LED flexible circuit board and lamp strip
The problem of difficult welding of components is solved by electroplating copper layers on an aluminum substrate, reducing costs and weight is achieved, and the reliability of welding is ensured.
Patent Information
- Application Number
- CN202422265979.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
It is difficult for existing LED flexible circuit boards to weld components to aluminum substrates, resulting in high costs and difficult to replace copper substrates.
An aluminum substrate is used and a copper layer is electroplated at the solder holes. The copper layer is adsorbed onto the aluminum substrate for easy welding of components and the copper layer is connected to the solder.
Reduces cost and weight, while achieving reliable welding of components, with less material used in copper and lower aluminum density than copper.
Smart Images
Figure CN223182386U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of LED strip lights, in particular to an LED flexible circuit board and a strip light. Background Art
[0002] An LED strip light generally includes a lamp housing and an LED flexible circuit board disposed in the flexible lamp housing. Existing LED flexible circuit boards generally use copper as the conductive base material, with an insulating film covered on the copper substrate. A plurality of through holes are formed in the insulating film, and then components such as LED lamp beads and resistors are soldered to the copper substrate through soldering at the through holes. However, the price of copper is high. To reduce costs, some people replace the copper substrate with an aluminum substrate. Although the aluminum substrate can conduct electricity, it is difficult to tin, and it is difficult to solder components to the aluminum substrate. Content of the Utility Model
[0003] An object of the utility model is to at least solve one of the technical problems existing in the prior art, and to provide an LED flexible circuit board and a strip light that are convenient for soldering components to an aluminum substrate.
[0004] The LED flexible circuit board according to the first aspect embodiment of the utility model includes an aluminum substrate and an insulating film covering the front surface of the aluminum substrate. A plurality of welding holes are formed in the insulating film to expose a part of the aluminum substrate, and a copper layer is electroplated in the welding holes to adsorb to the exposed part of the aluminum substrate. The copper layer can be soldered with solder.
[0005] The strip light according to the second aspect embodiment of the utility model includes: a flexible lamp housing, and the LED flexible circuit board is disposed in the flexible lamp housing.
[0006] The LED flexible circuit board and the strip light according to the embodiment of the utility model have at least the following beneficial effects: only a copper layer needs to be electroplated at the welding holes, and the copper layer can adsorb to the aluminum substrate. The copper layer is relatively easy to tin, and components such as lamp beads can be soldered to the copper layer with solder. First, the aluminum substrate is used to replace the existing copper substrate, and only a copper layer needs to be electroplated at several welding holes. The amount of copper used is very small, which significantly reduces the cost. Second, the density of aluminum is lower than that of copper, which reduces the weight.
[0007] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings
[0008] The following further describes the specific embodiments of the utility model with reference to the drawings;
[0009] Figure 1 is a schematic diagram of an existing LED flexible circuit board;
[0010] Figure 2 It is a schematic cross-sectional view of an LED flexible circuit board using a dual-chip lamp bead. Specific embodiments
[0011] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.
[0012] In the description of the present invention, it should be understood that when it comes to orientation descriptions, such as the upper, lower, front, rear, left, right, etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.
[0013] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.
[0014] Referring to Figures 1 to 2 , an LED flexible circuit board of the present invention includes an aluminum substrate 10 and an insulating mask 11 covering the front surface of the aluminum substrate 10. A plurality of welding holes are formed in the insulating mask 11 to expose a part of the aluminum substrate 10. A copper layer 20 is electroplated in the welding holes to adsorb to the exposed part of the aluminum substrate 10. The copper layer 20 can be welded to the solder 30. The welding holes include lamp bead welding holes 111, resistor welding holes 112, and power supply welding holes 113. The lamp bead welding holes 111 and resistor welding holes 112 are respectively located between two groups of power supply welding holes 113. A circuit is printed on the aluminum substrate 10, and a bottom film 12 is provided on the back surface of the aluminum substrate 10. That is, only the copper layer 20 needs to be electroplated at the welding holes. The copper layer 20 can adsorb to the aluminum substrate 10, and the copper layer 20 is relatively easy to be tinned. Components such as lamp beads can be welded to the copper layer 20 with solder 30. First, the aluminum substrate 10 is used to replace the existing copper substrate, and only the copper layer 20 needs to be electroplated at several welding holes. The amount of copper used is very small, which significantly reduces the cost. Second, the density of aluminum is lower than that of copper, which reduces the weight.
[0015] The present invention also includes a lamp strip, which includes a soft lamp shell. The LED flexible circuit board is arranged in the soft lamp shell, saving costs and reducing the weight of the lamp strip.
[0016] This circuit board can be single-layer, double-layer or multi-layer.
[0017] Those skilled in the art can easily understand that, on the premise of no conflict, the above preferred modes can be freely combined and superimposed.
[0018] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present utility model.
Claims
1. An LED flexible circuit board, characterized in that, Comprising: An aluminum substrate (10) and an insulating mask (11) covering the front surface of the aluminum substrate (10). A plurality of welding holes are formed in the insulating mask (11) to expose a part of the aluminum substrate (10). A copper layer (20) is electroplated in the welding holes to adsorb to the exposed part of the aluminum substrate (10), and the copper layer (20) can be welded to solder (30).
2. The LED flexible circuit board according to claim 1, wherein: The welding holes include lamp bead welding holes (111), resistor welding holes (112), and power supply welding holes (113). The lamp bead welding holes (111) and the resistor welding holes (112) are respectively located between two groups of the power supply welding holes (113).
3. The LED flexible circuit board according to claim 1, wherein: Circuits are printed on the aluminum substrate (10).
4. The LED flexible circuit board according to claim 1, wherein: A bottom film (12) is provided on the back surface of the aluminum substrate (10).
5. A light strip, characterized in that, Comprising: A soft lamp shell, further comprising the LED flexible circuit board according to any one of claims 1 to 4, and the LED flexible circuit board is disposed in the soft lamp shell.