SMD lamp bead convenient to connect

Abstract

The utility model relates to the technical field of lamp beads, and discloses an SMD (Surface Mounted Device) lamp bead convenient to connect, which comprises a base, a cover plate is arranged at the upper end of the base, mounting cavities are formed in the two sides of the interior of the base, and limiting grooves are formed in the bottom surface and the top surface of the opposite ends of the mounting cavities; limiting blocks are slidably connected to the two sides of the inner walls of the limiting grooves in the upper end and the lower end correspondingly, and supporting rods are fixedly connected to the outer walls of the adjacent ends of the limiting blocks correspondingly. When the SMD lamp bead is used, the first rotating rod and the second rotating rod at the two ends are pressed to drive the SMD lamp bead to rotate and retract in the supporting rod and drive the reset spring to be compressed at the same time, so that the SMD lamp bead is separated from the teeth at the two ends, and then the limiting spring is matched to push the sliding block to slide in the sliding groove to continuously get close to the mounting column; the abutting block and the clamping hole are clamped so that the clamping column can be limited, then the cover plate and the base can be connected, and welding or connecting difficulty possibly caused by dispensing is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp pearl technical field especially, it is convenient to connect SMD lamp pearl. BACKGROUND

[0002] It is known that SMD lamp pearl is a kind of surface mount type LED light emitting device, adopts the miniaturization encapsulation design of leadless, is directly mounted on PCB surface by solder pad, SMD lamp pearl has small size, high integration, excellent heat dissipation performance and other characteristics, supports the automatic mounting process, significantly improves production efficiency.The light emitting principle is that current excitation semiconductor chip produces photon, realizes white light or color light output by fluorescent powder conversion, is widely used in LED lighting, display technology and automobile electronics etc., especially suitable for the demand of high-density, lightweight modern electronic equipment.

[0003] However, the traditional SMD lamp pearl is usually encapsulated with lens part on chip by dispensing, if the glue amount is not controlled properly in dispensing process, glue may overflow to the solder pad area, pollute the metal surface, cause the wettability to drop when welding, form false welding or cold welding, cause poor connection effect, therefore, it is urgent to improve technology. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a kind of SMD lamp pearl convenient to connect, when the SMD lamp pearl is used, by pressing two end rotating rod one and rotating rod two, it is driven to rotate in support rod and retract at the same time, and reset spring is compressed, so that it is separated from two end teeth, in turn cooperate with limiting spring and push slider in sliding groove to slide and constantly approach mounting column, by the resistance block and the clamping hole clamping to limit the clamping column, to connect the cover plate and base in turn, by loosening rotating rod one and rotating rod two, reset spring releases force and drives its two ends and tooth to re-clamp, so that it can cooperate with limiting spring to carry out secondary limiting to support rod, avoid the welding or connection difficulty that dispensing can cause.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of SMD lamp bead of convenient connection, including base, the upper end of the base is provided with cover plate, both sides in the base interior are opened with installation cavity, the bottom surface and top surface of opposite end of the installation cavity are opened with limiting slot, the inner wall of the limiting slot of upper end and lower end both sides is slidably connected with limiting block, the outer wall of the adjacent end of the limiting block is fixedly connected with support rod, the inner wall of the adjacent side of the support rod is rotatably connected with rotating rod one in middle part, the both sides of the support rod close to rotating rod one are rotatably connected with rotating rod two, the outer wall of the adjacent end of the rotating rod one and rotating rod two is fixedly connected with return spring, the bottom surface and top surface of the inner wall of the installation cavity close to limiting slot are respectively fixedly connected with multiple teeth, multiple rotating rod one and rotating rod two are respectively with tooth resistance.

[0007] By the above technical scheme, compared with the prior art, the SMD lamp bead is used, the mechanism in the support rod is driven by rotating rod one and rotating rod two, the return spring is compressed and separated from the teeth, and the sliding block is pushed close to the mounting column by the limiting spring, the connection between the cover plate and the base is realized by the limiting block and the clamping hole, and the connection reliability is ensured.

[0008] Further, the front end and the rear end of the lower surface of the base are provided with solder pads;

[0009] By the above technical scheme, the solder pads are convenient to install in the required position.

[0010] Further, the middle part of the upper surface of the base is provided with an LED light-emitting chip;

[0011] By the above technical scheme, the LED light-emitting chip provides a light source.

[0012] Further, the four corners of the upper surface of the base are provided with positioning holes, and the four corners of the lower surface of the cover plate are fixedly connected with positioning columns, and the positioning columns are in resistance with the positioning holes;

[0013] By the above technical scheme, the positioning columns are in resistance with the positioning holes to position the cover plate.

[0014] Further, the middle part of the upper surface of the cover plate is fixedly connected with a lens;

[0015] By the above technical scheme, the lens protects the internal chip.

[0016] Furthermore, the outer walls of adjacent sides of the support rod are fixedly connected with abutments, the front and rear ends of the upper surface of the base are provided with snap-fit ​​grooves, the lower ends of the snap-fit ​​grooves are connected to the mounting cavity, the front and rear ends of the lower surface of the cover plate are fixedly connected with mounting columns, the mounting columns abut against the snap-fit ​​grooves, and the outer walls of the mounting columns are provided with limit holes on both sides, and the abutments are engaged with the limit holes.

[0017] The above technical solution facilitates the limiting of the installation column by engaging the stop block with the limiting hole.

[0018] Furthermore, sliding grooves are provided on both sides of the outer wall of the opposite side of the mounting cavity, and the first rotating rod and the second rotating rod are slidably connected inside the sliding grooves respectively;

[0019] The above technical solution allows for the slidable connection of the support rod within the slide groove by rotating rod one and rotating rod two.

[0020] Furthermore, limit springs are fixedly connected to both sides of the inner wall of the mounting cavity, and the adjacent side of each limit spring is fixedly connected to the outer wall of the support rod.

[0021] The above technical solution allows the limiting spring to provide additional support by applying force to the support rod.

[0022] This utility model has the following beneficial effects:

[0023] 1. This utility model proposes an SMD LED bead that is easy to connect. Compared with an existing SMD LED bead, when this SMD LED bead is used, pressing the first and second rotating rods at both ends causes it to rotate and retract within the support rod, while simultaneously compressing the return spring. This causes it to disengage from the teeth at both ends. Subsequently, in conjunction with the limiting spring, the slider slides within the groove and continuously approaches the mounting post. The abutment engages with the locking hole, thereby limiting the locking post and allowing the cover plate to connect with the base. Then, by releasing the first and second rotating rods, the return spring releases its force, causing the two ends to re-engage with the teeth. This, in conjunction with the limiting spring, provides secondary limiting of the support rod, avoiding welding or connection difficulties that may be caused by adhesive application. Attached Figure Description

[0024] Figure 1 An isometric view of an SMD LED bead that is easy to connect according to this utility model;

[0025] Figure 2 An exploded view of an SMD LED bead that is easy to connect, as proposed in this utility model;

[0026] Figure 3 A cross-sectional view of an SMD LED bead that is easy to connect according to this utility model;

[0027] Figure 4 For Figure 3 Enlarged view at A

[0028] Figure 5 For the utility model provides a kind of structure diagram of rotating rod in SMD lamp pearl of convenient connection.

[0029] Legend:

[0030] 1, base;11, solder pad;12, LED light chip;13, positioning hole;14, cover plate;15, positioning column;16, lens;17, mounting column;18, limit hole;2, mounting cavity;21, limit slot;22, limit block;23, support rod;24, rotating rod one;25, rotating rod two;26, return spring;27, gear;28, limit spring;29, sliding slot;210, abutment;211, clamping groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] With reference to Figures 1-5 , the utility model provides an embodiment: a kind of SMD lamp pearl of convenient connection, including base 1, the upper end of base 1 is provided with cover plate 14, the both sides in base 1 inside are all set up mounting cavity 2, limit slot 21 is set up in the bottom surface and top surface of the opposite end of mounting cavity 2, the both sides of the inner wall of upper end and lower end limit slot 21 are all slidably connected with limit block 22, the outer wall of the adjacent end of limit block 22 is all fixedly connected with support rod 23, the inner wall of the adjacent side of support rod 23 middle part is rotatably connected with rotating rod one 24, the both sides of support rod 23 close to rotating rod one 24 are all rotatably connected with rotating rod two 25, the outer wall of the adjacent end of rotating rod one 24 and rotating rod two 25 is all fixedly connected with return spring 26, the bottom surface and top surface of the inner wall of mounting cavity 2 close to limit slot 21 are all respectively fixedly connected with multiple gear teeth 27, multiple rotating rod one 24 and rotating rod two 25 are all respectively with gear teeth 27.

[0033] Compared with the prior art, the SMD lamp bead is used, the mechanism in the supporting rod 23 is driven by rotating the first rotating rod 24 and the second rotating rod 25 to compress the reset spring 26 and make the reset spring 26 disengage from the teeth 27, and the sliding block is pushed close to the mounting column 17 by cooperating with the limiting spring 28, finally, the limiting is realized by the abutting block 210 and the clamping hole, the connection of the cover plate 14 and the base 1 is completed, after the first rotating rod is loosened, the reset spring 26 is released and clamped again, and the second limiting is realized by cooperating with the limiting spring 28, the defect that the connecting point is possibly shielded by the dispensing packaging and the reliability of welding or connection is influenced is avoided, a more stable and reliable connection mode is provided through the mechanical structure, and the reliability and stability of the connection are ensured.

[0034] The front end and the rear end of the lower surface of the base 1 are provided with the welding pad 11;

[0035] The welding pad 11 is convenient for installation to a required position.

[0036] The middle part of the upper surface of the base 1 is provided with the LED light-emitting chip 12;

[0037] The LED light-emitting chip 12 is convenient for providing a light source.

[0038] The four corners of the upper surface of the base 1 are provided with the positioning hole 13, the four corners of the lower surface of the cover plate 14 are fixedly connected with the positioning column 15, and the positioning column 15 abuts against the positioning hole 13;

[0039] The positioning column 15 abuts against the positioning hole 13, so that the cover plate 14 is positioned.

[0040] The middle part of the upper surface of the cover plate 14 is fixedly connected with the lens 16;

[0041] The lens 16 is convenient for protecting the internal chip.

[0042] The outer walls of the adjacent sides of the supporting rod 23 are fixedly connected with the abutting block 210, the front end and the rear end of the middle part of the upper surface of the base 1 are provided with the clamping groove 211, the lower end of the clamping groove 211 is in through connection with the mounting cavity 2, the front end and the rear end of the middle part of the lower surface of the cover plate 14 are fixedly connected with the mounting column 17, the mounting column 17 abuts against the clamping groove 211, the two sides of the outer wall of the mounting column 17 are provided with the limiting hole 18, and the abutting block 210 is clamped and matched with the limiting hole 18;

[0043] The abutting block 210 is clamped and matched with the limiting hole 18, so that the mounting column 17 is limited.

[0044] The two sides of the outer wall of the side, which is opposite to the mounting cavity 2, are provided with the sliding groove 29, and the first rotating rod 24 and the second rotating rod 25 are slidably connected in the sliding groove 29;

[0045] The rotating rod one 24 and the rotating rod two 25 are connected with the sliding groove 29 respectively, so that the support rod 23 is limited.

[0046] The limiting spring 28 is fixedly connected to the inner wall of the mounting cavity 2, and the outer wall of the support rod 23 is fixedly connected to the limiting spring 28.

[0047] The limiting spring 28 provides an additional supporting effect for the support rod 23.

[0048] Working principle: when used, the positioning column 15 is abutted with the positioning hole 13 to position the cover plate 14, the rotating rod one 24 and the rotating rod two 25 are pressed to drive the support rod 23 to rotate and retract, and the reset spring 26 is compressed, so that the support rod 23 is separated from the tooth 27, the limiting spring 28 pushes the sliding block in the sliding groove 29 to continuously approach the mounting column 17, the abutting block 210 is clamped with the clamping hole to limit the clamping column, and the cover plate 14 is connected with the base 1, the rotating rod one 24 and the rotating rod two 25 are loosened, the reset spring 26 releases the force to drive the two ends of the support rod 23 to be re-clamped with the tooth 27, so that the support rod 23 is secondarily limited by the limiting spring 28, and the welding pad 11 is welded to the required position.

[0049] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A SMD lamp bead convenient to connect, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a cover plate (14), both sides of the inside of the base (1) are provided with a mounting cavity (2), the bottom surface and the top surface of the opposite end of the mounting cavity (2) are provided with a limiting groove (21), the inner wall of the limiting groove (21) of the upper end and the lower end is slidably connected with a limiting block (22), the outer wall of the adjacent end of the limiting block (22) is fixedly connected with a supporting rod (23), the middle part of the inner wall of the adjacent side of the supporting rod (23) is rotatably connected with a rotating rod one (24), the two sides of the supporting rod (23) close to the rotating rod one (24) are rotatably connected with a rotating rod two (25), the outer wall of the adjacent end of the rotating rod one (24) and the rotating rod two (25) is fixedly connected with a return spring (26), the bottom surface and the top surface of the inner wall of the mounting cavity (2) close to the limiting groove (21) is respectively fixedly connected with a plurality of teeth (27), and the rotating rod one (24) and the rotating rod two (25) are respectively abutted with the teeth (27).

2. The SMD lamp bead of easy connection according to claim 1, characterized in that: The front end and the rear end of the lower surface of the base (1) are provided with a solder pad (11).

3. The SMD lamp bead of easy connection according to claim 1, characterized in that: The middle part of the upper surface of the base (1) is provided with an LED light emitting chip (12).

4. The SMD lamp bead of easy connection according to claim 1, characterized in that: The four corners of the upper surface of the base (1) are provided with a positioning hole (13), and the four corners of the lower surface of the cover plate (14) are fixedly connected with a positioning column (15).

5. The SMD lamp bead of easy connection according to claim 1, characterized in that: The middle part of the upper surface of the cover plate (14) is fixedly connected with a lens (16).

6. The SMD lamp bead of easy connection according to claim 1, characterized in that: The outer wall of the adjacent side of the supporting rod (23) is fixedly connected with a resisting block (210), the front end and the rear end of the middle part of the upper surface of the base (1) are provided with a clamping groove (211), the lower end of the clamping groove (211) is connected with the mounting cavity (2), the front end and the rear end of the middle part of the lower surface of the cover plate (14) are fixedly connected with a mounting column (17), the mounting column (17) is abutted with the clamping groove (211), the two sides of the outer wall of the mounting column (17) are provided with a limiting hole (18), and the resisting block (210) is clamped and matched with the limiting hole (18).

7. The SMD lamp bead of easy connection according to claim 1, characterized in that: The two sides of the outer wall of the opposite side of the mounting cavity (2) are provided with a sliding groove (29), and the rotating rod one (24) and the rotating rod two (25) are slidably connected in the sliding groove (29).

8. The SMD lamp bead of easy connection according to claim 1, characterized in that: The inner wall of the mounting cavity (2) is fixedly connected with a limiting spring (28), and the outer wall of the supporting rod (23) is fixedly connected with the limiting spring (28) on the adjacent side.

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