Projection base and electronic equipment

Abstract

The invention relates to a projection base and electronic equipment. The projection base comprises a shell, a magnetic part and a projection module. The housing includes a mounting portion and a window portion. The window portion includes an opening. And when the projectable base is placed on a projection surface, the window part is close to the projection surface relative to the mounting part. The magnetic piece is arranged in the shell and used for attracting external equipment to the mounting part. The projection module is arranged on the window part and faces the opening; and the projection module is used for being in signal connection with the external equipment and projecting an image on the projection surface. The projectable base provided by the invention can be connected with the mobile terminal equipment, and projection can be carried out on the surface where the projectable base is placed. The setting mode can prevent the emergent light of the projection module from directly entering the eyes of the user to cause visual impairment of the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to a projection base and an electronic device. BACKGROUND

[0002] With the wide application of electronic products, people's functional requirements for electronic products are also getting higher and higher. For example, in the scene of using electronic products to assist teaching, children are not interested in learning and feel boring, so they require electronic devices to have more diverse functions and to be able to stimulate children's interest in learning and achieve the purpose of combining teaching with entertainment.

[0003] When children use a tablet computer for learning, they need to bend down for a long time to look at the screen of the tablet computer, or they need to use a high enough electronic device support. However, the light source emitted by the tablet computer for a long time will also affect the vision of the children. SUMMARY

[0004] The present application provides a projection base and an electronic device to solve some or all of the deficiencies in the related art.

[0005] The first aspect of the present application provides a projection base, comprising:

[0006] A housing comprising a mounting portion and a window portion; the window portion comprises an opening; when the projection base is placed on a projection surface, the window portion is closer to the projection surface relative to the mounting portion;

[0007] A magnetic member disposed in the housing for attracting an external device to the mounting portion;

[0008] A projection module disposed in the window portion and facing the opening; the projection module is used for signal connection with the external device and projecting an image on the projection surface.

[0009] Further, the housing further comprises a base portion, the window portion is disposed between the mounting portion and the base portion; the included angle between the base portion and the position of the window portion where the opening is formed is obtuse.

[0010] Further, on the light-emitting side of the projection module, the included angle between the base portion and the projection surface is greater than or equal to 90°.

[0011] Further, in the direction of the light-emitting side of the housing away from the projection module, the included angle between the mounting portion and the window portion is obtuse.

[0012] Further, the shell further comprises a base portion, the window portion is arranged between the mounting portion and the base portion; the base portion comprises a central region and an edge region; the edge region and the central region are arranged along a width direction, and the central region is located in the edge region; the opening is directed to the central region.

[0013] Further, an included angle between the central region and the window portion is an obtuse angle; the edge region is connected with the mounting portion and located in the same plane.

[0014] Further, the shell comprises a top surface arranged away from the projection surface; in a direction from a light-out side of the projection module to a direction away from the light-out side of the shell, a height distance between the top surface and the projection surface gradually decreases.

[0015] Further, an included angle between the mounting portion and a vertical plane is greater than or equal to 15° and less than or equal to 30°.

[0016] Further, the projection module comprises a light-out surface arranged close to the opening; a height distance between a light-out point of the light-out surface of the projection module and the projection surface is greater than or equal to 15 cm and less than or equal to 35 cm.

[0017] Further, the shell further comprises a heat dissipation hole; the heat dissipation hole is arranged on a side of the shell away from the opening; and / or,

[0018] The projectable base further comprises a battery arranged in the shell; the shell comprises a power supply charging and discharging port electrically connectable with the battery; the power supply charging and discharging port is arranged on a side of the shell away from the opening; and / or,

[0019] The projectable base further comprises a charging coil; the charging coil is arranged in the mounting portion and used for charging the external device.

[0020] Further, the projectable base further comprises an electrically connected photographing module and a photographing signal terminal; the photographing module is accommodated in the shell and a light-in side thereof is directed to the opening; the photographing signal terminal is arranged in the mounting portion and used for signal connection with the external device; the photographing module is used for photographing an image of the projection surface; the photographing signal terminal is used for sending the image photographed by the photographing module to the external device; and / or

[0021] The projectable base further comprises a distance sensor electrically connected with the projection module; the distance sensor is accommodated in the shell and has a collection end facing the opening; the distance sensor is used for sensing a distance between a user's head and the collection end; when the distance sensor senses that the distance is less than or equal to a threshold value, the projection module stops projection.

[0022] Further, the projection module is an ultra-short focus projection module.

[0023] The second aspect of the present application provides an electronic device, comprising:

[0024] A mobile terminal device;

[0025] The projectable base of the foregoing embodiment, the mobile terminal device is detachably connected with the mounting portion through the magnetic member; when the mobile terminal device is connected with the mounting portion, the mobile terminal device does not block a projection route of the projection module.

[0026] Further, the projectable base comprises a base coil arranged on the mounting portion; the mobile terminal device comprises a flat coil; when the mobile terminal device is attached to the mounting portion, the base coil cooperates with the flat coil to charge the mobile terminal device.

[0027] Further, the projectable base comprises a projection signal terminal arranged on the mounting portion; the projection signal terminal is electrically connected with the projection module to send a working signal to the projection module to enable the projection module.

[0028] When the mobile terminal device is connected with the mounting portion, the projection signal terminal is electrically connected with the mobile terminal device and directly sends the working signal.

[0029] The projectable base provided by the present application can be connected with a mobile terminal device and project on a surface on which the projectable base is placed. This arrangement can avoid the light emitted by the projection module directly entering the eyes of a user and causing damage to the user's vision. Moreover, the mounting portion is located on the side of the viewing window portion away from the projection surface, so that the projectable base can function like a stand to raise the height of the mobile terminal device, so that the user can sit in front of a table and watch the electronic screen of the mobile terminal device more comfortably without adjusting the angle of the head. In addition, the electronic device projects an image on the projection surface. The user can interact with the image through the projection surface, which is conducive to improving the interest in learning and further improving the user's interest in learning. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A front view of a simplified schematic diagram of one embodiment of a projectable base of the present application;

[0032] Figure 2 A front view of a simplified schematic diagram of one embodiment of a housing of a projectable base of the present application;

[0033] Figure 3 A cross-sectional view of a simplified schematic diagram of one embodiment of an electronic device of the present application;

[0034] Figure 4 A whole view of a simplified schematic diagram of another embodiment of an electronic device of the present application;

[0035] Figure 5 A simplified schematic diagram of one embodiment of a use scenario of an electronic device of the present application.

[0036] Legend of reference signs:

[0037] 100 projectable base, 1 housing, 11 mounting portion, 12 window portion, 121 opening, 13 base portion, 131 central region, 132 edge region, 14 top surface, 15 heat dissipation hole, 2 magnetic member, 3 projection module, 31 light emitting surface, 4 battery, 5 base coil, 6 photographing module, 7 photographing signal terminal, 8 distance sensor, 9 projection signal terminal, 200 mobile terminal device, VP vertical plane, PS projection surface. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments (or, “embodiments”) of the present application will be described clearly and completely in the present application with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0039] If the application embodiments involve directional indications or positional relationships (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between components in a certain posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. in the application embodiments are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0040] With reference to Figure 1-Figure 3 The application provides an electronic device. The electronic device comprises a mobile terminal device 200 and a projectable base 100. The projectable base 100 comprises a shell 1, a magnetic piece 2 and a projection module 3. The shell 1 comprises a mounting portion 11 and a window portion 12. The window portion 12 comprises an opening 121. When the projectable base 100 is placed on a projection surface PS, the window portion 12 is closer to the projection surface PS relative to the mounting portion 11. The magnetic piece 2 is arranged in the shell 1 and is used to detachably adsorb the mobile terminal device 200 to the mounting portion 11. The projection module 3 is arranged in the window portion 12 and faces the opening 121. The projection module 3 is used to signal connect with the mobile terminal device 200 and project an image on the projection surface PS. When the mobile terminal device 200 is connected to the mounting portion 11, the mobile terminal device 200 does not block the projection route of the projection module 3.

[0041] The mobile terminal device 200 of the application can be a tablet computer, a smart phone, an electronic reader, etc. The window portion 12 is closer to the projection surface PS relative to the mounting portion 11, and the projection module 3 can project an image on the projection surface PS, which means that the light emitting direction of the projection module 3 faces the projection surface PS, rather than the connection position of the mobile terminal device 200. When a user uses the electronic device, the eyes can directly view the direction of the mobile terminal device 200. Therefore, this arrangement can avoid the light emitted by the projection module 3 directly entering the eyes of the user and causing damage to the eyesight of the user. In addition, the light emitted by the projection module 3 enters the eyes of the user after forming a diffuse reflection through the projection surface PS, which can reduce the stimulation of the light on the eyes, weaken the reflection of blue light and make the picture display more soft.

[0042] By setting in this way, the electronic device can protect the user's eyesight to a certain extent, and avoid eye fatigue caused by long time learning. And the installation part 11 is located on the side of the viewing window part 12 away from the projection surface PS, so the projection base 100 can play a role similar to a support to raise the height of the mobile terminal device 200, so that the user can sit in front of the table to watch the electronic screen of the mobile terminal device 200 more comfortably without adjusting the head angle. In addition, the electronic device projects the image on the projection surface PS. The user can interact with the image through the projection surface PS, which is conducive to improving the interest of learning and thus improving the user's interest in learning.

[0043] When the mobile terminal device 200 is connected with the installation part 11, the mobile terminal device 200 does not block the projection path of the projection module 3. This setting can be that the mobile terminal device 200 is flush with the edge of the viewing window part 12 close to the installation part 11, so as to expose the viewing window part 12 as much as possible, avoiding the mobile terminal device 200 blocking the outgoing light of the projection module 3. Or, as shown in the figure, the mobile terminal device 200 protrudes from the installation part 11 close to the edge of the projection surface PS, but still does not block the outgoing light of the projection module 3. This setting makes the mobile terminal device 200 can reduce the possibility of the user's eyes observing the viewing window part 12 to a certain extent. Figure 3

[0044] The projection base 100 can be used to project an image with the same content as the display screen of the mobile terminal device 200, so that the user can choose the learning mode according to his own needs. Or, the projection base 100 can also be used to project an image with different content from the display screen of the mobile terminal device 200, for example, the display screen of the mobile terminal device 200 displays the teacher's lecture video, and the projection module 3 is used to project the image of the test content. This setting makes the image projected by the projection module 3 as an extended screen of the mobile terminal device 200, so that children can receive more information at the same time and meet different learning needs.

[0045] The magnetic connection between the magnetic part 2 and the mobile terminal device 200 can be achieved by the magnetic components of the internal peripherals of the mobile terminal device 200. Then, after the mobile terminal device 200 is connected with the magnetic part 2, the relative positional relationship between the mobile terminal device 200 and the installation part 11 is fixed. Or, in the embodiment that the shell of the mobile terminal device 200 includes a metal part, the magnetic part 2 can be directly adsorbed with the metal part to achieve connection. This setting can reduce the number of parts inside the mobile terminal device 200, and at the same time, it is convenient for the user to adjust the position of the mobile terminal device 200 according to the needs. In addition, the magnetic part 2 can include multiple, so as to match and connect with the mobile terminal device 200 at multiple positions in the installation part 11, thereby improving the stability of the connection. ​

[0046] Optionally, the housing 1 further includes a base portion 13, and the window portion 12 is disposed between the mounting portion 11 and the base portion 13. Figure 3 As shown, the angle α between the base portion 13 and the position where the opening 121 of the window portion 12 is formed is an obtuse angle. The angle α is set to an obtuse angle, so that the space between the window portion 12 and the base portion 13 is increased, thereby allowing the light emitted by the projection module 3 to be further away from the projection base 100 and closer to the projection base 100. When the mobile terminal device 200 is assembled on the mounting portion 11 and the user faces the mobile terminal device 200, from the user's perspective, this setting method can enable the projection base 100 to project an image with a higher picture height, such as Figure 5 As the image height increases, the projection base 100 can project more image content, or project images with a larger screen to reduce the user's reading difficulties.

[0047] Combine Figure 2 In some optional embodiments, the base portion 13 includes a central area 131 and an edge area 132. The edge area 132 and the central area 131 are arranged along the width direction, and the central area 131 is located within the edge area 132. The width direction should be understood as when the mobile terminal device 200 is assembled in the mounting portion 11 and the user faces the mobile terminal device 200, the left and right directions of the base 100 can be projected from the user's perspective. The central area 131 can be centered within the edge area 132, or can be offset from the center. In this embodiment, the opening 121 is arranged toward the central area 131. The angle α between the central area 131 and the window portion 12 is an obtuse angle. The edge area 132 is connected to the mounting portion 11 and is located in the same plane.

[0048] In other words, the mounting portion 11 and edge region 132 of the projection base 100 in this embodiment form a smooth transition, while the central region 131 and window portion 12 are recessed within the planar mounting portion 11 and edge region 132. When a user moves the projection base 100, their hand tends to grip the base 13, with their thumb positioned in the edge region 132 and extending toward the mounting portion 11. This coplanarity of the edge region 132 and mounting portion 11 enhances grip comfort and provides more gripping area for children with smaller hands, facilitating movement.

[0049] exist Figure 1-Figure 3 In the embodiment shown, the position where the window portion 12 is provided with the opening 121 is a plane. The side of the base portion 13 facing the opening 121 is also a plane. Then the angle α can be easily understood as the angle between the plane window portion 12 and the plane base portion 13. Figure 4In the embodiment shown, the opening 121 of the window portion 12 is an arc surface, and the base portion 13 is also a cylindrical design. Then, the angle α should be understood as the angle between the tangent plane of the window portion 12 and the tangent plane of the base portion 13.

[0050] Combine Figure 3 and Figure 4 In some optional embodiments, on the light-emitting side of the projection module 3, the angle β between the base portion 13 and the projection surface PS is greater than or equal to 90°. When the angle β is 90°, the base portion 13 is as follows: Figure 4 This arrangement allows the base portion 13 to be as far away from the light emitted by the projection module 3 as possible, thereby preventing the projected image from being projected onto the base portion 13 and thus affecting the projection effect.

[0051] When the angle β is greater than 90°, such as 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, or 140°, the angle α between the base 13 and the location where the opening 121 of the window 12 is formed is also an obtuse angle. Therefore, the obtuse angle β can move the location where the opening 121 of the window 12 is formed further toward the user. With this arrangement, the light emitted by the projection module 3 can be projected farther from the projection surface PS, thereby enabling the projection module 3 to project an image at a higher height.

[0052] like Figure 3 As shown, in some optional embodiments, in the direction of the housing 1 away from the light-emitting side of the projection module 3, the angle θ between the mounting portion 11 and the window portion 12 is an obtuse angle. The projection module 3 arranged in the opening 121 of the window portion 12 can project an image on the projection surface PS, which means that the opening 121 is facing the projection surface PS. The angle θ between the mounting portion 11 and the window portion 12 is an obtuse angle, which means that when the user is sitting on the light-emitting side of the projection base 100, the mounting portion 11 is tilted backward. In this way, when the mobile terminal device 200 is adsorbed on the mounting portion 11, the display screen of the mobile terminal device 200 is tilted toward the side away from the projection surface PS, so that the user can observe the display screen by slightly lowering his head.

[0053] In addition, in an embodiment where the mobile terminal device 200 includes a camera module, the setting of the angle θ enables the camera module to better collect information such as the user's sitting posture, thereby better determining whether the user's posture is correct at this time, or more easily unlocking the mobile terminal device 200.

[0054] The angle θ is configured such that an angle γ is formed between the surface of the mounting portion 11 connected with the mobile terminal device 200 and the vertical plane VP. In some alternative embodiments, the angle γ between the mounting portion 11 and the vertical plane VP is greater than or equal to 15° and less than or equal to 30°. For example, the angle γ can be 15°, 17°, 19°, 21°, 23°, 25°, 27°, 29°, 30° or any value therebetween. The angle γ within this range can ensure that the mobile terminal device 200 is angled towards the user after being adsorbed to the mounting portion 11, thereby facilitating the user to better observe the display screen of the mobile terminal device 200 in a sitting position, and avoiding the angle difference between the line of sight and the display screen to be too large to cause eye fatigue of the user

[0055] Reference is made to Figure 3 , the housing 1 comprises a top surface 14 disposed away from the projection surface PS. In some embodiments, the height distance between the top surface 14 and the projection surface PS gradually decreases in a direction from the light exit side of the projection module 3 pointing away from the light exit side. In Figure 3 , the light exit side of the projection module 3 is located at the left side. Then in this viewing angle, this embodiment should be understood as the distance between the top surface 14 and the projection surface PS gradually decreases in a direction from left to right. Due to the inclined arrangement of the mounting portion 11, the top surface 14 is inclined in accordance with the inclined direction of the mounting portion 11. Compared with the embodiment in which the top surface 14 is parallel to the projection surface PS, the angle between the top surface 14 and the mounting portion 11 in this embodiment is smaller. When the mobile terminal device 200 is adsorbed to the mounting portion 11, the gravity of the mobile terminal device 200 can be decomposed into a force parallel to the mounting portion 11 and a force perpendicular to the mounting portion 11. The smaller angle between the top surface 14 and the mounting portion 11 makes the angle between the top surface 14 and the force perpendicular to the mounting portion 11 smaller, thereby better supporting the mobile terminal device 200 and improving the fixing stability of the mobile terminal device 200.

[0056] The projection module 3 comprises a light exit surface 31 disposed close to the opening 121. As Figure 3 shown, in some alternative embodiments, the height distance H between the light exit point of the light exit surface 31 of the projection module 3 and the projection surface PS is greater than or equal to 15 cm and less than or equal to 35 cm. For example, the height distance H can be 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, 20 cm, 21 cm, 22 cm, 23 cm, 24 cm, 25 cm, 26 cm, 27 cm, 28 cm, 29 cm, 30 cm, 31 cm, 32 cm, 33 cm, 34 cm, 35 cm or any value therebetween. When the area of the light exit point of the projection module 3 is large, the height distance H should be understood as the height distance between the center point of the light exit point and the projection surface PS.

[0057] Since the projectable base 100 is used for desktop projection instead of long-distance projection, the height distance H is too large, which will result in the size of the projectable base 100 in the height direction being too large. If the height distance H is too small, the projection module 3 will have difficulty in projecting an image with a proper size and clarity on the projection surface PS. The height distance H is suitable for desktop projection, and the image parameters can be adjusted by adjusting the focal length of the projection module 3, so that the image size is suitable for the scene of children learning.

[0058] In an optional embodiment, the projection module 3 is an ultra-short-focus projection module, that is, a projection module 3 with a projection ratio greater than or equal to 0.2:1 and less than or equal to 0.5:1. The ultra-short-focus projection module can project a large-screen image on the projection surface PS in a short distance, and can provide a clear, high-color-reproduction, and high-contrast image. The setting of the ultra-short-focus projection module can effectively control the height distance H, avoid the size of the projectable base 100 in the height direction, and be conducive to the miniaturization of the projectable base 100. Moreover, for children users, high-color images can provide more visual stimulation, thereby improving the interest of children users in learning and improving the learning interest of children.

[0059] In combination Figure 1 In some optional embodiments, the projectable base 100 further comprises a distance sensor 8 electrically connected with the projection module 3. The distance sensor 8 is accommodated in the shell 1 and the collection end faces the opening 121. The distance sensor 8 is used to sense the distance between the user's head and the collection end. When the distance sensor 8 senses that the distance is less than or equal to a threshold value, the projection module 3 stops projecting. When the user's head is too close to the collection end of the distance sensor 8, it means that the user's eyes have a possibility of directly viewing the projection module 3 at this time, and the projection module 3 stops projecting at this time. This setting can avoid the light emitted by the projection module 3 directly entering the user's eyes and causing damage to the user's eyesight. When the user is a child, the child's curiosity is stronger, so it is easier to use the eyes to observe the projection module 3. This setting can better protect the child and improve the peace of mind of the parent when using the projectable base 100.

[0060] Optionally, the projectable base 100 further comprises a photographing module 6 and a photographing signal terminal 7 electrically connected. The photographing module 6 is accommodated in the shell 1 and the light collection side faces the opening 121. The photographing signal terminal 7 is arranged on the mounting portion 11 and is used for signal connection with the mobile terminal device 200. The photographing module 6 is used to photograph the image of the projection surface PS. The photographing signal terminal 7 sends the image photographed by the photographing module 6 to the mobile terminal device 200.

[0061] In combination Figure 5In this embodiment, the projection module 3 projects an image of a test question on the projection surface PS. The shooting module 6 can then be used to capture the user's answer to the test question on the projection surface PS. The shooting signal terminal 7 receives the captured image from the shooting module 6 and sends the image to the mobile terminal device 200. The mobile terminal device 200 can then determine whether the user's answer to the test question is correct based on the image. Alternatively, the mobile terminal device 200 can send the answer to a remote teacher who can determine whether the user's answer to the test question is correct. It is understood that the use scenario of this embodiment is not limited to this. The shooting module 6 can also be used to capture the user's body movements and the like, thereby meeting more different teaching needs.

[0062] It can be seen that the shooting module 6 and the shooting signal terminal 7 improve the user's interactive experience with the projectable base 100, thereby improving the interest in learning using the projectable base 100 and further improving the user's interest in learning. In addition, this arrangement also allows the user to interact with remote personnel in real time, thereby improving the flexibility of the teaching space requirements.

[0063] Since the mobile terminal device 200 is in an active state when it is connected to the projectable base 100, the mobile terminal device 200 needs to be charged. In some alternative embodiments, the projectable base 100 includes a base coil 5 disposed on the mounting portion 11. The mobile terminal device 200 includes a flat coil. When the mobile terminal device 200 is attached to the mounting portion 11, the base coil 5 cooperates with the flat coil to charge the mobile terminal device 200. The cooperation between the base coil 5 and the flat coil can be electromagnetic induction charging or magnetic field resonance charging. This arrangement allows the projectable base 100 to serve as a wireless charging device to charge the mobile terminal device 200. In this way, when the user uses the projectable base 100, the user does not need to additionally attach a power cord to the mobile terminal device 200 to maintain and provide power, which is conducive to improving the endurance of the mobile terminal device 200 while ensuring the learning time. When the user is a child, this arrangement can avoid the child from being exposed to the risk of electric shock.

[0064] The projectable base 100 can be powered by a power adapter and a power cord connected to an outlet. Alternatively, the projectable base 100 includes a receiving cavity for receiving a commercially available battery for powering the internal components of the projectable base 100. Alternatively, in some optional embodiments, the projectable base 100 further includes a battery 4 disposed in the housing 1. The housing 1 includes a power charging and discharging port electrically connectable to the battery 4. The power charging and discharging port is disposed on a side of the housing 1 distal to the opening 121. The battery 4 is disposed such that the projectable base 100 has a certain energy storage capacity. This arrangement allows the projectable base 100 to be used wirelessly. When the user is outdoors or in a situation where there is no suitable outlet, the user can still use the projectable base 100 to study. It can be seen that this embodiment reduces the requirements for the user to use the projectable base 100. The power charging and discharging port is disposed on the back of the projectable base 100, which is understood to mean that the power charging and discharging port is disposed on a side of the projectable base 100 distal to the opening 121. The power charging and discharging port on the back allows the power cord to be disposed as far away from the opening 121 as possible, thereby avoiding the projected image of the projection module 3 being located on the power cord, which would affect the projection effect.

[0065] When the mobile terminal device 200 is attached to the mounting portion 11, the electronic device can require the user to operate the mobile terminal device 200 or the projectable base 100 to start the projection module 3. Alternatively, in some optional embodiments, the projectable base 100 includes a projection signal terminal 9 disposed on the mounting portion 11. The projection signal terminal 9 is electrically connected to the projection module 3 to send an operating signal to the projection module 3 to enable the projection module 3. When the mobile terminal device 200 is connected to the mounting portion 11, the projection signal terminal 9 is electrically connected to the mobile terminal device 200 and directly sends the operating signal. In this embodiment, when the mobile terminal device 200 is connected to the mounting portion 11, the projection module 3 immediately projects an image on the projection surface PS. This arrangement allows the electronic device to be used by younger users without the need for a parent to be present at all times. The user only needs to attach the mobile terminal device 200 to the mounting portion 11 to start the projection of the projectable base 100, which helps to reduce the difficulty of operating the projectable base 100 and avoids causing the user to become frustrated and distracted, which affects the user's interest in learning.

[0066] The projection signal terminal 9 can be provided on the surface of the mounting portion 11 and can be moved toward the inside of the housing 1 under force. Then when the mobile terminal device 200 is connected to the mounting portion 11, the mobile terminal device 200 is attached to the surface of the mounting portion 11, thereby pressing the projection signal terminal 9 to move toward the inside of the housing 1. At this time, the projection signal terminal 9 can be energized and send a working signal to control the operation of the projection module 3. In other embodiments, the projection signal terminal 9 can be provided inside the housing 1 and electrically connected to the mobile terminal device 200 through a Hall, an electromagnetic coil, or the like. Similarly, the shooting signal terminal 7 can also be provided on the surface of the mounting portion 11, or provided inside the housing 1. This application will not elaborate on this.

[0067] In addition, the number and arrangement of the projection signal terminals 9 and the shooting signal terminals 7 are not limited in this application. Figure 1 The arrangement and number of the illustrated embodiments are intended to be exemplary rather than restrictive. The projection signal terminals 9 and the shooting signal terminals 7 may each include more terminals, thereby reducing the possibility of false triggering.

[0068] Alternatively, as Figure 4 As shown, the housing 1 also includes a heat dissipation hole 15. The heat dissipation hole 15 is provided on a side of the housing 1 away from the opening 121. Components such as the projection module 3 may generate heat in real time during operation. The provision of the heat dissipation hole 15 allows the heat inside the housing 1 to be dissipated to the outside in a timely manner through the heat dissipation hole 15, thereby avoiding heat accumulation in the projection base 100 causing damage to internal components and injury to the user. In addition, the heat of the projection base 100 can be conducted to the mobile terminal device 200 through the mounting portion 11, so the timely dissipation of heat can also protect the device of the mobile terminal.

[0069] exist Figure 3 and Figure 4 In the illustrated embodiment, the opening 121 is open. This is intended to be illustrative and not restrictive. The opening 121 can be used to assemble structures such as glass sheets or resin sheets, thereby sealing the opening 121 and preventing external impurities from entering the housing 1 through the opening 121 and damaging the internal components.

[0070] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A projection base, characterized in that: include: The housing comprises a mounting portion and a window portion; the window portion comprises an opening; when the projection base is placed on a projection surface, the window portion is closer to the projection surface relative to the mounting portion; a magnetic member, disposed in the housing, for adsorbing an external device onto the mounting portion; The projection module is arranged in the window portion and faces the opening; the projection module is used to connect with the external device signal and project an image on the projection surface.

2. The projection base according to claim 1, wherein: The housing further includes a base portion, and the window portion is arranged between the mounting portion and the base portion; the angle between the base portion and the position where the opening of the window portion is formed is an obtuse angle.

3. The projection base according to claim 2, wherein: On the light-emitting side of the projection module, an angle between the base portion and the projection surface is greater than or equal to 90°.

4. The projection base according to claim 1, wherein: In a direction in which the housing is away from the light-emitting side of the projection module, an angle between the mounting portion and the window portion is an obtuse angle.

5. The projectable base according to claim 4, wherein: The housing further includes a base portion, the window portion is disposed between the mounting portion and the base portion; the base portion includes a central region and an edge region; the edge region and the central region are arranged along a width direction, and the central region is located within the edge region; the opening faces the central region; The angle between the central area and the window portion is an obtuse angle; the edge area is connected to the mounting portion and is located in the same plane.

6. The projection base according to claim 4, wherein: The housing includes a top surface disposed away from the projection surface; in a direction from the light-emitting side of the projection module to the direction away from the light-emitting side, a height distance between the top surface and the projection surface gradually decreases.

7. The projection base according to claim 4, wherein: An included angle between the mounting portion and the vertical plane is greater than or equal to 15° and less than or equal to 30°.

8. The projection base according to claim 1, wherein: The projection module includes a light-emitting surface arranged near the opening; the height distance between the light-emitting point of the projection module located on the light-emitting surface and the projection surface is greater than or equal to 15 cm and less than or equal to 35 cm.

9. The projectable base according to claim 1, wherein: The housing further comprises a heat dissipation hole; the heat dissipation hole is arranged on a side of the housing away from the opening; and / or, The projectable base further comprises a battery disposed in the housing; the housing comprises a power charging and discharging port electrically connectable to the battery; the power charging and discharging port is disposed on a side of the housing away from the opening; and / or, The projection base further includes a charging coil; the charging coil is arranged on the mounting portion and is used to charge the external device.

10. The projectable base according to claim 1, wherein: The projection base further includes an electrically connected shooting module and a shooting signal terminal; the shooting module is housed in the housing, with the light-collecting side facing the opening; the shooting signal terminal is provided on the mounting portion for signal connection with the external device; the shooting module is used to capture an image of the projection surface; the shooting signal terminal is used to send the image captured by the shooting module to the external device; and / or The projection base also includes a distance sensor electrically connected to the projection module; the distance sensor is housed in the housing with its collection end facing the opening; the distance sensor is used to sense the distance between the user's head and the collection end; when the distance sensor senses that the distance is less than or equal to a threshold, the projection module stops projecting.

11. The projectable base according to any one of claims 1 to 10, characterized in that: The projection module is an ultra-short-throw projection module.

12. An electronic device, characterized in that: include: Mobile terminal devices; According to any one of claims 1 to 11, the mobile terminal device is detachably connected to the mounting portion via the magnetic member; when the mobile terminal device is connected to the mounting portion, the mobile terminal device does not block the projection path of the projection module.

13. The electronic device according to claim 12, wherein: The projectable base includes a base coil arranged on the mounting portion; the mobile terminal device includes a flat coil; when the mobile terminal device is attached to the mounting portion, the base coil cooperates with the flat coil to charge the mobile terminal device.

14. The electronic device according to claim 12, wherein: The projection base includes a projection signal terminal provided on the mounting portion; the projection signal terminal is electrically connected to the projection module to send a working signal to the projection module to enable the projection module; When the mobile terminal device is connected to the mounting portion, the projection signal terminal is electrically connected to the mobile terminal device and directly transmits the working signal.

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