Heating demisting device and vehicle

Abstract

The utility model relates to a heating demisting device and a vehicle. The heating demisting device comprises a positive electrode part, a negative electrode part and a heating part, the positive electrode part is used for being connected with a power source, the negative electrode part is adjacent to the positive electrode part, the first end of the heating part is electrically connected with the positive electrode part, and the second end of the heating part is electrically connected with the negative electrode part. According to the heating demisting device provided by the embodiment of the invention, the noise current of the heating demisting device can be reduced, the antenna effect of the heating element is reduced, and the electromagnetic coupling with the antenna is reduced, so that the influence on the antenna can be reduced, and the receiving performance of the antenna is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a heating defogging device and a vehicle. BACKGROUND

[0002] The heating defrosting device of the vehicle is to improve the field of vision of the driver, ensure the clarity of the front windshield or rearview mirror, especially in cold weather or rainy and snowy weather, prevent frost, ice or water vapor from condensing on the glass surface.

[0003] In the related art, the heating defrosting device is connected with the low-voltage power supply of the vehicle, and the heating defrosting device is prone to generate noise current, which will affect the performance of electronic components such as antennas. UTILITY MODEL CONTENT

[0004] The heating defogging device provided by the embodiments of the present application can reduce the noise current of the heating defogging device, reduce the electromagnetic coupling with electronic components such as antennas, and thus can reduce the influence on electronic components such as antennas, and ensure the performance of electronic components such as antennas, to at least partially solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a heating defogging device is provided, comprising:

[0006] A positive electrode part for connecting with a power supply;

[0007] A negative electrode part arranged adjacent to the positive electrode part;

[0008] A heating element, a first end of the heating element is electrically connected with the positive electrode part, and a second end of the heating element is electrically connected with the negative electrode part.

[0009] Optionally, the positive electrode part and the negative electrode part are located on the same side of the heating element.

[0010] Optionally, the distance between the positive electrode part and the negative electrode part is not greater than 5mm.

[0011] Optionally, the heating element comprises a first heating section and a second heating section, the positive electrode part, the first heating section, the second heating section and the negative electrode part are connected in sequence, and the distance between the first heating section and the second heating section is less than 15mm.

[0012] Optionally, the first heating section and the second heating section are twisted with each other.

[0013] Optionally, the heating element further comprises a third heating section, and the positive electrode part, the first heating section, the third heating section, the second heating section and the negative electrode part are connected in sequence.

[0014] Optionally, the heating defogging device further comprises a grounding wire, the grounding wire is electrically connected with the negative electrode part, the positive electrode part has a positive electrode connecting point connected with the power supply, the negative electrode part has a negative electrode connecting point connected with the grounding wire, the positive electrode connecting point and the negative electrode connecting point are arranged adjacently.

[0015] Optionally, a line connecting the positive electrode connecting point and the negative electrode connecting point is perpendicular to the positive electrode part and the negative electrode part.

[0016] Optionally, the heating defogging device further comprises a filter, the filter is electrically connected with the positive electrode part and the negative electrode part.

[0017] Optionally, the filter is electrically connected with the positive electrode connecting point and the negative electrode connecting point.

[0018] Optionally, a length of the grounding wire is not greater than 150 mm; and / or,

[0019] the grounding wire is used for connecting the negative electrode part and the vehicle body, an overlapping impedance of the grounding wire with the vehicle body is not greater than 50 mΩ; and / or,

[0020] a cross-sectional area of the grounding wire is not less than 16 mm 2 .

[0021] Optionally, the positive electrode part comprises a positive electrode body and a first insulation part, a first end of the heating element is electrically connected with the positive electrode body, the first insulation part is located between the positive electrode body and a second end of the heating element to insulate and separate the positive electrode body and the second end of the heating element; and / or,

[0022] the negative electrode part comprises a negative electrode body and a second insulation part, the second end of the heating element is electrically connected with the negative electrode body, the second insulation part is located between the negative electrode body and the first end of the heating element to insulate and separate the negative electrode body and the first end of the heating element.

[0023] Optionally, the heating element is used for being mounted in the same component as an antenna assembly, the heating element is arranged to be spaced apart from the antenna assembly.

[0024] According to a second aspect of the present application, a vehicle is provided, comprising a power supply and a heating defogging device as described above, the power supply is electrically connected with the positive electrode part.

[0025] Optionally, the vehicle further comprises an antenna assembly, wherein,

[0026] the power supply is connected with a first end of the positive electrode part, a second end of the positive electrode part is located between the antenna assembly and the first end of the positive electrode part; and / or,

[0027] The antenna assembly comprises a first antenna and a second antenna, and the first antenna and the second antenna are respectively located on two sides of the heating demisting device.

[0028] In the heating demisting device, the positive electrode part and the negative electrode part are arranged adjacently, and the distance between the positive electrode part and the negative electrode part is shortened, so that the loop area formed by the power supply, the positive electrode part, the heating element and the negative electrode part can be effectively reduced, the noise current of the heating demisting device can be reduced, the electromagnetic coupling with the electronic components such as the antenna can be reduced, and the influence on the electronic components such as the antenna can be reduced, so as to ensure the receiving performance of the electronic components such as the antenna.

[0029] Meanwhile, the two ends of the heating element are directly connected with the positive electrode part and the negative electrode part, that is, there is no other electronic component in the loop formed by the power supply, the positive electrode part, the heating element and the negative electrode part, which is beneficial to reduce the noise current of the heating demisting device, and the influence on the electronic components such as the antenna can be reduced, and the performance of the electronic components such as the antenna can be ensured.

[0030] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0032] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0033] Figure 1 is one of the structure schematic diagrams of the heating demisting device provided in the exemplary embodiment of the present disclosure;

[0034] Figure 2 is the second structure schematic diagram of the heating demisting device provided in the exemplary embodiment of the present disclosure;

[0035] Figure 3 is the third structure schematic diagram of the heating demisting device provided in the exemplary embodiment of the present disclosure;

[0036] Figure 4 is a partial structure schematic diagram of the heating demisting device provided in the exemplary embodiment of the present disclosure;

[0037] Figure 5 is the impedance characteristic curve of the filter provided in the exemplary embodiment of the present disclosure.

[0038] Reference Signs List:

[0039] 1. positive electrode part; 2. negative electrode part; 3. heating element; 4. ground wire; 5. filter element; 6. power supply; 7. antenna assembly; 11. positive electrode connection point; 12. positive electrode body; 13. first insulation part; 21. negative electrode connection point; 31. first heating section; 32. second heating section; 33. third heating section; 71. first antenna; 72. second antenna. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative effort belong to the protection scope of the present application.

[0041] According to a first aspect of the present application, referring to Figures 1 to 5 , the present application provides a heating defogging device.

[0042] Referring to Figure 1 , Figure 2 and Figure 3 , the heating defogging device comprises a positive electrode part 1, a negative electrode part 2 and a heating element 3, the positive electrode part 1 is used to be connected with a power supply 6, the negative electrode part 2 is arranged adjacent to the positive electrode part 1, a first end of the heating element 3 is electrically connected with the positive electrode part 1, and a second end of the heating element 3 is electrically connected with the negative electrode part 2.

[0043] It can be understood that, by arranging the positive electrode part 1 and the negative electrode part 2 adjacent to each other and shortening the distance between the positive electrode part 1 and the negative electrode part 2, the loop area formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2 can be effectively reduced, the noise current of the heating defogging device can be reduced, the electromagnetic coupling with electronic components such as an antenna can be reduced, and thus the influence on the electronic components such as the antenna can be reduced, and the performance of the electronic components such as the antenna can be ensured.

[0044] Meanwhile, the two ends of the heating element 3 are directly connected with the positive electrode part 1 and the negative electrode part 2, that is, there is no other electronic component in the loop formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, which is beneficial to reduce the noise current of the heating defogging device, and thus the influence on the electronic components such as the antenna can be reduced, and the performance of the electronic components such as the antenna can be ensured.

[0045] In some embodiments, the heating element 3 is used to be mounted in the same component as the antenna assembly, and the heating element is arranged spaced apart from the antenna assembly.

[0046] It can be understood that the positive electrode part 1 and the negative electrode part 2 are arranged adjacent to each other, and the distance between the positive electrode part 1 and the negative electrode part 2 is shortened, which can effectively reduce the loop area formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, can reduce the noise current of the heating defogging device, reduce the antenna effect of the heating element 3, reduce the electromagnetic coupling with the antenna assembly, and further can reduce the influence on the antenna assembly, and ensure the receiving performance of the antenna assembly. At the same time, the two ends of the heating element 3 are directly connected with the positive electrode part 1 and the negative electrode part 2, that is, there is no other electronic component in the loop formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, which is beneficial to reduce the noise current of the heating defogging device, and further can reduce the influence on the antenna assembly, and ensure the receiving performance of the antenna assembly.

[0047] In some examples, the negative electrode part 2 is arranged adjacent to the positive electrode part 1, which means that the negative electrode part 2 and the positive electrode part 1 are arranged on the same side of the heating element 3, or the negative electrode part 2 and the positive electrode part 1 are arranged on the adjacent sides of the heating element 3.

[0048] In some examples, the number of heating elements 3 can be at least two.

[0049] It can be understood that the heating element 3 is arranged on the glass of the vehicle, and the heating element 3 can heat the glass to achieve defogging. The antenna of the vehicle is also arranged on the glass of the vehicle.

[0050] It can be understood that the heating defogging wire and the patch antenna are designed together on the automobile windshield glass, which can achieve the effects of concealment, no change in shape and low cost. However, the conduction noise current from the low-voltage device power supply 6 end and the radiated electromagnetic wave from the vehicle interior space will cause the heating defogging wire to interfere with the receiving performance of the antenna. In the related art, the positive electrode part 1 and the negative electrode part 2 are arranged on opposite sides of the heating element 3, which results in a large area of the loop formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, so that the noise current of the heating defogging device is large, and the influence on the antenna is also large. In the present application, the positive electrode part 1 and the negative electrode part 2 are arranged adjacent to each other, and the distance between the positive electrode part 1 and the negative electrode part 2 is shortened, so as to reduce the loop area formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, and further reduce the noise current of the heating defogging device, reduce the antenna effect of the heating element 3, reduce the electromagnetic coupling with the antenna, avoid large influence on the antenna, and ensure the receiving performance of the antenna.

[0051] It can be understood that the heating demisting device in the prior art, the heating element 3 is not directly connected with the positive electrode part 1 and the negative electrode part 2, that is, there are other electronic components between the heating element 3 and the positive electrode part 1 or the negative electrode part 2, thereby causing a large noise current in the loop of the heating demisting device, which is easy to cause a large influence on the antenna. The application directly connects the two ends of the heating element 3 with the positive electrode part 1 and the negative electrode part 2, so that there are no other electronic components between the heating element 3 and the positive electrode part 1 or the negative electrode part 2, which is conducive to reducing the noise current in the loop of the heating demisting device, thereby reducing the influence on the antenna and ensuring the receiving performance of the antenna.

[0052] In some embodiments, the positive electrode part 1 and the negative electrode part 2 are located on the same side of the heating element 3.

[0053] It can be understood that arranging the positive electrode part 1 and the negative electrode part 2 on the same side of the heating element 3 is conducive to shortening the distance between the positive electrode part 1 and the negative electrode part 2, which can effectively reduce the loop area constituted by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, thereby reducing the noise current of the heating demisting device and reducing the influence on the antenna, and ensuring the receiving performance of the antenna.

[0054] In some embodiments, the distance between the positive electrode part 1 and the negative electrode part 2 is not greater than 5 mm.

[0055] It can be understood that if the distance between the positive electrode part 1 and the negative electrode part 2 is greater than 5 mm, the electromagnetic radiation of the electric loop of the heating demisting device is large, which is easy to cause a large influence on the antenna. Therefore, the application designs the distance between the positive electrode part 1 and the negative electrode part 2 to be not greater than 5 mm, which can reduce the electromagnetic radiation of the loop of the heating demisting device and reduce the influence on the antenna.

[0056] In some examples, the distance between the positive electrode part 1 and the negative electrode part 2 refers to the shortest distance between the positive electrode part 1 and the negative electrode part 2.

[0057] In some examples, the positive electrode part 1 and the negative electrode part 2 are parallel to each other, and the distance between the positive electrode part 1 and the negative electrode part 2 refers to the vertical distance between the positive electrode part 1 and the negative electrode part 2.

[0058] In some embodiments, referring to Figure 1 The heating element 3 includes a first heating section 31 and a second heating section 32, the positive electrode part 1, the first heating section 31, the second heating section 32 and the negative electrode part 2 are connected in sequence, and the distance between the first heating section 31 and the second heating section 32 is less than 15 mm.

[0059] It can be understood that if the distance between the first heating section 31 and the second heating section 32 is greater than 15 mm, the electromagnetic radiation of the electric circuit of the heating demisting device is large, which is easy to cause great influence on the antenna. Therefore, the distance between the first heating section 31 and the second heating section 32 is designed to be not greater than 15 mm in the application, which can reduce the electromagnetic radiation of the circuit of the heating demisting device and reduce the influence on the antenna.

[0060] Specifically, the first heating section 31 and the second heating section 32 are twisted with each other.

[0061] It can be understood that the first heating section 31 and the second heating section 32 are connected together by twisting, which effectively shortens the distance between the first heating section 31 and the second heating section 32, and thus can reduce the electromagnetic radiation of the circuit of the heating demisting device and reduce the influence on the antenna.

[0062] Specifically, referring to Figure 1 The heating element 3 further comprises a third heating section 33, and the positive electrode part 1, the first heating section 31, the third heating section 33, the second heating section 32 and the negative electrode part 2 are connected in sequence.

[0063] It can be understood that the first heating section 31 and the second heating section 32 are connected by the third heating section 33, which facilitates the connection of the first heating section 31 and the second heating section 32 and is conducive to reducing the cost.

[0064] In some embodiments, referring to Figure 1 The heating demisting device further comprises a grounding wire 4, the grounding wire 4 is electrically connected with the negative electrode part 2, the positive electrode part 1 has a positive electrode connecting point 11 connected with the power supply 6, the negative electrode part 2 has a negative electrode connecting point 21 connected with the grounding wire 4, and the positive electrode connecting point 11 and the negative electrode connecting point 21 are arranged adjacently.

[0065] It can be understood that the current of the heating demisting device flows along the positive electrode connecting point 11, the heating element 3, the negative electrode connecting point 21 and the grounding wire 4, and thus the positive electrode connecting point 11 and the negative electrode connecting point 21 are arranged adjacently, which is conducive to reducing the loop area of the heating demisting device, can reduce the noise current of the heating demisting device, reduces the antenna effect of the heating element 3, reduces the electromagnetic coupling with the antenna, and thus can reduce the influence on the antenna and ensure the receiving performance of the antenna.

[0066] In some embodiments, the line connecting the positive electrode connecting point 11 and the negative electrode connecting point 21 is perpendicular to the positive electrode part 1 and the negative electrode part 2.

[0067] It can be understood that the connection line between the positive connection point 11 and the negative connection point 21 is perpendicular to the positive electrode part 1 and the negative electrode part 2, and the distance between the positive connection point 11 and the negative connection point 21 is the shortest distance between the positive electrode part 1 and the negative electrode part 2, which effectively shortens the distance between the positive connection point 11 and the negative connection point 21, reduces the loop area of the heating demisting device, is conducive to reducing the noise current of the heating demisting device, reduces the antenna effect of the heating element 3, reduces the electromagnetic coupling with the antenna, and further reduces the influence on the antenna, and ensures the receiving performance of the antenna.

[0068] In some embodiments, referring to Figure 1 The heating demisting device further comprises a filter 5 electrically connected to the positive electrode part 1 and the negative electrode part 2.

[0069] It can be understood that the filter 5 can filter the current to reduce the noise current in the heating demisting device, and further reduce the influence of the heating demisting device on the antenna, and ensure the performance of the antenna.

[0070] In some embodiments, referring to Figure 1 and Figure 5 The filter 5 is electrically connected to the positive connection point 11 and the negative connection point 21.

[0071] It can be understood that the filter 5 is electrically connected to the positive connection point 11 and the negative connection point 21, so that the noise current at the power supply 6 flows out through the filter 5 and the ground wire 4 before flowing into the heating element 3, which can effectively prevent the noise current from flowing into the heating element 3, and is conducive to reducing the noise current in the heating demisting device and reducing the influence on the antenna.

[0072] In some examples, the filter 5 is, for example, a filter capacitor.

[0073] In some examples, the impedance characteristic of the filter 5 is lower than 50 mΩ in the FM frequency band, so as to better reduce the current noise in the loop.

[0074] In some embodiments, the length of the ground wire 4 is not greater than 150 mm, so as to avoid that the loop of the heating demisting device is too long.

[0075] In some embodiments, the ground wire 4 is used to connect the negative electrode part 2 and the vehicle body, and the lap impedance between the ground wire 4 and the vehicle body is not greater than 50 mΩ.

[0076] It can be understood that the lap impedance between the ground wire 4 and the vehicle body is designed to be not greater than 50 mΩ, which can provide a low-impedance return channel for the noise current, and is conducive to reducing the influence of the heating demisting device on the antenna.

[0077] In some embodiments, the cross-sectional area of the ground wire 4 is not less than 16 mm 2to reduce the resistance of the ground wire 4.

[0078] In some embodiments, referring to Figure 4 The positive electrode part 1 includes a positive electrode body 12 and a first insulation part 13. The first end of the heating element 3 is electrically connected to the positive electrode body 12, and the first insulation part 13 is located between the positive electrode body 12 and the second end of the heating element 3 to insulate and separate the positive electrode body 12 and the second end of the heating element 3.

[0079] It can be understood that by arranging the first insulation part 13 between the positive electrode body 12 and the second end of the heating element 3, the second end of the heating element 3 is not electrically connected to the positive electrode body 12, which ensures that the second end of the heating element 3 is only electrically connected to the negative electrode part 2, and ensures that when the positive electrode part 1 and the negative electrode part 2 are arranged adjacent to each other, the heating defogging device can work normally.

[0080] In some embodiments, the negative electrode part 2 includes a negative electrode body and a second insulation part. The second end of the heating element 3 is electrically connected to the negative electrode body, and the second insulation part is located between the negative electrode body and the first end of the heating element 3 to insulate and separate the negative electrode body and the first end of the heating element 3.

[0081] It can be understood that by arranging the second insulation part between the negative electrode body and the first end of the heating element 3, the first end of the heating element 3 is not electrically connected to the negative electrode body, which ensures that the first end of the heating element 3 is only electrically connected to the positive electrode part 1, and ensures that when the positive electrode part 1 and the negative electrode part 2 are arranged adjacent to each other, the heating defogging device can work normally.

[0082] According to a second aspect of the present application, the present application provides a vehicle including a power supply 6 and the above-mentioned heating defogging device. The power supply 6 is electrically connected to the positive electrode part 1.

[0083] It can be understood that by arranging the positive electrode part 1 and the negative electrode part 2 adjacent to each other and shortening the distance between the positive electrode part 1 and the negative electrode part 2, the loop area formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2 can be effectively reduced, the noise current of the heating defogging device can be reduced, the antenna effect of the heating element 3 is reduced, the electromagnetic coupling with the antenna is reduced, and thus the influence on the antenna can be reduced, and the receiving performance of the antenna is ensured.

[0084] At the same time, the two ends of the heating element 3 are directly connected to the positive electrode part 1 and the negative electrode part 2, that is, there is no other electronic component in the loop formed by the power supply 6, the positive electrode part 1, the heating element 3 and the negative electrode part 2, which is conducive to reducing the noise current of the heating defogging device, and thus the influence on the antenna can be reduced, and the receiving performance of the antenna is ensured.

[0085] In some embodiments, referring to Figure 1 The vehicle further includes an antenna assembly 7.

[0086] Specifically, the power supply 6 is connected with the first end of the positive electrode part 1, and the second end of the positive electrode part 1 is located between the antenna assembly 7 and the first end of the positive electrode part 1.

[0087] It can be understood that the current at the connection between the power supply 6 and the positive electrode part 1 is large, and the influence on the antenna is also large, so the antenna assembly 7 is designed to be away from the connection between the power supply 6 and the positive electrode part 1, which is beneficial to reduce the electromagnetic coupling of the heating element 3 to the antenna assembly 7, and ensures the performance of the antenna assembly 7.

[0088] Specifically, the antenna assembly 7 includes a first antenna 71 and a second antenna 72, and the first antenna 71 and the second antenna 72 are respectively located on both sides of the heating demisting device to improve the performance of the antenna assembly 7.

[0089] In some examples, the antenna assembly 7 is, for example, a patch antenna.

[0090] In some examples, the positive connection point 11, the negative connection point 21 and the filter capacitor are designed to be away from the side of the FM antenna (the positive connection point 11, the negative connection point 21 and the filter capacitor of the heating demisting device can also be designed to be away from the side of the AM antenna by adjusting the filter capacitor parameters). In this way, the antenna coupling of a specific frequency band can be reduced more specifically to improve the performance of the patch antenna.

[0091] In some examples, the vehicle can be a fuel automobile, a plug-in hybrid electric vehicle or a new energy vehicle, and the present application does not make specific limitations thereto.

[0092] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0093] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0094] The embodiments, implementation manners and related technical features of the present application can be combined, replaced with each other without conflict.

[0095] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiment, without departing from the technical solution content of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A heating and demisting device, characterized in that, include: The positive terminal is used to connect to the power source; The negative electrode portion is disposed adjacent to the positive electrode portion to shorten the distance between the positive electrode portion and the negative electrode portion; A heating element, wherein a first end of the heating element is electrically connected to the positive electrode portion, and a second end of the heating element is electrically connected to the negative electrode portion; The heating and demisting device also includes a grounding wire, which is electrically connected to the negative electrode. The positive electrode has a positive connection point connected to the power supply, and the negative electrode has a negative connection point connected to the grounding wire. The positive connection point and the negative connection point are arranged adjacent to each other.

2. The heating and demisting device according to claim 1, characterized in that, The positive electrode and the negative electrode are located on the same side of the heating element.

3. The heating and demisting device according to claim 1, characterized in that, The distance between the positive electrode and the negative electrode is no greater than 5 mm.

4. The heating and demisting device according to any one of claims 1 to 3, characterized in that, The heating element includes a first heating section and a second heating section. The positive electrode, the first heating section, the second heating section and the negative electrode are connected in sequence. The distance between the first heating section and the second heating section is less than 15mm.

5. The heating and demisting device according to claim 4, characterized in that, The first heating section and the second heating section are twisted together.

6. The heating and demisting device according to claim 4, characterized in that, The heating element further includes a third heating section, and the positive electrode, the first heating section, the third heating section, the second heating section and the negative electrode are connected in sequence.

7. The heating and demisting device according to any one of claims 1 to 3, characterized in that, The line connecting the positive electrode connection point and the negative electrode connection point is perpendicular to the positive electrode portion and the negative electrode portion.

8. The heating and demisting apparatus according to any one of claims 1 to 3, characterized in that, The heating and demisting device also includes a filter element, which is electrically connected to the positive electrode and the negative electrode.

9. The heating and demisting device according to claim 8, characterized in that, The filter is electrically connected to the positive terminal and the negative terminal.

10. The heating and demisting apparatus according to any one of claims 1 to 3, characterized in that, The length of the grounding wire shall not exceed 150mm; and / or, The grounding wire is used to connect the negative terminal and the vehicle body, and the bridging impedance between the grounding wire and the vehicle body is not greater than 50mΩ; and / or, The cross-sectional area of ​​the grounding wire shall not be less than 16mm². 2 .

11. The heating and demisting apparatus according to any one of claims 1 to 3, characterized in that, The positive electrode portion includes a positive electrode body and a first insulating portion. A first end of the heating element is electrically connected to the positive electrode body. The first insulating portion is located between the positive electrode body and a second end of the heating element, insulatingly separating the positive electrode body and the second end of the heating element; and / or The negative electrode portion includes a negative electrode body and a second insulating portion. The second end of the heating element is electrically connected to the negative electrode body. The second insulating portion is located between the negative electrode body and the first end of the heating element to insulatingly separate the negative electrode body and the first end of the heating element.

12. The heating and demisting apparatus according to any one of claims 1 to 3, characterized in that, The heating element is used to be installed on the same component as the antenna assembly, and the heating element and the antenna assembly are spaced apart.

13. A vehicle, characterized in that, It includes a power supply and a heating and demisting device as described in any one of claims 1 to 12, wherein the power supply is electrically connected to the positive electrode.

14. The vehicle according to claim 13, characterized in that, The vehicle also includes an antenna assembly, wherein... The power supply is connected to the first end of the positive electrode, and the second end of the positive electrode is located between the antenna assembly and the first end of the positive electrode; and / or The antenna assembly includes a first antenna and a second antenna, which are located on opposite sides of the heating and defogging device.

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