Guide rail spotlight with efficient heat dissipation and impact resistance

Abstract

The guide rail spotlight comprises a guide rail head, a power source box, a direction adjusting supporting rod and a lamp body outer shell, a light source assembly and a lens assembly are arranged in the lamp body outer shell, the lamp body outer shell comprises a shell body, a plurality of supporting rib plates are arranged on the inner wall of the shell body in the circumferential direction of the shell body, and a mounting disc is fixedly connected into the supporting rib plates; a heat dissipation surface and / or a thermal expansion structure for converting heat into self deformation are / is arranged on the plurality of supporting rib plates; a heat dissipation cushion layer is arranged on the side, facing the top wall of the shell, of the installation disc, a heat insulation cushion layer is arranged on the side, facing the opening of the shell, of the installation disc, and heat dissipation holes are formed in the top wall and the side wall of the shell. The light source assembly is installed on the installation disc, and the lens assembly is located between the installation disc and an opening of the lamp body shell. Heat generated by the light source assembly can be conducted to the heat dissipation cushion layer and the supporting rib plate, then heat dissipation is conducted through the heat dissipation cushion layer and the heat dissipation face of the supporting rib plate, the thermal shock resistance of the whole lamp body shell and the supporting rib plate is improved by arranging the thermal expansion structure, and the lighting effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and more specifically, it relates to a track spotlight with high heat dissipation and impact resistance. Background Art

[0002] Track spotlights are widely used for lighting in places such as shopping malls, hotels, and display windows. They mostly have an aluminum alloy housing, an internal LED light source, are rich in color, environmentally friendly and energy-saving, lightweight, simple, beautiful and generous. When in use, they are installed on the track or directly on the ceiling or wall, which can not only solve the basic lighting requirements but also highlight the key projection lighting requirements.

[0003] The track spotlight mainly includes a power supply box, a track head, a direction adjustment support rod, a lamp body housing, a light source component, and a lens component. It is found in practice that the main factor affecting the service life and use effect of the track spotlight is the heat generated by the light source. If the above heat is not removed in time, it will not only shorten the service life of the light source component but also cause thermal shock to the lamp body housing and the lens component, resulting in displacement of the lens component due to thermal expansion, affecting the structural stability and lighting effect of the track spotlight.

[0004] How to reduce the influence of the light source heat on the structure and lighting effect of the track spotlight is an urgent problem to be solved at present. Summary of the Utility Model

[0005] Aiming at the problem that the heat of the track spotlight light source has an adverse effect on the structure and lighting effect of the track spotlight in actual application, the purpose of this application is to propose a track spotlight with high heat dissipation and impact resistance, which can quickly and efficiently dissipate the heat of the light source outside the lamp body housing, and at the same time has a stable structure and strong heat shock resistance. The specific solutions are as follows:

[0006] A track spotlight with high heat dissipation and impact resistance includes a track head, a power supply box, a direction adjustment support rod, and a lamp body housing rotatably connected thereto. A light source assembly and a lens assembly are arranged in the lamp body housing;

[0007] The lamp body housing includes a cup-shaped shell. A plurality of support rib plates are integrally arranged along the circumferential direction of the inner wall of the shell. An installation plate for installing the light source assembly is fixedly connected in the area surrounded by the plurality of support rib plates. Locking screw holes are arranged on the installation plate;

[0008] A plurality of the support rib plates are provided with heat dissipation surfaces and / or a thermal expansion structure that converts heat into its own deformation;

[0009] A heat dissipation cushion layer is arranged on one side of the installation plate facing the top wall of the shell, an insulating cushion layer is arranged on one side of the installation plate facing the opening of the shell, and heat dissipation holes are opened on the top wall and side walls of the shell far from the opening;

[0010] The light source assembly is installed on the mounting plate, and the lens assembly is located between the mounting plate and the opening of the lamp body housing.

[0011] Through the above technical solution, the heat generated by the light source assembly during operation will be conducted to the heat dissipation cushion layer and the support rib plates, and then the heat will be dissipated through the heat dissipation characteristics of the heat dissipation cushion layer and the heat dissipation surface of the support rib plates themselves. At the same time, by setting a thermal expansion structure at a specific position on the support rib plates, it can be ensured that after the heat is conducted to the support rib plates, its expansion direction is along the set direction, improving the thermal shock resistance of the entire lamp body housing and the support rib plates, and ensuring that the relative position of the light source assembly will not shift due to thermal expansion and contraction, so as not to affect the lighting effect of the track spotlight.

[0012] Further, the lens assembly includes a lamp cup, a lens, and a hoop for fixedly installing the lamp cup and the lens in the lamp body housing;

[0013] The lamp cup is frustum-shaped and its narrow end abuts against the mounting plate, and the flared end of the lamp cup abuts against the hoop;

[0014] The hoop has an L-shaped cross-section, and an L-shaped locking groove is provided on the side wall of the hoop. A locking block adapted to the locking groove is provided on the inner side wall of the lamp body housing near the opening position;

[0015] The lens is snap-fitted between the lamp cup and the hoop.

[0016] Through the above technical solution, the lens assembly can be very conveniently installed in the lamp body housing and the relative position with the light source assembly is kept stable.

[0017] Further, the mounting plate is located at one end of the support rib plate close to the opening of the housing. An installation plate is connected between at least a pair of adjacent support rib plates and extends towards the opening of the housing to form a limiting surface for defining the position of the lamp cup. An installation guide groove is integrally bent or formed along the axial direction of the housing on the installation plate, and a positioning snap hole is provided at one end of the installation guide groove away from the opening of the housing;

[0018] The narrow end of the lamp cup is provided with a positioning snap block adapted to the positioning snap hole.

[0019] Through the above technical solution, the lamp cup can be stably installed in the lamp body housing through the interaction of the support rib plates, and the assembly efficiency of the lamp body is improved by setting the guiding surface.

[0020] Further, the housing includes a cylindrical housing and a cover plate located at the opening of one end of the cylindrical housing;

[0021] The cover plate is provided with strip-shaped heat dissipation holes and a plurality of buckles are arranged along its circumference at the edge. An annular clamping groove adapted to the buckles is provided at one end port of the cylindrical housing.

[0022] Through the above technical solution, after the cylindrical housing is fixedly connected to the direction adjustment support rod, the opening of the cylindrical housing can be shielded by the cover plate to prevent external dust and impurities from entering the inside of the lamp housing.

[0023] Furthermore, at least one guiding and limiting plate is arranged on one side of the edge of the cover plate facing the cylindrical housing. A guiding groove is axially formed in the guiding and limiting plate along the cylindrical housing, and an oblique angle is arranged at the opening of the guiding groove.

[0024] Through the above technical solution, the assembly efficiency between the cover plate and the cylindrical housing can be improved.

[0025] Furthermore, an L-shaped baffle is arranged on the cover plate below the strip-shaped heat dissipation holes, and the orthographic projection area of the L-shaped baffle on the cover plate covers the strip-shaped heat dissipation holes.

[0026] Through the above technical solution, the probability of dust and impurities in the external environment entering the lamp housing can be reduced without affecting the dissipation of the hot air inside the lamp housing.

[0027] Furthermore, the thermal expansion structure includes heat dissipation grooves and / or serrated heat dissipation protrusions that are alternately arranged at intervals along the length of the support rib away from the mounting plate.

[0028] Through the above technical solution, the heat received by the support rib plate can be transformed into its own thermal expansion deformation, thereby realizing the directional guidance of the deformation caused by heat and improving the thermal shock resistance of the entire lamp structure.

[0029] Furthermore, the support rib plate is arranged along the axial direction of the lamp housing, and a guiding inclined surface is arranged at one end close to the opening of the lamp housing.

[0030] Furthermore, the light source assembly includes a light source substrate and a light-emitting wafer arranged on the light source substrate. A heat-conducting member is arranged between the light source substrate, the heat dissipation cushion layer and the mounting plate.

[0031] Through the above technical solution, the heat generated on the light source substrate can be quickly dissipated, the service life of the light source assembly can be prolonged, and its continuous and stable operation can be ensured.

[0032] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0033] (1) By integrally arranging the mounting plate and the support rib plate, the heat generated by the light source assembly is conducted to the heat dissipation cushion layer and the support rib plate, and then the heat is dissipated through the heat dissipation characteristics of the heat dissipation cushion layer and the heat dissipation surface of the support rib plate itself, avoiding the accumulation of heat in the lamp housing and improving the service life of the light source assembly;

[0034] (2) By setting a thermal expansion structure at specific positions on the support rib plate, it can ensure that after heat is conducted to the support rib plate, its expansion direction is along the set direction, improving the thermal shock resistance of the entire lamp housing and the support rib plate, and ensuring that the relative positions of the light source components will not shift due to thermal expansion and contraction, thus affecting the lighting effect of the track spotlight. Description of the Drawings

[0035] Figure 1 It is an overall schematic diagram of a track spotlight;

[0036] Figure 2 It is an internal structure schematic diagram of the lamp housing;

[0037] Figure 3 It is a schematic diagram of the lens assembly;

[0038] Figure 4 It is Figure 3 A partial enlarged schematic diagram of part A in

[0039] Figure 5 It is a schematic diagram of the support rib plate.

[0040] Reference Numerals: 100, track head; 200, power supply box; 300, direction adjustment support rod; 400, lamp housing; 410, housing; 411, cylindrical housing; 412, cover plate; 414, buckle; 415, guiding and limiting plate; 416, guiding groove; 417, L-shaped baffle; 420, support rib plate; 421, mounting plate; 422, limiting surface; 423, mounting guide groove; 424, positioning and clamping hole; 425, heat dissipation groove; 426, guiding inclined surface; 430, mounting disc; 431, locking screw hole; 432, heat insulation cushion layer; 440, heat dissipation hole; 500, light source assembly; 600, lens assembly; 610, lamp cup; 620, lens; 630, hoop; 631, locking groove. Detailed Embodiments

[0041] The present application will be further described in detail below in conjunction with the embodiments and the drawings, but the embodiments of the present application are not limited thereto.

[0042] A track spotlight with high-efficiency heat dissipation and shock resistance, as Figure 1 shown, includes a track head 100, a power supply box 200, a direction adjustment support rod 300, and a lamp housing 400 rotatably connected thereto. A light source assembly 500 and a lens 620 assembly 600 are arranged inside the lamp housing 400.

[0043] The lamp housing 400 includes a cup-shaped housing 410 made of aluminum alloy material. Combining Figure 2 and Figure 3As shown in the figure, a plurality of support ribs 420 are integrally arranged along the circumferential direction of the inner wall of the housing 410. An installation disk 430 for installing the light source assembly 500 is fixedly connected within the circular area surrounded by the plurality of support ribs 420. The installation disk 430 is also made of aluminum alloy material, which is convenient for heat conduction and has high structural strength at the same time. The installation disk 430 is provided with locking screw holes 431 for fixing the light source substrate. In a specific embodiment, the installation substrate is integrally formed with the support ribs 420, and through holes for power supply cables to pass through are reserved thereon. The light source assembly 500 is installed on the installation disk 430, and the lens 620 assembly 600 is located between the installation disk 430 and the opening of the lamp housing 400.

[0044] The light source assembly 500 includes a light source substrate and light-emitting wafers arranged on the light source substrate. A heat-conducting member, such as a heat-conducting aluminum foil or a copper strip, is arranged between the light source substrate, the heat dissipation cushion layer and the installation disk 430.

[0045] Since the light source substrate is installed on the installation disk 430, in order to be able to quickly export the heat dissipated by it to the lamp housing 400, the plurality of support ribs 420 are provided with heat dissipation surfaces and / or thermal expansion structures that convert heat into its own deformation. In one embodiment, the installation ribs can be directly used as heat dissipation fins, or serrated holes can be opened on the installation ribs to increase their heat dissipation area. In another embodiment, as Figure 5 shown, the thermal expansion structure includes heat dissipation grooves 425 and / or serrated heat dissipation protrusions that are alternately arranged at intervals along the length direction of a section of the support rib away from the installation disk 430. The heat received by the support rib 420 can be converted into its own thermal expansion deformation, thereby realizing the directional guidance of the deformation caused by heat and improving the thermal shock resistance of the entire lamp body structure.

[0046] As Figure 3 shown, the support rib 420 is arranged along the axial direction of the lamp housing 400, and a guiding inclined surface 426 is arranged at one end close to the opening of the lamp housing 400.

[0047] In order to more fully conduct the heat dissipated by the light source assembly 500 to the installation disk 430 and dissipate it, a heat dissipation cushion layer is arranged on the side of the installation disk 430 facing the top wall of the housing 410, and a heat insulation cushion layer 432 is arranged on the side of the installation disk 430 facing the opening of the housing 410. Heat dissipation holes 440 are opened on the top wall and side wall of the housing 410 far from the opening. With the above structural settings, when the track spotlight is normally installed and used, the air with a lower temperature outside the lamp housing 400 will enter the lamp housing 400 from the heat dissipation holes 440 on the side wall of the lamp housing 400 to cool the heat dissipation cushion layer, and the heated hot air will rise and be discharged from the heat dissipation holes 440 on the top wall of the housing 410.

[0048] Preferably, the heat dissipation cushion layer can be made of aluminum heat dissipation fins, and the heat insulation cushion layer 432 can be made of heat insulation fiber felt to reduce the heat flow to the end far from the top wall of the housing 410.

[0049] As Figure 3 shown, the lens 620 assembly 600 includes a lamp cup 610, a lens 620, and a hoop 630 that fixedly mounts the lamp cup 610 and the lens 620 in the lamp body housing 400. The lamp cup 610 is frustum-shaped and its narrow end abuts against the mounting plate 430, and its flared end abuts against the hoop 630. Combining Figure 3 shown, the cross-section of the hoop 630 is L-shaped, and a locking groove 631 in the shape of an L is provided on the side wall of the hoop 630. A locking block adapted to the locking groove 631 is provided on the inner side wall of the lamp body housing 400 near the opening. During assembly, the lens 620 is snap-fitted between the lamp cup 610 and the hoop 630. In a specific embodiment, the lens 620 assembly 600 further includes structures such as an anti-glare mesh plate.

[0050] In order to stably mount the lamp cup 610 in the lamp body housing 400 through the interaction of the support ribs 420 and improve the assembly efficiency of the lamp body by setting a guiding surface. The mounting plate 430 is located at the end of the support ribs 420 close to the opening of the housing 410. An installation plate 421 is connected between at least a pair of adjacent support ribs 420 and extends towards the opening of the housing 410 to form a limiting surface 422 for defining the position of the lamp cup 610. An installation guide groove 423 is integrally bent or formed on the installation plate 421 along the axial direction of the housing 410. A positioning and snap-fitting hole 424 is provided at the end of the installation guide groove 423 far from the opening of the housing 410. A positioning and snap-fitting block adapted to the positioning and snap-fitting hole 424 is provided at the narrow end of the lamp cup 610. In practical applications, the number of the above-mentioned installation plates 421 is two and they are oppositely arranged inside the housing 410.

[0051] As Figure 3 and Figure 4 shown, the housing 410 includes a cylindrical outer shell 411 and a cover plate 412 located at one end opening of the cylindrical outer shell 411. Strip-shaped heat dissipation holes 440 are provided on the cover plate 412, and a plurality of buckles 414 are arranged along the circumference of its edge. An annular clamping groove adapted to the buckles 414 is provided at one end port of the cylindrical outer shell 411. After the cylindrical outer shell 411 is fixedly connected to the direction adjustment support rod 300, the cover plate 412 can be used to shield the opening of the cylindrical outer shell 411 to prevent external dust and impurities from entering the interior of the lamp body housing 400. At least one guiding and limiting plate 415 is provided on the side of the edge of the cover plate 412 facing the cylindrical outer shell 411. A guiding groove 416 is opened along the axial direction of the cylindrical outer shell 411 on the guiding and limiting plate 415. An inclined angle is provided at the opening of the guiding groove 416, thereby improving the assembly efficiency between the cover plate 412 and the cylindrical outer shell 411.

[0052] As Figure 4 shown, an L-shaped baffle 417 is provided below the strip-shaped heat dissipation holes 440 on the cover plate 412, and the orthographic projection area of the L-shaped baffle 417 on the cover plate 412 covers the strip-shaped heat dissipation holes 440. The above technical solution can reduce the probability of dust and impurities in the external environment entering the lamp housing 400 without affecting the dissipation of hot air inside the lamp housing 400.

[0053] The working principle and beneficial effects of the solution of this application are as follows:

[0054] The heat generated during the operation of the light source assembly 500 will be conducted to the heat dissipation cushion layer and the support rib plate 420, and then the heat will be dissipated through the heat dissipation characteristics of the heat dissipation cushion layer and the heat dissipation surface of the support rib plate 420 itself. At the same time, by setting a thermal expansion structure at a specific position on the support rib plate 420, it can be ensured that after the heat is conducted to the support rib plate 420, its expansion direction is along the set direction, improving the thermal shock resistance of the entire lamp housing 400 and the support rib plate 420, and ensuring that the relative position of the light source assembly 500 will not shift due to thermal expansion and contraction, so as not to affect the lighting effect of the track spotlight.

[0055] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An efficient heat-dissipating and impact-resistant track spotlight, comprising a track head (100), a power supply box (200), a direction-adjusting support rod (300), and a lamp body housing (400) rotatably connected thereto. A light source assembly (500) and a lens (620) assembly (600) are arranged inside the lamp body housing (400), and it is characterized in that, the lamp body housing (400) includes a cup-shaped housing (410). Along the circumferential direction of the inner wall of the housing (410), a plurality of supporting rib plates (420) are integrally arranged. Inside the area surrounded by the plurality of supporting rib plates (420), a mounting plate (430) for mounting the light source assembly (500) is fixedly connected. A locking screw hole (431) is arranged on the mounting plate (430); on the plurality of supporting rib plates (420), there are heat-dissipating surfaces and / or thermal expansion structures that convert heat into their own deformation; on the side of the mounting plate (430) facing the top wall of the housing (410), a heat-dissipating cushion layer is arranged. On the side of the mounting plate (430) facing the opening of the housing (410), a heat-insulating cushion layer (432) is arranged. Heat-dissipating holes (440) are opened on the top wall and side walls of the housing (410) far from the opening; the light source assembly (500) is mounted on the mounting plate (430), and the lens (620) assembly (600) is located between the mounting plate (430) and the opening of the lamp body housing (400).

2. The efficient heat dissipation and impact-resistant track spotlight according to claim 1, wherein the lens (620) assembly (600) includes a lamp cup (610), a lens (620), and a hoop (630) for fixedly mounting the lamp cup (610) and the lens (620) in the lamp body housing (400); the lamp cup (610) is frustum-shaped and its narrow end abuts against the mounting plate (430), and its flared end abuts against the hoop (630); the cross-section of the hoop (630) is L-shaped. A locking groove (631) in the shape of an L is opened on the side wall of the hoop (630). On the inner side wall of the lamp body housing (400) near the opening position, a locking block adapted to the locking groove (631) is arranged; the lens (620) is clamped between the lamp cup (610) and the hoop (630).

3. The efficient heat dissipation and impact-resistant track spotlight according to claim 2, wherein the mounting plate (430) is located at the end of the supporting rib plates (420) close to the opening of the housing (410). Between at least a pair of adjacent supporting rib plates (420), a mounting plate (421) is connected and extends towards the opening direction of the housing (410) to form a limiting surface (422) for defining the position of the lamp cup (610). On the mounting plate (421), an installation guide groove (423) is integrally bent or opened along the axial direction of the housing (410). At the end of the installation guide groove (423) far from the opening of the housing (410), a positioning and clamping hole (424) is arranged; at the narrow end of the lamp cup (610), a positioning and clamping block adapted to the positioning and clamping hole (424) is arranged.

4. The efficient heat dissipation and impact-resistant track spotlight according to claim 1, wherein the housing (410) includes a cylindrical outer shell (411) and a cover plate (412) located at one end opening of the cylindrical outer shell (411); The cover plate (412) is provided with strip-shaped heat dissipation holes (440), and a plurality of buckles (414) are arranged along the circumference of its edge. An annular clamping groove adapted to the buckles (414) is arranged at one end port of the cylindrical outer shell (411).

5. The efficient heat dissipation and impact-resistant track spotlight according to claim 4, characterized in that, At least one guiding and limiting plate (415) is arranged on one side of the edge of the cover plate (412) facing the cylindrical outer shell (411). A guiding groove (416) is axially formed in the guiding and limiting plate (415) along the cylindrical outer shell (411), and an inclined angle is arranged at the opening of the guiding groove (416).

6. The efficient heat dissipation and impact-resistant track spotlight according to claim 4, wherein An L-shaped baffle (417) is arranged below the strip-shaped heat dissipation holes (440) on the cover plate (412), and the orthographic projection area of the L-shaped baffle (417) on the cover plate (412) covers the strip-shaped heat dissipation holes (440).

7. The efficient heat dissipation and impact resistant track spotlight according to claim 1, characterized in that, The thermal expansion structure includes heat dissipation grooves (425) and / or serrated heat dissipation protrusions which are alternately arranged at intervals along the length direction of the section of the support rib away from the mounting disc (430).

8. The high-efficiency heat dissipation and impact-resistant track spotlight according to claim 1, wherein The support rib plate (420) is arranged along the axial direction of the lamp body housing (400), and a guiding inclined surface (426) is arranged at one end close to the opening of the lamp body housing (400).

9. The efficient heat dissipation and impact-resistant track spotlight according to claim 1, wherein The light source assembly (500) includes a light source substrate and light-emitting wafers arranged on the light source substrate. A heat-conducting member is arranged between the light source substrate, the heat dissipation cushion layer and the mounting disc (430).

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