CN118911571A - Electrochromic intelligent window and color change control method thereof - Google Patents

Abstract

The present invention belongs to the technical field of electrochromic devices, and provides an electrochromic smart window and a color change control method thereof, including a window frame and a middle partition frame; two groups of glass bodies, respectively arranged in the window frame, and the middle partition frame is located between the two groups of glass bodies, the glass body includes two groups of conductive glass, gel electrolyte is sandwiched between the two groups of conductive glass and the window frame and the middle partition frame, and electrochromic films are respectively arranged on the opposite side walls of the two groups of conductive glass; two groups of glass, air cavities are arranged between the glass and the conductive glass, the window frame, and the middle partition frame; an air flow control component includes a plurality of second openings respectively arranged on the two opposite side walls of the middle partition frame, the second openings are connected to the air cavity, and a connection control mechanism is arranged in the middle partition frame. The present invention can intelligently adjust the light transmission and heat transmission properties of the electrochromic glass, and realize automatic control of the light and heat entering the house.

Description

An electrochromic smart window and a color change control method thereof

Technical Field

The present invention belongs to the technical field of electrochromic devices, and in particular relates to an electrochromic smart window and a color change control method thereof.

Background Art

In the field of electrochromic device technology, electrochromic materials have bistable properties. By placing the material in different electronic states, a reversible redox reaction occurs under electrochemical action, causing the optical properties of the material to change. The external manifestation is that the color of the material changes cyclically with the change of voltage, changing back and forth between a transparent state and a colored state, causing the light transmittance to change accordingly. Therefore, as one of the most promising smart materials at present, electrochromic materials have potential huge application prospects and commercial value with their excellent electrical, optical and electrochromic properties.

At present, the most common application of electrochromic materials is electrochromic windows, which control the amount of incident light by adjusting the light transmittance of electrochromic materials. It is easy to control the amount of incident light inside a building to achieve the purpose of light regulation and energy saving. However, the existing electrochromic window adjustment mode is relatively single and cannot achieve a balance between heat insulation and light isolation.

Summary of the invention

The purpose of the present invention is to provide an electrochromic smart window and a color change control method thereof to solve the above-mentioned problems, to achieve intelligent adjustment of the light transmittance and heat transmittance of the electrochromic glass, and to realize the purpose of automatically regulating the light and heat entering the house.

To achieve the above object, the present invention provides the following solution: an electrochromic smart window, comprising:

A window frame, wherein a middle partition frame is fixedly connected to the window frame;

Two groups of glass bodies, the two groups of glass bodies are respectively arranged in the window frames, and the middle partition frame is located between the two groups of glass bodies, the glass bodies include two groups of conductive glass, gel electrolyte is sandwiched between the two groups of conductive glass and the window frames and the middle partition frame, and electrochromic films are respectively arranged on opposite side walls of the two groups of conductive glass;

Two groups of glass, the two groups of glass are located on both sides of the middle partition frame, and an air cavity is provided between the glass, the conductive glass, the window frame and the middle partition frame;

An air flow control component, the air flow control component comprising a plurality of second openings respectively provided on two opposite side walls of the middle partition frame, the second openings being connected to the air cavity, a connection control mechanism being provided in the middle partition frame, the connection control mechanism being used to control the connection between the plurality of second openings;

A control unit is arranged on the window frame, and is used to adjust the light transmission and heat transmission performance of the glass body and control the operation of the communication control mechanism.

Preferably, the control unit comprises a light sensor arranged on the window frame, and the light sensor is arranged on a side of the window frame away from the interior of the house.

Preferably, the control unit further includes a temperature sensor arranged in the air cavity.

Preferably, the control unit adjusts the light transmittance and heat transmittance of the electrochromic film by adjusting the voltage applied to the glass body.

Preferably, the control unit controls the voltage applied to the glass body to be set to three levels of 1V, -0.2V and -1V.

Preferably, the connection control mechanism includes a slide groove provided in the middle partition frame, a plurality of second openings on two opposite side walls of the middle partition frame are respectively connected to the slide groove, a sliding plate is slidably connected in the slide groove, a plurality of first openings are provided on the sliding plate, a position adjustment member is provided between the middle partition frame and the sliding plate, the position adjustment member is used to drive the sliding plate to slide in the slide groove, when the sliding plate slides to the point where the first opening coincides with the second openings on both sides of the middle partition frame, the air cavities on both sides of the middle partition frame are connected.

Preferably, the position adjustment member includes a servo motor fixedly connected in the middle partition frame, a screw rod is coaxially fixedly connected to the output shaft of the servo motor, the axial direction of the screw rod is parallel to the sliding direction of the sliding plate, a threaded sleeve is fixedly connected to the side of the sliding plate close to the servo motor, and the threaded sleeve is transmission-connected to the screw rod.

A control method for an electrochromic smart window, the control process comprising:

The control unit controls the two sets of glass bodies to be in a state of strong light transmittance and heat transmittance according to external light intensity and temperature factors. When the external environment temperature is high and the light intensity is strong, the control unit controls the two sets of glass bodies to be in a state of strong light transmittance and heat transmittance.

When the external environment temperature is low and the light intensity is weak, the control unit controls the two sets of glass bodies to be in a state of weak light transmittance and heat transmittance;

When the external environment temperature is low but the light is strong, the control unit controls the outer electrochromic film of a group of glass bodies to be in a state of strong light transmittance and heat transmittance, and controls the remaining glass bodies to be in a state of weak light transmittance and heat transmittance, thereby weakening the strong light exposure to the greatest extent. At the same time, the sunlight heats the air cavity through the glass bodies with strong light transmittance and heat transmittance. At the same time, the control unit drives the connection control mechanism to connect the air cavities on both sides of the middle partition frame, and the air flow makes the internal air of the two air cavities heat up, which has a heat-insulating effect on the room.

Compared with the prior art, the present invention has the following advantages and technical effects: the main function of the middle partition frame is to divide the window frame into two areas, so as to realize different adjustment modes of the glass body in the upper and lower areas; the glass body is formed of a conductive glass, an electrochromic film and a gel electrolyte to form an integral device, and the light transmittance and heat transmittance of the electrochromic film are changed by receiving different voltages. In this embodiment, a total of four groups of glass bodies are provided, and various combinations of adjustments can be performed; the main function of the air cavity is to improve the heat insulation capacity of the smart window of the present invention, and at the same time, by changing the temperature of the air in the air cavity, it plays a role in assisting in regulating the indoor temperature. At the same time, two groups of conductive glass and one group of glass form a three-layer structure, which can improve the sound insulation capacity of the smart window of the present invention to a certain extent; the main function of the second opening is to realize the air flow in the air cavity on both sides of the middle partition frame; the main function of the connection control mechanism is to control the air flow between the two air cavities. On the whole, the present invention can intelligently adjust the light transmittance and heat transmittance of the electrochromic glass through the control unit, and at the same time, by changing the light transmittance and heat transmittance of different electrochromic films, the air temperature in the air cavity is adjusted to achieve the purpose of automatically regulating the light and heat entering the house.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

FIG1 is a schematic diagram of a smart window of the present invention;

FIG2 is a schematic structural diagram of a glass body of the present invention;

FIG3 is a top view of the intermediate frame of the present invention;

FIG4 is a schematic diagram of a connection control mechanism of the present invention;

FIG5 is a schematic diagram of a second embodiment of the present invention;

FIG6 is a schematic diagram of an electrical connector according to a second embodiment of the present invention;

FIG7 is a schematic diagram of a second cross crack of the present invention;

FIG8 is a schematic diagram of a first cross crack of the present invention;

Among them, 1. glass body; 11. conductive glass; 12. electrochromic film; 2. first cross crack; 3. air cavity; 4. window frame; 5. temperature sensor; 6. light sensor; 7. middle partition frame; 8. opening and closing window frame; 9. servo motor; 10. screw rod; 13. threaded sleeve; 14. slide groove; 15. sliding plate; 16. first opening; 17. second opening; 18. pole; 19. corrugated sealing sleeve; 20. electrode groove; 21. sealing gasket; 22. elastic plate; 23. second cross crack; 24. gel electrolyte; 25. glass.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1:

1 to 4 , the present invention provides an electrochromic smart window, comprising:

A window frame 4, wherein a middle partition frame 7 is fixedly connected to the window frame 4;

Two groups of glass bodies 1, the two groups of glass bodies 1 are respectively arranged in the window frame 4, and the middle partition frame 7 is located between the two groups of glass bodies 1, the glass body 1 includes two groups of conductive glass 11, a gel electrolyte 24 is sandwiched between the two groups of conductive glass 11 and the window frame 4 and the middle partition frame 7, and electrochromic films 12 are respectively arranged on the opposite side walls of the two groups of conductive glass 11;

Two groups of glass 25, the two groups of glass 25 are located on both sides of the middle partition frame 7, and an air cavity 3 is provided between the glass 25 and the conductive glass 11, the window frame 4, and the middle partition frame 7;

The air flow control component includes a plurality of second openings 17 respectively provided on two opposite side walls of the middle partition frame 7, the second openings 17 are connected to the air cavity 3, and a connection control mechanism is provided in the middle partition frame 7, the connection control mechanism is used to control the connection between the plurality of second openings 17;

A control unit is arranged on the window frame 4 and is used to adjust the light transmission and heat transmission performance of the glass body 1 and to control the operation of the communication control mechanism.

The main function of the middle partition frame 7 is to divide the window frame 4 into two areas, so as to realize different adjustment modes of the glass body 1 in the upper and lower areas; the glass body 1 is formed as an integral device by a conductive glass 11, an electrochromic film 12 and a gel electrolyte 24, and the light transmittance and heat transmittance of the electrochromic film 12 are changed by receiving different voltages. In this embodiment, a total of four groups of glass bodies 1 are provided, which can be adjusted in various combinations; the main function of the air cavity 3 is to improve the heat insulation capacity of the smart window of the present invention, and at the same time, by changing the temperature of the air in the air cavity 3, it plays a role in assisting in regulating the indoor temperature. At the same time, two groups of conductive glass 11 and one group of glass 25 form a three-layer structure, which can improve the sound insulation capacity of the smart window of the present invention to a certain extent; the main function of the second opening 17 is to realize the air flow in the air cavity 3 on both sides of the middle partition frame 7; the main function of the connection control mechanism is to control the air flow between the two air cavities 3. On the whole, the present invention can intelligently adjust the light transmittance and heat transmittance of the electrochromic glass through the control unit. At the same time, by changing the light transmittance and heat transmittance of different glass bodies, the air temperature in the air cavity is adjusted to achieve the purpose of automatically controlling the light and heat entering the house.

To further optimize the solution, ordinary glass is selected for glass 25.

Specifically, in this embodiment, the preparation method of the electrochromic film 12 is as follows: first, a tungsten source, a hydrogen peroxide solution, an inorganic acid and water are mixed to obtain an electrodeposition solution; then, a conductive glass is used as a working electrode, and a tungsten oxide film is deposited on the conductive glass 11 by pulse electrochemical deposition to obtain a porous tungsten oxide film that can independently control visible light and near-infrared, thereby forming an electrochromic film 12 on the surface of the conductive glass 11.

In a further optimized solution, the control unit includes a light sensor 6 arranged on the window frame 4, and the light sensor 6 is arranged on a side of the window frame 4 away from the interior of the house.

As shown in FIG. 1 , the light sensor 6 is arranged outside the house to monitor the outdoor light intensity.

According to a further optimized solution, the control unit further includes a temperature sensor 5 arranged in the air cavity 3 .

The main function of the temperature sensor 5 is to monitor the air temperature in the air cavity 3 .

According to a further optimization scheme, the control unit adjusts the light transmission and heat transmission properties of the electrochromic film 12 by adjusting the voltage applied to the glass body 1 .

To further optimize the solution, the control unit controls the voltage applied to the glass body 1 to be set to three levels of 1V, -0.2V and -1V.

In a further optimized solution, the control unit, the light sensor 6 and the temperature sensor 5 are powered by household electricity.

When a voltage of 1V is applied to the glass body 1 prepared according to the above method, the electrochromic film 12 is in a faded state, has a high transmittance to visible light and near-infrared, and has strong light transmittance and heat transmittance; when a voltage of -1V is applied, the electrochromic film 12 is in a colored state, has a high blocking rate to visible light and near-infrared, and has poor light transmittance and heat transmittance. When a voltage of -0.2V is applied, the electrochromic film 12 has a high transmittance to visible light and a high blocking rate to near-infrared. At this time, the light transmittance is strong and the heat transmittance is poor, which can isolate heat while allowing light to shine into the house.

A further optimized solution is provided, in which the connection control mechanism includes a slide groove 14 provided in the middle partition frame 7, a plurality of second openings 17 on two opposite side walls of the middle partition frame 7 are respectively connected with the slide groove 14, a sliding plate 15 is slidably connected in the slide groove 14, a plurality of first openings 16 are provided on the sliding plate 15, a position adjustment member is provided between the middle partition frame 7 and the sliding plate 15, the position adjustment member is used to drive the sliding plate 15 to slide in the slide groove 14, when the sliding plate 15 slides to the point where the first opening 16 coincides with the second openings 17 on both sides of the middle partition frame 7, the air cavities 3 on both sides of the middle partition frame 7 are connected.

As shown in Fig. 3 and Fig. 4, the intervals between two adjacent second openings 17 at the upper part of the middle partition frame 7, between two adjacent second openings 17 at the lower part of the middle partition frame 7, and between two adjacent first openings 16 are the same, and the interval distance needs to be greater than the length of the first opening 16. When the air cavities 3 at the upper and lower sides of the middle partition frame 7 need to be connected, the sliding plate 15 can be pulled by the position adjustment member so that the first opening 16 on the sliding plate 15 gradually overlaps with the second opening 17, so that the air in the lower air cavity 3 can enter the upper air cavity 3 through the second opening 17 at the lower part of the middle partition frame 7, the first opening 16, and the second opening 17 at the upper part of the middle partition frame 7 in sequence. As the overlapping area between the first opening 16 and the second opening 17 increases, the circulation efficiency also increases.

A further optimized solution is that the position adjustment part includes a servo motor 9 fixedly connected in the middle partition frame 7, a screw rod 10 is coaxially fixedly connected to the output shaft of the servo motor 9, the axial direction of the screw rod 10 is parallel to the sliding direction of the sliding plate 15, and a threaded sleeve 13 is fixedly connected to the side of the sliding plate 15 close to the servo motor 9, and the threaded sleeve 13 is transmission-connected to the screw rod 10.

As shown in FIG4 , the control unit is electrically connected to the servo motor 9. When it is necessary to allow air to circulate between the upper and lower air cavities 3, the control unit controls the servo motor 9 to rotate, and the rotation of the servo motor 9 drives the screw rod 10 to rotate synchronously. When the screw rod 10 rotates, the threaded sleeve 13 is driven to move toward the sliding plate 15 through the thread transmission, so that the first opening 16 moves to the left and overlaps with the second opening 17. When it is not necessary to connect the upper and lower air cavities 3, the control unit controls the servo motor 9 to reverse, so that the sliding plate 15 slides in the opposite direction, so that the first opening 16 is staggered with the second opening 17 until it is between the two second openings 17, and the second opening 17 is blocked by the sliding plate 15.

A control method for an electrochromic smart window, the control process comprising:

The control unit controls the two sets of glass bodies 1 to be in a state of strong light transmittance and heat transmittance according to external light intensity and temperature factors. When the external environment temperature is high and the light intensity is strong, the control unit controls the two sets of glass bodies 1 to be in a state of strong light transmittance and heat transmittance.

When the external environment temperature is high and the light intensity is strong, the control unit applies a voltage of -1V to all four groups of glass bodies 1, so that all electrochromic films 12 are in a coloring state, so that the electrochromic films 12 have strong blocking properties for both visible light and near infrared, and avoid the indoor environment from being too bright and overheated. In summer, when the light sensor 6 detects that the light intensity has dropped, but the temperature sensor 5 monitors that the temperature in the air cavity 3 is high, the control unit applies a voltage of -0.2V to all four groups of glass bodies 1, so that the electrochromic films 12 have high light transmittance, but can effectively block near infrared, so that the brightness in the room is enhanced but a large amount of heat will not enter.

When the external environment temperature is low and the light intensity is weak, the control unit controls the two sets of glass bodies 1 to be in a state of weak light transmittance and heat transmittance;

When the external environment temperature is low and the light intensity is weak, the control unit applies a voltage of 1V to all four groups of glass bodies 1, so that all electrochromic films 12 are in a faded state, making the electrochromic films 12 highly transparent to both visible light and near infrared, thus preventing the indoor environment from being too dark and the temperature from being too low.

When the external environment temperature is low but the light is strong, the control unit controls the outer electrochromic film 12 of a group of glass bodies 1 to be in a state of strong light transmittance and heat transmittance, and controls the remaining glass bodies 1 to be in a state of weak light transmittance and heat transmittance, thereby weakening the strong light exposure to the greatest extent. At the same time, the sunlight heats the air cavity 3 through the glass bodies 1 with strong light transmittance and heat transmittance. At the same time, the control unit drives the connection control mechanism to connect the air cavities 3 on both sides of the middle partition frame 7, and the air flow makes the internal air of the two air cavities 3 heat up, which has a heat-insulating effect on the room.

On snowy days in winter, the accumulated snow will reflect light, which will make the light outside the house at a relatively strong level. At this time, the light sensor 6 detects that the light intensity is relatively strong, but the temperature sensor 5 detects that the temperature in the air cavity 3 is relatively low, that is, the outside temperature is relatively low. Therefore, it is necessary to block part of the visible light and allow the near infrared to pass through. At this time, the control unit applies a 1V voltage to the glass body 1 on the lower side of the middle partition frame 7 to make it in a faded state. The near infrared can irradiate and heat the air in the air cavity 3. At the same time, the control unit applies a -1V voltage to the remaining conductive glass 11 to make it all in a color-developing state. At this time, the visible light from the outside can be effectively blocked to avoid the entry of a large amount of strong light.

As the air temperature in the lower air cavity 3 increases, the control unit controls the sliding plate 15 to move through the servo motor 9, so that the first opening 16 and the second opening 17 are connected, so that air can flow through the upper and lower air cavities 3, thereby increasing the temperature in the air cavity 3 and further increasing the temperature of the glass body 1, thereby avoiding an excessive drop in the indoor temperature.

Embodiment 2:

As shown in FIG. 5 to FIG. 8 , the only difference between this embodiment and the first embodiment is that an opening and closing window frame 8 is further provided on the window frame 4 , and the glass body 1 in the first embodiment is also installed on the opening and closing window frame 8 .

When the opening and closing window frame 8 is opened, the external environment is directly connected to the indoor environment. At this time, the glass body 1 on the opening and closing window frame 8 is no longer required to change color. Therefore, an electrode connection component is also provided between the opening and closing window frame 8 and the window frame 4.

A further optimized solution is that the electrode connection assembly includes poles 18 fixedly connected to the top and bottom of the side walls of the opening and closing window frame 8, two groups of poles 18 are arranged close to the window frame 4, and two groups of electrode grooves 20 are opened on one side of the window frame 4 close to the opening and closing window frame 8, the two groups of electrode grooves 20 are arranged corresponding to the two groups of electrode poles 18, and the poles 18 are electrically connected to the electrochromic film 12 in the opening and closing window frame 8.

When the opening and closing window frame 8 is opened, the pole 18 is separated from the electrode groove 20 along with the movement of the opening and closing window frame 8. At this time, the glass body 1 no longer changes color because it cannot receive voltage.

As a further optimization scheme, a slide groove is provided on one side of the opening and closing window frame 8 close to the window frame 4, the pole 18 is slidably connected in the slide groove, and an elastic plate 22 is abutted between one end of the pole 18 close to the opening and closing window frame 8 and the bottom of the slide groove.

When the opening and closing window frame 8 is closed, after the pole 18 is inserted into the electrode groove 20, the pole 18 will be pushed by the elastic plate 22 to fit tightly with the electrode groove 20, avoiding poor contact between the pole 18 and the electrode groove 20, ensuring that the glass body 1 in the opening and closing window frame 8 can work normally after the opening and closing window frame 8 is closed.

A further optimized solution is that when the opening and closing window frame 8 is opened, in order to prevent a large amount of dust from entering the pole 18 and the electrode slot 20 and causing poor contact, a corrugated sealing sleeve 19 is fixedly connected to the side wall of the opening and closing window frame 8, and the pole 18 is located in the corrugated sealing sleeve 19. At the same time, a sealing gasket 21 is fixedly connected to the opening of the electrode slot 20. The corrugated sealing sleeve 19 is sealed at one end away from the closing window frame 8 and has a second cross crack 23, and a first cross crack 2 is opened on the sealing gasket 21.

As shown in FIGS. 6 to 8 , when the opening and closing window frame 8 is closed, the corrugated sealing sleeve 19 is squeezed and compressed, and at the same time, the head of the pole 18 passes through the second cross crack 23 and the first cross crack 2 to contact the bottom of the electrode groove 20, thereby achieving electrical connection between the two.

When the opening and closing window frame 8 is opened, the corrugated sealing sleeve 19 returns to the extended state, and the second cross crack 23 returns to the closed state under the action of its own elasticity, sealing the pole 18 in the corrugated sealing sleeve 19. At the same time, the first cross crack 2 returns to the closed state under the elastic action of the sealing gasket 21, sealing the electrode slot 20 to prevent dust from entering.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims (8)

1. An electrochromic intelligent window is provided, which comprises a window body, characterized by comprising the following steps:

The window frame (4), the said window frame (4) is fixedly connected with the middle bulkhead (7);

The glass comprises two groups of glass bodies (1), wherein the two groups of glass bodies (1) are respectively arranged in a window frame (4), an intermediate space frame (7) is positioned between the two groups of glass bodies (1), the glass bodies (1) comprise two groups of conductive glass (11), gel electrolyte (24) is clamped between the two groups of conductive glass (11) and the window frame (4) and between the two groups of conductive glass (11) and the intermediate space frame (7), and electrochromic films (12) are respectively arranged on opposite side walls of the two groups of conductive glass (11);

Two groups of glass (25), wherein the two groups of glass (25) are positioned at two sides of the middle spacer frame (7), and an air cavity (3) is arranged between the glass (25) and the conductive glass (11), the window frame (4) and between the glass and the middle spacer frame (7);

The air flow control assembly comprises a plurality of second openings (17) which are respectively arranged on two opposite side walls of the middle partition frame (7), the second openings (17) are communicated with the air cavity (3), a communication control mechanism is arranged in the middle partition frame (7) and is used for controlling whether the second openings (17) are communicated or not;

The control unit is arranged on the window frame (4) and is used for adjusting the light transmission and heat transmission performance of the glass main body (1) and controlling the operation of the communication control mechanism.

2. An electrochromic smart window according to claim 1, characterized in that: the control unit comprises an illumination sensor (6) arranged on the window frame (4), wherein the illumination sensor (6) is arranged on one side, far away from the interior of the house, of the window frame (4).

3. An electrochromic smart window according to claim 1, characterized in that: the control unit further comprises a temperature sensor (5) arranged in the air chamber (3).

4. An electrochromic smart window according to claim 1, characterized in that: the control unit adjusts the light transmission and heat transmission performance of the electrochromic film (12) by adjusting the voltage applied to the glass main body (1).

5. An electrochromic smart window as defined in claim 4, wherein: the control unit controls the voltage applied to the glass body (1) to be set to three steps of 1V, -0.2V and-1V.

6. An electrochromic smart window according to claim 1, characterized in that: the communication control mechanism comprises a chute (14) arranged in the middle partition frame (7), a plurality of second holes (17) on two opposite side walls of the middle partition frame (7) are respectively communicated with the chute (14), a sliding plate (15) is connected in the chute (14) in a sliding mode, a plurality of first holes (16) are formed in the sliding plate (15), a position adjusting piece is arranged between the middle partition frame (7) and the sliding plate (15), the position adjusting piece is used for driving the sliding plate (15) to slide in the chute (14), and when the sliding plate (15) slides to the first holes (16) and the second holes (17) on two sides of the middle partition frame (7) are overlapped, the air cavities (3) on two sides of the middle partition frame (7) are communicated.

7. An electrochromic smart window as defined in claim 6, wherein: the position adjusting piece comprises a servo motor (9) fixedly connected in the middle partition frame (7), a screw rod (10) is fixedly connected to an output shaft of the servo motor (9) in a coaxial line, the axial direction of the screw rod (10) is parallel to the sliding direction of the sliding plate (15), a thread bush (13) is fixedly connected to one side, close to the servo motor (9), of the sliding plate (15), and the thread bush (13) is in transmission connection with the screw rod (10).

8. An electrochromic smart window control method, based on an electrochromic smart window according to claim 1, characterized in that the control procedure comprises:

The control unit controls the two groups of glass main bodies (1) to be in a state of strong light transmittance and heat permeability according to external illumination intensity and temperature factors when the external environment temperature is high and the illumination front degree is strong;

When the external environment temperature is low and the illumination intensity is weak, the control unit controls the two groups of glass main bodies (1) to be in a weak light transmission and heat permeability state;

when the external environment temperature is lower but the illumination is stronger, the control unit is in stronger light transmissivity and diathermy state through controlling a set of glass main part (1), and simultaneously control other glass main parts (1) are in weaker light transmissivity and diathermy state, furthest weakens the illumination of highlight, and sunshine is permeated in glass main part (1) that is in stronger light transmissivity and diathermy simultaneously and is heated air cavity (3), and simultaneously control unit drive intercommunication control mechanism makes air cavity (3) intercommunication in middle bulkhead (7) both sides, and the inside air that makes two air cavities (3) through the air flow heats up, plays the heat preservation effect in to the room.