CN215808067U - Attached formula eyeshield light filling device - Google Patents

Abstract

The utility model provides an attached eye-protecting light supplementing device which comprises a light supplementing main body and an electric connection wire assembly, wherein the light supplementing main body comprises a shell, a photosensitive element, a light emitting element and a circuit board; the shell is provided with a cavity with one side open; the circuit board is arranged in the containing cavity, and the photosensitive element and the light-emitting element are arranged on the inner side surface of the circuit board; the circuit board is provided with a connector interface; the electric connection wire assembly comprises a flat cable, a first connector and a second connector; one end of the flat cable is connected with a first connector, and the first connector is used for being connected with a side interface of the mobile terminal in a pluggable mode; the other end of the flat cable is connected with a second connector, and the second connector is connected with the connector interface in a pluggable mode. The attached eye-protecting and light-supplementing device can supplement light properly, is quickly assembled and disassembled and is suitable for mobile terminals with different sizes.

Description

Attached formula eyeshield light filling device

Technical Field

The utility model relates to the technical field of peripheral products of mobile terminals, in particular to an attached eye protection and light supplement device.

Background

With the popularization of mobile phones, PADs and other terminal devices, more and more people suffer from eye discomfort symptoms. The specific reasons mainly include: the luminance of the display screen of the terminal device is higher than the background luminance of the terminal device, so that a bright area is formed on the display screen side of the terminal device, but a dark area is formed on the back side of the terminal device, which causes an inconsistency between the luminance of the display screen and the background luminance. Under the environment, the pupil size adjusted by the eyes of the user according to the background environment is not adaptive to the brightness of the display screen, and the visual fatigue is easy to occur when the user stares at the display screen for a long time, so that the visual health is influenced. Therefore, when the terminal device is used for a long time, if the background brightness of the terminal device can be changed so that the brightness of the display screen matches the background brightness, it is expected to alleviate such discomfort symptoms.

In addition, the market competition of mobile phones, PADs and other terminal devices is very intense, the number and frequency of new types of devices released by various large mobile phone manufacturers are obviously increased, the number and types of terminal devices held by users are increased, and different terminal devices often have different sizes.

Therefore, if the eye protection and light supplement device can be provided, the problem that the brightness of the display screen is matched with the background brightness when a user uses different terminal devices can be solved well, and the eye protection and light supplement device has higher value for the user.

SUMMERY OF THE UTILITY MODEL

Based on the above situation, a primary object of the present invention is to provide an attached eye protection light supplement device that can supplement light appropriately when a user uses a mobile terminal in a dark light environment to ensure the visual health of the user, and is convenient to attach to various types of mobile terminals and detach.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

an attached eye-protecting and light-supplementing device is used for being attached to the back of a mobile terminal and is independent relative to the mobile terminal before being attached to the back of the mobile terminal;

the attached eye-protecting and light-supplementing device comprises a light-supplementing main body and an electric connection wire assembly, wherein,

the light supplement main body is arranged on the back of the mobile terminal and comprises a shell, a photosensitive element, a light emitting element and a circuit board;

the shell is provided with a containing cavity with one side open, and the circuit board is arranged in the containing cavity; the photosensitive element and the light-emitting element are arranged on the inner side surface of the circuit board;

the circuit board is provided with a connector interface which is electrically connected with the photosensitive element and the light-emitting element;

the electric connecting line assembly comprises a flat cable, a first connector and a second connector, one end of the flat cable is connected with the first connector, and the first connector is used for being connected with a side interface of the mobile terminal in a pluggable mode; the other end of the flat cable is connected with the second connector, and the second connector is connected with the connector interface in a pluggable mode.

Preferably, the shell is provided with a wire passing hole groove, the connector interface is arranged on the inner side surface of the circuit board and corresponds to the wire passing hole groove, and the second connector extends into the accommodating cavity through the wire passing hole groove to be connected with the connector interface in a pluggable mode.

Preferably, a wire passing hole groove is formed in the end face, adjacent to the opening of the containing cavity, of the shell, and the connector interface extends into the wire passing hole groove.

Preferably, the shapes of the housing and the circuit board are both rectangular, the wire passing hole slot is centrally arranged at one side of the housing close to the side interface of the mobile terminal, and the flat cable is centrally led out from one side of the circuit board.

Preferably, an adapter circuit structure is arranged inside the first connector, and the flat cable is connected with the adapter circuit structure and led out from the peripheral surface of the first connector.

Preferably, one end of the first connector is provided with a male connector, the other end of the first connector is provided with a female connector, the switching circuit structure is connected with the switching circuit structure of the male connector and the switching circuit structure of the female connector, and the male connector is used for being connected with a side interface of the mobile terminal.

Preferably, the interface structure of the female terminal is the same as the structure of the side interface of the mobile terminal.

Preferably, a stepped concave portion is arranged at a connecting position of the end face, close to the opening of the accommodating cavity, of the shell and the inner wall face of the accommodating cavity, the edge portion of the circuit board is embedded in the stepped concave portion, one face, away from the accommodating cavity, of the circuit board and the end face, close to the opening of the accommodating cavity, of the shell are used for being detachably attached and fixed to the back face of the mobile terminal.

Preferably, the top surfaces of the photosensitive element and the light emitting element are lower than the surface of the shell, which is away from the opening of the containing cavity, and a light blocking part is arranged between the photosensitive element and the light emitting element.

Preferably, the light blocking part is adhered to the inner side surface of the circuit board by light blocking glue.

According to the attached eye-protecting light supplement device, the light supplement main body is installed on the back face of the mobile terminal, and when the distance from the light supplement main body to a side interface of the mobile terminal is long, such as when the attached eye-protecting light supplement device is attached to a tablet personal computer, an electric connection wire assembly with a long flat cable can be matched; and when the light supplement main body needs to be attached to the mobile terminal with the smaller back area, the light supplement main body can be easily detached from the original mobile terminal back, and if the distance from the light supplement main body to the mobile terminal side interface with the smaller back area is shorter, an electric connecting wire assembly with shorter length and suitable for flat cables can be matched, so that the light supplement main body can be attached to the back of the mobile terminal.

The circuit board covers the uncovered of casing to the circuit board is used for can dismantling the laminating fixedly with mobile terminal's the back, compares and only utilizes the laminating of the uncovered department terminal surface of casing, and coverage area is bigger, thereby can guarantee that it is more firm to attach.

In summary, after the mobile terminal is correctly attached to the attached eye-protecting and light-supplementing device of the present invention, when a user carries the mobile terminal and enters a dark light environment, the light-supplementing device can supplement light properly, thereby effectively ensuring the visual health of the user. And because the light filling main part, two liang of connections that can dismantle of electric connection line subassembly and mobile terminal, the back of another mobile terminal can be dismantled and installed from a mobile terminal easily to the light filling main part, and the light filling main part can arrange the different mobile terminal of connector come the adaptation difference that has different length different standards, thereby make attached formula eyeshield light filling device can adapt to the mobile terminal of equidimension not and have the mobile terminal of different interface standards, this kind easily attaches the characteristic with the adaptation, can make things convenient for new user to accept, thereby do benefit to the popularization of attached formula eyeshield light filling device, and then make good fortune public health better.

Other advantages of the present invention will be described in the detailed description, and those skilled in the art will understand the technical features and technical solutions presented in the description.

Drawings

Preferred embodiments of the attached eye-protecting and light-supplementing device according to the present invention will be described below with reference to the accompanying drawings. In the figure:

fig. 1 is a schematic view of a light supplement main body and an electrical connection line assembly in an attached eye-protecting light supplement device according to the present invention in an unplugged state;

fig. 2 is a schematic cross-sectional view of the fill light main body in fig. 1;

fig. 3 is a schematic structural view of an attached eye-protecting and light-supplementing device according to another preferred embodiment of the present invention attached to the back of a mobile terminal;

fig. 4 is a schematic perspective view of the attached eye-protecting and light-supplementing device shown in fig. 3;

fig. 5 is an exploded schematic view of the attached eye-protecting and light-supplementing device shown in fig. 4;

fig. 6 is a schematic partial structure view of the attached eye-protecting and light-supplementing device in fig. 3;

FIG. 7 is a top view of the structure of FIG. 6;

fig. 8 is a schematic sectional view taken along line VIII-VIII in fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						100	Eye protection light filling device	14	Light blocking part	31	Luminous surface
200	Mobile terminal	15	First annular wall	40	Flat cable
						10	Shell body	151	Inclined section	50	First connector
11	Roof wall	152	Straight cylinder section	51	Male head
						111	Photosensitive hole groove	16	Second annular wall	52	Female head
112	Light guide hole groove	17	Gap	53	Switching circuit structure
						12	Side wall	20	Photosensitive element	60	Circuit board
121	Wire passing hole groove	21	Photosensitive surface	61	Glue dispensing hole
						122	Stepped recess	22	Packaging base station	62	Connector interface
13	Containing chamber	30	Light emitting element	70	Second connector

Detailed Description

Referring to fig. 1 to 8, the attached eye-protecting and light-supplementing device 100 is attached to the back of the mobile terminal 200 and is independent from the mobile terminal 200 before being attached to the back of the mobile terminal 200.

The attached eye-protecting light supplement device 100 includes a light supplement body (not numbered) and an electrical connection assembly (not numbered), wherein fig. 1 and 2 mainly show the light supplement body and the connection manner thereof with the electrical connection assembly, fig. 6 and 7 mainly show the light supplement body in an assembled state, and a structure cut along the X-X line in fig. 7 is shown in fig. 2.

The light supplement main body is arranged on the back of the mobile terminal 200 in the left-right direction and centered, and includes a housing 10, a photosensitive element 20, a light emitting element 30 and a circuit board 60;

the housing 10 has a cavity 13 with an opening at one side, and the circuit board 60 is installed in the cavity 13, and the light-sensing element 20 and the light-emitting element 30 are both arranged on the inner side surface of the circuit board 60;

the circuit board 60 is provided with a connector interface electrically connected with the photosensitive element 20 and the light emitting element 30;

the electrical connection line assembly comprises a flat cable 40, a first connector 50 and a second connector 70, wherein one end of the flat cable 40 is connected with the first connector 50, and the first connector 50 is used for being connected with the side interface of the mobile terminal 200 in a pluggable manner; the flat cable 40 has another end connected to the second connector 70, and the second connector 70 is connected to the connector interface in a pluggable manner.

In this embodiment, the rear surface of the mobile terminal includes an edge region and a central region surrounded by the edge region. At least the main body part of the attached eye-protecting and light-supplementing device is attached to the back area of the mobile terminal. The mobile terminal 200 has a display screen, such as a liquid crystal display or an OLED display, and when the user holds the mobile terminal 200 to watch video and other applications, the bright light emitted from the display screen will illuminate the face of the person. In a dim light environment with poor illumination, the size of the pupil of the human eye is larger than that of the pupil of the human eye under the same display screen brightness condition but in a bright light environment, so that the visual fatigue is easy to influence the visual health when the display screen is watched for a long time.

The housing 10 is preferably made of plastic and is formed by injection molding, but the housing 10 may be made of other materials such as stainless steel. The housing 10 may be detachably attached to the rear surface of the mobile terminal 200 by means of a snap, an adhesive, or a suction, etc. The back of the mobile terminal 200 may refer to either the back of the housing of the mobile terminal 200 itself or the back of a currently popular, drop-resistant or decorative protective housing that is additionally installed by the user for the mobile terminal 200. The casing 10 may be a rectangular box body, or may be an arc casing shape such as a semi-ellipsoid or a hemisphere with an arc.

In a specific embodiment, referring to fig. 2 to 8, the housing 10 includes a top wall 11 and a side wall 12, the top wall 11 is disposed opposite to the back of the mobile terminal 200, and the side wall 12 extends from an edge of the top wall 11 to the back of the mobile terminal 200; the distance from the outer side of the top wall 11 to the back of the mobile terminal 200 is less than one fifth of the dimension of the top wall 11 in any direction parallel to the back of the mobile terminal 200; the area of the outer side surface of the top wall 11 is less than one tenth of the area of the rear surface of the mobile terminal 200, and the projection of the top wall 11 to the rear surface of the mobile terminal 200 completely falls within the range of the rear surface of the mobile terminal 200. The light-sensing hole groove 111 and the light-guiding hole groove 112 are formed on the top wall 11.

The light sensing element 20 is used for detecting the intensity of the ambient light on the back side of the mobile terminal 200, for example, detecting the intensity of visible light with a specific wavelength, and specifically, the light sensing element 20 is a light sensing diode. The light emitting element 30 is used to emit light to the back side of the mobile terminal 200 to enhance the brightness of the ambient light on the back side of the mobile terminal 200. In particular, the light emitting element 30 is preferably an LED lamp bead.

The circuit board 60 is used to provide a driving circuit, a control circuit, and a carrying platform for the light sensing element 20 and the light emitting element 30, and also used to provide a mounting surface for mounting the attached eye-protecting and light-supplementing device 100. By connecting the electrical connection wire assembly, at least the light sensing element 20 and the light emitting element 30 can be powered through the mobile terminal 200, so as to perform light supplement control by using the mobile terminal 200.

Specifically, the surface of the housing 10 away from the opening of the cavity 13 is provided with a photosensitive hole groove 111 communicated with the cavity 13 and a plurality of light guide hole grooves 112 arranged on the periphery of the photosensitive hole groove 111; the light sensing hole groove 111, the light guiding hole groove, and the wire passing hole groove 121 in the following embodiments may be holes or grooves. Preferably, a plurality of light emitting elements 30 are disposed corresponding to each of the light guide hole grooves 112. The photosensitive element 20 is disposed corresponding to the photosensitive hole groove 111, the light emitting element 30 is disposed corresponding to the light guide hole groove 112, and both the photosensitive surface of the photosensitive element 20 and the light emitting surface of the light emitting element 30 face the outer side circuit board 60 of the housing 10 away from the cavity 13 to detachably attach and fix the back of the mobile terminal 200;

the attached eye-protecting and light-supplementing device 100 of the present invention is attached to the back of the mobile terminal 200, and the light sensing element 20 can accurately detect the ambient light brightness at one side of the back of the mobile terminal 200 through the light sensing hole groove 111.

The light filling main body is arranged in the center of the left and right and is arranged in the center of the back face of the mobile terminal 200, and the light filling is uniform in the left and right directions. The housing 10 is provided with a plurality of light guide grooves 112, and the light emitting element 30 is dedicated to the ambient supplementary lighting for protecting eyesight, so that when it is determined that the light emitting element 30 needs to be supplemented with light according to the detected ambient light brightness, the air or the adjacent object in the set range is fully illuminated on the back side of the mobile terminal 200 to form sufficient diffuse reflection, thereby forming a lighting atmosphere beneficial to the guarantee of eyesight health.

The light supplement main body is installed on the back of the mobile terminal 200, and when the distance from the light supplement main body to the side interface of the mobile terminal 200 is long, for example, when the light supplement main body is attached to a tablet computer, the light supplement main body can be matched with an electric connection wire assembly with a long flat cable 40; when the light supplement main body needs to be attached to the mobile terminal 200 with a smaller back area, the light supplement main body can be easily detached from the back of the original mobile terminal 200, and if the distance from the light supplement main body to the side interface of the mobile terminal 200 with a smaller back area is shorter, an electrical connection assembly with a shorter length suitable for the flat cable 40 can be matched, so that the light supplement main body can be attached to the back of the mobile terminal 200.

The circuit board 60 covers the opening of the housing 10, and the circuit board 60 is detachably attached to the back surface of the mobile terminal 200, so that the coverage area is larger than that of the circuit board 60 attached only by the end surface of the opening of the housing 10, and the attachment is more reliable. In a preferred implementation, if the housing 10 is set to be flat box-shaped, then, compared with the housing 10 set to be closed in the direction perpendicular to the back of the mobile terminal 200, the circuit board 60 is directly utilized to cover the opening of the housing 10 and to be attached and fixed to the back of the mobile terminal 200, which is beneficial to making the thickness of the light supplement main body as small as possible, thereby ensuring the portability of the attached eye-protecting light supplement device 100 of the utility model.

In summary, after the mobile terminal 200 is correctly attached to the attached eye-protecting and light-supplementing device 100 of the present invention, when a user carries the mobile terminal 200 and enters a dark light environment, the light-supplementing device can supplement light properly, thereby effectively ensuring the visual health of the user. And because the light filling main part, two liang of connections of electricity wiring subassembly and mobile terminal 200 can be dismantled, the light filling main part can be easily dismantled and install another mobile terminal 200's the back from a mobile terminal 200, and the light filling main part can arrange the different mobile terminal 200 of adaptation with the connector that has different length different standards, thereby make attached eyeshield light filling device 100 can adapt to the mobile terminal 200 of equidimension not and have the mobile terminal 200 of different interface standards, this kind of easily attach and the characteristic of adaptation, can make things convenient for new user to accept, thereby do benefit to the popularization of attached eyeshield light filling device 100, and then make good for public health better.

Further, referring to fig. 2 to 5, in an embodiment, in order to better utilize the inner side surface of the circuit board 60 and make the structure of the light supplement main body more compact, the housing 10 is provided with a wire passing hole slot, the connector interface is disposed on the inner side surface of the circuit board 60 and is disposed corresponding to the wire passing hole slot, and the second connector 70 extends into the cavity 13 through the wire passing hole slot to be connected with the connector interface in a pluggable manner. In this manner, it is not necessary to protrude the edge of the circuit board 60 from the housing 10 to facilitate the arrangement of the connector interface and the connection between the connector interface and the electrical connection assembly. Preferably, a wire through hole groove is formed in the end surface of the housing 10 adjacent to the opening of the cavity 13, and the connector interface extends into the wire through hole groove. In this way, the depth of insertion into the housing 10 required when the second connector 70 is plugged can be reduced; in addition, the positioning of the circuit board 60 when the circuit board 60 is covered with the housing 10 can be facilitated.

Further, the shapes of the housing 10 and the circuit board 60 are both rectangular, the wire through hole slot is centrally opened at a side of the housing 10 close to the side interface of the mobile terminal 200, and the flat cable 40 is centrally led out from a side of the circuit board 60.

In this embodiment, since the side interface of the mobile terminal 200 is generally disposed in the center from left to right if it is used for charging and/or transmitting data, when the flat cable 40 is led out from one side of the circuit board 60 in the center, on one hand, the main body including the housing 10 and the circuit board 60 can be attached to the flat cable 40 by referring to the flat cable 40 itself, and on the other hand, the flat cable 40 can be better attached to the back of the mobile terminal 200 by reducing the bending of the flat cable 40.

Furthermore, the first connector 50 is provided with an adapter circuit structure 53 inside, and the flat cable 40 is connected to the adapter circuit structure 53 and led out from the peripheral surface of the first connector 50. In this embodiment, compared with the connection direction between the first connector 50 and the side interface of the mobile terminal 200, the flat cable 40 is led out from the peripheral surface of the first connector 50, because the bending degree of the flat cable 40 is lower, stress concentration can be better prevented, so that the pluggable frequency of the flat cable 40 is increased, and the durability of the attached eye-protecting light-filling device 100 is improved.

Further, one end of the first connector 50 is provided with a male connector 51, the other end is provided with a female connector 52, the adapting circuit structure 53 connects the male connector 51 and the adapting circuit structure 53 of the female connector 52, and the male connector 51 is used for interfacing with the side surface of the mobile terminal 200. In this embodiment, since the first connector 50 provides the female connector 52 to replace the side interface of the mobile terminal 200, the female connector 52 on the first connector 50 can be used by a user to connect a charger, a power adapter or the like or to perform power transmission and/or data transmission with the terminal without occupying the side interface of the mobile terminal 200. Preferably, the interface structure of the female connector 52 is the same as the structure of the side interface of the mobile terminal 200, so that the user can charge the mobile terminal 200 or perform data transmission with the mobile terminal 200 using a connector adapted to the side interface of the original mobile terminal 200.

Further, referring to fig. 8 and fig. 2, in an embodiment, a stepped recess 122 is disposed at a connection position between an end surface of the housing 10 adjacent to the opening of the receiving cavity 13 and an inner wall surface of the receiving cavity 13, an edge portion of the circuit board 60 is embedded in the stepped recess 122, and a surface of the circuit board 60 facing away from the receiving cavity 13 and an end surface of the housing 10 adjacent to the opening of the receiving cavity 13 are both used to be detachably attached and fixed to a back surface of the mobile terminal 200. In this embodiment, through setting up the edge portion that sets up stepped recess 122 on casing 10 and supply circuit board 60 to inlay, thereby make circuit board 60 can obtain better spacing, and avoid the surface of horizontal protrusion casing 10, thereby it is fixed with the back laminating of mobile terminal 200 to utilize the neighbouring open terminal surface in appearance chamber 13 of casing 10 in the lump better, for example through the non-setting adhesive coating that will be used for fixing on the neighbouring open terminal surface in appearance chamber 13 of casing 10, also set up magnetism piece with the non-setting adhesive coating in the one side that circuit board 60 deviates from appearance chamber 13 or at the back of circuit board 60 simultaneously.

Further, in order to satisfy the fixed demand of detachable laminating between the back to attached formula eyeshield light filling device 100 and mobile terminal 200 better, promote the number of times of dismantling of attached formula eyeshield light filling device 100, attached formula eyeshield light filling device 100 still includes magnetism and inhales piece (not shown), magnetism is inhaled the piece and is located and hold 13 and fix the medial surface at circuit board 60, magnetism is inhaled the piece and is used for deviating from the one side that holds 13 and the neighbouring of casing 10 and hold the metal casing 10 that holds 13 open terminal surface laminating mobile terminal 200 of chamber and adsorb with mobile terminal 200 when circuit board 60.

In this embodiment, compared with the way of attaching and fixing by using adhesive sticker bonding, the way of using magnetic attraction to attract the attached eye protection and light supplement device 100 is more suitable for attaching and fixing to the back of the mobile terminal 200 and separating from the back of the mobile terminal 200 repeatedly, and is not limited to the times of detachment/attachment.

Further, referring to fig. 2 to 8, in an embodiment, top surfaces of the photosensitive element 20 and the light emitting element 30 are lower than a surface of the housing 10 facing away from the opening of the cavity 13, as D1 in fig. 8 is greater than zero; the housing 10 is provided with a light blocking portion 14 between the light receiving element 20 and the light emitting element 30. In this embodiment, since the light sensing element 20 is preferably further configured to detect the ambient light brightness at the back side of the mobile terminal 200 after the light emitting element 30 performs the initial light supplement to provide a feedback signal for further adjusting the brightness of the light emitting element 30, the light guiding portion disposed between the light sensing element 20 and the light guiding element in the housing 10 can avoid the light emitting element 30 from interfering with the detection of the light sensing element 20.

Further, in an embodiment, the light blocking portion 14 is adhered to the inner side surface of the circuit board 60 by using a light blocking glue. By arranging the light blocking glue to connect the light blocking part 14 and the circuit board 60, light leakage due to assembly gaps or looseness can be avoided. The light-shading glue is usually prepared by adding dark light-shading coloring agent into common glue, such as prepared black glue.

Further, in an embodiment, the light blocking portion 14 includes a first annular wall 15, the first annular wall 15 is connected to an edge of the light sensing aperture groove 111, and the first annular wall 15 is formed by extending from an inner wall of the cavity 13 to a direction close to the circuit board 60; the inner wall surface at the inlet of the outer side of the first annular wall 15 is gradually enlarged from inside to outside, the inner end of the first annular wall 15 is lower than the top surface of the photosensitive element 20, and the inner end of the first annular wall 15 is bonded with the circuit board 60 through light-shielding glue.

In this embodiment, the inner wall surface at the outer entrance of the first annular wall 15 is gradually enlarged from inside to outside, so as to conveniently introduce the ambient light into the photosensitive element 20; the inner end of the first annular wall 15 is lower than the top surface of the light sensing element 20 to facilitate that the light sensing element 20 receives as much ambient light as possible. Furthermore, since the first annular wall 15 is closest to the photosensitive element 20, light shielding by the first annular wall 15 can achieve a light-weight design of the housing 10 on the one hand, and on the other hand, because the inner end of the first annular wall 15 has a relatively small circumference, the amount of light shielding glue can be reduced to some extent.

Further, the housing 10 further includes a second annular wall 16 disposed on the inner side surface of the top wall 11, the second annular wall 16 is connected to the edge of the light guide hole groove 112, and the second annular wall 16 is formed to extend from the inner side surface of the top wall 11 toward a direction close to the back surface of the circuit board 60. The inner wall of the outer inlet of the second annular wall 16 is gradually enlarged from inside to outside, the inner end of the second annular wall 16 is lower than the top surface of the light emitting element 30, and the light blocking portion 14 is formed at the positions of the first annular wall 15 and the second annular wall 16 between the light sensing element 20 and the light emitting element 30.

In this embodiment, corresponding to the first annular wall 15, the inner wall of the outer inlet of the second annular wall 16 is gradually enlarged from inside to outside, so that the light emitted by the light emitting element 30 is conveniently guided out to the environment, and the light of the light emitting element 30 is not excessively diffused; the inner end of the second annular wall 16 is below the top surface of the light emitting element 30 so that light emitted from the light emitting element 30 may be emitted through the light guide hole groove 112. In addition, the first annular wall 15 and the second annular wall 16 are reused to form the light blocking portion 14, so that the structure of the housing 10 is simplified, and a double-layer light blocking structure is formed at the same time, thereby improving the light blocking effect.

Further, in one embodiment, the inner wall surfaces at the outer inlets of the first annular wall 15 and the second annular wall 16 are each formed by a slope and/or a tapered surface, and the inclination angle of the inner wall surface at the outer inlet of the first annular wall 15 is larger than that of the inner wall surface at the outer inlet of the second annular wall 16, as shown in fig. 8

Is greater than

In FIG. 2

Larger than in fig. 8

In the embodiment, the inner and outer gradually-expanding inner wall surfaces are formed by the inclined surfaces and/or the conical surfaces, so that the corresponding structure can be simplified, and the production and the manufacture are convenient; the oblique angle of the inlet of the first annular wall 15 is greater than that of the inlet of the second annular wall 16, and through the differentiated design, on one hand, the light beams emitted by any two adjacent light guide hole grooves 112 can be prevented from crossing at an excessively close distance, so that the detection of the ambient light brightness is influenced; on the other hand, by relatively enlarging the entrance of the first annular wall 15, sufficient ambient light is introduced, thereby improving the detection sensitivity of the photosensitive element 20. Preferably, the angle of inclination of the inner wall surface at the inlet to the outside of the first annular wall 15 is 60 degrees, and the angle of inclination of the inner wall surface at the inlet to the outside of the first annular wall 15 is 30 degrees, i.e., fig. 8

Is equal to that in FIG. 2

Are all 60 degrees; in FIG. 8

Equal to 30 degrees. Preferably, a gap is formed between an inner wall surface of the inner end of the second annular wall 16 and the light emitting element 30 so that the light emitting element 30 can be conveniently installed. In order to better fix the light emitting element 30 and prevent the light emitting element 30 from being oxidized due to high temperature, a transparent adhesive (not shown) for coating the light emitting element 30 is filled in the second annular wall 16.

Further, referring to fig. 8, in an embodiment, the first annular wall 15 includes an inclined section 151 located at an outer entrance, and a straight section 152 connected to an inner end of the inclined section 151, an inner wall surface at the outer entrance of the first annular wall 15 is formed on the inclined section 151, and the straight section 152 is used for limiting a package base of the photosensitive element 20.

In this embodiment, the shape of the transverse slope of the first annular wall 15 is set to be a shape in which two segments are connected, so that sufficient light is ensured to be introduced, the installation space of the photosensitive element 20 is prevented from being occupied, the limit of the encapsulation base station of the photosensitive element 20 is realized, and the light blocking and isolating effect of the light blocking portion 14 is enhanced.

Further, referring to fig. 2 to 4, fig. 6 and fig. 8 again, in an embodiment, a gap is formed between an inner wall surface of the inner end of the second annular wall 16 and the light emitting element 30, so that the light emitting element 30 can be conveniently installed. In order to better fix the light emitting element 30 and prevent the light emitting element 30 from being oxidized due to high temperature, a transparent adhesive (not shown) for coating the light emitting element 30 is filled in the second annular wall 16.

Further, referring to fig. 8, in an embodiment, a fixing glue (not shown) is filled between an inner side surface of the circuit board 60 and an inner wall surface of the cavity 13. In this embodiment, the circuit board 60 and the housing 10 are fixedly connected by fixing glue, and compared with the manner of fastening, the manner of increasing the connection strength between the housing 10 and the circuit board 60 is simpler in structure. After the circuit board 60 and the housing 10 are fixedly connected by glue, the circuit board and the housing are not easily separated from each other, so that the durability is increased, and the attached eye-protecting and light-compensating device 100 is more suitable for being repeatedly attached to and fixed on the back of the mobile terminal 200 and separated from the back of the mobile terminal 200.

Further, referring to fig. 5, in an embodiment, the circuit board 60 is provided with a dispensing hole 61 communicating with the cavity 13, and the dispensing hole 61 is used for filling and fixing glue between an inner side surface of the circuit board 60 and an inner wall surface of the cavity 13. In this embodiment, the glue dispensing hole 61 is disposed to facilitate covering the opening of the casing 10 with the circuit board 60, i.e., filling the fixing glue between the inner side surface of the circuit board 60 and the inner wall surface of the cavity 13 after ensuring the predetermined position relationship between the circuit board 60 and the casing 10.

It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the utility model.

Claims (10)

1. An attached eye protection and light supplement device, which is used for being attached to the back of a mobile terminal and is independent from the mobile terminal before being attached to the back of the mobile terminal;

the attached eye-protecting and light-supplementing device comprises a light-supplementing main body and an electric connection wire assembly, wherein,

the light supplement main body is arranged on the back of the mobile terminal and comprises a shell (10), a photosensitive element (20), a light emitting element (30) and a circuit board (60);

the shell (10) is provided with a cavity (13) with one open side, the circuit board (60) is installed in the cavity (13), and the photosensitive element (20) and the light-emitting element (30) are both arranged on the inner side surface of the circuit board (60);

the circuit board (60) is provided with a connector interface (62) which is electrically connected with the photosensitive element (20) and the light-emitting element (30);

the electric connection wire assembly comprises a flat cable (40), a first connector (50) and a second connector (70), one end of the flat cable (40) is connected with the first connector (50), and the first connector (50) is used for being connected with a side interface of the mobile terminal in a pluggable mode; the other end of the flat cable (40) is connected with the second connector (70), and the second connector (70) is connected with the connector interface (62) in a pluggable mode.

2. The attached eye-protecting and light-supplementing device according to claim 1, wherein a wire passing hole slot (121) is formed in the housing (10), the connector interface (62) is disposed on an inner side surface of the circuit board (60) and disposed corresponding to the wire passing hole slot (121), and the second connector (70) extends into the cavity (13) through the wire passing hole slot (121) to be connected with the connector interface (62) in a pluggable manner.

3. The attached eye-protecting and light-supplementing device according to claim 2, wherein the wire through hole groove (121) is formed in an end surface of the housing (10) adjacent to the opening of the accommodating cavity (13), and the connector interface (62) extends into the wire through hole groove (121).

4. The attached eye-protecting and light-supplementing device according to claim 3, wherein the housing (10) and the circuit board (60) are rectangular, the wire through hole slot (121) is centrally formed at a side of the housing (10) close to the side interface of the mobile terminal, and the flat cable (40) is centrally led out from a side of the circuit board (60).

5. The attached eye-protecting and light-supplementing device according to claim 1, wherein an adapter circuit structure (53) is disposed inside the first connector (50), and the flat cable (40) is connected to the adapter circuit structure (53) and extends out from the peripheral surface of the first connector (50).

6. The attached eye-protecting and light-supplementing device according to claim 5, wherein a male connector (51) is disposed at one end of the first connector (50), a female connector (52) is disposed at the other end of the first connector, the switching circuit structure (53) connects the male connector (51) and the switching circuit structure (53) of the female connector (52), and the male connector (51) is used for interfacing with a side surface of the mobile terminal.

7. The attached eye-protecting and light-supplementing device according to claim 6, wherein the interface structure of the female connector (52) is the same as the structure of the side interface of the mobile terminal.

8. The attached eye-protecting and light-supplementing device according to claim 7, wherein a stepped recess (122) is formed at a joint of an end surface of the housing (10) adjacent to the opening of the accommodating cavity (13) and an inner wall surface of the accommodating cavity (13), an edge of the circuit board (60) is embedded in the stepped recess (122), and one surface of the circuit board (60) departing from the accommodating cavity (13) and the end surface of the housing (10) adjacent to the opening of the accommodating cavity (13) are detachably attached to and fixed to the back surface of the mobile terminal.

9. The attached eye-protecting and light-supplementing device according to claim 1, wherein top surfaces of the light-sensing element (20) and the light-emitting element (30) are lower than a surface of the housing (10) away from the opening of the cavity (13), and a light blocking portion (14) is disposed between the light-sensing element (20) and the light-emitting element (30) of the housing (10).

10. The attached eye-protecting and light-supplementing device of claim 9, wherein the light blocking portion (14) is bonded to the inner side of the circuit board (60) by light-shielding glue.

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