LED lamp
By adjusting the chip arrangement spacing and using a diffuser plate in the spiral LED light source, the problem of uneven brightness in the spiral LED light source was solved, achieving a more uniform lighting effect and improving the overall light quality of the LED lamp.
Patent Information
- Application Number
- CN202520007911.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The uneven surface brightness distribution of spiral LED light sources leads to a decrease in the overall light quality of LED lights.
The LED chips on the outermost ring of the spiral, near the end, are spaced smaller along the spiral direction than the other chips. Combined with the design of the diffuser plate, this increases the light illumination range and brightness at the end of the outermost ring of the spiral, and fills the gaps in light intensity.
It improves the uniformity of light output brightness across the entire surface of the LED light, thereby enhancing the light quality.
Smart Images
Figure CN223622801U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of lighting equipment technology, and in particular relates to an LED lamp. Background Technology
[0002] Currently, the thickness of circular LED lights on the market is becoming increasingly thinner. To meet the requirements of surface brightness uniformity, most LED lights use LED light sources with multiple rings of LED chips on a substrate. One type of LED light source arranges multiple LED chips in a spiral pattern on the substrate, hereinafter referred to as a spiral LED light source. As spiral LED light sources are widely used, the disadvantage of poor surface brightness uniformity compared to LED light sources with multiple rings arranged in concentric circles has gradually become apparent.
[0003] In a spiral LED light source, since the spiral formed by multiple LED chips is not a standard circle, there will be a large gap in the spiral direction extending from the LED chip at the outermost end of the spiral. The light emitted from these gaps will rely entirely on the light dispersed from the LED chips in other positions. This results in the light emitted from these gaps being dimmer than the light emitted from other positions, leading to uneven brightness distribution on the overall surface of the LED lamp and reducing the light quality of the LED lamp. Utility Model Content
[0004] The purpose of this application is to provide an LED lamp that aims to solve the problem of uneven overall surface brightness distribution in LED lamps using spiral LED light sources.
[0005] To achieve the above objectives, the technical solution adopted in this application is: an LED light, comprising:
[0006] The outer shell has a receiving space and a light outlet communicating with the receiving space;
[0007] An LED light source is installed in a housing space. The LED light source includes a substrate and at least one LED chip group. The LED chip group includes multiple LED chips. The multiple LED chips of an LED chip group are spaced apart on the side of the substrate facing the light outlet and arranged in a spiral shape.
[0008] A diffuser plate is placed at the light outlet;
[0009] In an LED chip assembly, a portion of the LED chips located on the outermost ring of a spiral and near the end of the outermost ring are arranged at a smaller interval along the spiral direction than the remaining LED chips are arranged along the spiral direction.
[0010] In some embodiments of this application, the substrate is circular, and multiple LED chips of the LED chip group are arranged in a spiral around the center of the substrate. The line connecting the LED chip at the outermost end of the spiral and the center of the substrate is taken as the starting line. A preset central angle is taken from the starting line along the spiral direction. The spacing of a portion of the LED chips located at the outermost end of the spiral and corresponding to the preset central angle along the spiral direction is smaller than the spacing of the remaining LED chips along the spiral direction.
[0011] In some embodiments of this application, a portion of the LED chips located on the outermost ring of the spiral and near the end of the outermost ring, corresponding to a preset central angle, are arranged at equal intervals along the spiral direction; and / or, the remaining LED chips are arranged at equal intervals along the spiral direction.
[0012] In some embodiments of this application, a portion of LED chips located on the outermost ring of the spiral and near the end of the outermost ring, corresponding to a preset central angle, are arranged at equal intervals along the spiral direction, and the remaining LED chips are arranged at equal intervals along the spiral direction. Furthermore, the line density of the portion of LED chips on the outermost ring of the spiral corresponding to the preset central angle is A, and the line density of the remaining LED chips along the spiral direction is B, wherein the ratio of A to B ranges from 1.6 to 2.0.
[0013] In some embodiments of this application, the preset central angle ranges from 10° to 90°.
[0014] In some embodiments of this application, the LED light source includes multiple LED chip groups, and the LED chips of the multiple LED chip groups are arranged in a spiral shape to form a radially nested arrangement. Furthermore, the LED chips of the multiple LED chip groups located at the ends of the respective spiral shapes are spaced equally apart.
[0015] In some embodiments of this application, the LED light is a fan light, which also includes a motor, a turntable and multiple fan blades. The motor includes a stator and a rotor. The rotor is rotatably sleeved on the stator. Both ends of the stator protrude from both ends of the rotor. The turntable is fixedly connected to the rotor. One end of the stator passes through the turntable and is fixedly connected to the outer casing. Multiple fan blades are circumferentially evenly arranged on the side of the turntable away from the outer casing.
[0016] In some embodiments of this application, the fan light also includes a driver circuit board, which is connected to the housing and located in the receiving space. The LED chip is electrically connected to the driver circuit board, and the stator is provided with a through-hole for wiring at both ends. The power line of the driver circuit board passes through the through-hole.
[0017] In some embodiments of this application, the fan blade is rotatably connected to the turntable, and the fan blade has a working position and a storage position relative to the turntable. The fan blade is rotatably connected to the turntable so that the fan blade can switch between the working position and the storage position.
[0018] In some embodiments of this application, the fan light further includes a circumferential guard plate, which is detachably connected to the circumferential sidewall of the housing. Along the extension direction of the rotation axis of the rotor, the circumferential guard plate has a first end and a second end. The inner wall of the first end is provided with a circumferential protrusion. The circumferential edge region of the diffuser plate is sandwiched between the circumferential protrusion and the end wall of the light outlet. The second end extends in a direction away from the first end and the end wall of the second end extends beyond the turntable.
[0019] This application has at least the following beneficial effects:
[0020] In the LED lamp provided in the embodiments of this application, the LED light source includes a substrate and at least one LED chip group. Multiple LED chips of an LED chip group are spaced apart on the substrate and arranged in a spiral pattern. Within the LED chip group, the spacing between a portion of the LED chips located on the outermost ring of the spiral and near its end is smaller than the spacing between the remaining LED chips along the spiral direction. This allows the portion of LED chips located on the outermost ring of the spiral and near its end to emit more light. This light illuminates a predetermined range extending along the spiral direction from the LED chips located at the end of the outermost ring, thereby increasing the light output brightness within this predetermined range, improving the uniformity of the overall surface light output brightness of the LED lamp, and enhancing the light quality of the LED lamp. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the assembly structure of the LED lamp according to an embodiment of this application. Figure 1 ;
[0023] Figure 2 for Figure 1 An exploded view of the LED light is shown;
[0024] Figure 3 for Figure 1 The diagram shows the front view of the LED light, in which the diffuser plate is removed;
[0025] Figure 4 for Figure 1 The diagram shows the assembly structure of the LED light. Figure 2 ;
[0026] Figure 5 for Figure 4 An exploded view of the LED light is shown;
[0027] Figure 6 for Figure 3 A top view of the LED light is shown.
[0028] Figure 7 for Figure 6 Cross-sectional view along the AA direction;
[0029] Figure 8 for Figure 7 Enlarged view of point B in the middle;
[0030] Figure 9 This is a schematic diagram of the structure of multiple LED chip groups of the LED light source of the LED light package according to an embodiment of this application. In each LED chip group, a portion of the LED chips located on the outermost ring of the spiral and near the end of the outermost ring of the spiral, corresponding to a preset central angle θ, are connected in series by dashed lines for emphasis.
[0031] The figures in the diagram are labeled as follows:
[0032] 10. Outer shell; 11. Receiving space; 12. Light outlet; 13. Circumferential sidewall;
[0033] 20. LED light source; 21. Substrate; 22. LED chipset; 23. LED chip;
[0034] 30. Diffuser plate;
[0035] 40. Motor; 41. Stator; 411. Wiring channel; 412. Suspension rod assembly; 413. First protective cover; 414. Second protective cover; 42. Rotor;
[0036] 50. Turntable;
[0037] 60. Fan blades;
[0038] 70. Driver circuit board; 71. Power cord;
[0039] 80. Circumferential guard plate; 81. First end; 82. Second end; 83. Circumferential protrusion; 84. O-ring;
[0040] 100. Starting line;
[0041] θ, preset central angle; ω, spiral direction; Φ, center of the circle. Detailed Implementation
[0042] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0043] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0046] like Figure 2 , Figure 5 and Figure 7As shown, the LED lamp provided in the embodiment of this application includes a housing 10, an LED light source 20, and a diffuser plate 30. The housing 10 forms a receiving space 11 and a light outlet 12 communicating with the receiving space 11. The LED light source 20 is mounted in the receiving space 11. The LED light source 20 includes a substrate 21 and at least one LED chip group 22. The LED chip group 22 includes a plurality of LED chips 23. The plurality of LED chips 23 of one LED chip group 22 are spaced apart on the side of the substrate 21 facing the light outlet 12 and arranged in a spiral shape. The diffuser plate 30 is disposed at the light outlet 12. In one LED chip group 22, the spacing of a portion of the LED chips 23 disposed on the outermost spiral and near the end of the outermost spiral is smaller than the spacing of the remaining LED chips 23 arranged in the spiral direction.
[0047] In the LED lamp provided in the embodiments of this application, the LED light source 20 includes a substrate 21 and at least one LED chip group 22. Multiple LED chips 23 of an LED chip group 22 are spaced apart on the substrate 21 and arranged in a spiral pattern. Within the LED chip group 22, the spacing between a portion of the LED chips 23 located on the outermost ring of the spiral and near its end is smaller than the spacing between the remaining LED chips 23. This allows the portion of LED chips 23 located on the outermost ring of the spiral and near its end to emit more light. This light illuminates a predetermined range extending spirally from the LED chips 23 located at the end of the outermost ring. This predetermined range is the empty space within a certain range extending spirally from the LED chips 23 located at the end of the outermost ring, thereby increasing the light output brightness within this predetermined range, improving the uniformity of the overall surface light output brightness of the LED lamp, and enhancing the light quality of the LED lamp.
[0048] like Figure 2 , Figure 3 and Figure 5 As shown, the substrate 21 is circular, and the multiple LED chips 23 of the LED chip group 22 are arranged in a spiral around the center of the substrate 21. And as... Figure 3As shown, taking the line connecting the center of the LED chip 23 located at the outermost end of the spiral and the center of the substrate 21 as the starting line 100, a preset central angle θ is taken along the spiral direction from the starting line 100. The spacing of a portion of the LED chips 23 located at the outermost end of the spiral and corresponding to the preset central angle θ along the spiral direction is smaller than the spacing of the remaining LED chips 23 along the spiral direction. In this LED lamp, the vacant positions within a certain range extending along the spiral direction from the LED chip 23 located at the outermost end of the spiral are within the radiation coverage of the preset central angle θ. That is, the portion of LED chips 23 located at the outermost end of the spiral and corresponding to the preset central angle θ are more densely arranged than the remaining LED chips 23, i.e., this portion of the LED chips 23 at the aforementioned vacant positions on the outermost spiral emits more light. These lights illuminate the vacant area to provide supplemental lighting. Combined with the light dispersed to the vacant area by the remaining LED chips 23, the light intensity at the vacant area of the LED lamp in this embodiment is higher than that of the vacant area in commercially available LED lamps, resulting in better light output brightness at the vacant area. This leads to better uniformity of light output brightness across the entire surface of the LED lamp, improving its light quality.
[0049] In this LED light, the number of turns of the multiple LED chips 23 arranged in a spiral is determined by using the line connecting the LED chip 23 at the innermost end of the spiral and the LED chip 23 at the outermost end of the spiral as the dividing line. The point where this dividing line intersects with the spiral is taken as the starting point, and rotating 360° along the spiral direction constitutes one revolution of the spiral. This process is repeated to determine the number of turns of the multiple LED chips 23 arranged in a spiral. Furthermore, when the substrate 21 is circular and the multiple LED chips 23 of the LED chip group 22 are arranged in a spiral around the center of the substrate 21, the aforementioned dividing line coincides with the starting line 100.
[0050] In the embodiments of this application, a portion of the LED chips 23, corresponding to a preset central angle θ, located on the outermost ring of the spiral and near the end of the outermost ring, are arranged with equal spacing along the spiral direction. This uniformly spaced portion of the LED chips 23 facilitates arrangement, and the light emitted by these uniformly spaced LED chips 23 does not result in excessively concentrated light emission, thus avoiding the appearance of illumination spots on the illuminated surface (such as an illuminated desktop or wall), which helps improve the uniformity of the overall surface light emission brightness of the LED lamp. Furthermore, the remaining LED chips 23 of the LED lamp are also arranged with equal spacing along the spiral direction. Similarly, the uniform spacing of the remaining LED chips 23 of the LED lamp ensures uniform light emission across the entire surface of the LED lamp, further improving the uniformity of the overall surface light emission brightness of the LED lamp.
[0051] Since the spiral shape formed by the spiral arrangement of multiple LED chips 23 is not a standard circle, in some embodiments of the LED lamp of this application, the LED chips 23 located on the outermost circle of the spiral and near the end of the outermost circle, corresponding to the preset central angle θ, are arranged with equal intervals along the spiral direction. On this basis, the intervals of the remaining LED chips 23 arranged along the spiral direction may not be equal. The remaining LED chips 23 are arranged, for example, with gradually increasing intervals, and the situation of illumination spots appearing on the illuminated surface should be avoided.
[0052] Alternatively, in some other embodiments of the LED lamp of this application, a portion of the LED chips 23, corresponding to a preset central angle θ, located on the outermost ring of the spiral and near the end of the outermost ring, are arranged with gradually increasing spacing along the spiral direction, and the illumination of the illuminated surface should be avoided. Furthermore, the remaining LED chips 23 of the LED lamp are arranged with equal spacing along the spiral direction.
[0053] Furthermore, in the LED lamp provided in the embodiments of this application, the linear density of a portion of the LED chips 23 in the outermost spiral corresponding to the preset central angle θ along the spiral direction is A, and the linear density of the remaining LED chips 23 along the spiral direction is B. The ratio of A to B ranges from 1.6 to 2.0, i.e., 1.6 ≤ A: B ≤ 2.0. The linear density along the spiral direction is the number of LED chips 23 arranged per unit spiral arc length. That is, if the spiral arc length of the outermost spiral corresponding to the preset central angle θ is L, and X LED chips 23 are arranged, then A = X / L. Similarly, the linear density B of the remaining LED chips 23 along the spiral direction is calculated. By comparing the uniformity of the overall surface brightness of LED lamps with different A: B ratios, when 1.6 ≤ A: B ≤ 2.0, the uniformity of the overall surface brightness of the LED lamp is better. In other words, when A:B < 1.6, the light received by the aforementioned vacant position is significantly less than the light emitted from other positions, making the light output brightness of the vacant position significantly dimmer than that of other positions, which is detrimental to the uniformity of the overall surface light output brightness of the LED lamp; when A:B > 2.0, the light received by the aforementioned vacant position is significantly more than the light emitted from other positions, making the light output brightness of the vacant position significantly brighter than that of other positions, which is also detrimental to the uniformity of the overall surface light output brightness of the LED lamp.
[0054] like Figure 3 As shown, in the LED lights provided in the embodiments of this application, the preset central angle θ ranges from 10° to 90°.
[0055] like Figure 9As shown, in some embodiments of the LED lamp provided in this application, the LED light source 20 includes multiple LED chip groups 22, and the LED chips 23 of the multiple LED chip groups 22 are arranged in a spiral shape and nested radially. Thus, the overall surface brightness of the LED lamp in this embodiment is higher than that of an LED lamp with only a single LED chip group 22, resulting in a brighter lighting effect. Users can select the appropriate brightness according to the actual lighting needs of the lighting scenario, thereby improving the adaptability of the LED lamp to a wider range of lighting scenarios. Furthermore, the LED chips 23 of the multiple LED chip groups 22 are evenly spaced at the ends of the corresponding spirals. That is, the spacing between adjacent empty positions in each LED chip group 22 is equal, and by increasing the linear density A of the LED chips 23 arranged along the spiral direction in the outermost ring of the spiral corresponding to a preset central angle θ, the uniformity of the overall surface brightness of the LED lamp is improved, thereby enhancing the light quality of the LED lamp.
[0056] like Figures 1 to 7 As shown, the LED light provided in the embodiment of this application is a fan light. The fan light also includes a motor 40, a turntable 50, and multiple fan blades 60. The motor 40 includes a stator 41 and a rotor 42. The rotor 42 is rotatably fitted onto the stator 41. Both ends of the stator 41 extend out of the rotor 42. One end of the stator 41 is fixedly mounted to the ceiling via a suspension rod member 412. The end of the stator 41 away from the ceiling passes through the turntable 50 and is fixedly connected to the outer casing 10. The suspension rod member 412 is provided with a first protective cover 413 and a second protective cover 414. The first protective cover 413 covers and protects the motor 40, and the second protective cover 414 covers and protects the locking structure between the suspension rod member 412 and the ceiling. The turntable 50 is fixedly connected to the rotor 42, and the multiple fan blades 60 are circumferentially and evenly arranged on the side of the turntable 50 away from the outer casing 10. In this way, the rotor 42 drives the turntable 50 to rotate, and the turntable 50 drives multiple fan blades 60 to rotate, thereby realizing the fan air output function. Furthermore, there is no motion interference between the turntable 50 and the outer casing 10. The LED light source 20 can be independently powered on or off relative to the motor 40. That is, the LED light source 20 can be powered on alone for illumination without using the fan air output function, or the motor 40 can be powered on alone for fan air output function without illumination, or the motor 40 can be powered on for fan air output function and the LED light source 20 can be powered on simultaneously for illumination.
[0057] like Figure 2 , Figure 5 and Figure 7As shown, the fan light also includes a driver circuit board 70, which is connected to the housing 10 and located in the receiving space 11. The driver circuit board 70 is supported by the stator 41, and the LED chip 23 is electrically connected to the driver circuit board 70. The stator 41 has through-holes 411 at both ends, through which the power line 71 of the driver circuit board 70 passes. When the energized motor 40 is used for fan operation, the driver circuit board 70 is fixed and stationary, and the power line 71 is not twisted. Therefore, connector structures such as brushes are unnecessary, reducing the wiring difficulty of the fan light.
[0058] In the fan light of this application embodiment, the fan blades 60 are rotatably connected to the turntable 50. The fan blades 60 have a working position and a retracted position relative to the turntable 50. The fan blades 60 are rotatably connected to the turntable 50 so that the fan blades 60 can switch between the working position and the retracted position. That is, when the motor 40 needs to be powered to use the fan air output function, the fan blades 60 are rotated and extended to the working position; when the fan air output function is not needed, the fan blades 60 are rotated and retracted to the retracted position. Furthermore, when carrying and moving the fan light, the fan blades 60 can be rotated and retracted to the retracted position, thereby reducing the overall size of the fan light and making it convenient to carry and move.
[0059] To prevent movement interference between the turntable 50 and the outer casing 10, the turntable 50 and the outer casing 10 are assembled with a gap between them. However, this gap can easily trap foreign objects, causing the turntable 50 to jam. Therefore, as... Figure 7 and Figure 8 As shown, the fan light also includes a circumferential guard plate 80, which is detachably connected to the circumferential sidewall 13 of the housing 10. Along the extension direction of the rotation axis of the rotor 42, the circumferential guard plate 80 has a first end 81 and a second end 82. The inner wall of the first end 81 is provided with a circumferential protrusion 83. The circumferential edge region of the diffuser plate 30 is sandwiched between the circumferential protrusion 83 and the end wall of the light outlet 12. An O-ring 84 is provided between the circumferential protrusion 83 and the circumferential edge region of the diffuser plate 30 to achieve a sealing arrangement. The second end 82 extends away from the first end 81, and the end wall of the second end 82 extends beyond the turntable 50. Thus, while ensuring that the circumferential guard plate 80 does not interfere with the movement of the turntable 50, the end wall of the second end 82 of the circumferential guard plate 80 extending beyond the turntable 50 protects the gap between the turntable 50 and the housing 10, effectively preventing foreign objects from getting stuck in this gap and causing the turntable 50 to jam.
[0060] According to another aspect of the embodiments of this application, the LED light provided in the embodiments of this application can also be a circular panel light installed on the ceiling to realize the lighting function, which will not be described in detail here.
[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An LED light, comprising: The outer shell (10) has a receiving space (11) and a light outlet (12) communicating with the receiving space (11); An LED light source (20) is installed in the receiving space (11). The LED light source (20) includes a substrate (21) and at least one LED chip group (22). The LED chip group (22) includes a plurality of LED chips (23). The plurality of LED chips (23) of one LED chip group (22) are spaced apart on the side of the substrate (21) facing the light outlet (12) and arranged in a spiral shape. A diffuser plate (30) is disposed at the light outlet (12); Its features are, In one of the LED chip groups (22), the spacing of a portion of the LED chips (23) located on the outermost ring of the spiral and near the end of the outermost ring of the spiral is smaller than the spacing of the remaining LED chips (23) arranged in the spiral direction.
2. The LED lamp according to claim 1, characterized in that, The substrate (21) is circular, and the plurality of LED chips (23) of the LED chip group (22) are arranged in a spiral around the center of the substrate (21). The line connecting the center of the LED chip (23) located at the outermost end of the spiral and the center of the substrate (21) is taken as the starting line (100). A preset central angle is taken from the starting line (100) along the spiral direction. The spacing of a portion of the LED chips (23) located at the outermost end of the spiral and corresponding to the preset central angle along the spiral direction is smaller than the spacing of the remaining LED chips (23) along the spiral direction.
3. The LED lamp according to claim 2, characterized in that, The LED chips (23) located on the outermost ring of the spiral and near the end of the outermost ring of the spiral, corresponding to the preset central angle, are arranged at equal intervals along the spiral direction; And / or, the remaining LED chips (23) are arranged at equal intervals along the spiral direction.
4. The LED lamp according to claim 2, characterized in that, The LED chips (23) located on the outermost ring of the spiral and near the end of the outermost ring of the spiral, corresponding to the preset central angle, are arranged at equal intervals along the spiral direction. The remaining LED chips (23) are also arranged at equal intervals along the spiral direction. The line density of the LED chips (23) located on the outermost ring of the spiral corresponding to the preset central angle is A, and the line density of the remaining LED chips (23) is B. The ratio of A to B is in the range of 1.6-2.
0.
5. The LED lamp according to claim 2, characterized in that, The range of the preset central angle is 10°-90°.
6. The LED lamp according to any one of claims 1-5, characterized in that, The LED light source (20) includes a plurality of LED chip groups (22), and the LED chips (23) of the plurality of LED chip groups (22) are arranged in a spiral shape and nested in the radial direction. Furthermore, the LED chips (23) of the plurality of LED chip groups (22) located at the ends of the corresponding spirals are spaced equally apart.
7. The LED lamp according to any one of claims 1-5, characterized in that, The LED light is a fan light, which also includes a motor (40), a turntable (50), and multiple fan blades (60). The motor (40) includes a stator (41) and a rotor (42). The rotor (42) is rotatably fitted onto the stator (41). Both ends of the stator (41) protrude from both ends of the rotor (42). The turntable (50) is fixedly connected to the rotor (42). One end of the stator (41) passes through the turntable (50) and is fixedly connected to the outer casing (10). The multiple fan blades (60) are circumferentially and evenly arranged on the side of the turntable (50) away from the outer casing (10).
8. The LED lamp according to claim 7, characterized in that, The fan light also includes a drive circuit board (70), which is connected to the housing (10) and located in the receiving space (11). The LED chip (23) is electrically connected to the drive circuit board (70). The stator (41) is provided with a through-hole (411) at both ends, and the power line (71) of the drive circuit board (70) passes through the through-hole (411).
9. The LED lamp according to claim 7, characterized in that, The fan blade (60) is rotatably connected to the turntable (50). The fan blade (60) has a working position and a storage position relative to the turntable (50). The fan blade (60) is rotatably connected to the turntable (50) so that the fan blade (60) can switch between the working position and the storage position.
10. The LED lamp according to claim 7, characterized in that, The fan light also includes a circumferential guard plate (80), which is detachably connected to the circumferential sidewall (13) of the housing (10). Along the extension direction of the rotation axis of the rotor (42), the circumferential guard plate (80) has a first end (81) and a second end (82). The inner wall of the first end (81) is provided with a circumferential protrusion (83). The circumferential edge region of the diffuser plate (30) is sandwiched between the circumferential protrusion (83) and the end wall of the light outlet (12). The second end (82) extends away from the first end (81) and the end wall of the second end (82) extends beyond the turntable (50).