A strip light having a sheet metal housing

Abstract

The utility model discloses a strip light source with sheet metal shell, including sheet metal shell, the cross section of sheet metal shell is U shape structure, inside is equipped with the containing chamber for containing a plurality of lamp pearl, the containing chamber one side is open end, the sheet metal shell includes bottom panel, the first side plate of installing in bottom panel one side and install the second side plate of bottom panel other side, the lamp pearl installs on bottom panel, bottom panel lower part is equipped with a plurality of interval arrangement's heat dissipation baffle, the last of first side plate and second side plate is bent and forms the curved limit end to open end inside, first side plate and second side plate all are equipped with the first baffle, the first clamping groove is formed between curved limit end and first baffle, the inside of first clamping groove is equipped with diffusion plate, the light of lamp pearl passes through diffusion plate and open end and emits outward, the utility model discloses have good heat dissipation performance, higher mechanical strength and assembly efficiency, and light weight.

Description

Technical Field

[0001] This utility model relates to the field of bar light source technology, and in particular to a bar light source with a sheet metal shell. Background Technology

[0002] In existing technologies, bar light sources are widely used in industrial inspection, machine vision, indoor lighting and other scenarios due to their advantages such as uniform illumination and controllable illumination range. As an important component of bar light sources, the housing must simultaneously meet the requirements of heat dissipation, protection, ease of installation and structural stability.

[0003] Currently, common strip light source housing solutions have the following problems: die-cast aluminum housings have high mold costs and long processing cycles, making it difficult to adapt to changing market demands; extruded aluminum profile housings have high processing efficiency, but their cross-sectional shape is limited, making it difficult to achieve complex structural designs and meet the appearance requirements of various application scenarios; plastic housings have lower costs, but poor heat dissipation performance and are prone to deformation after long-term use, affecting the stability and lifespan of the light source; in order to improve the heat dissipation of plastic housings, additional heat dissipation structures, such as heat sinks or fans, are required, which not only increases the overall cost but also makes the product design more complex. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of poor heat dissipation and insufficient structural strength of the existing strip light source housing, and to provide a strip light source with a sheet metal housing. This light source has good heat dissipation performance, high mechanical strength and assembly efficiency, and is lightweight. It can also be designed into different shapes and structures to meet diverse needs.

[0005] To achieve the above objectives, this utility model provides a strip light source with a sheet metal shell, including a sheet metal shell with a U-shaped cross-section and an internal cavity for accommodating a plurality of LED beads, one side of which is an open end; the sheet metal shell includes a bottom panel, a first side plate mounted on one side of the bottom panel, and a second side plate mounted on the other side of the bottom panel; the LED beads are mounted on the bottom panel, and a plurality of spaced heat dissipation baffles are mounted on the lower part of the bottom panel; the ends of the first and second side plates are bent inward toward the open end to form a bending limiting end; both the first and second side plates are equipped with a first partition, and a first slot is formed between the bending limiting end and the first partition; a diffuser plate is installed inside the first slot, and the light emitted by the LED beads passes through the diffuser plate and the open end and is emitted outward.

[0006] Preferably, a first end plate is installed on one side of the sheet metal housing, and a second end plate is installed on the other side; one end of the bottom panel is vertically bent to form a first vertical plate, and the other end is vertically bent to form a second vertical plate. The first end plate and the first vertical plate are fixedly connected together by bolts, and the second end plate and the second vertical plate are fixedly connected together by bolts. The first end plate and the second end plate seal both ends of the receiving chamber.

[0007] Preferably, both ends of the first side plate and the second side plate are provided with a first receiving groove, and a fixing connecting piece is installed inside the first receiving groove. The first end plate and the second end plate are fixedly connected together with the fixing connecting piece by bolts.

[0008] Preferably, the lamp bead is also electrically connected to a power cord, which provides power to the lamp bead and drives the light emitted by the lamp bead. The first end plate is provided with a U-shaped groove for accommodating the power cord.

[0009] Preferably, both the first end plate and the second end plate are provided with a second receiving groove on their inner sides, and both ends of the diffuser plate are inserted into the second receiving groove.

[0010] Preferably, reflective paper is affixed to the first and second side plates to reflect the light emitted by the LED beads.

[0011] Preferably, the LED is a surface mount LED, which is bonded to the bottom panel using thermally conductive adhesive.

[0012] Preferably, the LED is a plug-in LED, which is inserted into the lower PCB board. The PCB board is electrically connected to the power cord and contacts the bottom panel through the lower thermal conductive silicone pad. The first side panel and the second side panel are both equipped with a second partition, and a second slot is formed between the second partition and the bottom panel. The PCB board and the thermal conductive silicone pad are installed inside the second slot.

[0013] Preferably, the first partition and the second partition are arranged in parallel, and each of the first partition and the second partition is provided with a plurality of first protrusions, which are arranged in sequence at intervals; the first side plate and the second side plate are provided with third receiving grooves adapted to the first protrusions, and the first protrusions are inserted into the third receiving grooves.

[0014] Preferably, one end of the heat dissipation partition is connected to the first vertical plate, and the other end is connected to the second vertical plate; the heat dissipation partition is provided with a plurality of second protrusions, which are arranged in sequence at intervals; the bottom panel is provided with a fourth receiving groove adapted to the second protrusions, and the second protrusions are inserted into the fourth receiving groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The sheet metal shell of this utility model includes a bottom panel, a first side panel, and a second side panel, which are bent to form a receiving chamber. The chamber is equipped with a number of LED beads and a diffuser plate. A number of spaced heat dissipation baffles are installed on the lower part of the bottom panel to achieve good heat dissipation performance and mechanical strength. At the same time, a first slot is provided by the bending limiting end and the first baffle plate. The diffuser plate is inserted into the first slot, and the LED beads are installed on the bottom panel, which has high assembly efficiency and product reliability.

[0017] 2. The sheet metal shell of this utility model adopts stamping, bending and other processes, and can be flexibly designed to adapt to different application scenarios, effectively meeting the diverse market demands. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a side view of a strip light source with a sheet metal shell provided by this utility model;

[0020] Figure 2 This is a front structural diagram of a strip light source with a sheet metal shell provided by this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a cross-sectional schematic diagram of a strip light source with a sheet metal shell provided by this utility model;

[0023] Figure 5 This is a side view of the cross-section of the sheet metal housing provided by this utility model;

[0024] Figure 6 This is a front cross-sectional view of the sheet metal housing provided by this utility model;

[0025] Figure 7 This is a structural schematic diagram of the sheet metal shell provided by this utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the first end plate provided by this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the heat dissipation partition provided by this utility model;

[0028] Figure 10 This is a schematic diagram of the structure of the first partition provided by this utility model.

[0029] The diagram includes:

[0030] 1. Sheet metal housing; 2. LED bead; 3. Receiving chamber; 31. Open end; 11. Bottom panel; 12. First side plate; 13. Second side plate; 14. Bending limit end; 15. First partition plate; 16. First slot; 4. Diffusing plate; 5. First end plate; 6. Second end plate; 111. First vertical plate; 112. Second vertical plate; 51. Bolt; 121. First receiving groove; 122. Fixing connecting piece; 7. Power cord; 53. U-shaped groove; 52. Second receiving groove; 22. PCB board; 23. Thermal conductive silicone pad; 25. Second partition plate; 17. Second slot; 151. First protrusion; 123. Third receiving groove; 9. Heat dissipation partition plate; 91. Second protrusion; 113. Fourth receiving groove. Detailed Implementation

[0031] The technical solution of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 10 This utility model provides a strip light source with a sheet metal shell.

[0033] like Figure 4 and Figure 5 As shown, the strip light source with a sheet metal shell includes two parts: a sheet metal shell 1 and a strip light source assembly installed inside the sheet metal shell 1. The strip light source assembly consists of several LED beads 2, which are characterized by high brightness, low power consumption, and long lifespan. The sheet metal shell 1 has a U-shaped cross-section and an internal cavity 3 for accommodating the LED beads 2. One end of the cavity 3 is open to allow the LED beads 2 to emit light outward.

[0034] The sheet metal housing 1 includes a bottom panel 11, a first side panel 12 mounted on one side of the bottom panel 11, and a second side panel 13 mounted on the other side of the bottom panel 11. The first side panel 12 and the second side panel 13 are respectively vertically connected to the two sides of the bottom panel 11 to form a U-shaped structure. The LED beads 2 are mounted on the bottom panel 11. Reflective paper is attached to the first side panel 12 and the second side panel 13 to reflect the light emitted by the LED beads 2 and improve the utilization rate of the light source.

[0035] Furthermore, in order to achieve heat dissipation, a number of spaced heat dissipation baffles 9 are installed on the lower part of the bottom panel 11. The heat dissipation baffles 9 extend along the length direction of the strip light source and are evenly distributed on the lower surface of the bottom panel 11 to increase the heat dissipation area and improve the heat dissipation efficiency.

[0036] like Figure 4 and Figure 5 As shown, the ends of the first side plate 12 and the second side plate 13 are bent inward toward the open end 31 to form a bending limiting end 14; both the first side plate 12 and the second side plate 13 are equipped with a first partition 15, and the bending limiting end 14 is arranged parallel to the first partition 15 and forms a first slot 16 with the first side plate 12 and the second side plate 13. The first slot 16 is used to install a diffuser plate 4, which is engaged in the first slot 16 to evenly disperse the light emitted by the lamp beads 2, avoiding the problem of glare or uneven lighting caused by excessive light concentration. In addition, the light emitted by the lamp beads 2 passes through the diffuser plate 4 and the open end 31 and shines outward.

[0037] The bottom panel 11 is vertically bent at one end to form a first vertical plate 111, and vertically bent at the other end to form a second vertical plate 112. The first vertical plate 111 and the second vertical plate 112 are located at both ends of the bottom panel 11, which are used to enhance the overall structural strength of the sheet metal shell 1. The first vertical plate 111, the second vertical plate 112, the bottom panel 11, the first side plate 12 and the second side plate 13 are all stamped or bent to ensure the integrity and mechanical strength of the sheet metal shell 1.

[0038] In order to seal both ends of the receiving chamber 3, a first end plate 5 is installed on one side of the sheet metal housing 1 and a second end plate 6 is installed on the other side; the first end plate 5 is fixedly connected to the first vertical plate 111 by bolts 51, and the second end plate 6 is fixedly connected to the second vertical plate 112 by bolts 51, thereby achieving effective sealing of the receiving chamber 3 and preventing external dust or impurities from entering the receiving chamber 3 and affecting the normal operation of the lamp bead 2.

[0039] Furthermore, to strengthen the aforementioned end connection, both ends of the first side plate 12 and the second side plate 13 are provided with first receiving grooves 121. In this embodiment, four first receiving grooves 121 are provided, evenly distributed at both ends of the first side plate 12 and the second side plate 13. Each first receiving groove 121 is equipped with a fixing connecting piece 122, which can be interference-fitted into the first receiving groove 121 to ensure a fixed connection. In other embodiments, the fixing connecting piece 122 can also be inserted into the first receiving groove 121 firstly and then fixedly connected by welding. The fixing connecting piece 122 is provided with a connecting hole 124, which has an internal thread for connecting with a bolt 51, thereby firmly connecting the first end plate 5 and the second end plate 6 to the first side plate 12 and the second side plate 13 respectively, further improving the overall stability and sealing performance of the structure. This design not only enhances the connection strength between the sheet metal shell 1 and the end plate, but also improves the overall reliability and service life of the strip light source.

[0040] like Figure 5 As shown, in order to improve the heat dissipation performance of the strip light source, one end of the heat dissipation partition 9 is connected to the first vertical plate 111, and the other end is connected to the second vertical plate 112; the heat dissipation partition 9 is provided with a plurality of second protrusions 91, which are arranged in sequence at intervals; the bottom panel 11 is provided with a fourth receiving groove 113 that is adapted to the second protrusions 91, and the second protrusions 91 are inserted into the fourth receiving groove 113; the second protrusions 91 are tightly fitted to the bottom panel 11, which enhances the heat conduction effect.

[0041] In addition, in this embodiment, the second protrusion 91 can be interference-fitted into the fourth receiving groove 113 to ensure the reliability of the connection; in other embodiments, the second protrusion 91 can also be fixed in the fourth receiving groove 113 by welding or bonding, thereby achieving a stable connection between the heat dissipation partition 9 and the bottom panel 11 and effectively improving the heat conduction efficiency.

[0042] Furthermore, the heat dissipation partition 9 divides the lower part of the bottom panel 11 into multiple lower cavities, in which a cooling fan can be installed to further improve the overall heat dissipation capacity of the strip light source, so that the lamp bead 2 can maintain a good heat dissipation state during long-term operation and avoid light decay or shortened lifespan due to high temperature.

[0043] like Figure 2As shown, the LED bead 2 is also electrically connected to a power cord 7. The power cord 7 provides power to the LED bead 2, driving the light emitted by the LED bead 2. One end of the power cord 7 is connected to an external power source, and the other end is electrically connected to the LED bead 2 through a U-shaped groove 53 provided on the first end plate 5 or the second end plate 6. In this embodiment, the U-shaped groove 53 is provided on the first end plate 5. The U-shaped groove 53 is used to accommodate the power cord 7. The power cord 7 is electrically connected to the LED bead 2 through the U-shaped groove 53, ensuring a stable and reliable connection between the power cord 7 and the LED bead 2.

[0044] like Figure 8 As shown, the first end plate 5 and the second end plate 6 are both provided with a second receiving groove 52 on their inner sides, and both ends of the diffuser plate 4 are inserted into the second receiving groove 52.

[0045] In this embodiment, the diffuser plate 4 is first inserted into the first slot 16 and then into the second receiving groove 52. The first end plate 5 and the second end plate 6 fix both ends of the diffuser plate 4, so that the diffuser plate 4 is not easy to loosen or fall off during long-term use, thereby maintaining the uniformity and stability of the light.

[0046] In this embodiment, as Figure 4 As shown, the LED bead 2 is a plug-in LED bead, which is inserted into the lower PCB board 22. The PCB board 22 is electrically connected to the power line 7. The PCB board 22 contacts the bottom panel 11 through the lower thermal conductive silicone pad 23. The thermal conductive silicone pad 23 effectively improves the heat conduction efficiency between the PCB board 22 and the bottom panel 11, further ensuring the stability and reliability of the LED bead 2 during continuous operation. The thermal conductive silicone pad 23 has good thermal conductivity and a certain buffering effect, which can reduce stress damage to the PCB board 22 caused by external vibration, and at the same time enhance the durability of the overall structure.

[0047] To secure the PCB board 22 to the thermally conductive silicone pad 23, both the first side plate 12 and the second side plate 13 are equipped with second partitions 25. A second slot 17 is formed between the second partition 25 and the bottom panel 11, and the PCB board 22 and the thermally conductive silicone pad 23 are installed inside the second slot 17. The second slot 17 ensures a stable fixation of the PCB board 22 and the thermally conductive silicone pad 23, preventing displacement or loosening during use and thus guaranteeing the normal operation of the LED bead 2.

[0048] In addition, similar to fixing the diffuser plate 4, a fifth receiving groove 55 can be provided on the first end plate 5 and the second end plate 6. The ends of the PCB board 22 and the thermal conductive silicone pad 23 can be inserted into the fifth receiving groove 55 to further enhance their fixing effect and prevent the PCB board 22 and the thermal conductive silicone pad 23 from shifting or falling off due to external force, thereby ensuring the stability and reliability of the LED bead 2 under long-term operation.

[0049] like Figure 4 and Figure 10 As shown, the first partition 15 and the second partition 25 are arranged in parallel. The first partition 15 and the second partition 25 are provided with a plurality of first protrusions 151, which are arranged in sequence at intervals. The first side plate 12 and the second side plate 13 are provided with third receiving grooves 123 adapted to the first protrusions 151, and the first protrusions 151 are inserted into the third receiving grooves 123.

[0050] Similarly, in this embodiment, the first protrusion 151 can be interference-fitted into the third receiving groove 123 to ensure the reliability of the connection; in other embodiments, the first protrusion 151 can also be fixed in the third receiving groove 123 by welding or bonding, thereby achieving a stable connection between the first partition 15, the second partition 25 and the first side plate 12, the second side plate 13.

[0051] In other embodiments, the LED bead 2 is a surface-mount LED bead, which is bonded to the bottom panel 11 using thermally conductive adhesive. The surface-mount LED bead is electrically connected to the power cord 7, which provides stable power support to the surface-mount LED bead, ensuring that the LED bead maintains uniform brightness during operation and that the display effect is not affected by power fluctuations. At the same time, the surface-mount LED bead is bonded with thermally conductive adhesive, which further enhances its heat dissipation performance, effectively extends the lifespan of the LED bead, and reduces the failure rate.

[0052] The manufacturing steps of the strip light source;

[0053] Step S1: The first side plate 12 and the second side plate 13 on both sides of the bottom panel 11 are bent vertically upward, and the ends of the first side plate 12 and the second side plate 13 are bent inward into the open end 31 to form a bending limiting end 14.

[0054] Step S2: One end of the bottom panel 11 is vertically bent to form a first vertical plate 111, and the other end is vertically bent to form a second vertical plate 112;

[0055] Step S3: A plurality of third receiving grooves 123 are punched out on the first side plate 12 and the second side plate 13. The first protrusions 151 on the first partition 15 and the second partition 25 are inserted into the third receiving grooves 123. The first protrusions 151 are inserted into the third receiving grooves 123 with interference fit, thus completing the assembly of the first partition 15 and the second partition 25.

[0056] Step S4: Several fourth receiving grooves 113 are stamped on the bottom panel 11, and the second protrusion 91 on the heat dissipation baffle 9 is inserted into the fourth receiving groove 113; one end of the heat dissipation baffle 9 is welded to the first vertical plate 111, and the other end is welded to the second vertical plate 112.

[0057] Step S5: First receiving grooves 121 are punched out at both ends of the first side plate 12 and the second side plate 13; the fixed connecting piece 122 can be interference-fitted into the first receiving groove 121 to ensure fixed connection together;

[0058] Step S6: The PCB board 22 is equipped with plug-in LED beads. The PCB board 22 is electrically connected to the power line 7. A thermal conductive silicone pad 23 is attached to the lower part of the PCB board 22. The PCB board 22 is attached and fixed to the bottom panel 11 by the thermal conductive silicone pad 23 and is fixed and limited by the second slot 17.

[0059] Step S7: The diffuser plate 4 is first inserted into the first slot 16, and then inserted into the second receiving groove 52. The first end plate 5 and the second end plate 6 fix the two ends of the diffuser plate 4. The power cord 7 is placed inside the U-shaped groove 53. The ends of the PCB board 22 and the thermal conductive silicone pad 23 are inserted into the fifth receiving groove 55.

[0060] Step S8: The first end plate 5 and the first vertical plate 111 are fixedly connected together by bolts 51, the second end plate 6 and the second vertical plate 112 are fixedly connected together by bolts 51, and the first end plate 5 and the second end plate 6 are both fixedly connected together by bolts 51 to the fixed connecting piece 122.

[0061] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A strip light source with a sheet metal housing, characterized in that: The device includes a sheet metal housing (1) with a U-shaped cross-section and an internal cavity (3) for accommodating several LED beads (2). One side of the cavity (3) is an open end (31). The sheet metal housing (1) includes a bottom panel (11), a first side plate (12) mounted on one side of the bottom panel (11), and a second side plate (13) mounted on the other side of the bottom panel (11). The LED beads (2) are mounted on the bottom panel (11), and several LED beads (2) are mounted on the lower part of the bottom panel (11). The heat dissipation partitions (9) are arranged at intervals. The ends of the first side plate (12) and the second side plate (13) are bent inward toward the open end (31) to form a bending limiting end (14). The first side plate (12) and the second side plate (13) are both equipped with a first partition (15). A first slot (16) is formed between the bending limiting end (14) and the first partition (15). A diffuser plate (4) is installed inside the first slot (16). The light emitted by the lamp bead (2) passes through the diffuser plate (4) and the open end (31) and shines outward.

2. A strip light source with a sheet metal housing according to claim 1, characterized in that: The sheet metal shell (1) is provided with a first end plate (5) on one side and a second end plate (6) on the other side; the bottom panel (11) is bent vertically at one end to form a first vertical plate (111) and bent vertically at the other end to form a second vertical plate (112). The first end plate (5) and the first vertical plate (111) are fixedly connected together by bolts (51), and the second end plate (6) and the second vertical plate (112) are fixedly connected together by bolts (51). The first end plate (5) and the second end plate (6) seal both ends of the receiving chamber (3).

3. A strip light source with a sheet metal housing according to claim 2, characterized in that: Both ends of the first side plate (12) and the second side plate (13) are provided with a first receiving groove (121). The first receiving groove (121) is equipped with a fixing connecting piece (122). The first end plate (5) and the second end plate (6) are fixedly connected to the fixing connecting piece (122) by bolts (51).

4. A strip light source with a sheet metal housing according to claim 2, characterized in that: The lamp bead (2) is also electrically connected to a power line (7), which provides power to the lamp bead (2) and drives the light emitted by the lamp bead (2). The first end plate (5) is provided with a U-shaped groove (53), which is used to accommodate the power line (7).

5. A strip light source with a sheet metal housing according to claim 2, characterized in that: The first end plate (5) and the second end plate (6) are provided with a second receiving groove (52) on their inner sides, and both ends of the diffuser plate (4) are inserted into the second receiving groove (52).

6. A strip light source with a sheet metal housing according to claim 1, characterized in that: Reflective paper is attached to the first side plate (12) and the second side plate (13) to reflect the light emitted by the lamp beads (2).

7. A strip light source with a sheet metal housing according to claim 1, characterized in that: The LED (2) is a surface mount LED, which is attached to the bottom panel (11) using thermally conductive adhesive.

8. A strip light source with a sheet metal housing according to claim 4, characterized in that: The LED bead (2) is a plug-in LED bead, which is inserted into the lower PCB board (22). The PCB board (22) is electrically connected to the power line (7). The PCB board (22) is in contact with the bottom panel (11) through the lower thermal conductive silicone pad (23). The first side panel (12) and the second side panel (13) are both equipped with a second partition (25). A second slot (17) is formed between the second partition (25) and the bottom panel (11). The PCB board (22) and the thermal conductive silicone pad (23) are installed inside the second slot (17).

9. A strip light source with a sheet metal housing according to claim 8, characterized in that: The first partition (15) and the second partition (25) are arranged in parallel. The first partition (15) and the second partition (25) are provided with a plurality of first protrusions (151), and the first protrusions (151) are arranged in sequence at intervals. The first side plate (12) and the second side plate (13) are provided with third receiving grooves (123) that are adapted to the first protrusions (151), and the first protrusions (151) are inserted into the third receiving grooves (123).

10. A strip light source with a sheet metal housing according to claim 2, characterized in that: One end of the heat dissipation partition (9) is connected to the first vertical plate (111), and the other end is connected to the second vertical plate (112); the heat dissipation partition (9) is provided with a plurality of second protrusions (91), which are arranged in sequence at intervals; the bottom panel (11) is provided with a fourth receiving groove (113) that is adapted to the second protrusions (91), and the second protrusions (91) are inserted into the fourth receiving groove (113).

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