Lighting fixture

Abstract

Provided is a lighting fixture, comprising a housing (100), which housing comprises: a connecting portion (9) and mounting portions (1), wherein the mounting portions (1) are disposed on two sides of the connecting portion (9), each mounting portion (1) has a first accommodating space, and the connecting portion (9) has a second accommodating space; a heat dissipation channel (2) disposed on at least one side of the mounting portion (1); and a heat dissipation portion (3) integrally formed with the mounting portion (1). End caps (54) are provided at two ends of the mounting portion (1) in a length direction, and each end cap (54) is provided with an adjustment knob (542). The lighting fixture further comprises a light-emitting element (4) accommodated in the first accommodating space of the mounting portion (1); a power supply assembly (8) accommodated in the second accommodating space of the connecting portion (9); and a lampshade covering the light-emitting element (4) and connected to the mounting portion (1). The light-emitting element (4) comprises a lamp board (41), a plurality of light emitters (42), and a light processing unit (43) disposed in a light-emitting direction of the light-emitters (42). The adjustment knob (542) can drive the light processing unit (43) to undergo displacement relative to the lamp board (41).

Description

A lighting fixture Technical Field

[0001] This invention relates to the field of lighting fixtures, and more particularly to a lighting fixture. Background Technology

[0002] Lighting fixtures are common household appliances, including incandescent lamps, chandeliers, and linear industrial lamps. During operation, the light-emitting elements of lighting fixtures generate heat. As the operating time increases, the accumulated heat negatively impacts the lifespan and performance of the fixtures, and may also pose safety hazards.

[0003] One existing method for heat dissipation in lighting fixtures is to increase the heat dissipation surface area, such as increasing the surface area of ​​the housing connected to the light-emitting element. However, the farther the housing is from the light-emitting element, the worse the heat dissipation effect. To meet the heat dissipation requirements of lighting fixtures, a sufficiently large heat dissipation surface area is needed, which leads to excessively large fixtures, making packaging, transportation, and installation difficult, and also increasing the cost of the lighting fixtures.

[0004] Traditional lighting fixtures have their light-emitting and backlighting surfaces isolated from each other, and heat dissipation occurs independently on both sides. This reduces the heat dissipation performance of the lighting fixtures to some extent. How to design a heat dissipation structure for lighting fixtures that can simultaneously address the heat dissipation of both the light-emitting and backlighting surfaces is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a housing and a lighting fixture for improving the heat dissipation performance of the lighting fixture and reducing its size.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] This invention discloses a lighting fixture, characterized in that it comprises:

[0008] A housing, the housing including a connecting portion and at least two mounting portions, the two mounting portions being respectively disposed on both sides of the connecting portion, the mounting portions having a first accommodating space, and the connecting portion having a second accommodating space; at least one heat dissipation channel disposed on at least one side of the mounting portion; and at least one heat dissipation part, the mounting portion and the heat dissipation part being integrally formed.

[0009] The mounting part is provided with end caps at both ends along its length, and the end caps are provided with adjustment knobs;

[0010] The lighting fixture further includes a light-emitting element, which is housed in the first accommodating space of the mounting portion, and the light-emitting element and the heat dissipation portion are respectively disposed on both sides of the mounting portion;

[0011] A power supply assembly, the power supply assembly being housed within a second accommodating space of the connection portion; and

[0012] A lampshade, wherein the lampshade covers the light-emitting element and is connected to the mounting part;

[0013] The light-emitting element includes a lamp board and a plurality of light-emitting bodies disposed on the lamp board, as well as a light processing unit disposed in the light-emitting direction of the light-emitting bodies;

[0014] The adjustment knob can cause the light processing unit to move relative to the lamp panel;

[0015] The heat dissipation channel at least partially penetrates the housing; the heat dissipation part is disposed on the side of the mounting part away from the light-emitting element, and the heat dissipation part includes a plurality of heat dissipation fins integrally formed with the mounting part.

[0016] In one embodiment of the present invention, the light processing unit is provided with a plurality of strip-shaped lenses arranged along its length; the relative displacement between the light processing unit and the lamp panel includes vertical movement and horizontal translation.

[0017] In one embodiment of the present invention, the adjustment knob includes an adjustment knob body, a knob rod disposed on the adjustment knob body and extending outward, and a knob limiting member, the knob limiting member being sleeved on the knob rod; the end cover is provided with a plurality of knob connecting holes, the knob limiting member and the knob rod being accommodated in the knob connecting holes; the two ends of the light processing unit are provided with knob connecting portions, the knob connecting portions being provided with lever connecting holes, and the knob rod being inserted into the lever connecting holes.

[0018] In one embodiment of the present invention, the light-emitting element includes a lamp board and a plurality of light-emitting bodies distributed at equal intervals on the lamp board; the lamp board has a conductive circuit, and the light-emitting bodies are electrically connected to the conductive circuit.

[0019] In one embodiment of the present invention, the mounting portion includes a long side and a short side, and the heat dissipation channel is disposed on one side of the long side of the mounting portion. The heat dissipation channel is disposed on at least one side of the mounting portion and is disposed along the long side of the mounting portion.

[0020] In one embodiment of the present invention, the heat dissipation channel is disposed on at least one side of the mounting portion and is disposed along the long side of the mounting portion.

[0021] In one embodiment of the present invention, the heat dissipation channel is disposed between the connecting part and the mounting part; the heat dissipation fins are arranged at equal intervals along the direction of the mounting part, and the thickness of the heat dissipation fins is parallel to the length direction of the mounting part in the opposite direction.

[0022] In one embodiment of the present invention, a junction box is further included, which is connected to the connection portion via a connecting lug; the power supply component is installed on the connection portion and supplies power to the light-emitting element.

[0023] In one embodiment of the present invention, the lampshade includes a light processing unit, the light processing unit includes a first optical component and a second optical component, the surfaces of the first optical component and the second optical component are provided with the same or different microstructure arrays, the microstructure arrays being micro protrusions or depressions.

[0024] In one embodiment of the present invention, the connecting part is provided with a dimming and color-adjusting knob, and the dimming and color-adjusting knob has multiple adjustment levels.

[0025] This invention discloses a lighting fixture, characterized in that it comprises:

[0026] A housing, the housing including a connecting portion and at least two mounting portions, the two mounting portions being respectively disposed on both sides of the connecting portion, the mounting portions having a first accommodating space, and the connecting portion having a second accommodating space; at least one heat dissipation channel disposed on at least one side of the mounting portion; and at least one heat dissipation part, the mounting portion and the heat dissipation part being integrally formed.

[0027] The lighting fixture further includes a light-emitting element, which is housed in a first receiving cavity of the mounting portion, and the light-emitting element and the heat dissipation portion are respectively disposed on both sides of the mounting portion;

[0028] A power supply assembly, the power supply assembly being housed within a second accommodating space of the connection portion; and

[0029] A lampshade, wherein the lampshade covers the light-emitting element and is connected to the mounting part;

[0030] The light-emitting element includes a lamp board and a plurality of light-emitting bodies disposed on the lamp board, as well as a light processing unit disposed in the light-emitting direction of the light-emitting bodies;

[0031] The heat dissipation channel at least partially penetrates the housing; the heat dissipation part is disposed on the side of the mounting part away from the light-emitting element, and the heat dissipation part includes a plurality of heat dissipation fins integrally formed with the mounting part;

[0032] The light processing unit is provided with a first strip lens and a second strip lens. The thickness of the first strip lens is different from the thickness of the second strip lens, and the light emission angle of the first strip lens is different from the light emission angle of the second strip lens.

[0033] In one embodiment of the present invention, both the first strip lens and the second strip lens are provided with at least one set of light-emitting arrays, and the light-emitting arrays can be lit individually or in combination.

[0034] In one embodiment of the present invention, the lamp board has a conductive circuit, and the light-emitting element is electrically connected to the conductive circuit.

[0035] In one embodiment of the present invention, the mounting portion includes a long side and a short side, the heat dissipation channel is disposed on one side of the long side of the mounting portion, the heat dissipation channel is disposed on at least one side of the mounting portion, and is disposed along the long side of the mounting portion, and is disposed between the connecting portion and the mounting portion.

[0036] In one embodiment of the present invention, the heat dissipation channel is disposed between the connecting part and the mounting part.

[0037] In one embodiment of the present invention, the heat dissipation fins are arranged at equal intervals along the direction of the mounting portion, and the thickness of the heat dissipation fins is parallel to the length direction of the mounting portion in the opposite direction.

[0038] In one embodiment of the present invention, the power supply component is installed on the connecting part, and the power supply component supplies power to the light-emitting element.

[0039] In one embodiment of the present invention, a junction box is further included, which is connected to the connection portion via a connecting lug.

[0040] In one embodiment of the present invention, the lampshade includes a light processing unit, the light processing unit includes a first optical component and a second optical component, the surfaces of the first optical component and the second optical component are provided with the same or different microstructure arrays, the microstructure arrays being micro protrusions or depressions.

[0041] In one embodiment of the present invention, the connecting part is provided with a dimming and color-adjusting knob, and the dimming and color-adjusting knob has multiple adjustment levels.

[0042] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0043] By setting a heat dissipation channel on one side of the mounting part, the air flow within the heat dissipation channel can dissipate heat from the mounting part, thereby enabling the mounting part to continuously absorb or conduct the heat generated by the light-emitting element and effectively dissipate it to the outside, thus improving the heat dissipation performance of the lighting fixture; the light source emission angle is adjustable; furthermore, the setting of the heat dissipation channel allows the housing of the lighting fixture to improve its heat dissipation performance without increasing the heat dissipation area. Compared with existing lighting fixture housings with the same heat dissipation effect, it is smaller in size, easier to package, transport and install, and has a lower manufacturing cost; the light emission angle is adjustable, making it suitable for a wide range of scenarios. Attached Figure Description

[0044] Figure 1 is a partial structural schematic diagram of a lighting fixture according to an embodiment of the present invention;

[0045] Figure 2 is a structural schematic diagram of the lighting fixture according to another perspective of an embodiment of the present invention.

[0046] Figure 3 is an enlarged view of part A in Figure 2;

[0047] Figure 4 is a structural schematic diagram of the housing for a lighting fixture according to an embodiment of the present invention;

[0048] Figure 5 is a partially exploded schematic diagram of a portion of the structure in the lighting fixture according to an embodiment of the present invention;

[0049] Figure 6 is a partial plan sectional view of the lighting fixture according to an embodiment of the present invention;

[0050] Figure 7 is a structural schematic diagram of the fastener according to an embodiment of the present invention;

[0051] Figure 8 is a schematic diagram of the overall front structure of the lighting fixture in one embodiment of the present invention;

[0052] Figure 9 is an exploded view (front view) of a lighting fixture in one embodiment of the present invention;

[0053] Figure 10 is a schematic diagram of a light-emitting element in one embodiment of the present invention;

[0054] Figure 11 is a cross-sectional view of the lighting fixture along the width direction in one embodiment of the present invention;

[0055] Figure 12A is a schematic diagram of a lighting fixture with some components hidden on the back according to an embodiment of the present invention;

[0056] Figure 12B is a schematic diagram of the installation positions of the light source mounting part, the light-emitting element, and the heat dissipation part in an embodiment of the present invention;

[0057] Figure 13 is a top view of a lighting fixture according to an embodiment of the present invention;

[0058] Figure 14 is a schematic diagram of the overall lighting fixture in another embodiment of the present invention;

[0059] Figure 15 is a schematic diagram of a lampshade according to an embodiment of the present invention;

[0060] Figure 16 is a view of the lighting fixture along the length direction according to an embodiment of the present invention;

[0061] Figure 17 is an exploded view of the rear of a lighting fixture according to an embodiment of the present invention;

[0062] Figure 18 is a schematic diagram of the light source mounting portion in one embodiment of the present invention;

[0063] Figure 19 is a schematic diagram of the lighting fixture with the second end cap removed along its length in one embodiment of the present invention;

[0064] Figure 20 is a separate schematic diagram of the connecting portion in one embodiment of the present invention;

[0065] Figure 21 is a schematic diagram of a light-emitting element in one embodiment of the present invention.

[0066] Figure 22A is a schematic diagram of the light source mounting part and the connecting part forming a 90-degree angle in one embodiment of the present invention;

[0067] Figure 22B is a schematic diagram of the light source mounting part and the connecting part being at a negative 30 degrees in one embodiment of the present invention;

[0068] Figure 22C is a schematic diagram of the light source mounting part and the connecting part forming a 60-degree angle in one embodiment of the present invention;

[0069] Figure 23 is a schematic diagram of a lighting fixture according to an embodiment of the present invention;

[0070] Figure 24 is an enlarged schematic diagram of point B in Figure 23 in one embodiment of the present invention;

[0071] Figure 25 is a schematic diagram of the rear of the lighting fixture in this embodiment of the present invention;

[0072] Figure 26 is an exploded view of a lighting fixture according to an embodiment of the present invention;

[0073] Figure 27 is a schematic diagram of the back of the lighting fixture after the second optical component is hidden in an embodiment of the present invention;

[0074] Figure 28 is a schematic diagram of a lighting fixture with a hanging support structure in one embodiment of the present invention;

[0075] Figure 29 is a schematic diagram of a lighting fixture with a hanging support structure in another embodiment of the present invention;

[0076] Figure 30 is a schematic diagram of a lighting fixture with two hanging support structures in one embodiment of the present invention;

[0077] Figure 31 is a rear view of a lighting fixture according to an embodiment of the present invention;

[0078] Figure 32 is a front view of a lighting fixture according to an embodiment of the present invention;

[0079] Figure 33 is a schematic diagram of one side of the light-emitting surface of a lighting fixture according to an embodiment of the present invention;

[0080] Figure 34 is a schematic diagram of the first optical component of a lighting device according to an embodiment of the present invention;

[0081] Figure 35 is a schematic diagram of the rear of a lighting fixture according to an embodiment of the present invention;

[0082] Figure 36 is an enlarged view of point E in Figure 35 in one embodiment of the present invention;

[0083] Figure 32 is a schematic diagram of the rear of a lighting fixture according to an embodiment of the present invention;

[0084] Figure 38 is a rear view of a lighting fixture according to another embodiment of the present invention;

[0085] Figure 39 is a schematic diagram showing a transmission mechanism separated from the lighting device in one embodiment of the present invention;

[0086] Figure 40A is an overall schematic diagram of the transmission part in one embodiment of the present invention;

[0087] Figure 40B is an exploded view of the transmission part in one embodiment of the present invention;

[0088] Figure 40C is a cross-sectional view of the transmission unit along the length of the transmission shaft;

[0089] Figure 40D is an exploded view of the transmission unit in one embodiment of the present invention from another perspective.

[0090] Figure 41 is a schematic diagram of the light-emitting surface of a lighting fixture according to an embodiment of the present invention;

[0091] Figure 42 is a schematic diagram of the backlight surface of a lighting fixture according to another embodiment of the present invention;

[0092] Figure 43A is an overall schematic diagram of the purely mechanical transmission mechanism in the transmission mechanism of Figure 42;

[0093] Figure 43B is an exploded view of the purely mechanical transmission mechanism in the transmission mechanism of Figure 42.

[0094] Figures 44A and 44B are overall schematic diagrams of the electrically driven transmission mechanism in Figure 42 from different perspectives.

[0095] Figure 45A is a schematic diagram showing the separation of the first transmission part and the second transmission part;

[0096] Figures 45B and 45C are exploded schematic diagrams of the transmission structure from different perspectives.

[0097] Figure 46 is a schematic diagram of the light-emitting surface of the lighting fixture in Figure 42 of the present invention;

[0098] Figure 47 is a rear view of the lighting device according to another embodiment of the present invention;

[0099] Figure 48 is an exploded view of an adjustment knob according to an embodiment of the present invention;

[0100] Figure 49 is a schematic diagram of the light-emitting surface of a lighting fixture according to an embodiment of the invention;

[0101] Figure 50 is a partially exploded schematic diagram of a lighting fixture along the length of the end cap in one embodiment of the present invention.

[0102] Figure 51 is an overall schematic diagram of the adjustment knob in one embodiment of the present invention;

[0103] Figure 52 is a schematic diagram of the backlight surface after the housing of the lighting fixture is hidden in this invention;

[0104] Figure 53 is a schematic diagram of the light-emitting surface after the housing of the lighting fixture is hidden in the present invention.

[0105] Figure 54 is a schematic diagram of a lighting fixture according to another embodiment of this application;

[0106] Figure 55 is a partially exploded schematic diagram of the lighting fixture along the length of the end cap in another embodiment of the present invention;

[0107] Figures 56, 57 and 58 are schematic diagrams of the lighting fixture after the housing is hidden in another embodiment of this application;

[0108] Figure 59 is a schematic diagram of a lighting fixture according to another embodiment of the present invention;

[0109] Figure 60 is an exploded view of a lighting fixture according to an embodiment of the present invention;

[0110] Figure 61 is a partial enlarged view of the transmission mechanism 16 accessory in Figure 60 of the present invention;

[0111] Figures 62A and 62B are exploded schematic diagrams of the transmission mechanism 16 in Figure 60 from different perspectives;

[0112] Figure 63 is an exploded view of a lighting fixture in one embodiment of this application;

[0113] Figures 64 and 65 are exploded views of a lighting fixture according to an embodiment of this application;

[0114] Figure 66 is a cross-sectional view of the light processing unit and the light emitter in the width direction of the lighting fixture;

[0115] Figure 67A shows the thickness setting of the strip lens 431 in another embodiment of the present invention;

[0116] Figure 67B is a schematic diagram showing the positions of the strip lens and the light emitter in another embodiment of this application;

[0117] Figure 68 is a front view of an LED lighting fixture according to another embodiment of this application;

[0118] Figure 69 is a partial exploded view of an LED lighting fixture according to an embodiment of this application;

[0119] Figure 70 is a magnified view of a portion of Figure 69;

[0120] Figure 71 is an exploded view of an LED lighting fixture from another perspective in one embodiment of this application;

[0121] Figure 72 is a schematic diagram of the splicing of LED lighting fixtures in one embodiment of this application;

[0122] Figures 73 and 74 are enlarged partial views of the first splicing portion in one embodiment of this application.

[0123] In the diagram: 1. Mounting section; 10. Light source mounting section; 101. Positioning plate; 102. Base plate of the light source mounting section; 103. Side wall of the light source mounting section; 11. Accommodating cavity; 12. Hollowed-out groove; 13. Ventilation window; 14. Mounting groove; 140. Mounting bottom surface; 141. Mounting track; 15. Hanging support; 151. First hanging support; 1510. First hanging support hole; 152. Second hanging support; 1512. Second hanging support hole; 153. First connecting frame; 154. Second connecting frame; 155. Third connecting frame; 156. Connecting rod; 157. Locking plate; 1570. Locking hole; 16. Transmission mechanism; 161. First transmission part; 1610. Locking fastener of the first transmission part; 16100. First transmission part 1611. Fixing hole; 1612. First meshing tooth; 1613. Rotary bearing; 1614. First transmission part limiting hole; 1615. Rotary gear; 162. Second transmission part; 1620. Second transmission part locking fastener; 16200. Second transmission part fixing hole; 1621. Second meshing tooth; 1622. Second transmission part limiting chamber; 1623. Second transmission part through hole; 1624. Rack structure; 163. Transmission shaft; 1630. Transmission shaft limiting part; 164. Transmission shaft spring; 165. Transmission motor; 1650. Motor fixing plate; 16500. Motor fixing hole; 166. Motor transmission shaft; 167. First transmission part cavity; 168. First transmission part cover; 17. Light processing unit fixing slot; 2. Heat dissipation channel; 3. Heat dissipation unit; 31. Heat dissipation fins; 310. Long strip heat dissipation fins; 311. Cylindrical heat dissipation fins; 32. Heat dissipation arc surface; 4. Light-emitting element; 41. Lamp board; 42. Light-emitting body; 43. Light processing unit; 430. Toggle switch connection part; 4301. Toggle lever connection hole; 431. Strip lens; 432. Light processing unit fixing part; 5. Lampshade; 51. Vent hole; 52. First optical component; 53. Second optical component; 530. Heat dissipation hole; 531. Sensor receiving hole; 532. Sensor; 54. End cap; 55. Gap; 540. First end cap; 5400. Rotational engagement area; 5401. Arc-shaped window; 5402. Limiting tooth; 5403. Limiting groove; 541. Second end cap; 5410. End cap window; 5411. Limiting post; 542. Adjustment knob; 5420. Knob body; 54201. Knob lever 542010, Toggle lever elastic part; 5421, Toggle lever limiting member; 54210, Toggle lever limiting member through hole; 54211, Toggle lever limiting member elastic part; 543, Toggle lever connecting hole; 5431, Toggle lever connecting hole limiting groove; 6, Fixing unit; 61, Fixing part; 611, Fixing groove; 62, Fixing member; 621, First connecting part; 6211, First side wall; 6212, Second side wall; 622, Second connecting part; 7, Junction box; 71, Outlet hole; 72, Connecting ear; 8, Power supply assembly; 9, Connecting part; 90, Connecting part side wall; 91, Heat dissipation groove; 91', Heat dissipation groove;910. Dustproof eaves; 92. Bending section; 93. Dimming knob; 94. Color adjustment knob; 95. Transmission mechanism housing; 96. Angle adjustment knob; 950. Motor mounting bracket; 100. Housing for lighting fixtures; 101. First splicing fixing part; 1011. Splicing fixing component; 102. Second splicing fixing part; 1000. LED lighting fixtures; Detailed Implementation

[0124] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0125] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0126] As shown in Figures 2 and 4, a lighting fixture corresponding to an embodiment of the present invention includes a housing 100, the housing including at least one mounting part 1, at least one connecting part 9, at least one heat dissipation channel 2 and at least one heat dissipation part 3.

[0127] Referring further to Figure 1, the mounting part 1 is used to connect the light-emitting element 4 in the lighting fixture. To facilitate the installation of the light-emitting element 4, the mounting part 1 may be provided with a cavity (also referred to as a first accommodating space) for receiving the light-emitting element 4, and this cavity is provided with multiple positioning posts. The light-emitting element 4 may be pre-set with positioning holes that can mate with the positioning posts. When the light-emitting element 4 is placed in the cavity, the multiple positioning posts can mate with the pre-set positioning holes of the light-emitting element 4 to achieve positioning of the light-emitting element 4. If the light-emitting element 4 is not pre-set with positioning holes that can mate with the positioning posts, when the light-emitting element 4 is placed in the cavity, the multiple positioning posts can also abut against the outer wall of the light-emitting element 4, that is, the positioning posts are spatially positioned on the outer periphery of the outline of the light-emitting element 4, so that the light-emitting element 4 is limited by the multiple positioning posts in a manner similar to an interference fit, thereby achieving positioning of the light-emitting element 4. When the light-emitting element 4 is connected to the mounting part 1, the mounting part 1 can absorb or conduct at least part of the heat generated by the light-emitting element 4 during operation through heat transfer. The mounting part 1 can be configured as one or more, for example, a pair of mounting parts 1, so that the housing 100 can connect two light-emitting elements 4, and at least a portion of the light-emitting elements is accommodated in the cavity of the mounting part.

[0128] The light-emitting element 4 may specifically include a lamp board 41 and a light-emitting body 42. The lamp board 41 can be connected to a power source, and the lamp board 41 forms a conductive circuit. The light-emitting body 42 is electrically connected to the conductive circuit, so that the power source can supply power to the light-emitting body 42 through the conductive circuit. The number of light-emitting bodies 42 can be set to multiple. In order to make the light emitted by the light-emitting element 4 uniform, the multiple light-emitting bodies 42 are equally spaced on the lamp board 41. For example, when at least a portion of the multiple light-emitting bodies 42 are distributed in a rectangular area, the portion of light-emitting bodies 42 can be distributed in a rectangular array; the spacing between any two adjacent light-emitting bodies 42 along the length of the rectangle is the same, or the spacing between any two adjacent light-emitting bodies 42 along the width of the rectangle is the same, or in order to further improve the uniformity of the light emitted by the light-emitting element 4, the spacing between any two adjacent light-emitting bodies 42 along the length of the rectangle is the same as the spacing between any two adjacent light-emitting bodies 42 along the width of the rectangle. When at least a portion of the multiple light-emitting elements 42 are distributed within a circular region, the portion of light-emitting elements 42 can be arranged in a ring array along the center of the circle. The spacing between any two adjacent light-emitting elements 42 along the circumferential direction is the same, or the spacing between any two adjacent light-emitting elements 42 along the radius of the circle is the same, or the spacing between any two adjacent light-emitting elements 42 along the circumferential direction is the same as the spacing between any two adjacent light-emitting elements 42 along the radius of the circle. Multiple light-emitting elements 42 in a single light-emitting element 4 can all be arrayed within a rectangular or ring-shaped region, or some light-emitting elements 42 can be arrayed along one rectangular or ring-shaped region, and another portion along another rectangular or ring-shaped region. The light-emitting elements 42 are preferably lamp beads or LED chips.

[0129] Of course, in some embodiments, in order to achieve a specific lighting effect, the light emitters 42 may be unevenly distributed on the lamp panel 41, that is, there are at least some areas where the number of light emitters 42 per unit area is greater than / less than the number of light emitters 42 per unit area in another area; or it can be said that there is at least one area where the distribution density of light emitters 42 is greater than that of light emitters 42 in at least another area.

[0130] The heat dissipation channel 2 is disposed on at least one side of the mounting portion 1 (or housing 100), and gas flow can be formed within the heat dissipation channel 2. At least a portion of the gas flowing within the heat dissipation channel 2 can flow through the mounting portion 1 to dissipate heat from the mounting portion 1; thereby, when the light-emitting element 4 is in operation, at least a portion of the mounting portion 1 can be kept below the temperature of the light-emitting element 4, and continuously absorb or conduct heat generated by the light-emitting element 4.

[0131] In one embodiment of the present invention, the heat dissipation channel 2 at least partially penetrates the housing 100. In the direction of the vertical mounting part 1 or parallel to the light emission direction of the lighting fixture, at least a portion of the housing 100 is completely transparent and unobstructed. That is, the heat dissipation channel 2 completely penetrates at least a portion of the housing 100, or completely penetrates at least a portion of the lighting fixture, so that the heat dissipation channel 2 can better meet the gas convection requirements.

[0132] In lighting fixtures, the light-emitting element 4 is typically positioned close to the light-emitting surface to maximize the light emitted by the element. Consequently, most of the heat generated by the element during operation accumulates near the light-emitting surface. However, conventional lighting fixture designs typically place the fixture body (or housing) over the light-emitting element during operation, often inverted, causing the heat generated by the element to be trapped and trapped. To effectively dissipate heat, the heat dissipation channel 2 can extend from the light-emitting surface to the backlighting surface, allowing at least some gas within the channel to flow from the light-emitting surface to the backlighting surface. This carries heat away from the light-emitting surface to the cooler backlighting surface, ultimately dissipating the heat outside the fixture and improving its heat dissipation efficiency.

[0133] The airflow within the heat dissipation channel 2 is formed through the exchange of hot and cold air. Specifically, when the light-emitting element 4 operates, its surrounding temperature rises, causing the air near the light-emitting element 4 to become hot air. Hot air, due to its increased volume and decreased density, rises. Lighting fixtures are typically installed at a high position, such as on the ceiling, with the light-emitting surface facing downwards (i.e., the backlighting surface is higher than the light-emitting surface). If the air at the light-emitting surface of the light-emitting element 4 rises, it moves to the backlighting surface of the fixture and continues to dissipate outwards there. Meanwhile, the air at the light-emitting surface of the light-emitting element 4 rapidly dissipates along the heat dissipation channel 2 from the back of the fixture. This creates a relatively rarefied area near the light-emitting element 4, i.e., near the light-emitting surface, forming a low-pressure area. The relatively cooler air in the environment naturally fills the area near the light-emitting element 4, absorbing the heat generated by the light-emitting element 4 and continuing to dissipate from the heat dissipation channel 2, thus forming a complete air circulation.

[0134] The heat dissipation channel 2 is preferably located on the long side of the mounting portion 1, while the short side of the mounting portion 1 may not have a heat dissipation channel 2. This improves the heat dissipation performance of the lighting fixture while reducing the volume of the housing 100. The reason for this is that the presence of the heat dissipation channel 2 would require the housing 100 to extend outwards along the side of the mounting portion 1 where the heat dissipation channel 2 is located, thus increasing the volume of the housing 100, i.e., the overall volume of the lighting fixture. By only providing the heat dissipation channel 2 on the long side of the mounting portion 1, the length of the heat dissipation channel 2 along the length of the housing can be approximately the same as the length of the long side of the mounting portion 1. This means the heat dissipation channel 2 is longer, and its distribution along the length of the light-emitting elements 42 matches the length of the mounting portion. Along the length direction, each light-emitting element 42 has a heat dissipation channel 2 around its perimeter, and the overall width of the light-emitting elements 42 is smaller. Even the light-emitting elements 42 located in the middle of the width direction can benefit from the heat dissipation effect of the heat dissipation channel 2, resulting in better overall heat dissipation and higher heat dissipation benefits. Furthermore, if the heat dissipation channel 2 is set at the short side of the heat dissipation channel 2, its heat dissipation effect is relatively poor compared to the heat dissipation channel 2 on the long side of the mounting part 1. In terms of the distribution of light-emitting elements 42, the arrangement in the length direction is much larger than the arrangement in the width (short side) direction. If the heat dissipation channel 2 is set along the width (short side) direction, only the light-emitting elements 42 near the short side can be dissipated by the heat dissipation channel 2. Moreover, since the long side is originally larger than the short side, the light-emitting elements 42 that are corrected along the long side cannot be dissipated by the heat dissipation channel set on the short side, resulting in low heat dissipation efficiency and increasing the volume of the lighting fixture housing 100. In addition, the heat dissipation channel 2 set along the long side can also dissipate heat from the light-emitting elements 42 near the short side. Therefore, setting the heat dissipation channel 2 only on the long side of the mounting part 1 can effectively improve the heat dissipation performance of the lighting fixture and reduce the volume of the lighting fixture (or housing 100). In other words, while meeting the heat dissipation requirements, the increased volume of the lighting fixture (or housing 100) can be minimized as much as possible. It should be noted that, as needed, the lighting fixture may also have a heat dissipation channel 2 provided on the short side of the mounting part 1 to further improve its heat dissipation performance.

[0135] The mounting portion 1 may specifically include a pair of opposing long sides. The housing 100 may provide a heat dissipation channel 2 on only one long side of the mounting portion 1, or provide a heat dissipation channel 2 on one side of each long side of the mounting portion 1. Preferably, in order to improve the heat dissipation effect and balance the heat dissipation effect on both sides of the mounting portion 1, a heat dissipation channel 2 is provided on both long sides of the mounting portion 1.

[0136] Referring further to FIG2, the heat dissipation part 3 is connected to the mounting part 1, and the heat dissipation part 3 is capable of absorbing or conducting at least a portion of the heat from the mounting part 1, so that the heat dissipation part 3 can absorb or conduct at least a portion of the heat generated by the light-emitting element 4 through the mounting part 1; and the arrangement of the heat dissipation part 3 can effectively increase the heat dissipation area of ​​the housing 100 for lighting fixtures. At least a portion of the heat dissipation part 3 is located within the heat dissipation channel 2, so that at least a portion of the airflow within the heat dissipation channel 2 can flow through the heat dissipation part 3 to dissipate heat from the heat dissipation part 3.

[0137] The heat dissipation part 3 is disposed on the side of the mounting part 1 away from the light-emitting element 4, that is, the heat dissipation part 3 and the light-emitting element 4 are disposed on opposite sides of the mounting part 1. Alternatively, the heat dissipation part 3 can be disposed on the backlight side of the mounting part 1, and the light-emitting element is disposed on the light-emitting side of the mounting part 1, to avoid the heat dissipation part 3 blocking the light generated by the light-emitting element 4. Specifically, the heat dissipation part 3 may include multiple heat dissipation fins 31, which are arranged at intervals along the length of the mounting part 1. The thickness direction of the heat dissipation fins 31 is parallel to the length direction of the mounting part 1, that is, the heat dissipation fins 31 are approximately perpendicular to the plane of the mounting part 1 and parallel to the short side of the mounting part 1. Preferably, the multiple heat dissipation fins 31 are arranged at equal intervals so that the heat dissipation part 3 composed of the multiple heat dissipation fins 31 can uniformly absorb or conduct heat from various parts of the mounting part 1. For lighting fixtures with different heat dissipation requirements, the number and height of the heat dissipation fins 31 can be adjusted accordingly. For example, when the heat dissipation requirement is high, the number of heat dissipation fins 31 can be increased and / or the height of the heat dissipation fins 31 can be increased; when the heat dissipation requirement is low, the number of heat dissipation fins 31 can be reduced and / or the height of the heat dissipation fins 31 can be decreased.

[0138] In another embodiment of the present invention, the thickness direction of the heat dissipation fin 31 is perpendicular to the length direction of the mounting portion 1, that is, the heat dissipation fin 31 is arranged along the length direction of the mounting portion 1 (or power supply assembly).

[0139] In one embodiment of the present invention, the heat dissipation fins 31 (or heat dissipation part 3) are integrally formed with the mounting part 1, or integrally formed with the housing 100.

[0140] In one embodiment of the present invention, the heat dissipation fins 31 (or heat dissipation part 3) are formed separately and then installed on the mounting part 1, or the heat dissipation fins 31 are formed separately and then assembled with the housing 100.

[0141] The connecting portion 9 is used to mount a power supply assembly (not shown) capable of supplying power to the light-emitting element 4. Specifically, the connecting portion 9 has a corresponding accommodating space (which can be referred to as a second accommodating space), and at least a portion of the power supply assembly is disposed within this accommodating space. When only one mounting portion 1 is provided, the connecting portion 9 can be disposed on one side of the mounting portion 1. When at least two mounting portions 1 are provided, for example, two in one embodiment, the connecting portion 9 can be disposed between the two mounting portions 1, i.e., the two mounting portions 1 are respectively disposed on both sides of the connecting portion 9, so that the power supply assembly mounted on the connecting portion 9 can easily and conveniently supply power to a pair of light-emitting elements 4 connected to the two mounting portions 1. The mounting portions 1 and the connecting portion 9 can be integrally formed from the same material, or they can be independently formed and then assembled.

[0142] In one embodiment, the heat dissipation channel 2 is disposed between the mounting part 1 and the connecting part 9, and can simultaneously dissipate heat from the connecting part 9 and the mounting part 1 located on both sides of the heat dissipation channel 2.

[0143] To further improve the heat dissipation performance of the lighting fixture, the housing 100 is manufactured using a die-casting process. Die-cast parts typically have a large surface area, increasing the heat dissipation area of ​​the housing 100. Furthermore, die-casting reduces internal porosity and air bubbles, improving heat conduction efficiency and thus enhancing the heat dissipation performance of the housing 100. The mounting portion 1, connecting portion 9, heat dissipation channel 2, and heat dissipation portion 3 are preferably integrated structures, allowing the housing 100 to be integrally die-cast without gaps between components. This ensures unimpeded heat conduction between components, enabling the heat generated by the heating elements during operation to be quickly transferred to non-heating locations, further improving heat dissipation performance. As shown in Figures 1 and 2, the present invention also provides a lighting fixture, including the aforementioned housing 100, at least one light-emitting element 4 for generating a light source, a power supply assembly, a junction box 7, and a lampshade 5.

[0144] The housing 100 reduces the size of the lighting fixture, thereby allowing it to have a higher lumen-to-area ratio. For example, the lumen output of the lighting fixture of this invention can be controlled between 30,000 lm and 36,000 lm; its luminous area is 80.6 mm * 355.6 mm, or 0.02866136 m². 2 Therefore, the lumen-to-area ratio of the lighting fixture of the present invention can be 1046705.39 Lm / m². 2 ~1256046.47Lm / m 2 In some other embodiments of the present invention, the lumen-to-area ratio of the lighting fixture can be set to be greater than 1,000,000 Lm / m². 2 .

[0145] The light-emitting element 4 is installed in the mounting part 1, and the number of light-emitting elements 4 is the same as the number of mounting parts 1, and they correspond one-to-one. When multiple mounting parts 1 are provided, the mounting parts 1 are spaced apart from each other in the horizontal direction and do not overlap with the connecting part 9 (or power supply assembly) in the vertical direction. In other words, the overlapping area of ​​the mounting parts 1 in the vertical direction is zero. The mounting part 1 is provided with the light-emitting element 4. The light-emitting element 4 is one of the main heat-generating devices when the lighting fixture is running. The power supply assembly is also one of the heat-generating devices when the lighting fixture is running. The spacing or non-overlapping of the heat-generating devices can effectively avoid heat accumulation (or heat concentration) and reduce the light output effect of the lighting fixture.

[0146] Referring further to Figure 3, the power supply assembly is mounted on the connection portion 9 of the housing 100. Since the power supply assembly needs to connect to external devices, it is connected to multiple wires. To facilitate the exit of these multiple wires, a junction box 7 is connected to the power supply assembly. The junction box 7 has a cavity for accommodating the wires, and at least two sides of the junction box 7 have outlet holes 71, through which wires inside the junction box 7 can extend to the outside. The outlet holes 71 are preferably located on the top wall and one side wall of the junction box 7, allowing wires to extend vertically through the outlet hole 71 on the top wall of the junction box 7, or horizontally through the outlet hole 71 on the side wall of the junction box 7, making wire exit more convenient and flexible.

[0147] The junction box 7 is also provided with a connecting lug 72, which is located on the side of the junction box 7 facing the power supply assembly. The junction box 7 can be connected to the connection part 9, on which the power supply assembly is installed, via the connecting lug 72. Specifically, the connecting lug 72 may have a through hole, and the connection part 9 may have a threaded hole that communicates with the through hole of the connecting lug 72. A screw is provided that passes through the through hole and the threaded hole in sequence to connect with the connection part 9, thereby achieving a fixed connection between the connecting lug 72 and the connection part 9. The design of the connecting lug 72 allows the junction box 7 and the connection part 9 to be fixed with only one screw, simplifying the connection steps between the junction box 7 and the connection part 9.

[0148] Referring to Figures 1 and 5, a lampshade 5 is provided on the light-emitting surface of the lighting fixture. The lampshade 5 completely covers the light-emitting element 4, and the lampshade 5 can process the light emitted from the light-emitting element 4 before emitting it. The lampshade 5 is connected to the mounting part 1 of the housing 100, and the lampshade 5 and the mounting part 1 together form a receiving cavity 11. The light-emitting element 4 is disposed in the receiving cavity 11 so that the lampshade 5 can cover the light-emitting element 4 connected to the mounting part 1. In order to allow the light from the light-emitting element 4 to pass through the lampshade 5 to the outside, the lampshade 5 is made of a light-transmitting material, such as transparent plastic, acrylic, textiles, glass, PC, etc. When the light emitted by the light-emitting unit 4 is coupled to the lampshade 5, at least one of the following phenomena will occur: light diffusion, transmission, refraction, and diffraction. That is, the lampshade 5 has at least one of the following functions: light diffusion, transmission, refraction, and diffraction. The lampshade 5 can adopt a common rectangular plate structure; in some embodiments, in order to adjust the light pattern emitted by the lighting fixture, the lampshade 5 is adjusted to be arc-shaped or has a specific curved surface shape, so that the light emitted by the light-emitting unit 4 undergoes light diffusion, transmission, refraction, diffraction, and other phenomena at different positions, thereby obtaining different light patterns. In one embodiment of the present invention, the lampshade 5 and the mounting part 1 can be connected by screws. Specifically, the lampshade 5 has screw holes, and the mounting part 1 is provided with threaded holes that mate with the screw holes. By using a screw that passes through the screw holes and is threadedly connected to the threaded holes, the lampshade 5 is pressed tightly onto the mounting part 1, thereby achieving a fixed connection between the lampshade 5 and the mounting part 1.

[0149] In another embodiment of the present invention, the lampshade 5 and the mounting part 1 can also be fixedly connected by multiple fixing units 6. The lampshade 5 does not need to be provided with screw holes, so that the lampshade 5 and the mounting part 1 together form a receiving cavity 11 as a sealed chamber, which can prevent moisture from entering the receiving cavity 11 and damaging the light-emitting element 4.

[0150] Specifically, a portion of the fixing unit 6 is connected to the mounting part 1, and another portion is connected to the lampshade 5, so that the lampshade 5 is connected to the mounting part 1. At least some of the fixing units 6 are distributed on opposite sides of the lampshade 5 to fix the opposite sides of the lampshade 5.

[0151] Referring further to Figures 5 to 7, the fixing unit 6 may specifically include a fixing part 61 and a fixing member 62. The fixing part 61 is connected to the mounting part 1, and preferably the fixing part 61 is an integral structure with the mounting part 1, and can be formed together with the lighting fixture housing 100 when the housing 100 of the lighting fixture is formed by an integral die-casting process. The fixing part 61 has a fixing groove 611 for mating with the fixing member 62.

[0152] The fastener 62 includes a first connecting portion 621 and a second connecting portion 622 that are interconnected. The first connecting portion 621 and the second connecting portion 622 are preferably an integral structure, meaning the fastener 62 is integrally formed by stamping from a single material, with one end of the fastener 62 bent to form the second connecting portion. The first connecting portion 621 and the second connecting portion 622 are substantially perpendicular. The first connecting portion 621 is perpendicular to the light-emitting surface of the lighting fixture and is inserted into the lighting fixture. The second connecting portion 622 is parallel to the light-emitting surface of the lighting fixture and is pressed against the light-emitting surface of the lighting fixture to fix the lampshade 5. At least a portion of the first connecting portion 621 is received within a fixing groove 611, and the first connecting portion 621 is press-fitted with the fixing portion 61 having the fixing groove 611, so that the fastener 62 can be fixed to the fixing portion 61. Specifically, the first connecting portion 621 may include a first sidewall 6211 and a second sidewall 6212 that are interconnected. The first sidewall 6211 is inclined relative to the second sidewall 6212, and the first sidewall 6211 can rotate toward the second sidewall 6212 when compressed, storing elastic potential energy. In the relaxed state, the side of the first sidewall 6211 facing away from the second sidewall 6212, and the maximum distance between them is greater than the width of the fixing groove 611. That is, the maximum distance from the farthest end of the first sidewall 6211 to the surface of the second sidewall 6212 (the surface of the second sidewall 6212 used to fix the first sidewall 6211) is greater than the width of the fixing groove 611. When the fastener 62 is installed on the fixing part 61, the second sidewall 6212 and the first sidewall 6211 abut against a pair of opposing sidewalls of the fixing groove 611, and the first sidewall 6211 is squeezed and rotates toward the second sidewall 6212 so that the side of the first sidewall 6211 away from the side of the second sidewall 6212, and the maximum distance between the side of the second sidewall 6212 away from the side of the first sidewall 6211 is equal to the width of the fixing groove 611, that is, the maximum distance from the farthest end of the first sidewall 6211 to the surface of the second sidewall 6212 (this surface refers to the surface of the second sidewall 6212 used to fix the first sidewall 6211) is equal to the width of the fixing groove 611. At this time, the first sidewall 6211 stores elastic potential energy, and the fastener 62 and the fixing part 61 are interference-fitted, so that the fastener 62 is fixed to the fixing part 61.

[0153] At least a portion of the second connecting part 622 abuts against the outer end face of the lampshade 5, and by controlling the length of the first connecting part 621 extending into the fixing groove 611, the position of the second connecting part 622 can be adjusted so that the second connecting part 622 can press the lampshade 5 against the mounting part 1, thereby achieving a fixed connection between the lampshade 5 and the mounting part 1.

[0154] In other embodiments of the present invention, the lampshade 5 can also be fixed by means of glue or clips.

[0155] In another embodiment of the present invention, the surface of the lampshade 5 is provided with a micro-array optical structure, such as a micro-structure array of protrusions, depressions or slopes, so that the lampshade has different light emission effects.

[0156] Referring to Figure 8, which is a schematic diagram of the overall front structure of a lighting fixture according to another embodiment of the present invention, the lighting fixture also includes a housing 100. The housing 100 is roughly rectangular when viewed from above. A connecting portion 9 extending parallel to the length direction is provided along the length of the rectangle. Mounting portions 1 are provided on both sides of the connecting portion 9 along its width direction. The mounting portions 1 can be used to mount a light-emitting element 4 and a heat-dissipating portion 3. The light-emitting element 4 and the heat-dissipating portion 3 are disposed on different surfaces of the mounting portion 1, or in other words, on opposite surfaces of the mounting portion 1, i.e., stacked in the light-emitting direction. In actual use, the heat-dissipating portion 3 is located above the light-emitting element 4, allowing the heat generated by the light-emitting element 4 to be effectively dissipated to the heat-dissipating portion 3. In one embodiment of the present invention, at least one heat-dissipating fin 31 is provided on the heat-dissipating portion 3. The heat-dissipating fin 31 extends along the length direction of the lighting fixture. The lighting fixture includes multiple heat-dissipating fins 31, which are arranged at intervals of a certain distance. The heat dissipation fin 31 has a flat surface, and a strip-shaped gas flow channel extending along the length of the lighting fixture is formed between the two heat dissipation fins 31. Preferably, the surface of the heat dissipation fin 31 is a smooth and flat surface, so that the interior of the formed gas flow channel is smooth and flat and does not affect the gas flow channel.

[0157] In one embodiment of the present invention, a plurality of heat dissipation grooves 91 are provided on the two side walls of the connecting part 9 facing the heat dissipation part 3. The heat dissipation grooves 91 penetrate through the side walls of the connecting part 9, so that the interior and exterior of the connecting part 9 are connected to achieve rapid gas exchange (gas flow). In some embodiments, the connecting part 9 has a space for installing a power supply component (not shown in the figure). The power supply component is also one of the main heat-generating components in the lighting fixture, and it will also face heat dissipation problems in actual operation. The heat dissipation grooves 91 provided on the side walls of the connecting part 9 can effectively dissipate heat from the power supply, thereby maintaining the efficient and stable operation of the lighting fixture.

[0158] Referring to Figure 9, which is an exploded view (front view) of a lighting fixture according to an embodiment of the present invention, and in conjunction with Figure 10, the housing 100 includes at least two mounting portions 1 and one connecting portion 9. The mounting portions 1 serve as the mounting body, and the connecting portion 9 is disposed between the two mounting portions 1. The connecting portion 9 protrudes upward to form an internal space with a power supply assembly. The mounting portions 1 include light source mounting portions 10, with two light source mounting portions 10 respectively disposed on both sides of the connecting portion 9. The light source mounting portions 10 are provided with multiple hollow slots 12, which are used to expose the light source and allow light to pass through. On the back side of the light source mounting portions 10, i.e., away from the light emission direction of the lighting fixture 100, light-emitting elements 4 are stacked. The light-emitting elements 4 include a lamp plate 41 and a light-emitting body 42 disposed on the lamp plate 41. The light-emitting body 42 is disposed on the surface of the lamp plate 41 near the light source mounting portions 10, and the light emitted by the light-emitting body 42 can pass through the hollow slots 12.

[0159] In one embodiment of the present invention, the light-emitting element 42 is an LED chip array, and a plurality of LED chip arrays are disposed on the lamp board 41, wherein each LED chip array corresponds to a hollow slot 12, that is, the light emitted by the LED chip array can pass through the hollow slot 12 and be emitted, and the number of hollow slots 12 is greater than or equal to the number of LED chip arrays. A heat dissipation part 3 is stacked on the surface of the light-emitting element 4 away from the light source mounting part 10, and the heat generated by the light-emitting element 4 during operation is quickly conducted to the outside and dissipated through the heat dissipation part 3.

[0160] A lampshade 5 is provided in the light-emitting direction of the light source mounting part 10 (or mounting part 1). The lampshade 5 covers the light source mounting part 10 (or mounting part 1) and completely covers the light-emitting body 42. The light emitted from the light-emitting body 42 is light-processed and finally emitted from the lighting fixture.

[0161] The lampshade 5, mounting part 1, light-emitting element 4, and heat dissipation part 3 are stacked sequentially in the opposite direction to the light emission direction of the lighting fixture, and a certain gap is left between the light-emitting element 4 and the lampshade 5 to form a certain gas space to facilitate heat dissipation. End caps 54 are provided at both ends of the lampshade 5, mounting part 1, light-emitting element 4, and heat dissipation part 3 along the length direction. The end caps 54 encapsulate the above components and support or abut against each other in mechanical structure, thereby improving the overall reliability of the lighting fixture (the above components may also include fixing structures such as adhesive, screw fixing, snap-fit, magnetic attraction, welding, etc.).

[0162] The light source mounting portion 10 and the connecting portion 9 are connected by a bending portion 92. In another embodiment, the light source mounting portion 10 and the connecting portion 9 are integrally formed on the same sheet metal, for example, by stamping. The height of the light source mounting portion 10 (or heat dissipation portion 3) is less than the height of the connecting portion 9, meaning that the light source mounting portion 10 (or heat dissipation portion 3) on both sides of the connecting portion 9 does not obstruct heat dissipation from the connecting portion 9. Therefore, there is a height difference between the connecting portion 9 and the light source mounting portion 10 (or heat dissipation portion 3) along the light emission direction of the lighting fixture. The lampshade 5 includes a vent 51 and at least one light processing element. The light processing element includes a first optical component 52 and a second optical component 53. The first optical component 52 and the second optical component 53 can be integrally formed or separately formed. The first optical component 52 is made of a light-transmitting material and covers the side of the light source mounting portion 10 along the light emission direction of the lighting fixture. The second optical component 53 covers the side of the connecting portion 9 along the light emission direction of the lighting fixture. The second optical component 53 can be made of a light-transmitting material or an opaque material. The first optical component 52 and the second optical component 53 can be made of materials such as plastic, resin, and glass, or a combination thereof.

[0163] Between the first optical component 52 and the second optical component 53, a plurality of vent holes 51 are provided along their length. The position of the vent holes corresponds to the bend 92. The bend 92 may also be provided with corresponding vent holes (not shown in the figure), so that the lighting fixture also has a through airflow channel along the light emission direction, so that the airflow can directly convect from the light emission side of the lighting fixture to the back side of the lighting fixture, that is, the side opposite to the light emission direction, and dissipate into the external environment, thereby quickly removing the heat generated by the lighting fixture when it is working.

[0164] In one embodiment of the present invention, the first optical component 52 is disposed on both sides of the second optical component 53, or in other words, the first optical component 52 is disposed on the outside of the second optical component 53, that is, the first optical component 52 is disposed below the light source mounting part 10 (that is, along the light emission direction of the lighting fixture, the part away from the light emission direction is the bottom), and the second optical component 53 is disposed below the connecting part 9, and the first optical component 52 and the second optical component 53 are integrally formed.

[0165] Referring to Figure 10, which is a schematic diagram of the light-emitting element 4 in an embodiment of the present invention, the light-emitting element 4 includes a lamp board 41 and a plurality of light-emitting bodies 42 disposed on the lamp board 41. The lamp board 41 is provided with a circuit structure that can conduct the light-emitting bodies 42. The light-emitting bodies 42 emit light by being powered by a lighting fixture. The light-emitting bodies 42 can be an LED chip array (or an LED lamp bead array) that are arranged at equal or non-equal intervals.

[0166] Referring to Figures 9, 10, 11, 12A, and 12B, Figure 11 is a cross-sectional view of the lighting fixture along its width in one embodiment of the present invention; Figure 12A is a schematic diagram of the lighting fixture with some components hidden on the back; and Figure 12B is a schematic diagram of the installation positions of the light source mounting part, the light-emitting element, and the heat dissipation part in one embodiment. As shown in Figures 9, 11, and 12B, the light-emitting element 4 is stacked on the light source mounting part 10. The surface of the light source mounting part 10 on which the light-emitting element 4 is disposed can be a flat surface or a groove-shaped surface that is low in the middle and high on both sides. When it has a groove-shaped surface, the light-emitting element 4 is at least partially accommodated in the groove of the groove-shaped surface, and at least part of the heat dissipation part 3 is accommodated in the groove structure of the groove-shaped surface. In one embodiment, the surface of the lamp plate 41 in the light-emitting element 4 facing the lampshade 5 (or the surface along the light emission direction) is attached to the surface of the light source mounting part 10, and the surface of the lamp plate 41 away from the light emission direction is attached to the surface of the heat dissipation part 3. In other words, the lamp plate 41 has a first surface and a second surface facing each other. A plurality of light-emitting elements 42 are disposed on the first surface, the light source mounting part 10 is attached to the first surface, and the heat dissipation part 3 is attached to the second surface. The materials of the light source mounting part 10 and the heat dissipation part 3 can be selected from metal materials with fast thermal conductivity and heat dissipation, so as to quickly conduct and dissipate the heat generated by the operation of the light-emitting element 4.

[0167] In one embodiment of the present invention, the lamp plate 41 and the first optical component 52 are spaced apart by a certain distance, and a cavity is formed between them along their length direction for heat dissipation; the lamp plate 41 and the surface of the heat dissipation part 3 can also be spaced apart by a certain distance to form a cavity for heat dissipation; air flows through the cavity.

[0168] Referring to Figure 12A, the light source mounting portion 10 has a hollowed-out groove 12. The hollowed-out grooves 12 are arranged along the width direction of the light source mounting portion 10 and are parallel to each other. The light-emitting body 42 is positioned corresponding to the hollowed-out groove 12 and is exposed through the hollowed-out groove 12. The light emitted by the light-emitting body 42 can pass through the hollowed-out groove 12 and be directly emitted to the first optical component 52. Of course, in some embodiments, the hollowed-out grooves 12 may not be parallel, that is, there may be an included angle between the hollowed-out grooves 12.

[0169] Referring to Figure 13, which is a top view of a lighting fixture according to an embodiment of the present invention, a heat dissipation channel 2 is provided between the connecting part 9 and the light source mounting part 10. The heat dissipation channel 2 is formed in the bending part 92 and is connected vertically in conjunction with the vent hole 51. That is, the heat dissipation channel 2 is approximately perpendicular to the lampshade 5, or the heat dissipation channel 2 extends along the light emission direction of the lighting fixture or away from the light emission direction, and passes through the lighting fixture, so that the gas on the light emission side of the lighting fixture can directly exchange gases with the gas on the back side (away from the light emission side) of the lighting fixture through the heat dissipation channel 2.

[0170] In one embodiment of the present invention, the connecting part 9 has two surfaces that are approximately perpendicular to the lampshade 5, or in other words, the sidewall of the connecting part 9. A heat dissipation groove 91 may be further provided on the sidewall of the connecting part 9.

[0171] In one embodiment of the present invention, the light source mounting part 10 in the mounting part 1 can rotate relative to the connecting part 9, that is, the light emission angle of the lighting fixture can change with the rotation of the light source mounting part, that is, the light emission angle of the lighting fixture can be adjusted according to the requirements.

[0172] Referring to Figure 14, which is a schematic diagram of the lighting fixture in another embodiment of the present invention, the lighting fixture includes a connecting part 9 and a light source mounting part 10 movably connected to both sides of the connecting part 9. A heat dissipation part 3 is provided on the light source mounting part 10. The heat dissipation part 3 includes a plurality of heat dissipation fins 31 (not shown) extending along the length direction of the lighting fixture. The largest surface (heat dissipation surface) of the heat dissipation fins 31 is approximately perpendicular to the light emitting surface of the lighting fixture (the light emitting surface can be a horizontal plane in the light emitting direction of the lighting fixture, or in the present invention, it can be the lampshade 5). The heat dissipation surfaces of the heat dissipation fins 31 are parallel to each other and form an airflow channel along the length direction of the lighting fixture, that is, approximately parallel to the lampshade 5. A plurality of ventilation windows 13 are provided on the side wall of the light source mounting part 10. The ventilation windows 13 allow gas flow to be realized along the width direction of the lighting fixture, that is, part of the gas in the airflow channel of the heat dissipation part 3 is exchanged with the outside of the lighting fixture through the ventilation windows 13.

[0173] Multiple heat dissipation grooves 91 are provided on the side wall of the connecting part 9, allowing the interior of the connecting part 9 to communicate with the external environment and achieve gas exchange. In this embodiment, the lighting fixture also includes end caps 54, which include a first end cap 540 and a second end cap 541. The first end cap 540 is fixed to both ends of the connecting part 9, and the second end cap 541 is fixed to both ends of the light source mounting part 10. The first end cap 540 includes a rotatable engagement area 5400 for connecting and fixing the second end cap 541, and the second end cap 541 is fastened to the end of the light source mounting part 10. The first end cap 540 then covers the side of the second end cap 541 away from the light source mounting part 10, and the first end cap 540 covers at least a part of the second end cap 541. The first end cap 540 and the second end cap 541 are connected by bolts, rivets, or other rotatable fixing structures.

[0174] Referring to Figure 15, which is a schematic diagram of the lampshade in this embodiment of the present invention, the lampshade 5 includes a first optical component 52 and a second optical component 53. The first optical component 52 and the second optical component 53 are independent of each other and are spaced apart by a certain distance. The first optical component 52 is fixed to the light source mounting part 10, and the second optical component 53 is fixed to the connecting part 9. There is a gap 55 between the light source mounting part 10 and the connecting part 9. The gap 55 provides a heat dissipation channel, that is, the heat dissipation channel 2 is disposed between the mounting part 1 (or the light source mounting part 10) and the connecting part 9. In addition, the width of the gap 55 is greater than or equal to the thickness of the light source mounting part 10. This design avoids interference between the light source mounting 10 and the connecting part 9 during rotation. The light source mounting part 10 can rotate relative to the connecting part 9, meaning the first optical component 52 and the second optical component 53 can rotate relative to each other. Their relative positions and angles can take various forms; for example, the relative angle between the first optical component 52 and the second optical component 53 can be -120° to 180°, such as 30°, 60°, or 90°. Furthermore, the first optical component 52 and the second optical component 53 are independently formed and spaced a certain distance apart.

[0175] In some embodiments, the sidewall of the connecting portion 9 may also be an inwardly curved shape, such as a concave curved shape, thereby reducing the width of the gap 55 or even eliminating the gap 55.

[0176] Referring to Figure 16, which is a view of the lighting fixture along its length in an embodiment of the present invention, as shown, the end cover window 5410 faces the airflow channel formed by the heat dissipation fins 31 of the heat dissipation part 3. Gas can quickly exchange between the inside and outside of the lighting fixture through this airflow channel, thereby quickly removing the heat generated when the lighting fixture is working (or the heat generated by the light source or light-emitting component of the lighting fixture). Referring to the enlarged view of the rotating joint 5400 in Figure 16, an arc-shaped window 5401 is also provided on the first end cover 540. The edge of the arc-shaped window 5401 is provided with limiting teeth 5402 and limiting grooves 5403. The limiting teeth 5402 and limiting grooves 5403 are spaced apart from each other and arranged along the arc-shaped long side of the arc-shaped window 5401. An angle scale is also provided on the edge of the arc-shaped window 5401, and the angle of the light source mounting part 10 can be accurately adjusted according to the angle scale. The second end cap 541 is provided with a limiting post 5411, which can slide relative to the second end cap 541. That is, the limiting post 5411 can be moved and engaged in the limiting groove 5403, or it can be moved out of the limiting groove 5403. When the limiting post 5411 is disengaged from the limiting groove 5403, the light source mounting part 10 can rotate relative to the connecting part 9 to adjust the light emission angle of the lighting fixture. When the limiting post 5411 is engaged in the limiting groove 5403, the light source mounting part 10 is fixed relative to the connecting part, and the limiting tooth 5402 protrudes outward to prevent the limiting post 5411 from sliding out of the limiting groove 5403.

[0177] In this embodiment of the invention, each first end cap 540 is provided with two rotating joints 5400, that is, with two arc-shaped openings 5401, and each second end cap is provided with at least one limiting post 5411.

[0178] Referring to Figures 17 and 18, Figure 17 is an exploded view of the back of the lighting fixture in this embodiment of the present invention, and Figure 18 is a schematic diagram of the light source mounting portion 10 in this embodiment of the present invention. As shown, the lighting fixture includes two first end caps 540, which are respectively disposed at two ends of the connecting portion 9 along the length direction (the first end caps 540 can be separately formed from the connecting portion 9, or they can be integrally formed with the connecting portion 9). The first end caps 540 extend a certain distance to both sides along the width direction to form a rotating connection area 5400. The lighting fixture also includes a light source mounting portion 10, on which a heat dissipation portion 3 is also provided. The heat dissipation portion 3 can be separately formed from the light source mounting portion 10 and then assembled, or it can be integrally formed with the light source mounting portion 10. In this embodiment of the present invention, the heat dissipation portion 3 is integrally formed on the light source mounting portion 10. The heat dissipation portion 3 is provided on one side of the light source mounting portion 10, and a light-emitting element 4 is provided on the other side opposite to the heat dissipation portion 3. The heat dissipation portion 3 and the light-emitting element 4 are stacked along the light emission direction. In this embodiment of the invention, the light-emitting element 4 and the light source mounting part 10 are connected by a snap-fit ​​mechanism.

[0179] In this embodiment, the light source mounting part 10 and the heat dissipation part 3 are integrally formed. The light source mounting part 10 has two opposing surfaces. Multiple integrally formed heat dissipation fins 31 are provided on one surface of the light source mounting part 10, and the multiple heat dissipation fins 31 constitute the heat dissipation part 3. The other surface of the light source mounting part 10 is a mounting surface, including a mounting bottom surface 140 and mounting grooves 14 formed by the protrusions on both sides of the mounting bottom surface 140 and the mounting bottom surface 140. Multiple mounting tracks 141 extending along the length direction of the lighting fixture are provided on the mounting bottom surface 140 and the protrusions on both sides. Each mounting track 141 has a bent portion, which forms an engaging space with the mounting bottom surface 140 to engage the light-emitting element 4.

[0180] Referring to Figure 19, which is a schematic diagram of the lighting fixture after the second end cap is removed in this embodiment of the present invention, and in conjunction with Figures 10, 17, and 18; as shown in Figure 19 and its partial enlarged schematic diagram, the light-emitting element 4 is inserted from one end of the light source mounting part 10, that is, the lamp plate 41 of the light-emitting element 4 is engaged with the engagement space formed by the mounting track 141 and the bottom surface 140 to fix the light-emitting element 4. The light-emitting element 4 can be completely fixed in the light source mounting part 10 through the mounting track 141.

[0181] In some embodiments of the present invention, the number of mounting tracks 141 is at least two, and the mounting tracks 141 are symmetrically arranged along both sides of the mounting base 140. The distance between the two opposing mounting tracks 141 can be varied, that is, the mounting tracks 141 can accommodate light-emitting elements 4 of different sizes.

[0182] In some embodiments of the present invention, the surface of the mounting groove 14 has a light reflection function, which can reflect at least part of the light emitted by the light-emitting element 4.

[0183] In this invention, the light source mounting part 10, the heat dissipation part 3, and the connecting part 9 can be made of metal materials.

[0184] Figure 20 is a separate schematic diagram of the connecting part 9 in this embodiment of the present invention. As shown in the figure, the first end cap 540 is integrally formed with both ends of the connecting part 9 along the length direction. The first end cap 540 extends a certain distance on both sides along the width direction of the connecting part to form a rotational engagement area 5400. The end of the rotational engagement area 5400 is arc-shaped, or semi-circular.

[0185] Figure 21 shows a schematic diagram of the light-emitting element 4 in one embodiment of the present invention, which includes a lamp board 41 and light-emitting bodies 42 disposed on the lamp board. The light-emitting bodies 42 can be LED chips or LED beads, and they are arranged at equal intervals along the length direction of the lamp board 41. Of course, the spacing between the light-emitting bodies 42 can also be set according to the requirements, and the arrangement of the light-emitting bodies 42 can also be adjusted according to the requirements. For example, there are at least two types of spacing between the light-emitting bodies 42, such as the light-emitting bodies 42 being arranged in an arc along the length direction of the lamp board 41. Figures 10 and 21 are only for distance illustration and not for limitation.

[0186] In some embodiments of the present invention, the light processing elements (first optical component 52, second optical component 53) in the lampshade 5 can be planar or have an optical surface with an arc-shaped structure.

[0187] Referring to Figures 22A, 22B, and 22C, these are schematic diagrams showing the light source mounting part 10 and the connecting part 9 at different angles in this embodiment of the invention. Figure 22A shows the configuration at a 90-degree angle. In this configuration, the lighting fixture occupies a smaller volume during packaging and transportation, and is easier to stack for transport. Figure 22B shows the configuration at a negative 30-degree angle. In this configuration, the light emitted by the light source mounting part 10 is concentrated, suitable for applications requiring high brightness but with small areas. Figure 22C is a schematic diagram of the configuration at a 60-degree angle, where the light emitted by the light source mounting part 10 is diffused, suitable for wide areas with low illumination. The configuration shown in Figure 14 is suitable for general applications, such as warehouses or corridors. Of course, the above angles are just examples, and the size of the angle can be adjusted according to actual needs.

[0188] Referring to Figure 23, which is a schematic diagram of a lighting fixture according to another embodiment of the present invention, it includes two mounting portions 1 and a connecting portion 9 fixed between the two mounting portions 1. The connecting portion 9 is arranged along the length direction of the mounting portions 1. The connecting portion 9 is wholly or at least partially supported by the mounting portions 1. The connecting portion 9 and the mounting portions 1 are fixed together by screws via positioning plates 101 located at both ends of the mounting portions 1 along the length direction. The two ends of the connecting portion 9 along the length direction have end caps 54 integrally formed with the connecting portion 9, which can also be referred to as the ends or end faces of the connecting portion 9. That is, the ends of the connecting portion 9 are connected and fixed to the mounting portions 1 via the positioning plates 101. Multiple heat dissipation grooves 91 and 91' are provided on the side wall and top surface (top surface refers to the surface away from the mounting part 1) of the connecting part 9. The heat dissipation groove 91' is located on the top surface of the connecting part 9 and also includes a dustproof eaves cover located above the heat dissipation groove 91' and maintaining a certain distance from the heat dissipation groove 91'. That is, the dustproof eaves cover is located above the heat dissipation groove 91' and does not close the heat dissipation groove 91'. While meeting the heat dissipation requirements, it can also block foreign objects and prevent foreign objects from falling into the interior of the connecting part 9 and affecting the operation of the lighting fixture.

[0189] Referring to Figure 24, which is an enlarged schematic diagram of point B in Figure 23, each heat dissipation slot 91' is covered with a dustproof eave 910. The dustproof eave 910 has a certain curvature, arching away from the heat dissipation slot 91' to form an opening structure facing one side, that is, the opening faces the outside of the connecting part 9. This ensures that when the hotter air inside the connecting part 9 flows out, it will not cause airflow collision due to the two openings being opposite each other, and heat accumulation will not affect the heat dissipation of the connecting part 9. The dustproof eave 910 can be integrally formed on the connecting part 9 by stamping process, or it can be formed separately and then fixed to the connecting part 9 by means such as glue or welding.

[0190] Referring to Figure 25, which is a schematic diagram of the back of a lighting fixture according to an embodiment of the present invention, as shown, the mounting part 1 is combined with the lampshade 5, that is, the mounting part 1 is encapsulated by the lampshade 5 along one side of the light emission direction of the lighting fixture. The lampshade 5 includes a first optical component 52 and a second optical component 53. In some embodiments, the first optical component 52 and the second optical component 53 can be integrally formed from the same or different materials, or they can be separately formed from the same or different materials. In some embodiments, the surface of the second optical component 53 is provided with a plurality of heat dissipation holes 530 arranged in a row. The aperture of the heat dissipation holes 530 can be multiple, or in other words, the surface of the second optical component 53 is provided with at least two or more apertures of heat dissipation holes 530. Of course, the apertures of the heat dissipation holes 530 on the surface of the second optical component 53 can also be the same. A sensor receiving hole 531 is also provided on the second optical component 53, and a sensor 532 is provided inside. The sensor 532 is at least partially disposed in the sensor receiving hole 531. The sensor 532 can sense the external environment or the internal environment of the lighting fixture, such as light intensity, temperature, humidity and other information, and feed back this environmental information to the lighting fixture and control the light output effect of the lighting fixture accordingly, such as controlling the light intensity and color temperature of the lighting fixture.

[0191] Referring to Figure 26, which is an exploded view of a lighting fixture according to an embodiment of the present invention. As shown, the mounting part 1 is integrally formed and can be integrally formed by stamping, embossing, stretching, extruding or bending of metal material. The mounting part 1 includes a second optical component 53 located in the middle. Two positioning plates 101 are respectively provided at both ends of the second optical component 53 along the length direction. The positioning plates 101 extend from the second optical component 53 toward the connecting part 9. The positioning plates 101 and the end cap 54 are provided with mutually matched through holes for screw structures to pass through and fix the positioning plates 101 and the end cap 54. That is, the connecting part 9 is directly stacked on the second optical component 53. When a heating element (such as a heating element) is provided in the connecting part 9, When the power is on, the heat dissipation hole 530 on the second 53 allows the cooler ambient air to directly enter the interior of the connecting part 9. Because the height of the heat dissipation groove 91' and heat dissipation groove 91 on the connecting part 9 is higher than the height of the heat dissipation hole 530 (see Figure 25) when the lighting fixture is in normal use (i.e., the light output direction is downward), and the warmer air will rise, that is, the air inside the connecting part 9 will rise due to heat and flow out from the heat dissipation groove 91' and heat dissipation groove 91. It will form a convection with the ambient air through the heat dissipation hole 530, thus forming a similar air suction effect, that is, forming a directional airflow, thereby improving the heat dissipation performance.

[0192] Light source mounting portions 10 are respectively provided on both sides of the second optical component 53 along its length, meaning the second optical component 53 is held by the light source mounting portions 10 located on both sides. It is worth noting that the second optical component 53 and the light source mounting portions 10 located on both sides are integrally formed from metal material, providing good heat dissipation performance and enabling rapid conduction and dissipation of heat generated during the operation of the lighting fixture. The light source mounting portion 10 includes a flat base plate 102 and a side wall 103 surrounding the base plate 102. The base plate 102 and the side wall 103 form a recessed accommodating space, within which at least part or all of the light-emitting element 4 is disposed. In this embodiment of the invention, each light source mounting portion 10 has at least two light-emitting elements 4 arranged along its length. The end of the side wall 103 away from the base plate 102 is folded outwards towards the outside of the recess to form a mounting eave parallel to the base plate 102, used to fix the second optical component 52. The two can be fixed together by adhesive, snap-fit, or other methods.

[0193] Referring to Figure 27, which is a schematic diagram of the back of the lighting fixture after the second optical component has been removed according to an embodiment of the present invention. As shown in the figure, the light-emitting element 4 is attached to the base plate 102 of the light source mounting part, and is arranged along the length direction of the light source mounting part 10, occupying at least 60% of the length of the light source mounting part 10. In this embodiment of the present invention, each base plate 102 of the light source mounting part 10 is covered with two parallel light-emitting elements 4 spaced a certain distance apart. Of course, the light-emitting elements 4 can also be set by means of snap-fit ​​or welding.

[0194] The light-emitting elements 4 can also be arranged to be interleaved, or at least partially disposed on the base plate 102 of the light source mounting part, or at least partially disposed on the side wall 103 of the light source mounting part.

[0195] In this invention, the lampshade 5, or the first optical component 52 and the second optical component 53, includes at least one or more functions of light transmission, refraction, reflection, or diffraction.

[0196] In some embodiments of the present invention, the lighting fixture also includes a hanging support structure, as shown in FIG28. The hanging support structure is provided at both ends of the lighting fixture along the length direction. The hanging support structure can be an arc-shaped bending structure, and the number is at least one. Of course, it can also be provided at both ends along the width direction. The hanging support structure is connected to the lighting fixture through through holes at both ends of the lighting fixture, and the hanging support structure can rotate relative to the lighting fixture. For ease of description, the hanging support structure is named hanging support 15. As shown in Figure 28, the hanging support 15 is disposed at both ends of the lighting fixture along its length. In this embodiment of the invention, the hanging support 15 includes at least one first hanging support 151 and at least one second hanging support 152. The first hanging support 151 and the second hanging support 152 can be formed by bending metal rods or metal strips, or they can be formed by other materials such as plastic. The first hanging support 151 and the second hanging support 152 can be a strip-shaped or rod-shaped structure of one piece, or a multi-segment chain structure. The first hanging support 151 and the second hanging support 152 each include at least one arc-shaped structure pointing towards the lighting fixture and an arc-shaped structure pointing away from the lighting fixture.

[0197] Referring to Figure 29, which is a partial enlarged view of point C in Figure 28, the heat dissipation part 3 provided on the mounting part 1 includes a plurality of heat dissipation fins 31 that are parallel to each other and perpendicular to the light-emitting surface of the lighting fixture. In one embodiment, the heat dissipation fins 31 are integrally formed on the side of the mounting part 1 away from the light-emitting direction of the lighting fixture, and at least partially contact the connecting part 9, which can effectively conduct the heat generated by the lighting fixture during operation to the external environment to achieve efficient heat dissipation.

[0198] The mounting part 1, located away from the light-emitting surface of the lighting fixture, may also be provided with a raised heat-dissipating arc surface 32. The heat-dissipating arc surface 32 increases the contact area between the gas inside the lighting fixture and the mounting part 1 and / or the heat dissipation fins 31 (or heat dissipation part 3), and simultaneously increases the contact area between the gas outside the lighting fixture and the mounting part 1 and / or the heat dissipation fins 31. This improves the heat exchange / heat conduction efficiency between the gas inside and outside the lighting fixture and the mounting part 1 and / or the heat dissipation fins 31, thereby enhancing the overall heat dissipation capacity of the lighting fixture. The number of heat-dissipating arc surfaces 32 may be one or more, and they may be integrally formed on the mounting part 1 by stamping or die casting.

[0199] Referring to Figure 30, which is a partial enlarged view of point D in Figure 28, as shown, a first hanging hole 1510 corresponding to the first hanging member 151 is provided on the housing 100 of the lighting fixture, and a second hanging hole 1520 corresponding to the second hanging member 152 is provided on the side wall of the connecting part 9. The ends of the first hanging member 151 and the second hanging member 152 are provided with bent portions opposite to their gravity direction. The bent portions pass through the first hanging hole 1510 / second hanging hole 1520, so that the lighting fixture will not detach from the hanging member 15 when installed.

[0200] Referring to Figure 31, which shows the form of the hanging support 15 in another embodiment of the present invention, the hanging support 15 includes two first connecting frames 153 that are directly fixed to the connecting part 9. The first connecting frames 153 are concave in shape and are fixed to the two side walls of the connecting part 9 by means of screws, rivets, fastening or welding. It also includes a mounting surface that is basically parallel to the top surface of the connecting part 9. At least part of a second connecting frame 154 is superimposed on the mounting surface. In other words, the second connecting frame 154 is mounted between the two first connecting frames 153. The second connecting frame 154 is generally parallel to the connecting part 9 and is fixed to the first connecting frame 153 by means of screws, rivets, fastening or welding.

[0201] The hanging bracket 15 also includes a third connecting bracket 155, which is generally perpendicular to the connecting part 9. Part of the third connecting bracket 155 is stacked on the second connecting part, and part is fixed to the side wall of the connecting part 9. Multiple mounting holes are provided on the side wall of the connecting part 9. The installation position of the third connecting bracket 155 can be adjusted as needed along the length of the second connecting bracket 154, or the connecting part 9. A connecting rod 156 is also provided on the top surface of the third connecting bracket 155 parallel to the connecting part 9. A locking plate 157 is provided at the end of the connecting rod 156. Multiple locking holes 1570 are provided on the locking plate 157. By passing bolts through the locking holes 1570, the locking plate 157 can be fixed to the installation environment (such as a ceiling, beam, etc.), thereby achieving the fixation of the lighting fixture.

[0202] In some embodiments, the connecting rod 156 is configured to be telescopic, and its length can be adjusted as needed.

[0203] In some embodiments of the present invention, different forms of the hanging support shown in Figures 28 and 31 can coexist. The specific form is shown in Figure 32. The coexistence of different forms of hanging support can improve the reliability of lamp fixing to a certain extent and adapt to complex fixing environments.

[0204] Please refer to Figure 33, which is a schematic diagram of the light-emitting surface of a lighting fixture according to an embodiment of the present invention. A lampshade 5 is provided on the light-emitting surface. The lampshade 5 includes a light processing element, a first optical component 52 and a second optical component 53. The first optical component 52 and the second optical component 53 can be integrally formed or can be formed separately and then assembled together. The first optical component 52 and the second optical component 53 can be fixed by means of adhesive, screws, rivets, clips, etc.

[0205] Please refer to Figure 34, which is a schematic diagram of the first optical component 2 in one embodiment of the present invention. The surface of the first optical component 52 (or the second optical component) is provided with a microstructure array, wherein the microstructure array can be a micro-protrusion or a micro-recessed structure, that is, the microstructure array has a continuously undulating micro-surface, which can diffuse and homogenize light, effectively improve the uniformity of light output, and prevent glare. As shown in the partial enlarged view of Figure 34, the microstructure array is set as a continuously arranged array of micro-convex lenses. Under the microstructure, the light-emitting surface of the lighting device has continuously undulating light-emitting surfaces pointing in different directions, resulting in more uniform light output.

[0206] In some embodiments, the first optical component 52 and the second optical component 53 are provided with the same structural array;

[0207] In some embodiments, the first optical component 52 and the second optical component 53 are provided with different structural arrays;

[0208] In some embodiments, the second optical component 53 has a light guiding function, which can conduct the light emitted from the light-emitting element 4 in the light source mounting part 10, so that the second optical component 53 also presents a certain brightness.

[0209] Please refer to Figure 35, which is a schematic diagram of the rear of a lighting fixture according to an embodiment of the present invention. As shown in the figure, the lighting fixture is equipped with dimming and color-adjusting functions. A corresponding dimming knob 93 and a corresponding color-adjusting knob 94 are provided on the connecting part 9. Both the dimming knob 93 and the color-adjusting knob 94 can be provided with multiple adjustment levels. The dimming knob 93 can control the output power of the lighting fixture when it is working and adjust the light intensity. The color-adjusting knob 94 can adjust the output color temperature of the lamp, so that the lighting fixture can be used in a variety of usage environments and usage characteristics.

[0210] Please refer to Figure 36, which is an enlarged view of point E in Figure 35 of this invention. As shown, both the dimming knob 93 and the color-adjusting knob 94 are reciprocating knobs, and both can slide relative to the connecting part 9, thereby driving the internal adjustment mechanism to control the light output of the lighting fixture. In some other embodiments of this invention, dimming and color-adjusting control of the lighting fixture can also be achieved through a knob-type structure, a button-type structure, or other similar functional components. Dimming and color-adjusting can also include functions such as adjusting light intensity, adjusting color temperature, and adjusting the emitted light color.

[0211] Please refer to Figures 35 and 37, where Figure 37 is a schematic diagram of the back of a lighting fixture according to an embodiment of the present invention. As shown in the figure, a junction box 7 is provided at one end of the connecting part 9. The junction box 7 includes a wiring receiving space 73. The wiring receiving space 73 can be used to receive the internal and external connecting wires of the lighting fixture. At the same time, the wiring receiving space 73 can be used to store the connecting wires, which can make the overall layout of the lighting fixture more concise and neat, and at the same time avoid the connecting wires being exposed, thus affecting the service life.

[0212] In one embodiment of the present invention, the first optical component and the second optical component are provided with the same microarray structure.

[0213] In another embodiment of the present invention, the first optical component and the second optical component are provided with different microarray structures.

[0214] In another embodiment of the present invention, the first optical component and the second optical component are provided with at least one microarray structure.

[0215] Referring to Figure 38, which is a schematic diagram of the back of a lighting fixture according to another embodiment of the present invention, as shown in the figure, in this embodiment, the lighting fixture includes a connecting part 9 and a plurality of mounting parts 1 disposed on both sides of the connecting part 9 along the length direction. The connecting part 9 and the mounting parts 1 adopt a split structure design, and the connecting part 9 and the mounting parts 1 are connected and fixed by a plurality of transmission mechanisms 16. The transmission mechanism 16 is a pivoting mechanism, meaning it can rotate around a center or an axis. At least a portion of the transmission mechanism 16 is connected to and fixed to the connecting part 9, more specifically, fixed to the side of the connecting part 9. At least a portion of the transmission mechanism 16 is connected to and fixed to the mounting part 1, thereby allowing the mounting part 1 to rotate relative to the connecting part 9. That is, the angle between the connecting part 9 and the mounting part 1 can be adjusted. In other words, the angle between the plane where the mounting part 1 is located (such as the plane where the lampshade 5 is located as described above) and the plane where the side of the connecting part 9 (i.e., the heat dissipation groove 91 mentioned above) is located can change relatively, with a range of 0° to 270°. That is, the angle between the plane where the connecting part and the mounting part are located can at least change from a first angle to a second angle. In other words, the transmission mechanism 16 is adapted to change the angle between the plane where the mounting part 1 is located (such as the plane where the lampshade 5 is located as described above) and the plane where the side of the connecting part 9 (i.e., the heat dissipation groove 91 mentioned above) is located.

[0216] Referring to Figure 38, and in conjunction with the preceding description, multiple heat dissipation channels 2 are provided on both sides of the mounting part 1, i.e., on both sides along the length direction. Gas from the light-emitting surface of the lighting fixture can flow through these heat dissipation channels 2 to the back surface of the lighting fixture. This gas flow accelerates the heat exchange between the lighting fixture and the ambient air, thereby preventing heat buildup during operation. A heat dissipation part 3 is provided on the back surface of the lighting fixture, or the back surface of the mounting part 1. This heat dissipation part 3 includes multiple heat dissipation fins 31 arranged along the length direction of the mounting part 1, with adjacent heat dissipation fins parallel to each other. In one embodiment of the present invention, the heat dissipation fins 31 include at least a portion of elongated heat dissipation fins 310 and at least a portion of cylindrical heat dissipation fins 311. The heat convection on the surface of the cylindrical heat dissipation fins is better than that on the surface of the elongated heat dissipation fins, and the heat dissipation effect of the cylindrical heat dissipation fins is better than that of the elongated heat dissipation fins. However, the weight per unit length of the cylindrical heat dissipation fins is higher than that of the elongated heat dissipation fins. In order to improve the heat dissipation effect and at the same time ensure that the overall weight of the lighting fixture is not too high, the present invention adopts a combination of circular heat dissipation fins 311 and elongated heat dissipation fins 310 to form the heat dissipation fins 31, thereby further improving the heat dissipation capacity of the lighting fixture while controlling the overall weight. Meanwhile, the elongated heat dissipation fin 310 is directly connected to the cylindrical heat dissipation fin 311. The cylindrical heat dissipation fin 311 has a higher heat dissipation performance than the elongated heat dissipation fin 310. When the lighting fixture generates heat during operation, a temperature difference occurs between the cylindrical heat dissipation fin 311 and the elongated heat dissipation fin 310 due to the difference in heat dissipation performance. That is, the temperature of the cylindrical heat dissipation fin 311 is lower than that of the elongated heat dissipation fin 310. A portion of the heat from the elongated heat dissipation fin 310 is transferred to the cylindrical heat dissipation fin 311 through thermal conduction, and then dissipated by the cylindrical heat dissipation fin 311, thereby improving the overall heat dissipation performance of the lighting fixture. In other words, the combination of the cylindrical heat dissipation fin 311 and the elongated heat dissipation fin 310 improves the heat dissipation capacity per unit area of ​​the heat dissipation section 3 while controlling the weight. Furthermore, the number of cylindrical heat dissipation fins 311 in the central area of ​​the heat dissipation section 3 is greater than that in the outer areas on both sides. Since the airflow on the sides is higher than that in the central area of ​​the heat dissipation section when there are heat dissipation channels or gaps, the heat dissipation effect in the central area of ​​the heat dissipation section 3 is significantly improved by setting more cylindrical heat dissipation fins 311 in the central area of ​​the heat dissipation section 3. This results in a more uniform heat dissipation effect for the heat dissipation section 3 as a whole, meaning that the temperature difference in different parts of the heat dissipation section 3 is small, thus avoiding deformation and affecting the structure of the mounting section 1.

[0217] Referring to Figure 39, which is an exploded view of the lighting device and transmission mechanism 16 in one embodiment of the present invention, the transmission mechanism 16 includes a first transmission part 161 and a second transmission part 162. The first transmission part 161 is fixed to the side wall 90 of the connecting part 9, that is, on the side of the connecting part 9 where the heat dissipation groove 91 is provided; the second transmission part 162 is fixed to the mounting part 1. The first transmission part 161 and the second transmission part 162 are connected by a transmission shaft 163. That is, the first transmission part 161 and the second transmission part 162 are provided with shaft holes for the transmission shaft 163 to pass through. The transmission shaft 163 passes through the first transmission part 161 and the second transmission part 162 respectively, thereby realizing the fixed and rotational cooperation between the first transmission part 161 and the second transmission part 162. That is, under certain conditions, the first transmission part 161 and the second transmission part 162 can undergo relative rotational movement. A drive shaft spring 164 is fitted on the drive shaft 163. The drive shaft spring 164 is pre-deformed to a certain degree so that the first drive part 161 and the second drive part 162 can fit together without the action of other external forces. Under the action of external forces, the first drive part 161 and the second drive part 162 can separate from each other along the direction of the drive shaft 163, that is, move a certain distance along the axial direction.

[0218] Referring to Figure 40A, which is an overall schematic diagram of the transmission part in one embodiment of the present invention, as shown, the first transmission part 161 includes at least a first transmission part locking fastener 1610, which has a first transmission part fixing hole 16100. A screw passes through the first transmission part fixing hole 16100 to fix the first transmission part 161 to the side wall 90 of the connecting part 9. The second transmission part 162 includes at least a second transmission part locking fastener 1620, which has a second transmission part fixing hole 16200. A screw passes through the second transmission part fixing hole 16200 to fix the second transmission part 162 to the backlight surface of the mounting part 1. An angle indicator may be provided on the first transmission part 161 or the second transmission part 162. The relative angle between the first transmission part 161 and the second transmission part 162 can be accurately adjusted according to the angle indicator, that is, the angle between the mounting part 1 and the connecting part 9 can be adjusted to achieve the adjustment of the light emission angle of the lighting fixture. A toothed structure is provided at the position where the first transmission part 161 and the second transmission part 162 fit together. That is, a ring of teeth is provided on one end of the first transmission part 161 relative to the second transmission part 162, and a ring of teeth is also provided on one end of the second transmission part 162 relative to the first transmission part 161. The first transmission part 161 and the second transmission part 162 are engaged by the toothed structure, and the first transmission part 161 and the second transmission part 162 can maintain a fixed relative angle without the action of other external forces.

[0219] Referring to Figure 40B, which is an exploded view of the transmission part in an embodiment of the present invention, as shown, toothed structures are provided on the ends of the first transmission part 161 and the second transmission part 162 that are in contact with each other. The toothed structure on the first transmission part 161 is a first meshing tooth 1611, and the toothed structure on the second transmission part 162 is a second meshing tooth 1621. When no external force is applied, the first meshing tooth 1611 and the second meshing tooth 1621 mesh with each other, thereby maintaining a fixed relative angle between the first transmission part 161 and the second transmission part 162. Under the action of external force, the first meshing tooth 1611 and the second meshing tooth 1621 are forced to move. The second meshing tooth 1621 moves a certain distance along the transmission shaft 163 in a direction away from the first transmission part 161, so that the first transmission part 161 and the second transmission part 162 can rotate relative to each other. The transmission shaft spring 164 is set inside the second transmission shaft 162. During the rotation, the transmission spring 164 is compressed and has a tendency to return to the first transmission part 161, so that the first meshing tooth 1611 and the second meshing tooth 1621 re-engage. See Figure 40C below for details. 40C is a cross-sectional view of the transmission part 16 along the length of the transmission shaft 164. As shown in Figure 40C, a second transmission part limiting chamber 1622 is provided at the end of the second transmission part 162 away from the first transmission part 161. A second transmission part through hole 1623 is provided at the end of the second transmission part limiting chamber 1622 near the first transmission part 161. The transmission shaft 163 passes through the second transmission part through hole 1623 and extends to the first transmission part 161 and is fixed thereto. The transmission shaft spring 164 is sleeved on the transmission shaft 163 and is at least partially located in the second transmission part limiting chamber 1622. A transmission shaft limiting part 1630 with a radius larger than the main body of the transmission part 163 is provided at the end of the transmission shaft 163 away from the first transmission part 161. The second transmission part through hole 162... The radius of the second transmission part 162 is smaller than the radius of the transmission shaft spring 164. Therefore, the second transmission part through hole 1623 and the transmission shaft limiting part 1630 restrict the transmission shaft spring 164 between the two, or in other words, within the second transmission part limiting chamber 1622. When subjected to external force, when the second transmission part 162 moves toward the transmission shaft limiting part 1630, the transmission shaft 163 remains stationary. The transmission shaft spring 164 is compressed by the end face where the second transmission part through hole 1623 is located and the transmission shaft limiting part 1630, resulting in a tendency to return to its original state. After the external force disappears, the transmission shaft spring 164 relaxes toward the first transmission part 161, causing the second transmission part 162 and the first transmission part 161 to re-engage (meet).

[0220] Referring to Figure 40D, which is an exploded view of the transmission part in one embodiment of the present invention, as shown, the first transmission part 161 and the second transmission part 162 are provided with multiple cavities, which are used to reduce weight and to accommodate parts. In the cavity of the first transmission part 161, a rotating bearing 1612 is fixed, and one end of the transmission shaft 163 is fixed in the rotating bearing 1612, so that the transmission shaft 163 can rotate and remain fixed along its length.

[0221] Referring to Figure 41, which is a schematic diagram of the light-emitting surface of a lighting fixture according to an embodiment of the present invention, the lighting fixture includes a lampshade 5 disposed in the light-emitting direction. The lampshade 5 includes a first optical component 52 and a second optical component 53. The first optical component 52 is fixed to the mounting portion 1, and the second optical component 53 is fixed to the connecting portion 9. The angle between the first optical component 52 and the second optical component 53 can be adjusted by a transmission mechanism 16. The first optical component 52 may be made of a light-transmitting material, and the second optical component 53 may be made of a reflective material. The second optical component 53 can reflect at least a portion of the light emitted from the first optical component 52. A light-emitting element is disposed in the mounting portion 1, and the structure of the light-emitting element can be referred to the description of the previous embodiment.

[0222] Referring to Figure 42, which is a schematic diagram of the backlight surface of a lighting fixture according to another embodiment of the present invention. In this embodiment, at least one of the multiple transmission mechanisms 16 of the lighting fixture is an electric pivoting mechanism, which includes a first transmission part 161 and a second transmission part 162, and a transmission motor 165. The transmission motor 165 is disposed in the cavity of the first transmission part 161 and is connected to the second connecting part 162 through a motor transmission shaft 166, so that the second transmission part 162 can rotate relative to the first connecting part 161 under the control of the transmission motor 166. The first connecting part 161 is fixed to the connecting part 9, and the second connecting part 162 is fixed to the mounting part 1, that is, the mounting part 1 can rotate relative to the connecting part 9 under the control of the transmission motor 166. The positional relationship between the first transmission part 161 and the second transmission part 162 is basically the same as that described in the previous embodiment and Figures 38 and 39. The transmission motor 165 is electrically connected to the connecting part 9 to achieve conduction, and more specifically, the transmission motor 165 (or transmission mechanism 16) is electrically connected to the power supply component disposed in the connecting part 9 to achieve power supply. The multiple transmission mechanisms 16 of the lighting fixture may also include a purely mechanical transmission mechanism 16.

[0223] Referring to Figure 43A, which is an overall schematic diagram of the purely mechanical transmission mechanism 16 in Figure 42, and referring to Figure 43B, which is an exploded schematic diagram of the purely mechanical transmission mechanism 16 in Figure 42, as shown in Figures 43A and 43B, the purely mechanical transmission mechanism 16 includes a first transmission part 161 and a second transmission part 162. The first transmission part 161 includes at least one first transmission part locking fastener 1610, which is provided with a first transmission part fixing hole 16100. The first transmission part fixing hole 16100 is fixed to the side wall 90 of the connecting part 9 by a screw structure. The second transmission part 162 includes at least one second transmission part locking fastener 1620, which is provided with a second transmission part fixing hole 16200. The second transmission part fixing hole 16200 is fixed to the backlight surface of the mounting part 1 (or the backlight surface of the light source mounting part 10) by a screw structure. The first transmission part 161 is provided with a first transmission part shaft hole 1613, and the second transmission part 162 extends a transmission shaft 163 toward the first transmission part 161. The transmission shaft 163 is inserted into the first transmission part shaft hole 1613, so that the second transmission part 162 can rotate relative to the first transmission part 161 with the transmission shaft 163 as the rotation axis.

[0224] Referring to Figures 44A and 44B, which are overall schematic diagrams from different perspectives of the electrically driven transmission mechanism 16 in Figure 42, i.e., the transmission mechanism is an electric pivoting mechanism.

[0225] As shown in Figures 44A and 44B, the transmission mechanism 16 also includes a first transmission part 161 and a second transmission part 162. The first transmission part 161 is provided with at least one first transmission part locking fastener 1610 and a first transmission part fixing hole 16100 provided on the first transmission part locking fastener 1610. The second transmission part 162 includes at least one second transmission part locking fastener 1620, a second transmission part fixing hole 16200 provided on the second transmission part locking fastener 1620, and a second transmission part shaft hole 1623 provided on the second transmission part 162. The first transmission part 161 is a hollow structure (see Figure 44B) and includes a first transmission part cavity 167. A transmission motor 165 is provided in the first transmission part cavity 167. The transmission motor 165 also includes a motor fixing plate 1650, which is fixed to the side wall 90 of the connecting part 9, thereby fixing the transmission motor 165. Multiple motor mounting holes 16500 are provided on the motor mounting plate 1650. The motor mounting plate 1650 is tightly fixed to the connecting part 9 by screws passing through the motor mounting holes.

[0226] Referring to Figures 45A, 45B, and 45C, Figure 45A is a schematic diagram showing the separation of the first transmission part and the second transmission part, while Figures 45B and 45C are exploded schematic diagrams of the transmission structure from different perspectives. As shown in Figure 45A and in conjunction with Figures 45B and 45C, the transmission motor 165 is disposed within the first transmission part 161, and the transmission motor 165 includes a motor transmission shaft 166, which extends from the transmission motor 165 and passes through the first transmission part 161. The end of the motor transmission shaft 166 away from the first transmission part 161 has a flat structure, while the end closer to the first transmission part 161 is cylindrical. The second transmission part 162 includes a second transmission part shaft hole 1623, which has a flat slotted structure that matches the motor transmission shaft 166. The motor transmission shaft 166 is inserted into the second transmission part shaft hole 1623, so that when the transmission motor 165 drives the motor transmission shaft 166, the second transmission part 162 rotates with the motor transmission shaft 166. That is, the transmission motor 165 controls the relative positional relationship (such as the relative angle, which is 0° to 270°) between the first transmission part 161 and the second transmission part 162. In this embodiment, the number of electrically driven transmission mechanisms 16 can be one or more, and they can be arranged symmetrically or asymmetrically.

[0227] Referring to Figure 46, which is a schematic diagram of the light-emitting surface of the lighting fixture in Figure 42 of the present invention, its structure is basically the same as that described in Figure 41. Similarly, the mounting part 1 and the connecting part 9 are spaced apart by a certain distance, and the distance between them is greater than or equal to the maximum height of the mounting part 1 (or the heat dissipation part 3) near the connecting part 9, to prevent interference between the two when the mounting part 1 rotates relative to the connecting part 9. As can be seen from the figure, the motor fixing plate 1650 on the drive motor 165 is provided on the side of the drive motor 165 facing the connecting part 9, and it is connected and fixed to the side wall 90 of the connecting part 9, thereby fixing the drive motor 165. Referring to Figure 45C, it can be seen that the first transmission part locking fastener 1610 is fixed by a screw passing through the first transmission part fixing hole 16100 and screwing into the connecting part 9.

[0228] Referring to Figure 47, which is a schematic diagram of the rear of the lighting device according to another embodiment of the present invention. The lighting fixture in this embodiment has an integrated structure, mainly composed of a housing 100. The housing 100 includes a connecting part 9, a mounting part 1, a heat dissipation part 3, and end caps 54. The mounting part 1 is disposed on both sides of the connecting part. The heat dissipation part 3 is disposed on the back surface of the mounting part 1. End caps 54 are respectively disposed at both ends of the mounting part 1 along its length. The connecting part 9, the mounting part 1, the heat dissipation part 3, and the end caps 54 are integrally formed. The connecting part 9 and the mounting part 1 are spaced apart, i.e., there is a gap between the connecting part 9 and the mounting part 1 to form a heat dissipation channel 2 along the length direction of the connecting part 9. Heat dissipation channels 2 are disposed on both sides of the connecting part 9 along its length direction. The heat dissipation part 3 includes multiple heat dissipation fins 31 disposed along the width direction of the connecting part 9. The heat dissipation fins 31 are parallel to each other and perpendicular to the mounting part 1, avoiding a stacked structure that would affect heat dissipation. The end cap 54 is provided with multiple adjustment knobs 542. The adjustment knobs 542 can be moved back and forth along the height direction. A scale mark is also provided on one side of the adjustment knob 542. According to the scale mark, the beam angle of the lighting fixture can be accurately adjusted (the beam angle refers to the angle range between 1 / 10 of the maximum light intensity of the lamp), thereby changing the overall light output effect and light output range of the lighting fixture.

[0229] Referring to Figure 48 (analyzed in conjunction with Figures 50 and 51), which is an exploded view of the adjustment knob 542 in one embodiment of the present invention, the adjustment knob 542 includes an adjustment knob body 5420, a knob rod 54201 disposed on the adjustment knob body and extending outward, and a knob limiting member 5421, which is sleeved on the knob rod 54201. The end cap 54 is provided with multiple knob connecting holes 543. The knob limiting member 5421 and the knob rod 54201 are accommodated in the knob connecting holes 543. The knob limiting member 5421 clamps the knob rod 54201, and the knob limiting member 5421 can move to different positions in the knob connecting holes 543 under external force. That is, moving the adjustment knob body 5420 can cause the knob rod 54201 to be in different positions, i.e., at different heights in the knob connecting holes 543. The angle can be varied between 30° and 160°, such as achieving a beam angle of 30°, 60°, 90°, 120°, 160°, etc., which means that the refraction angle between the light source 42 and the strip lens 431 is changed, thereby changing the size of the beam angle of the light emitted from the strip lens 431, that is, changing the overall beam angle of the lighting fixture, and thus changing the overall light output effect of the lighting fixture.

[0230] Referring to Figure 49, which is a front view of the lighting fixture in one embodiment of the application, the lighting fixture also includes a lampshade 5. The lampshade 5 includes a first optical component 52 and a second optical component 53. A plurality of ventilation holes 51 are provided on the second optical component 53, and the ventilation holes 51 are connected to the heat dissipation channel 2.

[0231] Figure 50 is a partially exploded view of the lighting fixture along the length of the end cap in one embodiment of the present invention; Figure 51 is an overall schematic diagram of the adjustment knob in one embodiment of the present invention.

[0232] Referring to Figures 52 and 53, which are the rear and front views of the lighting fixture with the housing removed, respectively, the lighting fixture also includes a light-emitting element 4 at the mounting part 1. The light-emitting element 4 includes a lamp plate 41, a plurality of light-emitting bodies 42 disposed on the lamp plate 41, and a light processing unit 43 disposed in the light emission direction of the light-emitting bodies. The light processing unit 43 is provided with a plurality of strip-shaped lenses extending along its length, such as at least one first strip-shaped lens and at least one second strip-shaped lens, and the thickness of the first strip-shaped lens is different from the thickness of the second strip-shaped lens, and the light emission angle of the first strip-shaped lens is different from the light emission angle of the second strip-shaped lens. The light processing unit 43 has a toggle switch connecting part 430 at both ends. The toggle switch connecting part 430 has a lever connecting hole 4301. The lever 54201 is inserted into the lever connecting hole 4301. When the toggle switch is turned, the toggle switch 54201 can drive the light processing unit 43 to move relative to the lamp board 41, such as moving up and down, that is, moving relative to the light emitting body 42. This changes the distance (vertical distance) between the light emitting body 42 and the light processing unit 43, that is, the distance between the light emitting body 42 and the strip lens, thereby realizing the adjustment of the light emission angle, such as the light emission angle changing from 0° to 270°.

[0233] Referring to Figure 54, which is a schematic diagram of a lighting fixture in another embodiment of the present invention, as shown in the figure, in this embodiment, the adjustment knob 542 is arranged along the length direction of the end cover 54 and can reciprocate along the length direction of the end cover 54. Other structures are basically the same as those described in 47, and will not be repeated here.

[0234] Figure 55 is a front view of the end cap and an exploded view of part of the adjustment knob 542 in another embodiment of the present invention. The difference between Figure 50 and Figure 55 is the setting direction of the knob connecting hole 543 and the knob limiting member 5421. When the knob body 5420 is turned, the elastic part 542010 of the knob rod changes position along the length direction of the end cap (also known as the lateral direction or along the width direction of the lighting fixture) among the multiple knob connecting hole limiting grooves 5431 in the knob connecting hole 543, thereby changing the light output of the lighting fixture.

[0235] Figures 56, 57, and 58 are schematic diagrams of the lighting fixture structure in another embodiment of the present invention. As shown, the adjustment knob 542 is connected to the knob connection portion 430 at both ends of the light processing unit 43. When the adjustment knob 542 is moved back and forth along the length of the end cover 54, it is suitable for controlling the relative displacement of the light processing unit 43 with respect to the lamp plate 42 or the light source 42, such as left and right translation. That is, the strip lens on the light processing unit 43 translates left and right relative to the light source 42 (also referred to as lateral or along the width direction of the lighting fixture), thereby changing the beam angle range of the lighting fixture. That is, the component descriptions in Figures 47 to 53 can be used in Figures 54 to 58. The only difference is the orientation of the knob connection hole 543, the knob connection hole limiting groove 5431, and the knob limiting member 5421, as well as the movement trajectory of the light processing unit 43. Other features are basically the same and will not be described again here.

[0236] Figure 59 is a schematic diagram of a lighting fixture according to another embodiment of the present invention. As shown in the figure, a transmission mechanism receiving part 95 is provided on the connecting part 9, so that the transmission mechanism 16 is located inside the lighting fixture.

[0237] Referring to Figure 60, which is an exploded view of a lighting fixture according to an embodiment of the present invention, as shown, a power supply component 8 is provided in the connecting part 9, and a transmission mechanism 16 is provided in the transmission mechanism receiving part 95. The transmission mechanism 16 is driven by a motor and its final output is linear reciprocating motion. One end of the transmission mechanism 16 is fixed to the connecting part 9, and the other end is fixed to the light processing unit 43. Under electric drive, the light processing unit 43 is controlled to move up and down relative to the lamp plate 41, thereby changing the distance between the two.

[0238] Referring to Figure 61, which is a partial enlarged view of the transmission mechanism 16 accessory in Figure 60 of the present invention, the transmission mechanism 16 includes a first transmission part 161 and a second transmission part 162. The first transmission part 161 outputs rotational motion, and the second transmission part outputs linear motion. The first transmission part is fixed to the transmission mechanism receiving part 95, that is, fixed to the connecting part 9; the second transmission part 162 is fixed to the light processing unit 43.

[0239] Referring to Figures 62A and 62B, which are exploded schematic diagrams of the transmission mechanism 16 in Figure 60 from different perspectives, the first transmission part 161 includes a main structure with a transmission motor 165. The main structure also includes a first transmission part locking fastener 1610 and a first transmission part fixing hole 16100. The first transmission part 161 is fixed to the connecting part 9 by screws. The first transmission part 161 also includes a first transmission part cover 168. A rotating gear 1614 is provided at one end of the transmission motor 165. The first transmission part cover 168 covers the rotating gear 1614, placing it in a sealed space for protection. The second transmission part 162 includes a second transmission part locking fastener 1620 and a second transmission part fixing hole 16200 provided on the second transmission part locking fastener 1620. The second transmission part 162 is connected and fixed to the light processing unit 43 through the second transmission part fixing hole 16200. The second transmission unit locking fastener 1620 also has a rack structure 1624 fixed in place. The rack structure 1624 meshes with the rotating gear 1614 to convert the rotational motion of the transmission motor 165 into linear reciprocating motion. The distance between the first transmission part 161 and the second transmission part 162 is variable, ranging from zero to the length of the rack structure 1624. When the transmission motor 165 drives the rotating gear 1614, the first transmission part 161, which is fixed to the connecting part 9, cannot move. Therefore, the rack structure 1624 is driven to move up and down relative to the first transmission part 161. The rack structure 1624 is fixed to the second transmission part locking fastener 1620 of the second transmission part 162, which drives the second transmission part 162 to move up and down relative to the first transmission part 161. The second transmission part 162 is fixed to the light processing unit 43, which is movable. This allows the light processing unit 43 to move inside the lighting fixture, that is, to move relative to the lamp panel 41 (or the light source 42). The distance between the two changes, and the size of the refraction angle also changes, thereby changing the beam angle range of the light emitted from the light processing unit 43, that is, the beam angle range of the lighting fixture.

[0240] Referring to Figure 63, which is an exploded view of a lighting fixture in one embodiment of this application, as shown, the connecting part 9 is provided with two transmission mechanism receiving parts 95, and a motor fixing bracket 950 is provided in the transmission mechanism receiving part 95. As shown in Figures 62A and 62B, the first transmission part 161 is locked to the motor fixing bracket 950 by the first transmission part locking fastener 1610.

[0241] See Figures 64 and 65, which are exploded views of a lighting fixture according to an embodiment of this application. As shown in the figure, the lampshade 5 is provided with strip lenses arranged along its length (as mentioned above, first strip lenses, second strip lenses, third strip lenses... Nth strip lenses, etc., with different thicknesses or surface shapes). Below each strip lens (i.e., first strip lens, second strip lens, third strip lens... Nth strip lens) is at least one set of corresponding LED beads (i.e., light emitters) array. In one embodiment, the 60°, 90°, and 120° LED bead arrays shown in the figure (arranged in a cyclical manner, corresponding to the first strip lens, second strip lens, and third strip lens, respectively), and the strip lens 431 representing the LED bead array in the 60° region, make the beam angle of the light emitted by the light emitter 42 after passing through the strip lens 431 at this position 60°, so that the final beam angle of the light emitted by the light emitter 42 is 60°. The same applies to other angles. By controlling the on / off state of the light emitter 42 under the strip lens 431, the light emission angle of the lighting fixture can be changed. This control can be achieved through a mobile APP or manual adjustment.

[0242] Referring to Figure 66, which is a cross-sectional view of the light processing unit and the light emitter along the width direction of the lighting fixture, the distance between them has been appropriately enlarged for ease of understanding. In some embodiments, the light emitter can be housed within the light processing unit. As shown in Figure 66, the light processing unit 43 is provided with multiple adjustment lenses 431 extending along the length direction of the lighting fixture. These strip lenses 431 are hollow convex lenses with accommodating space. The strip lenses 431 have various thicknesses, meaning they have at least two thicknesses. In this embodiment, the strip lenses 431 have three thicknesses (i.e., including a first strip lens, a second strip lens, and a third strip lens with different thicknesses or surface shapes), with radii of d1, d2, and d3 respectively. Strip lenses 431 of different thicknesses are cyclically arranged along the width direction of the lighting fixture. Each thickness of strip lens... Each of 432 corresponds to a row of light-emitting elements 42. Among them, the strip lens 431 with a thickness of d1 causes the light emitted from the light-emitting element 42 to have a beam angle of 60° after passing through the strip lens 431 and exiting; the strip lens 431 with a thickness of d2 causes the light emitted from the light-emitting element 42 to have a beam angle of 90° after passing through the strip lens 431 and exiting; the strip lens 431 with a thickness of d3 causes the light emitted from the light-emitting element 42 to have a beam angle of 120° after passing through the strip lens 431 and exiting. When it is necessary to control the light emission angle of the lighting fixture, it is only necessary to light up the light-emitting element 42 of the corresponding thickness to achieve the required beam angle.

[0243] In one embodiment of the present invention, d1>d2>d3, that is, the greater the thickness of the strip lens, the stronger the light-gathering effect.

[0244] Referring to Figure 67A, which is a schematic diagram of the thickness setting of the strip lens 431 in another embodiment of the present invention, the strip lenses 431 have thicknesses of d1 and d3, and the two thicknesses of the strip lenses 431 are arranged alternately. The strip lens 431 with a thickness of d1 causes the light emitted from the light source 42 to have a beam angle of 60° after passing through the strip lens 431 and exiting. The strip lens 431 with a thickness of d3 causes the light emitted from the light source 42 to have a beam angle of 120° after passing through the strip lens 431 and exiting. When it is necessary to control the size of the light beam angle emitted by the lighting fixture, only the corresponding thickness needs to be lit. The lower light-emitting body 42 can control the required beam angle. For example, if a beam angle of 60° is required, only the light-emitting body 42 corresponding to the strip lens 431 with a thickness of d1 needs to be lit. If a beam angle of 120° is required, only the light-emitting body 42 corresponding to the strip lens 431 with a thickness of d3 needs to be lit. If a beam angle of 90° is required, the light-emitting bodies 42 corresponding to the strip lenses 431 with thicknesses of d1 and d3 are lit at the same time, so that the light emitted by the strip lenses 431 with thicknesses of d1 and d3 overlaps and forms a new beam angle of 90° in the overall range.

[0245] In one embodiment, d1:d3 = 2:1.

[0246] In the schemes shown in Figures 66 and 67A, the light emitters 42 with different thicknesses can be lit individually or in combination, and different light emission angles can be achieved by combining them.

[0247] Referring to Figure 67B (described in conjunction with Figure 68), which is a schematic diagram of the position of the strip lens and the light emitter in another embodiment of this application, the strip lens 431 includes two types of strip lenses with emission beam angles of 110 degrees and 40 degrees, that is, strip lenses with at least two emission beam angles, and at least one strip lens has a wide emission beam angle, and at least the other strip lens has a complementary narrow emission beam angle. For example, the 110-degree strip lens corresponds to one light-emitting element, and the 40-degree strip lens corresponds to two LED beads. When it is necessary to adjust the light emission angle of the LED lighting fixture, the light emission angle can be adjusted by the angle adjustment knob 96 provided on the connecting part 9; when it is necessary to adjust the light emission angle to 110 degrees, the angle adjustment knob 96 is adjusted so that the light-emitting element corresponding to the 110-degree strip lens is lit.

[0248] When the light output angle needs to be adjusted to 90 degrees, adjust the angle adjustment knob 96 to light up one light-emitting element corresponding to the 110-degree strip lens and one light-emitting element corresponding to the 40-degree strip lens.

[0249] When the light emission angle needs to be adjusted to 60 degrees, adjust the angle adjustment knob 96 so that one light-emitting element corresponding to the 110-degree strip lens and two light-emitting elements corresponding to the 40-degree strip lens are lit; the light emission angle referred to in these embodiments refers to the beam angle.

[0250] In one embodiment of this application, a built-in control box is connected to the control circuit, and the control box is remotely adjusted through an application to control the lighting of the light-emitting element, that is, to control the overall light output of the lighting fixture by lighting in the mode described above.

[0251] In one embodiment of this application, the strip lens 431 includes at least two sets of strip lenses with different thicknesses, or at least two sets of strip lenses with different light emission angles (the light emission angle refers to the beam angle after the corresponding light emitter passes through the adjustment lens with different thicknesses).

[0252] In one embodiment of this application, the strip lens 431 includes at least two sets of strip lenses with different thicknesses, or at least two sets of strip lenses with different light emission angles (the light emission angle refers to the beam angle after the corresponding light emitter passes through the adjustment lens with different thicknesses), and each set of strip lenses corresponds to at least one set of light emitters.

[0253] All of the above angle controls are equipped with an angle display mechanism.

[0254] Referring to Figure 68, which is a front view of an LED lighting fixture according to another embodiment of this application, adjustment knobs 542 are disposed on the side of the LED lighting fixture where the heat dissipation part 3 is arranged, that is, at both ends of the heat dissipation part 3 near the end cover 5. There are multiple adjustment knobs 542, and in one embodiment, there are four adjustment knobs 542. The two ends of the heat dissipation part 3 near the end cover 5 are provided with corresponding mounting grooves for accommodating the adjustment knobs 542, that is, at least a portion of the adjustment knobs 542 is accommodated in the mounting grooves of the heat dissipation part 3. A connecting part 9 is disposed on the housing 100 of the lighting fixture, and a dimming knob 93, a color adjustment knob 94, and an angle adjustment knob 96 are respectively disposed on the connecting part 9.

[0255] Referring to Figure 69, which is a partial exploded view of an LED lighting fixture according to an embodiment of this application, it includes a lighting fixture housing 100, a heat dissipation part 3 disposed on the lighting fixture housing 100, and a connecting part 9, wherein the connecting part 9 and the lighting fixture housing 100 are separately disposed. The light-emitting element 4 includes a lamp plate 41, a light-emitting body 42 (not shown) disposed on the lamp plate 41, and a light processing unit 43 disposed in the light emission direction. A toggle connecting part 430 is provided at both ends of the light processing unit 43 along the length direction, and a plurality of light processing unit fixing parts 432 are provided on both sides along the length direction of the light processing unit 43. The light processing unit 43 also includes a plurality of strip lenses 431 (other structures are similar to the embodiments shown in Figures 47 to 58).

[0256] Referring to Figure 70, which is a partial enlarged view of Figure 69, the adjustment knob 542 includes an adjustment knob body 5420 and a lever 54201 disposed on the adjustment knob body 5420. In this embodiment, at least two levers 54201 are provided on one adjustment knob 542, and the lever 54201 has an L-shaped hook structure. The knob connecting part on the light processing unit 43 is provided with two corresponding lever connecting holes 4301. The end of the lever 54201 is engaged with the lever connecting hole 4301, thereby achieving connection between the two. That is, when the adjustment knob 542 is turned, the light processing unit 43 can be moved to change the position between the strip lens 431 and the light emitter 42, thereby adjusting the overall light emission angle of the LED lighting fixture.

[0257] Referring to Figure 71, which is an exploded view of an LED lighting fixture from another perspective in one embodiment of this application, as shown, a plurality of light processing unit fixing slots 17 corresponding to light processing unit fixing members 432 are provided on the housing 100 of the lighting fixture. The light processing unit fixing members 432 are engaged with the light processing unit fixing slots 17 and can slide relative to the light processing unit fixing slots 17 along the width direction of the LED lighting fixture.

[0258] Referring to Figure 72, which is a schematic diagram of the splicing of LED lighting fixtures, in this embodiment of the application, the LED lighting fixture 1000 can be spliced ​​along its length by end cap to end cap. A first splicing fixing part 101 and a second splicing part 102 are provided on the end cap 5 near the end cap 5, wherein the second splicing part 102 is a through hole provided on the end cap 5. Referring to Figures 73 and 74, which are partial enlarged views of the first splicing part, as shown, the first splicing parts 101 of the two LED lighting fixtures are fitted together, and then the two are locked together by a splicing fixing member 1011 and a screw structure. That is, both the first splicing part 101 and the splicing fixing member 1011 are provided with screw holes so that screws can pass through and fix them.

[0259] The second splicing part 102 is a through hole provided on the end cover 5. The second splicing parts 102 on the two LED lighting fixtures are attached together and locked by screws and nuts.

[0260] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, variations and combinations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A lighting fixture, characterized in that, include: A housing, the housing including a connecting portion and at least two mounting portions, the two mounting portions being respectively disposed on both sides of the connecting portion, the mounting portions having a first accommodating space, and the connecting portion having a second accommodating space; at least one heat dissipation channel disposed on at least one side of the mounting portion; and at least one heat dissipation part, the mounting portion and the heat dissipation part being integrally formed. The mounting part is provided with end caps at both ends along its length, and the end caps are provided with adjustment knobs; The lighting fixture further includes a light-emitting element, which is housed in the first accommodating space of the mounting portion, and the light-emitting element and the heat dissipation portion are respectively disposed on both sides of the mounting portion; A power supply assembly, the power supply assembly being housed within a second accommodating space of the connection portion; and A lampshade, wherein the lampshade covers the light-emitting element and is connected to the mounting part; The light-emitting element includes a lamp board and a plurality of light-emitting bodies disposed on the lamp board, as well as a light processing unit disposed in the light-emitting direction of the light-emitting bodies; The adjustment knob is adapted to cause the light processing unit to move relative to the lamp panel; The heat dissipation channel at least partially penetrates the housing; the heat dissipation part is disposed on the side of the mounting part away from the light-emitting element, and the heat dissipation part includes a plurality of heat dissipation fins integrally formed with the mounting part.

2. The luminaire of claim 1, wherein: The light processing unit is provided with a plurality of strip lenses arranged along its length; the relative displacement between the light processing unit and the lamp panel includes vertical movement and horizontal translation.

3. The luminaire of claim 2, wherein: The adjustment knob includes an adjustment knob body, a knob rod disposed on the adjustment knob body and extending outward, and a knob limiting member, which is sleeved on the knob rod; the end cover is provided with a plurality of knob connecting holes, and the knob limiting member and the knob rod are accommodated in the knob connecting holes; both ends of the light processing unit are provided with knob connecting parts, and the knob connecting parts are provided with lever connecting holes, into which the knob rod is inserted.

4. The lighting fixture according to claim 3, characterized in that: The light-emitting element includes a lamp board and a plurality of light-emitting bodies distributed at equal intervals on the lamp board; the lamp board has a conductive circuit, and the light-emitting bodies are electrically connected to the conductive circuit.

5. The luminaire of claim 4, wherein: The mounting portion includes a long side and a short side. The heat dissipation channel is disposed on one side of the long side of the mounting portion and is disposed on at least one side of the mounting portion, and is disposed along the long side of the mounting portion.

6. The lighting fixture according to claim 5, characterized in that: The heat dissipation channel is disposed on at least one side of the mounting portion and is disposed along the long side of the mounting portion.

7. The luminaire of claim 6, wherein: The heat dissipation channel is disposed between the connecting part and the mounting part; the heat dissipation fins are arranged at equal intervals along the direction of the mounting part, and the thickness of the heat dissipation fins is parallel to the length direction of the mounting part in the opposite direction.

8. The luminaire of claim 7, wherein: It also includes a junction box, which is connected to the connection part via a connecting lug; the power supply assembly is installed in the connection part and supplies power to the light-emitting element.

9. The lighting fixture according to claim 8, characterized in that: The lampshade includes a light processing unit, which includes a first optical component and a second optical component. The surfaces of the first optical component and the second optical component are provided with the same or different microstructure arrays, and the microstructure arrays are micro protrusions or depressions.

10. The lighting fixture according to claim 9, characterized in that: The connecting part is provided with a dimming and color adjustment knob, which has multiple adjustment levels.

11. A lighting fixture, characterized in that, include: A housing, the housing including a connecting portion and at least two mounting portions, the two mounting portions being respectively disposed on both sides of the connecting portion, the mounting portions having a first accommodating space, and the connecting portion having a second accommodating space; at least one heat dissipation channel disposed on at least one side of the mounting portion; and at least one heat dissipation part, the mounting portion and the heat dissipation part being integrally formed. The lighting fixture further includes a light-emitting element, which is housed in a first receiving cavity of the mounting portion, and the light-emitting element and the heat dissipation portion are respectively disposed on both sides of the mounting portion; A power supply assembly, the power supply assembly being housed within a second accommodating space of the connection portion; and A lampshade, wherein the lampshade covers the light-emitting element and is connected to the mounting part; The light-emitting element includes a lamp board and a plurality of light-emitting bodies disposed on the lamp board, as well as a light processing unit disposed in the light-emitting direction of the light-emitting bodies; The heat dissipation channel at least partially penetrates the housing; the heat dissipation part is disposed on the side of the mounting part away from the light-emitting element, and the heat dissipation part includes a plurality of heat dissipation fins integrally formed with the mounting part; The light processing unit is provided with a first strip lens and a second strip lens. The thickness of the first strip lens is different from the thickness of the second strip lens, and the light emission angle of the first strip lens is different from the light emission angle of the second strip lens.

12. The lighting fixture according to claim 11, characterized in that: Both the first strip lens and the second strip lens are provided with at least one set of light-emitting element arrays, and the light-emitting element arrays can be lit individually or in combination.

13. The lighting fixture according to claim 12, characterized in that: The lamp panel has a conductive circuit, and the light-emitting element is electrically connected to the conductive circuit.

14. The lighting fixture according to claim 13, characterized in that: The mounting portion includes a long side and a short side. The heat dissipation channel is disposed on one side of the long side of the mounting portion. The heat dissipation channel is disposed on at least one side of the mounting portion and along the long side of the mounting portion, and is disposed between the connecting portion and the mounting portion.

15. The lighting fixture according to claim 14, characterized in that: The heat dissipation channel is located between the connecting part and the mounting part.

16. The lighting fixture according to claim 15, characterized in that: The heat dissipation fins are arranged at equal intervals along the direction of the mounting portion, and the thickness of the heat dissipation fins is parallel to the length direction of the mounting portion in the opposite direction.

17. The lighting fixture according to claim 16, characterized in that: The power supply assembly is installed on the connection part, and the power supply assembly supplies power to the light-emitting element.

18. The lighting fixture according to claim 17, characterized in that: It also includes a junction box, which is connected to the connection part via a connecting lug.

19. The lighting fixture according to claim 18, characterized in that: The lampshade includes a light processing unit, which includes a first optical component and a second optical component. The surfaces of the first optical component and the second optical component are provided with the same or different microstructure arrays, and the microstructure arrays are micro protrusions or depressions.

20. The lighting fixture according to claim 19, characterized in that: The connecting part is provided with a dimming and color adjustment knob, which has multiple adjustment levels.

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