CN219392448U

CN219392448U - Projector with a light source for projecting light

Info

Publication number: CN219392448U
Application number: CN202223526440.XU
Authority: CN
Inventors: 张昇; 孙旭涛
Original assignee: Foxstar Technology Co ltd; Henan Costar Group Co Ltd
Current assignee: Foxstar Technology Co ltd; Henan Costar Group Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-07-21
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a projector, comprising: a projection drive system and a data processing system; the data receiving end of the projection driving system is connected with the data transmitting end of the data processing system; wherein the data processing system comprises: a data processing module and an NFC module; the first output end of the NFC module is connected with the first receiving end of the data processing module, and the first output end of the data processing module is connected with the data receiving end of the projection driving system; the NFC module is configured to receive connection data of the wireless network sent by the mobile terminal and send the connection data to the data processing module; the data processing module is configured to connect to the wireless network according to connection data. The projector can be directly connected with the network through the connection data of the wireless network sent by the mobile terminal, and a user does not need to manually input wireless networking information, so that the user experience is improved.

Description

Projector with a light source for projecting light

Technical Field

The present disclosure relates to projection technology, and in particular, to a projector.

Background

Along with development of science and technology, the intelligent of projecting apparatus is more and more diversified, for example can listen to the music, watch online video, but as long as the WIFI password changes, or under the projecting apparatus moved to new environment, under the circumstances that involves equipment switching WIFI name and WIFI password, all need the user to search WIFI manually, input new WIFI password, complex operation influences user experience.

Disclosure of Invention

For the above reasons, embodiments of the present utility model provide a projector.

The projector of the embodiment includes: a projection drive system and a data processing system; the data receiving end of the projection driving system is connected with the data transmitting end of the data processing system;

wherein the data processing system comprises: a data processing module and a near field communication NFC module; the first output end of the NFC module is connected with the first receiving end of the data processing module, and the first output end of the data processing module is connected with the data receiving end of the projection driving system;

the NFC module is configured to receive connection data of a wireless network sent by the mobile terminal and send the connection data to the data processing module; the data processing module is configured to connect to the wireless network according to the connection data.

Optionally, the NFC module includes: a rectifying circuit and an NFC circuit;

the output end of the rectifying circuit is connected with the voltage end of the NFC circuit; and the output end of the NFC circuit is connected with the first receiving end of the data processing module.

Optionally, the rectifying circuit includes: the device comprises a rectification chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor and a first inductor;

the input end of the rectifying chip is connected with an external power supply, the signal end of the rectifying chip is connected with the first end of the first resistor, the power end of the rectifying chip is connected with the second end of the first resistor, the control end of the rectifying chip is connected with the first end of the second resistor, the output end of the rectifying chip is connected with the first end of the first inductor and the first end of the first capacitor, and the feedback end of the rectifying chip is connected with the first end of the third resistor;

the second end of the first resistor is connected with the first end of the second capacitor; the second end of the second capacitor is grounded; the second end of the second resistor is connected with the second end of the first capacitor;

the second end of the first inductor is connected with the voltage end of the NFC circuit; the second end of the third resistor is connected with the second end of the first inductor through the fourth resistor; the second end of the third resistor is grounded through the fifth resistor.

Optionally, the NFC circuit includes: NFC chip, read chip, sixth resistance, seventh resistance, eighth resistance, ninth resistance, second inductance, third capacitance, fourth capacitance, fifth capacitance, sixth capacitance, seventh capacitance, eighth capacitance, ninth capacitance, tenth capacitance, eleventh capacitance, twelfth capacitance and crystal oscillator circuit;

the first end of the NFC chip is connected with the output end of the rectifying circuit through the sixth resistor, the second end of the NFC chip is connected with the output end of the rectifying circuit through the seventh resistor, the third end of the NFC chip is connected with the output end of the rectifying circuit, the fourth end of the NFC chip is connected with the first end of the second inductor, the fifth end of the NFC chip is connected with the second end of the third capacitor and the first end of the fourth capacitor, the sixth end of the NFC chip is connected with the first end of the third inductor, the seventh end of the NFC chip is connected with the second end of the eighth resistor, the eighth end of the NFC chip is connected with the first end of the eighth resistor, the crystal oscillator end of the NFC chip is connected with the first end of the eighth resistor through the crystal oscillator circuit and the twelfth capacitor in sequence, and the signal end of the NFC chip is connected with the signal end of the reading chip;

the second end of the second inductor is connected with the first end of the third capacitor, and the second end of the second inductor is connected with the first end of the sixth capacitor and the first end of the seventh capacitor through the fifth capacitor; the second end of the third inductor is connected with the second end of the fourth capacitor, and the second end of the third inductor is connected with the second end of the ninth capacitor and the second end of the tenth capacitor through the eighth capacitor; the second end of the eighth resistor is connected with the first end of the sixth capacitor through a ninth resistor and the eleventh capacitor in sequence; the second end of the sixth capacitor, the second end of the seventh capacitor, the first end of the ninth capacitor and the first end of the tenth capacitor are all grounded.

Optionally, the NFC module further includes: a step-down circuit;

the receiving end of the voltage reduction circuit is connected with an external power supply, and the output end of the voltage reduction circuit is connected with the receiving end of the rectifying circuit.

Optionally, the data processing system further comprises: a communication module;

the output end of the communication module is connected with the second receiving end of the data processing module.

Optionally, the communication module includes: a 4G/5G module and a signal stabilizing circuit;

the output end of the 4G/5G module is connected with the second receiving end of the data processing module;

and the antenna end of the 4G/5G module is connected with the signal stabilizing circuit.

Optionally, the data processing system further comprises: the power amplifier comprises a power amplifier module, an interface module and a power supply module;

the receiving end of the power amplification module is connected with the second output end of the data processing module;

the output end of the interface module is connected with the third receiving end of the data processing module;

the power supply end of the power supply module is connected with an external power supply, and the output end of the power supply module is connected with the voltage end of the data processing module.

Optionally, the interface module includes: USB interface, HDMI interface and TYPE-C interface.

Optionally, the power module includes: an electric quantity storage unit and a charging unit;

the receiving end of the electric quantity storage unit is connected with the output end of the charging unit, and the output end of the electric quantity storage unit is connected with the voltage end of the data processing module;

the receiving end of the charging unit is connected with an external power supply.

Advantageous effects of the utility model

The projector of the embodiment mainly comprises a projection driving system and a data processing system, wherein the data processing system comprises: the NFC module is configured to receive connection data of the wireless network sent by the mobile terminal and send the connection data to the data processing module, such as a WIFI name and a WIFI password; the data processing module is configured to be connected with the wireless network according to the connection data, so that the connection data of the wireless network sent by the mobile terminal are directly connected with the network, the user does not need to manually input wireless networking information, the user experience is improved, and the user experience is improved.

Drawings

Fig. 1 is a schematic structural diagram of a projector according to an embodiment of the present utility model.

Fig. 2 is a schematic circuit diagram of a rectifying circuit according to an embodiment of the present utility model.

Fig. 3 is a schematic circuit diagram of an NFC circuit according to an embodiment of the present utility model.

Fig. 4 is a schematic circuit diagram of a signal stabilizing circuit according to an embodiment of the present utility model.

Fig. 5 is a schematic circuit diagram of another signal stabilizing circuit according to an embodiment of the present utility model.

Detailed Description

It should be understood by those skilled in the art that the specific structures, dimensions, and proportions shown in the drawings are for illustrating embodiments of the present utility model and are not intended to limit the scope of the claims, which should be limited thereto.

Embodiments of the present utility model will be described below with reference to the accompanying drawings.

Referring to fig. 1, a schematic diagram of a structure of a projector according to the present embodiment is provided, and a structure of the projector is described below with reference to fig. 1.

The projector of the present utility model mainly includes: a projection drive system 100 and a data processing system 200; as shown in fig. 1, a data receiving end of the projection driving system 100 is connected to a data transmitting end of the data processing system 200. Here, the projection driving system 100 may be connected with the data processing system 200 through an FFC line.

Among other things, data processing system 200 may include: a data processing module 210 and an NFC module 220; a first output terminal of the NFC module 220 is connected to a first receiving terminal of the data processing module 210, and a first output terminal of the data processing module 210 is connected to a data receiving terminal of the projection driving system 100.

Specifically, the NFC module 220 may receive connection data of the wireless network sent by the mobile terminal, and send the connection data to the data processing module 210; the data processing module 210 may perform wireless network connection according to the received connection data, for example, the connection data may include a WIFI name and a WIFI password of the wireless network, and the data processing module 210 connects the wireless network according to the received WIFI name and WIFI password, so that the projector does not need to search for the wireless network again, and the user does not need to manually input wireless networking information, thereby improving user experience. In addition, the data processing module 210 may also receive user projection data and send the received data to the projection driving system 100, where the projection driving system 100 performs a projection operation.

The projector of the embodiment can be suitable for all terminals with the projection function of the wireless connection function, so that when the projection equipment is moved to a new WiFi environment, the projection equipment can be started to receive WiFi related information sent by mobile terminals such as mobile phones and the like through the NFC module 220, and the projector is directly networked, thereby providing great design convenience for user convenience.

The projector of the embodiment can also display the connection state of the WIFI on the projector, and can also store the related information of the WIFI connection, so that the projector can be quickly connected with a wireless network when being started.

Alternatively, the data processing module 210 of the present embodiment may be a data processing chip, for example, an MSD6a358 chip, which has small size, multiple functions, and strong editability. For example, pin 6 of the Mp9943 chip in the rectifying circuit is connected to the VDDC pin of the MSD6a358 chip, and the SIGIN pin of the MFRC522 chip in the NFC circuit is connected to the vddc_cpu of the MSD6a358 chip. Of course, the specific structure or chip type of the data processing module 210 is not particularly limited in this embodiment.

In one embodiment, NFC module 220 may include: a rectifying circuit and an NFC circuit. The output end of the rectifying circuit is connected with the voltage end of the NFC circuit; an output terminal of the NFC circuit is connected to a first receiving terminal of the data processing module 210. For example, after the power supply is connected, high-frequency synchronous rectification is carried out through the rectification circuit to reduce the voltage, and then 3.3V voltage is output to the NFC circuit, so that the stability of signals is ensured.

Alternatively, referring to fig. 2, the rectifying circuit of the present embodiment may include: the rectifying chip U1345, the first resistor R3115, the second resistor R3116, the third resistor R3117, the fourth resistor R3120, the fifth resistor R3119, the first capacitor C2221, the second capacitor C2219, and the first inductor L1315.

Specifically, the input terminal IN of the rectifier chip U1345 is connected to an external power source, the signal terminal PG of the rectifier chip U1345 is connected to the first end of the first resistor R3115, the power terminal VCC of the rectifier chip U1345 is connected to the second end of the first resistor R3115, the control terminal BST of the rectifier chip U1345 is connected to the first end of the second resistor R3116, the output terminal SW of the rectifier chip U1345 is connected to the first end of the first inductor L1315 and the first end of the first capacitor C2221, and the feedback terminal FB of the rectifier chip U1345 is connected to the first end of the third resistor R3117.

The second end of the first resistor R3115 is connected to the first end of the second capacitor C2219; the second end of the second capacitor C2219 is grounded; a second end of the second resistor R3116 is connected to a second end of the first capacitor C2221; the second end of the first inductor L1315 is connected with the voltage end of the NFC circuit; the second end of the third resistor R3117 is connected to the second end of the first inductor L1315 through a fourth resistor R3120; the second terminal of the third resistor R3117 is grounded through the fifth resistor R3119.

Here, the U1345 may be an MP9943 chip.

The rectifying circuit may further include a protection circuit, such as the capacitor C2214 and the capacitor C2213 of fig. 2, such as the capacitor C2217, the capacitor C2216, the capacitor C2215 and the capacitor C2218, to ensure stability of the circuit.

Optionally, referring to fig. 3, the NFC circuit of this embodiment may include: NFC chip U1, read chip CN1, sixth resistance R1, seventh resistance R4, eighth resistance R3, ninth resistance R2, second inductance L1, third inductance L2, third capacitance C5, fourth capacitance C6, fifth capacitance C3, sixth capacitance C7, seventh capacitance C9, eighth capacitance C4, ninth capacitance C8, tenth capacitance C10, eleventh capacitance C15, twelfth capacitance C16, and crystal oscillator circuit (X1, C1, and C2).

Specifically, the first end RST of the NFC chip U1 is connected to the output end of the rectifying circuit through the sixth resistor R1, the second end EA of the NFC chip U1 is connected to the output end of the rectifying circuit through the seventh resistor R4, the third end (AVDD, DVDD, PVDD, TVDD) of the NFC chip U1 is connected to the output end of the rectifying circuit, the fourth end TX1 of the NFC chip U1 is connected to the first end of the second inductor L1, the fifth end TVSS of the NFC chip U1 is connected to the second end of the third capacitor C5 and the first end of the fourth capacitor C6, the sixth end TX2 of the NFC chip U1 is connected to the first end of the third inductor L2, the seventh end RX of the NFC chip U1 is connected to the second end of the eighth resistor R3, the eighth end VMID of the NFC chip U1 is connected to the first end of the eighth resistor R3, the crystal oscillator ends (OSCIN, osut) of the NFC chip U1 are sequentially connected to the first end of the eighth resistor R3 through the crystal oscillator circuit and the twelfth capacitor C16, and the signal end (CN) of the signal end (MISO, MOSI, SCK, SDA, RST) of the NFC chip U1 is connected to the signal end (CN) of the reading chip (MISO, MOSI, SCK, SDA, RST).

The second end of the second inductor L1 is connected with the first end of the third capacitor C5, and the second end of the second inductor L1 is connected with the first end of the sixth capacitor C7 and the first end of the seventh capacitor C9 through a fifth capacitor C3; the second end of the third inductor L2 is connected with the second end of the fourth capacitor C6, and the second end of the third inductor L2 is connected with the second end of the ninth capacitor C8 and the second end of the tenth capacitor C10 through an eighth capacitor C4; the second end of the eighth resistor R3 is connected with the first end of the sixth capacitor C7 through a ninth resistor R2 and an eleventh capacitor C15 in sequence; the second end of the sixth capacitor C7, the second end of the seventh capacitor C9, the first end of the ninth capacitor C8 and the first end of the tenth capacitor C10 are all grounded.

Here, the NFC chip U1 may be an MFRC522 chip.

The NFC circuit may further include a protection circuit, such as the capacitor C11 and the capacitor C12 of fig. 3, to ensure stability of the circuit.

Optionally, the NFC module 220 of this embodiment may further include: a step-down circuit; the receiving end of the voltage reducing circuit is connected with an external power supply, and the output end of the voltage reducing circuit is connected with the receiving end of the rectifying circuit. For example, the step-down circuit may be a TI BQ24610 step-down battery charge controller.

For example, after the projector is plugged into a 12V adapter, the voltage is reduced by the TI BQ24610 voltage-reducing battery charging controller, then the voltage is reduced by the MP9943 high-frequency synchronous rectification voltage-reducing switch converter, so that the projector has excellent load and linear regulation performance, then 3.3V voltage is output, after that, the 3.3V voltage is passed through the NFC MFRC522 module, the module is powered on to work, and the grounding treatment of C1 and C2 is also configured around the MFRC522, so that the module has better grounding property. After the above-mentioned circuit processes the signal, the NFC module 220 may implement a signal transmission function.

The NFC module 220 has a simple structure and low cost. According to the scheme, the projector is used by a user quickly, and obtains the WIFI name and the password transmitted by the mobile terminal of the mobile phone through the NFC chip, so that complicated operations of inputting the WIFI password manually on the projector by the user are reduced.

According to the method, as long as the mobile terminals such as the mobile phone and the like store relevant WIFI names and passwords, the projector is timely moved and switched under each WIFI scene, the user does not need to manually switch the WIFI of the projector, the projector is automatically matched with the received target WIFI names and corresponding password information, the time and steps for connection are reduced, the user use experience is improved, and when the signal synchronous transmission is realized, the design space can be simplified, and the cost is saved.

Further, the data processing system 200 of the present embodiment may further include: a communication module 260; an output of the communication module 260 is connected to a second receiving end of the data processing module 210. The communication module 260 may enable the projector to use traffic data to effect data transmission when the wireless network is not present.

Optionally, the communication module 260 of the present embodiment may include: a 4G/5G module and a signal stabilizing circuit; the output end of the 4G/5G module is connected with the second receiving end of the data processing module 210; and the antenna end of the 4G/5G module is connected with the signal stabilizing circuit. Illustratively, the 4G/5G module may include an EC 20.R2.1-LLC chip.

Specifically, referring to fig. 4, the signal stabilizing circuit may include a resistor R3192, a capacitor C2283, a capacitor C2284, and an rf_ant chip, to ensure stability of the 4G/5G module signal, for example, the signal stabilizing circuit may be connected to the ant_div pin, the ant_gnss pin, and the ant_main pin of the ec 20.r2.1-LLC chip.

Referring to fig. 5, the signal stabilizing circuit may further include a resistor C3193, a capacitor C2285, a capacitor C2286, and an NC/rf_ant chip, so as to ensure signal stability of the 4G/5G module and the NFC circuit, ensure stable signal transceiving, ensure normal signal transmission, ensure stability of the projector, and improve use feeling.

For example, the signal stabilization circuit may be connected to the ant_div pin, the ant_gnss pin, and the ant_main pin of the ec 20.r2.1-LLC chip.

Therefore, the projector is provided with the 4G/5G module and the WIFI module, the SIM card is arranged on the projector, a user can watch an online video according to the flow condition of the user, and a wireless hotspot can be supported to be created for other devices to share networking, so that user experience is improved. Of course, the communication module 260 of the present embodiment may also include a 2G module, a 3G module or a communication module faster than 5G, which increases the intelligence of the projector and improves the user experience.

Further, the data processing system 200 of the present embodiment may further include: an acceleration sensing module; the signal output of the acceleration sensing module is connected to the second control terminal of the data processing module 210.

The acceleration sensor is a sensor capable of measuring acceleration, and is generally composed of a mass block, a damper, an elastic element, a sensitive element, an adaptive circuit and the like, and the acceleration sensor obtains an acceleration value by utilizing newton's second law through measuring inertial force borne by the mass block in the acceleration process, so that the NFC module 220 can also change a projection position according to various movement changes of a projector, such as shaking, falling, rising, falling and the like, or switch operations of projecting video and the like, and user experience is improved.

The mode of the acceleration sensor is not limited in this embodiment, and may be capacitive, inductive, strain, piezoresistive, piezoelectric, or the like.

In one embodiment, data processing system 200 may further include: the power amplifier module 230, the interface module 240 and the power module 250; wherein, the receiving end of the power amplifier module 230 is connected with the second output end of the data processing module 210; an output end of the interface module 240 is connected with a third receiving end of the data processing module 210; the power supply terminal of the power module 250 is connected to an external power source, and the output terminal of the power module 250 is connected to the voltage terminal of the data processing module 210.

The power amplifier module 230 is used for playing music, etc., the power amplifier module 230 can also be a power amplifier chip with EQ, which balances the frequency and ensures the playing quality; the interface module 240 can receive any format data, the practicability is strong, the power module 250 ensures the normal operation of the projector, the problem of no power or power failure is avoided, and the user experience is high.

Optionally, as shown in fig. 1, the interface module 240 of the present embodiment includes: USB interface, HDMI interface and TYPE-C interface. The interface of this embodiment is various in types, strong in practicability, and high in user experience, and of course, this embodiment may further include more interface types, such as RCA interfaces, VGA interfaces, and so on.

Optionally, as shown in fig. 1, the power module 250 of the present embodiment may include: an electric quantity storage unit and a charging unit; the receiving end of the electric quantity storage unit is connected with the output end of the charging unit, and the output end of the electric quantity storage unit is connected with the voltage end of the data processing module 210; the receiving end of the charging unit is connected with an external power supply.

Therefore, the normal operation of the projector is ensured, the projection is not stopped due to sudden power failure, unnecessary influence is caused to a user, and the practicability of the projector is ensured.

The specific workflow of the projector of the present embodiment is exemplarily described below in conjunction with the above modules and circuits:

for example, if the user is a new user who uses the projector for the first time, after the mobile terminal of the mobile phone and the projector are connected through the NFC module 220, the projector is paired with the mobile terminal model of the mobile phone through the NFC module 220, and the next step is performed if the pairing is successful; the unsuccessful hold waits for a connection state.

After the pairing is successful, the projector displays the name and the password of the WIFI stored in the mobile phone, which are acquired by the NFC module 220, if the mobile terminal of the mobile phone is connected with the current WIFI network, the user can select the current WIFI network on the projector device to connect; if the mobile phone database does not have the current WIFI network, the mobile phone mobile terminal needs to be connected with the WIFI password of the network in advance. The data processing module 210 is successfully connected according to the WIFI name and the password, the projector is connected with the network, and the projector can play on the screen. Here, the data processing module 210 includes related functions regarding WIFI connection.

In the above embodiment, the projector mainly includes the projection driving system 100 and the data processing system 200, and the data processing system 200 includes: the data processing module 210 and the NFC module 220, where the NFC module 220 receives connection data of the wireless network sent by the mobile terminal, and sends the connection data to the data processing module 210, for example, a WIFI name and a WIFI password; the data processing module 210 is connected with the wireless network according to the connection data, so that the connection data of the wireless network sent by the mobile terminal is directly connected with the network, the user does not need to manually input wireless networking information, the user experience is improved, and the user experience is improved.

Furthermore, the features and benefits of the present utility model are described with reference to the exemplary embodiments. Accordingly, the utility model is expressly not limited to the exemplary embodiments which illustrate some possible non-limiting combinations of features, which may be present alone or in other combinations of features.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

Claims

1. A projector, comprising: a projection drive system and a data processing system; the data receiving end of the projection driving system is connected with the data transmitting end of the data processing system;

2. The projector according to claim 1, wherein the NFC module comprises: a rectifying circuit and an NFC circuit;

3. The projector according to claim 2, wherein the rectifying circuit includes: the device comprises a rectification chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor and a first inductor;

4. The projector according to claim 2, wherein the NFC circuit comprises: NFC chip, read chip, sixth resistance, seventh resistance, eighth resistance, ninth resistance, second inductance, third capacitance, fourth capacitance, fifth capacitance, sixth capacitance, seventh capacitance, eighth capacitance, ninth capacitance, tenth capacitance, eleventh capacitance, twelfth capacitance and crystal oscillator circuit;

5. The projector of claim 2, wherein the NFC module further comprises: a step-down circuit;

6. The projector of claim 1, wherein the data processing system further comprises: a communication module;

7. The projector of claim 6, wherein the communication module comprises: a 4G/5G module and a signal stabilizing circuit;

8. The projector of claim 1, wherein the data processing system further comprises: the power amplifier comprises a power amplifier module, an interface module and a power supply module;

9. The projector of claim 8, wherein the interface module comprises: USB interface, HDMI interface and TYPE-C interface.

10. The projector of claim 8, wherein the power module comprises: an electric quantity storage unit and a charging unit;