Fluorescent lamp

Abstract

The utility model discloses a fluorescent lamp which comprises a lamp shell and plugs arranged at two ends of the lamp shell, the plugs are provided with threading holes, and the fluorescent lamp is characterized in that a plurality of rib plates protruding upwards are arranged on the left side and the right side of the back of the lamp shell, the rib plates extend in the length direction of the lamp shell, and a glue groove is formed between every two adjacent rib plates. A circuit board is arranged in the glue groove in a gluing and bonding mode, a plurality of lamp beads are arranged on the front face of the circuit board, and cooling fins are arranged on the back face of the circuit board. When the fluorescent lamp works, heat emitted by the lamp beads is directly transmitted to the outside through the circuit board and the cooling fins, the heat conduction link is reduced, heat resistance is lower, heat dissipation is facilitated, and the heat dissipation effect of the fluorescent lamp is better.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a fluorescent lamp. Background Art

[0002] Existing fluorescent lamps usually include a lamp housing, a plug, a circuit board and lamp beads. For example, the Chinese utility model patent with application number CN202320131409.1 discloses an LED fluorescent lamp tube with adjustable light output angle, including a lamp tube, an LED lamp board installed in the lamp tube, end caps covering both ends of the lamp tube and pins plugged into the end caps. The end caps include a cylindrical cover body and a circular cover bottom. The cover body has openings at both ends, one end of which is a connecting end and the other end is a bottom end; the inner side of the bottom end is provided with multiple The cover body has a plurality of circumferentially arranged latches, and a rib extending along the circumference of the cover body is provided on the inner side surface of the bottom end, located inside the latches. The inner side of the cover bottom is provided with a positioning post and an undercut that respectively cooperate with the latches and the ribs. The pin is plugged into the cover bottom and electrically connected to the LED light board via a wire. The connecting end of the cover body is fixed to the lamp tube, and the cover bottom is sealed on the bottom opening of the cover body. The undercut of the cover bottom is hooked on the inner side of the rib of the cover body. The cover bottom can rotate relative to the cover body and can be locked into the latches of the cover body by its positioning post to position the two. In actual use, the heat generated by the LED light board of this type of fluorescent lamp can only be dissipated through the lamp tube, which has a poor heat dissipation effect. A large amount of heat remains in the lamp tube, causing the temperature inside the lamp tube to increase. Some fluorescent lamps also have a heat dissipation structure on the shell, but this structure has many heat conduction links, high thermal resistance, and poor heat dissipation effect. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a fluorescent lamp with better heat dissipation effect.

[0004] To this end, the present invention is achieved by adopting the following technical solutions:

[0005] A fluorescent lamp comprises a lamp housing and plugs provided at both ends of the lamp housing, wherein the plugs are provided with threading holes. The lamp housing is characterized in that: a plurality of upwardly protruding ribs are provided on both left and right sides of the back, the ribs extending along the length of the lamp housing, and glue grooves are formed between adjacent ribs. A circuit board is glued and installed in the glue grooves, a plurality of lamp beads are provided on the front of the circuit board, and a heat sink is provided on the back of the circuit board.

[0006] Furthermore, the heat sink is provided with a plurality of upwardly protruding ribs, and the ribs are provided with heat dissipation through holes along their length directions.

[0007] Furthermore, the heat sink is an integrally formed metal sheet, and the convex strips are straight or wavy.

[0008] Furthermore, baffles are provided on both left and right ends of the back of the lamp housing to block the circuit board and the lower part of the heat sink. There are two ribs, and glue grooves are formed between adjacent ribs. The same glue grooves are formed between the outer ribs and the baffles.

[0009] Furthermore, a card slot is provided on the outer side of the baffle along the length direction of the lamp housing, and the lamp housing is detachably provided with multiple elastic mounting brackets, the elastic mounting brackets include a flat plate, and downward-bent vertical plates are provided at the left and right ends of the flat plate, and a bent card that can be inserted into the card slot is provided at the lower part of the vertical plate, and multiple mounting holes are provided on the flat plate.

[0010] Furthermore, the back of the lamp housing is provided with a plurality of rectangular light-transmitting through holes aligned with the lamp beads, and the rectangular light-transmitting through holes are aligned with multiple rows and columns of lamp beads.

[0011] Furthermore, the back of the lamp housing is provided with a plurality of strip-shaped light-transmitting through holes aligned with the lamp beads, and the strip-shaped light-transmitting through holes are aligned with a row of lamp beads.

[0012] Furthermore, the back of the lamp housing is provided with a plurality of light-transmitting through holes corresponding one-to-one to the lamp beads.

[0013] Furthermore, the heat sink is bonded to the circuit board by glue.

[0014] Furthermore, the circuit board is an aluminum substrate, which is composed of a conductive layer, an insulating layer and an aluminum plate from top to bottom, and the heat sink and the aluminum plate are welded by laser.

[0015] After adopting the above technical solution, multiple upwardly protruding ribs are provided on the left and right sides of the back of the lamp housing. The ribs extend along the length direction of the lamp housing, and glue grooves are formed between adjacent ribs. The circuit board is glued and set in the glue groove. A heat sink is provided on the back of the circuit board, and then sealed with a plug. The heat sink is directly set on the back of the circuit board. When the fluorescent lamp is working, the heat emitted by the lamp beads is directly transferred to the outside through the circuit board and the heat sink, reducing the heat conduction link, lowering the thermal resistance, facilitating heat dissipation, and making the heat dissipation effect of the fluorescent lamp better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model has the following drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model with the plug removed;

[0019] Figure 3 This is a schematic diagram of the structure of the utility model without the plug;

[0020] Figure 4This is a schematic structural diagram of the first embodiment of the lamp housing of the present invention (the length direction of the lamp housing is omitted);

[0021] Figure 5 This is a schematic structural diagram of a second embodiment of the lamp housing of the present invention (the length direction of the lamp housing is omitted);

[0022] Figure 6 This is a schematic structural diagram of a third embodiment of a lamp housing according to the present invention (the length direction of the lamp housing is omitted).

[0023] Figure numerals: 1, lamp housing; 2, plug; 3, threading hole; 4, rib; 5, glue groove; 6, circuit board; 7, lamp bead; 8, heat sink; 9, convex strip; 10, heat dissipation hole; 11, baffle; 12, card slot; 13, elastic mounting bracket; 14, flat plate; 15, vertical plate; 16, bent card; 17, mounting hole; 18, rectangular light-transmitting through hole; 19, strip light-transmitting through hole; 20, light-transmitting through hole. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0025] With reference to the above-mentioned drawings, a fluorescent lamp provided by the present invention includes a lamp housing 1 and plugs 2 provided at both ends of the lamp housing 1, the plug 2 being provided with a threading hole 3, and characterized in that: a plurality of upwardly protruding ribs 4 are provided on both sides of the back of the lamp housing 1, the ribs 4 extending along the length direction of the lamp housing 1, and glue grooves 5 are formed between adjacent ribs 4, a circuit board 6 is glued and set by gluing in the glue grooves 5, a plurality of lamp beads 7 are provided on the front of the circuit board 6, a heat sink 8 is provided on the back of the circuit board 6, the heat sink 8 is provided with a plurality of upwardly protruding ribs 9, and the ribs 9 are provided with heat dissipation through-holes 10 along their length direction, the heat sink 8 is an integrally formed metal sheet, the ribs 9 are straight or wavy, and the left and right ends of the back of the lamp housing 1 are provided with a shielding material to block the circuit board 6 and the heat sink 8. The baffle 11 at the top, the ribs 4 are two in number, and glue grooves 5 are formed between adjacent ribs 4. The same glue grooves 5 are formed between the outer ribs 4 and the baffle 11. A card slot 12 is provided on the outside of the baffle 11 along the length direction of the lamp housing 1. The lamp housing 1 is detachably provided with multiple elastic mounting brackets 13. The elastic mounting bracket 13 includes a flat plate 14. The left and right ends of the flat plate 14 are provided with downwardly bent vertical plates 15. The lower part of the vertical plate 15 is provided with a bent card 16 that can be inserted into the card slot 12. A plurality of mounting holes 17 are provided on the flat plate 14. The heat sink 8 is bonded to the circuit board 6 by glue. The circuit board 6 is an aluminum substrate, which is composed of a conductive layer, an insulating layer and an aluminum plate from top to bottom (the orientation when the lamp beads 7 are facing upward). The lamp beads 7 are electrically connected to the conductive layer, and the heat sink 8 and the aluminum plate are laser welded.

[0026] The heat dissipation of the fluorescent lamp is improved by the heat dissipation of the heat dissipation fins 8. The heat sink 8 can be bonded to the circuit board 6 by glue, and the heat sink 8 and the aluminum substrate type circuit board 6 can be welded by laser welding, and the two are in direct contact, which further reduces the heat conduction link and makes the heat dissipation effect of the fluorescent lamp better.

[0027] Reference Figure 4 As shown, this is a first embodiment of the lamp housing 1 of the present invention. The back of the lamp housing 1 is provided with a plurality of rectangular light-transmitting holes 18 aligned with the lamp beads 7 . The rectangular light-transmitting holes 18 are aligned with multiple rows and columns of the lamp beads 7 .

[0028] Reference Figure 5 As shown, it is a second embodiment of the lamp housing 1 of the present invention. The back of the lamp housing 1 is provided with a plurality of strip-shaped light-transmitting holes 19 aligned with the lamp beads 7 , and the strip-shaped light-transmitting holes 19 are aligned with a row of lamp beads 7 .

[0029] Reference Figure 6 FIG. 1 shows a third embodiment of a lamp housing 1 of the present invention. The back of the lamp housing 1 is provided with a plurality of light-transmitting holes 20 corresponding to the lamp beads 7 on a one-to-one basis.

[0030] The above three embodiments provide a variety of different lamp housings 1, which are adapted according to the density of the arrangement of the lamp beads 7. If the heat dissipation requirement is high, rectangular light-transmitting holes 18 are used, and if the heat dissipation requirement is low, one-to-one corresponding light-transmitting holes are used to meet the different heat dissipation requirements of different fluorescent lamps, and the applicability is stronger.

Claims

1. A fluorescent lamp comprising a lamp housing and plugs provided at both ends of the lamp housing, wherein the plugs are provided with threading holes, and wherein: A plurality of upwardly protruding ribs are provided on both sides of the back of the lamp housing. The ribs extend along the length of the lamp housing. Glue grooves are formed between adjacent ribs. A circuit board is glued and set in the glue grooves. A plurality of lamp beads are provided on the front of the circuit board, and a heat sink is provided on the back of the circuit board.

2. A fluorescent lamp according to claim 1, characterized in that: The heat sink is provided with a plurality of upwardly protruding ribs, and the ribs are penetrated by heat dissipation holes along the length direction thereof.

3. A fluorescent lamp according to claim 2, characterized in that: The heat sink is an integrally formed metal sheet, and the convex strips are straight or wavy.

4. A fluorescent lamp according to claim 1, 2 or 3, characterized in that: Baffles are provided on both left and right ends of the back of the lamp housing to block the circuit board and the lower part of the heat sink. There are two ribs, and glue grooves are formed between adjacent ribs. The same glue grooves are formed between the outer ribs and the baffles.

5. A fluorescent lamp according to claim 4, characterized in that: A card slot is provided on the outside of the baffle along the length direction of the lamp housing. The lamp housing is detachable and has multiple elastic mounting brackets. The elastic mounting brackets include a flat plate with downward-bent vertical plates at the left and right ends. A bent card that can be inserted into the card slot is provided at the lower part of the vertical plate. Multiple mounting holes are provided on the flat plate.

6. The fluorescent lamp according to claim 4, characterized in that: The back of the lamp housing is provided with a plurality of rectangular light-transmitting through holes aligned with the lamp beads, and the rectangular light-transmitting through holes are aligned with the multiple rows and columns of lamp beads.

7. The fluorescent lamp according to claim 4, characterized in that: The back of the lamp housing is provided with a plurality of strip-shaped light-transmitting through holes aligned with the lamp beads, and the strip-shaped light-transmitting through holes are aligned with a row of lamp beads.

8. The fluorescent lamp according to claim 4, characterized in that: The back of the lamp housing is provided with a plurality of light-transmitting through holes corresponding to the lamp beads one by one.

9. A fluorescent lamp according to claim 2 or 3, characterized in that: The heat sink is bonded to the circuit board by glue.

10. A fluorescent lamp according to claim 2 or 3, characterized in that: The circuit board is an aluminum substrate, which consists of a conductive layer, an insulating layer and an aluminum plate from top to bottom. The heat sink and the aluminum plate are welded by laser.

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