Hidden door handle of automobile and icebreaking method thereof

Abstract

The invention discloses an automobile hidden door handle which comprises a door handle body, and a carbon fiber heating wire used for heating to melt an ice layer between the door handle and an automobile door is integrated in the door handle body. The ice breaking method comprises the following steps that after a door handle receives an instruction for opening the door handle, the door handle is conventionally popped up; if the door handle is not normally bounced off, a signal that the door handle is not bounced off is fed back to the whole vehicle control system, and the whole vehicle control system sends a heating instruction to the carbon fiber heating wire; after heating, the door handle is bounced off again, and if the door handle can be bounced off, heating is stopped; on the contrary, the previous actions are repeated. The carbon fiber heating pieces are evenly wrapped in the hidden door handle through the molding technology, or the hidden door handle is directly made into a full-carbon-fiber door handle, the handle is simple in structure, the appearance of the handle is not affected, the service life of a motor is prolonged through the carbon fiber door handle, an ice layer can be broken more conveniently and rapidly, and the door handle is safe and effective to open.

Description

Technical Field

[0001] The invention relates to the technical field of automobile door handles, and in particular to an automobile hidden door handle and an ice-breaking method thereof. Background Art

[0002] Compared with traditional car external door handles, hidden door handles are built into the door body and are integrated with the door, making the car body shape more beautiful and more able to arouse users' desire to buy; at the same time, it can lower the windward surface of the whole vehicle, reduce the resistance of the car during operation, and improve the vehicle's power and endurance. Therefore, hidden door handles are increasingly used in high-end bridge cars.

[0003] However, when the vehicle is parked in a low-temperature or extremely cold environment for a long time, the frost or snow covering the door handle will gradually melt into ice. When the ice layer reaches a certain thickness, the hidden door handle cannot be ejected and the door cannot be opened. If you use a hammer to hit the ice layer on the door handle, it may cause damage to the door handle and the door.

[0004] To solve the above problems, there are currently solutions to set up a heating structure near or on the handle. The heating structure requires space to be arranged or affects the appearance of the handle. For example, patent CN118704873A discloses a vehicle with a hidden door handle, including a body, a door, a hidden door handle mechanism, a heater, a temperature sensor and a controller. The door is connected to the body, the hidden door handle mechanism is connected to the door, the heater is located on the door near the hidden door handle mechanism and is connected to the door, the temperature sensor is used to detect the ambient temperature outside the vehicle, and the controller is used to obtain the current ambient temperature detected by the temperature sensor when a door handle preheating trigger event is detected, and if the current ambient temperature is less than the temperature threshold, the heater is controlled to heat. Another example is a hidden door handle, heating system and car disclosed in patent CN118462006A. The door handle includes a heating unit and a power supply unit, and a control unit for controlling the power supply unit to be turned on and off. The heating unit is arranged on the handle shell and is used to heat the handle shell. When heating is required, the control unit turns on the power supply unit according to a heating instruction from the user, and the power supply unit supplies power to the heating unit, and the heating unit automatically heats the handle shell. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a hidden car door handle and an ice-breaking method thereof, which has a simple structure, does not affect the shape of the handle, and the door handle can be opened safely and effectively.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A hidden door handle for an automobile comprises a door handle body, wherein a carbon fiber heating wire is integrated in the door handle body and is used for heating to melt an ice layer between the door handle and the vehicle door.

[0008] The carbon fiber heating wire is an integrated carbon fiber heating sheet, and the carbon fiber heating sheet is arranged inside the door handle body.

[0009] The door handle body is a full carbon fiber structure door handle integrated with carbon fiber heating wires.

[0010] A temperature sensor is integrated in the door handle body.

[0011] The door handle body comprises an outer surface layer of the door handle and an inner surface layer of the door handle, and the carbon fiber heating sheet is arranged between the outer surface layer of the door handle and the inner surface layer of the door handle.

[0012] The edges of the door handle outer layer and the door handle inner layer are compression molded together to form an integral handle structure.

[0013] A method for breaking ice using the hidden door handle of an automobile comprises the following steps:

[0014] After receiving the command to open the door handle, the door handle will pop open in the usual way;

[0015] If the door handle does not pop open normally, the signal that it did not pop open will be fed back to the vehicle control system, and the vehicle control system will send a heating instruction to the carbon fiber heating wire;

[0016] After heating, the door handle will pop open again. If it can pop open, heating will stop; otherwise, the previous action will be repeated.

[0017] Before the door handle is popped open, when the car detects that the ambient temperature is below 0 degrees Celsius, the system will prompt to turn on the hidden door handle heating function; conversely, if the vehicle detects that the ambient temperature is good, it will also prompt to turn off the hidden door handle heating function.

[0018] The door handle has three temperature gears: the first gear ranges from 35 degrees Celsius to 45 degrees Celsius; the second gear ranges from 46 degrees Celsius to 55 degrees Celsius; and the third gear ranges from 56 degrees Celsius to 65 degrees Celsius. During initial heating, the gears will be gradually increased, and after reaching the highest gear, it will be necessary to gradually decrease the gears to lower the temperature until the door handle pops open.

[0019] The working voltage of the carbon fiber heating wire is less than or equal to 12V.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The automobile hidden door handle and its ice-breaking method are reasonably designed. The carbon fiber heating sheet is evenly wrapped in the hidden door handle by using molding technology, or a full carbon fiber door handle is directly made. The handle structure is simple and does not affect the handle appearance. The carbon fiber door handle prolongs the life of the motor and makes it more convenient and quick to break the ice layer. The door handle is safe and effective to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents and symbols in the drawings of this specification:

[0023] Figure 1 It is a schematic diagram of the control principle of the present invention.

[0024] Figure 2 This is a schematic diagram of the handle layer structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the arrangement of the heating wires of the present invention.

[0026] In the figure:

[0027] 1. Door handle outer layer, 2. Carbon fiber heating sheet, 3. Door handle inner layer, 4. Carbon fiber heating wire. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0029] like Figures 1 to 3 As shown, the automobile hidden door handle comprises a door handle body, and the door handle body is a hidden door handle, and the hidden door handle is arranged on the automobile door.

[0030] The door handle body is integrated with a carbon fiber heating wire for heating to melt the ice between the door handle and the car door; preferably: the carbon fiber heating wire is an integrated carbon fiber heating sheet, and the carbon fiber heating sheet is arranged inside the door handle body; or the door handle body is a full carbon fiber structure door handle integrated with the carbon fiber heating wire.

[0031] The automobile hidden door handle and ice-breaking method of the present invention are reasonably designed. The carbon fiber heating sheet is evenly wrapped in the hidden door handle by using molding technology, or a full carbon fiber door handle is directly made. The handle structure is simple and does not affect the handle appearance. The carbon fiber door handle prolongs the life of the motor and makes it more convenient and quick to break the ice layer. The door handle is safe and effective to open.

[0032] Preferably, the door handle body is a plastic structure, a carbon fiber heating sheet is integrated inside the handle, and a temperature sensor is integrated in the door handle body to achieve automatic control.

[0033] The door handle body comprises an outer layer and an inner layer, wherein the carbon fiber heating sheet is arranged between the outer layer and the inner layer; the edges of the outer layer and the inner layer are molded together to form an integral handle structure; the structure is simple and the manufacture is convenient.

[0034] The present invention provides an ice-breaking method for a hidden door handle of an automobile. When the hidden door handle of the automobile is stuck by an ice layer and cannot be opened, the carbon fiber heating sheet of the hidden door handle starts to work, and as the heat is dissipated and transferred, the ice layer absorbs heat and melts until the hidden door handle is opened.

[0035] The ice-breaking method includes the following steps:

[0036] After receiving the command to open the door handle, the door handle will pop open in the usual way;

[0037] If the door handle does not pop open normally, the signal that it did not pop open will be fed back to the vehicle control system, and the vehicle control system will send a heating instruction to the carbon fiber heating wire;

[0038] After heating, the door handle will pop open again. If it can pop open, heating will stop; otherwise, the previous action will be repeated.

[0039] Furthermore, before opening the door handle, when the car detects that the ambient temperature is below 0 degrees Celsius, the system will prompt to turn on the hidden door handle heating function; conversely, if the vehicle detects that the ambient temperature is good, it will also prompt to turn off the hidden door handle heating function.

[0040] The door handle has three temperature levels: the first level ranges from 35 degrees Celsius to 45 degrees Celsius; the second level ranges from 46 degrees Celsius to 55 degrees Celsius; and the third level ranges from 56 degrees Celsius to 65 degrees Celsius. During initial heating, the temperature will gradually increase, and after reaching the highest level, it will gradually decrease until the door handle pops open, thereby lowering the temperature and protecting passengers' hands from burns.

[0041] The working voltage of the carbon fiber heating wire is less than or equal to 12V, which is much lower than the human body's safety voltage of 36V. It will not cause any personal injury and is extremely safe.

[0042] Under extremely cold conditions, if a vehicle is parked on an icy or snowy road for a long time, the door handle may be frozen due to the cover of snow or the ice after the snow melts, making it impossible to open the door. By using a hidden door handle with a carbon fiber heating wire, the carbon fiber heating wire is heated, the heat energy is diffused, and the ice layer absorbs heat, causing it to melt continuously and steadily, so that the ice layer between the door handle and the door is no longer firm, and the door handle drive motor can easily break the ice layer and open the door.

[0043] The heating function of the hidden carbon fiber door handle makes the method of breaking ice with the door handle safe and effective; compared to relying solely on motor torque to break ice, the carbon fiber door handle not only extends the life of the motor, but also makes breaking ice more convenient and quick.

[0044] Preferred embodiments of the present invention are:

[0045] A hidden door handle heating function is added to the car system. This function can be turned on and off, and will not be affected by the vehicle restart. When the vehicle detects that the ambient temperature may be below 0 degrees Celsius, the system will prompt to turn on the hidden door handle heating function; conversely, if the vehicle detects that the ambient temperature is good, it will also prompt to turn off the hidden door handle heating function, and this prompt function can be turned off.

[0046] The heating function of the carbon fiber hidden door handle should be associated with the automatic unlocking or remote control function. When the automatic unlocking or remote control function is working, the heating function of the carbon fiber hidden door handle needs to receive the feedback signal of the automatic unlocking or remote control function first, so as to determine whether to start working.

[0047] The working state of the carbon fiber hidden door handle is that the vehicle is powered on and the vehicle's intelligent door lock system can work normally. The car's BCM and MCU can detect, judge and issue reasonable instructions on whether the door lock system is on or off and the working state (whether to start the heating function of the carbon fiber heating plate of the hidden door handle).

[0048] There are two types of hidden carbon fiber door handles. One is that the carbon fiber heating sheet is in the middle and the door handle shaping material is pressed from both sides; the other is that the door handle is made of a full carbon fiber structure with the heating wires evenly distributed inside.

[0049] Carbon fiber hidden door handles need to be intelligently temperature controlled and freely adjustable. Since the carbon fiber hidden door handles need to be in direct contact with the hands of passengers, they can be higher when melting the ice layer, but after the ice layer melts, the temperature should be quickly lowered to avoid scalding the hands of passengers. The temperature gears of this door handle are divided into three levels. The first gear ranges from 35 degrees Celsius to 45 degrees Celsius; the second gear ranges from 46 degrees Celsius to 55 degrees Celsius; the third gear ranges from 56 degrees Celsius to 65 degrees Celsius. During the initial heating, the gears will be gradually increased. After reaching the highest gear, it is necessary to wait until the door handle pops open, and then the gear will be gradually lowered to reduce the temperature and protect the hands of passengers from being burned.

[0050] The working voltage of carbon fiber heating wire is generally less than or equal to 12V, which is much lower than the human body's safety voltage of 36V. It will not cause personal injury and is extremely safe.

[0051] The heating sheet made of carbon fiber heating wire is only 1mm thick, flexible and very thin, which is convenient for plastic film of door handles, and the carbon fiber heating sheet is resistant to high temperature.

[0052] Carbon fiber is a black body material with an electrothermal conversion efficiency of up to 98%, which is higher than that of metal heating. Carbon fiber heating sheets are used for electric heating door handles. They heat up quickly, evenly, safely, and can save electricity and extend battery life.

[0053] The carbon fiber heating sheet has good electrical conductivity and energy saving performance, and has no current impact. The use of traditional metal heating sheets has certain defects. When the metal heating sheet is turned on or off, it will generate maximum power due to the material of the metal itself, and its maximum power may be more than twice the additional power. The present invention is different from the metal heating sheet. The carbon fiber will not erode the current when it is heated, and it will always maintain the additional power even when it is turned off, and it will not exceed the maximum power when crushed, so its safety effect and energy saving effect are much higher than metal wires.

[0054] The 1mm thick carbon fiber heating sheet is composed of three layers of materials. The first layer is a cotton layer made of needle cotton or cotton paving, the second layer is a heating layer made of carbon fiber heating wire wrapped with silicone, and the third layer is a lining layer made of non-woven fabric. This structural mode makes the carbon fiber heating sheet have better insulation and waterproof properties, while also ensuring the heat preservation and softness of the carbon fiber heating sheet.

[0055] Under the same conditions of use, carbon fiber heating wire has a much longer service life than metal wire. Carbon fiber heating sheets are mainly made of non-metallic carbon, which can better meet the working conditions and ensure a longer service life of the heating element. The outer insulation shielding layer is made of silicone rubber, glass fiber wire and tinned copper wire, and has a long service life. It can basically guarantee that under normal use, it can be used until the vehicle is scrapped.

[0056] The carbon fiber heating sheet made of carbon fiber can emit 8um-15um far infrared when it is heated. The far infrared light wave can resonate with the human body. Under the resonance effect, the vibration of the water molecules in the skin layer of the body is first activated, and a series of reactions occur, which can improve the skin and subcutaneous tissue of the human body. The temperature of the cells rises, causing heat to be transferred from the inside to the outside, thereby improving the blood circulation of the human body, helping to eliminate human fatigue and restore human functions.

[0057] The above is only an explanation of the preferred embodiments of the present invention, and the above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0058] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A hidden door handle for an automobile, comprising a door handle body, characterized in that: The door handle body is integrated with a carbon fiber heating wire for heating and melting the ice layer between the door handle and the vehicle door.

2. The automobile hidden door handle as claimed in claim 1, characterized in that: The carbon fiber heating wire is an integrated carbon fiber heating sheet, and the carbon fiber heating sheet is arranged inside the door handle body.

3. The hidden door handle for automobile as claimed in claim 1, characterized in that: The door handle body is a full carbon fiber structure door handle integrated with carbon fiber heating wires.

4. The automobile hidden door handle as claimed in claim 1, characterized in that: A temperature sensor is integrated in the door handle body.

5. The automobile hidden door handle as claimed in claim 2, characterized in that: The door handle body comprises an outer surface layer of the door handle and an inner surface layer of the door handle, and the carbon fiber heating sheet is arranged between the outer surface layer of the door handle and the inner surface layer of the door handle.

6. The hidden door handle for automobile as claimed in claim 5, characterized in that: The edges of the door handle outer layer and the door handle inner layer are compression molded together to form an integral handle structure.

7. An ice-breaking method for a hidden door handle of an automobile as claimed in any one of claims 1 to 6, characterized in that: The ice-breaking method comprises the following steps: After receiving the command to open the door handle, the door handle will pop open in the usual way; If the door handle does not pop open normally, the signal that it did not pop open will be fed back to the vehicle control system, and the vehicle control system will send a heating instruction to the carbon fiber heating wire; After heating, the door handle will pop open again. If it can pop open, heating will stop; otherwise, the previous action will be repeated.

8. The ice-breaking method according to claim 7, characterized in that: Before the door handle is popped open, when the car detects that the ambient temperature is below 0 degrees Celsius, the system will prompt to turn on the hidden door handle heating function; conversely, if the vehicle detects that the ambient temperature is good, it will also prompt to turn off the hidden door handle heating function.

9. The ice-breaking method according to claim 7, characterized in that: The door handle has three temperature gears: the first gear ranges from 35 degrees Celsius to 45 degrees Celsius; the second gear ranges from 46 degrees Celsius to 55 degrees Celsius; and the third gear ranges from 56 degrees Celsius to 65 degrees Celsius. During initial heating, the gears will be gradually increased, and after reaching the highest gear, it will be necessary to gradually decrease the gears to lower the temperature until the door handle pops open.

10. The ice-breaking method according to claim 7, characterized in that: The working voltage of the carbon fiber heating wire is less than or equal to 12V.

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