Cylinder lamp

Abstract

The utility model discloses a cylindrical lamp which comprises a light-emitting part, a radiator and an electronic assembly, a through hole is formed in the center of the radiator, the radiator is cylindrical, the radiator is formed by bending a sheet-shaped elastic metal radiating fin, and long-strip-shaped protrusions which are regularly distributed at intervals are formed on the radiating fin in a stamping mode. The light-emitting part comprises a flexible substrate, the flexible substrate is arranged on the outer surface of the cylindrical radiator in a surrounding mode, and a light-emitting chip is arranged on the flexible substrate. The two ends of a cylinder body formed by the radiator and the light-emitting part are connected with an annular end sleeve and an annular shell in a sleeved mode respectively, and the annular end sleeve, a through hole in the center of the radiator and the annular shell form a smooth radiating channel. According to the cylindrical lamp, the heat dissipation channel located on the axis is integrally formed, the heat dissipation channel and the light-emitting chip on the outer side are only separated from the flexible substrate, meanwhile, convection occurs between air in the heat dissipation channel in the cylindrical lamp and outside air, more heat can be taken away, and the heat dissipation structure does not affect the situation that the outer side face of the cylinder occupying the largest area forms a light-emitting face.

Description

Technical Field

[0001] The utility model relates to a cylindrical lamp. Background Art

[0002] The utility model patent with patent number 202420816813.7 discloses a multifunctional cylindrical lamp with a modular design, including a lamp tube, an electronic module, an optical module and a reflective cup module. The electronic module and the optical module are electrically connected and arranged in the lamp tube. The reflective cup module is installed at the front end of the lamp tube, and an upper cover is installed at the rear end of the lamp tube. An external screw thread stud is provided in the center of the upper cover. The external screw thread stud is a hollow column. The power cord passes through the external screw thread stud and is connected to the electronic module in the lamp tube; a dial switch for adjusting the color temperature and power of the lamp is provided in the electronic module, and the handle of the dial switch is exposed from the dial hole of the upper cover; and also includes mounting accessories, which are threadedly connected to the external screw thread stud to achieve the installation of the lamp. The utility model adopts a modular structure, the color temperature and power are externally adjustable, the light output angle is adjustable, and suitable mounting accessories can be matched according to the installation method, so that the relatively complex structure becomes extremely simple and easy to install. Combined with the specification and appendix of the utility model patent Figure 1 It can be seen that the electronic components of the multifunctional cylindrical lamp are all arranged in the cylindrical cover, and no heat dissipation channel is formed along the axis inside. Therefore, its heat dissipation capacity is weak and it is difficult to carry high power under the same volume. 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 cylindrical lamp, which has a heat dissipation channel formed on the axis line and passes through the cylindrical lamp body, and has a stronger heat dissipation capacity.

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

[0005] A cylindrical lamp comprises a light-emitting element, a heat sink, an electronic component, and a cylindrical transparent cover. The lamp is characterized in that: the heat sink has a through hole at its center and is cylindrical in shape; the heat sink is formed by bending a sheet of elastic metal heat sink, on which regularly spaced long strip-shaped protrusions are stamped, and corresponding long strip-shaped grooves are formed on the back of the protrusions; the light-emitting element comprises a flexible substrate, which is arranged around the outer surface of the cylindrical heat sink; a light-emitting chip is provided on the flexible substrate, and the light-emitting chip is connected to the electronic component via the flexible substrate; the cylindrical transparent cover is sleeved over the outer side of the flexible substrate with the light-emitting chip; the ends of the cylindrical body formed by the heat sink, the light-emitting element, and the cylindrical transparent cover are respectively sleeved with annular end sleeves and an annular shell; the electronic component is arranged in the annular shell; the annular end sleeves, the through hole in the center of the heat sink, and the annular shell form a smooth heat dissipation channel.

[0006] Preferably, the annular end sleeve includes a first annular embedding groove, which is sleeved on the cylindrical main body and glued at the fitting point; the annular shell includes an annular shell and an outer shell, the annular shell has a second annular embedding groove, the second annular embedding groove is sleeved on the cylindrical main body and glued at the fitting point, the outer shell is sleeved and connected to the annular shell, the outer end of the second annular embedding groove has a wiring through hole, the wire connecting the electronic component passes through the wiring through hole and is connected to the circuit layer on the flexible substrate, the electronic component includes a driving circuit and a control module, and the electronic component is arranged in the placement cavity between the outer shell and the annular shell.

[0007] Preferably, the outer surface of the annular shell has an external thread, and the outer shell is threadedly connected to the annular shell.

[0008] Preferably, one side of the long strip groove of the heat sink faces outward and is in contact with the flexible substrate, and the long strip protrusion of the heat sink faces inward.

[0009] Preferably, heat dissipation grooves distributed at equal distances are formed between the long strip-shaped protrusions of the heat sink.

[0010] Preferably, annular pads are provided between the two ends of the cylindrical transparent cover and the heat sink, and the annular pads are glued and fixed on the inner side surface of the cylindrical transparent cover.

[0011] Preferably, a fan is provided at the inner hole of the annular shell, and the fan is connected to the control circuit of the electronic component.

[0012] The above technical solution achieves the following beneficial effects: the cylindrical lamp forms a heat dissipation channel centered on its axis. This channel is separated from the outer light-emitting chip by only a flexible substrate, allowing heat to be quickly transferred to the heat sink. Simultaneously, air in the internal heat dissipation channel circulates with the external air, removing even more heat. Furthermore, this heat dissipation structure does not affect the outer surface of the cylinder, which occupies the largest area and forms the light-emitting surface. Furthermore, the excellent heat dissipation capacity created by the internal heat dissipation channel along the axis facilitates the production of cylindrical lamps with higher brightness, a wider illumination area, and a smaller size. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model has the following drawings:

[0014] Figure 1 This is a cross-sectional schematic diagram of the cylindrical lamp provided by the utility model.

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the radiator.

[0016] Figure 3 for Figure 1 Schematic side view of .

[0017] Figure 4 for Figure 3 Schematic diagram of the structural cross-section. DETAILED DESCRIPTION

[0018] 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.

[0019] Reference Figure 1-4 As shown, the utility model provides a cylindrical lamp, including a light-emitting element, a heat sink 1, an electronic component and a cylindrical transparent cover 2. The heat sink 1 has a through hole 14 in the center and is cylindrical. The heat sink 1 is formed by bending a sheet of elastic metal heat sink. Long strip-shaped protrusions 11 with regular intervals are stamped on the heat sink, and long strip-shaped grooves 12 are formed on the back of the protrusions. One side of the long strip-shaped groove 12 of the heat sink 1 faces outward and fits with the flexible substrate 3. The long strip-shaped protrusions 11 of the heat sink 1 face inward, and heat dissipation grooves 13 with equal distances are formed between the long strip-shaped protrusions 11 of the heat sink 1; the light-emitting element includes a flexible substrate 3, which is arranged around the outer surface of the cylindrical heat sink 1. On the surface, a light-emitting chip 4 is provided on the flexible substrate 3, and the light-emitting chip 4 is connected to the electronic component through the flexible substrate 3. The cylindrical transparent cover 2 is sleeved on the outer side of the flexible substrate 3 with the light-emitting chip 4. An annular pad 6 is sleeved between the two ends of the cylindrical transparent cover 2 and the radiator 1. The annular pad 6 is glued and fixed on the inner side of the cylindrical transparent cover 2. This structure is conducive to reducing the heat conduction to the cylindrical transparent cover 2; the two ends of the cylindrical body composed of the radiator 1, the light-emitting element and the cylindrical transparent cover 2 are respectively sleeved with an annular end sleeve 7 and an annular shell 8, and the electronic component is arranged in the annular shell 8. The annular end sleeve 7, the through hole 14 in the center of the radiator 1 and the annular shell 8 form an unobstructed heat dissipation channel.

[0020] Reference Figure 1 、 4In order to form a more secure socket, the annular end sleeve 7 includes a first annular embedding groove 71, which is socketed with the cylindrical body and glued at the fitting position; the annular shell 8 includes an annular shell 81 and an outer shell 82, the annular shell 81 has a second annular embedding groove 83, the second annular embedding groove 83 is socketed on the cylindrical body and glued at the fitting position, the outer shell 82 is socketed and connected to the annular shell 81, in this embodiment, the outer surface of the annular shell 81 has an external thread, and the outer shell 82 is threadedly connected to the annular shell 81, and the outer end of the second annular embedding groove 83 has a wiring through-hole 84, and the wire connecting the electronic component passes through the wiring through-hole 84 and is connected to the circuit layer on the flexible substrate 3, and the circuit layer is made of copper foil. The electronic component includes a drive circuit and a control module, and the electronic component is arranged in the placement cavity 85 between the outer shell and the annular shell.

[0021] On the basis of the above embodiment, in order to enhance the active heat dissipation performance, a fan is provided at the inner hole of the annular shell, and a control circuit of the fan and the electronic component is provided.

[0022] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. The above preferred embodiment of the present invention does not limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments of the technical contents disclosed above without departing from the scope of the technical solution of the present invention. Any simple modification, equivalent change and modification made to the above embodiment by the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A cylindrical lamp comprising a light emitting element, a heat sink, an electronic component and a cylindrical transparent cover, characterized in that: The radiator has a through hole in the center and is cylindrical in shape. The radiator is formed by bending a sheet of elastic metal heat sink. Long strip-shaped protrusions are stamped on the heat sink at regular intervals, and corresponding long strip-shaped grooves are formed on the back of the protrusions. The light-emitting component includes a flexible substrate, which is arranged around the outer surface of the cylindrical radiator. A light-emitting chip is arranged on the flexible substrate. The light-emitting chip is connected to the electronic component through the flexible substrate. The cylindrical transparent cover is sleeved on the outer side of the flexible substrate with the light-emitting chip. The two ends of the cylindrical body composed of the radiator, the light-emitting component and the cylindrical transparent cover are respectively sleeved with annular end sleeves and annular shells. The electronic component is arranged in the annular shell. The annular end sleeves, the through hole in the center of the radiator and the annular shell form a smooth heat dissipation channel.

2. The cylindrical lamp according to claim 1, wherein: The annular end sleeve includes a first annular embedding groove, which is sleeved on the cylindrical body and glued at the fitting point; the annular shell includes an annular shell and an outer shell, the annular shell has a second annular embedding groove, the second annular embedding groove is sleeved on the cylindrical body and glued at the fitting point, the outer shell is sleeved and connected to the annular shell, the outer end of the second annular embedding groove has a wiring through hole, the wire connecting the electronic component passes through the wiring through hole and is connected to the circuit layer on the flexible substrate, the electronic component includes a drive circuit and a control module, and the electronic component is arranged in the placement cavity between the outer shell and the annular shell.

3. The cylindrical lamp according to claim 2, wherein: The outer surface of the annular shell is provided with external threads, and the outer shell is threadedly connected to the annular shell.

4. The cylindrical lamp according to claim 1, 2 or 3, characterized in that: One side of the long strip groove of the radiator faces outward and is in contact with the flexible substrate, and the long strip protrusion of the radiator faces inward.

5. The cylindrical lamp according to claim 1, 2 or 3, characterized in that: Heat dissipation grooves distributed at equal distances are formed between the long strip-shaped protrusions of the radiator.

6. The cylindrical lamp according to claim 1, 2 or 3, characterized in that: Annular pads are sleeved between the two ends of the cylindrical transparent cover and the radiator, and the annular pads are glued and fixed on the inner side surface of the cylindrical transparent cover.

7. The downlight according to claim 4, characterized in that: Annular pads are sleeved between the two ends of the cylindrical transparent cover and the radiator, and the annular pads are glued and fixed on the inner side surface of the cylindrical transparent cover.

8. The downlight according to claim 5, characterized in that: Annular pads are sleeved between the two ends of the cylindrical transparent cover and the radiator, and the annular pads are glued and fixed on the inner side surface of the cylindrical transparent cover.

9. The cylindrical lamp according to claim 1, 2 or 3, characterized in that: A fan is provided at the inner hole of the annular shell, and the fan is connected to the control circuit of the electronic component.

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