CN220342491U

CN220342491U - Lighting device

Info

Publication number: CN220342491U
Application number: CN202321925481.8U
Authority: CN
Inventors: 曾新辉
Original assignee: Shenzhen Guanghetai Intelligent Technology Co ltd
Current assignee: Shenzhen Guanghetai Intelligent Technology Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-01-12
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to a lighting device comprising: a light emitting device; the light-emitting device is arranged on the main circuit board; the connecting unit is fixedly connected with the main circuit board and comprises a USB TYPE-C connector, and a power supply pin of the USB TYPE-C connector is connected with a conductive circuit on the main circuit board to supply power to the light-emitting device; the power supply control unit is connected with a signal pin of the USB TYPE-C connector so that a power supply end determines power supply voltage; the USB TYPE-C interface adopted by the lighting device does not need to distinguish between the front and the back when being spliced and used, so that the lighting device is more convenient to use and better in user experience.

Description

Lighting device

Technical Field

The present disclosure relates to lighting devices, and particularly to a lighting device.

Background

With the development of science and technology and the improvement of life quality of people, illumination has become an indispensable requirement in daily life of people. The traditional lighting lamp needs to be powered by special power equipment, a mains supply plug is often needed to be found and corresponding power equipment is configured when the lighting lamp is used, and the application scene of the lighting lamp is limited. In recent years, some lighting products begin to be powered by ase:Sub>A USB (Universal Serial Bus ) Type-ase:Sub>A (or USB-ase:Sub>A) interface, and can be powered by ase:Sub>A power adapter, ase:Sub>A charger, ase:Sub>A USB Type-ase:Sub>A port of ase:Sub>A computer, or the like. However, USB Type-a ports are inconvenient to plug and may be limited in some use scenarios.

Therefore, how to more conveniently apply the illumination product is a problem to be solved.

Disclosure of Invention

In view of the above-mentioned drawbacks of the related art, an object of the present application is to provide a lighting device, which aims to solve the problem of inconvenient use of lighting products.

A lighting device, comprising:

a light emitting device;

the light-emitting device is arranged on the main circuit board;

the connecting unit is fixedly connected with the main circuit board and comprises a USB TYPE-C connector, and a power supply pin of the USB TYPE-C connector is connected with a conductive circuit on the main circuit board to supply power to the light-emitting device;

and the power supply control unit is connected with the signal pin of the USB TYPE-C connector so that the power supply end determines the power supply voltage.

The USB TYPE-C interface adopted by the lighting device does not need to distinguish between the front and the back when being spliced and used, so that the lighting device is more convenient to use and better in user experience.

Optionally, the signal pin is a CC pin, the power supply control unit includes a pull-down resistor, one end of the pull-down resistor is connected to the CC pin of the USB TYPE-C connector, and the other end of the pull-down resistor is grounded.

Optionally, the power supply control unit includes a power supply protocol chip, and the signal pins are pins corresponding to a protocol adopted by the power supply protocol chip;

the power supply protocol chip is connected with the signal pin of the USB TYPE-C connector to negotiate the power supply voltage with the power supply end; the power supply protocol chip is also connected with the power supply pin of the USB TYPE-C connector so as to receive the power supply voltage.

Optionally, the power supply pin of the USB TYPE-C connector is connected to the light emitting device through the power supply protocol chip to supply power to the light emitting device.

Optionally, the USB TYPE-C connector is fixedly disposed at an edge of the main circuit board, and a pin of the USB TYPE-C connector is directly connected with a conductive circuit on the main circuit board.

Optionally, the USB TYPE-C connector is not fixedly disposed, the connection unit further includes a connection line that connects the USB TYPE-C connector with the main circuit board, one end of the connection line is connected with a pin of the USB TYPE-C connector, and the other end is directly connected with the main circuit board.

Optionally, the connection unit further includes a sub-circuit board, the sub-circuit board is disposed at one end of the connection line near the USB TYPE-C connector, the connection line is connected with the USB TYPE-C connector through a conductive line on the sub-circuit board, and the power supply control unit is disposed on the sub-circuit board.

Optionally, the lighting device further comprises a light-emitting control unit, and the light-emitting control unit is connected with the light-emitting device to control the light-emitting device.

Optionally, the signal pins include at least one of a CC pin, a d+ pin, a D-pin, a power pin, an SBU1 pin, and an SBU2 pin.

Optionally, the USB TYPE-C connector includes at least one of a male and a female.

Drawings

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

fig. 2 is a schematic structural diagram of an illumination device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a lighting device according to an embodiment of the present utility model;

fig. 4 is a schematic connection diagram of a part of a circuit of a lighting device according to an embodiment of the present utility model;

fig. 5 is a second schematic connection diagram of a part of a circuit of the lighting device according to the embodiment of the present utility model;

fig. 6 is a schematic connection diagram of a part of a circuit of a lighting device according to an embodiment of the present utility model;

fig. 7 is a schematic diagram showing connection of a part of a circuit of a lighting device according to an embodiment of the present utility model

Fig. 8 is a schematic diagram showing connection of a part of circuits of a lighting device according to an embodiment of the present utility model;

reference numerals illustrate:

a 1-USB TYPE-C connector; 2-a main circuit board; 3-a light emitting device; 4-connecting wires; 5-a housing; 6, a sleeve; 7-a sub-circuit board; r-pull-down resistor; u1-a power supply protocol chip; u2-a light-emitting control chip; GND-ground pin; CC-CC pins; VBUS-supply pin.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the related art, the power supply port of the lighting lamp is inconvenient to plug in, and the lighting lamp is limited in some use occasions.

Based on this, the present application intends to provide a solution to the above technical problem, the details of which will be explained in the following embodiments.

Examples:

the present embodiment provides a lighting device, referring to fig. 1 to 8, which includes a light emitting device 3, a main circuit board 2, a connection unit, and a power supply control unit. Wherein the light emitting device 3 is disposed on the main circuit board 2, and the connection unit is fixedly connected with the main circuit board 2. The connection unit is used for connecting the lighting device with an external power supply end, and comprises a USB TYPE-C connector 1 which can be externally connected to the power supply end through the USB TYPE-C connector (or TYPE-C, USB-C and the like) so as to take power from the power supply end to supply power to the light emitting device 3 on the main circuit board 2 or to supply power to other devices on the main circuit board 2. In this embodiment, the power supply pin VBUS of the USB TYPE-C connector 1 is connected to a conductive line on the main circuit board 2, which is connected to at least the light emitting device 3 to supply power to the light emitting device 3. The power supply control unit of this embodiment is connected with the signal pin of the USB TYPE-C connector 1, so that the power supply terminal determines the power supply voltage.

It is understood that the power supply terminal includes, but is not limited to, a power adapter, an intelligent terminal, etc. having a USB TYPE-C female port for outputting electric power to the outside. The lighting device of this embodiment through setting up USB TYPE-C and connect 1, can be connected with the power supply end such as outside power adapter, realizes convenient illumination power supply, need not the user and carries out operations such as wiring, bonding wire, and compare in traditional USB TYPE-A interface, the USB TYPE-C interface that the lighting device adopted of this embodiment need not to distinguish positive and negative when pegging graft and use, and it is more convenient to use, user experience is better, and adopt USB TYPE-C to connect 1 as the interface, can directly insert power adapter etc. have the power supply end of corresponding USB TYPE-C interface in some implementation processes, need not to insert extra power cord. In addition, the embodiment adopts the interface of the USB TYPE-C, can be compatible with various power supply protocols, and in some embodiments, the power supply control unit can request the required power supply voltage, so that the expandability is stronger compared with the traditional USB power supply mode.

In this embodiment, the USB TYPE-C connector 1 of the connection unit may be a male connector or a female connector, and correspondingly, the interface on the power supply end connected with the connection unit is a female connector or a male connector of the USB TYPE-C connector, respectively. In some embodiments, in order to enable the display device to be compatible with more application scenarios, the connection unit may include both a male connector of USB TYPE-C and a female connector of USB TYPE-C. For convenience of description, the following examples of the present application mainly use the USB TYPE-C connector 1 as a male connector.

The light emitting device 3 includes, but is not limited to, at least one of an LED (Light Emitting Diode ) bead and an LED chip, and it should be understood that the LED bead is a separate device formed after the LED chip is packaged, in which one or more LED chips are packaged; the LED chip refers to the LED chip itself, that is, the lighting device may be in a form of directly disposing the LED chip on the main circuit Board 2 by COB (chip on Board) package or the like. Of course, after the LED chip is disposed on the main circuit board 2, structures including, but not limited to, fluorescent glue, encapsulation glue, and the like may be disposed thereon, and the specific package form of the light emitting device 3 is not limited in this application. The main circuit board 2 employed by the lighting device of the present embodiment includes, but is not limited to, any shape such as a strip shape, a plate shape, etc.; the light emitting devices 3 may be arranged in a single row, a plurality of rows, or an irregular arrangement on the main circuit board 2; the connection manner between the light emitting devices 3 may be serial, parallel or series-parallel, which is not limited in this application.

The fixed connection of the connection unit with the main circuit board 2 is not limited to that all parts of the connection unit are fixed on the main circuit board 2, and it may be that the USB TYPE-C connector 1 in the connection unit is fixed on the main circuit board 2; the connection line 4 in the connection unit may be fixedly connected to the main circuit board 2, and the USB TYPE-C connector 1 may not be fixedly disposed at this time.

In some embodiments, the USB TYPE-C connector 1 is fixedly connected to the main circuit board 2, for example, may be fixedly disposed on an edge of the main circuit board 2, and pins of the USB TYPE-C connector 1 are directly connected to conductive traces on the main circuit board 2. For some smaller lighting devices, the USB TYPE-C connector 1 fixedly arranged on the main circuit board 2 can reduce the whole volume of the lighting device, has higher integration level and is convenient to store.

In some embodiments, the USB TYPE-C connector 1 may be provided non-fixedly, i.e. the USB TYPE-C connector 1 is not fixed with the main circuit board 2 or other structures in the lighting device. For example, the USB TYPE-C connector 1 may be connected to the main circuit board 2 by means of a connection wire 4, and the connection unit of this embodiment further includes the connection wire 4, where one end of the connection wire 4 is connected to a pin of the USB TYPE-C connector 1, and the other end is directly connected to the main circuit board 2. It will be appreciated that, depending on the actual function used, the pins to which the connection wires 4 are specifically connected and the conductive traces on the main circuit board 2, the corresponding pins may not be connected to the connection wires 4 for functions that are not used, i.e. the embodiment is not limited to all pins in the USB TYPE-C connector 1 being required to be connected to the conductive traces on the main circuit board 2. Correspondingly, the USB TYPE-C connector 1 adopted by the lighting device of the present application may be a standard 24PIN full-function connector, or may be 16PIN, 6PIN or other specifications, as long as the required functions of the present embodiment are ensured to be satisfied. For convenience of explanation, only part of the pins are illustrated in the embodiment and the drawings, and for other pins not shown, the pins not shown may be connected according to the actual application requirement; in addition, the connection relation of each device is only illustrated in the drawings of the present application, and the rest of the devices are omitted, and in practical application, in order to realize the corresponding functions, those skilled in the art may be provided with circuit devices and modules including but not limited to resistors, capacitors, inductors, and others as required.

As an example, as shown in fig. 1, the main circuit board 2 of the present embodiment may be in a bar shape, the light emitting devices 3 may be arranged in a single row in the length direction of the main circuit board 2, and the connection unit may be connected to one end in the length direction of the main circuit board 2. The connection unit of this example is a USB TYPE-C connector 1 directly disposed at the edge of the main circuit board 2, and it is understood that the USB TYPE-C connector 1 normally extends out of the edge of the main circuit board 2, so as to achieve butt joint with a USB TYPE-C female connector. The USB TYPE-C connector 1 may be arranged by soldering, and its pins may be soldered directly to conductive traces on the main circuit board 2.

As an example, as shown in fig. 2, the main circuit board 2 may be in a bar shape, the light emitting devices 3 may be arranged in a single row in the length direction of the main circuit board 2, and the connection unit may be connected to one end of the main circuit board 2 in the length direction. The connection unit of the present example includes a connection wire 4 directly connected to the main circuit board 2, and a USB TYPE-C connector 1 at the other end of the connection wire 4. In this example, the USB TYPE-C connector 1 may be provided with a shielding protection for a portion of the housing 5 to which the connection line 4 is connected. The connecting wire 4 of the present example is a flexible wire, which can be bent to some extent so that the relative position of the USB TYPE-C connector 1 and the main circuit board 2 is not fixed, and the lighting device can be more flexibly set without being completely limited by the position or posture of the power supply end.

The connection line 4 is not limited to a common wire in the form of a similar data line, and the connection line 4 may be wrapped in a sleeve 6 in the example shown in fig. 3. The sleeve 6 of this example may be made of insulating glue, and the connecting wire 4 in the sleeve 6 may be a bare wire or a wire covered with insulating sheath.

It will be appreciated that the USB TYPE-C connector 1 normally extends beyond the edge of the main circuit board 2, whether or not a connection wire 4 is provided, so that a docking with the USB TYPE-C female port may be achieved. The USB TYPE-C connector 1 may be arranged by soldering, and its pins may be soldered directly to conductive traces or connection wires 4 on the main circuit board 2, and similarly, the connection between the connection wires 4 and the main circuit board 2 may be soldered or otherwise.

In some embodiments, the connection unit further includes a sub-circuit board 7, where the sub-circuit board 7 is disposed at one end of the connection wire 4 near the USB TYPE-C connector 1, where the sub-circuit board 7 can be used as an intermediate carrier, and the USB TYPE-C connector 1 and the connection wire 4 are connected through conductive lines in the sub-circuit board 7, so that the connection wire 4 is prevented from being directly connected with pins of the USB TYPE-C connector 1, and the USB TYPE-C connector 1 and the connection wire 4 can be more conveniently connected together, for example, more conveniently and efficiently during welding. In some implementations, the sub-circuit board 7 may also be provided with electronics, which in some cases can shorten the overall trace length.

The power supply control unit on the lighting device of the present embodiment may be disposed on the main circuit board 2, and when the connection unit of the lighting device includes the sub-circuit board 7, the power supply control unit may also be disposed on the sub-circuit board 7, and in some examples, the power supply control unit may also be partially disposed on the main circuit board 2 and partially disposed on the sub-circuit board 7.

As an example, referring to fig. 4, the power supply control unit includes a pull-down resistor R, one end of which is connected to the CC pin CC of the USB TYPE-C connector 1, and the other end of which is grounded. It will be appreciated that in this example, the Power supply voltage requested by the Power supply control unit is a fixed value, typically defaulting to 5V in the PD (Power Delivery protocol) protocol. Through setting up the resistance formation pull-down resistor R of ground connection in lighting device, with the CC pin CC pull-down ground connection of USB TYPE-C joint 1, support the power supply end of PD agreement and USB TYPE-C joint 1 to be connected to, discernment to the pull-down resistor R that CC pin CC inserted, can confirm the power supply voltage of 5V based on the PD agreement to provide lighting device. The cost of power supply control by adopting the pull-down resistor R is low, and basic power supply requirements can be met in some implementation processes. It should be further noted that, when the USB TYPE-C connector 1 is a female connector, the CC pin CC referred to in this embodiment may be either a CC1 pin (i.e. A5 pin) or a CC2 pin (i.e. B5 pin), and the other pin may be a pin corresponding to the Vconn pin of the male connector.

Illustratively, as in the example shown in FIG. 4, the pull-down resistor R may be disposed directly on the main circuit board 2 and proximate to the location of the USB TYPE-C connector 1. The CC pin CC of the USB TYPE-C connector 1 is connected to the pull-down resistor R through a conductive line, and the other end of the pull-down resistor R is connected to the ground pin GND of the USB TYPE-C connector 1. The pull-down resistor R in this example requires a shorter line and occupies less space. Referring to the example of fig. 4, when the power supply control unit employs the pull-down resistor R, the power supply pin VBUS of the USB TYPE-C connector 1 may be directly connected to the light emitting device 3. If the lighting device is not provided with the light-emitting control unit, the plug-and-play effect can be realized.

As in the example of fig. 5, the main circuit board 2 is connected to the USB TYPE-C connector 1 through the connection line 4, and the pull-down resistor R may be disposed near one end of the USB TYPE-C connector 1, thereby avoiding adding a long line in the connection line 4. One end of the USB TYPE-C connector 1 may be provided with a sub-circuit board 7, and conductive traces on the sub-circuit board 7 connect the USB TYPE-C connector 1 with the connection wires 4. The pull-down resistor R may be disposed on the sub-circuit board 7, the CC pin CC of the USB TYPE-C connector 1 is connected to the pull-down resistor R through a conductive line of the sub-circuit board 7, and the other end of the pull-down resistor R is directly connected to the ground pin GND of the USB TYPE-C connector 1 through a conductive line of the sub-circuit board 7. That is, the pull-down resistor R and the circuit thereof can be directly completed in the sub-circuit board 7, and the CC pin CC of the USB TYPE-C connector 1 is not required to be connected to the far-end main circuit board 2 through the connecting wire 4, so that the number of circuits in the connecting wire 4 is reduced, and the overall wiring length of the lighting device is shorter. Of course, in other embodiments, the pull-down resistor R may be provided on the main circuit board 2 and connected through the connection line 4.

In some embodiments, the power supply control unit includes a power supply protocol chip U1, and the signal pins in this embodiment are pins corresponding to a protocol adopted by the power supply protocol chip U1. As described above, the power supply protocol chip U1 may also be disposed on the main circuit board 2, or when the terminal circuit board 7 is disposed at the end of the connection wire 4 near the USB TYPE-C connector 1, the power supply protocol chip U1 may be disposed on the terminal circuit board 7. It can be understood that when the power supply protocol chip U1 is disposed on the sub-circuit board 7, the connection between the power supply protocol chip U1 and the signal pins of the USB TYPE-C connector 1 can be directly completed in the sub-circuit board 7, so that the number of lines in the connection line 4 can be reduced, and the overall wiring length of the lighting device is shorter.

It should be noted that, the signal pin in the present application refers to a pin of the power supply control unit transmitting a signal related to power supply to the power supply end, and the protocol adopted by each power supply protocol chip U1 is an existing protocol supported by the interface of the USB TYPE-C, which is not limited in the present application. For example, in the foregoing CC pin CC, in the PD protocol, the power supply terminal determines the power supply voltage through the signal of the CC pin CC. In other protocols, the signal pins may also include, but are not limited to, D-pins (i.e., A7 pin and B7 pin) and d+ pins (i.e., A6 pin and B6 pin), for example, in the QC (Quick Charge) protocol, a voltage signal is output to the power supply terminal through the D-pins and d+ pins, and the power supply terminal determines the power supply voltage according to the voltage signals of the D-pins and d+ pins. In some power supply protocols, the signal pin may also be a power supply pin VBUS, for example, a PE (fast charging protocol) protocol proposed by the concurrency department transmits information through the on-off interval of the current, and in some implementations, only the power supply pin VBUS and the ground pin GND may also successfully trigger the PE protocol. In some embodiments, the signal pins may also be an SBU1 pin (i.e., A8 pin) and an SBU2 pin (i.e., B8 pin), such as SCP (super charge protocol) and FCP (Fast Charger Protocol, fast charge protocol). Of course, the power supply protocol chip U1 may also support other protocols, such as proprietary protocols, as long as it is compatible with the USB TYPE-C interface. For convenience of description, the examples and the drawings in this embodiment take the PD protocol as an example, and it is understood that, for other protocols, the CC pins CC may be adjusted to other signal pins according to the requirements of the protocol.

In practical application, a power supply protocol chip U1 that supports multiple protocols simultaneously may be used, and may be connected to signal pins corresponding to each supported protocol simultaneously. The pins of the power supply protocol chip U1 are respectively connected with the CC pin CC of the USB TYPE-C connector 1 (the CC1 pin and the CC2 pin if the USB TYPE-C connector 1 is a female connector), the d+ pin, the D-pin, the power supply pin VBUS, the SBU1 pin and the SBU2 pin, and in some use processes, the negotiation determination of the power supply voltage can be performed according to the protocol supported by the power supply terminal.

In some examples, the power supply control unit includes a power supply protocol chip U1, where the power supply protocol chip U1 is connected to a signal pin of the USB TYPE-C connector 1 to negotiate a power supply voltage with the power supply terminal; the power supply protocol chip U1 is also connected with a power supply pin VBUS of the USB TYPE-C connector 1 to receive a power supply voltage. After the power supply voltage is input into the power supply protocol chip U1, the power supply voltage can be used for supplying power to the power supply protocol chip U1, and the power supply voltage can be externally output by the power supply protocol chip U1 to supply power to other components.

In some embodiments, the power supply pin VBUS of the USB TYPE-C connector 1 is connected to the light emitting device 3 through the power supply protocol chip U1 to supply power to the light emitting device 3, that is, the power supply pin VBUS of the USB TYPE-C connector 1 is not directly connected to the light emitting device 3, and the power supply protocol chip U1 outputs a voltage to the outside to supply power to the light emitting device 3. The power supply protocol chip U1 is used for intensively controlling the power supply control of the light emitting device 3, the power receiving of the light emitting device 3 can be more stable in some implementation processes, and other functions such as voltage stabilization, filtering and the like can be integrated in the power supply protocol chip U1, so that the power receiving quality of the light emitting device 3 is improved.

As an example, referring to fig. 6, the power supply protocol chip U1 employs a PD protocol, which is connected to the CC pin CC of the USB TYPE-C connector 1 and to the ground pin GND of the USB TYPE-C connector 1 for grounding. After the USB TYPE-C connector 1 is connected with the power supply end, the power supply protocol chip U1 can transmit information through the CC pin CC so as to determine power supply voltage based on the PD protocol and the power supply end, and the power supply end provides the power supply voltage to the power supply pin VBUS of the USB TYPE-C connector 1. In this example, the supply pin VBUS of the USB TYPE-C connector 1 is connected to a supply protocol chip U1, which is capable of powering the supply protocol chip U1. The power supply pin VBUS of the USB TYPE-C connector 1 is not directly connected to the light emitting device 3, the power supply protocol chip U1 is connected with the light emitting device 3, and the power supply protocol chip U1 supplies power to the light emitting device 3; i.e. the light emitting device 3 is actually indirectly connected to the supply pin VBUS of the USB TYPE-C connector 1.

In other examples, such as in fig. 7, the power supply pin VBUS of the usb TYPE-C connector 1 may be connected to other devices without passing through the power supply protocol chip U1, in addition to the power supply protocol chip U1 to supply power thereto. That is, the power supply protocol chip U1 is only used for negotiating the power supply voltage with the power supply terminal, which can separate the power supply protocol chip U1 from other functions, the circuit design is not limited by the function limitation of the power supply protocol chip U1, and the design is more flexible.

The traditional USB lighting product can only adopt the light-emitting device 3 of 5V, obtains 5V voltage through directly getting electricity from USB Type-A interface and supplies power. In the lighting device of this embodiment, through the USB TYPE-C connector 1 and the power supply protocol chip U1 in the power supply control unit, the charging protocol can be supported, in some implementation processes, more power supply voltages, for example, 9V, 12V, 15V, 20V, etc. can be requested to the power supply end, so that the driving capability of the lighting device is larger, and the lighting device 3 with more specifications can be adopted. For example, the main circuit board 2 and the light emitting device 3 in the lighting device in some embodiments may use a 12V lamp band, and directly access to a power supply end having a USB TYPE-C female port and supporting a corresponding power supply protocol to achieve power supply driving without additionally configuring a dedicated power supply or a voltage transformation module, thereby achieving direct driving through a USB interface.

It can be seen that, the lighting device of this embodiment not only can realize positive and negative plug, in some embodiments, compare in the direct mode of getting power of the lighting device of traditional USB Type-A mouth power supply, can to a certain extent with the compatible power supply protocol looks adaptation of USB TYPE-C to can adopt the corresponding charging protocol to supply power, its drive capability is bigger, makes its applicable scene also more extensive.

In some embodiments, the lighting apparatus further comprises a light emission control unit connected with the light emitting device 3 to control the light emitting device 3. The light emission control unit includes, but is not limited to, a device or module capable of controlling the on/off or brightness state of the light emitting device 3, such as a switch, a light emission control chip U2, and the like. In the present embodiment, the light emitting device 3 may be one or more than one, and may be, for example, two-core, three-core, four-core, or the like; different light emitting devices 3 can emit light rays with different colors or different color temperatures, and different light emitting effects such as cold white light, warm white light, natural white light or RGB (red, green and blue) are realized in a matched mode. In some embodiments, the lighting control unit may then control the light emitting devices 3 such that the lighting arrangement switches between different lighting effects.

Referring to the example of fig. 6, the light emission control unit includes a light emission control chip U2, and a corresponding control program may be provided in the light emission control chip U2 and connected to the light emitting device 3; the lighting device may be operated by predetermined control of the light emitting means 3 in accordance with a control program. In practical applications, the light-emitting control unit may also include an input unit for receiving user input, where the light-emitting control chip U2 performs corresponding control according to an instruction input by the user. In this example, the power supply protocol chip U1 is connected to the light emission control chip U2, and power is supplied to the light emission control chip U2 by the power supply protocol chip U1.

Referring again to the example of fig. 7, the power supply pin VBUS of the USB TYPE-C connector 1 may also be connected to the light emission control chip U2 without passing through the power supply protocol chip U1. That is, the power supply voltage received by the USB TYPE-C connector 1 is directly delivered to the light emitting control chip U2 through the power supply pin VBUS of the USB TYPE-C connector 1 or the power supply pin VBUS of the USB TYPE-C connector 1 is delivered to the light emitting control chip U2 through other paths to supply power to the light emitting control chip U2.

It will be appreciated that if the power supply control unit employs a pull-down resistor R, the power supply pin VBUS of the USB TYPE-C connector 1 may be directly connected to the light emitting device 3 or the light emission control unit. For example, as shown in fig. 8, the power supply voltage of the power supply pin VBUS of the USB TYPE-C connector 1 may be received by the light emission control chip U2, and the voltage may be output by the light emission control chip U2 to drive the light emitting device 3.

It should be understood that the connection form of the individual devices in the lighting apparatus is not limited to the examples illustrated above, but may be implemented as other circuit connection forms according to actual circuit designs, as long as the required functions can be achieved.

In some examples, the operating voltage of the light-emitting control chip U2 is not consistent with the determined supply voltage, and the supply voltage may be converted into the operating voltage required by the light-emitting control chip U2 through the voltage transformation unit.

By way of example, the light emission control unit may be provided on the main circuit board 2, can be closer to the light emitting device 3, and can have more sufficient layout space on the main circuit board 2. However, in other embodiments, the lighting control unit may be provided on the sub-circuit board 7 of the connection wire 4 provided near one end of the USB TYPE-C connector 1.

It should be noted that each circuit board in the present application may be a hard circuit board or a flexible circuit board. Each circuit board can be a single piece, can also comprise a plurality of small circuit boards which are spliced, combined or separated, and can be made of the same material or different materials when the circuit boards comprise more than one part; for example, the circuit board may be partially a hard circuit board, and partially a flexible circuit board may be used. The light emitting device 3 in the present application includes, but is not limited to, a common LED lamp bead or an LED chip, and the LED chip packaged in the LED lamp bead or the LED chip directly disposed on the circuit board may also be at least one of a Mini LED (Mini Light Emitting Diode, sub-millimeter light emitting diode) chip or a Micro LED (Micro Light Emitting Diode ) chip.

The lighting device of the present embodiment can be applied to various lighting fields, for example, it can be applied to a household lighting field, a medical lighting field, a decoration field, an automobile field, a traffic field, and the like. When the LED lamp is applied to the field of household illumination, the LED lamp can be manufactured into a floor lamp, a desk lamp, an illuminating lamp, a ceiling lamp, a down lamp, a projection lamp and the like; when the light source is applied to the field of medical illumination, the light source can be manufactured into operating lamps, low-electromagnetic illumination lamps and the like; when the decorative lamp is applied to the decoration field, the decorative lamp can be manufactured into various decorative lamps, such as various colored lamps, decorative lamp strips, landscape lighting lamps, advertisement lamps and the like; when the light is applied to the field of automobiles, the light can be manufactured into automobile indication lamps, interior lighting lamps and the like; when the method is applied to the traffic field, various traffic lights, street lamps and the like can be manufactured. The above-described applications are only a few applications of the example shown in the present embodiment, and it should be understood that the application of the lighting device in the present embodiment is not limited to the fields of the above-described examples.

The connection referred to in the present application is an electrical connection, and may be a direct connection or an indirect connection unless otherwise specified. The direct connection finger is connected with the two through a conductive circuit and does not pass through other devices; the indirect connection may then have other components between the two connected together.

Those of skill in the art will appreciate that the various functional units disclosed herein may be implemented as hardware, circuits, integrated devices, chips, etc., or may be implemented as a suitable combination of hardware and processor executing the steps of the existing methods. For example, one physical component may have multiple functions, or one function may be cooperatively performed by several physical components. Some of the physical components may be implemented as processors, such as central processing units, digital signal processors, microprocessors or micro control units (MCUs, microcontroller Unit) and perform existing method steps; for example, the power supply protocol chip U1 and the light emission control chip U2 may employ a micro control unit and perform an existing charging protocol or light emission control method. Or some of the physical components may be implemented as integrated circuits, such as application specific integrated circuits.

It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims

1. A lighting device, comprising:

a light emitting device;

the light-emitting device is arranged on the main circuit board;

2. The lighting device of claim 1, wherein said signal pin is a CC pin, said power control unit comprises a pull-down resistor, one end of said pull-down resistor is connected to said CC pin of said USB TYPE-C connector, and the other end is grounded.

3. The lighting device of claim 1, wherein the power control unit comprises a power protocol chip, and wherein the signal pins comprise pins corresponding to a protocol employed by the power protocol chip;

4. A lighting device as recited in claim 3, wherein said power supply pin of said USB TYPE-C connector is connected to said light emitting device through said power supply protocol chip to power said light emitting device.

5. The lighting device of claim 1, wherein said USB TYPE-C connector is fixedly disposed at an edge of said main circuit board, and pins of said USB TYPE-C connector are directly connected to conductive traces on said main circuit board.

6. The lighting device of claim 1, wherein said USB TYPE-C connector is provided non-fixedly, said connection unit further comprises a connection wire connecting said USB TYPE-C connector to said main circuit board, one end of said connection wire being connected to a pin of said USB TYPE-C connector, and the other end being directly connected to said main circuit board.

7. The lighting device of claim 6, wherein said connection unit further comprises a sub-circuit board disposed at an end of said connection line adjacent to said USB TYPE-C connector, said connection line being connected to said USB TYPE-C connector by a conductive trace on said sub-circuit board, said power supply control unit being disposed on said sub-circuit board.

8. A lighting device as recited in claim 1, further comprising a light emission control unit, said light emission control unit being connected to said light emitting device for controlling said light emitting device.

9. The lighting device of any one of claims 1-8, wherein the signal pin comprises at least one of a CC pin, a d+ pin, a D-pin, a power pin, an SBU1 pin, and an SBU2 pin.

10. The lighting device of any one of claims 1-8, wherein the USB TYPE-C connector comprises at least one of a male and female connector.