CN216307479U

CN216307479U - High-brightness LED backlight source with adjustable illumination range

Info

Publication number: CN216307479U
Application number: CN202122855656.XU
Authority: CN
Inventors: 程先金; 徐金军; 杨重影
Original assignee: Shenzhen Jingjiashi Electronics Co ltd
Current assignee: Shenzhen Jingjiashi Electronics Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-15
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a high-brightness LED backlight source with an adjustable illumination range, which comprises a backlight source, wherein both sides of the backlight source are fixedly connected with a storage box, the top of the storage box is provided with a rotating rod, and the top of the backlight source is fixedly connected with a transmission mechanism. According to the utility model, the bidirectional motor is started, the bidirectional motor drives the rotating rod to rotate, the rotating rod drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the rotating rod to rotate, the light-shielding cloth is wound when the rotating rod rotates, the light-shielding cloth drives the limiting plate to move outwards, and finally, if the light range needs to be reduced, the operation is reversed, and the limiting plate is driven to rebound through the elasticity of the spring, so that the advantage of light range adjustment is achieved, the phenomenon of light leakage or insufficient illumination when glass plates of different sizes are illuminated is solved, the detection accuracy of a user on the glass plates is influenced, and the problem of the service performance of a backlight source is reduced.

Description

High-brightness LED backlight source with adjustable illumination range

Technical Field

The utility model relates to the technical field of illumination, in particular to a high-brightness LED backlight source capable of adjusting an illumination range.

Background

The LED backlight source is needed when the display glass plate is lighted, but the phenomenon of light leakage or insufficient illumination can occur when the glass plates with different sizes are lighted, the detection precision of a user on the glass plate is influenced, and the service performance of the backlight source is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the present invention provides a high brightness LED backlight source with adjustable illumination range, which has the advantage of adjusting the light range, and solves the problems that when glass plates of different sizes are illuminated, light leakage or insufficient illumination occurs, which affects the detection accuracy of the glass plates by users, and reduces the service performance of the backlight source.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high brightness LED backlight of adjustable illumination scope, includes the backlight, the equal fixedly connected with receiver in both sides of backlight, the top of receiver is provided with the bull stick, the top fixedly connected with drive mechanism of backlight, the bottom of bull stick is run through to the inside of receiver and is passed through the bottom of bearing swing joint at transmission box inner wall, the surface rolling of bull stick has shading cloth, the one end that the bull stick was kept away from to shading cloth runs through the front that the transmission box extended a backlight, the one end fixedly connected with limiting plate of bull stick is kept away from to shading cloth, the spout has all been seted up to the positive top of backlight and bottom, the top at the limiting plate back and the equal fixedly connected with slider in bottom, the back of slider extends to the inside of spout.

Preferably, the transmission mechanism comprises a transmission box fixedly connected to the top of the backlight source, the top of the rotating rod extends into the transmission box and is fixedly connected with a first helical gear, a second helical gear is meshed with the inner side of the first helical gear, a transmission rod is fixedly connected to the inner side of the second helical gear, a bidirectional motor is fixedly connected to the top of the inner wall of the transmission box, output ends of two sides of the bidirectional motor are fixedly connected with the transmission rod, a plurality of limiting blocks are sleeved on the surface of the transmission rod, and the tops of the limiting blocks are fixedly connected to the top of the inner wall of the transmission box.

Preferably, the top of the first bevel gear is fixedly connected with a limiting rod, and the top of the limiting rod is movably connected to the top of the inner wall of the transmission box through a bearing.

Preferably, a guide rod is fixedly connected to the inside of the sliding groove in the transverse direction, and the guide rod penetrates through the sliding block and is connected with the sliding block in a sliding mode.

Preferably, the surface of the guide rod is sleeved with a spring, the outer side of the spring is fixedly connected to the inner wall of the sliding groove, and the inner side of the spring is fixedly connected to the outer side of the sliding block.

Preferably, the front surface of the transmission box is provided with an opening, the width of the opening is larger than that of the shading cloth, and the opening is matched with the shading cloth for use.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the bidirectional motor is started, the bidirectional motor drives the rotating rod to rotate, the rotating rod drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the rotating rod to rotate, the light-shielding cloth is wound when the rotating rod rotates, the light-shielding cloth drives the limiting plate to move outwards, and finally, if the light range needs to be reduced, the operation is reversed, and the limiting plate is driven to rebound through the elasticity of the spring, so that the advantage of light range adjustment is achieved, the phenomenon of light leakage or insufficient illumination when glass plates of different sizes are illuminated is solved, the detection accuracy of a user on the glass plates is influenced, and the problem of the service performance of a backlight source is reduced.

2. By arranging the transmission mechanism, the shading cloth can be conveniently pushed and pulled by a user, and the comfort level of the user is improved.

3. According to the utility model, the limiting rod is arranged, so that the first bevel gear can be limited, and the phenomenon that the first bevel gear is inclined is prevented.

4. According to the utility model, the guide rod is arranged, so that the sliding block can be guided, and the stability of the sliding block during movement is improved.

5. According to the utility model, the spring is arranged, so that the limiting plate can automatically rebound, and the service performance of the limiting plate is improved.

6. According to the utility model, the shading cloth can completely penetrate through the storage box to move by arranging the opening, so that the phenomenon that the shading cloth is blocked due to the excessively small opening is prevented.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

fig. 4 is a perspective view of a portion of the present invention.

In the figure: 1. a backlight source; 2. a storage box; 3. a rotating rod; 4. a transmission mechanism; 41. a transmission box; 42. A first helical gear; 43. a second helical gear; 44. a transmission rod; 45. a bi-directional motor; 46. a limiting block; 5. a shade cloth; 6. a limiting plate; 7. a chute; 8. a slider; 9. a limiting rod; 10. a guide bar; 11. a spring; 12. and (4) opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the high-brightness LED backlight source with an adjustable illumination range provided by the utility model includes a backlight source 1, both sides of the backlight source 1 are fixedly connected with a storage box 2, the top of the storage box 2 is provided with a rotating rod 3, the top of the backlight source 1 is fixedly connected with a transmission mechanism 4, the bottom of the rotating rod 3 penetrates through the interior of the storage box 2 and is movably connected to the bottom of the inner wall of a transmission box 41 through a bearing, the surface of the rotating rod 3 is wound with a shading cloth 5, one end of the shading cloth 5, which is far away from the rotating rod 3, penetrates through the transmission box 41 and extends to the front of the backlight source 1, one end of the shading cloth 5, which is far away from the rotating rod 3, is fixedly connected with a limiting plate 6, the top and the bottom of the front of the backlight source 1 are both provided with sliding grooves 7, the top and the bottom of the back of the limiting plate 6 are both fixedly connected with a sliding block 8, and the back of the sliding block 8 extends to the interior of the sliding groove 7.

Referring to fig. 3, the transmission mechanism 4 includes a transmission box 41 fixedly connected to the top of the backlight 1, the top of the rotating rod 3 extends to the inside of the transmission box 41 and is fixedly connected with a first helical gear 42, the inner side of the first helical gear 42 is engaged with a second helical gear 43, the inner side of the second helical gear 43 is fixedly connected with a transmission rod 44, the top of the inner wall of the transmission box 41 is fixedly connected with a bidirectional motor 45, the output ends of the two sides of the bidirectional motor 45 are fixedly connected with the transmission rod 44, the surface of the transmission rod 44 is sleeved with a plurality of limiting blocks 46, and the top of the limiting blocks 46 is fixedly connected to the top of the inner wall of the transmission box 41.

As a technical optimization scheme of the utility model, the transmission mechanism 4 is arranged, so that the shading cloth 5 can be conveniently pushed and pulled by a user, and the comfort level of the user is improved.

Referring to fig. 1, the top of the first bevel gear 42 is fixedly connected with a limiting rod 9, and the top of the limiting rod 9 is movably connected to the top of the inner wall of the transmission box 41 through a bearing.

As a technical optimization scheme of the present invention, the first helical gear 42 can be limited by providing the limit rod 9, so as to prevent the first helical gear 42 from tilting.

Referring to fig. 2, a guide rod 10 is fixedly connected to the inside of the sliding groove 7 in the transverse direction, and the guide rod 10 penetrates through the sliding block 8 and is slidably connected with the sliding block 8.

As a technical optimization scheme of the utility model, the guide rod 10 is arranged, so that the sliding block 8 can be guided, and the stability of the sliding block 8 during movement is improved.

Referring to fig. 3, the surface of the guide rod 10 is sleeved with a spring 11, the outer side of the spring 11 is fixedly connected to the inner wall of the sliding chute 7, and the inner side of the spring 11 is fixedly connected to the outer side of the sliding block 8.

As a technical optimization scheme of the utility model, the limiting plate 6 can automatically rebound by arranging the spring 11, so that the service performance of the limiting plate 6 is improved.

Referring to fig. 1, an opening 12 is opened on the front surface of the transmission case 41, the width of the opening 12 is larger than the width of the shade cloth 5, and the opening 12 is used in cooperation with the shade cloth 5.

As a technical optimization scheme of the utility model, the shading cloth 5 can completely pass through the storage box 2 to move by arranging the opening 12, so that the phenomenon that the shading cloth 5 is blocked due to the undersize of the opening 12 is prevented.

The working principle and the using process of the utility model are as follows: during the use, at first start two-way motor 45, two-way motor 45 drives bull stick 3 rotatory, bull stick 3 drives the rotation of second helical gear 43, second helical gear 43 drives first helical gear 42 rotatory, first helical gear 42 drives bull stick 3 rotatory, carry out the rolling to shading cloth 5 when bull stick 3 rotates, shading cloth 5 drives limiting plate 6 and outwards removes, at last if need transfer the reverse above-mentioned operation of little light scope and drive limiting plate 6 through the elasticity of spring 11 and kick-back to the advantage that has possessed the light range of regulation.

In summary, the following steps: this high brightness LED backlight of adjustable illumination scope, through starting two-way motor 45, two-way motor 45 drives bull stick 3 rotatory, bull stick 3 drives second helical gear 43 rotatory, second helical gear 43 drives first helical gear 42 rotatory, first helical gear 42 drives bull stick 3 rotatory, it rolls to shading cloth 5 when bull stick 3 rotates, shading cloth 5 drives limiting plate 6 and outwards removes, at last if need transfer the reverse above-mentioned operation of little light scope and drive limiting plate 6 resilience through the elasticity of spring 11, thereby the advantage of adjusting the light scope has been possessed, the phenomenon that light leak or illumination is not enough will appear when the glass board of equidimension not lights up has been solved, the user has been influenced the detection precision to the glass board, the problem of backlight performance has been reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-brightness LED backlight source with adjustable illumination range comprises a backlight source (1), and is characterized in that: both sides of the backlight source (1) are fixedly connected with a storage box (2), the top of the storage box (2) is provided with a rotating rod (3), the top of the backlight source (1) is fixedly connected with a transmission mechanism (4), the bottom of the rotating rod (3) penetrates into the storage box (2) and is movably connected with the bottom of the inner wall of the transmission box (41) through a bearing, the surface of the rotating rod (3) is wound with shading cloth (5), one end of the shading cloth (5) far away from the rotating rod (3) penetrates through the transmission box (41) and extends to the front of the backlight source (1), one end of the shading cloth (5) far away from the rotating rod (3) is fixedly connected with a limiting plate (6), the top and the bottom of the front surface of the backlight source (1) are both provided with a sliding chute (7), the top and the bottom at the back of the limiting plate (6) are both fixedly connected with sliding blocks (8), and the back of each sliding block (8) extends to the inside of the sliding groove (7).

2. The adjustable illumination range high brightness LED backlight of claim 1, wherein: drive mechanism (4) are including transmission box (41) at backlight (1) top of fixed connection, the top of bull stick (3) extends to the inside of transmission box (41) and first helical gear of fixedly connected with (42), the inboard meshing of first helical gear (42) has second helical gear (43), the inboard fixedly connected with transfer line (44) of second helical gear (43), the top fixedly connected with two-way motor (45) of transmission box (41) inner wall, the output and transfer line (44) fixed connection of two-way motor (45) both sides, the surface cover of transfer line (44) is equipped with a plurality of stopper (46), the top fixed connection of stopper (46) is at the top of transmission box (41) inner wall.

3. The adjustable illumination range high brightness LED backlight of claim 2, wherein: the top of the first bevel gear (42) is fixedly connected with a limiting rod (9), and the top of the limiting rod (9) is movably connected to the top of the inner wall of the transmission box (41) through a bearing.

4. The adjustable illumination range high brightness LED backlight of claim 1, wherein: the inner part of the sliding groove (7) is transversely and fixedly connected with a guide rod (10), and the guide rod (10) penetrates through the sliding block (8) and is in sliding connection with the sliding block (8).

5. The adjustable illumination range high brightness LED backlight source of claim 4, wherein: the surface of the guide rod (10) is sleeved with a spring (11), the outer side of the spring (11) is fixedly connected to the inner wall of the sliding groove (7), and the inner side of the spring (11) is fixedly connected to the outer side of the sliding block (8).

6. The adjustable illumination range high brightness LED backlight of claim 1, wherein: an opening (12) is formed in the front face of the transmission box (41), the width of the opening (12) is larger than that of the shading cloth (5), and the opening (12) is matched with the shading cloth (5) for use.