CN212012162U

CN212012162U - Projection device

Info

Publication number: CN212012162U
Application number: CN202020113008.XU
Authority: CN
Inventors: 赵品群; 胡震宇
Original assignee: Shenzhen Huole Science and Technology Development Co Ltd
Current assignee: Shenzhen Huole Science and Technology Development Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-24
Anticipated expiration: 2030-01-17

Abstract

The embodiment of the application provides projection equipment, which comprises a shell, a projection component and a wireless charging component, wherein the shell is provided with a bottom plate and a top plate arranged opposite to the bottom plate, the top plate is provided with a chargeable area, the chargeable area of the top plate can be used for placing electronic equipment to be charged, the projection component is fixed between the top plate and the bottom plate, the wireless charging component comprises a transmitting coil, a shielding layer and a first circuit board which are sequentially stacked, the transmitting coil is fixedly connected and attached to one side, close to the bottom plate, of the top plate, the shielding layer can shield electromagnetic signals radiated by the transmitting coil towards the first circuit board, the first circuit board is fixedly connected with the top plate and provides pressure for the shielding layer to be attached to the transmitting coil, the shielding layer and the projection assembly are isolated by the first circuit board, and the transmitting coil is electrically connected with the first circuit board so as to control the transmitting coil to wirelessly charge the electronic equipment. Above-mentioned equipment can compromise projection function and wireless function of charging, guarantees transmitting coil and projection subassembly mutual noninterference.

Description

Projection device

Technical Field

The application relates to the technical field of projection equipment, in particular to projection equipment.

Background

With the development of science and technology, society gradually enters the age of everything interconnection. The user can control other equipment through the smart mobile phone that hand-carries, for example utilize the smart mobile phone can control projection equipment through the bluetooth and broadcast multimedia information such as film, TV drama or comprehensive art program, but the smart mobile phone consumes the electric energy easily, and projection equipment's functional structure is comparatively single at present, is difficult to provide continuation of the journey electric energy for the smart mobile phone.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a projection device, which comprises a shell, a projection component and a wireless charging component, wherein the shell is provided with a bottom plate and a top plate which is arranged relative to the bottom plate, the top plate is provided with a chargeable area, the chargeable area of the top plate can be used for placing electronic equipment to be charged, the projection component is fixed between the top plate and the bottom plate, the wireless charging component comprises a transmitting coil, a shielding layer and a first circuit board which are sequentially stacked, the transmitting coil is fixedly connected and attached to one side, close to one side of the bottom plate, of the top plate and aligned to the chargeable area, the shielding layer can shield electromagnetic signals radiated by the transmitting coil towards the first circuit board, the first circuit board is fixedly connected with the top plate and provides pressure for the shielding layer to be attached to the transmitting coil, and the transmitting coil, the shielding layer and the projection component are isolated by the first circuit board, the first circuit board is electrically connected with the transmitting coil so as to control the transmitting coil to wirelessly charge the electronic equipment.

In the projection device provided by the embodiment of the application, the top plate is provided with the chargeable area, the chargeable area of the top plate can be used for placing the electronic device to be charged, and the emission coil is fixedly connected and attached to one side, close to the bottom plate, of the top plate, and aligned with the chargeable area, the shielding layer may shield an electromagnetic signal radiated by the transmitting coil toward the first circuit board, the first circuit board is fixedly connected with the top plate and provides pressure for the shielding layer to be attached to the transmitting coil, the transmitting coil is pressed between the top plate and the shielding layer, so that the electromagnetic signal of the transmitting coil can be prevented from leaking into the shell, thereby guarantee transmitting coil with projection subassembly can normal work mutually noninterference simultaneously, then projection equipment can compromise projection function and wireless function of charging. Moreover, the wireless charging assembly is compact in structure and small in occupied space, and the arrangement space of the projection assembly can be prevented from being occupied by the wireless charging assembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a projection apparatus provided in an embodiment of the present application;

FIG. 2 is an enlarged view A of FIG. 1;

fig. 3 is an exploded view of the wireless charging assembly of fig. 1;

fig. 4 is a schematic structural diagram of a projection apparatus provided in the embodiment of the present application;

FIG. 5 is an enlarged schematic view of FIG. 1 at A;

FIG. 6 is an enlarged schematic view of FIG. 1 at A;

fig. 7 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a projection apparatus provided in an embodiment of the present application.

Detailed Description

Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present application provides a projection apparatus 100, where the projection apparatus 100 includes a housing 10, a projection assembly 20 and a wireless charging assembly 30. The housing 10 is provided with a bottom plate 11 and a top plate 12 arranged opposite to the bottom plate 11, the top plate 12 is provided with a chargeable area 13, and the chargeable area 13 of the top plate 12 can be used for placing electronic equipment to be charged. The projection assembly 20 is fixed between the top plate 12 and the bottom plate 11. The wireless charging assembly 30 includes a transmitting coil 31, a shielding layer 32, and a first circuit board 33, which are sequentially stacked. The transmitting coil 31 is fixedly connected and attached to one side of the top plate 12 close to the bottom plate 11 and aligned with the chargeable area 13, and the shielding layer 32 can shield an electromagnetic signal radiated by the transmitting coil 31 towards the first circuit board 33. The first circuit board 33 is fixedly connected to the top plate 12, the shielding layer 32 is attached to the pressure of the transmitting coil 31, and the first circuit board 33 is electrically connected to the transmitting coil 31 to control the transmitting coil 31 to wirelessly charge the electronic device.

The chargeable area 13 is arranged on the top plate 12, the chargeable area 13 of the top plate 12 can be used for placing electronic equipment to be charged, and the top plate 12 is fixedly connected and attached to one side, close to the bottom plate 11, of the top plate 12 through the transmitting coil 31, and aligned with the chargeable area 13, the shielding layer 32 may shield the electromagnetic signal radiated by the transmitting coil 31 toward the first circuit board 33, the first circuit board 33 is fixedly connected to the top plate 12, provides the pressure of the shielding layer 32 against the transmitting coil 31, so that the transmitting coil 31 is pressed between the top plate 12 and the shielding layer 32, the electromagnetic signal of the transmitting coil 31 can be prevented from leaking into the interior of the housing 10, thereby ensuring that the transmitting coil 31 and the projection component 20 can work normally and simultaneously without interfering with each other, and the projection device 100 can have both the projection function and the wireless charging function. Moreover, the wireless charging assembly 30 has a compact structure and occupies a small space, so that the arrangement space of the projection assembly 20 can be prevented from being occupied.

In the present embodiment, the housing 10 has a substantially rectangular block shape. The housing 10 may carry and protect the internal components of the projection device 100. The top plate 12 is spaced apart from the bottom plate 11. The housing 10 is further provided with a side plate 14, and the side plate 14 is fixed between the top plate 12 and the bottom plate 11. The side plates 14, the top plate 12 and the bottom plate 11 form an accommodating space 15 therebetween, and the accommodating space 15 may serve as an arrangement space for internal components of the projection apparatus 100. When the projection apparatus 100 is placed on a platform, the bottom plate 11 is located on a side of the housing 10 close to the bottom surface, and the top plate 12 is located on a side of the housing 10 away from the ground, so that the top plate 12 can be used as a platform for placing articles. The top plate 12 is provided with a chargeable area 13, that is, a user can place an electronic device (for example, a smart phone) to be charged in the chargeable area 13 of the top plate 12 for charging, so that the projection device 100 can realize a dual-purpose function, that is, a projection function and a wireless charging function. It is understood that the electronic device supports a wireless charging function, and the electronic device is provided with an induction coil for wireless charging. The electronic device can be a smart phone, a smart watch, a notebook computer, a tablet computer, a wearable smart device or the like.

The projection assembly 20 and the wireless charging assembly 30 are both accommodated in the accommodating space 15. The transmitting coil 31 is attached to the top plate 12 and aligned to the wireless charging area, the shielding layer 32 is stacked on a side of the transmitting coil 31 away from the top plate 12, and the transmitting coil 31 is located in the orthographic projection area of the top plate 12 of the shielding layer 32, wherein the shielding layer 32 is a magnetic shielding sheet, and the shielding layer 32 can shield the electromagnetic signal radiated from the transmitting coil 31 in the direction away from the top plate 12, so as to avoid the leakage of the electromagnetic signal of the transmitting coil 31.

The first circuit board 33 is stacked on the shielding layer 32 on the side away from the transmitting coil 31, the first circuit board 33 is electrically connected to the transmitting coil 31, the first circuit board 33 can control the transmitting coil 31 to generate an electromagnetic field, and the transmitting coil 31 can be coupled with an induction coil of the electronic device through the electromagnetic field to realize wireless charging. The first circuit board 33 is fixedly connected to the top plate 12, so that a contact force is applied to the shielding layer 32 and the transmitting coil 31, and the top plate 12, the transmitting coil 31 and the shielding layer 32 are sequentially attached to form a compact stacked structure, so that the occupied space can be reduced; meanwhile, the first circuit board 33 plays a role in encapsulating the transmitting coil 31 and the shielding layer 32, so that the transmitting coil 31 and the shielding layer 32 can be ensured to be stable relative to the top plate 12.

Referring to fig. 1, fig. 2 and fig. 3, further, the projection assembly 20 includes a projection device 21 and a second circuit board 22 electrically connected to the projection device 21, the projection apparatus 100 further includes a power supply assembly 50, the projection device 21 and the second circuit board 22 are all fixedly connected to the housing 10, the power supply assembly 50 is electrically connected to the second circuit board 22 and the first circuit board 33, so as to supply power to the transmitting coil 31 via the first circuit board 33 and supply power to the projection device 21 via the second circuit board 22.

In the present embodiment, the side plate 14 is provided with an optical lens 16, and the optical lens 16 can transmit light. The projection device 21 is fixedly connected to the housing 10 and is accommodated in the accommodating space 15. The projection device 21 has a projection function, the projection device 21 is aligned with the optical lens 16, the projection device 21 can emit projection light to the optical lens 16, and the projection light can be projected on a preset curtain after being amplified by the optical lens 16 to form a projection picture. The second circuit board 22 is fixedly connected to the housing 10 and is accommodated in the accommodating space 15. The second circuit board 22 is located on a side of the first circuit board 33 facing away from the top plate 12. The second circuit board 22 is electrically connected to the projection device 21, and the second circuit board 22 may send a control signal to the projection device 21 to control the projection device 21 to emit projection light. The power supply module 50 is accommodated in the accommodating space 15, the power supply module 50 is electrically connected to the first circuit board 33 and the second circuit board 22, so as to supply power to the transmitting coil 31 through the first circuit board 33, and supply power to the projection device 21 through the second circuit board 22, and then the projection module 20 and the wireless charging module 30 both obtain electric energy from the power supply module 50, which is beneficial to simplifying the internal structure of the projection device 100. The power supply unit 50 may be a built-in battery, and the power supply unit 50 may also be a power supply module that is connected to an external power supply.

Further, an orthographic projection of the second circuit board 22 on the top plate 12 is at least partially coincident with an orthographic projection of the first circuit board 33 on the top plate 12. The first circuit board 33 is disposed adjacent to the top plate 12, the first circuit board 33 and the top plate 12 jointly press the transmitting coil 31 and the shielding layer 32, the second circuit board 22 is located on a side of the first circuit board 33 facing away from the top plate 12, and the second circuit board 22 is substantially parallel to the first circuit board 33. The transmitting coil 31 is shielded by the shielding layer 32, so that the electromagnetic signal of the transmitting coil 31 is prevented from leaking in the direction of deviating from the top plate 12, the second circuit board 22 is allowed to be positioned on the side of the first circuit board 33 deviating from the top plate 12, and the orthographic projection of the second circuit board 22 on the top plate 12 is allowed to at least partially coincide with the orthographic projection of the first circuit board 33 on the top plate 12, so that the first circuit board 33 and the second circuit board 22 are reasonably arranged in the shell 10, and the occupied space is small.

Referring to fig. 4, further, the second circuit board 22 and the first circuit board 33 are disposed at an interval, so that an airflow channel 17 is formed between the second circuit board 22 and the first circuit board 33, the housing 10 is provided with a vent 41 communicating with the airflow channel 17, the projection apparatus 100 further includes a fan 40 fixedly connected to the housing 10, the fan 40 is electrically connected to the first circuit board 33 or the second circuit board 22, and the fan 40 can blow the air in the airflow channel 17 to the vent 41. In this embodiment, the first circuit board 33 is disposed adjacent to the top plate 12, the second circuit board 22 is disposed away from the top plate 12, the second circuit board 22 is parallel to the first circuit board 33, and a space is disposed between the second circuit board 22 and the first circuit board 33, so that the airflow channel 17 is formed between the second circuit board 22 and the first circuit board 33. First circuit board 33 with the heat that second circuit board 22 during operation produced can give off extremely in the airflow channel 17, pass through again first circuit board 33 or second circuit board 22 control fan 40 will gas in the airflow channel 17 blows to vent 41, thereby it is right first circuit board 33 with second circuit board 22 carries out effectual heat dissipation cooling, is favorable to reducing projection equipment 100's internal temperature, for wireless charging assembly 30 with projection assembly 20 provides good operational environment, and then improves operational reliability, increase of service life.

Referring to fig. 4, further, the second circuit board 22 is located between the first circuit board 33 and the bottom plate 11, a first distance is provided between the second circuit board 22 and the first circuit board 33, a second distance is provided between the second circuit board 22 and the bottom plate 11, the second distance is greater than the first distance, and the power module 50 is located in the second distance. In the present embodiment, the first pitch forms the airflow passage 17. The second distance provides a mounting space for the power supply assembly 50, and the power supply assembly 50 can be mounted in the second distance. The second distance is larger than the first distance, which provides sufficient space for the power module 50 to be mounted.

Referring to fig. 5, further, a central placement area 34 is formed inside the transmitting coil 31, the wireless charging assembly 30 further includes a pressure sensing device 35 electrically connected to the first circuit board 33, the pressure sensing device 35 is fixed in the central placement area 34 and abuts against a portion of the top plate 12 corresponding to the chargeable area 13, the pressure sensing device 35 can sense a pressure transmitted to the chargeable area 13, the first circuit board 33 can determine whether to generate a charging signal according to the pressure, and the charging signal is used for controlling the transmitting coil 31 to supply power to the electronic device.

In the present embodiment, the pressure sensing device 35 is a pressure sensor, for example, the pressure sensing device 35 may be a resistance-type pressure sensor, a capacitance-type pressure sensor, a resonance-type pressure sensor, or a pressure-sensitive strain gauge, and may be provided according to actual needs, which is not limited herein. The central placement area 34 provides an arrangement space for the pressure sensitive device 35. The pressure sensitive devices 35 are arranged in the central prevention zone so that the pressure sensitive devices 35 can be aligned with and abut against the chargeable area 13 of the top plate 12. When the electronic device is placed in the chargeable area 13, the pressure sensing device 35 may sense a pressing force transmitted from the electronic device to the chargeable area 13, and the first circuit board 33 may detect that the pressing force satisfies a first preset pressure threshold, generate a charging signal, and control the transmitting coil 31 to generate an electromagnetic field according to the charging signal, so as to couple with an inductive coil of the electronic device, thereby implementing wireless charging of the electronic device; when the electronic device is separated from the chargeable area 13, the first circuit board 33 can detect that the abutting pressure meets a second preset pressure threshold, and then the transmitting coil 31 is controlled to stop working, so that intelligent charging and power off are realized, and electric energy saving is facilitated. Wherein the second preset pressure threshold is less than the first preset pressure threshold.

Referring to fig. 6, in one embodiment, a positioning groove 42 is disposed on a side of the top plate 12 away from the transmitting coil 31, the chargeable area 13 is formed in an area where the positioning groove 42 is located, and the positioning groove 42 is used for placing the electronic device so as to align the electronic device with the transmitting coil 31 and the pressure sensing device 35. In this embodiment, the shape and size of the positioning groove 42 are matched with those of the electronic device. The positioning groove 42 is used for placing the electronic device, and can position the electronic device, so as to ensure that the electronic device is positioned in the chargeable area 13, and the electronic device is aligned with the transmitting coil 31, thereby ensuring the charging efficiency of the transmitting coil 31 to the electronic device. Moreover, the thickness of the portion of the top plate 12 corresponding to the chargeable area 13 is reduced, which is beneficial to reducing the loss of the chargeable area 13 to the electromagnetic signal emitted by the transmitting coil 31 and improving the sensitivity of the pressure sensing device 35 for sensing the electronic equipment placed in the chargeable area 13.

Referring to fig. 7, in another embodiment, two limiting members 43 are oppositely disposed on a side of the top plate 12 away from the transmitting coil 31, a region between the two limiting members 43 forms the chargeable region 13, both of the two limiting members 43 are elastic members, and the two limiting members 43 are used for applying an elastic clamping force to the electronic device placed in the chargeable region 13. In the present embodiment, the shapes of the two stoppers 43 are not particularly limited, and may be set according to actual needs. The two limiting parts 43 can play a limiting role, when the electronic device is placed in the chargeable area 13, the two limiting parts 43 are clamped on two opposite sides of the electronic device, and can stabilize and position the electronic device, so that the electronic device is accurately positioned in the chargeable area 13, and the charging effect is further ensured. The two limiting members 43 may be soft rubber members, and the two limiting members 43 may be elastically deformed, so as to facilitate embedding the electronic device between the two limiting members 43, or detaching and separating the electronic device from the two limiting members 43.

Referring to fig. 8, further, the top plate 12 is provided with at least one light-transmitting portion 44, one side of the first circuit board 33 close to the top plate 12 is provided with at least one indicator light 36, the at least one indicator light 36 is respectively aligned with the at least one light-transmitting portion 44, and the at least one indicator light 36 can respectively emit an indicator light through the at least one light-transmitting portion 44 to indicate the operating state of the emitting coil 31. In the present embodiment, the top plate 12 is provided with a non-light-transmitting portion 44 except for the light-transmitting portion 44. The at least one light-transmitting portion 44 may include a plurality of light-transmitting portions 44 arranged in sequence. The at least one indicator 36 may include a plurality of indicator 36 arranged in sequence, the plurality of indicator 36 may be aligned with the plurality of light-transmitting portions 44, respectively, and the plurality of indicator 36 may emit light toward the plurality of light-transmitting portions 44, respectively. Be provided with wireless communication module 37 on the first circuit board 33, wireless communication module 37 can be bluetooth communication module, first circuit board 33 passes through wireless communication module 37 with electronic equipment establishes wireless communication is connected, with through wireless communication module 37 acquires electronic equipment's electric quantity, first circuit board 33 confirms pilot lamp 36 quantity according to the electric quantity, and then the control corresponds a plurality of pilot lamp 36 emission light of pilot lamp 36 quantity, thereby the user can follow see on roof 12 electronic equipment's the electric quantity condition.

In the projection apparatus 100 provided in the embodiment of the application, the top plate 12 is provided with the chargeable area 13, the chargeable area 13 of the top plate 12 can be used for placing an electronic apparatus to be charged, the emission coil 31 is fixedly connected and attached to one side of the top plate 12 close to the bottom plate 11 and aligned with the chargeable area 13, the shielding layer 32 can shield the electromagnetic signal radiated by the emission coil 31 towards the first circuit board 33, the first circuit board 33 is fixedly connected to the top plate 12 and provides the pressure for attaching the shielding layer 32 to the emission coil 31, so that the emission coil 31 is pressed between the top plate 12 and the shielding layer 32, the electromagnetic signal of the emission coil 31 can be prevented from leaking into the housing 10, and the emission coil 31 and the projection component 20 can work normally without interference, the projection device 100 may combine the projection function and the wireless charging function. Moreover, the wireless charging assembly 30 has a compact structure and occupies a small space, so that the arrangement space of the projection assembly 20 can be prevented from being occupied.

In summary, although the present application has been described with reference to the preferred embodiments, the present application is not limited to the preferred embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the protection scope of the present application is determined by the scope of the appended claims.

Claims

1. A projection device is characterized in that the projection device comprises a shell, a projection component and a wireless charging component, the shell is provided with a bottom plate and a top plate arranged opposite to the bottom plate, the top plate is provided with a chargeable area, the chargeable area of the top plate can be used for placing electronic equipment to be charged, the projection component is fixed between the top plate and the bottom plate, the wireless charging component comprises a transmitting coil, a shielding layer and a first circuit board which are sequentially stacked, the transmitting coil is fixedly connected and attached to one side, close to the bottom plate, of the top plate and aligned to the chargeable area, the shielding layer can shield electromagnetic signals radiated by the transmitting coil towards the first circuit board, the first circuit board is fixedly connected with the top plate and provides pressure for the shielding layer to be attached to the transmitting coil, and the transmitting coil, the shielding layer and the projection component are isolated by the first circuit board, the first circuit board is electrically connected with the transmitting coil so as to control the transmitting coil to wirelessly charge the electronic equipment.

2. The projection device of claim 1, wherein the projection assembly includes a projection device and a second circuit board electrically connected to the projection device, the projection device further including a power supply assembly, the projection device, and the second circuit board all fixedly connected to the housing, the power supply assembly electrically connected to the second circuit board and the first circuit board to power the transmit coil via the first circuit board and to power the projection device via the second circuit board.

3. The projection device of claim 2, wherein the second circuit board is spaced apart from the first circuit board such that an airflow channel is formed between the second circuit board and the first circuit board, the housing is provided with a vent hole communicating with the airflow channel, the projection device further comprises a fan fixedly connected to the housing, the fan is electrically connected to the first circuit board or the second circuit board, and the fan blows air in the airflow channel toward the vent hole.

4. The projection device of claim 3, wherein an orthographic projection of the second circuit board on the top plate at least partially coincides with an orthographic projection of the first circuit board on the top plate.

5. The projection device of claim 2, wherein the second circuit board is positioned between the first circuit board and the chassis, the second circuit board is positioned at a first spacing from the first circuit board, the second circuit board is positioned at a second spacing from the chassis, the second spacing is greater than the first spacing, and the power component is positioned within the second spacing.

6. The projection device of claim 2, wherein the housing further has a side plate fixedly connecting the bottom plate and the top plate, and an optical lens fixed to the side plate, the projection device being aligned with the optical lens to emit the projection light outward through the optical lens.

7. The projection apparatus as claimed in claim 1, wherein a central placement area is formed inside the transmitting coil, the wireless charging assembly further includes a pressure sensing device electrically connected to the first circuit board, the pressure sensing device is fixed in the central placement area and abuts against a portion of the top plate corresponding to the chargeable area, the pressure sensing device can sense a pressing force transmitted to the chargeable area, and the first circuit board can determine whether to generate a charging signal according to the pressing force, the charging signal is used for controlling the transmitting coil to supply power to the electronic apparatus.

8. The projection device of claim 7, wherein a side of the top plate facing away from the transmitter coil is provided with a positioning recess, the positioning recess forming the chargeable area, the positioning recess being configured to receive the electronic device to align the electronic device with the transmitter coil and the pressure sensing device.

9. The projection apparatus according to claim 7, wherein the top plate is provided with two opposing position-limiting members on a side away from the transmitting coil, a region between the two position-limiting members forms the chargeable region, and both of the two position-limiting members are elastic members for applying an elastic clamping force to an electronic device placed in the chargeable region.

10. The projection apparatus as claimed in any one of claims 1 to 9, wherein the top plate is provided with at least one light-transmitting portion, and a side of the first circuit board adjacent to the top plate is provided with at least one indicator light, the at least one indicator light being respectively aligned with the at least one light-transmitting portion, and the at least one indicator light being respectively capable of emitting an indicator light through the at least one light-transmitting portion to indicate an operating state of the emission coil.