CN203384767U

CN203384767U - Light-emitting diode (LED) advertising lamp box light source based on 220V alternating current

Info

Publication number: CN203384767U
Application number: CN201320341088.4U
Authority: CN
Inventors: 李忠训
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-15
Filing date: 2013-06-15
Publication date: 2014-01-08
Anticipated expiration: 2023-06-15

Abstract

The utility model discloses a light-emitting diode (LED) advertising lamp box light source based on 220V alternating current. Through the LED advertising lamp box light source, the problem that the existing LED advertising lamp box light source can not be connected with external 220V alternating current directly is solved. The LED advertising lamp box light source is characterized by comprising an LED advertising lamp box power supply and a polyvinyl chloride (PVC) casing for packaging the LED advertising lamp box power supply. The LED advertising lamp box power supply comprises an aluminum base circuit board and a power circuit arranged on the aluminum base circuit board and connected with the external 220V alternating current directly through a connector. The power circuit comprises a piezoresistor R1, a rectifier D1 and a constant current diode D2 which form a circuit with an LED and the external 220V alternating current. An electrolytic capacitor C1 in parallel connection with the LED is arranged in the circuit. By means of the LED advertising lamp box light source, the purpose of connecting the external 220V alternating current directly is achieved, the problem of voltage attenuation is solved, a water-proof effect is guaranteed, and high practical value and popularizing value are achieved.

Description

LED advertising lamp-box light source based on the 220V alternating current

Technical field

The utility model relates to a kind of, specifically, relates to a kind of LED advertising lamp-box light source based on the 220V alternating current.

Background technology

At present, the lamphouse light source that the advertisement and identifier industry is used, all adopt LED light source mostly, thus the conventional light source such as replacement fluorescent lamp.And these LED light sources, what it adopted is all the technical scheme that low-voltage dc power supply separates with the LED luminescence component, as Fig. 1; Mainly there is following problem in this technical scheme:

The LED driving voltage is low-voltage DC, and this just makes the LED light source in lamp box need to be equipped with separately dc source.Because there being problem of pressure drop, the fed distance of LED power supply is shorter, and voltage attenuation is large; If adopt the waterproof power supply, cost will increase greatly.And the quality problems due to current power supply itself, cause the fault rate of whole LED light source system obviously to increase.And the light source connecting line is usually in utter disorder during the access lamp box, cause client's installation and maintenance very inconvenient.

The utility model content

The purpose of this utility model is to provide a kind of LED advertising lamp-box light source based on the 220V alternating current, mainly solves the problem that LED luminous lamp house in prior art can't direct external 220V alternating current.

To achieve these goals, the technical solution adopted in the utility model is as follows:

LED advertising lamp-box light source based on the 220V alternating current, is characterized in that, comprises LED advertising lamp box power supply, and for encapsulating the PVC shell of this LED advertising lamp box power supply; Described LED advertising lamp box power supply comprises aluminum base circuit board, and is installed on this aluminum base circuit board and by connector and the direct-connected power circuit of extraneous 220V alternating current.

Further, described power circuit comprises piezo-resistance R1, rectifier D1 and the current regulator diode D2 with LED, extraneous 220V alternating current formation loop, and is provided with the electrochemical capacitor C1 in parallel with LED in this loop.

For aluminum base circuit board being formed to effective encapsulation, and then reach the effect of waterproof and dustproof, described PVC shell comprises for the PVC groove of described power circuit is installed, be positioned at the PVC plug of these PVC groove two ends for its opening two ends of shutoff, and match described power circuit is completely enclosed within to its inner PVC protective cover with described PVC groove, PVC plug.

Again further, described power circuit by silica gel in described PVC groove.

Say exactly, described connector one end is connected with power circuit, and the other end is communicated with extraneous 220V alternating current by 3-point line Ka Gai.

Further, described PVC groove is strip, and PVC plug, PVC protective cover and described PVC groove are complementary.

Compared with prior art, the utlity model has following beneficial effect:

(1) the utility model is from creating DC converting circuit, and it LED operating circuit is integrated in same module, thereby realized the function of the direct external 220V alternating current of LED advertising lamp box, make it when reality is used, can directly use civil power, need not remake conversion, greatly simplified the installation difficulty of LED advertising lamp box, used convenient.

(2) the utility model need not be equipped with expensive direct current waterproof power supply again, effectively reduces production cost and installation cost.

(3) circuit that the utility model adopts is simplified reliably, the rectifying device of take is core, the 220V alternating current direct is switched through to the direct current for 240V, supply with the operating circuit of the some LED of series connection, and accessed a current regulator diode in the loop of LED operating circuit, thereby guarantee that LED works in constant current state all the time, luminous even all the time.

(4) the utility model adopts 3-point line Ka Gai, and the main line electric current is assigned to each branch road, then by connector, external circuit and circuit board line is connected, and corded arrangement is clear reliably, effective ground line confusion, and installation and maintenance are very convenient.

(5) the utility model specialized designs a set of PVC shell combined by PVC groove, PVC plug and PVC protective cover, for encapsulating whole circuit board, reach the effect of water proof and dust proof; Simultaneously, also be filled with silica gel in inside, its protection effect is promoted greatly, durable degree improves greatly.

The accompanying drawing explanation

The system block diagram that Fig. 1 is prior art.

Fig. 2 is structural representation of the present utility model.

The circuit theory diagrams that Fig. 3 is power circuit in the utility model-embodiment.

In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows:

The 1-connector, 2-PVC groove, 3-PVC protective cover, 4-3-point line Ka Gai.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.

Embodiment

As shown in Figure 2 and Figure 3, LED advertising lamp-box light source based on the 220V alternating current, mainly by LED advertising lamp box power supply and PVC shell, formed, wherein, LED advertising lamp box power supply comprises piezo-resistance R1, rectifier D1 and the current regulator diode D2 with LED, connector, 3-point line Ka Gai formation loop, and is provided with the electrochemical capacitor C1 in parallel with LED in this loop; 3-point line Ka Gai is communicated with extraneous 220V alternating current simultaneously.In addition, in the present embodiment, also configured a small amount of auxiliary electrical device, for coordinating with above-mentioned main components, jointly realize the function of power circuit, what these auxiliary elements belonged to above-mentioned piezo-resistance, rectifier, current regulator diode work must the orchestration part, belongs to common practise, at this, does not elaborate.

In an embodiment, the PVC shell belongs to a design point of the present utility model, it is comprised of PVC groove, PVC plug and PVC protective cover, the whole growth bar shaped of PVC groove, the aluminum base circuit board that at first will be loaded with power circuit during installation sticks in the PVC groove, uses afterwards soft PVC plug by the two ends shutoff of PVC groove, then fills water-proof silica-gel in the space surrounded to PVC groove and PVC plug, finally the PVC protective cover is connected between PVC groove and PVC plug, forms an airtight space.Certainly, on the PVC plug, offer through hole, the power line of power supply source circuit extends to the PVC housing exterior and is connected with connector, and the other end of connector is communicated with outside 220V alternating current in 3-point line card lid.

See on the whole, the utility model utilizes 3-point line Ka Gai that power supply main line and power distribution cable is separated clearly, not only makes client or installation personnel easily complete installation, and later maintenance is also very simple, does not have the problem of circuit confusion fully.

The utility model is in the redesign that utilizes power circuit and when realizing the direct external 220V alternating current of LED advertising lamp box, by rectifier and LED lamp are integrated on same circuit board, after rectification, DC voltage is up to 240V, thereby avoided low-voltage DC electric energy loss on the line fully, avoided a large amount of decay of LED voltage of both ends of lamp.

Above embodiment is only preferred embodiment of the present utility model, and not to the restriction of the utility model protection domain, all non-creativeness that utilizes design principle of the present utility model and carry out change, and all belong to the protection domain of our utility model.

Claims

1. the LED advertising lamp-box light source based on the 220V alternating current, is characterized in that, comprises LED advertising lamp box power supply, and for encapsulating the PVC shell of this LED advertising lamp box power supply; Described LED advertising lamp box power supply comprises aluminum base circuit board, and is installed on this aluminum base circuit board and passes through connector (1) and the direct-connected power circuit of extraneous 220V alternating current.

2. the LED advertising lamp-box light source based on the 220V alternating current according to claim 1, it is characterized in that, described power circuit comprises piezo-resistance R1, rectifier D1 and the current regulator diode D2 with LED, extraneous 220V alternating current formation loop, and is provided with the electrochemical capacitor C1 in parallel with LED in this loop.

3. the LED advertising lamp-box light source based on the 220V alternating current according to claim 1 and 2, it is characterized in that, described PVC shell comprises for the PVC groove (2) of described power circuit is installed, be positioned at these PVC groove (2) two ends for the PVC plug at its opening two ends of shutoff, and match with described PVC groove (2), PVC plug described power circuit is completely enclosed within to its inner PVC protective cover (3).

4. the LED advertising lamp-box light source based on the 220V alternating current according to claim 3, is characterized in that, described power circuit by silica gel in described PVC groove (2).

5. the LED advertising lamp-box light source based on the 220V alternating current according to claim 4, is characterized in that, described connector (1) one end is connected with power circuit, and the other end is communicated with extraneous 220V alternating current by 3-point line Ka Gai (4).

6. the LED advertising lamp-box light source based on the 220V alternating current according to claim 5, is characterized in that, described PVC groove (2) is strip, and PVC plug, PVC protective cover (3) and described PVC groove (2) are complementary.