LED lamp

Abstract

The utility model discloses an LED (light-emitting diode) lamp, which comprises a lamp shell and a lamp cover, wherein the lamp shell is provided with a mounting cavity; a plurality of lamp beads and an electronic component set for controlling the lamp beads are integrated on the circuit board, the circuit board can be folded and arranged in the mounting cavity, and the lamp beads can penetrate through the lamp shell to irradiate outwards; the circuit board can be rolled into a corresponding shape and size according to the size of the mounting cavity, and is directly mounted in the mounting cavity, so that the assembly efficiency is high, and the circuit board can be applied to different lamp housings; the occupied space of the folded circuit board in the space length or width direction can be reduced to a great extent.

Description

Technical Field

[0001] The utility model relates to a lamp, in particular to an LED lamp. Background Art

[0002] Some existing LED bulb lamps are internally installed with multiple lamp strips for illumination. During assembly, the lamp strips need to be installed into the interior of the lamp housing one by one, and then each lamp strip is connected to the control board. Such assembly operations are cumbersome and the production and assembly efficiency is low. Content of the Utility Model

[0003] The utility model aims to solve at least one of the above technical problems in the related art to a certain extent. For this purpose, the utility model provides an LED lamp.

[0004] To achieve the above object, the technical solution of the utility model is as follows:

[0005] The LED lamp according to the first aspect embodiment of the utility model includes:

[0006] A lamp housing provided with an installation cavity;

[0007] A flexible circuit board, on which a plurality of lamp beads and an electronic component group for controlling the lamp beads are integrated. The circuit board can be folded and placed in the installation cavity, and the lamp beads can irradiate outward through the lamp housing.

[0008] The LED lamp according to the embodiment of the utility model has at least the following beneficial effects: The circuit board can be folded into a corresponding shape and size according to the size of the installation cavity, and directly installed into the installation cavity, with high assembly efficiency, and can be applied to different lamp housings for use; the folded circuit board can greatly reduce the occupancy in the spatial length or width direction.

[0009] According to some embodiments of the utility model, the installation cavity is in a hollow cylindrical shape, and the circuit board is folded into a cylindrical shape adapted to the shape of the installation cavity.

[0010] According to some embodiments of the utility model, a plurality of lamp grooves are provided on the inner wall of the installation cavity. The lamp grooves are parallel to each other and distributed along the circumferential direction of the installation cavity. A plurality of the lamp beads are distributed on the circuit board to form multiple groups of parallel lamp rows, and each group of the lamp rows is inserted into the lamp grooves one by one.

[0011] According to some embodiments of the utility model, the circuit board includes a first board area and a second board area. A plurality of the lamp beads are distributed and integrated on the first board area, and the electronic component group is distributed and integrated on the second board area. The first board area is folded into a cylindrical shape with the lamp beads facing outward, and the second board area is bent relative to the first board area and placed in the inner cavity formed by the folding of the first board area.

[0012] According to some embodiments of the present utility model, the circuit board further includes a third board area, which is bent relative to the first board area and located at the end of the inner cavity. The lamp beads are provided on the third board area, and the end of the third board area faces the lamp housing.

[0013] According to some embodiments of the present utility model, a plurality of first heat dissipation holes are formed in the circuit board, and a plurality of second heat dissipation holes are formed in the lamp housing. The positions of the first heat dissipation holes and the second heat dissipation holes are opposite to each other.

[0014] According to some embodiments of the present utility model, both the first heat dissipation holes and the second heat dissipation holes are strip-shaped and are aligned in pairs.

[0015] According to some embodiments of the present utility model, it further includes an electrical connector, which is installed on the lamp housing, and the circuit board is electrically connected to the electrical connector.

[0016] According to some embodiments of the present utility model, the installation cavity has a closed end and an open end with opposite positions, and the electrical connector is installed on the open end.

[0017] According to some embodiments of the present utility model, the thickness of the circuit board is 0.73 mm.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0020] Figure 1 is a schematic exploded view of the structure of the present utility model;

[0021] Figure 2 is Figure 1 an assembly schematic diagram of

[0022] Figure 3 is a schematic structural diagram of the lamp housing;

[0023] Figure 4 is a schematic diagram of the circuit board before being rolled and folded;

[0024] Figure 5 is a schematic diagram of the circuit board after being rolled and folded;

[0025] Figure 6 is Figure 5 another perspective schematic diagram of

[0026] Figure 7It is a top view of the lamp housing and the circuit board in cooperation;

[0027] Figure 8 It is a schematic diagram of another embodiment of the LED lamp;

[0028] Figure 9 It is a schematic diagram of another embodiment of the LED lamp;

[0029] Figure 10 It is a schematic diagram of another embodiment of the LED lamp.

[0030] Reference numerals: lamp housing 100; installation cavity 110; closed end 111; open end 112; lamp groove 120; second heat dissipation hole 130; circuit board 200; first board area 201; second board area 202; third board area 203; lamp beads 210; lamp row 211; electronic component group 220; inner cavity 230; first heat dissipation hole 240; electrical connector 300. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] The present invention relates to an LED lamp, including a lamp housing 100 and a circuit board 200.

[0033] As Figure 1 、 Figure 2 and Figure 3 shown, an installation cavity 110 is provided inside the lamp housing 100. As Figure 4 shown, the circuit board 200 is in a flat plate shape when unfolded. The circuit board 200 is integrated with an electronic component group 220 and a plurality of lamp beads 210. The electronic component group 220 includes components such as capacitors, resistors, and power supplies. The electronic component group 220 forms a control circuit on the circuit board 200 for controlling each lamp bead 210. Among them, the circuit board 200 is an aluminum substrate with a certain flexibility, and the circuit board 200 can be folded. It should be noted that the folding can be operations such as bending, curving, and folding that cause the circuit board 200 to deform to a certain extent. The folded circuit board 200 does not affect the normal operation of the lamp beads 210 and the electronic components. As Figure 1 、 Figure 5 and Figure 7As shown, the circuit board 200 is folded according to the volume of the installation cavity 110 into a corresponding size, and then the circuit board 200 is placed into the installation cavity 110. The circuit board 200 can be electrically connected to an external power supply device through a wire. When each light-emitting diode (LED) 210 starts to illuminate, the generated light irradiates outward through the lamp housing 100. During assembly, unlike a conventional lamp body where the lamp strip and the controller need to be installed one by one, by utilizing the flexible characteristics of the circuit board 200, the circuit board 200 can be folded into a corresponding shape and size according to the size of the installation cavity 110 and directly installed into the installation cavity 110, with high assembly efficiency and can be applied to different lamp housings 100 for use; the folded circuit board 200 can greatly reduce the occupancy in the spatial length or width direction.

[0034] The lamp housing 100 can be set in different shapes, such as cylindrical, box-shaped, bulb-shaped, etc. In some specific embodiments of the present invention, as Figure 3 and Figure 5 shown, the installation cavity 110 is in a hollow cylindrical shape, and this cylindrical shape can be a cylindrical shape, a prismatic shape, etc. The circuit board 200 is folded into a cylindrical shape adapted to the shape of the installation cavity 110. In this embodiment, the installation cavity 110 is cylindrical, and correspondingly, the circuit board 200 is folded into a cylindrical shape. After folding, each LED 210 can be distributed on the outer side surface of the cylindrical circuit board 200.

[0035] Furthermore, as Figure 3 、 Figure 5 and Figure 7 shown, a plurality of lamp grooves 120 are provided on the inner wall of the installation cavity 110. The lamp grooves 120 extend in a long strip shape along the axial direction of the lamp housing 100. Each of the lamp grooves 120 is parallel to each other and is distributed along the circumferential direction of the installation cavity 110. The LEDs 210 on the circuit board 200 are arranged in an array. As Figure 3 、 Figure 4 、 Figure 5 and Figure 7 shown, the LEDs 210 in the same column form a lamp column 211, each of the lamp columns 211 is parallel to each other, and each group of lamp columns 211 can include the same or different numbers of LEDs 210. The number of lamp columns 211 is paired with the number of lamp grooves 120. After the circuit board 200 is folded, the lamp columns 211 are arranged along the axial direction of the cylindrical circuit board 200, and each of the lamp columns 211 is distributed along the circumferential direction of the cylindrical circuit board 200. When the circuit board 200 is placed into the installation cavity 110, each group of lamp columns 211 is paired with a lamp groove 120 in terms of position, and the lamp columns 211 are inserted into the lamp grooves 120 along the axial direction. The side walls of the lamp grooves 120 are used to position the lamp columns 211, restricting the circuit board 200 from rotating relative to the installation cavity 110 around the axial direction, thereby positioning the circuit board 200. At the same time, each of the LEDs 210 on the lamp columns 211 irradiates outward through the lamp housing 100 at the position corresponding to the lamp grooves 120. The lamp housing 100 is made of a light-transmissive material.

[0036] Specifically, as shown in Figure 4 , Figure 5 and Figure 6 , the circuit board 200 is partitioned, including a first board area 201 and a second board area 202. In this embodiment, the first board area 201 and the second board area 202 are integrated and in the shape of a rectangular board. A plurality of lamp beads 210 are integrally distributed on the first board area 201. The electronic component group 220 is distributed and integrated on the second board area 202. During installation, the first board area 201 is folded to form a cylinder. The cylindrical first board area 201 forms a hollow inner cavity 230. The second board area 202 is bent relative to the first board area 201, and the second board area 202 extends into the inner cavity 230. The shape of the cylinder formed by the first board area 201 is adapted to the shape of the installation cavity 110, and the position of the second board area 202 makes full use of the space of the inner cavity 230 formed by the first board area 201. The lamp beads 210 on the first board area 201 face outward toward the inner wall of the inner cavity 230, so as to irradiate in all directions through the lamp housing 100.

[0037] Furthermore, a third board area 203 is also separately provided on the circuit board 200. The third board area 203 can extend out in the form of an original board from one side of the first board area 201. Lamp beads 210 are provided on the third board area 203. As shown in Figure 4 and Figure 6 , when the first board area 201 is folded into a cylinder, the third board area 203 is bent relative to the first board area 201, and the third board area 203 is then located at one end of the inner cavity 230 at this time. One end of the third board area 203 in the installation cavity 110 faces the lamp housing 100. The lamp beads 210 on the third board area 203 are used to irradiate outward from one end of the lamp housing 100, increasing the light projection range.

[0038] In some specific embodiments of the present utility model, as shown in Figure 3 and Figure 5 , a plurality of first heat dissipation holes 240 are opened on the circuit board 200. A plurality of second heat dissipation holes 130 are opened on the lamp housing 100. After the circuit board 200 is folded and installed into the installation cavity 110, the positions of the first heat dissipation holes 240 and the second heat dissipation holes 130 are opposite. The heat generated when the circuit board 200 works can be dissipated to the outside of the lamp housing 100 through the first heat dissipation holes 240 and the second heat dissipation holes 130. In particular, the electronic component group 220 in the second board area 202 is located in the inner cavity 230 and dissipates heat outward through the first heat dissipation holes 240. The relative positions of the first heat dissipation holes 240 and the second heat dissipation holes 130 can form a convection, which can increase the heat dissipation effect. The shapes of the first heat dissipation holes 240 and the second heat dissipation holes 130 are not limited and can be round holes, oval holes, square holes, etc. In this embodiment, both the first heat dissipation holes 240 and the second heat dissipation holes 130 are in strip shapes and are aligned one by one. The second heat dissipation holes 130 extend along the axial direction of the lamp housing 100, and a plurality of second heat dissipation holes 130 are distributed along the circumferential direction of the lamp housing 100. This effectively ensures the heat dissipation area.

[0039] In some embodiments of the present utility model, an electrical connector 300 is further included. The electrical connector 300 is installed on the lamp housing 100, and the circuit board 200 and the electrical connector 300 can be electrically connected through conductive components such as wires and conductive sheets. For example Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10 as shown, the shape of the electrical connector 300 is not limited and can be threaded, disc-shaped, rectangular plug-shaped, etc. Among them, the installation cavity 110 has a closed end 111 and an open end 112 that are opposite in position. The open end 112 is one end of the lamp housing 100, and the closed end 111 is the other opposite end of the lamp housing 100. The closed end 111 can limit the axial position of the circuit board 200 in the installation cavity 110. The electrical connector 300 is installed on the open end 112. The electrical connector 300 can abut the circuit board 200 in the direction of the closed end 111, further axially fixing the circuit board 200.

[0040] In some specific embodiments of the present utility model, preferably, the thickness of the circuit board 200 is 0.73 mm.

[0041] In the description of this specification, the description with reference to terms such as "some specific embodiments" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An LED lamp, characterized in that: include: A lamp housing (100), wherein the lamp housing (100) is provided with a mounting cavity (110); A flexible circuit board (200) is provided, wherein a plurality of lamp beads (210) and an electronic component group (220) for controlling the lamp beads (210) are integrated on the circuit board (200), the circuit board (200) can be rolled up and placed in the installation cavity (110), and the lamp beads (210) can radiate outward through the lamp housing (100).

2. The LED lamp according to claim 1, characterized in that: The installation cavity (110) is in the shape of a hollow column, and the circuit board (200) is rolled into a cylindrical shape that matches the shape of the installation cavity (110).

3. The LED lamp according to claim 2, characterized in that: A plurality of lamp slots (120) are provided on the inner wall of the installation cavity (110), the lamp slots (120) are parallel to each other and are distributed along the circumference of the installation cavity (110), and the plurality of lamp beads (210) are distributed on the circuit board (200) to form a plurality of groups of mutually parallel lamp arrays (211), and each group of the lamp arrays (211) is inserted into the lamp slots (120) in a one-to-one correspondence.

4. The LED lamp according to claim 2, characterized in that: The circuit board (200) comprises a first board area (201) and a second board area (202); a plurality of lamp beads (210) are distributed and integrated on the first board area (201); the electronic component group (220) is distributed and integrated on the second board area (202); the first board area (201) is rolled up into a cylindrical shape, with each of the lamp beads (210) facing outward; the second board area (202) is bent relative to the first board area (201) and is placed in an inner cavity (230) formed by the first board area (201) being rolled up.

5. The LED lamp according to claim 4, characterized in that: The circuit board (200) further comprises a third board area (203), the third board area (203) being bent relative to the first board area (201) and being located at the end of the inner cavity (230), the lamp bead (210) being arranged on the third board area (203), and the third board area (203) being oriented toward the end of the lamp housing (100).

6. The LED lamp according to any one of claims 1 to 5, characterized in that: The circuit board (200) is provided with a plurality of first heat dissipation holes (240), and the lamp housing (100) is provided with a plurality of second heat dissipation holes (130), wherein the first heat dissipation holes (240) and the second heat dissipation holes (130) are located opposite to each other.

7. The LED lamp according to claim 6, characterized in that: The first heat dissipation holes (240) and the second heat dissipation holes (130) are both strip-shaped and aligned one by one.

8. The LED lamp according to claim 1 or 2, characterized in that: It also includes an electrical connector (300), the electrical connector (300) being mounted on the lamp housing (100), and the circuit board (200) being electrically connected to the electrical connector (300).

9. The LED lamp according to claim 8, characterized in that: The installation cavity (110) has a closed end (111) and an open end (112) that are opposite to each other, and the electrical connector (300) is installed on the open end (112).

10. The LED lamp according to claim 1, characterized in that: The thickness of the circuit board (200) is 0.73 mm.

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