CN108725326A - Reflector apparatus - Google Patents

Abstract

The invention provides a mirror device. The reflector device may include a front shell, a rear shell, a reflective sheet, a light-absorbing sheet with a flexible material, and a driving assembly, the reflective sheet is fixed on the front shell, the front shell is connected to the rear shell, and the front shell, the reflective sheet are connected to the rear shell Cooperate to form a chamber for accommodating the light-absorbing sheet and the drive assembly; the light-absorbing sheet is arranged on the side of the reflective sheet away from the front shell, and the side with flexible material is close to the reflective sheet and has a gap reserved with the reflective sheet; the drive assembly and the light-absorbing sheet The side away from the reflective sheet is connected, wherein the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet. The reflective sheet provided by this solution cooperates with the drive assembly through the light-absorbing sheet, which helps to reduce the volume of the device; when glare occurs, the drive assembly directly pushes the light-absorbing sheet, so that the light-absorbing sheet is attached to the reflective sheet and absorbs at least part of the transmitted reflection The light of the film can achieve the anti-glare effect, making the anti-glare operation more flexible.

Description

mirror device

technical field

The invention relates to the technical field of optical equipment, in particular to a mirror device.

Background technique

In the field of traffic, it is usually necessary to use reflectors to check the conditions of vehicles behind the road, but existing reflectors are prone to glare. For example, when a car is driving at night or in a low-light environment, the light irradiated by the vehicle behind is likely to cause glare to the driver through the reflector, thereby affecting the driver's driving. In order to alleviate the glare produced when the rear light illuminates the rearview mirror, manual anti-dazzling is usually used in the prior art. For example, the rearview mirror is provided with two reflectors, and the reflectivity of one reflector is higher than that of the other reflector. The mirror surface of the reflective sheet with high reflectivity faces the rear of the car, thereby changing the high-intensity glare to low-intensity, and this method requires two reflective sheets, resulting in a large and inflexible device.

Contents of the invention

In order to overcome the shortcomings in the above-mentioned prior art, the present invention provides a reflector device to solve the above-mentioned problems.

In order to achieve the above object, the technical solutions provided by the embodiments of the present invention are as follows:

An embodiment of the present invention provides a reflector device, including: a front shell, a rear shell, a reflective sheet, a light-absorbing sheet with a flexible material, and a driving assembly, the reflective sheet is fixed on the front shell, and the front shell and the The rear shell is connected, and the front shell and the reflective sheet cooperate with the rear shell to form a chamber for accommodating the light-absorbing sheet and the driving assembly; the light-absorbing sheet is arranged on the reflective sheet The side away from the front shell, and the side with the flexible material is close to the reflection sheet and has a gap reserved with the reflection sheet; the drive assembly is connected to the side of the light-absorbing sheet away from the reflection sheet, Wherein, the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet, and in use, the driving assembly is used to push the light-absorbing sheet to attach to the reflective sheet.

Optionally, the above mirror device further includes a processing module, the front shell is provided with a first photosensitive sensor connected to the processing module, and the rear shell is provided with a second photosensitive sensor connected to the processing module The driving assembly includes a magnet and an electromagnet connected to the processing module, the magnet is arranged on the side of the light-absorbing sheet away from the front shell, the electromagnet is arranged on the rear shell, and the One magnetic pole of the magnet faces the electromagnet, wherein, when in use, the polarity of the two adjacent magnetic poles of the electromagnet and the magnet is the same, so as to push the light-absorbing sheet to attach to the reflecting sheet.

Optionally, the above-mentioned light-absorbing sheet includes a soft light-absorbing layer formed of the flexible material and a fixed sheet formed of a magnetically permeable material; the soft light-absorbing layer is arranged on the fixed sheet, and the magnet is arranged on the fixed sheet away from One side of the light-absorbing layer of the soft body.

Optionally, the above-mentioned first photosensitive sensor and the second photosensitive sensor are connected to the processing module via a comparator, wherein the first photosensitive sensor is connected to the first input end of the comparator, and the second photosensitive sensor is connected to the first input terminal of the comparator. The photosensitive sensor is connected to the second input terminal of the comparator, and the output terminal of the comparator is connected to the processing module.

Optionally, the above mirror device further includes a power module connected to the processing module.

Optionally, there are multiple magnets and multiple electromagnets.

Optionally, the above-mentioned processing module is a single-chip microcomputer.

Optionally, the reflector device further includes an elastic member, one end of the elastic member is connected to a side of the light-absorbing sheet close to the front case, and the other end of the elastic member is connected to the front case.

Optionally, the above-mentioned front shell and the rear shell are provided with a buckle that cooperates with each other, and the front shell and the rear shell are fastened and connected by the buckle.

The embodiment of the present invention also provides another mirror device, including: a front shell, a rear shell, a bracket, a reflective sheet, a light-absorbing sheet with a flexible material, and a driving assembly, the reflective sheet is fixed on the front shell, and the The front shell is connected to the rear shell, and the front shell and the reflective sheet cooperate with the rear shell to form a chamber for accommodating the light-absorbing sheet and the driving assembly, and the bracket is arranged on the The rear shell is far away from one end of the front shell; the light-absorbing sheet is arranged on the side of the reflective sheet away from the front shell, and the side with the flexible material is close to the reflective sheet and reserved with the reflective sheet There is a gap; the drive assembly is connected to the side of the light-absorbing sheet away from the reflective sheet, wherein the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet, and the drive assembly is used to push The light absorbing sheet is pasted on the reflecting sheet.

Compared with the prior art, the reflector device provided by the present invention has at least the following beneficial effects: the reflector device can include a front shell, a rear shell, a reflective sheet, a light-absorbing sheet with a flexible material, and a driving assembly, and the reflective sheet is fixed on On the front shell, the front shell is connected to the rear shell, and the front shell, the reflective sheet and the rear shell cooperate to form a chamber for accommodating the light-absorbing sheet and the driving assembly; the light-absorbing sheet is arranged on the side of the reflective sheet away from the front shell, and has One side of the flexible material is close to the reflection sheet and has a gap with the reflection sheet; the drive assembly is connected to the side of the light absorption sheet away from the reflection sheet, wherein the reflectivity of the reflection sheet is greater than that of the light absorption sheet. The reflective sheet provided by this solution cooperates with the drive assembly through the light-absorbing sheet, which helps to reduce the volume of the device; when glare occurs, the drive assembly directly pushes the light-absorbing sheet, so that the light-absorbing sheet is attached to the reflective sheet and absorbs at least part of the transmitted reflection The light of the film can achieve the effect of anti-glare, making the operation of anti-glare more flexible.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be described in detail below together with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, they can also make From these drawings other related drawings are obtained.

FIG. 1 is an exploded view of a reflector device provided by an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a mirror device provided by an embodiment of the present invention.

Fig. 3 is a schematic structural view of the reflective sheet and the light-absorbing sheet in the first state of the reflective mirror device provided by the embodiment of the present invention.

FIG. 4 is a partially enlarged schematic diagram of part I shown in FIG. 3 .

FIG. 5 is a schematic structural view of the reflective sheet and the light-absorbing sheet in the second state of the reflective mirror device provided by the embodiment of the present invention.

FIG. 6 is a partially enlarged schematic diagram of the II portion shown in FIG. 5 .

FIG. 7 is one of the circuit block diagrams of the mirror device provided by the embodiment of the present invention.

FIG. 8 is the second schematic diagram of the circuit block of the mirror device provided by the embodiment of the present invention.

Icons: 100-mirror device; 111-front shell; 112-rear shell; 120-reflector; 130-light-absorbing film; 131-soft light-absorbing layer; Magnet; 142-Electromagnet; 150-Elastic part; 160-Bracket; 171-Processing module; 172-First photosensitive sensor; 173-Second photosensitive sensor; 174-Comparator; 175-Power supply module.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "middle", "upper", "lower", "horizontal", "inner" and "outer" are based on those shown in the accompanying drawings. Orientation or positional relationship, or the orientation or positional relationship that the inventive product is usually placed in use, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that a component is absolutely level or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "arrangement", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediary, and can be internally connected between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Some embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1 and FIG. 2 in conjunction, wherein FIG. 1 is an exploded view of a mirror device 100 provided by an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the mirror device 100 provided by an embodiment of the present invention. The reflector device 100 provided by the present invention can be used as a rearview mirror of a vehicle, and can reduce the glare effect caused by the illumination of vehicles behind on the rearview mirror. The mirror device 100 may include a front shell 111 , a rear shell 112 , a reflective sheet 120 , a light-absorbing sheet 130 made of a flexible material, and a driving assembly 140 .

In this embodiment, the reflective sheet 120 is fixed on the front shell 111, the front shell 111 is connected to the rear shell 112, and the front shell 111, the reflective sheet 120 and the rear shell 112 cooperate to form a light-absorbing sheet 130 for accommodating the drive assembly. 140 chambers. The light-absorbing sheet 130 is arranged on the side of the reflective sheet 120 away from the front shell 111, and the side with flexible material is close to the reflective sheet 120 and has a gap 133 reserved with the reflective sheet 120 (refer to FIG. 4 ); the drive assembly 140 is far away from the light-absorbing sheet 130 One side of the reflective sheet 120 is connected, wherein the reflectivity of the reflective sheet 120 is greater than that of the light-absorbing sheet 130 , and the driving assembly 140 is used to push the light-absorbing sheet 130 to attach to the reflective sheet 120 during use.

In this embodiment, the front case 111 can be a hollowed-out frame shell, which can fix the reflective sheet 120 and make the reflective sheet 120 exposed from the hollowed-out part to serve as a reflective mirror.

In this embodiment, the reflective sheet 120 may be formed of a transparent material, for example, the reflective sheet 120 may be formed of glass, transparent resin and other materials. The reflector 120 can transmit light. When the first surface of the reflector 120 is in a strong light environment and the second surface of the reflector 120 is in a weak light environment, the first surface can be used as a reflective surface to reflect light in a strong light environment. , to use as a mirror. The back cover can be made of opaque material (eg black plastic), so that the side of the reflective sheet 120 inside the chamber is in a weak light environment.

In this embodiment, the light absorbing sheet 130 can absorb at least part of the light passing through the reflecting sheet 120 . The flexible material constituting the light-absorbing sheet 130 may include materials such as flexible black glue and flexible gray glue.

Optionally, the light-absorbing sheet 130 includes a soft light-absorbing layer 131 formed of the above-mentioned flexible material and a fixing sheet 132 formed of a magnetically permeable material. The soft light absorbing layer 131 is disposed on the fixing sheet 132 , and the magnet 141 is disposed on a side of the fixing sheet 132 away from the soft light absorbing layer 131 . The flexible light-absorbing layer helps to stick closely to the reflective sheet 120, so that there is no gap or bubble between the attached light-absorbing sheet 130 and the reflective sheet 120, and the light-absorbing sheet 130 can also absorb more light passing through the reflective sheet 120 , that is, the reflectivity of the reflective sheet 120 is reduced, thereby achieving the effect of reducing glare. The fixed piece 132 formed by the magnetic permeable material helps the magnet 141 to be fixed on the fixed piece 132, that is, the magnet 141 can be adsorbed on the fixed piece 132 by the force of the magnetic field, without using glue or other fasteners to fix the magnet 141 On the fixed piece 132. Certainly, in other implementation manners, the fixing piece 132 may also be formed of a non-magnetically conductive material, and the magnet 141 may be fixed on the fixing piece 132 by glue, fasteners, and the like. Wherein, the magnet 141 may be an ordinary magnet, a rubidium magnet, or the like.

Please refer to FIG. 3 to FIG. 6 in combination, wherein FIG. 3 is a structural schematic diagram of the reflective sheet and the light-absorbing sheet 130 in the first state of the reflector device 100 provided by the embodiment of the present invention, and FIG. 4 is the I part shown in FIG. 3 Figure 5 is a schematic structural view of the reflective sheet and the light-absorbing sheet 130 in the second state of the reflector device 100 provided by the embodiment of the present invention, and Figure 6 is a partial enlarged schematic view of part II shown in Figure 5 . Optionally, the reflector device 100 further includes an elastic member 150 , one end of the elastic member 150 is connected to a side of the light-absorbing sheet 130 close to the front case 111 , and the other end of the elastic member 150 is connected to the front case 111 . When there is no glare effect, the elastic member 150 is used to support the light-absorbing sheet 130, so that a certain gap 133 is formed between the light-absorbing sheet 130 and the reflecting sheet 120, and the width of the gap 133 can be set according to the actual situation. At this time, it can be called reflective sheet, the light-absorbing sheet 130 is in the first state. In the first state, because the inner side of the reflective sheet 120 is not in contact with the light-absorbing sheet 130, but exposed to the air inside the cavity, that is, the reflective sheet 120 can reflect more light, and the light passing through the reflective sheet 120 less.

When glare occurs, the driving assembly 140 pushes the light-absorbing sheet 130 and compresses the elastic member 150 so that the light-absorbing sheet 130 is closely attached to the reflective sheet. At this time, the reflective sheet and the light-absorbing sheet 130 can be said to be in the second state. Compared with the first state, in the second state, because the inner side of the reflective sheet 120 is in contact with the light-absorbing sheet 130, the light-absorbing sheet 130 can absorb more light in the second state, so that less light can be reflected, thereby reducing affected by glare. When the glare influence disappears, the drive assembly 140 returns to its original state, that is, in the first state, the state of the drive assembly 140, and the elastic member 150 releases the elastic potential energy, so that the light-absorbing sheet 130 breaks away from the surface of the reflective sheet 120, and contacts with the reflective sheet. 120 maintains a gap 133 . Based on this, it contributes to the miniaturization of the mirror device 100 .

In this embodiment, the elastic members 150 may be distributed on the edges of the light-absorbing sheet 130, for example, the light-absorbing sheet 130 may be a rectangular sheet, and multiple elastic members 150 may be arranged on four edges of the rectangular sheet. Wherein, the elastic member 150 may be a spring or a shrapnel, which is not specifically limited here.

Optionally, the front shell 111 and the rear shell 112 are provided with buckles that cooperate with each other, and the front shell 111 and the rear shell 112 are fastened and connected by the buckles.

Please refer to FIG. 1 again, the reflection device provided by the embodiment of the present invention may further include a bracket 160 . The bracket 160 is disposed at an end of the rear case 112 away from the front case 111 . In this embodiment, the bracket 160 is rotatably connected to the back cover, so that the back cover can rotate around the bracket 160 . The other end of the bracket 160 may be provided on the vehicle. For example, when used as a rearview mirror of a vehicle, the end of the bracket 160 away from the rear cover can be fixed on the vehicle.

Please refer to FIG. 7 , which is one of the circuit block diagrams of the mirror device 100 provided by the embodiment of the present invention. In this embodiment, the reflector device 100 may further include a processing module 171, the front shell 111 is provided with a first photosensitive sensor 172 connected to the processing module 171, and the rear shell 112 is provided with a second photosensitive sensor 172 connected to the processing module 171. The sensor 173; the driving assembly 140 includes a magnet 141 and an electromagnet 142 connected to the processing module 171. The magnet 141 is arranged on the side of the light-absorbing sheet 130 away from the front shell 111, the electromagnet 142 is arranged on the rear shell 112, and one magnetic pole of the magnet 141 Towards the electromagnet 142 , wherein, in use, the two poles of the electromagnet 142 and the magnet 141 are close to each other with the same polarity, so as to push the light-absorbing sheet 130 to attach to the reflective sheet 120 .

In this embodiment, the processing module 171 may be an integrated circuit chip, which has a signal processing capability. The above-mentioned processing module 171 may be a general-purpose processor. For example, the processor can be a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), a network processor (Network Processor, NP), etc.; it can also be a digital signal processor (DSP), Application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Certainly, the processor may also be a single-chip microcomputer (MCU), such as an SMT32 series single-chip microcomputer.

In this embodiment, the first photosensitive sensor 172 can be used to collect the first light intensity irradiated to the front shell 111 , and the second photosensitive sensor 173 can be used to collect the second illuminant intensity irradiated to the rear shell 112 . The processing module 171 can be used for comparing the first light intensity and the second light intensity. The processing module 171 may be configured to generate a control signal when it is determined that a glare effect is present. For example, when the own vehicle is in a dark environment or an environment with weak light, and the vehicle behind has lights shining on the reflective sheet, the processing module 171 generates a control signal, and the driving component 140 pushes the light-absorbing sheet 130 to attach to the reflective sheet according to the control signal. For example, the processing module 171 controls the electromagnet 142 to be energized based on the control signal (first control signal), so that the magnetic poles of the two ends of the electromagnet 142 and the magnet 141 are close to the same, so as to generate a repulsive thrust, thereby pushing the light-absorbing sheet 130 to fit together. On the reflective sheet, the purpose of reducing the glare effect is achieved.

When the glare effect disappears, the processing module 171 can generate another control signal (second control signal), so that the electromagnet 142 is powered off, the repulsive force at the two ends of the electromagnet 142 and the magnet 141 is weakened or disappeared, and the elastic member 150 is released. The elastic potential energy causes the light-absorbing sheet 130 to separate from the surface of the reflective sheet 120 and maintain a gap 133 with the reflective sheet 120 . Of course, when the glare effect disappears, the processing module 171 can control the electromagnet 142 to generate a magnetic field opposite to the first control signal based on the second control signal, that is, make the magnetic poles of the two ends of the electromagnet 142 and the magnet 141 close to the opposite, so as to The electromagnet 142 and the magnet 141 generate an attractive pulling force, so that the light-absorbing sheet 130 is detached from the surface of the reflective sheet 120 and maintains a gap 133 with the reflective sheet 120 .

Specifically, when the processing module 171 detects that the first light intensity is greater than or equal to the first threshold and the second light intensity is less than or equal to the second threshold, the processing module 171 generates a control signal, wherein the first threshold is greater than the second threshold, and the second threshold is greater than the second threshold. Both the first threshold and the second threshold can be set according to actual conditions, and are not specifically limited here. Wherein, the quantity of the magnet 141 and the electromagnet 142 can be set according to the actual situation, for example, both can be two, or both can be multiple, and the quantity is not specifically limited here.

Please refer to FIG. 8 , which is the second schematic circuit block diagram of the mirror device 100 provided by the embodiment of the present invention. Optionally, the first photosensitive sensor 172 and the second photosensitive sensor 173 are connected to the processing module 171 via a comparator 174, wherein the first photosensitive sensor 172 is connected to the first input end of the comparator 174, and the second photosensitive sensor 173 is compared with The second input end of the comparator 174 is connected, and the output end of the comparator 174 is connected with the processing module 171 .

Understandably, the comparator 174 may compare the first light intensity collected by the first photosensitive sensor 172 with the above-mentioned first threshold, and compare the second light intensity collected by the second photosensitive sensor 173 with the above-mentioned second threshold, when When the first light intensity is greater than or equal to the first threshold, and the second light intensity is less than or equal to the second threshold, the output level signal (such as a high level signal or a low level signal) is sent to the processing module 171, and the processing module 171 can be based on This level signal generates a control signal.

Based on the above design, the reflector device 100 can automatically detect the glare effect, and push the light absorbing sheet 130 to attach to the reflective sheet 120 when the glare effect occurs, so as to reduce the glare effect. That is, with the cooperation of the processing module 171, the reflector device 100 is flexible and convenient to use, has a quick response to glare, and can automatically reduce the impact of glare.

Optionally, the mirror device 100 further includes a power module 175 connected to the processing module 171 . The power module 175 can provide electrical energy for each electronic device in the mirror device 100 , for example, can provide electrical energy for electronic devices such as the processing module 171 , the first photosensitive sensor 172 , and the second photosensitive sensor 173 . The power module 175 can be a lithium-ion battery or a lead storage battery. Of course, the power supply module 175 can also be replaced by other power supply equipment, for example, the storage battery of the vehicle provides electric energy for each electronic device in the reflector device 100 .

It is worth noting that the size of each component in the reflector device 100 (for example, the front shell 111 , the rear shell 112 , the reflective sheet 120 , the light-absorbing sheet 130 , etc.) can be set according to the actual situation, and is not specifically limited here.

To sum up, the present invention provides a mirror device. The reflector device may include a front shell, a rear shell, a reflective sheet, a light-absorbing sheet with a flexible material, and a drive assembly, the reflective sheet is fixed on the front shell, the front shell is connected to the rear shell, and the front shell, the reflective sheet are connected to the rear shell Cooperate to form a chamber for accommodating the light-absorbing sheet and the drive assembly; the light-absorbing sheet is arranged on the side of the reflective sheet away from the front shell, and the side with flexible material is close to the reflective sheet and has a gap reserved with the reflective sheet; the drive assembly and the light-absorbing sheet The side away from the reflective sheet is connected, wherein the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet. The reflective sheet provided by this solution cooperates with the drive assembly through the light-absorbing sheet, which helps to reduce the volume of the device; when glare occurs, the drive assembly directly pushes the light-absorbing sheet, so that the light-absorbing sheet is attached to the reflective sheet and absorbs at least part of the transmitted reflection The light of the film can achieve the effect of anti-glare, making the operation of anti-glare more flexible.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A reflector device, characterized in that it comprises: a front shell, a rear shell, a reflector, a light-absorbing plate with a flexible material and a drive assembly, the reflector is fixed on the front shell, and the front shell and the The rear shell is connected, and the front shell and the reflective sheet cooperate with the rear shell to form a chamber for accommodating the light-absorbing sheet and the driving assembly; the light-absorbing sheet is arranged on the reflective The side of the sheet away from the front shell, and the side with the flexible material is close to the reflective sheet and has a gap reserved with the reflective sheet; the drive assembly is connected to the side of the light-absorbing sheet away from the reflective sheet , wherein, the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet, and the driving assembly is used to push the light-absorbing sheet to attach to the reflective sheet during use. 2. The mirror device according to claim 1, wherein the mirror device further comprises a processing module, the front shell is provided with a first photosensitive sensor connected to the processing module, and the rear shell A second photosensitive sensor connected to the processing module is arranged on the top; the driving assembly includes a magnet and an electromagnet connected to the processing module, and the magnet is arranged on the side of the light-absorbing sheet away from the front shell, so The electromagnet is arranged on the rear shell, and one magnetic pole of the magnet faces the electromagnet, wherein, in use, the polarity of the two magnetic poles close to the electromagnet and the magnet is the same to push The light absorbing sheet is pasted on the reflecting sheet. 3. The reflector device according to claim 2, wherein the light-absorbing sheet comprises a soft light-absorbing layer formed of the flexible material and a fixed sheet formed of a magnetically conductive material; the soft light-absorbing layer is arranged on the On the fixing sheet, the magnet is arranged on the side of the fixing sheet away from the soft light-absorbing layer. 4. The mirror device according to claim 2, wherein the first photosensitive sensor and the second photosensitive sensor are connected to the processing module via a comparator, wherein the first photosensitive sensor is connected to the The first input terminal of the comparator is connected, the second photosensitive sensor is connected with the second input terminal of the comparator, and the output terminal of the comparator is connected with the processing module. 5. The mirror device according to claim 2, further comprising a power module connected to the processing module. 6 . The reflector device according to claim 2 , wherein there are multiple magnets and multiple electromagnets. 7. The mirror device according to claim 2, wherein the processing module is a single-chip microcomputer. 8. The reflector device according to claim 1, characterized in that, the reflector device further comprises an elastic member, one end of the elastic member is connected to a side of the light-absorbing sheet close to the front shell, and the elastic member The other end of the piece is connected to the front shell. 9. The reflector device according to claim 1, characterized in that, the front shell and the rear shell are provided with buckles that cooperate with each other, and the front shell and the rear shell pass through the buckles Snap-fit connection. 10. A mirror device, characterized in that it comprises: a front shell, a rear shell, a bracket, a reflective sheet, a light-absorbing sheet with a flexible material, and a drive assembly, the reflective sheet is fixed on the front shell, the front The shell is connected to the rear shell, and the front shell and the reflective sheet cooperate with the rear shell to form a chamber for accommodating the light-absorbing sheet and the driving assembly, and the bracket is arranged on the The back shell is far away from the end of the front shell; the light-absorbing sheet is arranged on the side of the reflective sheet away from the front shell, and the side with the flexible material is close to the reflective sheet and has a reserved space with the reflective sheet Gap; the drive assembly is connected to the side of the light-absorbing sheet away from the reflective sheet, wherein the reflectivity of the reflective sheet is greater than that of the light-absorbing sheet, and the drive assembly is used to push the light-absorbing sheet The light-absorbing sheet is pasted on the reflecting sheet.