lighting fixtures

Abstract

To provide a lighting device etc. which can be easily assembled.SOLUTION: A lighting device includes a radiator and a light source plate. The radiator includes a body and one or multiple connection members. Each connection member includes a claw part and an arm part. The arm part connects the claw part with the body. The claw part protrudes from an upper panel of the body to form a housing part between the upper panel of the body and the claw part. The claw part extends along a first direction. The light source plate and the radiator move close to each other along the first direction. The light source plate is partially housed in the housing part and its position is restricted relative to the radiator in an axial direction of the lighting device. One side of the light source plate is mated with the upper panel of the radiator, and the other of the light source plate is mated with the claw part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture, and more particularly to a lighting fixture that is easy to assemble. [Background technology]

[0002] A lighting fixture generally includes components such as a light source plate, a driving circuit, and a heat sink. The components of a conventional lighting fixture are generally connected using screws during assembly. The screw connection method increases the number of components in the lighting fixture and complicates the assembly process. Furthermore, the screw connection method requires connecting components such as screws to occupy a certain amount of space inside the lighting fixture. Furthermore, due to insulation considerations, space must be left around the screw holes, making it difficult to place circuits.

[0003] Another method for connecting the light source plate and the heat sink is to use a rivet fastening structure. During assembly, the light source plate is fixed by bending a metal piece located on the periphery of the light source plate and then fastening it with a rivet. This type of connection method requires a complicated process, and the heat sink is prone to deformation during the rivet fastening process. Furthermore, after fastening the metal piece with a rivet, a repulsion occurs, creating a gap between the light source plate and the heat sink, resulting in poor heat dissipation. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In order to overcome or at least mitigate the drawbacks of the prior art described above, it is an object of the present invention to provide a lighting fixture that is easy to assemble and a method for assembling the same. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided a lighting fixture comprising a heat sink and a light source plate, the heat sink comprising a main body and one or more connecting members, the connecting members comprising a claw portion and an arm portion, the arm portion connecting the claw portion and the main body, the claw portion protruding from an upper panel of the main body to form a receiving portion between the upper panel of the main body and the claw portion, the claw portion extending along a first direction to allow the light source plate and the heat sink to approach each other, the light source plate being partially received in the receiving portion to restrict its position relative to the heat sink in the axial direction of the lighting fixture, one side of the light source plate mating with the upper panel of the heat sink and the other side of the light source plate mating with the claw portion.

[0006] It is preferable that the arm portion includes a base portion connected to the main body, the base portion extends along the first direction, the base portion does not protrude from the upper panel, and the base portion is spaced apart from the upper panel on both sides of the first direction.

[0007] It is preferable that the base portion is not covered by the light source plate.

[0008] It is preferable that the distance between the claw portion and the upper panel at the entrance of the storage portion is greater than the minimum distance between the claw portion and the upper panel.

[0009] The connecting member is preferably formed by cutting and bending a partial area of ​​the heat sink.

[0010] It is preferable that there are multiple connecting members, and the extension directions of the claw portions of the multiple connecting members are all parallel, or that the multiple connecting members are arranged along an arc, and the extension direction of the claw portion of each connecting member is the tangent direction of the arc.

[0011] Preferably, one or more grooves are formed in the light source plate, and the connecting member partially passes through the grooves.

[0012] It is preferable that at least one of the grooves is located inside the light source plate to form a hole, and / or at least one of the grooves is located on the periphery of the light source plate to form an open groove that opens toward the outer periphery.

[0013] With respect to the hole formed inside the light source plate, it is preferable that the size of the hole is larger than the size of the base portion of the connecting member in the first direction.

[0014] It is preferable that the outer periphery of the light source plate partially protrudes outward to form at least one flange, and that at least a portion of the flange is housed in the housing portion.

[0015] Preferably, the lighting fixture further includes a housing that accommodates the heat sink and the light source plate, the housing including a connecting post connected to the heat sink, the heat sink having a connecting hole corresponding to the connecting post, the connecting post including a protrusion partially passing through the connecting hole and exposed from the upper panel of the heat sink, the light source plate having an accommodating groove corresponding to the connecting post, the connecting post being at least partially accommodated in the accommodating groove after passing through the connecting hole, the protrusion being pressed against the upper panel of the heat sink, or the protrusion being pressed against the side of the light source plate opposite the upper panel.

[0016] The lighting fixture of the present invention has a simple structure and is easy to assemble. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic diagram of a light source plate of a lighting fixture according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram of a heat sink of the lighting fixture according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a partially enlarged schematic view of a connecting member on a heat sink of the lighting fixture according to the first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of a unit formed by assembling the light source plate and the heat sink of the lighting fixture according to the first embodiment of the present invention. [Figure 5] FIG. 5 is a cross-sectional view of FIG. [Figure 6] FIG. 6 is a schematic diagram of a housing of the lighting fixture according to the first embodiment of the present invention. [Figure 7] FIG. 7 is a schematic diagram showing how the housing, the heat sink, and the light source plate of the lighting fixture according to the first embodiment of the present invention are assembled together. [Figure 8] FIG. 8 is a schematic diagram of a light source plate of a lighting fixture according to a second embodiment of the present invention. [Figure 9] FIG. 9 is a schematic diagram of a light source plate of a lighting fixture according to the second embodiment of the present invention. [Figure 10] FIG. 10 is a schematic diagram of a light source plate of a lighting fixture according to a third embodiment of the present invention. [Figure 11] FIG. 11 is a schematic diagram of a light source plate of a lighting fixture according to a third embodiment of the present invention. [Figure 12] FIG. 12 is a schematic diagram of a light source plate of a lighting fixture according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. It should be understood that these specific descriptions are merely intended to show those skilled in the art how to implement the present invention, but do not represent all possible implementations of the present invention, and are not intended to limit the scope of the present invention.

[0019] (Embodiment 1) First, an easy-to-assemble lighting fixture according to a first embodiment of the present invention will be described with reference to FIGS.

[0020] The lighting fixture of this embodiment includes a housing 1, a heat sink 2, and a light source plate 3. The light source plate 3 is attached to the heat sink 2. The unit formed by the heat sink 2 and the light source plate is attached to the housing 1.

[0021] The assembly structure of heat sink 2 and light source plate 3 of the lighting fixture of this embodiment will be described with reference to FIGS.

[0022] As shown in Fig. 1, the light source plate 3 of the lighting fixture is plate-shaped and includes one or more light-emitting elements. The light-emitting elements are, for example, light-emitting diodes (LEDs). By connecting the light source plate 3 and the heat sink 2, heat generated during light emission is conducted to the heat sink 2.

[0023] In this embodiment, two grooves 31 are formed in the light source plate 3 for connection to the connecting member 22 described below. The two grooves 31 are a hole 311 located inside the light source plate 3 and an open groove 312 located on the periphery of the light source plate 3. When assembling the open groove 312 and the connecting member 22, alignment is easy, facilitating installation.

[0024] It should be understood that the present invention does not limit the shape of the groove 31 located on the light source plate 3, as long as the connecting member 22 located on the heat sink 2 can pass through it.

[0025] As shown in FIG. 2, the heat sink 2 of the lighting fixture is in the form of a cover and is made of a material with high thermal conductivity, such as metal.

[0026] The heat sink 2 includes a main body 21 and a connecting member 22. Corresponding to the holes 311 and the opening grooves 312 of the light source plate 3, there are two connecting members 22 in this embodiment.

[0027] The main body 21 includes an upper panel 211 and a lower peripheral wall that surrounds the upper panel 211. The connecting member 22 is formed on the upper panel 211.

[0028] 3 shows a partial enlarged view of the connecting member 22 on the heat sink 2. The connecting member 22 includes a claw portion 221 and an arm portion 222. The claw portion 221 is connected to the main body 21 via the arm portion 222. The claw portion 221 is higher than the upper panel 211 and extends along the first direction X. A storage space capable of partially storing the light source plate 3 is formed between the claw portion 221 and the upper panel 211. After the claw portion 221 passes through the hole 311 and the opening groove 312 of the light source plate 3, the light source plate 3 and the heat sink 2 are moved toward each other along the first direction X, the light source plate 3 partially enters the storage space, and the claw portion 221 is pressed against the light source plate 3, fixing the light source plate 3 to the upper panel 211 of the heat sink 2. As a result, the claw portion 221 and the upper panel 211 restrict the position of the light source plate 3 in the axial direction of the housing 1.

[0029] In the first direction X, the hole 311 preferably has a large end and a small end. In the second direction Y, the size of the large end is larger than the size of the small end, and the size of the small end is equal to the size of the connecting member 22. In the process of attaching the heat sink 2 and the light source plate 3, the connecting member 22 enters the hole 311 from the large end, and then the heat sink 2 and the light source plate 3 are moved toward each other in the first direction X, and the connecting member 22 enters the small end. In this way, the large end facilitates the mutual assembly of the heat sink 2 and the light source plate 3, and the small end limits the relative movement of the heat sink 2 and the light source plate 3 in the second direction Y, thereby fixing them together.

[0030] With respect to the open groove 312 , the large end is the open end located on the periphery of the light source plate 3 .

[0031] In order to have a relatively large opening at the entrance of the storage section, the distance between the claw portion 221 and the upper panel 211 at the entrance of the storage section is preferably greater than the minimum distance between the claw portion 221 and the upper panel 211. Specifically, the surface of the claw portion 221 facing the storage section may be a surface that is relatively far from the upper panel 211 at the entrance of the storage section, such as a curved surface, a single plane that is inclined with respect to the upper panel 211, or multiple planes that form a certain angle with each other. A relatively large entrance to the storage section is preferably formed by slightly bending the claw portion 221 in a direction away from the upper panel 211.

[0032] It is more preferable that the minimum distance between the claw portion 221 and the upper panel 211 is smaller than the thickness of the light source plate 3 in the housing portion so that the claw portion 221 can be slightly deformed and pressed firmly by the light source plate 3.

[0033] Preferably, the arm portion 222 of the connecting member 22 further includes a base portion 223 that connects to the main body. The base portion 223 is located on the side opposite the claw portion 221 and extends in the first direction X. The base portion 223 does not protrude from the upper panel 211 of the heat sink 2 and is spaced apart from the main body 21 on both sides in the first direction X. The provision of the base portion 223 facilitates the process of the connecting member 22 approaching the light source plate 3 and deforming, thereby further reducing the force required when the light source plate 3 enters the receiving portion. Furthermore, when the minimum distance between the claw portion 221 and the upper panel 211 in its natural state is smaller than the thickness of the region of the light source plate 3 located in the receiving portion, the base portion 223 slightly rebounds and applies a deformation force, so that the connecting member 22 is pressed firmly against the light source plate 3, bringing the light source plate 3 and the heat sink 2 into close contact with each other, which is beneficial for heat dissipation.

[0034] It is preferable that the base portion 223 is not covered by the light source plate 3 in the first direction X. In particular, with regard to the hole 311, the size of the hole 311 in the first direction X is larger than the size of the base portion 223 of the connecting member 22. In this way, when the base portion 223 deforms and protrudes from the upper panel 211, the base portion 223 does not push up the light source plate 3, and the light source plate 3 remains in close contact with the upper panel 211, which is helpful for heat dissipation.

[0035] In order to simplify the manufacturing process of the connection member 22 and increase the connection strength, the connection member 22 is preferably formed by cutting and bending the upper panel 211 of the heat sink 2.

[0036] 4 and 5 show the assembled relationship between the heat sink 2 and the light source plate 3. FIG.

[0037] In this embodiment, the extension directions of the two connecting members 22 are the same. However, in other embodiments, the extension directions of the multiple connecting members 22 may be arranged along an arc. In this case, the extension direction of each connecting member 22 is a tangent to the arc, the first direction X is the arc direction, and the heat sink 2 and the light source plate 3 are assembled by rotating them relatively along the arc direction.

[0038] In this embodiment, in order to facilitate connection between the unit formed by the heat sink 2 and the light source plate 3 and the housing 1, a connection hole 23 is formed in the upper panel 211 of the heat sink 2, and a storage groove 34 is formed in the light source plate 3, and the connection hole 23 and the storage groove 34 correspond to the connection post 11 located on the housing 1, thereby making the lighting fixture as a whole less likely to come off.

[0039] Next, the assembly structure of the housing 1, the heat sink 2, and the light source plate 3 will be described with reference to FIGS.

[0040] 6 and 7, connecting posts 11 are formed in the internal space of the housing 1, and the connecting posts 11 pass through the connecting holes 23 of the heat sink 2, with the heads of the connecting posts 11 engaging with each other and hooking onto the upper panel 211. Specifically, a protrusion 111 is formed on the portion of the connecting post 11 that passes through the connecting holes 23 and is exposed from the upper panel 211 of the heat sink 2, and the protrusion 111 is pressed against the upper panel 211 to fix the heat sink 2 to the housing 1.

[0041] The protrusions 111 are partially accommodated in the accommodating grooves 34 of the light source plate 3 located above the heat sink 2. The accommodating grooves 34 prevent interference between the connecting posts 11 and the light source plate 3, make the connecting posts 11 difficult to come into contact with each other, make the connection between the connecting posts 11 and the upper panel 211 difficult to be released, and protect the protrusions 111 so as to make the housing 1 and the heat sink 2 difficult to disassemble after being connected by engagement. Furthermore, the alignment of the connecting posts 11 with the accommodating grooves 34 positions the light source plate 3 in the first direction X.

[0042] It is preferable that the connecting posts 11 and the accommodating grooves 34 have approximately the same size in the first direction X. This completely limits the degree of freedom of the light source plate 3 in the first direction, and prevents the light source plate 3 from coming off the heat sink 2 in the first direction.

[0043] It should be understood that the accommodating groove 34 may not only form a closed hole inside the light source plate 3 as shown in Figures 6 and 7, but may also form an open groove on the periphery of the light source plate 3, as long as the periphery of the accommodating groove 34 and the connecting post 11 can be aligned.

[0044] The accommodation groove 34 may limit the degree of freedom of the light source plate 3 in both the first direction X and the second direction Y. In this case, the groove 31 does not need to limit the position of the connecting member 22 in the second direction Y, and the size of the groove 31 may be larger than the size of the connecting member 22 in the second direction Y.

[0045] The present invention provides an assembly method for the above lighting fixture, comprising the steps of: (a) a step of inserting the connecting member 22 of the heat sink 2 into the groove 31 located on the light source plate 3, and positioning the tabs 221 and the upper panel 211 of the heat sink 2 on both sides of the light source plate 3, respectively; (b) bringing the light source plate 3 and the heat sink 2 closer to each other along the first direction X, and allowing the light source plate 3 to partially enter the receiving portion formed by the claw portion 221 and the upper panel 211; (c) inserting the connecting posts 11 on the housing 1 into the connecting holes 23 of the heat sink 2 so that the protrusions 111 are pressed against the upper panel 211;

[0046] (Embodiment 2) An easy-to-assemble lighting fixture according to a second embodiment of the present invention will be described with reference to Figures 8 and 9. The second embodiment is a modification of the first embodiment, and the same reference numerals are used in the second embodiment for features that are the same as or similar to those in the first embodiment, and detailed descriptions of these features will be omitted.

[0047] In this embodiment, the groove 31 includes two opening grooves 312 formed on the periphery of the light source plate 3 for connection with the connecting member 22. After the claw portions of the connecting member 22 penetrate the opening grooves 312, the light source plate 3 and the heat sink 2 (see embodiment 1) approach each other along the extension direction of the claw portions, and the light source plate 3 is partially accommodated in the accommodating portion, thereby limiting the position of the heat sink 2 in the axial direction of the lighting fixture.

[0048] 8 and 9 indicate the orientation of the accommodating section formed by the connecting member 22. Here, the orientation of the two accommodating sections shown in Fig. 8 is the same, and the light source plate 3 is attached to the heat sink 2 so as to move parallel to the accommodating section, while the orientation of the two accommodating sections shown in Fig. 9 is opposite, and the light source plate 3 is attached to the heat sink 2 so as to rotate.

[0049] (Embodiment 3) An easy-to-assemble lighting fixture according to a third embodiment of the present invention will be described with reference to Figures 10 to 12. The third embodiment is a modification of the first embodiment, and the same reference numerals are used in the present embodiment for features that are the same as or similar to those in the first embodiment, and detailed descriptions of these features will be omitted.

[0050] In this embodiment, no groove is formed in the light source plate 3, and a flange 32 is formed on the outer periphery, protruding radially outward, and the flange 32 enters the storage portion formed by the connecting member 22 (see embodiment 1), causing the light source plate 3 to limit the position of the heat sink 2 in the axial direction of the lighting fixture.

[0051] 10 to 12 indicate the orientation of the accommodating section formed by the connecting member 22. Here, the orientation of the two accommodating sections shown in Fig. 10 is the same, and the light source plate 3 is attached to the heat sink 2 so as to move in parallel, the orientation of the two accommodating sections shown in Fig. 11 is opposite, and the light source plate 3 is attached to the heat sink 2 so as to rotate, and the openings of the two accommodating sections shown in Fig. 12 are provided opposite each other, and the light source plate 3 is attached to the heat sink 2 so as to move in parallel along a direction perpendicular to the first direction X (the direction shown by the dashed arrow in the figures), and the flange 32 enters the accommodating section without opening from the side edge of the accommodating section.

[0052] The present invention has at least one of the following advantages: (i) by providing connecting member 22, the screw connection or riveting between heat sink 2 and light source plate 3 is replaced, and the assembly of heat sink 2 and light source plate 3 can be completed by just pressing action, the structure of the lighting fixture is simple, the volume occupied by the connecting member is small, and it is efficient and easy; (ii) the connecting member 22 of the present invention is formed by cutting and punching out the heat sink 2, the one-piece structure is simple and reliable, and it is easy to produce; and (iii) the present invention has at least one of the following advantages: by aligning connecting posts 11 and connecting holes 23, the screw connection between the housing 1 and the heat sink is replaced, which is more convenient and simple, and the connecting posts 11 define the light source plate 3, which strengthens the alignment between the heat sink 2 and light source plate 3 and makes the connection between each component more reliable.

[0053] Naturally, the present invention is not limited to the above-described embodiments, and those skilled in the art can make various modifications to the above-described embodiments of the present invention based on the present invention without departing from the scope of the present invention.

[0054] For example, (i) the present invention does not limit the number and position of the connecting members 22, and in this embodiment, two connecting members 22 are provided on the heat sink 2, but this is to limit the light source plate 3 to the plane in which the upper panel 211 is located, and a better fixing effect can be obtained by providing more connecting members 22, and good effects can be obtained by measures such as increasing the contact area between the claw portion 221 and the light source plate 3 and increasing the contact force of the claw portion 221 against the light source plate 3 even with just one connecting member 22.

[0055] (ii) In the present invention, the heat sink 2 and the light source plate 3 are connected first, so the protrusions 111 of the connection posts 11 of the housing 1 may be provided so as to be pressed against the upper surface of the light source plate 3 .

[0056] (iii) The present invention does not limit the number and position of the connecting posts 11. In this embodiment, two connecting posts 11 are provided symmetrically on the housing 1, but a better fixing effect can be obtained by providing more connecting posts 11. A good fixing effect can also be obtained with just one connecting post 11 by taking measures such as increasing the contact area between the protrusion 111 and the heat sink or light source plate 3.

[0057] (iv) The size of the accommodation groove 34 in the first direction X and the second direction Y may be equal to the size of the connecting post 11 so that the degree of freedom of the light source plate 3 in both the first direction X and the second direction Y is limited. In this case, the groove 31 does not need to limit the position of the connecting member 22 in the second direction Y, and the size of the groove 31 in the second direction Y may be larger than the size of the connecting member 22. [Explanation of symbols]

[0058] 1 chassis 11 Connecting pillar 111 Protrusion 2 Heatsink 21 Main Unit 211 Top Panel 22 Connecting member 221 Claw 222 Arm 223 Base 23 Connection hole 3 Light source board 31 Groove 311 holes 312 Opening groove 32 flange 34 Storage groove

Claims

1. A heat sink and a light source plate, the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, The connecting member is formed by cutting and bending a portion of the heat sink. Lighting fixtures.

2. A heat sink and a light source plate, the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, the arm portion includes a base portion connected to the main body, the base portion extends along the first direction; The base portion does not protrude from the upper panel and is spaced apart from the upper panel on both sides in the first direction. Lighting fixtures.

3. The base portion is not covered by the light source plate.

3. A lighting fixture according to claim 2.

4. A heat sink and a light source plate, the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, The distance between the claw portion and the upper panel at the entrance of the storage portion is greater than the minimum distance between the claw portion and the upper panel. Lighting fixtures.

5. There are a plurality of connecting members, The extension directions of the claw portions of the plurality of connecting members are parallel to each other, or The plurality of connecting members are arranged along an arc of a circle whose center is the center of the upper panel of the heat sink, and the extending direction of the claw portion of each connecting member is a tangential direction of the arc. The lighting fixture according to any one of claims 1 to 4.

6. A heat sink and a light source plate, the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, One or more grooves are formed in the light source plate; The connecting member partially passes through the groove. Lighting fixtures.

7. At least one of the grooves is located inside the light source plate and forms a hole; and / or At least one of the grooves is located on the periphery of the light source plate and forms an open groove that opens toward the outer periphery.

7. A lighting fixture according to claim 6.

8. Regarding the hole formed inside the light source plate, the size of the hole in the first direction the size of the base portion of the connecting member is larger than the size of the base portion of the connecting member.

8. A lighting fixture according to claim 7.

9. A heat sink and a light source plate, the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, the outer periphery of the light source plate partially protrudes outward to form at least one flange; At least a portion of the flange is accommodated in the accommodation portion. Lighting fixtures.

10. A lighting fixture, a heat sink and a light source plate; the heat sink includes a body and one or more connecting members; the connecting member includes a claw portion and an arm portion, The claw portion protrudes from an upper panel of the main body, the arm portion connects the claw portion and the main body, A receiving portion is formed between the upper panel of the main body and the claw portion, The claw portion extends along a first direction, the light source plate is partially accommodated in the accommodation portion, and a position of the light source plate relative to the heat sink is limited in a direction perpendicular to the light source plate; One surface of the light source plate is mated with the upper panel of the heat sink; The other surface of the light source plate is mated with the claw portion, The lighting device further includes a housing that accommodates the heat sink and the light source plate, the housing includes a connecting post that connects to the heat sink; The heat sink has connection holes corresponding to the connection posts; the connecting post includes a protrusion that partially penetrates the connecting hole and is exposed from the upper panel of the heat sink; The light source plate is formed with a receiving groove corresponding to the connecting post; the connecting post is at least partially received in the receiving groove after passing through the connecting hole; The protrusion is pressed against the upper panel of the heat sink, or the protrusion is pressed against the side of the light source plate opposite to the upper panel. Lighting fixtures.

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