CN107345631B

CN107345631B - LED lamp strip subassembly and LED display module assembly

Info

Publication number: CN107345631B
Application number: CN201710734845.7A
Authority: CN
Inventors: 王智勇; 罗雪松
Original assignee: Hefei Huike Jinyang Technology Co Ltd
Current assignee: Hefei Huike Jinyang Technology Co Ltd
Priority date: 2017-08-24
Filing date: 2017-08-24
Publication date: 2023-05-16
Anticipated expiration: 2037-08-24
Also published as: CN107345631A

Abstract

The invention belongs to the technical field of LED lamp strip manufacturing, and particularly relates to an LED lamp strip assembly and an LED display module. Therefore, the end part of the shading sleeve covers the assembly hole, so that light rays emitted by the LED lamp strip can not leak to the outside from the assembly gap between the assembly hole and the protruding part, the tightness of the LED lamp strip assembly is remarkably improved, and the light leakage prevention performance and the quality sense of the LED display module are further remarkably improved.

Description

LED lamp strip subassembly and LED display module assembly

Technical Field

The invention belongs to the technical field of manufacturing of LED lamp strips, and particularly relates to an LED lamp strip assembly and an LED display module.

Background

At present, an LED (light emitting diode) light emitting part is mostly applied in the form of an LED light bar, and the LED light bar is assembled with a back plate and is connected with an external power supply to realize the light emission of an LED light source. In practical application, a power supply socket needs to be arranged on the LED light bar, and an opening is formed in the back plate so that the power supply socket extends out of the back plate and is communicated with an external power supply to supply power to the LED light bar.

However, a certain assembly gap is inevitably formed at the contact position between the power supply socket and the back plate, so that light emitted by the LED light bar leaks from the assembly gap, and the quality of the product is reduced. In order to solve the above problems, the gap between the power supply socket and the back plate needs to be covered by the adhesive tape to prevent light leakage and prevent the power supply socket from falling off the LED light bar, which further causes the problems of complex manufacturing process, increased manufacturing cost and the like of the LED light emitting device.

Disclosure of Invention

The invention aims to provide an LED lamp bar assembly and an LED display module, and aims to solve the technical problems that in the prior art, the joint of an LED lamp bar and an external power supply is easy to leak light and the processing cost of leak protection light is high.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a LED lamp strip subassembly, includes backplate and LED lamp strip, the LED lamp strip inlays to be located in the backplate, set up the pilot hole on the backplate, be equipped with on the LED lamp strip extend to the outer bulge of pilot hole, just be equipped with the conducting strip on the bulge, LED lamp strip subassembly still includes the light-proof sleeve, the light-proof sleeve cup joint in the periphery of bulge, be equipped with on the light-proof sleeve with conducting pin of conducting strip electric connection, just the tip of light-proof sleeve covers the pilot hole is in order to avoid the pilot hole with the fit clearance between the bulge exposes.

Further, the shading sleeve is provided with a containing cavity, and the protruding part stretches into and is embedded in the containing cavity.

Further, two opposite outer side surfaces of the protruding portion are recessed inwards to form positioning grooves, two opposite inner side surfaces of the accommodating cavity are provided with positioning protruding blocks in an outward extending mode, and each positioning protruding block is connected with each positioning groove in a matching mode.

Further, two first deformation holes are formed in the other inner side surface, adjacent to the inner side surface provided with the positioning protruding block, of the accommodating cavity, and the two first deformation holes are distributed at intervals and are respectively close to two side edges of the shading sleeve.

Further, two second deformation holes are formed in the accommodating cavity and are opposite to the inner side surface formed with the two first deformation holes, and the two second deformation holes are formed at intervals and correspond to the two first deformation holes one by one.

Further, the shading sleeve is provided with a communication hole communicated with the accommodating cavity, and the conductive needle is embedded in the communication hole and extends into the accommodating cavity.

Further, the communication holes are formed in a plurality, and each communication hole is formed at an included angle between the outer top surface and the outer side surface of the shading sleeve at intervals.

Further, the inner top surface of the accommodating cavity extends downwards to form a limiting block, and the lower end of the limiting block is abutted to the upper end of the protruding portion.

Further, the shading sleeve is an elastic shading sleeve, and each positioning lug and the limiting block are integrally formed with the shading sleeve.

The invention has the beneficial effects that: the LED lamp bar assembly comprises the back plate and the LED lamp bar, wherein the LED lamp bar is embedded in the back plate, the back plate is provided with the assembly holes, the LED lamp bar is provided with the convex parts extending out of the assembly holes, the LED lamp bar assembly comprises the shading sleeve sleeved on the periphery of the convex parts, the end parts of the shading sleeve cover the assembly holes, the assembly gaps between the assembly holes and the convex parts are prevented from being exposed, the light emitted by the LED lamp bar is prevented from leaking out from the assembly gaps between the assembly holes and the convex parts, the tightness of the LED lamp bar assembly is remarkably improved, and the convex parts are further communicated with an external power supply through the conductive sheets by arranging the conductive sheets electrically connected with the conductive needles on the shading sleeve, so that the LED lamp bar assembly is supplied with power.

The LED display module comprises the LED light bar assembly.

According to the LED display module, the light shielding sleeve can cover the protruding part of the light bar and cover the assembly gap between the protruding part and the assembly hole of the back plate, so that light emitted from the LED light bar cannot leak outside from the assembly gap, the overall light leakage prevention performance of the LED display module is remarkably improved, the overall quality of the LED display module is better, and the quality sense is stronger.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an LED light bar assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an LED light bar, a light shielding sleeve and a conductive needle of the LED light bar assembly according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a protrusion portion of an LED light bar, a back plate, and a conductive pin of the LED light bar assembly according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a protrusion portion and a back plate of an LED light bar of the LED light bar assembly according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a shade sleeve of an LED light bar assembly according to an embodiment of the present invention;

fig. 6 is another schematic structural diagram of a shade sleeve of an LED light bar assembly according to an embodiment of the present invention.

Wherein, each reference sign in the figure:

10-backboard 11-assembly hole 20-LED lamp strip

21-projection 22-positioning groove 23-conductive sheet

30-light shielding sleeve 31-first deformation hole 32-positioning projection

33-second deformation hole 34-accommodation chamber 35-communication hole

36-stopper 40-conductive needle 41-contact end

331-arc grooves 351-support mesas.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to fig. 1 to 6 are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 3, the embodiment of the invention provides an LED light bar 20 assembly, which comprises a back plate 10 and an LED light bar 20, wherein the LED light bar 20 is embedded in the back plate 10, the back plate 10 is provided with an assembly hole 11, the LED light bar 20 is provided with a protruding part 21 extending out of the assembly hole 11, the protruding part 21 is provided with a conductive sheet 23, the LED light bar 20 assembly further comprises a light shielding sleeve 30, the light shielding sleeve 30 is sheathed on the periphery of the protruding part 21, the light shielding sleeve 30 is provided with a conductive needle 40 electrically connected with the conductive sheet 23, and the end part of the light shielding sleeve 30 covers the assembly hole 11 to avoid the exposure of an assembly gap between the assembly hole 11 and the protruding part 21.

Specifically, the conductive pin 40 is in a vertical strip shape, the upper end of the conductive pin 40 extends outwards to form a contact end 41, meanwhile, the contact end 41 is vertical to the conductive pin body and extends out of the shading sleeve 30 to be connected with an external power supply, the lower end of the conductive pin 40 is in contact with the conductive sheet 23 of the protruding portion 21, so that the external power supply is electrically conducted with the conductive sheet 23 of the protruding portion 21 through the conductive pin 40, and then the power supply to the LED light bar 20 is realized.

Further, by setting the conductive pin 40 to be a vertical bar, and making the upper end of the conductive pin 40 extend outwards to form the contact end 41, and simultaneously the contact end 41 is kept perpendicular to the conductive pin 40 body, the structure of the conductive pin 40 can be more compact, so that the conductive pin can be better adapted to the light shielding sleeve 30, and further, the structure is simplified and the conductive sheet 23 is electrically communicated with the external power supply protruding portion 21.

According to the LED light bar assembly provided by the embodiment of the invention, the tail end of the LED light bar 20 is provided with the protruding part 21 extending upwards to the outside of the assembly hole 11, and the LED light bar assembly comprises the shading sleeve 30 sleeved on the periphery of the protruding part 21, so that the structural complexity of the power supply end of the LED light bar 20 is remarkably reduced, and the protruding part 21 extends to the outside of the assembly hole 11 because the protruding part 21 is arranged on the LED light bar 20, the size of the protruding part 21 is smaller, so that the assembly gap formed between the protruding part 21 and the assembly hole 11 is remarkably reduced, and the assembly gap between the power supply end and the opening of the back plate 10 caused by directly arranging the power supply end on the LED light bar 20 is avoided from being overlarge by sleeving the shading sleeve 30 on the protruding part 21, so that light leakage is serious. The end of the light shielding sleeve 30 covers the assembly hole 11, so that the exposure of the assembly gap between the assembly hole 11 and the protruding portion 21 is avoided, and the leakage of the light emitted by the LED light bar 20 to the outside from the assembly gap between the assembly hole 11 and the protruding portion 21 is avoided, so that the tightness of the LED light bar assembly is remarkably improved, and the conductive sheet 23 electrically connected with the conductive needle 40 is arranged on the light shielding sleeve 30, so that the protruding portion 21 is communicated with an external power supply through the conductive sheet 23, and the LED light bar assembly is powered.

In this embodiment, as shown in fig. 1, 3 and 5, the light shielding sleeve 30 is provided with a accommodating cavity 34, and the protruding portion 21 extends into and is embedded in the accommodating cavity 34. Specifically, a mounting hole is formed at the bottom of the accommodating chamber 34, the protruding portion 21 passes through the mounting hole and enters the accommodating chamber 34, and the inner side wall of the accommodating chamber 34 is attached to the outer side wall of the protruding portion 21.

Further, the accommodating chamber 34 is formed at one side of the light shielding sleeve 30, and an inner sidewall of the accommodating chamber 34 is kept parallel to an outer sidewall of the light shielding sleeve 30. Preferably, the bottom end profile of the light shielding sleeve 30 is the same as the upper end profile of the assembly hole 11 and the bottom end profile area of the light shielding sleeve 30 is larger than the upper end profile area of the assembly hole 11. Since the assembly hole 11 is formed on the side of the back plate 10, the assembly gap formed by the assembly hole 11 and the protruding portion 21 is biased toward the end facing away from the side of the back plate 10, and the accommodating cavity 34 is formed on one side of the light-shielding sleeve 30, when the protruding portion 21 is inserted into the accommodating cavity 34, the bottom end of the light-shielding sleeve 30 can correspond to the position of the assembly gap formed by the assembly hole 11 and the protruding portion 21 and completely cover the assembly gap, so that the light emitted by the LED light bar 20 is further ensured not to leak from the assembly gap.

Furthermore, by making the inner side wall of the accommodating cavity 34 and the outer side wall of the protruding portion 21 fit, it is ensured that the protruding portion 21 will not shake left and right due to a gap between the inner side wall of the accommodating cavity 34 and the outer side wall of the protruding portion 21 when inserted into the accommodating cavity 34, so that the occurrence of poor contact between the conductive sheet 23 of the protruding portion 21 and the conductive needle 40 extending into the accommodating cavity 34 due to unstable insertion of the protruding portion 21 into the accommodating cavity 34 is avoided, and the occurrence of detachment of the light shielding sleeve 30 and the protruding portion 21 is avoided.

In this embodiment, as shown in fig. 1, 4 and 5, two opposite outer sides of the protruding portion 21 are each recessed inward and form a positioning groove 22, and two opposite inner sides of the accommodating cavity 34 are each extended outward to form a positioning protrusion 32, and each positioning protrusion 32 is connected with each positioning groove 22 in a matching manner.

Specifically, the number of the positioning grooves 22 is at least two, and the number of the positioning protrusions 32 is consistent with the number of the positioning grooves 22, and each positioning groove 22 is arranged in a one-to-one correspondence with each positioning protrusion 32. At the same time, the heights of the positioning grooves 22 on the two opposite outer sides of the protruding part 21 correspond to each other and are consistent.

Preferably, the number of the positioning slots 22 is two, and the two positioning slots 22 are symmetrically disposed on opposite outer sides of the protruding portion 21. Meanwhile, the number of the positioning protruding blocks 32 corresponds to the number of the positioning grooves 22 and is two. Therefore, by forming a positioning groove 22 on each of the opposite outer sides of the protruding portion 21 and forming a positioning protrusion 32 on each of the opposite inner sides of the accommodating cavity 34, each positioning protrusion 32 can be clamped into each positioning groove 22, so that the protruding portion 21 can be firmly clamped and fixed with the light-shielding sleeve 30, and the light-shielding sleeve 30 sleeved on the protruding portion 21 can more effectively resist the impact of external force from the side portion due to the symmetrical distribution of each positioning protrusion 32 and each positioning groove 22, so that the stability of the light-shielding sleeve 30 sleeved on the protruding portion 21 is improved.

Furthermore, by setting the number of the positioning slots 22 and the number of the positioning protrusions 32 to be two, and arranging the positioning slots 22 and the positioning protrusions 32 on the opposite outer sides of the protruding portion 21 and the opposite inner sides of the accommodating cavity 34 symmetrically, the problem of strength decrease of the protruding portion 21 due to too many positioning slots 22 being formed on the protruding portion 21 and the problem of high processing difficulty and high manufacturing cost of the accommodating cavity 34 due to too many positioning protrusions 32 being formed on the side wall of the accommodating cavity 34 are avoided while the stable clamping and fixing of the light shielding sleeve 30 and the protruding portion 21 is realized.

More preferably, the inner side of the positioning slot 22 is an arc surface, and the outer side of the positioning projection 32 corresponding to the positioning slot 22 is also an arc surface and is matched with the inner side of the positioning slot 22. Thus, when the shade sleeve 30 is sleeved and matched with the convex part 21, the positioning convex block 32 can smoothly enter the positioning groove 22 and is embedded in the positioning groove 22. Meanwhile, since the inner side surface of the positioning groove 22 and the outer side surface of the positioning lug 32 are both arc surfaces, the contact area between the positioning groove 22 and the positioning lug 32 is obviously increased due to the setting of the arc surfaces, so that the friction force between the positioning groove 22 and the positioning lug 32 is larger, and the light shielding sleeve 30 is not easy to slip off and separate from the protruding part 21.

In this embodiment, as shown in fig. 1, 2 and 6, two first deformation holes 31 are further formed in the other inner side surface of the accommodating cavity 34 adjacent to the inner side surface provided with the positioning protrusion 32, and the two first deformation holes 31 are distributed at intervals and are respectively close to two side edges of the light shielding sleeve 30. Specifically, the two first deformation holes 31 are vertical through holes, and the two first deformation holes 31 are parallel to each other.

Further, through setting up two first deformation holes 31 to make two first deformation holes 31 interval distribution and be close to the both sides edge of light screen cover 30 respectively, then because when the constant head tank 22 of seting up on the bulge 21 is established to the location lug 32 card that is equipped with on the light screen cover 30, two first deformation holes 31 alright cushion the deformation that the light screen cover 30 took place, and make the both sides wall of the light screen cover 30 that is close to two first deformation holes 31 can produce bigger elastic deformation so that the relatively easy card of location lug 32 is established into in the bulge 21.

Preferably, by setting the two first deformation holes 31 as vertical through holes, the two first deformation holes 31 can fully utilize the vertical space of the light shielding sleeve 30 and provide the two side walls of the light shielding sleeve 30 close to the two first deformation holes 31 with the largest buffer space. By keeping the two first deformation holes 31 parallel to each other, the two side walls of the light shielding sleeve 30 close to the two first deformation holes 31 can keep the same deformation amount when the positioning convex blocks 32 are clamped into the positioning grooves 22, so that the deformation of the two sides of the light shielding sleeve 30 is uniform, and the problem that stress concentration occurs on one side of the two side walls due to long-term too much load bearing and cracking occurs due to inconsistent deformation of the two side walls of the light shielding sleeve 30 is avoided.

In this embodiment, as shown in fig. 1, 2 and 5, two second deformation holes 33 are formed in the other inner side surface of the accommodating cavity 34 opposite to the inner side surface in which the two first deformation holes 31 are formed, and the two second deformation holes 33 are formed at intervals and in one-to-one correspondence with the two first deformation holes 31. Specifically, the two first deformation holes 31 and the two second deformation holes 33 are kept parallel to each other.

Further, by arranging the two second deformation holes 33 and enabling the two second deformation holes 33 to be arranged corresponding to the two first deformation holes 31, it is ensured that both side walls of the light-shielding sleeve 30 close to the two first deformation holes 31 and the two second deformation holes 33 are simultaneously and elastically deformed outwards, and the both side walls cannot be kinked relative to the upper end face and/or the lower end face of the light-shielding sleeve 30 in the elastic deformation process, and further, the situation that cracks are generated and broken at the junction of the both side walls and the upper end face and/or the lower end face due to kinking of the both side walls relative to the upper end face and/or the lower end face of the light-shielding sleeve 30 is avoided, so that the durability of the light-shielding sleeve 30 is further improved, and the reliability and the stability of the LED light bar 20 assembly in long-time use are improved.

Preferably, each second deformation hole 33 corresponds to each positioning bump 32 one by one, and each second deformation hole 33 extends to form an arc-shaped groove 331 in a direction away from each positioning bump 32 at a position close to each positioning bump 32, each arc-shaped groove 331 corresponds to each positioning bump 32 one by one, and an arc center of each arc-shaped groove 331 coincides with an arc center of an arc-shaped outer side wall of each positioning bump 32. Therefore, by forming the arc grooves 331, a second buffer space is further formed between each arc groove 331 and each positioning protrusion 32, so that the problem of insufficient buffer space provided by the inner side walls of the accommodating cavities 34 at the positions close to the positioning protrusions 32 and the positioning blocks is avoided. Further, by providing the arc-shaped groove 331, the two second deformation holes 33 do not need to provide enough buffer space for satisfying the inner sidewall of the accommodating cavity 34 near the positioning protrusion 32, so that the width of the two second deformation holes is widened, and the space waste of the sidewall of the light shielding sleeve 30 is avoided, and the light shielding sleeve 30 is ensured to have enough strength.

In this embodiment, as shown in fig. 1, 2 and 6, the light shielding sleeve 30 is provided with a communication hole 35 for communicating with the accommodating cavity 34, the conductive pin 40 is embedded in the communication hole 35 and extends into the accommodating cavity 34, the communication hole 35 has a plurality of communication holes, and each communication hole 35 is formed at an included angle between the outer top surface and the outer side surface of the light shielding sleeve 30 at intervals. Specifically, the communication holes 35 are arranged in parallel, the communication holes 35 are in one-to-one correspondence with the conductive pins 40, and the positions of the communication holes 35 are in one-to-one correspondence with the positions of the conductive pieces 23 provided on the protruding portion 21.

Further, by providing the communication hole 35 on the light shielding sleeve 30 and making the conductive pin 40 embedded in the communication hole 35 and penetrating into the accommodating cavity 34, the communication hole 35 can protect the conductive pin 40 from being damaged by the impact of foreign objects. And make each intercommunicating pore 35 and each conductive needle 40 one-to-one, then each conductive needle 40 can inlay respectively and establish in each intercommunicating pore 35, just so avoided because each conductive needle 40 mixes in a intercommunicating pore 35 and arouse the problem that LED lamp strip subassembly appears circuit trouble, and then guaranteed the safety in utilization and the stability in utilization of LED lamp strip subassembly.

Further, by keeping the communication holes 35 parallel to each other, the conductive pins 40 embedded in the communication holes 35 can naturally be kept parallel, so that the space occupied by the conductive pins 40 is optimized so that one space can accommodate a sufficient number of conductive pins 40. And through making the lateral wall of conductive needle 40 laminate mutually with conducting strip 23, then because conductive needle 40 and conducting strip 23 are plane contact, just so guaranteed conductive needle 40 and conducting strip 23 can realize electrical contact steadily, and then guaranteed the stability that external power supply supplied power for the LED lamp strip subassembly.

Preferably, by forming each communication hole 35 at an included angle between the outer side surface and the outer top surface of the light shielding sleeve 30, the contact end 41 of the conductive pin 40 extends out and leaks out to the upper end of the communication hole 35, so that the contact end 41 of the conductive pin 40 can be contacted with an external power source to supply power to the LED light bar 20. Because only the contact end 41 of the conductive needle 40 extends out of the communication hole 35 of the shading sleeve 30, the conductive needle body is still accommodated in the shading sleeve 30, so that the communication performance of the conductive needle 40 and an external power supply and the protection of the conductive needle 40 are both realized.

More preferably, the shape of the communication hole 35 is matched with the shape of the conductive needle 40, and a supporting table 351 is further formed at the side wall of the communication hole 35 near the light shielding sleeve 30. Thus, by adapting the shape of the communication hole 35 to the shape of the conductive pin 40, the conductive pin 40 can be accurately embedded into the communication hole 35, and by making the communication hole 35 close to the side wall of the light shielding sleeve 30 and forming the supporting table 351, the lower part of the contact end 41 of the conductive pin 40 can be abutted against the supporting table 351, so that the conductive pin 40 can be firmly embedded into the communication hole 35.

In this embodiment, as shown in fig. 2, the inner top surface of the accommodating cavity 34 extends downward to form a stopper 36, and the lower end of the stopper 36 abuts against the upper end of the protruding portion 21. Further, by arranging the limiting block 36 in the accommodating cavity 34 and enabling the lower end of the limiting block 36 to be abutted against the upper end of the protruding portion 21, the protruding portion 21 cannot vertically move in the light shielding sleeve 30 due to the limiting block 36, so that the stability of installation of the protruding portion 21 in the light shielding sleeve 30 is further guaranteed, and meanwhile, the protruding portion 21 is more accurately matched with the light shielding sleeve 30.

In the present embodiment, the light shielding sleeve 30 is an elastic light shielding sleeve 30, and each positioning bump 32 and the limiting block 36 are integrally formed with the light shielding sleeve 30. Further, by setting the light-shielding sleeve 30 as the elastic light-shielding sleeve 30, that is, selecting an elastic material to prepare the light-shielding sleeve 30, the deformation capability of the two side walls of the light-shielding sleeve 30, which are close to the positioning protruding blocks 32, is further improved when the positioning protruding blocks 32 of the light-shielding sleeve 30 are matched with the positioning grooves 22 of the protruding parts 21, and then the probability of cracking of the light-shielding sleeve 30 in the deformation process is further reduced, so that the durability of the light-shielding sleeve 30 is further ensured. Meanwhile, the light shielding sleeve 30 is set to be the elastic light shielding sleeve 30, so that an assembler can quickly assemble the light shielding sleeve 30 and the protruding portion 21, and the assembly efficiency of the LED light bar 20 assembly is remarkably improved.

Further, by integrally forming each positioning bump 32 and each limiting block 36 with the light-shielding sleeve 30, uniformity of materials and performances of each part of the light-shielding sleeve 30 is improved, and then the connection part of each positioning bump 32 or each limiting block 36 and the light-shielding sleeve 30 body is not easy to crack. Thus, the production efficiency of the light shielding sleeve 30 is obviously improved, and the production cost of the light shielding sleeve 30 is reduced, so that the large-scale production of the light shielding sleeve 30 is facilitated.

The embodiment of the invention also provides an LED display module, which comprises the LED light bar assembly.

According to the LED display module provided by the embodiment of the invention, due to the adoption of the LED light bar assembly, the light shielding sleeve 30 can cover the protruding part 21 of the light bar and cover the assembly gap between the protruding part 21 and the assembly hole 11 of the backboard 10, so that light emitted from the LED light bar 20 cannot leak outside from the assembly gap, and the overall light leakage prevention performance of the LED display module is remarkably improved. Meanwhile, since the light-shielding sleeve 30 and the protruding portion 21 can be stably assembled and the light-shielding sleeve 30 has good elastic deformation performance, the light-shielding sleeve 30 and the protruding portion 21 can not be damaged even if frequent insertion is performed. Therefore, the LED light bar 20 assembly can keep stable performance for a long time, and the overall quality of the LED display module is better, and the quality sense is stronger.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The utility model provides a LED lamp strip subassembly, includes backplate and lamp strip, the lamp strip is inlayed and is located in the backplate, set up the pilot hole on the backplate, its characterized in that: the LED lamp strip assembly comprises a lamp strip, wherein a lamp strip is provided with a convex part extending out of an assembly hole, the convex part is provided with a conducting strip, the LED lamp strip assembly further comprises a shading sleeve, the shading sleeve is sleeved on the periphery of the convex part, the shading sleeve is provided with a conducting needle electrically connected with the conducting strip, and the end part of the shading sleeve covers the assembly hole so as to prevent an assembly gap between the assembly hole and the convex part from being exposed; the conductive needle is in a vertical strip shape, the upper end of the conductive needle extends outwards to form a contact end, and the contact end is vertical to the body of the conductive needle and extends out of the shading sleeve;

the shading sleeve is provided with a containing cavity, and the protruding part stretches into and is embedded in the containing cavity; the two opposite inner side surfaces of the accommodating cavity are respectively provided with a positioning lug in an outward extending mode, two first deformation holes are formed in the other inner side surface of the accommodating cavity adjacent to the inner side surface provided with the positioning lug, and the two first deformation holes are distributed at intervals and are respectively close to two side edges of the shading sleeve; two second deformation holes are formed in the accommodating cavity and in the other inner side face opposite to the inner side face in which the two first deformation holes are formed, and the two second deformation holes are formed at intervals and correspond to the two first deformation holes one by one; the shading sleeve is provided with a communication hole communicated with the accommodating cavity, and the conductive needle is embedded in the communication hole and extends into the accommodating cavity.

2. The LED light bar assembly of claim 1, wherein: the two opposite outer side surfaces of the protruding part are recessed inwards to form positioning grooves, and each positioning lug is connected with each positioning groove in a matching mode.

3. The LED light bar assembly of claim 1 or 2, wherein: the number of the communication holes is several, and each communication hole is formed at an included angle between the outer top surface and the outer side surface of the shading sleeve at intervals.

4. The LED light bar assembly of claim 2, wherein: the inner top surface of the accommodating cavity extends downwards to form a limiting block, and the lower end of the limiting block is abutted to the upper end of the protruding portion.

5. The LED light bar assembly of claim 4, wherein: the shading sleeve is an elastic shading sleeve, and each positioning lug and the limiting block are integrally formed with the shading sleeve.

6. An LED display module, its characterized in that: an LED light strip assembly comprising any one of claims 1-5.