Heating assembly for deicing embedded automobile door handle

Abstract

The utility model discloses a heating assembly for deicing an embedded automobile door handle, which is characterized in that the heating assembly is of a flat structure and comprises an electric heating layer located in the middle, an insulating film layer and an elastic heat insulation layer, the insulating film layer and the elastic heat insulation layer are compounded on the two sides of the electric heating layer, and the heating assembly is of a closed annular structure. The section of the heating assembly is of an L-shaped structure, and the heating assembly is divided into a front heating part and a side heating part. The deicing efficiency of the door handle can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, and in particular to a heating component for deicing an embedded automobile door handle. Background Art

[0002] With the development of automobile technology, hidden door handles that can be extended and retracted have begun to be used in some high-end models. Although hidden door handles can reduce the wind resistance of the car during driving and improve the appearance quality of the whole car, they are often frozen due to accumulated water after rain or snow in cold areas. Once the door handle is frozen, it is difficult to extend the door handle when the vehicle is unlocked, making it impossible for the driver to enter the car.

[0003] In response to the above problems, many automobile companies have designed hidden door handle structures with defrosting functions, such as the patent document with publication number CN215108174U, which discloses a car door and a car with hidden door handles. The hidden door handle of the present invention includes a door body, a door handle arranged on the door body, and a driving part that can drive the door handle to extend or retract relative to the door body, and the door body has a sealing area that can abut against the retracted door handle and surround the door handle. The sealing area is generally located on the door outer panel sheet metal in the door body, and specifically is the outer edge of a through-hole structure formed on the door outer panel sheet metal for the door handle to be retracted and extended. An electric heating part is provided on the door body where the sealing area is located, and the electric heating part is powered by external power to heat the sealing area.

[0004] The electric heating part in this technical solution is a conventional PTC heating body, which has a relatively simple structure and has the following defects: 1. When the temperature generated by the heating body is high, the heat is easily transferred to the inside of the door, affecting the normal operation of the internal components of the door; if the temperature generated by the heating body is low, the ice cannot be thawed quickly; 2. The effective heating area is small, resulting in a slow de-icing speed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a heating component for deicing an embedded automobile door handle, which can significantly improve the efficiency of deicing the door handle.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heating component for deicing an embedded automobile door handle is characterized in that the heating component is a flat structure and comprises an electric heating layer in the middle and an insulating film layer and an elastic heat insulating layer composited on both sides of the electric heating layer.

[0008] Preferably, the heating component is a closed annular structure, the cross-section of the heating component is an L-shaped structure, and is divided into a front heating part and a side heating part.

[0009] Preferably, the electric heating layer is an alloy heating film, which is formed by compounding an ultra-thin alloy on a PET film, and the ultra-thin alloy is a circuitous extension structure on the PET film.

[0010] Preferably, the electric heating layer is connected to an NTC temperature control tube.

[0011] Preferably, the insulating film layer is any one of a PET film, a PP film or a PI film, and is compounded to the front side of the electric heating layer by glue.

[0012] Preferably, the elastic heat-insulating layer is foam cotton and is bonded to the back side of the electric heating layer by glue.

[0013] The advantages of the utility model are:

[0014] 1. After the heating component is assembled into the door handle structure, the elastic heat insulation layer can insulate the electric heating layer from the inside of the door, preventing the heat generated by the electric heating layer from affecting the operation of the internal components of the door, so that the electric heating layer can generate a higher temperature and improve the defrosting efficiency. Secondly, it can also play an elastic extrusion function to achieve a sealing effect;

[0015] 2. The insulating film layer can insulate the car door from the electric heating layer;

[0016] 3. The flat structure can increase the heat generation area of ​​the heating component and improve the thawing efficiency;

[0017] 4. The front heating part combined with the side heating part can be arranged at different positions around the door handle to heat and defrost multiple positions, further improving the thawing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a heating assembly for deicing an embedded automobile door handle provided in this embodiment;

[0019] Figure 2 A partial cross-sectional view of a heating assembly for deicing an embedded automobile door handle provided in this embodiment;

[0020] Figure 3 A schematic diagram of the arrangement of the ultra-thin alloy on the PET film in the front heating section provided in this embodiment;

[0021] Figure 4 Schematic diagram of this embodiment in the installation structure. DETAILED DESCRIPTION

[0022] Combination Figures 1 to 4The utility model is further described on the heating component for deicing the embedded automobile door handle.

[0023] A heating component for deicing an embedded automobile door handle is characterized in that the heating component is a flat structure and includes an electric heating layer 4 located in the middle and an insulating film layer 3 and an elastic heat insulating layer 5 composited on both sides of the electric heating layer 4.

[0024] Specifically, the heating assembly is a closed annular structure, which is arranged to imitate the outer contour of the door handle 6. The cross section of the heating assembly is an L-shaped structure, and is divided into a front heating part 1 and a side heating part 2. Figure 4 As shown, in the installation structure of the hidden door handle 6, the front heating part 1 is directly attached to the inner wall of the door outer panel 8, and is arranged around the through hole 81 on the door outer panel 8 for the door handle 6 to enter and exit, so as to heat the outer wall of the door outer panel 8 corresponding to the door handle 6; and the side heating part 2 can extend into the gap 9 to heat the gap 9 which is easy to accumulate water and freeze. The gap 9 is formed by the door handle 6 being telescopically installed in the base 7 in the door assembly, that is, there is a mounting groove 71 on the side wall of the base 7 facing the door outer panel 8, the door handle 6 is arranged in the mounting groove 71, and the driving component arranged between the base 7 and the door handle 6 drives the door handle 6 to extend or retract into the mounting groove 71, and the outer wall of the door handle 6 is separated from the inner wall of the mounting groove 71, so as to form the gap 9. The telescopic installation structure of the door handle 6 in the base 7 is a prior art, and an existing structure in the prior art can be selected. Therefore, this embodiment does not provide a detailed introduction to the specific assembly structure between the base 7, the door handle 6 and the drive assembly.

[0025] The electric heating layer 4 is an alloy heating film, which is formed by combining an ultra-thin alloy 42 on a PET film 41 and has a certain degree of flexibility. The ultra-thin alloy 42 in the front heating part 1 and the side heating part 2 is a circuitous extension structure on the PET film 41. Figure 3 As shown, the front heating part 1 and the side heating part 2 form a flat structure to increase the heat generation area of ​​the heating component. Figure 3 This is the arrangement structure of the ultra-thin alloy 42 on the pet film 41 in the front heating part 1. The arrangement structure of the ultra-thin alloy in the side heating part 2 can also refer to the arrangement structure of the ultra-thin alloy in the front heating part 1.

[0026] In the installation structure, the ultra-thin alloy 42 in the electric heating layer 4 is connected to the vehicle power supply through a wire to receive power from the vehicle power supply.

[0027] The ultra-thin alloy 42 in the front heating part 1 and the side heating part 2 can be in series structure, or can be independent of each other and connected to the vehicle power supply through their own wires. In this embodiment, the two are independent of each other and can be heated separately according to needs.

[0028] The electric heating layer 4 is connected to an NTC temperature control tube to effectively control the temperature of the heating component.

[0029] The insulating film layer 3 is any one of a PET film, a PP film or a PI film, and is compounded on the front of the electric heating layer 4 by glue. The insulating film layer 3 can withstand a temperature of 120°C to ensure that the electric heating layer 4 can effectively generate heat. In the installation structure, the insulating film layer 3 is attached to the inner wall of the door outer panel 8 to insulate the electric heating layer 4 from the door outer panel 8 to avoid the problem of the door outer panel 8 being charged.

[0030] The elastic heat-insulating layer 5 is foam cotton, and is compounded to the back of the electric heating layer 4 by glue. In the installation structure, the elastic foam layer can separate the electric heating layer 4 from the installation surface for the heating component, that is, the frame 10, to achieve a thermal insulation effect, so that the heat generated by the electric heating layer 4 will not be transferred to the inside of the door and affect the normal operation of other components in the door assembly, and at the same time, it can also avoid the problem of heat loss due to heat transfer to the inside. Therefore, the electric heating layer 4 can generate a higher temperature and transfer the temperature in the target direction to enhance the thawing effect; secondly, the elastic heat-insulating layer 5 also has an elastic pressing effect, so that the electric heating layer 4 can fit tightly on the door outer panel 8, which can not only achieve a sealing effect, but also effectively transfer heat to the door outer panel 8 or the gap 9.

[0031] Unless otherwise specified, in the present utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or position relationship in the present utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0032] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A heating assembly for deicing an embedded automobile door handle, characterized by: The heating assembly is a flat structure, and includes an electric heating layer in the middle and an insulating film layer and an elastic heat-insulating layer compounded on both sides of the electric heating layer; The heating component is a closed annular structure, the cross section of the heating component is an L-shaped structure, and is divided into a front heating part and a side heating part.

2. The heating assembly for deicing an embedded automobile door handle according to claim 1, characterized in that: The electric heating layer is an alloy heating film, which is formed by compounding an ultra-thin alloy on a PET film, and the ultra-thin alloy is a circuitous extension structure on the PET film.

3. The heating assembly for deicing an embedded automobile door handle according to claim 1, characterized in that: The electric heating layer is connected with an NTC temperature control tube.

4. The heating assembly for deicing an embedded automobile door handle according to claim 1, characterized in that: The insulating film layer is any one of a PET film, a PP film or a PI film, and is compounded on the front side of the electric heating layer by glue.

5. The heating assembly for deicing an embedded automobile door handle according to claim 4, characterized in that: The elastic heat-insulating layer is foam cotton and is compounded to the back side of the electric heating layer by glue.

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