.
[0013] Since the technical improvements and effects of the aforementioned windshield wiper control system are at least the same as those of the aforementioned vehicle windshield wipers, the windshield wiper control system will not be described in detail again.
[0014] Furthermore, the windshield wiper control system also includes a vehicle air conditioning controller. The heating controller includes a field-effect transistor (FET), the drain of which is electrically connected to the positive terminal of the vehicle power supply, the source of which is electrically connected to the heating film, and the gate of which is electrically connected to the vehicle air conditioning controller.
[0015] Furthermore, the temperature sensor of the vehicle windshield wiper is electrically connected to the vehicle air conditioning controller; the windshield wiper control system also includes a manual switch, which is electrically connected to the vehicle air conditioning controller; or / and, the windshield wiper control system also includes an ambient temperature sensor, which is electrically connected to the vehicle air conditioning controller; or / and, the windshield wiper control system also includes an ambient humidity sensor, which is electrically connected to the vehicle air conditioning controller; and / or, the windshield wiper control system also includes a fuse, which is disposed between the drain of the field-effect transistor and the positive terminal of the vehicle power supply.
[0016] This utility model also provides a vehicle, including the vehicle wiper as described above, or including the wiper control system as described above.
[0017] Since the technological improvements and effects of the vehicle are at least the same as those of the aforementioned vehicle windshield wipers or windshield wiper control systems, the vehicle will not be described in detail again. Attached Figure Description
[0018] Figure 1 This is a cross-sectional structural diagram of a vehicle windshield wiper according to an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the windshield wiper control system according to an embodiment of the present invention.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Mounting bracket; 11. Mounting slot; 2. Wiper blade; 21. First part; 22. Second part; 23. Third part; 3. Heating film; 41. Temperature sensor; 42. Manual switch; 43. Ambient temperature sensor; 44. Ambient humidity sensor; 45. Fuse; 46. Vehicle air conditioning controller; 47. Heating controller; 471. Field-effect transistor; 51. First positive conductive contact; 52. First negative conductive contact; 53. Second positive conductive contact; 54. Second negative conductive contact; 55. First sensor conductive contact; 56. Second sensor conductive contact; 6. Thermal insulation structure; 7. Windshield. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Unless specifically stated otherwise, the term "connection" can refer to a direct connection or an indirect connection; the term "connection" can refer to a physical connection or an electrical connection.
[0024] See Figure 1 A vehicle windshield wiper according to an embodiment of the present utility model includes a wiper blade 2, a mounting base 1, a heating film 3, and a heat insulation structure 6. The wiper blade 2 is mounted on the mounting base 1. The heating film 3 extends along the length of the wiper blade 2 and contacts the wiper blade 2. The heat insulation structure 6 wraps around the side of the heating film 3 that does not contact the wiper blade 2.
[0025] In this embodiment, the mounting base 1 serves as the mounting carrier for the wiper blade 2 in the vehicle wiper system. The mounting base 1 can be connected to the wiper arm, and the wiper arm drives the mounting base 1 to move, thereby driving the wiper blade 2 to perform the wiping action. The wiper blade 2 is provided with a heating film 3 that contacts it. Thus, when ice or snow accumulates on the side of the wiper blade 2 that contacts the windshield 7, the heating film 3 can transfer its heat to the wiper blade 2, ultimately melting the ice or snow. Furthermore, since the heating film 3 is in full contact with the wiper blade 2, it facilitates rapid heat transfer to the wiper blade 2, ensuring efficient heat transfer.
[0026] Furthermore, the heating film 3 extends along the length of the wiper blade 2, allowing it to directly transfer heat to all points along the length of the wiper blade 2. Combined with the surface-to-surface contact between the heating film 3 and the wiper blade 2, this ensures uniform heating of the wiper blade 2 and extends its lifespan. Moreover, the heat insulation structure 6 wraps around the side of the heating film 3 that is not in contact with the wiper blade 2, preventing heat loss and ensuring that all heat is transferred to the wiper blade 2, thus reducing energy consumption. With the heat from the heating film 3 fully applied to the wiper blade 2, the heating efficiency of the wiper blade can be further improved.
[0027] In this embodiment, the heating film 3 can be a carbon fiber heating film. A carbon fiber heating film is an electrothermal product that uses carbon fiber material as the heating element. Due to the excellent electrical and thermal conductivity of carbon fiber, the carbon fiber heating film heats up quickly and can reach the required temperature in a short time. Compared with traditional heating structures, the carbon fiber heating film consumes less energy, saving electricity. The carbon fiber heating film can achieve uniform heat distribution, avoiding localized overheating. The carbon fiber heating film is lightweight and convenient, and its membrane structure makes it easy to install. The carbon fiber heating film has strong durability and anti-aging properties, resulting in a long service life.
[0028] In this embodiment, the heat insulation structure 6 can be a heat insulation and waterproof gel, which not only has heat insulation function but also waterproof function, and can prevent external water from entering the heating film 3 to ensure the safety and performance of the heating film 3.
[0029] Optionally, see Figure 1 The heating film 3 is embedded in the wiper blade 2.
[0030] In this embodiment, the heating film 3 can be embedded within the wiper blade 2. This allows for multi-faceted contact between the heating film 3 and the wiper blade 2, facilitating rapid heat transfer and improving heat transfer efficiency, thus enabling the wiper blade 2 to heat up quickly. The heat insulation structure 6 wraps around the exposed side of the heating film 3. Alternatively, a portion of the heat insulation structure 6 can be embedded within the wiper blade 2, especially when the heat insulation structure 6 is a heat-insulating and waterproof gel. Embedding a portion of the heat insulation structure 6 within the wiper blade 2 prevents it from falling off, ensuring its heat insulation and waterproofing effectiveness.
[0031] See Figure 1 Optionally, the mounting base 1 has a mounting groove 11 inside, and a through-hole communicating with the mounting groove 11 is provided on one side of the mounting base 1. The mounting groove 11 and the through-hole extend along the length direction of the wiper blade 2, respectively. A portion of the wiper blade 2 is accommodated in the mounting groove 11 through the through-hole.
[0032] In this embodiment, a portion of the wiper blade 2 is housed within the mounting groove 11 through an opening. Since the width of the opening is smaller than the width of the mounting groove 11, and also smaller than the width of the portion of the wiper blade 2 located within the mounting groove 11, the wiper blade 2 will not fall off after being placed within the mounting groove 11. Furthermore, this installation method between the wiper blade 2 and the mounting base 1 allows the wiper arm to move along with the mounting base 1, thus achieving the wiping action.
[0033] See Figure 1 Optionally, the wiper blade 2 includes a first part 21, a second part 22, and a third part 23. The first part 21 is located in the mounting groove 11, the third part 23 is located outside the mounting base 1, the second part 22 is inserted into the opening, and the first part 21 is connected to the third part 23 through the second part 22. A gap is provided between the third part 23 and the mounting base 1, and the heating film 3 is disposed in the gap between the third part 23 and the mounting base 1.
[0034] In this embodiment, the first part 21, the second part 22 and the third part 23 are preferably integrally formed structures. This is to avoid the existence of connecting structures between them, to ensure that they will not break, and to ensure the uniformity of heat transfer.
[0035] In this embodiment, the mounting groove 11 and the through-hole extend through the mounting base 1 at least one end along their length, and an opening is formed at the corresponding end of the mounting base 1 (not shown in the figure). When installing the wiper blade 2, the first end of the wiper blade 2 along its length can be inserted into the mounting base 1 through the opening at one end of the mounting base 1. Then, the wiper blade 2 as a whole is moved along the mounting groove 11 and the through-hole until the first part 21 is completely inserted into the mounting groove 11 along its length and the second part 22 is completely inserted into the through-hole along its length, thereby realizing the installation of the wiper blade 2.
[0036] In this embodiment, as Figure 1 As shown, there may be a gap between the third part 23 of the wiper blade 2 and the mounting base 1 to form an embedded groove, and the heating film 3 is located in the embedded groove and is not exposed. That is, the heating film 3 is equivalent to being embedded in the wiper blade 2. This installation method of the heating film 3 allows the heating film 3 to have multi-faceted contact with the wiper blade 2. For example, the heating film 3 is in contact with at least the third part 23 and the second part 22. Through multi-faceted contact between the heating film 3 and the wiper blade 2, it is more conducive to quickly transferring the heat of the heating film 3 to the wiper blade 2, thereby improving the efficiency of heat transfer.
[0037] When the heating film 3 is located in the recessed groove between the third part 23 and the mounting base 1, a portion of the heat insulation structure 6 can be located in the recessed groove together with the heating film 3. For example, a portion of the heat insulation structure 6 can fill the space between the heating film 3 and the mounting base 1 to prevent the heat from the heating film 3 from being transferred to the mounting base 1.
[0038] There may be only one heating film 3, with an opening in its center extending along the length of the heating film 3. The heating film 3 can be fitted onto the second part 22 through the opening and located in the inner groove. Alternatively, there may be two heating films 3, with the two heating films 3 located on opposite sides of the width of the second part 22.
[0039] Optionally, the mounting groove 11 and / or the groove wall of the opening are provided with a positioning structure (not shown in the figure), and the first part 21 and / or the second part 22 of the wiper blade 2 are provided with a positioning mating structure (not shown in the figure). When the wiper blade 2 is fully inserted into the mounting base 1 in the length direction and is installed in place, the positioning structure and the positioning mating structure cooperate to ensure that the wiper blade 2 will not move or fall off in its length direction. The positioning structure can be a positioning buckle, and the positioning mating structure can be a positioning groove.
[0040] See Figure 1 Optionally, the vehicle windshield wiper further includes a first positive conductive contact 51, a first negative conductive contact 52, a second positive conductive contact 53, and a second negative conductive contact 54. The first positive conductive contact 51 and the first negative conductive contact 52 are respectively disposed on the side wall of the mounting groove 11. The second positive conductive contact 53 and the second negative conductive contact 54 are respectively disposed on the portion of the wiper blade 2 located in the mounting groove 11. The second positive conductive contact 53 and the second negative conductive contact 54 are respectively connected to the heating film 3 through wires, and the second positive conductive contact 53 is in contact with the first positive conductive contact 51, and the second negative conductive contact 54 is in contact with the first negative conductive contact 52.
[0041] In this embodiment, the heating film 3 mounted on the wiper blade 2 requires electricity to heat up. Since the heating film 3 needs to move with the wiper blade 2 to be installed on the mounting base 1, and the wiper blade 2 may require disassembly, repair, and reinstallation later, energizing the heating film 3 via a continuous wire could make the installation and removal of the wiper blade 2 inconvenient. To facilitate the electrical connection between the heating film 3 and the vehicle's power supply, in this embodiment, a first positive conductive contact 51 and a first negative conductive contact 52 are provided on the side wall of the mounting groove 11, and a second positive conductive contact 53 and a second negative conductive contact 54 are provided at the portion of the wiper blade 2 located within the mounting groove 11. The heating film 3 is energized through the corresponding contact between the contacts, which facilitates the installation and removal of the mounting base 1 and the wiper blade 2.
[0042] Specifically, the first positive conductive contact 51 and the first negative conductive contact 52 are respectively used to electrically connect to the positive and negative terminals of the vehicle power supply via wires, and the second positive conductive contact 53 and the second negative conductive contact 54 are respectively connected to the heating film 3 via wires. Thus, when the wiper blade 2 is installed in place on the mounting base 1, the first positive conductive contact 51 is in contact with the second positive conductive contact 53, and the first negative conductive contact 52 is in contact with the second negative conductive contact 54, thereby realizing the conductive connection of the heating film 3 to the vehicle power supply. The vehicle power supply can then supply power to the heating film 3 when needed to make the heating film 3 heat up.
[0043] Specifically, the second positive conductive contact 53 and the second negative conductive contact 54 can be disposed at the first part 21 of the wiper blade 2. The wire between the second positive conductive contact 53 and the heating film 3 can be located inside the wiper blade 2 to prevent the wire from being exposed. Similarly, the wire between the second negative conductive contact 54 and the heating film 3 can also be located inside the wiper blade 2 to prevent the wire from being exposed.
[0044] See Figure 1 Optionally, the vehicle windshield wiper also includes a temperature sensor 41, which is disposed on the heating film 3 and is used to detect the temperature of the heating film 3.
[0045] In this embodiment, the temperature sensor 41 is used to detect the temperature of the heating film 3. If the temperature of the heating film 3 is detected to be too high, heating can be stopped to prevent the wiper blade 2 from being burned and to improve the life of the wiper blade 2.
[0046] Optionally, see Figure 1 The vehicle windshield wiper may also include a first sensor conductive contact 55 and a second sensor conductive contact 56. When the wiper blade 2 is installed in place on the mounting base 1, the first sensor conductive contact 55 and the second sensor conductive contact 56 come into contact. The first sensor conductive contact 55 is used to connect to the vehicle's power supply via a wire, and the second sensor conductive contact 56 is used to connect to the temperature sensor 41 via a wire. Thus, when the wiper blade 2 is installed in place on the mounting base 1, the contact between the first sensor conductive contact 55 and the second sensor conductive contact 56 energizes the temperature sensor 41, ensuring its normal operation and enabling real-time monitoring of the temperature of the heating film 3.
[0047] See Figure 2 Another embodiment of the present invention provides a windshield wiper control system, including the vehicle windshield wiper as described above, and also including a vehicle power supply and heating controller 47, wherein the vehicle power supply, the heating controller 47 and the heating film 3 are connected in series.
[0048] In this embodiment, when the wiper blade 2 is covered with ice or snow on the side facing the windshield 7, the heating film 3 can be energized and heated by the heating controller 47.
[0049] See Figure 2 Optionally, the wiper control system also includes a vehicle air conditioning controller 46. The heating controller 47 includes a field-effect transistor 471. The drain of the field-effect transistor 471 is electrically connected to the positive terminal of the vehicle power supply, the source of the field-effect transistor 471 is electrically connected to the heating film 3, and the gate of the field-effect transistor 471 is electrically connected to the vehicle air conditioning controller 46.
[0050] In this embodiment, the field-effect transistor 471 is specifically an N-channel enhancement-mode MOSFET (hereinafter referred to as a MOSFET), which can be used as a switch to realize the switching of power supply. It has the characteristics of low on-resistance, high conduction efficiency, and fast switching response speed. The gate of this field-effect transistor 471 corresponds to... Figure 2 The gate (G) of the MOSFET 471 corresponds to the drain (D) of the MOSFET. Figure 2 The drain (D) of the MOSFET 471 corresponds to the source (S) of the MOSFET 471. Figure 2 The source (S) terminal of the MOSFET. In actual operation, when there is a voltage input to the gate of the MOSFET, the MOSFET will conduct, that is, the drain and source are connected, thereby energizing the heating film 3; when the gate voltage is turned off, the MOSFET will no longer conduct, that is, the drain and source are no longer connected, thereby de-energizing the heating film 3. The heating controller 47 in this embodiment utilizes this characteristic of the MOSFET, controlling the conduction timing of the MOSFET by controlling the on / off state of the MOSFET gate voltage, thereby controlling the on and off state of the wiper blade heating function. In addition, due to the presence of the MOSFET, high-frequency on / off control can be applied to the MOSFET to achieve the effect of intelligent adjustment of wiper heating power.
[0051] In this embodiment, the vehicle air conditioning controller 46 can send a PWM signal to the MOS transistor. The PWM signal is essentially a voltage signal, generally around 12V. Moreover, the PWM signal is a voltage signal that allows for high-frequency square wave changes. The so-called square wave change means that the voltage of the PWM signal only has two states, 0V and 12V, and the change curve shows a rectangular waveform structure. Furthermore, by adjusting the proportion (duty cycle) of the 12V high level in the PWM signal change, a series of automatic controls on the heating circuit can be achieved. Therefore, it is particularly suitable as the gate control source of the MOS transistor, and can ultimately control the on / off state of the circuit where the heating film is located.
[0052] The heating power can also be automatically adjusted by controlling the high-frequency switching of the MOSFET through the vehicle air conditioning controller 46. For example, adjusting the duty cycle of the vehicle air conditioning controller 46 to a high level will cause the wiper blades 2 to heat up at high power for rapid de-icing and snow removal; adjusting the duty cycle of the air conditioning controller to a low level will cause the wipers to heat up at low power to prevent icing. It is understandable that higher heating power corresponds to a higher heating rate, and lower heating power corresponds to a lower heating rate.
[0053] Of course, in other embodiments, the heating controller 47 may also be simply a circuit switch structure.
[0054] See Figure 2 Optionally, the temperature sensor 41 of the vehicle windshield wiper is electrically connected to the vehicle air conditioning controller 46; the windshield wiper control system also includes a manual switch 42, which is electrically connected to the vehicle air conditioning controller 46; or / and, the windshield wiper control system also includes an ambient temperature sensor 43, which is electrically connected to the vehicle air conditioning controller 46; or / and, the windshield wiper control system also includes an ambient humidity sensor 44, which is electrically connected to the vehicle air conditioning controller 46; and / or, the windshield wiper control system also includes a fuse 45, which is disposed between the drain of the field-effect transistor 471 and the positive terminal of the vehicle power supply.
[0055] In this embodiment, the energization of the heating film 3 in the wiper control system can be automatically controlled. For example, when the vehicle is running, the vehicle air conditioning controller 46 receives signals from the ambient temperature sensor 43 and / or the ambient humidity sensor 44 in real time and judges the external environment. If the external environment is determined to be a low-temperature and high-humidity environment, it means that the wiper blade 2 is likely to have an ice layer and snow accumulation. In this case, the vehicle air conditioning controller 46 can immediately send a PWM high-level signal to the gate of the MOS transistor in the heating controller 47. After the gate of the MOS transistor receives a high level, the MOS transistor will conduct, and the heating film 3 will be energized and start to heat up. When the temperature of the heating film 3 detected by the temperature sensor 41 is higher than a certain threshold (such as 70°C), the vehicle air conditioning controller 46 will immediately cut off the output of the PWM high-level signal, thereby de-energizing the heating film 3, stopping the wiper heating, and thus avoiding damage to the life of the wiper blade 2.
[0056] In this embodiment, the manual switch 42 ensures that passengers or the driver can manually control whether the heating is on, and manual control has higher priority than automatic control. For example, when the vehicle is running, if it is necessary to manually force the wiper blade 2 to heat up, the manual switch 42 can be manually turned on. At this time, after the vehicle air conditioning controller 46 receives the closed signal of the manual switch 42, it will forcibly send a high-level PWM signal to start the wiper heating. Heating can also be terminated by manually turning off the manual switch 42, or by waiting for the temperature of the heating film 3 to rise to a certain threshold and then being forcibly stopped by the air conditioning controller.
[0057] In this embodiment, the manual switch 42 can be located on the vehicle's dashboard for easy driver operation. The fuse 45 protects the circuit containing the heating film 3; if a short circuit or other cause leads to excessive current, the fuse 45 will immediately melt, thus protecting the circuit. The ambient temperature sensor 43 can be an existing ambient temperature sensor in the vehicle, and the manual switch 42 can be an existing windshield defroster switch to reduce costs.
[0058] Another embodiment of the present invention provides a vehicle including the vehicle wiper as described above, or including the wiper control system as described above.
[0059] Since the technological improvements and effects of the vehicle are at least the same as those of the aforementioned vehicle windshield wipers or windshield wiper control systems, the vehicle will not be described in detail again.
[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features.
[0061] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A vehicle windshield wiper, characterized in that, The device includes a wiper blade (2), a mounting base (1), a heating film (3), and a heat insulation structure (6). The wiper blade (2) is mounted on the mounting base (1). The heating film (3) extends along the length of the wiper blade (2) and contacts the wiper blade (2). The heat insulation structure (6) wraps around the side of the heating film (3) that does not contact the wiper blade (2).
2. The vehicle windshield wiper according to claim 1, characterized in that, The mounting base (1) has an internal mounting groove (11), and one side of the mounting base (1) has a through-hole communicating with the mounting groove (11). The mounting groove (11) and the through-hole extend along the length of the wiper blade (2). A portion of the wiper blade (2) is accommodated in the mounting groove (11) through the through-hole.
3. The vehicle windshield wiper according to claim 2, characterized in that, The wiper blade (2) includes a first part (21), a second part (22) and a third part (23). The first part (21) is located in the mounting groove (11), the third part (23) is located outside the mounting base (1), the second part (22) is inserted into the opening, and the first part (21) is connected to the third part (23) through the second part (22). There is a gap between the third part (23) and the mounting base (1), and the heating film (3) is disposed in the gap between the third part (23) and the mounting base (1).
4. The vehicle windshield wiper according to claim 2, characterized in that, It also includes a first positive conductive contact (51), a first negative conductive contact (52), a second positive conductive contact (53), and a second negative conductive contact (54). The first positive conductive contact (51) and the first negative conductive contact (52) are respectively disposed on the side wall of the mounting groove (11). The second positive conductive contact (53) and the second negative conductive contact (54) are respectively disposed on the part of the wiper blade (2) located in the mounting groove (11). The second positive conductive contact (53) and the second negative conductive contact (54) are respectively connected to the heating film (3) through wires, and the second positive conductive contact (53) is in contact with the first positive conductive contact (51), and the second negative conductive contact (54) is in contact with the first negative conductive contact (52).
5. The vehicle windshield wiper according to claim 1, characterized in that, It also includes a temperature sensor (41), which is disposed on the heating film (3) and is used to detect the temperature of the heating film (3).
6. The vehicle windshield wiper according to claim 1, characterized in that, Part of the heat insulation structure (6) and / or the heating film (3) is embedded in the wiper blade (2).
7. A windshield wiper control system, characterized in that, The vehicle wiper as described in any one of claims 1-6 further includes a vehicle power supply and a heating controller (47), wherein the vehicle power supply, the heating controller (47), and the heating film (3) of the vehicle wiper are connected in series.
8. The wiper control system according to claim 7, characterized in that, It also includes a vehicle air conditioning controller (46), the heating controller (47) includes a field-effect transistor (471), the drain of the field-effect transistor (471) is electrically connected to the positive terminal of the vehicle power supply, the source of the field-effect transistor (471) is electrically connected to the heating film (3), and the gate of the field-effect transistor (471) is electrically connected to the vehicle air conditioning controller (46).
9. The wiper control system according to claim 8, characterized in that, The temperature sensor (41) of the vehicle windshield wiper is electrically connected to the vehicle air conditioning controller (46); The wiper control system further includes a manual switch (42) electrically connected to the vehicle air conditioning controller (46); and / or an ambient temperature sensor (43) electrically connected to the vehicle air conditioning controller (46); and / or an ambient humidity sensor (44) electrically connected to the vehicle air conditioning controller (46); and / or a fuse (45) disposed between the drain of the field-effect transistor (471) and the positive terminal of the vehicle power supply.
10. A vehicle, characterized in that, It includes a vehicle windshield wiper as described in any one of claims 1-6, or a windshield wiper control system as described in any one of claims 7-9.