Double-color-temperature LED module with secondary lens

Abstract

The utility model belongs to the field of LED illumination, particularly relates to a double-color-temperature LED module with a secondary lens, and aims to solve the problems that an LED light source or a PCB (printed circuit board) cannot be replaced and used when damaged due to the fact that the secondary optical lens and a mounting shell are connected in a glue injection manner and are inconvenient to detach and separate after being connected, and the whole device needs to be replaced, so that the production cost is low, and the like. According to the technical scheme, the LED display screen comprises a PCB (printed circuit board); and the connecting and fixing mechanism is arranged on the secondary optical lens and is used for connecting and fixing the secondary optical lens and the mounting shell. When the LED lamp is used, the PCB and the lens board can be fixedly installed on the installation shell, meanwhile, the effect that installation, connection and detachment are convenient to separate can be achieved, the situation that the two LED chips or the PCB cannot be replaced for use when damaged is avoided, the situation that resource waste is caused due to the fact that the whole device needs to be replaced is avoided, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lighting, in particular to a secondary lens dual-color temperature LED module. Background Art

[0002] LED lighting has the characteristics of energy saving, environmental protection, and long life. At present, with the continuous improvement of LED chip technology, its cost continues to decline and its light efficiency continues to improve, which makes LED lighting more and more popular and applied.

[0003] After searching, the patent with the authorization announcement number CN210601423U proposes a secondary lens dual color temperature LED module, including a PCB board, an LED light source arranged on the PCB board, power lines arranged on both sides of the PCB board and a secondary optical lens arranged on the LED light source, the PCB board is provided with a mounting shell on the side away from the LED light source, and the PCB board and the mounting shell are provided with positioning holes. This secondary lens dual color temperature LED module uses back injection by using the peripheral edge of the secondary optical lens to buckle into the mold when connecting between the secondary optical lens and the mounting shell; before injection molding, the PCB board is covered by the secondary optical lens to protect the LED and circuit components, reducing the product defect rate, thereby achieving the corresponding distribution of the lens body in the secondary optical lens on the LED light source on the PCB board, and then achieving the effect of effectively and evenly dispersing the light generated by the LED light source, reducing the product dosage in the same irradiation area, improving the luminous efficiency of the dual color temperature LED module, effectively reducing the number of LED light sources used, and improving the service life of the LED light source. There are the following problems in this technical solution:

[0004] When in use, the light generated by the LED light source can be dispersed by the secondary optical lens. Since the secondary optical lens and the mounting shell are connected by glue injection, and once connected, it is not convenient to disassemble and separate them, when the LED light source or PCB board is damaged, it cannot be replaced and the entire device needs to be replaced, which causes a waste of resources and increases the cost of use.

[0005] In view of the above problems, the present utility model document proposes a secondary lens dual-color temperature LED module. Utility Model Content

[0006] The utility model provides a secondary lens dual-color temperature LED module, which solves the disadvantages of the prior art that the secondary optical lens and the mounting shell are connected by glue injection, and once connected, it is not convenient to disassemble and separate them, resulting in that when the LED light source or PCB board is damaged, it is impossible to replace it and the device needs to be replaced as a whole, which causes a waste of resources and increases the cost of use.

[0007] The utility model provides the following technical solutions:

[0008] A secondary lens dual-color temperature LED module, comprising:

[0009] A PCB board, a plurality of cold white LED chips and a plurality of warm white LED chips are fixedly mounted on the top of the PCB board, a plurality of power lines are arranged on both sides of the PCB board, a secondary optical lens and a mounting shell are arranged on the top and bottom of the PCB board, the secondary optical lens is composed of a lens plate and a plurality of LED lenses, and the plurality of LED lenses correspond to the plurality of cold white LED chips and the plurality of warm white LED chips respectively;

[0010] The connecting and fixing mechanism is arranged on the secondary optical lens and is used for connecting and fixing the secondary optical lens and the mounting shell.

[0011] In a possible design, the connecting and fixing mechanism includes four fixing bolts, and the four fixing bolts are symmetrically inserted through the top of the lens plate in pairs, the top of the PCB board is symmetrically provided with through holes for the fixing bolts to pass through in pairs, and the top of the mounting shell is symmetrically provided with threaded holes for threaded connection of the fixing bolts in pairs.

[0012] In a possible design, the top of the lens plate is symmetrically provided with slots for inserting the threaded head parts of the fixing bolts, and the bottom of the lens plate is provided with two rubber pads that fit with the top of the mounting shell.

[0013] In a possible design, the bottom side of the lens plate is symmetrically fixed with limit rods in pairs, the top of the PCB board is symmetrically provided with limit holes for the limit rods to pass through, and the top of the mounting shell is symmetrically provided with positioning holes for the limit rods to be inserted in pairs.

[0014] In a possible design, a plurality of rubber seats for clamping and placing power cords are provided on the top of the mounting shell, a plurality of slots for clamping the power cords are provided on the bottom of the lens plate, and a rubber ring that fits with the outer wall of the power cord is provided on the inner wall of each slot.

[0015] In a possible design, a retaining wall glue is disposed outside each of the cool white LED chips and the plurality of warm white LED chips, and the retaining wall glue is fixedly disposed on the top of the PCB board.

[0016] In a possible design, two mounting plates are fixedly disposed on both sides of the mounting shell, and a mounting hole is formed on the top of each mounting plate.

[0017] In a possible design, a plurality of heat dissipation slots are respectively formed on both sides of the mounting shell.

[0018] In the present application, when in use, first place the PCB board on the mounting shell accordingly, so that the limiting holes and through holes on the PCB board correspond to the positioning holes and through holes respectively. At this time, the secondary optical lens is clamped to the top of the PCB board, and the bottom side is in contact with the top side of the mounting shell. At the same time, the limiting rod fixed on the bottom side of the lens board will pass through the limiting hole and be inserted into the positioning hole, which is beneficial to limit and fix the PCB board, and has a positioning effect on the secondary optical lens, so as to facilitate the later installation and use. At this time, the LED lens arranged on the top of the lens board will correspond to the cold white LED chip and the warm white LED chip respectively, and the cold white LED chip will be aligned with the hot white LED chip. The white LED chip and the warm white LED chip can emit cold white light and warm white light respectively, thereby achieving a dual color temperature illumination effect. The light generated by the cold white LED chip and the warm white LED chip can be effectively and evenly dispersed through the LED lens, avoiding the problem of uneven light mixing between the cold white LED chip and the warm white LED chip, thus improving the experience. At the same time, the wall-blocking glue set outside the cold white LED chip and the warm white LED chip is helpful to avoid light interference between the cold white light and the warm white light emitted by the two LED chips, further improving the uniformity of the light spot and enhancing the light illumination effect.

[0019] After the lens plate and the PCB are positioned, the fixing bolts are used to penetrate the top of the lens plate, and pass through the through holes on the top of the PCB and are threaded into the corresponding threaded holes. After the threads are rotated to a certain extent, the PCB and the lens plate can be fixedly installed on the mounting shell, and the bolt head part of the fixing bolts will be inserted into the corresponding slots, so as to achieve the effect of hidden protection. At the same time, the rubber pad on the bottom side of the lens plate will fit tightly to the top side of the mounting shell, which is conducive to enhancing the tightness between the lens plate and the mounting shell, improving the firm fixation of the connection between the lens plate and the mounting shell, and also convenient for disassembly, so as to achieve the effect of easy installation connection and disassembly separation, preventing the two LED chips or PCB boards from being replaced when damaged, avoiding the need to replace the device as a whole, causing waste of resources, and thus reducing the use cost. While the lens plate is fixed, the card slots opened at the bottom will limit the power cords on both sides of the PCB, and the power cord will be between the rubber ring and the rubber seat inside the card slot. The rubber ring and the rubber seat can tightly fix the power cord and protect it, avoiding the root of the power cord from being easily damaged, increasing the use time, and facilitating use.

[0020] In the utility model, the secondary lens dual-color temperature LED module can fix the PCB board and the lens board to the installation shell through the connection and fixing mechanism, and it is also convenient to disassemble them, so as to achieve the effect of easy installation and connection and disassembly and separation;

[0021] In the utility model, the secondary lens dual-color temperature LED module is advantageous in avoiding light interference between the cold white light and the warm white light emitted by the two LED chips by setting the retaining wall glue, further improving the uniformity of the light spot and enhancing the light irradiation effect;

[0022] In the utility model, the rubber ring and the rubber seat can be provided to tightly fix the power cord and protect it, thereby preventing the root of the power cord from being easily damaged and increasing the service life;

[0023] In the utility model, the PCB board and the lens board can be fixedly installed on the installation shell, and the effect of easy installation connection and disassembly and separation can also be achieved, so that the two LED chips or PCB boards cannot be replaced when damaged, and the need to replace the entire device is avoided, which causes a waste of resources and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the main structure of a secondary lens dual-color temperature LED module provided by an embodiment of the utility model;

[0025] Figure 2 This is one of the schematic diagrams of the split structure of a secondary lens dual-color temperature LED module provided by an embodiment of the utility model;

[0026] Figure 3 The second schematic diagram of the disassembly structure of a secondary lens dual-color temperature LED module provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the lens plate structure of a secondary lens dual-color temperature LED module provided in an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. PCB board; 2. Cold white LED chip; 3. Warm white LED chip; 4. Wall glue; 5. Power cord; 6. Mounting shell; 7. Heat dissipation groove; 8. Rubber seat; 9. Positioning hole; 10. Threaded hole; 11. Limit hole; 12. Through hole; 13. Secondary optical lens; 14. Lens plate; 15. LED lens; 16. Slot; 17. Rubber ring; 18. Fixing bolt; 19. Slot; 20. Limit rod; 21. Mounting plate; 22. Mounting hole; 23. Rubber pad. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] Please refer to Figure 1-Figure 4 , an LED module, comprising:

[0033] A PCB board 1, a plurality of cold white LED chips 2 and a plurality of warm white LED chips 3 are fixedly mounted on the top of the PCB board 1, a plurality of power lines 5 are arranged on both sides of the PCB board 1, a secondary optical lens 13 and a mounting shell 6 are arranged on the top and bottom of the PCB board 1, the secondary optical lens 13 is respectively composed of a lens plate 14 and a plurality of LED lenses 15, and the plurality of LED lenses 15 correspond to the plurality of cold white LED chips 2 and the plurality of warm white LED chips 3;

[0034] The connecting and fixing mechanism is arranged on the secondary optical lens 13 and is used for connecting and fixing the secondary optical lens 13 and the mounting shell 6 .

[0035] The above technical solution can achieve the goal that the LED lens 15 set on the top of the lens plate 14 will correspond to the cold white LED chip 2 and the warm white LED chip 3 respectively. The cold white LED chip 2 and the warm white LED chip 3 can emit cold white light and warm white light respectively, thereby achieving a dual-color temperature illumination effect. The light generated by the cold white LED chip 2 and the warm white LED chip 3 can be effectively and evenly dispersed through the LED lens 15, avoiding the problem of uneven mixed light in the cold white LED chip 2 and the warm white LED chip 3, thereby improving a better experience. The PCB board 1 and the lens plate 14 can be fixedly installed on the mounting shell 6 through a connecting and fixing mechanism, and it is also convenient to disassemble them, thereby achieving a technical effect of easy installation and connection and easy disassembly and separation.

[0036] Please refer to Figure 1-Figure 4 The connection and fixing mechanism includes four fixing bolts 18, which penetrate the top of the lens plate 14 symmetrically in pairs. The top of the PCB board 1 is symmetrically provided with through holes 12 for the fixing bolts 18 to penetrate, and the top of the mounting shell 6 is symmetrically provided with threaded holes 10 for the fixing bolts 18 to be threadedly connected in pairs.

[0037] Please refer to Figure 3 and Figure 4 The top of the lens plate 14 is symmetrically provided with slots 19 for inserting the threaded head parts of the fixing bolts 18 , and the bottom of the lens plate 14 is provided with two rubber pads 23 that fit with the top of the mounting shell 6 .

[0038] The above technical solution can achieve the purpose of using the fixing bolt 18 to penetrate the top of the lens plate 14, and pass through the through hole 12 on the top of the PCB board 1 and be threadedly connected to the corresponding threaded hole 10. After the thread is rotated to a certain extent, the PCB board 1 and the lens plate 14 can be fixedly installed on the mounting shell 6, and the bolt head part of the fixing bolt 18 will be inserted into the corresponding slot 19, so as to achieve the effect of hidden protection. At the same time, the rubber pad 23 on the bottom side of the lens plate 14 will fit tightly to the top side of the mounting shell 6, which is conducive to enhancing the tightness between the lens plate 14 and the mounting shell 6, improving the firm fixation of the connection between the lens plate 14 and the mounting shell 6, and also facilitating its disassembly, achieving the effect of facilitating installation and connection and disassembly, preventing the two LED chips or PCB board 1 from being unable to be replaced when damaged, avoiding the need to replace the device as a whole, causing waste of resources, and thus reducing the cost of use. Technical effect.

[0039] Please refer to Figure 3 and Figure 4 The top of the mounting shell 6 is provided with a plurality of rubber seats 8 for clamping and placing the power cord 5, and the bottom of the lens plate 14 is provided with a plurality of slots 16 for clamping the power cord 5, and the inner wall of each slot 16 is provided with a rubber ring 17 that fits with the outer wall of the power cord 5.

[0040] The above technical solution can achieve the goal that while the lens plate 14 is fixed, the card slot 16 opened at the bottom will clamp and limit the power cord 5 on both sides of the PCB board 1, and the power cord 5 will be between the rubber ring 17 and the rubber seat 8 inside the card slot 16. The rubber ring 17 and the rubber seat 8 can tightly fix the power cord 5 and protect it, thereby preventing the root of the power cord 5 from being easily damaged, thereby improving the technical effect of the service life.

[0041] Please refer to Figure 2 A retaining wall glue 4 is disposed outside each cold white LED chip 2 and multiple warm white LED chips 3 , and the retaining wall glue 4 is fixedly disposed on the top of the PCB board 1 .

[0042] The above technical solution can achieve the effect of utilizing the wall-blocking glue 4 arranged outside the cold white LED chip 2 and the warm white LED chip 3, which is beneficial to avoid light interference between the cold white light and the warm white light emitted by the two LED chips, further improves the uniformity of the light spot, and enhances the technical effect of the light irradiation effect.

[0043] The present application can be used in the field of LED lighting, and can also be used in other fields applicable to the present application.

[0044] The cold white LED chip 2 and the warm white LED chip 3 are the same as the cold white LED chip 2 and the warm white LED chip 3 mentioned in the Chinese patent authorization announcement No. CN217130992U, and their structures and mechanisms are not described in detail here;

[0045] Example 2

[0046] refer to Figure 2 and Figure 3 , improved on the basis of the first embodiment: a secondary lens dual color temperature LED module, which is applied to the field of LED lighting;

[0047] The bottom side of the lens plate 14 is symmetrically fixed with limit rods 20 in pairs, the top of the PCB board 1 is symmetrically provided with limit holes 11 for the limit rods 20 to pass through and limit, and the top of the installation shell 6 is symmetrically provided with positioning holes 9 for the limit rods 20 to be inserted.

[0048] The above technical scheme can achieve the purpose of placing the PCB board 1 correspondingly on the mounting shell 6, so that the limiting hole 11 and the through hole 12 on the PCB board 1 respectively correspond to the positioning hole 9 and the through hole 12. At the same time, the limiting rod 20 fixed on the bottom side of the lens plate 14 will pass through the limiting hole 11 and be inserted into the positioning hole 9, which is beneficial to limit and fix the PCB board 1, and has a positioning effect on the secondary optical lens 13, so as to facilitate the subsequent installation and use of technical effects.

[0049] Please refer to Figure 1 and Figure 3 Two mounting plates 21 are fixedly disposed on both sides of the mounting shell 6 , and a mounting hole 22 is opened on the top of each mounting plate 21 .

[0050] The above technical solution can achieve the technical effect of facilitating installation and use by passing the mounting bolts through the mounting holes 22 on the mounting plate 21, thereby facilitating the fixing of the mounting plate 21 and the mounting shell 6.

[0051] Please refer to Figure 1-Figure 4 A plurality of heat dissipation grooves 7 are respectively provided on both sides of the mounting shell 6 .

[0052] The above technical solution can achieve the technical effect of heat dissipation inside the device by setting the heat dissipation groove 7, which is beneficial to the heat dissipation effect on the components inside the device.

[0053] However, as is well known to those skilled in the art, the working principles and wiring methods of the PCB board 1, the cool white LED chip 2, the warm white LED chip 3 and the power cord 5 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0054] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A secondary lens dual color temperature LED module, characterized in that: include: A PCB board (1), wherein a plurality of cold white LED chips (2) and a plurality of warm white LED chips (3) are fixedly mounted on the top of the PCB board (1), a plurality of power lines (5) are arranged on both sides of the PCB board (1), a secondary optical lens (13) and a mounting shell (6) are arranged on the top and bottom of the PCB board (1), the secondary optical lens (13) is composed of a lens plate (14) and a plurality of LED lenses (15), and the plurality of LED lenses (15) correspond to the plurality of cold white LED chips (2) and the plurality of warm white LED chips (3); A connecting and fixing mechanism is arranged on the secondary optical lens (13) and is used to connect and fix the secondary optical lens (13) and the mounting shell (6).

2. A secondary lens dual color temperature LED module according to claim 1, characterized in that: The connecting and fixing mechanism comprises four fixing bolts (18), the four fixing bolts (18) are symmetrically arranged in pairs and penetrate the top of the lens plate (14), the top of the PCB board (1) is symmetrically provided with through holes (12) for the fixing bolts (18) to penetrate, and the top of the mounting shell (6) is symmetrically provided with threaded holes (10) for the fixing bolts (18) to be threadedly connected.

3. The secondary lens dual color temperature LED module according to claim 2, characterized in that: The top of the lens plate (14) is symmetrically provided with slots (19) for inserting the threaded head parts of the fixing bolts (18), and the bottom of the lens plate (14) is provided with two rubber pads (23) that fit the top of the mounting shell (6).

4. The secondary lens dual color temperature LED module according to claim 3, characterized in that: The bottom side of the lens plate (14) is symmetrically provided with limit rods (20) in pairs, the top of the PCB board (1) is symmetrically provided with limit holes (11) for the limit rods (20) to pass through and limit, and the top of the mounting shell (6) is symmetrically provided with positioning holes (9) for the limit rods (20) to be inserted.

5. The secondary lens dual color temperature LED module according to claim 1, characterized in that: The top of the mounting shell (6) is provided with a plurality of rubber seats (8) for clamping and placing the power cord (5), and the bottom of the lens plate (14) is provided with a plurality of clamping grooves (16) for clamping the power cord (5), and the inner wall of each of the clamping grooves (16) is provided with a rubber ring (17) that fits with the outer wall of the power cord (5).

6. The secondary lens dual color temperature LED module according to claim 1, characterized in that: A retaining wall glue (4) is provided on the outside of each of the cold white LED chips (2) and the plurality of warm white LED chips (3), and the retaining wall glue (4) is fixedly arranged on the top of the PCB board (1).

7. The secondary lens dual color temperature LED module according to claim 6, characterized in that: Two mounting plates (21) are fixedly arranged on both sides of the mounting shell (6), and a mounting hole (22) is provided on the top of each mounting plate (21).

8. The secondary lens dual color temperature LED module according to claim 7, characterized in that: A plurality of heat dissipation slots (7) are respectively provided on both sides of the installation shell (6).

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