CN219036353U - LED lamp strip - Google Patents

Abstract

The utility model belongs to the technical field of LED illumination, and discloses an LED lamp strip, which comprises a hollow shell and plugs plugged at two ends of the shell, wherein a light source is arranged in the shell, the light source comprises a circuit board and LED lamp beads which are arranged on the circuit board in series, and a slot for installing the circuit board is arranged in the shell; the outer surface of the luminous surface of the shell is a smooth cambered surface, and the inner surface of the luminous surface is provided with stripes. According to the LED lamp strip provided by the utility model, the outer side of the shell is smooth, the inner side of the shell is longitudinally designed into a plurality of fine stripe structures, so that the transverse angle of the light beam emitted by the light source after being reflected, refracted and mixed by the fine stripes is larger than 150 degrees, more uniform light beams can be emitted, the transverse visual angle of the light is enlarged, and the light coincidence between the lamp strips is better. And the product has compact structure and convenient installation.

Description

LED lamp strip

Technical Field

The utility model belongs to the technical field of LED illumination, and particularly relates to an LED lamp strip.

Background

In recent years, LEDs are increasingly used as a green and energy-saving solid-state light source in various fields, and in the advertising industry, there are many advertising light boxes in areas with increased population flow, such as subways, railway stations, bus stops and squares, however, in the process of implementing the present utility model, the inventors found that at least the following problems exist in the prior art: the traditional light source mostly adopts an LED back lighting mode, 25% of electric energy is converted into radiant energy and heat energy through a current limiting resistor to be wasted when the light source emits light, and direct current is obtained through an AC-DC constant voltage power supply, so that the conversion efficiency is low, the current flowing through each LED light source lamp bead is inconstant, a large space is occupied, and a series of problems such as inconvenient installation are solved.

Disclosure of Invention

The present utility model aims to solve the above technical problems at least to some extent. Therefore, the utility model aims to provide an LED light bar.

The technical scheme adopted by the utility model is as follows:

the LED lamp strip comprises a hollow shell and plugs plugged at openings at two ends of the shell, wherein a light source is arranged in the shell and comprises a circuit board and LED lamp beads which are arranged on the circuit board in series, and a slot for installing the circuit board is formed in the shell; the outer surface of the luminous surface of the shell is a smooth cambered surface, the inner surface of the luminous surface is convexly provided with stripes, and the stripes are arranged along the length direction of the shell.

Preferably, an input bonding pad, a piezoresistor and a rectifier bridge are arranged at the initial end of the circuit board, a constant current driving unit is arranged at the tail end of the circuit board, the piezoresistor and the rectifier bridge are connected in parallel, a plurality of LED lamp beads are connected in series between the rectifier bridge and the constant current driving unit, and an electrolytic capacitor is arranged on a connecting circuit between the rectifier bridge and the LED lamp beads.

Preferably, the tail end of the circuit board is further provided with a current setting resistor and an anti-surge capacitor, and the current setting resistor and the anti-surge capacitor are electrically connected with the constant current driving unit.

Preferably, a release resistor is connected in parallel on the LED lamp bead between the rectifier bridge and the constant current driving unit.

Preferably, a fuse is arranged on a connecting circuit of the electrolytic capacitor and the piezoresistor.

Preferably, the plug is provided with a threading hole along the length direction thereof, and the plug is provided with a mounting hole perpendicular to the length direction thereof.

The beneficial effects of the utility model are as follows:

1. according to the LED lamp strip provided by the utility model, the outer side of the shell is smooth, the inner side of the shell is longitudinally designed into a plurality of fine stripe structures, so that the transverse visual angle of light emitted by the light source is enlarged, and the light coincidence between the lamp strips is better.

2. The LED lamp strip provided by the utility model has the advantages of integrated light source design, compact product structure, convenience in installation, and no electric shock hazard, and the light source is sealed in the insulating shell and the plug.

3. The LED light bar provided by the utility model omits an AC-DC constant voltage switching power supply with lower efficiency, adopts a constant current driving scheme with integrated lamp driving and high efficiency, and effectively saves energy and reduces cost.

Drawings

FIG. 1 is a schematic view of an LED light bar of the present utility model.

Fig. 2 is a schematic cross-sectional view of the housing of the present utility model.

Fig. 3 is a front view of the plug of the present utility model.

Fig. 4 is a top view of the plug of the present utility model.

Fig. 5 is a left side view of the plug of the present utility model.

Fig. 6 is a circuit diagram of a light source of the present utility model.

Fig. 7 is a schematic view of the light distribution of the light source of the present utility model.

FIG. 8 is a schematic diagram of the connection of a plurality of LED light bars according to the present utility model.

In the figure: 1-a housing; 2-plugs; 3-a circuit board; 4-LED lamp beads; 5-mounting a panel; 6-arc panel; 7-a slot; 8-stripes; 9-piezoresistors; 10-rectifying bridge; 11-a fuse; 12-electrolytic capacitor; 13-a constant current driving unit; 14-a current setting resistor; 15-an anti-surge capacitor; 16-a release resistor; 17-threading holes; 18-mounting holes.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present utility model, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the product of the present utility model is used, or the orientation or positional relationship conventionally understood by those skilled in the art is merely for convenience of describing the present utility model and simplifying the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.

The utility model will be further described with reference to the drawings and specific examples.

As shown in fig. 1 to 8, the LED light bar of this embodiment mainly includes a housing 1, plugs 2 and a light source, the housing 1 is a hollow elongated structure, the two plugs 2 are respectively plugged at openings at two ends of the housing 1, and the light source is disposed in the housing 1. The shell 1 is formed by extruding transparent polycarbonate materials or transparent engineering plastics, the outer surface of the luminous surface of the shell 1 is a smooth cambered surface, stripes 8 are arranged on the inner surface of the luminous surface, and the stripes 8 are arranged along the length direction of the shell 1. As shown in FIG. 7, the stripes are used for expanding the transverse viewing angle by reflection and refraction of the light emitted by the light source, so that the problem of poor light superposition between the light bars can be effectively solved.

The plug 2 is made of polycarbonate material or engineering plastic, as shown in fig. 3, 4 and 5, the bottom of the plug 2 is flat, the top of the plug 2 is of an arc structure, one side of the plug 2 is flat and provided with a mounting hole 18, and the mounting hole 18 is convenient for fixing a lamp strip to a mounting position through a screw; the central axis of the plug 2 is provided with a threading hole 17 along the length direction, and the threading hole 17 is convenient for a power line to penetrate into the closed cavity and be connected with the starting end of the light source. The plug 2 and the shell 1 are bonded and sealed through silica gel to form a closed space, the shell made of transparent polycarbonate material and the plug made of polycarbonate material or engineering plastic are sealed through silica gel, and the thermal expansion coefficients are close, so that gaps are not easy to occur when the heat and the cold are alternated, and the waterproof effect is good.

The light source comprises a circuit board 3 and a plurality of LED lamp beads 4 which are installed on the circuit board 3 in series, a slot 7 for installing the circuit board 3 is arranged at the bottom of the cross section inside the shell 1, and the circuit board 3 can be inserted into the slot 7 for fixed installation. The circuit board 3 is an aluminum substrate with high heat conductivity coefficient so as to improve the heat dissipation effect. The LED lamp beads 4 are patch diodes manufactured through a surface mounting process, and the color temperature can be selected according to practical purposes.

As shown in fig. 2, in the present embodiment, the housing 1 includes a mounting panel 5 and an arc-shaped panel 6 covered on the mounting panel 5, and the slot 7 is provided on the mounting panel 5, and the bottom of the mounting panel 5 is flat, so that the mounting is convenient; the surface of arc panel 6 is the light emitting surface, and the light emitting surface is smooth, is difficult for receiving the dust influence, and the internal surface of arc panel 6 epirelief is equipped with many stripes 8, and every stripe 8 all sets up along the length direction of arc panel 6.

As shown in fig. 6, an input pad, a piezoresistor 9 and a rectifier bridge 10 are arranged at the initial end of the circuit board 3, and the piezoresistor 9 and the rectifier bridge 10 are connected in parallel; the constant current driving unit 13 is arranged at the tail end, a plurality of LED lamp beads are connected in series, and the constant current driving unit is arranged on the circuit board, so that the cost can be reduced. The LED lamp beads 4 are connected in series between the rectifier bridge 10 and the constant current driving unit 13, an electrolytic capacitor 12 is arranged on a connecting circuit between the rectifier bridge 10 and the LED lamp beads 4, and a fuse 11 is arranged on a connecting circuit between the electrolytic capacitor 12 and the piezoresistor 9.

The input bonding pad is connected with an external power supply and introduces electric energy, the introduced electric energy is supplied to the rectifier bridge 10 and the electrolytic capacitor 12 through the fuse 11 and the piezoresistor 9, and the electric energy is supplied to the LED lamp beads to enable the LED lamp beads to emit light after rectification and filtering. The fuse 11, the piezoresistor 9, the rectifier bridge 10 and the electrolytic capacitor 12 respectively play roles of overcurrent protection, overvoltage protection, rectification and filtering, and provide direct current electric energy for the LED lamp beads and working voltage and current for the constant current driving unit 13.

The tail end of the circuit board 3 is also provided with a current setting resistor 14 and an anti-surge capacitor 15, the current setting resistor 14 and the anti-surge capacitor 15 are electrically connected with the constant current driving unit 13 to form constant current driving, and the current flowing through the LED lamp beads is set through the current setting resistor 14. The LED lamp bead 4 between the rectifier bridge 10 and the constant current driving unit 13 is connected with a release resistor 16 in parallel.

The fuse 11 adopts a fusing type patch fuse, and a rated current value is selected according to working current; the piezoresistor 9 is a product capable of bearing 2 times of input voltage and 2000A surge current; the rectifier bridge 10 adopts a withstand voltage 600V and a current 1000mA product; the electrolytic capacitor 12 is a small product with the withstand voltage of 400V, 4.7uF and the service life of over 8000 hours; the constant current driving unit 13 adopts a high-voltage linear constant current chip or a high-voltage linear constant current dimming chip without magnetic components, so that on one hand, the circuit is simplified, the reliability is improved, and on the other hand, the influence of electromagnetic radiation on peripheral electric appliances is avoided; the current setting resistor 14 and the release resistor 16 adopt patches to package products, and select power and resistance according to the product requirements; the anti-surge capacitor 15 is a 10nF/1kv chip package product.

The LED light bar is different from the traditional AC-DC switching power supply which is required by direct current driving, and can be directly connected by AC220V/AC110V mains supply, so that the LED light bar has the advantages of saving energy, saving space, being safe and reliable, being simple and convenient to install and the like. As shown in fig. 8, each LED light bar is directly connected in parallel with AC220V mains without passing through an AC-DC switching power supply.

Fig. 1 and 6 of the present application are drawings in which the length is omitted.

The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.

Claims (8)

1. The utility model provides a LED lamp strip which characterized in that: the LED lamp comprises a hollow shell (1) and plugs (2) plugged at two ends of the shell (1), wherein a light source is arranged in the shell (1), the light source comprises a circuit board (3) and LED lamp beads (4) which are arranged on the circuit board (3) in series, and a slot (7) for installing the circuit board (3) is formed in the shell (1); the outer surface of the luminous surface of the shell (1) is a smooth cambered surface, the inner surface of the luminous surface is provided with stripes (8), and the stripes (8) are arranged along the length direction of the shell (1).

2. The LED light bar of claim 1, wherein: an input bonding pad, a piezoresistor (9) and a rectifier bridge (10) are arranged at the starting end of the circuit board (3), a constant current driving unit (13) is arranged at the tail end of the circuit board, the piezoresistor (9) and the rectifier bridge (10) are connected in parallel, a plurality of LED lamp beads (4) are connected between the rectifier bridge (10) and the constant current driving unit (13) in series, and an electrolytic capacitor (12) is arranged on a connecting circuit between the rectifier bridge (10) and the LED lamp beads (4).

3. The LED light bar of claim 2, wherein: the tail end of the circuit board (3) is also provided with a current setting resistor (14) and an anti-surge capacitor (15), and the current setting resistor (14) and the anti-surge capacitor (15) are electrically connected with the constant current driving unit (13).

4. The LED light bar of claim 2, wherein: and a release resistor (16) is connected in parallel on the LED lamp bead (4) between the rectifier bridge (10) and the constant current driving unit (13).

5. The LED light bar of claim 2, wherein: and a fuse (11) is arranged on a connecting circuit of the electrolytic capacitor (12) and the piezoresistor (9).

6. The LED light bar of claim 1, wherein: the plug (2) is provided with a threading hole (17) along the length direction of the plug, and the plug (2) is provided with a mounting hole (18) perpendicular to the length direction of the plug.

7. The LED light bar of claim 1, wherein: the plug (2) and the shell (1) are bonded and sealed through silica gel.

8. The LED light bar of claim 1, wherein: the circuit board (3) is an aluminum substrate.

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