IP Library › Granted Patent US 12,352,414
Granted Patent B1
US 12,352,414 · App. 19/013,192 · Granted Jul 8, 2025

Waterproof outdoor lamp and assembling method thereof

Inventor: Guohua Yan (Guangxi, CN)
F21V21/002F21V17/12F21V17/16F21V19/0045F21V23/06
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Quick Facts
Patent No.
US 12,352,414
App. No.
19/013,192
Granted
Jul 8, 2025
Kind
B1
Abstract

A waterproof outdoor lamp easy to assemble and an assembling method thereof are provided. The waterproof outdoor lamp easy to assemble includes a power cord, a lamp holder, an inner plug, a light source, two upper rivets, two lower rivets, and a light bulb. The lamp holder includes a cord connecting portion and an inner plug accommodating portion, the cord connecting portion and the inner plug accommodating portion are integrally injection-molded on the power cord. An inner plug limiting protrusion is disposed on an upper end surface of the inner plug, an inner plug limiting groove is defined on the inner threads of the inner plug accommodating portion, the inner plug limiting protrusion is clamped in the inner plug limiting groove. Compared with conventional outdoor lamps, the waterproof outdoor lamp easy to assemble has better waterproof performance and is also simpler in structure.

Claims (29)

1. A waterproof outdoor lamp, comprising:

a power cord;

a lamp holder;

an inner plug;

a light source;

two upper rivets;

two lower rivets; and

a light bulb;

wherein the power cord comprises a positive lead and a negative lead, each of the positive lead and the negative lead comprises a wire and an outer housing, each outer housing encases a corresponding wire;

the lamp holder comprises a cord connecting portion and an inner plug accommodating portion, the power cord passes through the cord connecting portion, and the inner plug is accommodated in the inner plug accommodating portion;

the two upper rivets are fixed to the cord connecting portion, and tips of the two upper rivets respectively pierce a corresponding outer housing to be in contact with a corresponding wire;

the two lower rivets and the light source are fixed to the inner plug;

the light source comprises a light source pin, the light source pin comprises a light source positive electrode pin and a light source negative electrode pin, the two lower rivets are respectively in contact with the light source positive electrode pin and the light source negative electrode pin;

the inner plug is fixed to an interior of the light bulb, the light bulb is connected to the inner plug accommodating portion; and

the two upper rivets and the two lower rivets are aligned in a vertical direction, after the waterproof outdoor lamp is assembled, two rivet heads of the two upper rivets are respectively in contact with two rivet heads of the two lower rivets.

2. The waterproof outdoor lamp according to claim 1 , wherein two upper rivet positioning holes are defined on an inner side of the cord connecting portion, and the two rivets are respectively disposed in the two upper rivet positioning holes.

3. The waterproof outdoor lamp according to claim 1 , wherein the cord connecting portion and the inner plug accommodating portion are integrally injection-molded on the power cord.

4. The waterproof outdoor lamp according to claim 1 , wherein the inner plug accommodating portion comprises inner threads, and external threads are correspondingly disposed on an exterior of the light bulb.

5. The waterproof outdoor lamp according to claim 4 , wherein an inner plug limiting protrusion is disposed on an upper end surface of the inner plug, an inner plug limiting groove is defined on the inner threads of the inner plug accommodating portion, the inner plug limiting protrusion is clamped in the inner plug limiting groove.

6. The waterproof outdoor lamp according to claim 1 , wherein a light source pin inserting groove is defined on an upper end of the inner plug, the light source pin is inserted and connected into the light source pin inserting groove.

7. The waterproof outdoor lamp according to claim 6 , wherein two lower rivet positioning holes are defined on a side surface of the light source pin inserting groove, the two lower rivets are disposed in the two lower rivet positioning holes.

8. The waterproof outdoor lamp according to claim 6 , wherein two semicircular grooves are defined side by side at a side edge of the light source pin inserting groove, and the two semicircular grooves are configured to accommodate the two lower rivets.

9. The waterproof outdoor lamp according to claim 1 , wherein the inner plug comprises at least one snap-fit protrusion at a lower portion thereof, at least one snap-fit groove is defined in the light bulb, and the at least one snap-fit protrusion is clamped to the at least one snap-fit groove.

10. An assembling method, for assembling the waterproof outdoor lamp according to claim 1 , comprising:

S1: forming the lamp holder, wherein the lamp holder is directly injection-overmolded with polyvinyl chloride (PVC) onto the power cord by an injection molding machine;

S2: pressing the two upper rivets into the lamp holder, wherein two upper rivet positioning holes are preset on the lamp holder, the two upper rivets are pressed into the lamp holder respectively through the two upper rivet positioning holes, the outer housing of each of the positive lead and the negative lead is pierced by the two upper rivets to achieve a conductive function;

S3: assembling the light bulb, wherein a light source pin of the light source is inserted in to a light source pin inserting groove of the inner plug for fixing, the two lower rivets are respectively inserted into two lower rivet positioning holes of the inner plug for fixing, then the inner plug fixed with the light source and the two lower rivets are clamped and fixed into the light bulb;

S4: connecting the light bulb after assembling to the lamp holder, wherein the light bulb after assembling is screw-fitted into the lamp holder, the two rivet heads of the two upper rivets are respectively in full contact with the two rivet heads of the two lower rivets for power conduction.

11. The assembling method according to claim 10 , wherein in the S4, clamping an inner plug limiting protrusion into an inner plug limiting groove before connecting the light bulb after assembling to the lamp holder.

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Cited By (3)
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