Self-defrosting heated glass

Abstract

The application discloses a kind of automatic defrosting heating glass, including fixed frame (1), first glass (4) and second glass (13) are installed in the fixed frame (1), an intermediate layer is formed between the first glass (4) and the second glass (13);First guide rail group (6) is installed on the outer side of the upper and lower ends of the first glass (4), first driving rod (3) is installed on the first guide rail group (6), and the first driving rod (3) forms a receiving cavity (19) inside;Second guide rail group is installed on the inner side of the upper and lower ends of the first glass (4), and second driving rod (23) is installed on the second guide rail group.The application can realize mobile contact heating defrosting, and can effectively reduce the degree of frosting, improve the defrosting efficiency, and the structure of the application can be stored after defrosting is completed, increase the service life of heating film and reduce the influence of heating film on the light transmittance of glass.

Description

Technical Field

[0001] The invention relates to the field of glass, in particular to automatic defrosting and heating glass. Background Art

[0002] Currently, a common method for defrosting glass is to cover the glass surface with a heating film. When powered, the heating film rapidly heats the glass surface, melting or removing frost. This method has been widely used in areas such as automotive windshields and architectural glass, effectively solving the problem of glass frosting. However, while this method can effectively defrost glass, it also has some significant drawbacks and issues.

[0003] First, the efficiency of the heating film during the defrost process is related to the ambient temperature and season. Defrosting is usually performed in winter, but in summer and other warm seasons, the defrost function is not required. Therefore, although the heating film has a high light transmittance, and most heating films claim to have a light transmittance of over 90%, it still results in a light blocking rate of 1% or less. This may not be ideal in high-temperature environments, because the heating film will still cover the glass surface when it is not needed, reducing the overall light transmittance and affecting the lighting effect. In addition, if some heating films are attached to the glass surface for a long time, it may cause a slight decrease in the appearance and transparency of the glass. Long-term exposure will make the glass more susceptible to aging, reducing its service life.

[0004] Secondly, most heating films are installed on the inside of the glass. While this installation method facilitates maintenance, it doesn't effectively address the problem of frost on the outside of the glass. This is especially true in extremely cold environments, where frost can form on the outside. The heating effect of the inner heating film is limited, making it difficult to quickly defrost the outside. Consequently, the efficiency of heating and melting the frost on the outside is significantly reduced, resulting in a poor user experience.

[0005] Furthermore, traditional heating films have a limited function, primarily serving to defrost the glass without providing additional protection, leading to the formation of frost on the exterior. Furthermore, existing heating films are typically permanently bonded to the glass, making removal and replacement difficult. This is especially true for heating films located within the glass interlayer, which are virtually impossible to remove and replace. This inconvenience can impact their lifespan and maintenance costs over time.

[0006] To sum up, while the existing heating film defrosting technology solves the problem of glass frosting, it has many shortcomings such as single function, shading, unreasonable installation position, and inconvenient disassembly and replacement. Therefore, there is an urgent need for a new type of heating defrosting device that can overcome these problems and provide a more flexible and efficient defrosting solution. Summary of the Invention

[0007] In order to solve the above problems, the application provides a kind of automatic defrosting heating glass, mobile contact heating defrosting can be realized, and frost degree can be effectively reduced, defrosting efficiency is improved, and the structure of the application can be stored after defrosting is completed, increase the service life of heating film and reduce the influence of heating film on the light transmittance of glass, effectively solve the deficiency in the prior art.

[0008] The application is realized by the following technical scheme: an automatic defrosting heating glass, comprising a fixed frame, a first glass and a second glass are installed in the fixed frame, and an intermediate layer is formed between the first glass and the second glass;

[0009] A first guide rail group is installed on the outer side of the upper and lower ends of the first glass, a first drive rod is installed on the first guide rail group, and a storage cavity is formed in the first drive rod;

[0010] A second guide rail group is installed on the inner side of the upper and lower ends of the first glass, and a second drive rod is installed on the second guide rail group;

[0011] A heating film is elastically wound at one end in the storage cavity of the first drive rod, the other end of the heating film passes through a transition slot on the fixed frame and extends into the intermediate layer and is fixedly connected with the second drive rod, and the inner and outer sides of the first glass are covered by the heating film;

[0012] A protective film is arranged at the outer end of the first glass and covers the heating film, one end of the protective film is fixedly connected with the first drive rod, and the other end of the protective film is fixedly connected with the bottom surface of a containing groove formed on the fixed frame, when the first drive rod and the second drive rod move towards the transition slot and approach, the protective film is stored in the containing groove, the heating film is elastically wound in the storage cavity of the first drive rod, and the heat is concentrated in the first drive rod by the wound heating film, so that the first drive rod serves as a heat concentrating piece.

[0013] As a preferred technical scheme, the first guide rail group and the second guide rail group are provided with reciprocating drive assemblies, the first drive rod and the second drive rod are slidably installed on the guide rail groups through a guide slider, the reciprocating drive assemblies are fixedly connected with the guide sliders respectively, and the guide sliders are driven to reciprocate along the corresponding guide rail groups by the reciprocating drive assemblies.

[0014] As a preferred technical scheme, the reciprocating driving assembly comprises a driving belt and driving wheels installed on both sides of the first guide rail set and the second guide rail set, the first guide rail set and the second guide rail set are both provided with an installation cavity, the driving wheels are rotatably installed on both sides of the installation cavity, the driving belt is installed between the two driving wheels, one of the driving wheels is provided with a micro driving motor, the micro driving motor drives the driving wheel to drive the reciprocating movement of the driving belt, and the driving belt is fixedly connected with the guide slider.

[0015] As a preferred technical scheme, the first guide rail set is provided with a first electromagnet on the side farthest from the transition slot, the second guide rail set is provided with a second electromagnet on the side farthest from the transition slot, and the first electromagnet and the second electromagnet are used to adsorb the guide sliders on both sides of the first driving rod and the second driving rod when powered on, so as to position the first driving rod and the second driving rod.

[0016] As a preferred technical scheme, the first electromagnet and the second electromagnet are controlled to be powered off or powered on in a wireless control mode, or are controlled to be powered off or powered on through a physical switch.

[0017] As a preferred technical scheme, the receiving cavity is provided with an elastic winding rod, one end of the heating film is wound on the elastic winding rod, the elastic winding rod is used to elastically wind the heating film, and the first driving rod is provided with an open slot corresponding to the position of the elastic winding rod, and the heating film passes through the open slot.

[0018] As a preferred technical scheme, the transition slot comprises a transition cavity, a first slot and a second slot, the first slot is arranged on the fixed frame at the outer end of the first glass, the second slot is arranged on the fixed frame at the inner end of the first glass, the first slot and the second slot are respectively communicated with the transition cavity, and a C-shaped structure is formed.

[0019] As a preferred technical scheme, the transition cavity is provided with a guide roller, the heating film enters from the first slot and extends out from the second slot, and the heating film is in rolling contact with the guide roller.

[0020] As a preferred technical scheme, the first driving rod is a metal rod, the first driving rod forms a heating contact surface relative to the outer side surface of the first glass, the heating contact surface is provided with heat-conducting silica gel, the first driving rod is in contact with the outer side surface of the first glass through the heat-conducting silica gel, and the first driving rod is used to absorb the heat after the heating film is wound and concentrate the heat.

[0021] As a preferred technical solution, the protective film is a transparent protective film, the heating film is made of ITO film or graphene film, the protective film is connected to the indoor power supply through a power cord, and is controlled to be opened or closed manually or automatically.

[0022] The beneficial effects of the present invention are as follows: the present invention arranges the heating films on the inner and outer sides of the first glass separately and combines them with a protective film. When the temperature is low, the heating films and the protective film can be used to cover and protect the outer side of the glass, thereby reducing the frost rate. Since the inner and outer sides are heated at the same time, when the heating films are powered on, the defrosting efficiency of the glass can be greatly improved.

[0023] When defrosting is required, first release the second driving rod and let the second driving rod move toward the transition notch first. At this time, the heating film can be continuously retracted into the first driving rod. When the second driving rod is displaced to the limit position, release the first driving rod. At this time, the first driving rod also moves toward the transition notch, and the heating film is further retracted into the first driving rod. During the displacement of the first driving rod, due to the retraction of the heating film caused by the displacement of the second driving rod, the retracted heating film concentrates heat in the first driving rod, so that the entire first driving rod is heated and the temperature rises rapidly. Since the first driving rod is in contact with the outer surface of the first glass, combined with the temperature and physical contact, the outer surface of the first glass can be effectively defrosted during the displacement of the first driving rod until the first driving rod stops after it reaches the limit position of the transition notch.

[0024] Since the defrosting action is completed, the first driving rod and the second driving rod are both located on one side of the transition groove, and the heating film is rolled up in the first driving rod. Therefore, after the entire defrosting action is completed, the heating film can be stored separately without affecting the light transmittance of the glass. At the same time, the separately stored protective film can avoid long-term exposure, that is, the aging problem caused by sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 A partial enlarged view of point A in the middle;

[0028] Figure 3 For the present invention Figure 1A partial enlarged view of point B in the middle;

[0029] Figure 4 It is a cross-sectional schematic diagram of the present invention;

[0030] Figure 5 For the present invention Figure 4 A partial enlarged view of point C in the middle;

[0031] Figure 6 For the present invention Figure 4 A partial enlarged view of point D in the middle;

[0032] Figure 7 This is a schematic structural diagram of the first driving rod of the present invention after it moves to the extreme position;

[0033] Description of reference numerals:

[0034] 1. Fixed frame; 4. First glass; 13. Second glass; 6. First guide rail assembly; 3. First drive rod; 19. Storage cavity; 23. Second drive rod; 22. Heating film; 21. Protective film; 10. Accommodating groove; 11. Guide slider; 5. Drive belt; 8. Installation cavity; 7. Micro drive motor; 12. First electromagnet; 18. Elastic winding rod; 17. Opening groove; 16. Transition cavity; 9. First notch; 14. Second notch; 15. Guide roller. DETAILED DESCRIPTION

[0035] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0036] Any feature disclosed in this specification (including any appended claims, abstract and drawings) may be replaced by other equivalent or similar features unless otherwise stated. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0037] like Figure 1 and Figure 4 As shown, an automatic defrosting heated glass of the present invention comprises a fixing frame 1, wherein a first glass 4 and a second glass 13 are mounted in the fixing frame 1, and an intermediate layer is formed between the first glass 4 and the second glass 13;

[0038] The first guide rail assembly 6 is mounted on the outer sides of the upper and lower ends of the first glass 4. The first guide rail assembly 6 is mounted on the first driving rod 3. The first driving rod 3 has a receiving cavity 19 formed inside.

[0039] It also includes a second guide rail group, which is installed on the inner side surfaces of the upper and lower ends of the first glass 4. The second guide rail group is installed with a second driving rod 23. The first guide rail group 6 and the second guide rail group have the same structure. The first driving rod 3 and the second driving rod 23 are located on the same side when in use and remain in a fixed position.

[0040] It also includes a heating film 22, one end of which is elastically wound in the receiving cavity 19 of the first driving rod 3, and the other end of the heating film 22 passes through the transition notch on the fixing frame 1 and extends into the middle layer and is fixedly connected to the second driving rod 23. The heating film 22 covers the inner and outer sides of the first glass 4. When in use, the heating film 22 is U-shaped as a whole, and the heating film 22 covers the inner and outer sides of the first glass 4. In this embodiment, the first glass 4 is the outer side glass, and the second glass 13 is the interior surface glass;

[0041] The protective film 21 is provided on the outer side of the first glass 4 and covers the heating film 22. One end of the protective film 21 is fixedly connected to the first driving rod 3, and the other end of the protective film 21 is fixedly connected to the bottom surface of the receiving groove 10 provided on the fixing frame 1. The protective film 21 covers the outside of the heating film 22 and serves as a protective member for the heating film 22. Since both the protective film 21 and the heating film 22 cover the outer side of the first glass 4, frosting of the glass can be effectively reduced. When the protective film 21 is wound up, it can be separately received in the receiving groove 10 along with the first driving rod 3.

[0042] When the first driving rod 3 and the second driving rod 23 move toward and approach the transition notch, the protective film 21 is received in the accommodating groove 10, and the heating film 22 is elastically rolled up in the receiving cavity 19 of the first driving rod 3 and uses the rolled up heating film 22 to concentrate heat in the first driving rod 3, so that the first driving rod 3 acts as a heat concentrator. When the first driving rod 3 rolls up the heating film 22, the heat of the heating film 22 will be transferred to the first driving rod 3, so that the first driving rod 3 becomes a heating element. Since the heat is concentrated and contacts the outer surface of the first glass 4, the purpose of defrosting can be better achieved. At the same time, the heating film 22 can be accommodated so that it is not exposed to sunlight, thereby increasing the service life and reducing the aging rate.

[0043] Among them, a reciprocating drive assembly is provided in the first guide rail group 6 and the second guide rail group, and the first drive rod 3 and the second drive rod 23 are both slidably installed on the guide rail group through a guide slider 11, and the reciprocating drive assembly is fixedly connected to the guide slider 11 respectively, and the guide slider 11 is driven by the reciprocating drive assembly to reciprocate along the corresponding guide rail group. After the heating film 22 is rolled up, if it needs to be used again, the reciprocating drive assembly is required to make the first drive rod 3 and the second drive rod 23 pull out the heating film 22 and reset it, that is, the reciprocating drive assembly can be used to reset the first drive rod 3 and the second drive rod 23 to their original positions.

[0044] like Figure 2 As shown, the reciprocating drive assembly includes a drive belt 5 and drive wheels installed on both sides of the first guide rail group 6 and the second guide rail group. The first guide rail group 6 and the second guide rail group are each provided with a mounting cavity 8. The drive wheels are rotatably installed on both sides of the mounting cavity 8. The drive belt 5 is installed between the two drive wheels. A micro drive motor 7 is installed on one of the drive wheels. The micro drive motor 7 drives the drive wheel to drive the reciprocating motion of the drive belt 5. The drive belt 5 is fixedly connected to the guide slider 11. When the drive belt 5 rotates back and forth, it can drive the guide slider 11 to move back and forth along the guide rail group.

[0045] Among them, Figure 3 and Figure 7 As shown, the first guide rail group 6 is equipped with a first electromagnet 12 on the side farthest from the transition slot, and the second guide rail group is equipped with a second electromagnet on the side farthest from the transition slot. When the first electromagnet 12 and the second electromagnet are energized, they are used to adsorb the guide sliders 11 on both sides of the first drive rod 3 and the second drive rod 23, so as to position the first drive rod 3 and the second drive rod 23. When it is necessary to position the first drive rod 3 and the second drive rod 23, the first electromagnet 12 and the second electromagnet are energized to adsorb the metal guide slider 11, so that the first drive rod 3 and the second drive rod 23 connected to the guide slider 11 are positioned and fixed.

[0046] In this embodiment, the first electromagnet 12 and the second electromagnet are both controlled to be powered on or off by wireless control, or by physical switches. When the wireless control method is used, a control host and a wireless transceiver module are set at the glass end, and the power is turned on or off by remote control. Of course, a physical control switch can also be directly set to control the power on and off. Of course, a more intelligent method can be used, that is, a temperature sensor can be set to fit the glass surface. When the temperature is detected to be very low, the heating film 22 can be turned on and the electromagnet can be automatically powered on and off.

[0047] Among them, Figure 6As shown, an elastic winding rod 18 is installed in the storage cavity 19, and one end of the heating film 22 is wound on the elastic winding rod 18. The heating film 22 is elastically wound by using the elastic winding rod 18. An open groove 17 is provided on the first driving rod 3 at a position corresponding to the elastic winding rod 18. The heating film 22 passes through the open groove 17. When the second driving rod 23 is displaced, the elastic winding rod 18 can be used to wind up the heating film 22. When the first driving rod 3 is displaced, the elastic winding rod 18 can also be continued to be used for winding.

[0048] like Figure 5 As shown, the transition notch includes a transition cavity 16, a first notch 9 and a second notch 14. The first notch 9 is arranged on the fixing frame 1 at the outer end of the first glass 4, and the second notch 14 is arranged on the fixing frame 1 at the inner end of the first glass 4. The first notch 9 and the second notch 14 are respectively communicated with the transition cavity 16 to form a C-shaped structure. Some sealing cotton can be set at the positions of the first notch 9 and the second notch 14. The sealing cotton is in contact with the front and back surfaces of the heating film 22 to achieve the purpose of cleaning the heating film 22 and reducing air flow. A rubber layer is provided on the side of the first driving rod 3 relative to the first notch 9. When the first driving rod 3 is displaced to the position of the first notch 9, the first driving rod 3 is attached to the first notch 9 to achieve the purpose of blocking the first notch 9. Figure 7 shown.

[0049] In order to make the winding of the heating film 22 smoother, in this embodiment, a guide roller 15 is installed in the transition chamber 16, and the heating film 22 enters from the first slot 9 and extends from the second slot 14, and the heating film 22 is in rolling contact with the guide roller 15.

[0050] In this embodiment, the first driving rod 3 is a metal rod, and the first driving rod 3 forms a heating contact surface relative to the outer side of the first glass 4. The heating contact surface is provided with heat-conducting silicone. The first driving rod 3 contacts the outer side of the first glass 4 through the heat-conducting silicone. The first driving rod 3 is used to absorb the heat after the heating film 22 is rolled up and concentrate the heat. Since the heat of the first driving rod 3 is concentrated and the first driving rod 3 is in physical contact with the first glass 4, the first driving rod 3 can maintain a defrosting mode of physical contact, so as to achieve the purpose of simultaneous heating and physical defrosting, thereby greatly improving the defrosting efficiency. Before the first driving rod 3 is displaced, the heating film 22 can cover the glass surface for heating to melt the frost on the glass surface, thereby achieving the purpose of heating and defrosting.

[0051] In the embodiment, the protective film 21 is a transparent protective film 21, the heating film 22 adopts an ITO film or a graphene film, the protective film 21 is connected to indoor power supply through a power line, and is controlled to be opened or closed in an artificial or automatic manner. In order to improve the tensile strength of the heating film 22, in the embodiment, a thickened portion can be arranged at the edge position of the heating film 22, or the thickness of the heating film 22 can be increased to solve the problem.

[0052] The defrosting process is as follows:

[0053] When defrosting is needed, the heating film 22 is opened, the first driving rod 3 and the second driving rod 23 are kept in a static positioning state, the inner and outer sides of the first glass 4 are heated by the heating film 22, and defrosting is first performed. In order to improve the defrosting efficiency, the second driving rod 23 can be first loosened and moved towards the transition slot, at this time the heating film 22 can be continuously retracted into the first driving rod 3. When the second driving rod 23 is displaced to the limit position, the first driving rod 3 is loosened, at this time the first driving rod 3 is also moved towards the transition slot, and the heating film 22 is further wound into the first driving rod 3. During the displacement of the first driving rod 3, the heating film 22 is wound due to the displacement of the second driving rod 23, so that the wound heating film 22 concentrates heat in the first driving rod 3, so that the whole first driving rod 3 is heated and quickly heated. Since the first driving rod 3 is in contact with the outer side of the first glass 4, combined with temperature and physical contact, the first driving rod 3 can effectively perform high-efficiency defrosting on the outer side of the first glass 4 during displacement, and stop when the first driving rod 3 is displaced to the limit position of the transition slot.

[0054] Since the defrosting is completed, the first driving rod 3 and the second driving rod 23 are located on one side of the transition slot, and the heating film 22 is wound in the first driving rod 3. Therefore, after the whole defrosting is completed, the heating film 22 can be individually stored, without affecting the light transmittance of the glass. At the same time, the individually stored protective film 21 can avoid the problem of accelerated aging caused by long-term exposure to sunlight. When it is needed to be used again, the first driving rod 3 and the second driving rod 23 are reset, and the next use is waited. If it is in a season with high temperature, the heating film 22 can be kept in a wound state.

[0055] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. An automatic defrosting heated glass, characterized in that: include: A fixed frame (1), wherein a first glass (4) and a second glass (13) are installed in the fixed frame (1), and an intermediate layer is formed between the first glass (4) and the second glass (13); A first guide rail assembly (6) is mounted on the outer surfaces of the upper and lower ends of the first glass (4); a first driving rod (3) is mounted on the first guide rail assembly (6); a receiving cavity (19) is formed inside the first driving rod (3); a second guide rail assembly mounted on the inner side surfaces of the upper and lower ends of the first glass (4), and a second driving rod (23) mounted on the second guide rail assembly; a heating film (22), one end of the heating film (22) being elastically wound in the receiving cavity (19) of the first driving rod (3), the other end of the heating film (22) passing through the transition notch on the fixing frame (1) and extending into the middle layer and being fixedly connected to the second driving rod (23), the heating film (22) covering the inner and outer sides of the first glass (4); A protective film (21) is arranged on the outer end of the first glass (4) and covers the heating film (22); one end of the protective film (21) is fixedly connected to the first driving rod (3), and the other end of the protective film (21) is fixedly connected to the bottom surface of the accommodating groove (10) opened on the fixing frame (1); when the first driving rod (3) and the second driving rod (23) move toward and approach the transition notch, the protective film (21) is accommodated in the accommodating groove (10), and the heating film (22) is elastically rolled up in the accommodating cavity (19) of the first driving rod (3) and uses the rolled-up heating film (22) to concentrate heat in the first driving rod (3), so that the first driving rod (3) serves as a heat concentrator.

2. The automatic defrosting heated glass according to claim 1, characterized in that: The first guide rail group (6) and the second guide rail group are both provided with a reciprocating drive assembly, the first drive rod (3) and the second drive rod (23) are both slidably mounted on the guide rail group via a guide slider (11), the reciprocating drive assembly is respectively fixedly connected to the guide slider (11), and the guide slider (11) is driven by the reciprocating drive assembly to reciprocate along the corresponding guide rail group.

3. The automatic defrosting heated glass according to claim 2, characterized in that: The reciprocating drive assembly comprises a drive belt (5) and drive wheels installed on both sides of a first guide rail group (6) and a second guide rail group, wherein the first guide rail group (6) and the second guide rail group are each provided with a mounting cavity (8), the drive wheels are rotatably mounted on both sides of the mounting cavity (8), the drive belt (5) is installed between the two drive wheels, a micro drive motor (7) is installed on one of the drive wheels, and the micro drive motor (7) drives the drive wheel to drive the reciprocating motion of the drive belt (5), and the drive belt (5) is fixedly connected to the guide slider (11).

4. The automatic defrosting heated glass according to claim 1, characterized in that: The first guide rail group (6) is provided with a first electromagnet (12) on the side farthest from the transition slot, and the second guide rail group is provided with a second electromagnet on the side farthest from the transition slot. When the first electromagnet (12) and the second electromagnet are energized, they are used to adsorb the guide sliders (11) on both sides of the first drive rod (3) and the second drive rod (23), thereby positioning the first drive rod (3) and the second drive rod (23).

5. The automatic defrosting heated glass according to claim 4, characterized in that: The first electromagnet (12) and the second electromagnet are both powered on or off by wireless control, or powered on or off by a physical switch.

6. The automatic defrosting heated glass according to claim 1, characterized in that: An elastic winding rod (18) is installed in the storage cavity (19), one end of the heating film (22) is wound on the elastic winding rod (18), and the heating film (22) is elastically wound by using the elastic winding rod (18). An opening groove (17) is provided on the first driving rod (3) at a position corresponding to the elastic winding rod (18), and the heating film (22) passes through the opening groove (17).

7. The automatic defrosting heated glass according to claim 1, characterized in that: The transition notch comprises a transition cavity (16), a first notch (9) and a second notch (14); the first notch (9) is arranged on a fixed frame (1) at the outer end of the first glass (4); the second notch (14) is arranged on a fixed frame (1) at the inner end of the first glass (4); the first notch (9) and the second notch (14) are respectively communicated with the transition cavity (16) to form a C-shaped structure.

8. The automatic defrosting heated glass according to claim 7, characterized in that: A guide roller (15) is installed in the transition chamber (16), the heating film (22) enters from the first notch (9) and extends from the second notch (14), and the heating film (22) is in rolling contact with the guide roller (15).

9. The automatic defrosting heated glass according to claim 1, characterized in that: The first driving rod (3) is a metal rod. The first driving rod (3) forms a heating contact surface relative to the outer side surface of the first glass (4). The heating contact surface is provided with heat-conducting silica gel. The first driving rod (3) contacts the outer side surface of the first glass (4) through the heat-conducting silica gel. The first driving rod (3) is used to absorb the heat of the heating film (22) after it is rolled up and concentrate the heat.

10. The automatic defrosting heated glass according to claim 1, characterized in that: The protective film (21) is a transparent protective film (21), the heating film (22) is an ITO film or a graphene film, the protective film (21) is connected to an indoor power supply via a power cord, and is controlled to be opened or closed manually or automatically.

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