Surface-mounted LED lamp bead

Abstract

The invention discloses a patch type LED lamp bead, and belongs to the technical field of LED lamp beads, the patch type LED lamp bead comprises a conductive lamp holder, a lamp wick limiting mechanism and a lamp wick assembly, a mounting cavity is formed in the conductive lamp holder, and a conductive circular groove is formed in the bottom of the mounting cavity; the lampwick limiting mechanism comprises a mounting groove formed in the side wall of the mounting cavity, the mounting groove comprises an entering section and a limiting section communicated with the entering section, the lampwick assembly comprises a light-emitting part, a conductive pin inserted into the conductive circular groove is arranged at the lower end of the light-emitting part, and insulating plates are fixedly mounted on the upper side and the lower side of the light-emitting part correspondingly; by arranging the lamp wick limiting mechanism, the light-emitting part can be automatically limited, the safety problem caused by shaking of the light-emitting part in the using process is prevented, workers can be helped to conveniently and rapidly take out the light-emitting part from the interior of the mounting cavity, the work efficiency of overhaul and maintenance can be improved to a great extent, and the safety of the workers is improved. And the conductive pins can be effectively prevented from being broken in the conductive circular grooves.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lamp beads, and in particular to a surface mount type LED lamp bead. Background Art

[0002] The SMD LED lamp has pure, soft, and glare-free pearlescent color, and can be used for both decoration and lighting. It has the advantages of low heat generation and energy saving, and is mainly composed of three parts: the light-emitting part, the metal pin and the base.

[0003] In the prior art, the light-emitting component and the base of the SMD LED lamp bead are often fixed by snapping, which is not convenient for disassembly. When the light-emitting component needs to be inspected and replaced, the staff often use brute force to remove it, which not only makes the gap between the buckles larger, which has an adverse effect on future use, but also the disassembly process can easily cause the metal pins to be broken, thus causing unnecessary trouble. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when the light-emitting parts mentioned in the above background technology are inspected and replaced, the staff often use brute force to remove them. This will not only make the gaps between the buckles larger, which will have an adverse effect on future use, but also the disassembly process will easily cause the metal pins to be broken.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A SMD LED lamp bead comprises a conductive lamp holder, a wick limiting mechanism and a wick assembly, wherein a mounting cavity is provided on the conductive lamp holder, and a conductive circular groove is provided at the bottom of the mounting cavity; the wick limiting mechanism comprises a mounting groove provided on a side wall of the mounting cavity, and the mounting groove comprises an entry section and a limiting section connected to the entry section; the wick assembly comprises a light-emitting component, and a conductive pin inserted into the conductive circular groove is provided at the lower end of the light-emitting component, and insulating plates are fixedly installed on both upper and lower sides of the light-emitting component.

[0006] Preferably, the wick limiting mechanism also includes a lifting groove arranged on the lower side of the limiting section, a horizontal plate is arranged in the lifting groove, a lifting rod is slidably connected to the horizontal plate, the top of the lifting rod is connected to the lifting plate, a spring is sleeved on the lifting rod, and both ends of the spring are respectively connected to the lifting plate and the horizontal plate.

[0007] Preferably, the upper surface of the lifting plate is higher than the bottom wall of the entry section, and a guide surface is provided at one end of the lifting plate facing the entry section.

[0008] Preferably, a cover plate is installed on the conductive lamp holder, and a convex mirror is fixed on the cover plate.

[0009] Preferably, a pressing plate for pressing down the insulating plate is fixed on the cover plate.

[0010] Preferably, a heat dissipation component is installed on the conductive lamp holder, an inner groove is opened on the lower side of the conductive lamp holder, the heat dissipation component includes a heat dissipation plate fixed in the inner groove, the heat dissipation plate has four sides with protrusions, the four sides of the protrusions are in contact with the four sides of the inner groove, and a heat sink is fixed on the heat dissipation plate.

[0011] Preferably, a connecting cavity is formed between the protruding portion and the top wall of the inner groove, and a through hole connecting the mounting cavity and the connecting cavity is provided on the conductive lamp holder.

[0012] Preferably, a plurality of heat-conducting rods are fixed on the heat dissipation plate, and the plurality of heat-conducting rods are evenly distributed on both sides of the wick assembly, and the upper ends of the heat-conducting rods extend into the installation cavity through through holes.

[0013] Preferably, a transverse extension rod is fixed to the upper end of the heat-conducting rod, and an upper extension rod is fixed to the heat-conducting rod on one side.

[0014] Preferably, the diameter of the heat conducting rod is smaller than the diameter of the through hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a wick limiting mechanism, which can not only automatically limit the light-emitting component to prevent it from causing safety problems due to shaking during use, but also help workers to quickly and conveniently remove the light-emitting component from the inside of the installation cavity, which can greatly improve the work efficiency of inspection and maintenance, and effectively prevent the conductive pin from breaking inside the conductive circular groove; The convex mirror can disperse the light and make it evenly illuminated. The pressure plate makes the wick assembly drop down. The conductive pin is inserted into the conductive circular groove to energize the wick assembly. The pressure plate presses on the insulating plate to stabilize the wick assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the interior of the conductive lamp holder of the present invention.

[0019] Figure 3 It is a schematic diagram of the installation slot of the present invention.

[0020] Figure 4 It is a schematic diagram of the wick limiting mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the wick assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the heat dissipation component of the present invention.

[0023] Figure 7 It is a schematic diagram of the raised portion of the present invention.

[0024] Figure 8 It is a schematic diagram of a convex mirror of the present invention.

[0025] Explanation of the figure numbers: 1. Conductive lamp holder; 11. Mounting cavity; 12. Conductive circular groove; 2. Wick limiting mechanism; 21. Mounting groove; 211. Entry section; 212. Limiting section; 22. Lifting groove; 23. Horizontal plate; 24. Lifting rod; 25. Lifting plate; 251. Guide surface; 26. Spring; 3. Wick assembly; 31. Light-emitting part; 32. Conductive pin; 33. Insulating plate; 4. Cover plate; 5. Convex mirror; 6. Pressing plate; 7. Heat dissipation component; 71. Heat dissipation plate; 72. Raised portion; 73. Connecting cavity; 74. Through hole; 75. Heat-conducting rod; 76. Horizontal extension rod; 77. Upper extension rod; 78. Connecting groove; 79. Connecting hole. DETAILED DESCRIPTION

[0026] The present invention is described in further detail below with reference to the accompanying drawings.

[0027] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] See also Figure 1 - Figure 8 A SMD LED lamp bead comprises a conductive lamp holder 1, a wick limiting mechanism 2 and a wick assembly 3. The conductive lamp holder 1 is provided with an installation cavity 11, and a conductive circular groove 12 is provided at the bottom of the installation cavity 11; the wick limiting mechanism 2 comprises an installation groove 21 provided on the side wall of the installation cavity 11, and the installation groove 21 comprises an entry section 211 and a limiting section 212 connected to the entry section 211; the wick assembly 3 comprises a light-emitting component 31, and a conductive pin 32 inserted into the conductive circular groove 12 is arranged at the lower end of the light-emitting component 31. When the conductive pin 32 is inserted into the conductive circular groove 12, the light-emitting component 31 is powered on and lights up. Insulating plates 33 are fixedly installed on the upper and lower sides of the light-emitting component 31, and the insulating plate 33 slides from the entry section 211 to the limiting section 212 and is limited.

[0031] The wick limiting mechanism 2 also includes a lifting groove 22 arranged at the lower side of the limiting section 212, and the lifting groove 22 is connected to the limiting section 212. A horizontal plate 23 is arranged in the lifting groove 22, and the horizontal plate 23 is fixed to the conductive lamp holder 1. A lifting rod 24 is slidably connected to the horizontal plate 23, and a lifting plate 25 is connected to the top of the lifting rod 24. A spring 26 is sleeved on the lifting rod 24, and the two ends of the spring 26 are respectively connected to the lifting plate 25 and the horizontal plate 23. The upper surface of the lifting plate 25 is higher than the bottom wall of the entry section 211, and a guide surface 251 is provided at one end of the lifting plate 25 facing the entry section 211. When the insulating plate 33 enters the limiting section 212, the insulating plate 33 contacts the guide surface 251, so that the lifting plate 25 descends. When the insulating plate 33 contacts the end of the limiting section 212 and stops, the lifting plate 25 limits the insulating plate 33, so that the insulating plate 33 is stable and prevents the wick assembly 3 from falling. The wick limiting mechanism 2 is advantageously used to protect the conductive pin 32 and prevent the conductive pin 32 from breaking.

[0032] A cover plate 4 is installed on the conductive lamp holder 1, and a convex mirror 5 is fixed on the cover plate 4. The convex mirror 5 is fixed to the cover plate 4 by glue. The convex mirror 5 can diverge the light to make the light emission uniform.

[0033] A pressing plate 6 for pressing down the insulating plate 33 is fixed on the cover plate 4. When the cover plate 4 is connected to the conductive lamp holder 1, the pressing plate 6 presses on the insulating plate 33, causing the wick assembly 3 to descend, and finally the conductive pin 32 is inserted into the conductive circular groove 12, so that the wick assembly 3 can be energized.

[0034] A heat dissipation component 7 is installed on the conductive lamp holder 1. An inner groove is opened on the lower side of the conductive lamp holder 1. The heat dissipation component 7 includes a heat dissipation plate 71 fixed in the inner groove. The heat dissipation plate 71 is used for heat dissipation. The heat dissipation plate 71 has four sides with protrusions 72. The four sides of the protrusions 72 are in contact with the four sides of the inner groove. A heat sink is fixed on the heat dissipation plate 71 to achieve a better heat dissipation effect.

[0035] A connecting cavity 73 is formed between the raised portion 72 and the top wall of the inner groove. A through hole 74 connecting the mounting cavity 11 and the connecting cavity 73 is provided on the conductive lamp holder 1. Heat in the mounting cavity 11 enters the connecting cavity 73, thereby facilitating heat dissipation of the heat dissipation plate 71.

[0036] A plurality of heat-conducting rods 75 are fixed on the heat dissipation plate 71. The heat-conducting rods 75 are in even number and are evenly distributed on both sides of the wick assembly 3. The upper ends of the heat-conducting rods 75 extend into the mounting cavity 11 through the through holes 74. The heat-conducting rods 75 can absorb the radiant heat generated by the wick assembly 3 and transfer it to the heat dissipation plate 71.

[0037] A transverse extension rod 76 is fixed to the upper end of the heat-conducting rod 75, and an upper extension rod 77 is fixed to the heat-conducting rod 75 on one side. The upper extension rod 77 is located on the left side, and the mounting groove 21 is located on the right side. The wick assembly 3 slides from right to left when installed. The transverse extension rod 76 and the upper extension rod 77 have thickened extension parts on them to increase the heat absorption area.

[0038] Furthermore, the diameter of the heat-conducting rod 75 is smaller than the diameter of the through hole 74, so that the heat in the installation cavity 11 can directly enter the connecting cavity 73 through the through hole 74 to facilitate heat dissipation, and the heat-conducting rod 75, the horizontal rod 76 and the upper extension rod 77 are all provided with connecting grooves 78, and the heat-conducting rod 75, the horizontal rod 76 and the upper extension rod 77 are interconnected. The lower end of the heat-conducting rod 75 has a plurality of connecting holes 79, and the two ends of the connecting holes 79 connect the connecting cavity 73 and the connecting grooves 78, and the ends of the horizontal rod 76 and the upper extension rod 77 are connected to the installation cavity 11 through the connecting grooves 78. The cover plate 4, the convex mirror 5 and the heat dissipation plate 71 cooperate to prevent water from entering the installation cavity, keep the installation cavity 11 dry, and increase the service life of the wick assembly 3. When installing the wick assembly 3, the insulating plate 33 of the wick assembly 3 is placed into the entry section 211, and then moved toward the limit section 212. The insulating plate 33 first contacts the guide surface 251, causing the lifting plate 25 to descend. When the insulating plate 33 contacts the end of the limit section 212 and stops, the lifting plate 25 limits the insulating plate 33 through the spring 26, and then the cover plate 4 is installed on the conductive lamp holder 1 by screws. During the installation of the cover plate 4, the pressing plate 6 on the cover plate 4 causes the insulating plate 33 to descend, and the insulating plate 33 descends with the light-emitting part 31 and the conductive pin 32. Finally, the conductive pin 32 is inserted into the conductive circular groove 12, so that the wick assembly 3 is energized, and the insulating plate 33 descends, causing the lifting plate 25 to descend, and the lifting plate 25 descends with the lifting rod 24, and the spring 26 is compressed. At this time, the wick assembly 3 is more stable, and the heat generated by the wick assembly 3 is dissipated through the heat dissipation component 7. When the wick assembly 3 needs to be replaced, the cover plate 4 is removed, the pressing plate 6 is separated from the conductive lamp holder 1, and the lifting plate 25 rises under the action of the spring 26. The lifting plate 25 causes the wick assembly 3 to rise. At this time, the insulating plate 33 is located in the limiting section 212. The elastic force of the spring 26 makes the wick assembly 3 stable to prevent the wick assembly 3 from falling. Then the insulating plate 33 moves into the entry section 211, and then the wick assembly 3 is moved up, thereby completing the removal of the wick assembly 3.

[0039] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A SMD LED lamp bead, characterized in that: include: A conductive lamp holder (1) having a mounting cavity (11) formed thereon, wherein a conductive circular groove (12) is formed at the bottom of the mounting cavity (11); A wick limiting mechanism (2) comprises a mounting groove (21) formed on a side wall of the mounting cavity (11), wherein the mounting groove (21) comprises an entry section (211) and a limiting section (212) connected to the entry section (211). A wick assembly (3) comprises a light-emitting component (31), wherein a conductive pin (32) inserted into a conductive circular groove (12) is provided at the lower end of the light-emitting component (31), and insulating plates (33) are fixedly mounted on both upper and lower sides of the light-emitting component (31).

2. A SMD LED lamp bead according to claim 1, characterized in that: The wick limiting mechanism (2) further comprises a lifting groove (22) arranged at the lower side of the limiting section (212), a horizontal plate (23) being arranged in the lifting groove (22), a lifting rod (24) being slidably connected to the horizontal plate (23), a lifting plate (25) being connected to the top end of the lifting rod (24), a spring (26) being sleeved on the lifting rod (24), and two ends of the spring (26) being respectively connected to the lifting plate (25) and the horizontal plate (23).

3. A SMD LED lamp bead according to claim 2, characterized in that: The upper surface of the lifting plate (25) is higher than the bottom wall of the entry section (211), and a guide surface (251) is provided at one end of the lifting plate (25) facing the entry section (211).

4. The SMD LED lamp bead according to claim 1, characterized in that: A cover plate (4) is mounted on the conductive lamp holder (1), and a convex mirror (5) is fixed on the cover plate (4).

5. The SMD LED lamp bead according to claim 4, characterized in that: A pressing plate (6) for pressing down the insulating plate (33) is fixed on the cover plate (4).

6. The SMD LED lamp bead according to claim 1, characterized in that: A heat dissipation component (7) is mounted on the conductive lamp holder (1), an inner groove is provided on the lower side of the conductive lamp holder (1), the heat dissipation component (7) comprises a heat dissipation plate (71) fixed in the inner groove, the heat dissipation plate (71) has protrusions (72) on four sides, the four sides of the protrusions (72) are in contact with the four sides of the inner groove, and a heat sink is fixed on the heat dissipation plate (71).

7. The SMD LED lamp bead according to claim 6, characterized in that: A communication cavity (73) is formed between the protruding portion (72) and the top wall of the inner groove, and a through hole (74) connecting the mounting cavity (11) and the communication cavity (73) is provided on the conductive lamp holder (1).

8. The SMD LED lamp bead according to claim 7, characterized in that: A plurality of heat-conducting rods (75) are fixed on the heat dissipation plate (71), the plurality of heat-conducting rods (75) are evenly distributed on both sides of the wick assembly (3), and the upper ends of the heat-conducting rods (75) extend into the installation cavity (11) through the through holes (74).

9. The SMD LED lamp bead according to claim 8, characterized in that: A transverse extension rod (76) is fixed to the upper end of the heat-conducting rod (75), and an upper extension rod (77) is fixed to the heat-conducting rod (75) on one side.

10. The SMD LED lamp bead according to claim 8, characterized in that: The diameter of the heat-conducting rod (75) is smaller than the diameter of the through hole (74).

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