Built-in driver power lamp

Abstract

The present invention discloses a lamp with built-in driving power supply. The lamp with built-in driving power supply of the present invention includes a lampshade, a light bar and a DC power supply assembly. The heat sink and the light output cover define a light bar accommodating cavity, and the heat sink and the reflector define a power accommodating cavity. The power supply housing in the DC power supply assembly is interference-set in the power accommodating cavity, and the heat sink and the reflector are respectively abutted against the upper and lower sides of the power supply housing. The heat sink generates an extrusion force on the power supply housing, so the power supply housing will be clamped in the power accommodating cavity by the limiter and the reflector, and will not loosen. Since the power supply housing is made of plastic, it can be elastically inserted into or taken out of the power accommodating cavity under the action of a large external force. The installation and replacement process is simple to operate, and the built-in driving power supply lamp in the embodiment of the present invention does not need an external DC power conversion component when in use, thereby reducing the difficulty of installing the lamp and improving the convenience of use.

Description

Technical Field

[0001] The present invention relates to the field of lamps, and in particular to a lamp with a built-in driving power supply. Background Art

[0002] LED (light-emitting diode) lamps have the advantages of high light efficiency and low energy consumption and are widely used in the field of lighting. In the field of plant cultivation, LED lamps are also used as light sources for extending the light of plants. At present, some LED lamps can only be used under external power supply. Therefore, when the external power supply is AC, these LED lamps need external drive power components to be used, but external drive power components will increase the installation operation and installation difficulty of LED lamps. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a built-in driving power lamp, which can build a driving power converter into the lampshade to reduce the difficulty of installing the lamp.

[0004] A built-in DC power supply lamp according to an embodiment of the first aspect of the present invention includes:

[0005] A lampshade, wherein the interior of the lampshade is hollow and comprises a light emitting cover and a light reflecting cover;

[0006] A radiator, the radiator is arranged inside the lampshade, the reflector and the light output cover are respectively located at the upper and lower sides of the radiator, the radiator and the light output cover define a light bar accommodating cavity, the radiator and the reflector define a power supply accommodating cavity, the radiator includes a heat dissipation substrate and a plurality of stoppers, the stoppers protrude relative to the heat dissipation substrate toward a side where the reflector is located;

[0007] A light bar, the light bar being arranged in the light bar accommodating cavity, and the light emitting surface of the light bar facing the light emitting cover;

[0008] A driving power supply component, wherein the driving power supply component is arranged in a power supply accommodating cavity, the driving power supply component comprises a power supply shell and a DC power supply conversion component, the interior of the power supply shell is hollow, the DC power supply conversion component is arranged inside the power supply shell, the power supply shell is made of plastic, the power supply shell is interference-arranged in the power supply accommodating cavity, and the reflector and the heat sink are respectively supported on the upper and lower sides of the power supply shell, the driving power supply component is electrically connected to the light bar, the DC power supply conversion component is used to connect to an external power grid, and the driving power supply component can convert AC power into DC power.

[0009] The built-in driving power lamp according to the embodiment of the present invention has at least the following beneficial effects: by embedding the DC power conversion element inside the lampshade, the built-in driving power lamp does not need to be connected to an external driving power source, which reduces the operation of the lamp during installation, reduces the difficulty of installing the built-in driving power lamp, and enables the lamp to be directly connected to AC power for use, thereby improving the convenience of use. In addition, in the built-in driving power lamp in the embodiment of the present invention, the power supply housing is arranged in the power supply accommodating cavity by interference, and the power supply housing is clamped by the heat sink and the reflector, thereby realizing the fixing of the power supply housing in the power supply accommodating cavity. The DC power supply assembly of the built-in driving power lamp in the embodiment of the present invention does not need to be additionally provided with a mounting bracket or other structures, and the installation and fixing of the driving power assembly is realized only by the matching limit between the heat sink and the reflector. Therefore, the built-in driving power lamp in the embodiment of the present invention has low cost and small size, and only needs to rely on the elasticity of the power supply housing to insert the power supply housing between the limiter and the reflector to realize the fixing of the power supply housing, and the operation is simple.

[0010] According to some embodiments of the present invention, the heat sink includes a heat dissipation substrate and a plurality of limiting members, wherein the limiting members protrude relative to the heat dissipation substrate toward a side where the reflector is located, and the limiting members abut against the bottom of the power supply housing.

[0011] According to some embodiments of the present invention, the heat sink includes two limiting members, and the two limiting members are respectively held against two sides of the power supply housing along the width direction of the lampshade.

[0012] According to some embodiments of the present invention, the power supply shell includes a first contact surface and a second contact surface, the first contact surface and the second contact surface are respectively located on both sides of the power supply shell along the width direction of the lampshade, the first contact surface and the second contact surface are both inclined along the width direction of the lampshade toward the middle of the power supply accommodating cavity along the width direction of the lampshade, and the two limiting members are respectively abutted against the first contact surface and the second contact surface.

[0013] According to some embodiments of the present invention, the lampshade is respectively connected to end covers at both ends along the length direction, the limiting member extends along the length direction of the lampshade, and the limiting member is provided with mounting holes at both ends along the length direction of the lampshade, and the end cover is provided with a connecting hole, and a threaded connector is passed through the connecting hole and the mounting hole, and the end cover is threadedly connected to the limiting member through the threaded connector.

[0014] According to some embodiments of the present invention, the heat dissipation substrate is provided with card slots at both ends along the width direction of the lampshade, and a card plate is provided inside the reflector at a corresponding position of the card slot. The card plate extends into the card slot along the width direction of the lampshade and abuts against the slot wall of the card slot.

[0015] According to some embodiments of the present invention, the card slot extends horizontally along the width direction of the lampshade, and the card plate is inclined toward the side where the light output cover is located.

[0016] According to some embodiments of the present invention, two limit blocks are further provided at the bottom of the heat dissipation substrate, and the two limit blocks are respectively located at the two ends of the heat dissipation substrate along the width direction of the lampshade, and the limit blocks are inclined toward the side close to the light output cover, and there is a gap between the limit blocks and the light output cover.

[0017] According to some embodiments of the present invention, a pair of protrusions are provided on the side of the heat dissipation substrate facing the light output cover, and limiting walls are respectively provided on the sides of the protrusions facing each other. A slot is defined between the heat dissipation substrate, the protrusions and the limiting walls, and the slot is connected to the light strip accommodating cavity. The light strip is arranged in the slot.

[0018] According to some embodiments of the present invention, the lampshade is respectively connected to end covers at both ends along the length direction, a first connector is provided on the end cover at one end of the lampshade along the length direction, and a second connector is provided on the end cover at the other end of the lampshade along the length direction, connecting circuits are provided inside the first connector and the second connector for connecting to external power grids respectively, the connecting circuits are also electrically connected to the driving power conversion component, and the first connector is used to connect to the second connector of an adjacent built-in driving power lamp when multiple built-in driving power lamps are spliced.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 It is a schematic diagram of the structure of a lamp with built-in driving power supply in one embodiment of the present invention;

[0022] Figure 2 For the present invention Figure 1 An exploded schematic diagram of a lamp with a built-in driving power supply in an embodiment;

[0023] Figure 3 A schematic diagram of a portion of the internal structure of a lamp with a built-in driving power supply in one embodiment of the present invention;

[0024] Figure 4 For the present invention Figure 3 A schematic structural diagram of a heat sink for a lamp with a built-in driving power supply in an embodiment;

[0025] Figure 5 FIG. 1 is a partial structural diagram of a lamp with a built-in driving power supply in one embodiment of the present invention.

[0026] Reference numerals:

[0027] Lamp cover 100, light output cover 110, light bar accommodating cavity 111, reflector 120, power supply accommodating cavity 121, clamping plate 122, ceiling mounting member 130;

[0028] End cover 200, connecting hole 210, threaded connector 211, waterproof plug 220, first connector 230, second connector 240, plug-in fixing member 250, plug-in hole 260, waterproof cover 270, reinforcing rib 280;

[0029] Radiator 300, heat dissipation substrate 310, card slot 311, limit block 312, slot 313, limit wall 314, protrusion 315, limit member 320, mounting hole 321;

[0030] Light bar 400, light bar substrate 410, lamp beads 420;

[0031] A DC power supply assembly 500 , a power supply housing 510 , a first contact surface 511 , a second contact surface 512 , and a DC power supply conversion element 520 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0037] Reference Figures 1 to 5 In one embodiment of the present invention, a lamp with a built-in DC power supply is provided, including a lampshade 100, a light bar 400 and a DC power supply assembly 500.

[0038] The interior of the lampshade 100 is hollow, and the lampshade 100 includes a light emitting cover 110 and a reflector 120. The light emitting cover 110 in the lampshade 100 is the cover body of the light emitting part of the lampshade 100, and the light emitting cover 110 can be made of a light-transmitting plastic material, such as light-transmitting PC (polycarbonate). The reflector 120 is the cover body of the light-reflecting part of the lampshade 100, and the reflector 120 can be made of a light-transmitting plastic material, such as opaque PC (polycarbonate). The light emitting cover 110 and the reflector 120 can be formed in one piece, or they can be connected as one piece to form the lampshade 100 by gluing, hot melting, etc.

[0039] Reference Figure 3, the heat sink 300 is arranged inside the lampshade 100, the reflector 120 and the light emitting cover 110 are respectively located at the upper and lower sides of the heat sink 300, the heat sink 300 and the light emitting cover 110 define a light bar accommodating cavity 111, and the heat sink 300 and the reflector 120 define a power accommodating cavity 121. The light bar 400 is arranged in the light bar accommodating cavity 111, and the light emitting surface of the light bar 400 faces the light emitting cover 110, so that the light generated by the light bar 400 can be transmitted from the light emitting cover 110. In some embodiments, the light bar 400 includes a light bar substrate 410 and a plurality of lamp beads 420. The heat sink 300 can be made of a material with high thermal conductivity, such as aluminum alloy, thermal conductive plastic, etc. The heat sink 300 can conduct heat to conduct the heat generated by the light bar 400 to reduce the temperature inside the lampshade 100, avoid excessive temperature, and damage the driving power conversion component 520 and the lamp beads 420. The lamp beads 420 are arranged on the side of the light bar substrate 410 facing the light output cover 110, so that the light generated by the lamp beads 420 can be transmitted from the light output cover 110. The light bar substrate 410 can be made of a material with high thermal conductivity such as aluminum, aluminum alloy or thermal conductive plastic to transfer the heat generated by the lamp beads 420 to the radiator 300. The lamp beads in the embodiment of the present invention can be LED lamp beads. The radiator 300 can be connected to the light output cover 110 or the reflector 120. In some embodiments, the end caps 200 are respectively connected to the two ends of the lampshade 100 along the length direction, and the two ends of the radiator 300 along the length direction can also be respectively connected to the two end caps 200 to be fixed inside the lampshade 100.

[0040] Reference Figure 3 The driving power supply assembly 500 is arranged in the power supply accommodating chamber 121. The driving power supply assembly 500 includes a power supply housing 510 and a driving power supply conversion element 520. The interior of the power supply housing 510 is hollow. The driving power supply conversion element 520 is arranged inside the power supply housing 510. The driving power supply conversion element 520 is electrically connected to the lamp bead 420. The driving power supply conversion element 520 is used to connect to the external power grid. The driving power supply conversion element 520 can convert AC power into DC power. Therefore, even if the external connection is AC power, it will be converted into DC power after passing through the driving power supply conversion element 520, so that the built-in driving power supply lamp is no longer limited to the type of external power supply. The driving power supply conversion element 520 includes but is not limited to circuit structures such as a DC power adapter, a voltage stabilizer, and a rectifier. The LED lamp in the embodiment of the present invention does not need an external driving power supply conversion element 520 when in use, thereby reducing the difficulty of installing the lamp and improving the convenience of use. In addition, the power supply accommodating chamber 121 can also provide a storage space for the connection line of the driving power supply conversion element, which is convenient for wiring.

[0041] The power supply housing 510 is made of plastic, wherein the plastic material includes but is not limited to plastic materials such as polypropylene, polyamide and polycarbonate. Plastic materials have certain elasticity and toughness, so they can be slightly deformed when subjected to external force and will not break. The shape of the power supply housing 510 can be a cuboid, a cylinder or other shapes. The power supply housing 510 is interference-set in the power supply housing cavity 121, and the reflector 120 and the radiator 300 are respectively held at the upper and lower sides of the power supply housing 510, and the radiator 300 generates an extrusion force on the power supply housing 510, so the power supply housing 510 is clamped in the power supply housing cavity 121 by the stopper 320 and the reflector 120, and will not loosen. Since the power supply housing 510 is made of plastic, it can be inserted into the power supply housing cavity 121 or taken out from the power supply housing cavity 121 by elasticity under the action of a large external force, and its installation and replacement process are simple to operate. In order to prevent the power supply housing 510 from breaking, a plastic material with good toughness, such as polycarbonate, can be selected.

[0042] In some embodiments, the heat sink 300 includes a heat dissipation substrate 310 and a plurality of stoppers 320. The stoppers 320 protrude relative to the heat dissipation substrate 310 toward the side where the reflector 120 is located, and the stoppers 320 abut against the bottom of the power supply housing 510. The stoppers 320 may be formed integrally with the heat dissipation substrate 310, or may be connected integrally by welding, threaded connection, or the like. The stoppers 320 may be structures such as convex blocks, convex plates, and bosses. The shape of the stoppers 320 may be a rectangular parallelepiped, a truncated cone, a cylindrical shape, or other regular or irregular shapes. The stoppers 320 may be in point contact, line contact, or surface contact with the power supply housing 510. The stoppers 320 abut against the bottom of the power supply housing 510, and may generate a limiting extrusion force on the power supply housing 510, so that the power supply housing 510 is clamped in the power supply accommodating cavity 121. The bottom of the power supply housing 510 is not limited to the bottom end of the power supply housing 510, but should be understood to include the bottom end of the power supply housing 510 and a portion close to the bottom end of the power supply housing 510. Figure 3 The stopper 320 protrudes relative to the heat dissipation substrate 310, thereby increasing the height of the heat sink 300 in the up and down directions. Compared with increasing the height of the heat dissipation substrate 310 as a whole, the thickness of the heat dissipation substrate 310 can be reduced, thereby reducing the use of materials.

[0043] The built-in driving power lamp in the embodiment of the present invention, by embedding the driving power conversion element 520 inside the lampshade 100, does not need to be connected to an external DC power conversion element, reduces the operation of the lamp during installation, reduces the difficulty of installing the built-in driving power lamp, and enables the built-in driving power lamp to be directly connected to AC power for use, thereby improving the convenience of use. In addition, in the built-in driving power lamp in the embodiment of the present invention, the power housing 510 is interference-set in the power accommodating cavity 121, and the power housing 510 is clamped by the heat sink 300 and the reflector 120, thereby fixing the power housing 510 in the power accommodating cavity 121. The built-in driving power supply lamp driving power supply component 500 in the embodiment of the present invention does not need to be additionally provided with a mounting bracket or other structures, and the installation and fixation of the DC power supply component 500 is achieved only through the matching limit between the heat sink 300 and the reflector 120. Therefore, the built-in driving power supply lamp in the embodiment of the present invention has low cost and small size, and only needs to rely on the elasticity of the power supply shell 510 to insert the power supply shell 510 between the heat sink 300 and the reflector 120 to achieve the fixation of the power supply shell 510, and the operation is simple.

[0044] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the heat sink 300 includes two stoppers 320, and the two stoppers 320 are respectively held against two sides of the bottom of the power supply housing 510 along the width direction of the lampshade 100. Figure 3 The width direction of the lampshade 100 is the left-right direction, and the two limiting members 320 respectively provide extrusion limiting for the power supply housing 510 on the left and right sides below the power supply housing 510, so as to provide support for the power supply housing 510 and clamp the power supply housing 510 in the power supply accommodating cavity 121. The power supply housing 510 is limited in the left and right directions by the reflector 120 above and the two limiting members 320 below, and has good stability. The upper surface of the power supply housing 510 can be set to fit with the inner surface of the reflector 120 to increase the limiting effect of the reflector 120 on the power supply housing 510.

[0045] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the power supply housing 510 includes a first contact surface 511 and a second contact surface 512, and the first contact surface 511 and the second contact surface 512 are respectively located on both sides of the power supply housing 510 along the width direction of the lampshade 100. The first contact surface 511 and the second contact surface 512 are both inclined along the width direction of the lampshade 100 toward the middle of the power supply accommodating cavity 121 along the width direction of the lampshade 100, referring to Figure 3, the width direction of the lampshade 100 is the left-right direction, the first contact surface 511 is located on the left side of the power supply housing 510, and the middle part of the power supply accommodating cavity 121 along the width direction of the lampshade 100 is located on the right side of the first contact surface 511, so the first contact surface 511 is inclined to the right. The inclination direction of the second contact surface 512 is opposite to the inclination direction of the first contact surface 511. The two stoppers 320 are respectively abutted against the first contact surface 511 and the second contact surface 512 of the power supply housing 510. Both the first contact surface 511 and the second contact surface 512 of the power supply housing 510 are inclined surfaces inclined toward the inside of the lampshade 100, which is more conducive to the power supply housing 510 being inserted into the power supply accommodating cavity 121, and is convenient for installation operations. In some embodiments, the first contact surface 511 and the second contact surface 512 are symmetrical inclined surfaces so that the structural force of the power supply housing 510 is more stable.

[0046] In some embodiments, the limit member 320 is cylindrical, and there is line contact between the cylindrical limit member 320 and the power housing 510. Compared with surface contact, line contact makes it easier for the power housing 510 to be inserted into the power accommodating cavity 121; compared with point contact, line contact has better stability.

[0047] Reference Figure 3 and Figure 5 In some embodiments of the present invention, the lampshade 100 is connected to the end caps 200 at both ends along the length direction, the stopper 320 extends along the length direction of the lampshade 100, and the stopper 320 is provided with mounting holes 321 at both ends along the length direction of the lampshade 100, and the end cap 200 is provided with a connecting hole 210, and the connecting hole 210 and the mounting hole 321 are penetrated with a threaded connector 211, and the end cap 200 is threadedly connected with the stopper 320 through the threaded connector 211, so that the radiator 300 is fixed on the end cap 200. The end cap 200 is threadedly connected with the stopper 320, so that the stopper 320 can be removed from the end cap 200, which is convenient for later replacement. The threaded connector 211 includes but is not limited to various screws, bolts and other parts. In some embodiments, the threaded connector 211 is a self-tapping screw to reduce machine thread processing and save processing costs. When the threaded connector 211 is a self-tapping screw, the limiting member 320 may be provided with a notch, the notch is connected to the mounting hole 321 and passes through the limiting member 320 to prevent the self-tapping screw from slipping.

[0048] Reference Figure 2 and Figure 5In some embodiments of the present invention, the hole wall of the connecting hole 210 protrudes toward the side away from the lampshade 100, and a waterproof plug 220 is further provided in the connecting hole 210. The waterproof plug 220 is located on the side of the threaded connector 211 away from the lampshade 100, and the waterproof plug 220 fits with the hole wall of the connecting hole 210. The waterproof plug 220 is used for waterproofing, and may be made of waterproof materials such as silicone and rubber. The waterproof plug 220 fits with the hole wall of the connecting hole 210, thereby filling the entire connecting hole 210 to prevent water from seeping into the connecting hole 210. In an embodiment in which a plurality of connecting holes 210 are provided, the plurality of waterproof plugs 220 may be connected as one to facilitate simultaneous installation and save operation. For example, referring to 2 and Figure 5 The end cover 200 is provided with two connection holes 210, and the two waterproof plugs 220 are connected as one. A groove may be provided on the end cover 200 to accommodate the connection portion between the two waterproof plugs 220.

[0049] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the heat dissipation substrate 310 is provided with a card slot 311 at both ends along the width direction of the lampshade 100, and a card plate 122 is provided inside the reflector 120 at a position corresponding to the card slot 311. The card plate 122 extends into the card slot 311 along the width direction of the lampshade 100 and abuts against the slot wall of the card slot 311. The width direction of the lampshade 100 is the left-right direction, and the heat sink 300 is provided with a card slot 311 at both ends. The reflector 120 is provided with a card plate 122 at both ends. The two card plates 122 are inserted into the card slot 311 from the left and right ends and abut against the slot wall of the card slot 311, so that the upper surface of the card plate 122 can provide support for the card slot 311. During the assembly process, the card plate 122 is inserted into the card slot 311 of the heat sink 300, so that the heat sink 300 can be initially positioned in the lampshade 100, which is simple to operate and convenient for subsequently fixing the heat sink 300 to the end cover 200. The card slot 311 can be set to extend horizontally in the left and right directions, which is convenient for processing and installation operations. The card slot 311 can also be set as a non-horizontally extending slot, for example, it is tilted downward, and the card plate 122 is inserted into the card slot 311 from the bottom of the card slot 311.

[0050] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the slot 311 extends horizontally along the width direction of the lampshade 100, and the card plate 122 is inclined toward the side where the light output cover 110 is located, so that the card plate 122 and the slot wall of the slot 311 are not completely in contact. Figure 3, the card slot 311 extends horizontally in the left-right direction, and the card plate 122 is tilted downward. Compared with the card plate 122 set horizontally, the card plate 122 set tilted downward increases the length of the card plate 122 in the vertical direction, so that the vertical width of the card slot 311 of the radiator 300 also needs to be increased accordingly, so that the card plate 122 can be inserted into the card slot 311 and resist the slot wall of the card slot 311. The vertical width of the card slot 311 of the radiator 300 is increased to prevent the vertical width of the card slot 311 of the radiator 300 from being too small and collapsing. Usually, the thickness of the card plate 122 needs to be increased in the vertical direction to increase the vertical width of the card slot 311 of the radiator 300. In this embodiment, by setting the card plate 122 to be tilted, the length of the card plate 122 in the vertical direction is increased, and there is no need to increase the thickness of the card plate 122 in the vertical direction, thereby saving manufacturing costs.

[0051] Reference Figure 3 and Figure 4 In some embodiments of the present invention, two stop blocks 312 are further provided at the bottom of the heat dissipation substrate 310. The two stop blocks 312 are respectively located at the two ends of the heat dissipation substrate 310 along the width direction of the lampshade 100. The stop blocks 312 are inclined toward the side close to the light output cover 110, and there is a gap between the stop blocks 312 and the light output cover 110. When the heat dissipation substrate 310 is loose, the stop blocks 312 will move accordingly. Since the stop blocks 312 are inclined toward the side close to the light output cover 110, when the stop blocks 312 move to the contact and abutment between the stop blocks 312 and the light output cover 110, the heat dissipation substrate 310 will be limited by the light output cover 110. Among them, the gap width between the stop blocks 312 and the light output cover 110 should be set in a small range to avoid excessive movement of the heat dissipation substrate 310 due to looseness. In some embodiments, the gap width between the stop blocks 312 and the light output cover 110 is set between 0.1 mm and 0.4 mm.

[0052] Reference Figure 3 and Figure 4 In some embodiments of the present invention, a pair of protrusions 315 are provided on the side of the heat dissipation substrate facing the light output cover, and limiting walls 314 are provided on the sides of the protrusions 315 facing each other. A slot 313 is defined between the heat dissipation substrate 310, the protrusions 315 and the limiting walls 314. The slot 313 is connected to the light bar accommodating cavity 111, and the light bar 400 is arranged in the slot. Figure 3, the two protrusions 315 are respectively located at the left and right ends of the slot 313, and the limiting wall 314 is arranged in the slot 313, so that the two limiting walls 314 are located below the light bar 400, so that the two limiting walls 314 can support the light bar 400 from the left and right ends. In addition, since the protrusions 315 and the limiting walls 314 are not arranged at both ends of the length direction of the slot 313, the heat dissipation substrate 310 can be directly inserted into the slot 313 from one end of the heat dissipation substrate 310 along the length direction of the lampshade 100, which is convenient for installation and later maintenance and replacement.

[0053] Reference Figure 2 In some embodiments of the present invention, a waterproof sleeve 270 is provided between the end cover 200 and the lampshade 100. A sleeve groove is provided on the side of the waterproof sleeve 270 facing the lampshade 100. The lampshade 100 is arranged in the sleeve groove. The surface of the lampshade 100 fits with the groove wall of the sleeve groove. The end cover 200 is sleeved on the waterproof sleeve 270 and fits with the waterproof sleeve 270. The waterproof sleeve 270 is waterproof and can be made of materials such as silicone and rubber. The inner and outer sides of the waterproof sleeve 270 are respectively fitted to the lampshade 100 and the end cover 200 to fill the gap between the lampshade 100 and the end cover 200 to prevent water from penetrating into the lampshade 100.

[0054] Reference Figure 1 and Figure 2In some embodiments of the present invention, the lampshade 100 is connected to end caps 200 at both ends along the length direction, a first connector 230 is provided on the end cap 200 at one end of the lampshade 100 along the length direction, and a second connector 240 is provided on the end cap 200 at the other end of the lampshade 100 along the length direction. Connection lines are provided inside the first connector 230 and the second connector 240 to connect to the external power grid respectively. The connection lines are also electrically connected to the driving power conversion component 520 so that the external mains power is electrically connected to the lamp bead 420 through the driving power conversion component 520. The first connector 230 is used to connect to the second connector 240 of the adjacent built-in driving power lamp when multiple built-in driving power lamps are spliced. The first connector 230 and the second connector 240 can be male and female connectors used in related fields. For example, specifically, the first connector 230 is provided with a pin, and the second connector 240 is provided with a socket, the pin can be inserted into the socket, and the socket can be provided with structures such as buckles and springs to achieve a fixed connection with the pin. In this embodiment, during use, multiple built-in driving power lamps can be connected in series through the first connector 230 and the second connector 240, which is convenient for the common installation and use of multiple built-in driving power lamps. The outer surface of the first connector 230 and the outer surface of the second connector 240 can be made of insulating waterproof materials, such as plastic, to prevent the internal connection line from being broken due to water ingress. The connection method between the first connector 230, the second connector 240 and the end cover 200 can be hot melt, buckle connection, threaded connection and the like.

[0055] Reference Figure 2 and Figure 5 In some embodiments of the present invention, a plug hole 260 is provided on the end cover 200, and a plug fixing member 250 is provided at one end of the first plug connector 230 and the second plug connector 240 connected to the end cover 200. The plug fixing member 250 is inserted into the plug hole 260, and the plug fixing member 250 and the plug hole 260 are interference fit. The plug fixing member 250 can be a nut. The plug fixing member 250 in this embodiment can be made of plastic, so that the plug fixing member 250 can be directly inserted into the plug hole 260 by relying on its own elasticity, and is fixed in the plug hole 260 due to the interference fit with the plug hole 260, which is easy to install.

[0056] Reference Figure 5 In some embodiments of the present invention, a plurality of reinforcing ribs 280 are disposed around the plug hole 260 to increase the strength of the end cover 200 near the plug hole 260 to prevent damage.

[0057] Reference Figure 1In some embodiments of the present invention, a ceiling mounting member 130 is provided on the top of the lampshade 100, and a threaded connection hole 210 or a snap-fit ​​structure is provided on the ceiling mounting member 130 to facilitate the lampshade 100 to be directly fixed to the ceiling or the bracket through the threaded connection member 211 or the snap-fit ​​structure.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A lamp with a built-in driver power supply, characterized in that: include: A lampshade, wherein the interior of the lampshade is hollow and comprises a light emitting cover and a light reflecting cover; A radiator, the radiator is arranged inside the lampshade, the reflector and the light output cover are respectively located at the upper and lower sides of the radiator, the radiator and the light output cover define a light bar accommodating cavity, the radiator and the reflector define a power supply accommodating cavity, the radiator includes a heat dissipation substrate and a stopper, the stopper protrudes relative to the heat dissipation substrate toward the side where the reflector is located; The end cap is provided with a connecting hole, and the two ends of the lampshade along the length direction are respectively connected with the end caps, the limiting member extends along the length direction of the lampshade, and the two ends of the limiting member along the length direction of the lampshade are provided with mounting holes, and the connecting hole and the mounting hole are penetrated with threaded connectors, and the end cap is threadedly connected with the limiting member through the threaded connector; A light bar, the light bar being arranged in the light bar accommodating cavity, and the light emitting surface of the light bar facing the light emitting cover; A driving power supply component, the driving power supply component is arranged in the power supply accommodating cavity, the driving power supply component includes a power supply housing and a DC power supply conversion component, the interior of the power supply housing is hollow, the DC power supply conversion component is arranged inside the power supply housing, the power supply housing is made of plastic, the power supply housing is interference-arranged in the power supply accommodating cavity, and the reflector and the radiator are respectively abutted against the upper and lower sides of the power supply housing, the driving power supply component is electrically connected to the light bar, the driving power supply component is used to connect to an external power grid, the driving power supply component can convert AC power into DC power, the power supply housing includes a first contact surface and a second contact surface, the first contact surface and the second contact surface are respectively located on both sides of the power supply housing along the width direction of the lampshade, and the first contact surface and the second contact surface are both inclined along the width direction of the lampshade toward the middle of the power supply accommodating cavity along the width direction of the lampshade; Wherein, the heat sink includes two limit members, the two limit members are respectively abutted against two sides of the bottom of the power supply housing along the width direction of the lampshade, and the two limit members are respectively abutted against the first contact surface and the second contact surface.

2. The lamp with built-in driving power supply according to claim 1, characterized in that: The heat dissipation substrate is provided with slots at both ends along the width direction of the lampshade, and a clamping plate is provided inside the reflector at a corresponding position of the slot. The clamping plate extends into the slot along the width direction of the lampshade and abuts against the slot wall.

3. The lamp with built-in driving power supply according to claim 2, characterized in that: The clamping groove extends horizontally along the width direction of the lampshade, and the clamping plate is inclined toward the side where the light output cover is located.

4. The lamp with built-in driving power supply according to claim 3, characterized in that: Two limit blocks are also provided at the bottom of the heat dissipation substrate. The two limit blocks are respectively located at the two ends of the heat dissipation substrate along the width direction of the lampshade. The limit blocks are inclined toward the side close to the light output cover, and there is a gap between the limit blocks and the light output cover.

5. The lamp with built-in driving power supply according to claim 1, characterized in that: A pair of protrusions are arranged on the side of the heat dissipation substrate facing the light output cover, and limiting walls are arranged on the sides of the protrusions facing each other. A slot is defined between the heat dissipation substrate, the protrusions and the limiting walls, and the slot is connected to the light bar accommodating cavity. The light bar is arranged in the slot.

6. The lamp with built-in driving power supply according to any one of claims 1 to 5, characterized in that: The lampshade is respectively connected to end covers at both ends along the length direction, a first connector is arranged on the end cover at one end of the lampshade along the length direction, and a second connector is arranged on the end cover at the other end of the lampshade along the length direction, connecting circuits are arranged inside the first connector and the second connector for connecting to external power grids respectively, and the connecting circuits are also electrically connected to the driving power supply assembly, and the first connector is used to connect to the second connector of an adjacent built-in driving power supply lamp when multiple built-in driving power supply lamps are spliced.

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