Constant-voltage constant-current tailorable low-voltage advertising lamp without connection of loop

Abstract

The utility model discloses a constant-voltage constant-current tailorable low-voltage advertising lamp without connecting a loop, which comprises a PCB (printed circuit board) substrate, LED (light-emitting diode) lamp beads, a lens, a constant-current component and an electric wire, the LED lamp beads are mounted on the surface of the PCB substrate, the constant-current component is used for keeping the LED lamp beads constant in voltage and current, and the electric wire is fixedly welded with the PCB substrate. The PCB substrate made of the aluminum substrate is stable in heat dissipation and can be randomly cut without influencing the use of other lamps, the cut lamp strip can be continuously used with a power supply, waste is reduced, constant-current output is realized through the constant-current diode, the constant-current triode or the IC module, the PCB substrate is used as a current carrier to reach the LED, the LED emits light, the input voltage and the output voltage are low, and the service life of the LED is prolonged. And the constant current design enables the light bars to be high in brightness consistency, low in loss and free of voltage drop, all the light bars do not need to be connected with a loop, the installation cost is saved, and the installation efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light bars, in particular to a low-voltage advertising lamp with constant voltage and current which can be cut and does not need to be connected to a circuit. Background Art

[0002] The existing low-voltage light strips with DC12V, DC24V, DC30V, and DC48V inputs use resistors to adjust the current. If more than 20 strips are connected at the same time, there will be a voltage drop, resulting in inconsistent voltages at the beginning and the end, and uneven brightness of the light strips at the beginning and the end. In order to solve the voltage drop problem, two more wires must be used to supplement the power at the tail end, which will result in a waste of materials, difficulty in wiring, low installation efficiency, and very high installation costs.

[0003] The existing AC220V input high-voltage light strips use a constant current output solution, with no voltage drop and no need to connect to a circuit. They are very easy to install, save materials, and have low installation costs. However, the light strips have poor stability, are prone to customer complaints, and are higher than the human safety voltage of 36V, posing certain safety hazards.

[0004] The method of adjusting the current by resistors results in large light strip losses and low conversion efficiency.

[0005] In order to solve the above problems, this application designs a low-voltage advertising light with constant voltage and constant current that can be cut and does not need to be connected to a circuit. It combines the advantages of traditional low-voltage DC constant voltage light strips and high-voltage constant current light strips, and eliminates the shortcomings of these two light strips. It does not need to be connected to a circuit, ensures human safety, improves product quality, reduces the cost of light strips, reduces light strip losses, saves energy, and is convenient for customers to install. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In view of the above problems and / or the problems existing in the use of low-voltage advertising lamps with constant voltage and constant current that can be cut without connecting to a circuit, the present utility model is proposed.

[0008] Therefore, the purpose of the utility model is to provide a low-voltage advertising lamp with constant voltage and constant current that can be cut without connecting to a circuit. The lens is fixed by glue, and the PCB substrate is made of an aluminum substrate, which has stable heat dissipation and can be cut at will without affecting the use of other lamps. The cut light strips can continue to be used by adding a power supply, thereby reducing waste. The constant current output is output through a constant current diode, a constant current transistor or an IC module, and then reaches the LED through the PCB substrate as a current carrier. The LED emits light, and the input and output voltages are low, which is safe and reliable. The constant current design makes the brightness consistency of the light strip very high, with low loss and no voltage drop. All light strips do not need to be connected to a circuit, thereby saving installation costs and improving installation efficiency.

[0009] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0010] A constant voltage and constant current low voltage advertising lamp which can be cut and does not need to be connected to a circuit, comprising:

[0011] PCB substrate;

[0012] LED lamp beads, the LED lamp beads are mounted on the surface of the PCB substrate, and the surface of the PCB substrate is provided with a lens covering the periphery of the LED lamp beads;

[0013] Constant current components, which are used to maintain constant voltage and constant current of LED lamp beads;

[0014] The electric wire is fixedly welded to the PCB substrate.

[0015] As a preferred solution of the constant voltage and constant current low-voltage advertising lamp described in the utility model, which can be cut and does not need to be connected to a circuit, the PCB substrate is made of multiple sections of aluminum substrates welded together, and the thickness of the PCB substrate is 0.5-2 mm.

[0016] As a preferred solution of the constant voltage and constant current low-voltage advertising lamp described in the utility model, which can be cut and does not need to be connected to a circuit, an adhesive portion is provided between the lens and the PCB substrate.

[0017] As a preferred solution for a constant voltage and constant current low-voltage advertising lamp described in the utility model, which can be cut and does not need to be connected to a circuit, the constant current component is located on the surface of the PCB substrate, 1 to 12 LED lamp beads are matched with 1 constant current component, and the constant current component is a constant current diode, a constant current transistor or an IC module.

[0018] As a preferred solution of the constant voltage and constant current low-voltage advertising lamp described in the utility model, which can be cut and does not need to be connected to a circuit, a U-shaped material is arranged outside the PCB substrate, and a sealing layer is arranged between the U-shaped material and the PCB substrate.

[0019] Compared with the prior art, the utility model has the beneficial effects of: this kind of constant voltage and constant current can be cut to form a low-voltage advertising lamp that does not need to be connected to a circuit. The lens is fixed by glue, and the PCB substrate is made of an aluminum substrate, which has stable heat dissipation and can be cut at will without affecting the use of other lamps. The cut light strip can continue to be used by adding a power supply, which reduces waste. The constant current output is output through a constant current diode, a constant current transistor or an IC module, and then reaches the LED through the PCB substrate as a current carrier. The LED emits light, and the input and output voltages are low, which is safe and reliable. The constant current design makes the brightness consistency of the light strip very high, the loss is small, and there is no voltage drop. All light strips do not need to be connected to a circuit, which saves installation costs and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 This is a schematic diagram of the structure of a constant current diode of a low-voltage advertising lamp that can be cut and does not need to be connected to a circuit.

[0022] Figure 2 This is a schematic diagram of the structure of a constant current triode of a low-voltage advertising lamp that can be cut and does not need to be connected to a circuit.

[0023] Figure 3 This is a schematic diagram of the IC module structure of a low-voltage advertising lamp that can be cut and does not need to be connected to a circuit.

[0024] Figure 4 This is a schematic diagram of the structure of a profile of a low-voltage advertising lamp that can be cut and does not need to be connected to a circuit.

[0025] Figure 5 This is a schematic diagram of the structure of a circular PCB substrate of a low-voltage advertising lamp that can be cut and does not need to be connected to a circuit.

[0026] Figure 6 The utility model is a schematic diagram of the structure of a square PCB substrate of a low-voltage advertising lamp which has constant voltage and constant current and can be cut without connecting to a circuit.

[0027] 100, PCB substrate; 110, bonding part; 120, profile; 121, waterproof sealing layer; 200, LED lamp beads; 210, lens; 300, constant current components; 400, wires. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged at a general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The utility model provides a low-voltage advertising lamp with constant voltage and constant current, which can be cut without being connected to a circuit. The lens is fixed by glue, and the PCB substrate is made of an aluminum substrate, which has stable heat dissipation and can be cut at will without affecting the use of other lamps. The cut light strip can continue to be used by adding a power supply, thereby reducing waste. The constant current output is output through a constant current diode, a constant current transistor or an IC module, and then reaches the LED through the PCB substrate as a current carrier. The LED emits light, and both the input and output voltages are low, which is safe and reliable. The constant current design makes the brightness consistency of the light strip very high, the loss is small, and there is no voltage drop. All light strips do not need to be connected to a circuit, thereby saving installation costs and improving installation efficiency.

[0032] Figure 1-Figure 4 The structure diagram of a constant voltage and constant current low voltage advertising lamp which can be cut without circuit connection is shown in the utility model. Figure 1-Figure 4 The present embodiment provides a constant voltage and constant current low-voltage advertising lamp that can be cut and does not need to be connected to a circuit. The main body thereof includes a PCB substrate 100, an LED lamp bead 200, a lens 210, a constant current component 300 and a wire 400.

[0033] The PCB substrate 100 fixes the lens 210 by glue. The PCB substrate 100 made of the aluminum substrate 100 has stable heat dissipation and can be cut at will without affecting the use of other lights. The cut light strip can be used again after adding a power supply, which reduces waste. The sealing layer 121 can also be coated with waterproof glue to improve the protection of the U-shaped material 120 on the PCB substrate 100 and improve the waterproof performance of the light strip. It has a wide range of applications. The lens 210 is used to change the light-emitting angle of the LED lamp bead 200 to make the light more uniform and softer. And not dazzling, specifically, in this embodiment, the surface of the PCB substrate 100 is provided with a lens 210 covering the outer periphery of the LED lamp bead 200, and an adhesive portion 110 is provided between the lens 210 and the PCB substrate 100, and a U-shaped material 120 is provided outside the PCB substrate 100, and a sealing layer 121 is provided between the U-shaped material 120 and the PCB substrate 100, and the PCB substrate 100 is welded by welding multiple sections of aluminum substrates 100, and the thickness of the PCB substrate 100 is 0.5-2 mm;

[0034] The LED lamp bead 200 conducts electricity through the PCB substrate 100, and the LED lamp bead 200 emits light. Specifically, the LED lamp bead 200 is mounted on the surface of the PCB substrate 100;

[0035] The constant current component (300) outputs a constant current through a constant current diode, a constant current transistor or an IC module, and then reaches the LED through the PCB substrate 100 as a current carrier. The LED emits light, and both the input and output voltages are low, which is safe and reliable. The constant current design makes the brightness consistency of the light bar very high, with low loss and no voltage drop. All light bars do not need to be connected to the circuit, which saves installation costs and improves installation efficiency. Specifically, the constant current component 300 is used to maintain a constant voltage and constant current of the LED lamp bead 200. In this embodiment, the constant current component 300 is located on the surface of the PCB substrate 100, and 1 to 12 LED lamp beads 200 are matched with one constant current component 300. The constant current component 300 is a constant current diode, a constant current transistor or an IC module;

[0036] The wire 400 has a mutual conduction function between different light bars. Specifically, the wire 400 is fixedly welded to the PCB substrate 100 .

[0037] Figure 5 The structure diagram of another embodiment of the utility model is a constant voltage and constant current low-voltage advertising lamp that can be cut without connecting to a circuit. Please refer to Figure 5 In this embodiment, a constant voltage and constant current low-voltage advertising lamp is cuttable and does not need to be connected to a circuit. The PCB substrate 100 can be set to a circular shape and can be adapted for assembly and use with a circular advertising lamp.

[0038] Figure 6The structure diagram of another embodiment of the utility model is a constant voltage and constant current low-voltage advertising lamp that can be cut without connecting to a circuit. Please refer to Figure 6 In this embodiment, a constant voltage and constant current low-voltage advertising lamp is cuttable and does not need to be connected to a circuit. The PCB substrate 100 can be set to a square shape and can be assembled and used to adapt to square-shaped advertising lamps.

[0039] Combination Figure 1-Figure 6 The present embodiment is a constant voltage and constant current low-voltage advertising lamp that can be cut without connecting to a circuit. The specific use process is as follows: the lens 210 is fixed by glue, and the PCB substrate 100 made of the aluminum substrate 100 has stable heat dissipation and can be cut at will without affecting the use of other lamps. The cut light strip can continue to be used by adding a power supply, which reduces waste. The constant current output is output through a constant current diode, a constant current transistor or an IC module, and then the PCB substrate 100 is used as a current carrier to reach the LED. The LED emits light, and the input and output voltages are low, which is safe and reliable. The constant current design makes the brightness consistency of the light strip very high, the loss is small, and there is no voltage drop. All light strips do not need to be connected to a circuit, which saves installation costs and improves installation efficiency.

[0040] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A constant voltage and constant current low voltage advertising lamp that can be cut without connecting to a circuit, characterized in that: include: PCB substrate(100); An LED lamp bead (200), wherein the LED lamp bead (200) is mounted on the surface of a PCB substrate (100), and a lens (210) covering the outer periphery of the LED lamp bead (200) is provided on the surface of the PCB substrate (100); A constant current component (300), the constant current component (300) being used to maintain a constant voltage and constant current of the LED lamp bead (200); An electric wire (400) is fixedly welded to a PCB substrate (100).

2. According to claim 1, a constant voltage and constant current low-voltage advertising lamp that can be cut and does not need to be connected to a circuit, characterized in that: The PCB substrate (100) is made by welding multiple sections of aluminum substrates, and the thickness of the PCB substrate (100) is 0.5 to 2 mm.

3. According to claim 2, a constant voltage and constant current low-voltage advertising lamp that can be cut and does not need to be connected to a circuit, characterized in that: An adhesive portion (110) is provided between the lens (210) and the PCB substrate (100).

4. According to claim 3, a constant voltage and constant current low-voltage advertising lamp that can be cut and does not need to be connected to a circuit, characterized in that: The constant current component (300) is located on the surface of the PCB substrate (100); 1 to 12 LED lamp beads (200) are matched with one constant current component (300); and the constant current component (300) is a constant current diode, a constant current triode or an IC module.

5. According to claim 4, a constant voltage and constant current low-voltage advertising lamp that can be cut and does not need to be connected to a circuit, characterized in that: A U-shaped material (120) is arranged outside the PCB substrate (100), and a sealing layer (121) is arranged between the U-shaped material (120) and the PCB substrate (100).

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