Novel COB lamp strip

Abstract

The utility model discloses a novel COB lamp strip which comprises a substrate, a plurality of LED chips are connected to the front face of the substrate, packaging colloid capable of covering the LED chips is arranged on the substrate, an installation assembly is arranged on the outer side of the substrate and the outer side of the packaging colloid, copper sheets are arranged between the installation assembly and the back face of the substrate, and the copper sheets are arranged at the front end and the rear end of the substrate. The installation assembly comprises a connecting shell connected to the outer side of the packaging colloid in a sleeving mode and a connecting piece which is arranged on the back side of the substrate and can be matched with the connecting shell to clamp the substrate and the packaging colloid, and the two sides of the connecting shell, the two sides of the substrate and the two sides of the connecting piece are provided with clamping strips which can be clamped at the same time. A containing space is formed between the back side of the connecting piece and the two clamping strips, a cooling fin is arranged in the containing space, and a plurality of positioning grooves matched with the copper contacts are formed in the cooling fin. The utility model provides the novel COB lamp strip which is stable to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lamp strip, especially a novel COB lamp strip. BACKGROUND

[0002] COB means that LED chips are directly packaged on a PCB board. The LED chips are mostly flip chips, which are linear die bonding on the PCB board, and then a layer of packaging glue mixed with fluorescent powder is directly dripped on the chip surface. The appearance is very similar to a piece of la mian sticking on the PCB board. The light emitted by the chip passes through refraction, reflection and interaction with the fluorescent powder in the packaging glue, and the glue uniformly emits light of different colors and color temperatures.

[0003] The existing COB lamp strip is mainly bonded at a suitable position through a bonding layer. After the bonding layer receives heat or long-time use, it is easy to fall off, so that the stability of the COB lamp strip is poor.

[0004] The utility model discloses just based on the above shortage and produces. UTILITY MODEL CONTENT

[0005] The utility model discloses a novel COB lamp strip which overcomes the problems of the prior art and has stable use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme:

[0007] A novel COB lamp strip comprises a substrate, a plurality of LED chips connected to the front surface of the substrate, a packaging glue capable of covering the LED chips arranged on the substrate, a mounting assembly arranged on the outer side of the substrate and the packaging glue, a copper sheet arranged between the mounting assembly and the back surface of the substrate, the copper sheet arranged at the front and back ends of the substrate and connected to the substrate, a plurality of copper contacts arranged on the copper sheet, a connecting shell sleeved on the outer side of the packaging glue and a connecting piece arranged on the back side of the substrate and capable of cooperating with the connecting shell to clamp the substrate and the packaging glue, a clamping strip arranged on the two sides of the connecting shell, the substrate and the connecting piece and capable of clamping the three simultaneously, an accommodation space formed between the back side of the connecting piece and the two clamping strips, a heat sink arranged in the accommodation space, and a plurality of positioning grooves capable of matching the plurality of copper contacts arranged on the heat sink.

[0008] A first abutting portion is arranged at the middle part of the outer side of the clamping strip, and a second abutting portion is arranged at the lower part of the outer side of the clamping strip.

[0009] A mounting seat is further arranged between the connecting shell and the two clamping strips, the mounting seat comprises a seat body arranged horizontally, and the two sides of the seat body are provided with outwardly extending connecting arms, so that the connecting arms can abut against each other with the first abutting portion.

[0010] The positioning clamping groove is formed between the clamping strip and the mounting seat, and the clamping part capable of being clamped into the positioning clamping groove is further arranged on the seat body, and the clamping part is arranged on the inner side of the connecting arm, so that the gap between the clamping part and the connecting arm can position the upper part of the clamping strip.

[0011] The lamp cover is arranged on the outer side of the connecting shell, and the third abutting part capable of being engaged with the second abutting part is arranged on the inner side of the end of the lamp cover.

[0012] The first protrusion protruding upward is arranged on the connecting shell, the second protrusion protruding downward is arranged on the connecting sheet, and the clamping groove capable of clamping the first protrusion, the second protrusion and the end of the substrate is arranged on the clamping strip.

[0013] The first inclined surface and the second inclined surface are arranged on the clamping groove, the first inclined surface and the second inclined surface are oppositely arranged, and the extension lines of the first inclined surface and the second inclined surface can intersect.

[0014] The first protrusion is triangular, the third inclined surface capable of abutting against the first inclined surface is arranged on the first protrusion, and the fourth inclined surface capable of abutting against the second inclined surface is arranged on the second protrusion.

[0015] The copper sheet comprises the first copper layer and the second copper layer arranged in an up-down interval, the bending part capable of connecting the first copper layer and the second copper layer is arranged between the first copper layer and the second copper layer, the clamping groove capable of clamping the connecting sheet is formed between the first copper layer and the second copper layer, and the copper contact is arranged on the top surface of the second copper layer.

[0016] The heat dissipation sheet is provided with the giving-up groove capable of giving up for the copper sheet, and the recessed groove recessed downward is arranged on the top surface of the heat dissipation sheet.

[0017] Compared with the prior art, the utility model has the advantages that: in use, the substrate and the encapsulating body are fixedly connected through the connecting shell and the connecting sheet, then the connecting shell, the substrate and the connecting sheet are clamped and fixed through the clamping strip, so that the connecting shell, the substrate and the connecting sheet are more stably connected, when the connecting shell, the substrate and the connecting sheet are connected and locked, the encapsulating body and the substrate are also fixedly connected, the encapsulating body and the substrate are protected due to the arrangement of the connecting shell, the safety is better, the copper sheet and the copper contact are arranged, the other novel COB lamp strip is connected, the connection is more convenient, the positioning groove is arranged, the copper column is inserted, the positioning and the welding positioning of the copper contact are facilitated, and the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structural schematic view of the novel COB lamp strip of the utility model;

[0019] Fig. 2 It is one of sectional views of the novel COB lamp strip of the utility model;

[0020] Fig. 3 It is the second structure schematic view of the novel COB lamp strip of the utility model;

[0021] Fig. 4 It is the second sectional view of the novel COB lamp strip of the utility model.

[0022] Label: substrate 1, LED chip 2, encapsulation glue body 3, mounting assembly 4, connecting shell 41, first protruding block 411, seat body 461, clamping portion 4611, connecting arm 462, third inclined surface 4111, connecting sheet 42, second protruding block 421, fourth inclined surface 4211, clamping strip 43, first abutment portion 431, second abutment portion 432, clamping groove 433, first inclined surface 4331, second inclined surface 4332, containing space 44, radiating fin 45, positioning groove 451, accommodation groove 452, recess 453, positioning clamping groove 47, copper sheet 5, copper contact 51, first copper layer 52, second copper layer 53, bending portion 54, clamping groove 55, lamp cover 6, third abutment portion 61. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in connection with the embodiments as follows:

[0024] The specific implementation of the utility model will be further described in detail in connection with the drawings and embodiments. The following embodiments are used to explain the utility model, but not to limit the scope of the utility model.

[0025] As Figs. 1 to 4 shown, a novel COB lamp strip, comprising: substrate 1, the front of substrate 1 is connected with several LED chips 2, the substrate 1 is provided with the encapsulation glue body 3 capable of covering LED chip 2, the outer side of substrate 1 and encapsulation glue body 3 is provided with mounting assembly 4, the copper sheet 5 is arranged between the back of mounting assembly 4 and substrate 1, the copper sheet 5 is arranged at the front and rear ends of substrate 1, and the copper sheet 5 is connected with substrate 1, a plurality of copper contacts 51 are arranged on the copper sheet 5, the mounting assembly 4 includes the connecting shell 41 that is sleeved on the outer side of encapsulation glue body 3 and the connecting sheet 42 that is arranged on the back side of substrate 1 and is connected with the connecting shell 41 and can be clamped with substrate 1 and encapsulation glue body 3, the two sides of connecting shell 41, substrate 1 and connecting sheet 42 are provided with the clamping strip 43 capable of clamping the three simultaneously, the accommodating space 44 is formed between the back side of connecting sheet 42 and the two clamping strips 43, the radiating fin 45 is arranged in the accommodating space 44, and the plurality of positioning grooves 451 capable of adapting to the plurality of copper contacts 51 are arranged on the radiating fin 45.

[0026] The utility model discloses a fixing structure of COB lamp strip, including the base plate 1, the encapsulation colloid 3 and the copper sheet 5, the base plate 1 is fixedly connected with the encapsulation colloid 3, and the copper sheet 5 is fixedly connected with the encapsulation colloid 3.

[0027] The outer side middle part of the clamping strip 43 is provided with a first abutting portion 431, and the outer side lower part of the clamping strip 43 is provided with a second abutting portion 432.

[0028] The connecting shell 41 and the two clamping strips 43 are further provided with a mounting seat 46, the mounting seat 46 includes a seat body 461 arranged transversely, and the two sides of the seat body 461 are provided with outwardly extending connecting arms 462, so that the connecting arms 462 can abut against each other with the first abutting portion 431.

[0029] The clamping strip 43 and the mounting seat 46 form a positioning clamping groove 47, the seat body 461 is further provided with a clamping portion 4611 capable of being clamped into the positioning clamping groove 47, and the clamping portion 4611 is arranged on the inner side of the connecting arm 462, so that the gap between the clamping portion 4611 and the connecting arm 462 can position the upper part of the clamping strip 43.

[0030] Further including a lamp cover 6, the lamp cover 6 is arranged on the outer side of the connecting shell 41, and the end inner side of the lamp cover 6 is provided with a third abutting portion 61 capable of clamping with the second abutting portion 432.

[0031] The connecting shell 41 is provided with a first protrusion 411 protruding upward, the connecting piece 42 is provided with a second protrusion 421 protruding downward, and the clamping strip 43 is provided with a clamping groove 433 capable of clamping the first protrusion 411 and the second protrusion 421 and the end of the substrate 1. The first protrusion 411, the second protrusion 421 and the clamping groove 433 are arranged to facilitate quick assembly connection, safe and fast, and more stable after installation. The design of the protrusion and the clamping groove can save space and make the structure more compact.

[0032] The clamping groove 433 is provided with a first inclined surface 4331 and a second inclined surface 4332, which are oppositely arranged and the extension lines of which can intersect.

[0033] The first inclined surface 4331 and the second inclined surface 4332 can make the side edges of the connecting shell 41, the substrate 1 and the connecting piece 42 more easily clamped into the groove, reducing the alignment and adjustment time during assembly, reducing assembly errors and facilitating installation. When the first inclined surface 4331 and the second inclined surface 4332 are close to each other, the opening between the ends thereof is reduced, so that self-locking can be formed to prevent the connecting shell 41, the substrate 1 and the connecting piece 42 from being accidentally disconnected when subjected to external force, and the safety is better.

[0034] The first protrusion 411 is triangular, and the first protrusion 411 is provided with a third inclined surface 4111 capable of abutting against the first inclined surface 4331, and the second protrusion 421 is provided with a fourth inclined surface 4211 capable of abutting against the second inclined surface 4332. Through the inclined surface design of the third inclined surface 4111 and the fourth inclined surface 4211 on the first protrusion 411 and the second protrusion 421, the stability of the whole structure can be improved, and the third inclined surface 4111 and the fourth inclined surface 4211 can improve the contact between the protrusion and the corresponding inclined surface, reduce friction and improve contact efficiency.

[0035] The copper sheet 5 includes a first copper layer 52 and a second copper layer 53 arranged in an upper and lower interval, a bending portion 54 capable of connecting the first copper layer 52 and the second copper layer 53 is arranged between the first copper layer 52 and the second copper layer 53, a clamping groove 55 capable of clamping on the connecting piece 42 is formed between the first copper layer 52 and the second copper layer 53, and the copper contact 51 is arranged on the top surface of the second copper layer 53. The arrangement of the clamping groove 55 facilitates positioning of the copper sheet 5 and the connecting piece 42, making the connection more compact.

[0036] The heat dissipation fin 45 is provided with a giving-up slot 452 for giving up space for the copper sheet 5, and the top surface of the heat dissipation fin 45 is provided with a downwardly recessed groove 453. The giving-up slot 452 is convenient for positioning the copper sheet 5, and the groove 453 is convenient for connecting the novel COB lamp strip with another novel COB lamp strip, and the groove 453 can place the connected welding plate or other circuit board, which is inserted into the positioning slot 451 through the copper column, and the connection is convenient.

[0037] The above has made a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A new COB light strip, characterized in that, The utility model provides a kind of LED lamp, including: Substrate (1), the front surface of the substrate (1) is connected with several LED chips (2), the substrate (1) is provided with the encapsulation colloid (3) capable of covering LED chip (2), the outside of the substrate (1) and encapsulation colloid (3) is provided with mounting assembly (4), the copper sheet (5) is arranged between mounting assembly (4) and the back of substrate (1), the copper sheet (5) is arranged at the front and back of substrate (1), and the copper sheet (5) is connected with substrate (1), the copper sheet (5) is provided with multiple copper contacts (51), the mounting assembly (4) includes the connecting shell (41) of sleeve connection in the outside of encapsulation colloid (3) and the connecting piece (42) of being provided with the back of substrate (1) and being capable of being matched with connecting shell (41) and the clamping of substrate (1) and encapsulation colloid (3), the two sides of connecting shell (41), substrate (1) and connecting piece (42) are provided with the clamping strip (43) capable of being clamped simultaneously, the back of connecting piece (42) and two clamping strips (43) form accommodating space (44) between, the heat dissipation fin (45) is arranged in accommodating space (44), the heat dissipation fin (45) is provided with multiple positioning grooves (451) capable of being matched with multiple copper contacts (51), the copper sheet (5) includes first copper layer (52) and second copper layer (53) arranged at interval, the first copper layer (52) and second copper layer (53) are provided with the bending part (54) capable of connecting two, the first copper layer (52) and second copper layer (53) form the clamping groove (55) capable of being clamped on connecting piece (42) between, the copper contact (51) is arranged on the top surface of second copper layer (53).

2. The novel COB light strip according to claim 1, characterized in that, The middle part of the outside of the clamping strip (43) is provided with the first abutment portion (431), and the lower part of the outside of the clamping strip (43) is provided with the second abutment portion (432).

3. The novel COB light strip according to claim 2, characterized in that, The connecting shell (41) and the two clamping strips (43) are further provided with the mounting seat (46), the mounting seat (46) includes the seat body (461) arranged transversely, the two sides of the seat body (461) are provided with the connecting arm (462) extending outward, so that the connecting arm (462) can abut against each other with the first abutment portion (431).

4. The novel COB lamp strip according to claim 3, characterized in that, The clamping strip (43) and the mounting seat (46) form the positioning clamping groove (47), and the seat body (461) is further provided with the clamping portion (4611) capable of being clamped into the positioning clamping groove (47), the clamping portion (4611) is arranged on the inner side of the connecting arm (462), so that the gap between the clamping portion (4611) and the connecting arm (462) can position the upper part of the clamping strip (43).

5. The novel COB lamp strip according to claim 2, characterized in that, Further including a lamp cover (6), the lamp cover (6) is arranged on the outside of the connecting shell (41), and the inner side of the end portion of the lamp cover (6) is provided with the third abutment portion (61) capable of being clamped with the second abutment portion (432).

6. The novel COB light strip according to claim 1, characterized in that, The connecting shell (41) is provided with a first protrusion (411) protruding upward, the connecting sheet (42) is provided with a second protrusion (421) protruding downward, and the clamping strip (43) is provided with a clamping groove (433) capable of clamping the first protrusion (411), the second protrusion (421) and the end of the base plate (1).

7. The novel COB light strip according to claim 6, characterized in that, The clamping groove (433) is provided with a first inclined surface (4331) and a second inclined surface (4332), the first inclined surface (4331) and the second inclined surface (4332) are oppositely arranged, and the extension lines of the two can intersect.

8. The novel COB lamp strip according to claim 7, characterized in that, The first protrusion (411) is triangular, the first protrusion (411) is provided with a third inclined surface (4111) capable of abutting against the first inclined surface (4331), and the second protrusion (421) is provided with a fourth inclined surface (4211) capable of abutting against the second inclined surface (4332).

9. The novel COB light strip according to claim 1, characterized in that, The heat dissipation fin (45) is provided with a giving-up groove (452) capable of giving up space for the copper sheet (5), and the top surface of the heat dissipation fin (45) is provided with a downwardly recessed groove (453).

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