Three-wire double-control lamp string

Abstract

The utility model discloses a three-wire double-control lamp string, which comprises a plurality of first lamp holders, a plurality of second lamp holders and a three-parallel lead, the plurality of first lamp holders and the plurality of second lamp holders are connected in parallel through the three-parallel lead, and the three leads are respectively a first lead, a second lead and a third lead; each of the first lamp holder and the second lamp holder comprises a lamp cap, a lamp cover and a conductive copper terminal, the lamp caps and the lamp covers are clamped, and three parallel wires are clamped between the lamp caps and the lamp covers. According to the three-wire double-control lamp string, double-loop control is achieved after the three-wire double-control lamp string is externally connected with the controller, the bulbs can flicker at intervals, and the functionality and the ornamental value of the outdoor lamp string are remarkably improved.

Description

A type of three-wire dual-control light string Technical Field

[0001] This utility model relates to the field of light string design, specifically to a three-wire dual-control light string. Background Technology

[0002] In everyday outdoor decoration and lighting scenarios, traditional outdoor string lights are widely used in festivals, garden decorations, and commercial store exteriors due to their ease of installation and low cost. These string lights generally employ a dual-wire structure design. One of their core components, the lamp holder, has two copper plugs, each precisely corresponding to one of the two wires. One wire acts as the live wire, responsible for transmitting current, while the other is the neutral wire, forming a complete current loop to power the bulbs in the string. Due to its circuit design, this type of lamp holder can only achieve single-wire control. In actual use, all bulbs can only operate synchronously, either flashing together or turning off together, resulting in a poor user experience. Summary of the Invention

[0003] The purpose of this invention is to provide a three-wire dual-control light string to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A three-wire dual-control light string includes several first lamp holders, several second lamp holders and a three-parallel wire. The several first lamp holders and several second lamp holders are connected in parallel through the three-parallel wire, which is a first wire, a second wire and a third wire, respectively.

[0006] Both the first lamp holder and the second lamp holder include a lamp head, a lamp cover, and a conductive copper terminal. The lamp head is snapped onto the lamp cover, and three wires are snapped between the lamp head and the lamp cover. The conductive copper terminal is connected to the second wire. The lamp head of the first lamp holder is provided with a first conductive plate, on which a first tip is formed. The first tip is connected to the first wire. The lamp head of the second lamp holder is provided with a second conductive plate, on which a second tip is formed. The second tip is connected to the third wire.

[0007] The first wire and the second wire form a first loop control, and the second wire and the third wire form a second loop control.

[0008] In some embodiments, the lamp cover has three upper wire-holding slots arranged side by side, and the lamp head has three lower wire-holding slots arranged side by side. After the lamp head and the lamp cover are snapped together, a wire-passing hole is formed for snapping three wires together.

[0009] In some embodiments, a connecting buckle is formed on the lower part of the lamp cover, and a connecting hole corresponding to the lamp cover is provided on the lamp head. The connecting buckle engages with the connecting hole to assemble the lamp head and the lamp cover into one piece.

[0010] In some embodiments, the upper part of the lamp holder is provided with an insulating partition, the middle of the insulating partition is provided with a first snap-fit ​​groove, and the side of the insulating partition is provided with a second snap-fit ​​groove.

[0011] The conductive copper terminal is engaged with the first snap-fit ​​groove and embedded in the inner top of the insulating partition;

[0012] The first conductive sheet or the second conductive sheet is embedded in the second snap-fit ​​groove and extends to the inner side of the lamp holder.

[0013] In some embodiments, the terminal body of the conductive copper terminal is "L"-shaped, and the conductive tip is formed above the terminal body. After the conductive copper terminal is engaged with the first snap-fit ​​groove, the conductive tip is located above the partition and penetrates into the second wire to conduct electricity.

[0014] In some embodiments, the conductive bodies of the first conductive sheet and the second conductive sheet are micro-arc shaped, and the first tip formed on the first conductive sheet and the second tip formed on the second conductive sheet are respectively formed on the upper left and right sides of the corresponding conductive bodies, so that the first tip penetrates into the first wire to conduct electricity, and the second tip penetrates into the third wire to conduct electricity.

[0015] In some embodiments, the upper side of the conductive body is provided with multiple contact protrusions.

[0016] In some embodiments, the inner side of the lamp holder is provided with threads for connection to the bulb.

[0017] In some embodiments, the lamp cover has a hook on its side.

[0018] The beneficial effects are as follows: The three-wire dual-control light string designed in this application can achieve dual-circuit control after being connected to an external controller, which can make the bulbs flash at intervals, significantly improving the functionality and aesthetics of the outdoor light string. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a perspective view of the three-wire double-control light string of this utility model;

[0021] Figure 2 is a schematic diagram of the connection between the three-wire double-control light string and the conductive sheet of this utility model;

[0022] Figure 3 is an exploded view of the three-wire dual-control light string of this utility model;

[0023] Figure 4 is a front view of the three-wire double-control light string of this utility model;

[0024] Figure 5 is a cross-sectional view AA of Figure 4;

[0025] Figure 6 is a BB cross-sectional view of Figure 4;

[0026] Figure 7 is a schematic diagram showing the position and structure of the lamp cover, conductive copper terminal, and conductive sheet of the three-wire double-control light string of this utility model;

[0027] Figure 8 is a three-dimensional structural diagram of the lamp cover of the three-wire double-control light string of this utility model;

[0028] Figure 9 is a three-dimensional structural diagram of the lamp head of the three-wire double-control light string of this utility model;

[0029] Figure 10 is a front view of the lamp holder and conductive copper terminal of the three-wire double-control lamp string of this utility model.

[0030] Figure 11 is a CC sectional view of Figure 10;

[0031] Figure 12 is a top view of Figure 10;

[0032] Figure 13 is a bottom view of Figure 10;

[0033] Figure 14 is a structural diagram of the conductive sheet of the three-wire double-control light string of this utility model;

[0034] Figure 15 is a structural diagram of the conductive copper terminals of the three-wire double-control light string of this utility model;

[0035] Figure 16 is an enlarged view of the structure of part D in Figure 2;

[0036] Figure 17 is an enlarged view of the structure of part E in Figure 3.

[0037] The annotations in the attached figures are explained as follows:

[0038] 1. First lamp holder; 101. Conductive copper terminal; 101A. Conductive tip; 102. First conductive sheet; 102A. First tip; 102B. Contact protrusion; 103. Lamp cover; 103A. Handle; 103B. Upper wire-locking groove; 103C. Connecting buckle; 104. Lamp head; 104A. Lower wire-locking groove; 104B. Connecting clip hole; 104C. Insulating partition; 104D. First locking groove; 104E. Second locking groove; 2. Second lamp holder; 201. Second conductive sheet; 201A. Second tip; 3. First wire; 4. Second wire; 5. Third wire. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] Referring to Figures 1-17, this utility model provides a three-wire dual-control light string, including several first lamp holders 1, several second lamp holders 2, and a three-parallel wire. The several first lamp holders 1 and several second lamp holders 2 are connected in parallel by the three-parallel wire, which consists of a first wire 3, a second wire 4, and a third wire 5. The several first lamp holders 1 and several second lamp holders 2 can be arranged alternately or in any combination.

[0041] Referring to Figures 2 and 3, both the first lamp holder 1 and the second lamp holder 2 include a lamp head 104, a lamp cover 103, and a conductive copper terminal 101. The lamp head 104 is snapped into the lamp cover 103, and three wires are snapped between the lamp head 104 and the lamp cover 103. The conductive copper terminal 101 is connected to the second wire 4. The lamp head 104 of the first lamp holder 1 is provided with a first conductive sheet 102, on which a first tip 102A is formed. The first tip 102A is connected to the first wire 3 and has a triangular tip structure that penetrates into the first wire 3 to conduct electricity. The lamp head 104 of the second lamp holder 2 is provided with a second conductive sheet 201, on which a second tip 201A is formed. The second tip 201A is connected to the third wire 5 and has a triangular tip structure that penetrates into the third wire 5 to conduct electricity. The difference between the first conductive sheet 102 and the second conductive sheet 201 is that the first tip 102A and the second tip 201A are located at different positions on the top of the conductive body, respectively on the left and right sides of the top of the conductive body, and the second wire 4 is a common end wire.

[0042] Through the above scheme, the first wire 3 and the second wire 4 form a first loop control, and the second wire 4 and the third wire 5 form a second loop control. That is, the first wire 3 and the second wire 4 form a first loop control for external controller to control the flashing of several first lamp holders 1, and the second wire 4 and the third wire 5 form a second loop control for external controller to control the flashing of several second lamp holders 2. This can realize three-wire dual-control light string, and achieve dual-loop control after connecting an external controller. It can make the bulbs flash intermittently, which significantly improves the functionality and aesthetics of outdoor light string.

[0043] Referring to Figures 3-6, in some embodiments, the lamp cover 103 has three upper wire-holding grooves 103B arranged in parallel, and the lamp head 104 has three lower wire-holding grooves 104A arranged in parallel. After the lamp head 104 is engaged with the lamp cover 103, it forms a through hole for holding three parallel wires, which can fix the three parallel wires.

[0044] Referring to Figures 5-9, in some embodiments, to facilitate the connection between the lamp cover 103 and the lamp holder 104, a connecting buckle 103C is formed on the lower part of the lamp cover 103, and a connecting hole 104B corresponding to the lamp cover 103 is provided on the lamp holder 104. The connecting buckle 103C engages with the connecting hole 104B to assemble the lamp holder 104 and the lamp cover 103 into one unit. A hook 103A is provided on the side of the lamp cover 103 to facilitate installation and removal.

[0045] Referring to Figures 9-13, in some embodiments, the upper part of the lamp holder 104 is provided with an insulating partition 104C, the middle of the insulating partition 104C is provided with a first snap-fit ​​groove 104D, and the side of the insulating partition 104C is provided with a second snap-fit ​​groove 104E; the conductive copper terminal 101 snaps into the first snap-fit ​​groove 104D and is embedded in the inner top of the insulating partition 104C; the first conductive piece 102 or the second conductive piece 201 is embedded in the second snap-fit ​​groove 104E and extends to the inner side of the lamp holder 104, the portion of the conductive copper terminal 101 embedded below the insulating partition 104C contacts the top of the lamp holder for conductivity, and the portion of the first conductive piece 102 or the second conductive piece 201 embedded in the second snap-fit ​​groove 104E and extending to the inner side of the lamp holder 104 contacts the side of the lamp holder for conductivity.

[0046] To facilitate conductivity, in some embodiments, the main body of the conductive copper terminal 101 is "L"-shaped, and the conductive tip 101A is formed above the main body. After the conductive copper terminal 101 is engaged with the first snap-fit ​​groove 104D, the conductive tip 101A is located above the partition and penetrates into the second wire 4 to conduct electricity.

[0047] Referring to Figure 2, in some embodiments, the conductive bodies of the first conductive sheet 102 and the second conductive sheet 201 are micro-arc shaped. The first tip 102A formed on the first conductive sheet 102 and the second tip 201A formed on the second conductive sheet 201 are respectively formed on the upper left and right sides of the corresponding conductive bodies, so that the first tip 102A inserts into the first wire 3 to conduct electricity, and the second tip 201A inserts into the third wire 5 to conduct electricity.

[0048] In some embodiments, the upper side of the conductive body is provided with multiple contact protrusions 102B, which can make the conductivity between the body and the bulb more stable. The inner side of the lamp holder 104 is provided with threads for connecting to the bulb, facilitating threaded connection with the bulb.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A three-wire dual-control light string, characterized in that: The device includes several first lamp holders, several second lamp holders, and a three-parallel wire. The first and second lamp holders are connected in parallel via the three-parallel wire, which consists of a first wire, a second wire, and a third wire. Each of the first and second lamp holders includes a lamp head, a lamp cover, and conductive copper terminals. The lamp head is snapped into the lamp cover, and the three-parallel wire is snapped between the lamp head and the lamp cover. The conductive copper terminals are connected to the second wire. The lamp head of the first lamp holder has a first conductive plate with a first pointed portion formed thereon, which is connected to the first wire. The lamp head of the second lamp holder has a second conductive plate with a second pointed portion formed thereon, which is connected to the third wire. The first and second wires form a first loop control, and the second and third wires form a second loop control.

2. The three-wire dual-control light string according to claim 1, characterized in that: The lamp cover has three upper wire-holding slots arranged in parallel, and the lamp head has three lower wire-holding slots arranged in parallel. After the lamp head and the lamp cover are snapped together, a wire-passing hole is formed for snapping together three parallel wires.

3. The three-wire dual-control light string according to claim 2, characterized in that: A connecting buckle is formed on the lower part of the lamp cover, and a connecting hole corresponding to the lamp cover is provided on the lamp head. The connecting buckle engages with the connecting hole to assemble the lamp head and the lamp cover into one piece.

4. The three-wire dual-control light string according to claim 1, characterized in that: An insulating partition is provided on the upper part of the lamp holder. A first snap-fit ​​groove is provided in the middle of the insulating partition, and a second snap-fit ​​groove is provided on the side of the insulating partition. The conductive copper terminal snaps into the first snap-fit ​​groove and is embedded in the inner top of the insulating partition. The first conductive sheet or the second conductive sheet is embedded in the second snap-fit ​​groove and extends to the inner side of the lamp holder.

5. A three-wire dual-control light string according to claim 4, characterized in that: The conductive copper terminal has an "L" shaped main body and a conductive tip formed on top of the main body. After the conductive copper terminal is engaged with the first snap-fit ​​groove, the conductive tip is positioned above the partition and penetrates the second wire to conduct electricity.

6. A three-wire dual-control light string according to claim 4, characterized in that: The conductive bodies of the first conductive sheet and the second conductive sheet are micro-arc shaped. The first tip formed on the first conductive sheet and the second tip formed on the second conductive sheet are respectively formed on the upper left and right sides of the corresponding conductive body, so that the first tip penetrates into the first wire to conduct electricity, and the second tip penetrates into the third wire to conduct electricity.

7. A three-wire dual-control light string according to claim 6, characterized in that: The upper side of the conductive body is provided with multiple contact protrusions.

8. A three-wire dual-control light string according to claim 1, characterized in that: The inner side of the lamp holder is provided with threads for connecting to the bulb.

9. A three-wire dual-control light string according to claim 1, characterized in that: The lamp cover has a hook on its side.

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