LED light-emitting circuit board with fan capable of directly taking electricity

Abstract

The invention discloses an LED light-emitting circuit board with a fan capable of directly taking electricity, which comprises a circuit board, a plurality of lamp bead groups are arranged on the circuit board, and a lamp bead driving circuit connected with the lamp bead groups is arranged on the circuit board; the circuit board is further provided with a fan direct-current electricity taking terminal used for taking electricity from the fan. And the fan direct-current power taking terminal is connected with the plurality of lamp bead groups which are connected in parallel in parallel. The LED lamp is reasonable in structural arrangement, the fan direct-current electricity taking terminal connected with the lamp bead set in parallel is arranged on the circuit board, namely, the fan can be directly and electrically connected with the fan direct-current electricity taking terminal, the connection convenience of the fan is improved, use of a transformer, a winding and a filter capacitor is reduced, electronic components are saved, and the cost is reduced. And moreover, the fan is powered by direct current, so that the use stability and reliability of the fan are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of LED lamps, and in particular relates to an LED light-emitting circuit board with a fan directly taking power. Background Art

[0002] An LED light-emitting circuit board is provided in the lamp, and lamp beads are provided on the LED light-emitting circuit board. At the same time, a driving power supply is provided outside. In order to improve the service life of the LED light-emitting circuit board, a corresponding cooling fan is generally provided, and the cooling fan and the driving power supply are powered by a transformer and a filter capacitor. Although it can meet the general usage requirements, its transformer requires corresponding windings and a filter capacitor, and the current output by the transformer is alternating current, which is filtered by the filter capacitor to power the fan. It will greatly increase the setting of the electronic components for powering, thereby increasing the cost, and is also not conducive to the connection and use of the cooling fan, so the applicability and practicality are limited. Summary of the invention

[0003] The object of the present invention is to provide an LED light-emitting circuit board with direct power supply from a fan, which has a reasonable structural arrangement and is conducive to improving the convenience of power supply.

[0004] The technical solution to achieve the purpose of the present invention is an LED light-emitting circuit board with direct power supply from a fan, comprising a circuit board, a plurality of lamp bead groups are arranged on the circuit board, and a lamp bead driving circuit connected to the lamp bead groups is arranged on the circuit board;

[0005] The circuit board is also provided with a fan DC power terminal for drawing power from the fan;

[0006] The fan DC power terminal is connected in parallel with a plurality of parallel lamp bead groups.

[0007] Further preferably, the number of lamp beads in the lamp bead group is greater than one and less than ten, and the lamp beads in the lamp bead group are connected in series.

[0008] Further preferably, the circuit board is a circular circuit board, the lamp bead driving circuit is located in the middle of the circular circuit board, and the fan DC power terminal is located at the edge of the circular circuit board.

[0009] The present invention has positive effects: the structure of the present invention is reasonably arranged, and a fan DC power terminal connected in parallel with the lamp bead group is arranged on the circuit board, that is, the fan can be directly electrically connected to the fan DC power terminal, which not only improves the connection convenience of the fan, but also reduces the use of transformers, windings and filter capacitors, which is conducive to saving electronic components and processing costs. In addition, the fan is powered by DC, which ensures the stability and reliability of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a specific circuit diagram of the present invention.

[0013] Figure numerals: circuit board 1, lamp bead group 2, lamp bead driving circuit 3, fan DC power terminal 4. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] Example

[0016] See Figure 1 and Figure 2 As shown, an LED light-emitting circuit board with direct power supply from a fan includes a circuit board 1, a plurality of lamp bead groups 2 are arranged on the circuit board, and a lamp bead driving circuit 3 connected to the lamp bead groups is arranged on the circuit board; in this embodiment, the lamp bead driving circuit is a conventional circuit of the prior art, so it is not described in detail, but simply applied;

[0017] At the same time, the circuit board is also provided with a fan DC power terminal 4 for fan power supply; in this embodiment, the fan DC power terminal is mainly used to connect a DC fan, and the fan DC power terminal is connected in parallel with a plurality of parallel lamp bead groups. That is, the voltage of the fan can be the overall voltage of the parallel lamp bead groups, so that the normal use of the fan can be satisfied, and it does not require a corresponding transformer, winding and filter capacitor, which is conducive to reducing the use of electronic components, and is also conducive to improving the effectiveness and stability of use, and reducing the processing and use costs.

[0018] In actual application, the number of lamp beads in the lamp bead group is greater than one and less than ten, and the lamp beads in the lamp bead group are connected in series. That is, the number of lamp beads in the lamp bead group can be wired according to the needs during wiring.

[0019] In this embodiment, the circuit board is a circular circuit board, the lamp bead driving circuit is located in the middle of the circular circuit board, and the fan DC power terminal is located at the edge of the circular circuit board.

[0020] The present invention has positive effects: the structure of the present invention is reasonably arranged, and a fan DC power terminal connected in parallel with the lamp bead group is arranged on the circuit board, that is, the fan can be directly electrically connected to the fan DC power terminal, which not only improves the connection convenience of the fan, but also reduces the use of transformers, windings and filter capacitors, which is conducive to saving electronic components and processing costs. In addition, the fan is powered by DC, which ensures the stability and reliability of the fan.

[0021] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0022] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An LED light-emitting circuit board with direct power supply from a fan, comprising a circuit board, on which a plurality of lamp bead groups are arranged, characterized in that: The circuit board is provided with a lamp bead driving circuit connected to the lamp bead group; The circuit board is also provided with a fan DC power supply terminal for drawing power from the fan; The fan DC power terminal is connected in parallel with a plurality of parallel lamp bead groups.

2. The LED light-emitting circuit board with direct fan power supply according to claim 1, characterized in that: The number of lamp beads in the lamp bead group is greater than one and less than ten, and the lamp beads in the lamp bead group are connected in series.

3. The LED light-emitting circuit board with direct fan power supply according to claim 1, characterized in that: The circuit board is a circular circuit board, the lamp bead driving circuit is located in the middle of the circular circuit board, and the fan DC power terminal is located at the edge of the circular circuit board.

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