LED lamp

Abstract

The utility model discloses an LED lamp which comprises a shell; a power supply unit provided inside the housing; the radiator is connected with the shell and is arranged at one end of the shell; the light source part is arranged on the radiator and is electrically connected with the power supply part; the lamp holder is connected with the shell; the stretching part is arranged between the shell and the lamp holder, the stretching part comprises a first stretching component, the first stretching component is located between the lamp holder and the shell, the stretching part comprises a second stretching component, the second stretching component is fixedly connected with the shell, and the first stretching component is located between the lamp holder and the shell. The second stretching component is arranged on the outer side of the first stretching component in a sleeving mode.

Description

[0001] This utility model application is a divisional application filed with the Chinese Patent Office on July 14, 2023, with application number 202390000187.8 and titled "An LED Lighting Fixture". Technical Field

[0002] This invention belongs to the technical field of lighting devices, and more specifically relates to an LED lamp. Background Technology

[0003] LED lights are widely used in various places due to their convenient installation and maintenance, energy saving, high brightness and small size. Their core component, the light-emitting diode (LED), is a new generation of solid-state energy with advantages such as long life, high efficiency and energy saving, and green environmental protection.

[0004] Existing LED lighting fixtures generally fall into two categories: vertical lighting and horizontal lighting. LED lighting fixtures are designed to accommodate these two scenarios, producing both vertically and horizontally emitting LED lights. However, changing the direction of illumination requires replacing the entire lamp, leading to resource waste and increased costs for consumers.

[0005] Furthermore, the length of existing LED lighting fixtures is generally fixed, meaning it cannot be changed. This makes it impossible to meet customer needs when the length of LED lighting fixtures varies.

[0006] In conclusion, given the shortcomings and defects of existing LED lighting fixtures, how to design LED lighting fixtures to save resources and reduce secondary consumption by customers is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] This abstract describes many embodiments of the invention. However, the term "invention" is used only to describe certain embodiments disclosed herein (whether or not they are included in the claims), and not a complete description of all possible embodiments. Certain embodiments of the various features or aspects of the invention described above may be combined in different ways to form a rotating member and an LED luminaire including or a portion thereof.

[0008] The present invention provides a novel rotating structure and an LED lamp including the rotating structure, as well as features in various aspects, to solve the above-mentioned problems.

[0009] This invention provides an LED lighting fixture, comprising:

[0010] case;

[0011] The power supply unit is disposed inside the housing;

[0012] A radiator, which is connected to the housing and disposed at one end of the housing;

[0013] A light source unit is disposed on the heat sink and electrically connected to the power supply unit;

[0014] The lamp holder is connected to the housing;

[0015] A tensioning part is disposed between the housing and the lamp holder.

[0016] The stretching part includes a first stretching member located between the lamp head and the housing. The stretching part also includes a second stretching member fixedly connected to the housing and sleeved on the outside of the first stretching member. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of an LED luminaire according to an exemplary embodiment;

[0018] Figure 2 This is a schematic diagram of the appearance of an LED luminaire according to an exemplary embodiment;

[0019] Figure 3 This is a schematic diagram of the appearance of an LED luminaire according to an exemplary embodiment;

[0020] Figure 4 This is a schematic cross-sectional view of an LED luminaire according to an exemplary embodiment;

[0021] Figure 5 This is a schematic diagram of the heat sink and light source of an LED lamp according to an exemplary embodiment;

[0022] Figure 6 This is a schematic diagram of the housing and lamp holder of an LED lamp according to an exemplary embodiment;

[0023] Figure 7 This is a schematic diagram of the housing and lamp holder of an LED lamp according to an exemplary embodiment;

[0024] Figure 8 This is a schematic diagram of the structure of the lamp board and heat sink of an LED lamp according to an exemplary embodiment;

[0025] Figure 9 This is a schematic diagram of the lamp holder structure of an LED lamp according to an exemplary embodiment;

[0026] Figure 10 This is a schematic diagram of the housing fixing part of an LED lamp according to an exemplary embodiment;

[0027] Figure 11 This is a schematic diagram of the structure of the rotating part of the lamp head of an LED lamp according to an exemplary embodiment;

[0028] Figure 12 This is a schematic diagram of the housing fixing part of an LED lamp according to an exemplary embodiment;

[0029] Figure 13 This is a schematic diagram of the housing fixing part of an LED lamp according to an exemplary embodiment;

[0030] Figure 14 This is a cross-sectional schematic diagram of an LED luminaire according to an exemplary embodiment;

[0031] Figure 15 This is a cross-sectional schematic diagram of an LED luminaire according to an exemplary embodiment;

[0032] Figure 16 This is a schematic diagram of the structure of the power supply and tension member of an LED luminaire according to an exemplary embodiment;

[0033] Figure 17 This is a structural schematic diagram of a tension member of an LED luminaire according to an exemplary embodiment;

[0034] Figure 18 This is a structural schematic diagram of a tension member of an LED luminaire according to an exemplary embodiment;

[0035] Figure 19 This is a schematic diagram of the structure of the second tension member of an LED luminaire according to an exemplary embodiment;

[0036] Figure 20 This is a schematic diagram of the structure of the rotating part of the lamp head of an LED lamp according to an exemplary embodiment;

[0037] Figure 21 This is a schematic diagram of the housing of an LED lamp according to an exemplary embodiment;

[0038] Figure 22 This is a schematic diagram of the housing of an LED lamp according to an exemplary embodiment;

[0039] Figure 23 This is a structural schematic diagram of the first tension member of an LED luminaire according to an exemplary embodiment;

[0040] Figure 24 This is a schematic diagram of the structure of the second rotating member, housing, and lamp holder of an LED lamp according to an exemplary embodiment;

[0041] Figure 25This is a schematic diagram of the structure of the first rotating component and the heat sink of an LED lamp according to an exemplary embodiment;

[0042] Figure 26 This is a cross-sectional schematic diagram of an LED luminaire according to an exemplary embodiment;

[0043] Figure 27 This is an exploded structural diagram of an LED luminaire according to an exemplary embodiment;

[0044] Figure 28 This is an exploded structural diagram of an LED luminaire according to an exemplary embodiment;

[0045] Figure 29 This is a schematic diagram of the structure of the rotating part of the lamp head of an LED lamp according to an exemplary embodiment.

[0046] Figure 30 This is a cross-sectional schematic diagram of an LED luminaire according to an exemplary embodiment. Detailed Implementation

[0047] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described below. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Terms such as "axial direction," "above," and "below" used below are for the purpose of more clearly indicating structural positional relationships and are not intended to limit the present invention. In this invention, "vertical," "horizontal," and "parallel" are defined as including cases within ±10% of the standard definitions. For example, vertical usually refers to an angle of 90 degrees relative to a baseline, but in this invention, vertical refers to cases including those within 80 to 100 degrees.

[0048] like Figures 1-8 As shown in Figure 14, in one embodiment of the present invention, an LED lamp is provided, comprising: a housing 1, a light source 2, a power supply 3, a heat sink 4, a lamp holder 5, and a rotating component 6. The heat sink 4 is connected to the housing 1 and is disposed at one end of the housing 1; the power supply 3 is disposed inside the housing 1; the light source 2 is disposed on the heat sink 4 and is wired to the power supply 3; the lamp holder 5 is connected to the housing 1 and is disposed at the end opposite to the light source 2; the rotating component 6 is disposed at the connection between the housing 1 and the heat sink 4.

[0049] like Figure 5 , 6As shown, the rotating structure 6 may include a first rotating member 61 and a second rotating member 62. The first rotating member 61 and the second rotating member 62 are arranged opposite to each other. The first rotating member 61 and the second rotating member 62 interact with each other, enabling the housing of the LED lamp to rotate, thereby simultaneously driving the heat sink 4 and the light source 2 to rotate (keeping their relationship consistent), so as to control the light emission direction of the LED lamp.

[0050] When changing the light output direction of the LED lamp, it is only necessary to make the first rotating component 61 and the second rotating component 62 rotate relative to each other. There is no need to plug or unplug the first rotating component 61 and the second rotating component 62, thereby avoiding damage to the electrical connection between the various parts of the LED lamp during plugging and unplugging.

[0051] like Figures 4-7 As shown, the first rotating member 61 may further include a first rotating surface 611, and the second rotating member 62 may include a second rotating surface 621. The first rotating surface 611 and the second rotating surface 621 are arranged opposite to each other, and are parallel or substantially parallel. The first rotating surface 611 and the second rotating surface 621 may be the same or substantially the same size. To ensure better integrity of the LED lamp, at least 50% of the area of ​​the first rotating surface 611 and the second rotating surface 621 are in contact with each other, thus preventing any significant gaps between them that could affect product quality. In the height direction of the LED lamp (whole), the acute angle between the first rotating surface 611 and the side wall of the housing 1 is α, and the acute angle between the second rotating surface 621 and the side wall of the housing 1 is β, where α and β are the same or substantially the same. To ensure the light emission direction of the LED lamp can change from vertical to horizontal, and to prevent the change in light emission direction from being too large or too small, the included angle α should be 15° ≤ a ≤ 75°. When the included angle is less than 15°, the range of change in light emission direction is too large; when the included angle is greater than 75°, the range of change in light emission direction is too small. Preferably, 30° ≤ a ≤ 60°; more preferably, included angle α = 45°. Because included angle α and included angle β are the same or approximately the same, i.e., included angle β, 15° ≤ b ≤ 75°; preferably, included angle β, 30° ≤ b ≤ 60°; more preferably, included angle β = 45°. When included angle α / included angle β is 45°, the light emission direction of the LED lamp can undergo a 90° conversion and change.

[0052] like Figure 5 , 6As shown, the first rotating member 61 may include a first rotating portion 612, and the second rotating member 62 may include a second rotating portion 622. The first rotating portion 612 and the second rotating portion 622 are connected to each other, so that the rotating member 61 rotates. Specifically, in one embodiment, the second rotating portion 622 may be inserted into the first rotating portion 612, that is, the second rotating portion 622 is at least partially located in the first rotating portion 612. The second rotating portion 622 can rotate relative to the first rotating portion 612. The second rotating portion 622 may be an extension of the second rotating member 62 toward the first rotating portion 612, and the first rotating portion 612 may be an opening. The outer surface of the second rotating portion 622 contacts one or more points of the first rotating portion 612 to achieve a connection and fit, thereby causing the first rotating member 61 and the second rotating member 62 to rotate relative to each other. In other embodiments, the first rotating portion 612 may be inserted into the second rotating portion 622 and rotate relative to each other therein. The first rotating part 612 may be an extension of the first rotating member 62 toward the second rotating part 622, and the second rotating part 622 may be an opening. The outer surface of the first rotating part 612 contacts one or more points of the second rotating part 622 to achieve a connection and fit, thereby causing the first rotating member 61 and the second rotating member 62 to rotate relative to each other.

[0053] like Figure 5 , 6As shown in Figures 24 and 25, the first rotating member 61 may further include a first limiting member 613, and the second rotating member 62 may further include a second limiting member 623. The first limiting member 613 and the second limiting member 623 are in contact and interact with each other, limiting and fixing the LED lamp after it has rotated to a predetermined position. The first limiting member 613 may include a groove, and the second limiting member 623 may include a protrusion. The second limiting member 623 is at least partially disposed within the first limiting member 613, and the second limiting member 623 is movable within the first limiting member 613. In this embodiment, the first limiting member 613 may include a stop 6131 and a first groove 6132, and the second limiting member 623 may be a protrusion facing the first rotating member 61. After the first rotating member 61 and the second rotating member 62 rotate to a set position, the second limiting member 623 engages in the first groove 6132 of the first limiting member 613, allowing the second limiting member 623 to move within the first groove 6132. When the second limiting member 623 rotates to the stop 6131, the stop 6131 can restrict the rotation of the second rotating member 62 relative to the first rotating member 61, preventing over-rotation. Furthermore, the stop 6131 may include a stepped portion 61311, making it difficult for the second rotating member 62 to slip out after entering the stepped portion 61311, thereby fixing the relative position of the first rotating member 61 and the second rotating member 62 after rotation. In one embodiment, the first limiting member 613 may be a stop, and the second limiting member 623 may be a protrusion facing the first rotating member 61. After the first rotating member 61 and the second rotating member 62 rotate to a set position, the first limiting member 613 blocks the movement of the second limiting member 623, thereby limiting the rotation of the second rotating member 62 relative to the first rotating member 61 and preventing over-rotation. In other embodiments, the first limiting member 613 may be a groove, and the second limiting member 623 may be a protrusion facing the first rotating member 61. After the first rotating member 61 and the second rotating member 62 rotate to the set position, the second limiting member 623 engages with the first limiting member 613, restricting the movement of the second limiting member 623, thereby limiting the rotation of the second rotating member 62 relative to the first rotating member 61 and preventing over-rotation.

[0054] like Figures 3-6 As shown, the first rotating member 61 of the rotating member 6 can be disposed on the heat sink 4, and the second rotating member 62 of the rotating member 6 can be disposed on the housing 1. Through the action of the rotating member 6, the heat sink 4 and the housing 1 rotate relative to each other. Since the light source part 3 is located on the heat sink 4, when the heat sink 4 and the housing 1 rotate relative to each other, the light source part 3 rotates relative to the housing 1 at the same time, thereby changing the direction of the light source part 3 and thus changing the light emission direction of the LED lamp.

[0055] like Figure 4 ,8 As shown, the light source unit 2 includes a lamp board 21, which is in contact with the heat sink 4. The lamp board 21 may include a first light-emitting unit 211, and further, the first light-emitting unit 211 may include LED beads 2111. By lighting the LED beads 2111, the LED lamp achieves an illumination effect. The lamp board 21 may also include a second light-emitting unit 212, which includes LED beads 2112 that emit light with a different color temperature than the LED beads 2111. That is, the first light-emitting unit 211 and the second light-emitting unit 212 emit light with different color temperatures, thereby enabling the LED lamp to have the function of adjusting the color temperature.

[0056] like Figures 1-5 As shown in Figures 8 and 9, the light source unit 2 may further include a light source cover 22 disposed on the light-emitting side of the lamp panel 21. The light source cover 22 is connected and fixed to the heat sink 4. Specifically, the light source cover 22 and the heat sink 4 can be connected by means of snap-fit, fastening, adhesive, etc. The light source cover 22 may include an arc surface. Light emitted from the lamp panel 21 is refracted after passing through the arc surface of the light source cover 22 and then emitted. Thus, through the effect of the arc surface, the light emission range of the LED lamp can be increased. Diffusing powder or other light-diffusing materials may also be added inside the light source cover 22, thereby making the light emitted by the LED lamp softer. The light source cover 22 may include a side portion 221 that allows light to pass through. Through the light transmission effect of the side portion 221, the illumination range of the light emitted from the lamp panel 21 can be wider and the light emission softer.

[0057] The heat sink 4 may include a lamp plate fixing part 42 for fixing the lamp plate 21. The lamp plate 21 may be fixed to the lamp plate fixing part 42 of the heat sink by means of adhesive, screw locking, riveting or welding.

[0058] The heat sink 4 can be made of metal, such as aluminum or aluminum alloy, to improve heat dissipation. The heat sink 4 may include heat dissipation fins 41 for heat dissipation.

[0059] like Figures 9 to 13 As shown, the lamp head 5 of the LED lamp may include a housing fixing part 52 for connecting and fixing to the housing 1. The housing fixing part 52 and the corresponding connection part of the housing 1 can be connected and fixed by means of snap-fit, fastening, screws, adhesive, or a combination of the above connection methods.

[0060] The lamp head 5 may also include a lamp head rotating part 51. Through the action of the lamp head rotating part 51, the lamp head 5 and the housing 1 can rotate relative to each other, thereby adjusting the light output direction of the LED lamp.

[0061] Specifically, the lamp holder rotating part 51 can be connected to the housing fixing part 52 to allow relative rotation between the housing 1 and the housing 5. The lamp holder rotating part 51 and the housing fixing part 52 can be connected and fixed by means of snap-fit, fastening, etc. The lamp holder rotating part 51 includes a first rotating unit 511, and the housing fixing part 52 includes a second rotating unit 521. The first rotating unit 511 and the second rotating unit 521 cooperate with each other to allow relative rotation between the lamp holder 5 and the housing 1. In this embodiment, the first rotating unit 511 can be a barb, and the second rotating unit 521 can be a protrusion of the housing fixing part 52 protruding towards the first rotating unit 511. The first rotating unit 511 abuts against the second rotating unit 521. When rotating, the second rotating unit 521 is connected to the first rotating unit 511, so that the second rotating unit 521 rotates on the side of the first rotating unit 511 away from the housing 1. In other embodiments, the second rotating unit 521 may be a barb, and the first rotating unit 511 may be a protrusion of the lamp head rotating part 51 protruding toward the second rotating unit 521. The first rotating unit 511 abuts against the second rotating unit 521. When rotating, the second rotating unit 521 is engaged and connected with the first rotating unit 511, so that the second rotating unit 521 rotates on the side of the first rotating unit 511 away from the housing 1 (that is, regardless of the specific structure of the first rotating unit 511 and the second rotating unit 521, the function of their engagement is that the second rotating unit 521 rotates on the side of the first rotating unit 511 away from the housing 1, so that when the lamp head rotating part rotates, the housing fixing part is always inside the lamp head rotating part and will not detach from the outside of the lamp head rotating part). The first rotating unit 511 and the second rotating unit 521 may also adopt other engagement methods to achieve relatively stable rotation of the housing 1 and the lamp head 5, preventing the lamp head 5 from falling off.

[0062] The housing fixing part 52 may include a lamp holder rotation limiting part 522. Through the limiting action of the lamp holder 5 rotation limiting part 522, when the lamp holder 5 rotates relative to the housing 1, it plays a limiting role, preventing the lamp holder 5 from over-rotating. Specifically, the lamp holder rotation limiting part 522 may be located on the second rotating unit 521, thus making the lamp holder rotation limiting part 522 integrated with the second rotating unit 521, simplifying the structure. Alternatively, the lamp holder rotation limiting part 522 may be located elsewhere than the second rotating unit 521, i.e., the lamp holder rotation limiting part 522 and the second rotating unit 521 are not integrally formed, effectively avoiding installation and rotation difficulties due to large interference fits and the risk of the lamp holder falling off due to small interference fits. The lamp holder rotating part 51 may include a limiting fitting part 512, which cooperates with the lamp holder rotation limiting part 522 to achieve the limiting effect.

[0063] More specifically, the lamp head rotation limiting part 522 can be a protrusion of the housing fixing part 52 facing outward, and the limiting fitting part 512 can be a blocking part provided on the inner side of the lamp head rotation part. When rotating, the lamp head rotation part 51 rotates relative to the housing fixing part 52, and the limiting fitting part 512 rotates relative to the lamp head rotation limiting part 522, so that the rotation stops when the limiting fitting part 512 touches the lamp head rotation limiting part 522, thereby achieving the limiting effect. In this embodiment, the housing fixing part 52 is provided with two opposing first lamp head rotation limiting parts 5221 and second lamp head rotation limiting parts 5222 (preferably with an angle difference of 180°), and the lamp head rotating part 51 is provided with two opposing limiting mating parts 512 (preferably with an angle difference of 180°). This ensures that when rotation in one direction reaches the limit, the two limiting mating parts 512 respectively abut against the first lamp head rotation limiting part 5221 and the second lamp head rotation limiting part 5222, ultimately preventing over-rotation. In other embodiments, the lamp head rotation limiting part 522 and the limiting mating part 512 can also adopt other mating methods to achieve relatively stable rotation between the housing 1 and the lamp head 5, preventing over-rotation. In this embodiment, the two limiting mating parts 512 are elongated grooves provided on the lamp head rotating part 51.

[0064] like Figure 14 As shown, the lamp holder 5 may also include a second power board 53. The second power board 53 is disposed on the lamp holder rotating part 51. Specifically, the second power board 53 can be fixed to the lamp holder rotating part 51 by means of adhesive, screw locking, riveting, etc. The second power board 53 is electrically connected to the power supply part 3. The second power board 53 may be parallel or approximately parallel to the setting direction of the lamp plate 21.

[0065] like Figure 27 , 28 As shown in Figure 29, the second power supply board 53 can also be installed perpendicular to the mounting surface of the lamp plate 21, thereby allowing for installation via a plug-in connection to improve ease of installation. Specifically, the lamp holder rotating part 51 may include a fixing groove 513, into which the second power supply board 53 can be inserted.

[0066] like Figures 14-16 As shown in Figures 22 and 30, the housing 1 may include a cavity, and the power supply unit 3 may be housed within the cavity of the housing 1. The power supply unit may include a power board 31. The power board 31 is electrically connected to the lamp board 21 of the light source unit 2. In some embodiments (see references) Figure 30The power board 31 can be electrically connected to the lamp plate 21 of the light source unit 2 via a wire 311. The wire 311 can pass sequentially through the first rotating member 61 and the second rotating member 62 to reach the lamp plate 21. The width D1 of the end of the power board 31 away from the light source can be smaller than the width D2 of the end of the power board 31 near the light source, so that it can be accommodated in the housing 1 in conjunction with other components. In addition, in other embodiments of this application, the power board 31 of the power source unit 3 and the lamp plate 21 of the light source unit 2 can also be electrically connected through other conductor connection methods. For example, a conductive metal sheet (not shown) is provided in the first rotating member 61, and the lamp plate 21 and the power board 31 are connected through the holes of the first rotating member 612 and the second rotating member 622, so that the two are electrically connected.

[0067] like Figures 14-16 As shown in Figure 22, the housing 1 may include a power board fixing part 12. The power supply part 3 is fixed to the housing 1 via the power board fixing part 12. The power board fixing part 12 may be a slot structure, in which the power board 3 is inserted.

[0068] like Figure 1 , 3 As shown in Figure 4, the housing 1 may include a dimming member 13. The color temperature of the light emitted by the light source 2 can be changed by adjusting the dimming member 13. The dimming member 13 may include an operating part 131. The color temperature of the light emitted by the light source 2 can be adjusted by controlling the operating part 131. The dimming member 13 may also include a groove 132, within which the operating part 131 can be disposed. The operating part 131 can move within the groove 132, and the size of the groove 132 limits the range of movement of the operating part 131. Furthermore, because the operating part 131 has minimal protrusions relative to the overall LED lamp fixture, the housing 1 is more aesthetically pleasing. To facilitate operation of the operating part 131, a control member 1311 may be included on the operating part 131. The control member 1311 may be a protrusion or a recess, thereby increasing friction during operation and facilitating operation.

[0069] like Figure 26 As shown, the operation unit 131 may include an operation connection part 1312, and the power board 31 includes a controller 311. The operation connection part 1312 is connected to the controller 311, so that the user can adjust the controller 311 by moving the operation unit 131, thereby realizing circuit control and adjusting the color temperature of the LED lamp. Specifically, the controller 311 may include a switch part 3111. The operation connection part 1312 may have two clamping feet, which are respectively disposed on both sides of the switch part 3111, fixing the switch part 3111 in the middle of the operation connection part 1312. The operation connection part 1312 may be made of a material with elastic deformation, such as plastic. This ensures that the operation connection part 1312 and the switch part 3111 are interference-fitted, making it less prone to misalignment or detachment.

[0070] like Figures 16-18 As shown, the LED lamp may further include a stretching portion 7, which may be disposed between the housing 1 and the lamp head 5. Through the stretching action of the stretching portion 7, the LED lamp can be stretched, thereby increasing the overall length of the LED lamp. The stretching portion 7 may include a first stretching structure 71, which is located between the lamp head 5 and the housing 1, and has a certain length in the length direction of the LED lamp. During the use of the LED lamp, when the stretching portion 7 of the LED lamp is stretched, the first stretching member 71 stretches (extends) in a direction away from the light source (or opposite to the light emission direction), thereby increasing the length of the LED lamp (second state). In this embodiment, when the stretching portion 7 is not stretched (first state), the first stretching member 71 is partially located inside the housing 1; furthermore, a portion of the first stretching member 71 may be located inside the lamp head 5. When the stretching portion 7 is stretched, the first stretching member 71 is pulled out from the housing 1 and exposed outside the housing 1. In other embodiments, the first stretching member 71 may be partially located on the outside of the housing 1. When the stretching part 7 is stretched, the first stretching member 71 moves away from the light source (or in the opposite direction to the light emission direction), and the shell 1 partially covered by the first stretching member 71 is exposed.

[0071] The first tension member 71 may include a cylindrical portion 714 and a stop portion 715. The stop portion 715 is disposed at the end of the first tension member 71 closer to the light source, and the cylindrical portion 714 is disposed at the end of the first tension member 71 farther from the light source. The outer perimeter of the stop portion 715 is greater than the outer perimeter of the cylindrical portion 714. Through the stopping action of the stop portion 715, the first tension member 71 can be effectively prevented from being overstretched (completely detached from the housing 1) and falling off.

[0072] like Figures 14-22As shown, the stretching portion 7 may further include a second stretching member 72, which is located between the housing 1 and the lamp holder 5. The second stretching member 72 is fixedly connected to the housing 1. Further, the second stretching member 72 may be sleeved on the outside of the first stretching member 71. The first stretching member 71 may include a receiving groove 712, and the second stretching member 72 may include a sliding arm 721. The sliding arm 721 may be at least partially received in the receiving groove 712 and can move within the receiving groove 712, thereby enabling the stretching portion 7 of the LED lamp to perform a stretching function. The second stretching member 72 may include a second housing connecting portion 722, which is fixedly connected to the housing 1. Specifically, the second housing connecting portion 722 may include a first fixing member 7221, and the housing 1 may include a second fixing member 11. The first fixing member 7221 and the second fixing member 11 are connected and cooperated. The first fixing member 7221 may be one or more protrusions, and the second fixing member 11 may be an opening corresponding to the first fixing member 7221. The first fixing member 7221 is inserted into the second fixing member 11, thereby connecting and fixing the housing 1 and the second tension member 72. The second housing connecting portion 722 may further include a third fixing member 7222, which is sleeved on the end of the housing 1 and abuts against the outer edge of the end of the housing 1, thereby further connecting and fixing the second tension member 72 and the housing 1. The inner circumference of the third fixing member 7222 is greater than or equal to the outer circumference of the cylindrical portion 714 of the first tension member 71, thereby allowing the cylindrical portion 714 of the first tension member 71 to move relative to the second tension member 72. The inner circumference of the third fixing member 7222 is less than or equal to the outer circumference of the stop portion 715 of the first tension member 71, thereby preventing the first tension member 71 from being excessively pulled out.

[0073] like Figures 14-20As shown, the first tension member 71 may include a third limiting member 713, and the sliding arm 721 of the second tension member 72 may include a second limiting member 7211. The third limiting member 713 cooperates with the second limiting member 7211 to limit the stretching of the tensioning part 7, thereby preventing excessive stretching. Specifically, the third limiting member 713 may be an open circular hole located at the end of the receiving groove 712 of the first tension member. The second limiting member 7211 may be a protrusion facing the axis of the LED lamp. The second limiting member 7211 may be located on the sliding arm 721 of the second tension member 72; further, the second limiting member 7211 may be located on the end of the sliding arm 721 of the second tension member 72 near the light source. When the first tension member 71 is pushed into the housing 1, at the maximum insertion value, the second limiting member 7211 engages with the third limiting member 713, preventing the first tension member 71 from being excessively pushed into the housing 1. Two opening slots can be provided on both sides of the third limiting member 713, which increases the elastic deformation of the third limiting member 713. When the first tension member 71 is pulled out, it can pull out the second limiting member 7211 under the action of appropriate force, thereby playing a stretching role for the LED lamp.

[0074] The sliding arm 721 of the second tension member 72, near the light source, can contact the power board 81, thereby fixing and limiting the power board 81. Alternatively, the sliding arm 721 of the second tension member 72 can also be close to the power board 81 without contacting it, thus preventing excessive displacement of the power board 81 and limiting its position to a certain extent.

[0075] like Figures 14-23As shown, the first tension member 71, facing the lamp holder 5, may include a first housing connecting part 711. The first housing connecting part 711 is engaged with the lamp holder rotating part 51 of the lamp holder 5, causing the housing 1 and housing 5 to rotate relative to each other. The lamp holder rotating part 51 and the first housing connecting part 711 can be connected and fixed by means of snap-fit, fastening, etc. The lamp holder rotating part 51 includes a first rotating unit 511, and the first housing connecting part 711 includes a second rotating unit 7111. The first rotating unit 511 and the second rotating unit 7111 cooperate with each other, causing the lamp holder 5 and housing 1 to rotate relative to each other. In this embodiment, the first rotating unit 511 may be a barb, and the second rotating unit 7111 may be a protrusion of the first housing connecting part 711 protruding away from the axis of the LED lamp. The first rotating unit 511 abuts against the second rotating unit 7111. During rotation, the second rotating unit 7111 is engaged and connected with the first rotating unit 511, causing the second rotating unit 7111 to rotate on the side of the first rotating unit 511 away from the housing 1. In other embodiments, the second rotating unit 7111 may be a barb portion, and the first rotating unit 511 may be a protrusion of the lamp head rotating part 51 protruding away from the axis of the LED lamp. The first rotating unit 511 abuts against the second rotating unit 7111. During rotation, the second rotating unit 7111 is engaged and connected with the first rotating unit 511, causing the second rotating unit 7111 to rotate on the side of the first rotating unit 511 away from the housing 1 (i.e., regardless of the specific structure of the first rotating unit 511 and the second rotating unit 7111, the function of their engagement is to allow the second rotating unit 7111 to rotate on the side of the first rotating unit 511 away from the housing 1, thereby ensuring that when the lamp head rotating part rotates, the housing fixing part remains inside the lamp head rotating part and does not detach from the outside of the lamp head rotating part). The first rotating unit 511 and the second rotating unit 7111 can also be used in other ways to make the housing 1 and the lamp head 5 rotate relatively stably and prevent the lamp head 5 from falling off.

[0076] The first housing connection portion 711 may include a lamp head rotation limiting portion 7112. Through the limiting action of the lamp head 5's rotation limiting portion 7112, the lamp head 5 rotates relative to the housing 1, preventing over-rotation. Specifically, the lamp head rotation limiting portion 7112 may be located on the second rotation unit 7111, allowing it to be integrated with the second rotation unit 7111, simplifying the structure. Alternatively, the lamp head rotation limiting portion 7112 may be located elsewhere on the second rotation unit 7111, meaning it is not integrally formed with the second rotation unit 7111. This effectively avoids difficulties in installation and rotation due to excessive interference fit, and the risk of the lamp head detaching due to insufficient interference fit. The lamp head rotation portion 51 may include a limiting fitting portion 512, which engages with the lamp head rotation limiting portion 712 to achieve a limiting effect.

[0077] More specifically, the lamp head rotation limiting part 7112 can be a protrusion of the first tension member 71 protruding away from the axis of the LED lamp, and the limiting fitting part 512 can be a stop part provided on the inner side of the lamp head rotation part. When rotating, the lamp head rotation part 51 rotates relative to the first housing connecting part 711, and the limiting fitting part 512 rotates relative to the lamp head rotation limiting part 7112, so that the rotation stops when the limiting fitting part 512 touches the lamp head rotation limiting part 7112, thereby achieving the limiting effect. In this embodiment, the first housing connecting portion 711 is provided with two oppositely arranged first lamp head rotation limiting portions 7113 and second lamp head rotation limiting portions 7114 (preferably with an angle difference of 180°). The lamp head rotating portion 51 is provided with two oppositely arranged first limiting mating portions 5121 and second limiting mating portions 5122 (preferably with an angle difference of 180°). The first limiting mating portion 5121 is located on one side between the first lamp head rotation limiting portions 7113 and second lamp head rotation limiting portions 7114, and the second limiting mating portion 5122 is located on the first lamp head rotation limiting portion. On the other side between part 7113 and the second lamp head rotation limiting part 7114, when rotation in one direction reaches the limit, the first limiting fitting part 5121 abuts against the first lamp head rotation limiting part 7113 and the second limiting fitting part 5122 abuts against the second lamp head rotation limiting part 7114, ultimately preventing over-rotation; or when rotation in the opposite direction reaches the limit, the first limiting fitting part 5121 abuts against the second lamp head rotation limiting part 7114 and the second limiting fitting part 5122 abuts against the first lamp head rotation limiting part 7113, ultimately preventing over-rotation. In other embodiments, the lamp head rotation limiting part 7112 and the limiting fitting part 512 can also adopt other fitting methods to achieve relatively stable rotation between the housing 1 and the lamp head 5, preventing over-rotation.

[0078] The implementation of the LED lamps of the present invention in various embodiments is as described above. It should be noted that, in various embodiments, for the same LED lamp, the following include: "the first rotating member and the second rotating member are arranged opposite each other," "the first rotating surface and the second rotating surface are arranged opposite each other," "the first rotating surface and the second rotating surface may be the same size or approximately the same size," "the second rotating part can be inserted into the first rotating part," "the second rotating part may be an extension facing the first rotating part," "the first rotating part may be an opening," "the first rotating member may include a first limiting member," "the second rotating member may include a second limiting member," "the first limiting member may be a stop," "the second limiting member may be a protrusion facing the first rotating member," "the first limiting member may be a groove," and so on. The features of “the two limiting members can be a protrusion facing the first rotating member”, “the light source cover is connected and fixed to the heat sink”, “the light source cover can include an arc surface”, “the light source cover can include a side part that allows light to pass through”, “the first rotating member of the rotating member can be located on the heat sink”, “the second rotating member of the rotating member can be located on the housing”, “the heat sink can include a lamp plate fixing part for fixing the lamp plate”, “the heat sink can be made of metal”, “the lamp plate can be fixed to the lamp plate fixing part of the heat sink by means of adhesive, screw locking, riveting, etc”, “the housing can include a cavity”, and “the power supply part can be accommodated in the cavity of the housing” can be applied individually or as a whole in practice, so that only one feature is implemented or several features are implemented at the same time.

[0079] For example, the housing may include a cavity in which the power supply unit may be housed.

[0080] For example, the second rotating part can be an extension toward the first rotating part, and the first rotating part can be an opening.

[0081] In other words, the above features can be arranged and combined in any way and used to improve LED lighting fixtures.

[0082] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. An LED lighting fixture, characterized in that, include: case; The power supply unit is disposed inside the housing; A radiator, which is connected to the housing and disposed at one end of the housing; A light source unit is disposed on the heat sink and electrically connected to the power supply unit; The lamp holder is connected to the housing; A tensioning portion is disposed between the housing and the lamp holder; The stretching part includes a first stretching member, which is located between the lamp head and the housing; The tensioning part includes a second tensioning member, which is fixedly connected to the housing. The second tension member is sleeved on the outside of the first tension member.

2. The LED lamp as described in claim 1, characterized in that, The first tension member includes a receiving groove, and the second tension member includes a sliding arm, which is at least partially received within the receiving groove and is movable within the receiving groove.

3. The LED lamp as described in claim 1, characterized in that, The second tension member includes a second housing connection portion, which is fixedly connected to the housing.

4. The LED lamp as described in claim 3, characterized in that, The second housing connection includes a third fixing member, which is sleeved on the end of the housing and abuts against the outer edge of the end of the housing.

5. The LED lamp as described in claim 4, characterized in that, The first tension member includes a cylindrical portion and a stop portion, wherein the stop portion is disposed at the end of the first tension member closer to the light source; the cylindrical portion is disposed at the end of the first tension member farther away from the light source, relative to the stop portion.

6. The LED lamp as described in claim 5, characterized in that, The outer circumference of the stop portion is greater than the outer circumference of the cylindrical portion.

7. The LED lamp as described in claim 6, characterized in that, The inner circumference of the third fixing member is greater than or equal to the outer circumference of the cylindrical portion of the first tensioning member.

8. The LED lamp as described in claim 6, characterized in that, The inner circumference of the third fixing member is less than or equal to the outer circumference of the stop portion of the first tension member.

9. The LED lamp as described in claim 1, characterized in that, It includes a rotating structure, which is disposed at the connection between the housing and the radiator.

10. The LED lamp as described in claim 9, characterized in that, The rotating structure includes a first rotating component and a second rotating component, with the first rotating component and the second rotating component facing each other.

11. The LED lamp as described in claim 10, characterized in that, The first rotating component includes a first rotating surface, and the second rotating component includes a second rotating surface, with the first rotating surface and the second rotating surface facing each other.

12. The LED lamp as described in claim 11, characterized in that, The acute angle between the first rotating surface and the side wall of the housing is α, and the acute angle between the second rotating surface and the side wall of the housing is β. The included angle α conforms to the following relationship: 15°≤a≤75°, and the included angle β conforms to the following relationship: 15°≤b≤75°.

13. The LED lamp as described in claim 12, characterized in that, The first rotating component of the rotating member is disposed on the radiator, and the second rotating component of the rotating member is disposed on the housing.

14. The LED lamp as described in claim 13, characterized in that, The first rotating member includes a first rotating part, and the second rotating member includes a second rotating part, wherein the first rotating part and the second rotating part are connected.

15. The LED lamp as described in claim 14, characterized in that, The second rotating part is at least partially located within the first rotating part.

16. The LED lamp as described in claim 14, characterized in that, The first rotating component includes a first limiting component, and the second rotating component includes a second limiting component, with the first limiting component in contact with the second limiting component.

17. The LED lamp as described in claim 16, characterized in that, The second limiting member is at least partially disposed within the first limiting member.

18. The LED lamp as described in claim 16, characterized in that, The first limiting member includes a groove, and the second limiting member includes a protrusion.

19. The LED lamp as described in claim 16, characterized in that, The first limiting member includes a stop and a groove, and the second limiting member includes a protrusion.

20. The LED lighting fixture according to any one of claims 1 to 19, characterized in that, The light source includes a lamp panel, which includes a first light-emitting unit and a second light-emitting unit, the first light-emitting unit and the second light-emitting unit emitting light with different color temperatures.

Images