High-voltage lamp strip with low production cost

Abstract

The utility model discloses a high-voltage lamp strip with low production cost, which comprises a light source, a sleeve wrapped outside the light source and a wrapping layer wrapped outside the sleeve, the wrapping layer is provided with power lines, the light source comprises a plurality of lamp strings connected in parallel between the power lines, each lamp string comprises two leads and a plurality of LED chips welded between the two leads, and the LED chips are connected in parallel between the two leads. Glue is dripped on the LED chips to form a glue sealing layer, one wire between the two LED chips is cut off, so that the LED chips in one lamp string are connected in series, and the two ends of the lamp string are electrically connected with a power line through a connecting line; according to the utility model, the LED chips are welded on the double-strand wires and are connected in series to serve as the light source, so that compared with the scheme that the LED chips are welded on a PCB (Printed Circuit Board) to serve as the light source, the manufacturing cost is lower; meanwhile, the outer side of the light source is wrapped with the sleeve and the wrapping layer, so that the high-voltage lamp strip is isolated from the external environment, the protection effect is better, and use is safer.

Description

Technical Field

[0001] The utility model relates to a lighting device, in particular to a high-voltage light belt. Background Art

[0002] The current high-voltage light strips are LED chips soldered on flexible PCB boards, and the series and parallel connections are achieved by the wire lines on the flexible PCB boards, such as the high-voltage light strips disclosed in the patent documents with announcement numbers CN213712742U, CN203585918U and CN217273670U. Such light strips require flexible PCB boards. The production of flexible PCB boards requires multiple processes such as substrate processing, inner layer circuit production, inner layer board lamination, electroplating and etching. The production process is too complicated, resulting in the existing high-voltage light strips. The manufacturing cost is relatively expensive. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a high-voltage light strip with low production cost.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A high-voltage light strip with low production cost comprises a light source, a sleeve wrapped outside the light source and a wrapping layer wrapped outside the sleeve, wherein the wrapping layer is provided with a power line, the light source comprises a plurality of light strings connected in parallel between the power lines, the light string comprises two wires and a plurality of LED chips welded between the two wires, glue is dripped on the LED chips to form a sealing glue layer, one of the wires between the two LED chips is cut off, so that the LED chips in a light string form a series relationship, and the two ends of the light string are connected to the power line through a connecting line to form an electrical connection.

[0006] As a further improvement of the present invention, the wire is covered with an insulating skin, and the insulating skin is peeled off at the position where the LED chip needs to be welded to expose the wire.

[0007] As a further improvement of the present invention, the sleeve has an opening along the length direction. After the light string is placed into the sleeve from the opening, one end of the connecting wire is welded to one end of the light string, and the other end is welded to the power cord.

[0008] Furthermore, after a plurality of the light strings are placed in the sleeve and the connecting wires are welded, they are placed in an extrusion die together with the power cord, and the wrapping layer is formed outside the sleeve by an extrusion process.

[0009] Furthermore, one end of the high-voltage light strip is provided with a male plug, and the other end is provided with a female plug.

[0010] Furthermore, the rated operating voltage of the LED chip is V LED , the rated voltage of the power supply is V 电源 , the number of LED chips in a light string is N, then the following relationship is satisfied:

[0011] (V 电源 / V LED )*80%≤N≤(V 电源 / V LED )*120%;

[0012] Wherein, N is rounded to an integer.

[0013] The beneficial effects of the utility model are as follows: the utility model adopts the solution of welding the LED chip in series on a double-strand wire as a light source. Compared with the solution of welding the LED chip on a PCB board as a light source, the manufacturing cost of the utility model is lower; at the same time, a sleeve and a wrapping layer are coated on the outside of the light source to isolate the high-voltage light strip from the external environment, thereby achieving better protection effect and safer use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a side view of the utility model.

[0016] Figure 2 It is a circuit diagram of the utility model.

[0017] Figure 3 It is a structural diagram of a male plug and a female plug. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0020] Reference Figures 1 to 3A high-voltage light strip with low production cost comprises a light source 1, a sleeve 2 wrapped outside the light source 1 and a wrapping layer 3 wrapped outside the sleeve 2, the sleeve 2 and the wrapping layer 3 are made of flexible light-transmitting materials, which can be made of common polyurethane, PVC or silicone materials, the wrapping layer 3 is provided with a power line 6, the light source 1 comprises a plurality of light strings 4 connected in parallel between the power lines 6, the light string 4 comprises two wires 41 and a plurality of LED chips 42 welded between the two wires 41, glue is dripped on the LED chips 42 to form a sealing layer, one of the wires between the two LED chips 42 is cut off, so that the LED chips 42 in a light string 4 form a series relationship, and the two ends of the light string 4 are connected to the power line 6 through a connecting line 5. The source line 6 is connected to form an electrical connection; the adjacent LED chips are connected in series by disconnecting the wires. This structure can share a production line with the low-voltage DC light strip in which the LED chips are connected in parallel, further reducing the production cost of the high-voltage light strip. After the light source is produced, only one of the two wires connected to one end of the LED chip is disconnected, and the other end is disconnected. The parallel LED chips can be changed into series. This embodiment uses the LED chips welded in series on double-strand wires as the light source. Compared with the solution of welding LED chips on a PCB board as the light source, the manufacturing cost is lower. At the same time, a sleeve and a wrapping layer are coated on the outside of the light source to isolate the high-voltage light strip from the external environment, thereby achieving better protection and safer use.

[0021] The wire 41 is covered with an insulating skin, and the insulating skin is peeled off at a location where the LED chip 42 needs to be soldered to expose the wire 41 .

[0022] The sleeve 2 has an opening 21 along the length direction. After the light string 4 is placed in the sleeve 2 through the opening 21, one end of the connecting wire 5 is welded to one end of the light string 4, and the other end is welded to the power cord 6. After a number of light strings 4 are placed in the sleeve 2 and the connecting wires 5 are welded, they are placed in an extrusion die together with the power cord 6, and the wrapping layer 3 is formed outside the sleeve 2 by an extrusion process. The power cord is placed in the die together for extrusion to form the wrapping layer, which can prevent the power cords from contacting each other and causing a short circuit, making the high-voltage light strip safer to use.

[0023] One end of the high-voltage light strip is provided with a male plug 7, and the other end is provided with a female plug 8. The outer wall of the male plug is provided with an external thread, and the inner side of the female plug is provided with an insertion cavity, and the side wall of the insertion cavity is provided with an internal thread corresponding to the external thread. When connecting the high-voltage light strip, the male plug is inserted into the female plug so that the external thread and the internal thread are engaged with each other; when a long high-voltage light strip is required, multiple high-voltage light strips can be connected end to end, and the male plug of one high-voltage light strip is inserted into the female plug of another high-voltage light strip, so that the power lines in the two high-voltage light strips are connected to supply power to the light source.

[0024] The rated operating voltage of the LED chip 42 is V LED , the rated voltage of the power supply is V 电源 , the number of LED chips 42 in a light string 4 is N, then the following relationship is satisfied:

[0025] (V 电源 / V LED )*80%≤N≤(V 电源 / V LED )*120%; where N is rounded to an integer.

[0026] The power supply voltage can be the common 220V mains electricity, or a higher voltage such as 120V, or other higher voltage values. Corresponding to different power supply voltages, only the number of LED chips set in the light source needs to be adjusted accordingly, that is, according to the rated voltage of the LED chip and the working power supply voltage, the number of LED chips in series is calculated to avoid excessive voltage applied to both ends of the LED chip, which may cause the LED chip to burn out.

[0027] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-voltage light strip with low production cost, comprising a light source (1), a sleeve (2) wrapped around the light source (1), and a wrapping layer (3) wrapped around the sleeve (2), wherein the wrapping layer (3) is provided with a power cord (6), characterized in that The light source (1) comprises a plurality of light strings (4) connected in parallel between the power lines (6), the light strings (4) comprising two wires (41) and a plurality of LED chips (42) welded between the two wires (41), glue is dripped on the LED chips (42) to form a sealing glue layer, one of the wires between two LED chips (42) is cut, so that the LED chips (42) in a light string (4) form a series relationship, and the two ends of the light string (4) are connected to the power line (6) via a connecting line (5) to form an electrical connection.

2. The low-cost high-voltage light strip according to claim 1, characterized in that The wire (41) is covered with an insulating skin, and the insulating skin is peeled off at a location where the LED chip (42) needs to be welded to expose the wire (41).

3. The low-cost high-voltage light strip according to claim 1, characterized in that The sleeve (2) has an opening (21) along the length direction; after the light string (4) is placed into the sleeve (2) through the opening (21), one end of the connecting wire (5) is welded to one end of the light string (4), and the other end is welded to the power line (6).

4. The low-cost high-voltage light strip according to claim 1, characterized in that After a plurality of the light strings (4) are placed in the sleeve (2) and the connecting wires (5) are welded, they are placed in an extrusion die together with the power wire (6), and the wrapping layer (3) is formed outside the sleeve (2) using an extrusion process.

5. The low-cost high-voltage light strip according to claim 1, characterized in that One end of the high-voltage light strip is provided with a male plug (7), and the other end is provided with a female plug (8).

6. The low-cost high-voltage light strip according to claim 1, characterized in that The rated operating voltage of the LED chip (42) is V LED , the rated voltage of the power supply is V 电源 , the number of LED chips (42) in a light string (4) is N, then the following relationship is satisfied: (V 电源 / V LED )*80%≤N≤(V 电源 / V LED )*120%; where N is rounded to an integer.

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