Long-service-life high-altitude down-lighting type lighting lamp

Abstract

The utility model provides a long-service-life high-altitude down-lighting type lighting lamp. Comprising a shell, a lamp panel, an LED chip and a light-transmitting assembly. The lamp panel comprises a main board and a plurality of wiring assemblies, the main board is arranged on the shell, each wiring assembly comprises a positive wiring bonding pad and a negative wiring bonding pad, each positive wiring bonding pad and each negative wiring bonding pad are welded to the main board, the main board is used for being electrically connected with the control assembly, the LED chip is arranged on the main board and electrically connected with the main board, and the control assembly is electrically connected with the LED chip. And the light-transmitting assembly is rotationally connected with the shell, and the light-transmitting assembly is arranged towards the light-emitting surface of the LED chip. According to the long-service-life high-altitude down-lighting type lighting lamp, the multiple sets of wiring assemblies are arranged on the lamp panel, each wiring assembly is a power supply circuit, when any circuit of the long-service-life high-altitude down-lighting type lighting lamp is unavailable, other circuits can normally supply power to the lamp panel, and therefore the long-service-life high-altitude down-lighting type lighting lamp can continue to be used normally; and therefore, the service life of the long-service-life high-altitude down-lighting type lighting lamp is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of lighting, in particular to a long-life high-altitude downlighting lighting fixture. Background Art

[0002] With the continuous progress and development of the lighting field, people's requirements for the use experience of lighting fixtures are constantly increasing. At present, the high-altitude downlights on the market are basically down-lighting lamps, which cannot realize the function of arbitrary light adjustment, especially in the environment with direct sunlight at high altitude. Direct sunlight will cause the surface temperature of the lamp to rise, especially in high temperature seasons or hot climates. Continuous heat and temperature changes will accelerate the aging and damage of lamp components. In addition, the ultraviolet rays and light in the sun will expose the lamp housing and components to ultraviolet rays, causing the housing material to become brittle, fade or deform, and damage to electronic components. Therefore, in an environment with direct sunlight at high altitude, the service life of the lamp is a great test. The high-altitude downlights on the market cannot be used in this environment for a long time, the light decay is serious, and the later maintenance cost is high.

[0003] To this end, the Chinese patent with patent number CN204986558U proposes an LED high-altitude lighting downlight lamp structure, which includes an LED photoelectric thermal integration module, a fixed face ring installed on the LED photoelectric thermal integration module, and a reflective cup installed on the fixed face ring. Because this technical solution adopts three modules of LED photoelectric thermal integration module, fixed face ring installed on the LED photoelectric thermal integration module, and reflective cup installed on the fixed face ring to form the entire product. In actual installation and use, the user can replace any module or a combination of modules in the three modules according to actual needs, so that the face ring color, reflective cup color, different power of the light source module, luminous angle and irradiation direction can be adjusted according to customer needs, and ceiling lamps of different thicknesses can be used, which is convenient for customers to use. The fixed face ring color, reflective cup color, different power of the light source module, luminous angle, irradiation direction and installation ceilings of different thicknesses can be adjusted according to customer needs.

[0004] Although the technical solution of the above patent can be well adapted to different user needs, it also has the following problems: the lamp board of its LED high-altitude lighting downlight is a single-line, and the lamps working at high altitudes need to have high-power output and the working environment of the lamps is harsh. The lamp board relying only on a single line is easily damaged, resulting in a shortened lamp life, and the maintenance of high-altitude lamps is more difficult and the maintenance cost is higher.

[0005] Therefore, there is an urgent need for a long-life high-altitude downlighting lighting fixture. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a long-life high-altitude downlighting lighting fixture.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A long-life high-altitude downlighting lighting fixture, comprising:

[0009] case;

[0010] A lamp board, the lamp board comprising a main board and a plurality of wiring components, the main board being arranged on the housing, each of the wiring components comprising a positive wiring pad and a negative wiring pad, each of the positive wiring pad and each of the negative wiring pads being welded on the main board, and the main board being used to be electrically connected to the control component;

[0011] An LED chip, wherein the LED chip is disposed on the mainboard and is electrically connected to the mainboard;

[0012] A light-transmitting component is rotatably connected to the shell, and the light-transmitting component is arranged toward the light-emitting surface of the LED chip.

[0013] In one embodiment, the number of the wiring assemblies is two groups, namely, a first wiring assembly and a second wiring assembly, the first wiring assembly includes a first positive wiring pad and a first negative wiring pad, the second wiring assembly includes a second positive wiring pad and a second negative wiring pad, the first positive wiring pad and the first negative wiring pad are both welded on one side of the mainboard, and the second positive wiring pad and the second negative wiring pad are both welded on the other side of the mainboard;

[0014] The first positive electrode connection pad, the first negative electrode connection pad, the second positive electrode connection pad and the second negative electrode connection pad are all used for welding to an external power line.

[0015] In one embodiment, the shell includes a heat dissipation shell, a heat dissipation fin group and a heat dissipation connecting column, one end of the heat dissipation fin group is fixedly connected to the inner wall of the heat dissipation shell, the heat dissipation connecting column is arranged in the heat dissipation shell, and the heat dissipation connecting column is fixedly connected to the other end of the heat dissipation fin group.

[0016] In one embodiment, the heat dissipation fin group includes a plurality of heat dissipation fins, one end of the plurality of heat dissipation fins is fixedly connected along the periphery of the inner side wall of the heat dissipation housing, and the other end of the plurality of heat dissipation fins is fixedly connected along the periphery of the heat dissipation connection column;

[0017] The heat dissipation connection column is provided with interconnected heat dissipation through holes and embedding cavities;

[0018] The long-life high-altitude downlighting lighting fixture also includes a heat-conducting block, which is embedded in the embedding cavity.

[0019] In one embodiment, the shell also includes a chip fixing plate, the chip fixing plate is screwed to the heat dissipation connecting column, the chip fixing plate and the heat dissipation connecting column form a limiting ring cavity, the chip fixing plate is provided with a light-transmitting hole connected to the limiting ring cavity, the lamp board is embedded in the limiting ring cavity, the LED chip is embedded in the center of the light board, and the light-emitting surface of the LED chip is arranged toward the light-transmitting hole.

[0020] In one embodiment, the housing further comprises a heat dissipation cover plate, the heat dissipation cover plate is disposed on one end of the heat dissipation housing, and a plurality of heat dissipation openings are formed on the heat dissipation cover plate;

[0021] The peripheral side wall of the heat dissipation shell is provided with a plurality of heat dissipation ring openings.

[0022] In one embodiment, the shell is an aluminum shell; and the heat conductive block is a copper block.

[0023] In one embodiment, the shell further includes a first gasket, a second gasket and a rotating ring; the first gasket is screwed to the bottom of the heat dissipation fin group, the outer ring of the first gasket abuts against the inner side wall periphery of the heat dissipation shell, the first gasket and the bottom of the heat dissipation fin group together form a limited rotation ring cavity, the second gasket is arranged in the limited rotation ring cavity, one side of the second gasket abuts against the bottom of the heat dissipation fin group, the rotating ring is arranged in the limited rotation ring cavity, one side of the rotating ring abuts against the other side of the second gasket, the outer ring periphery of the rotating ring abuts against the bottom of the heat dissipation fin assembly, and the other side of the rotating ring abuts against the first gasket.

[0024] In one of the embodiments, the rotating ring is provided with a plurality of first connecting blocks;

[0025] The light-transmitting component includes a rotating part and a prism part. The rotating part is movably connected to the plurality of first connecting blocks respectively. The rotating part is provided with a light-emitting groove, and the light-emitting groove is located directly below the light-transmitting hole. The inner side wall periphery of the light-emitting groove is provided with a plurality of limiting abutment blocks. The prism part is arranged in the light-emitting groove, and the bottom of the prism part is respectively abutted against the plurality of limiting abutment blocks so that the prism part is limitedly connected in the rotating part.

[0026] In one of the embodiments, the long-life high-altitude downward lighting fixture further includes a lampshade, which is arranged at the other end of the heat dissipation shell and is sleeved on the periphery of the rotating part.

[0027] Compared with the prior art, the utility model has at least the following advantages:

[0028] 1. By setting up several groups of wiring components on the lamp board, each positive wiring pad and each negative wiring pad are welded on the main board, and each positive welding pad and each negative welding pad are welded to the external power line. hour, Each wiring assembly is a power supply line, and each power supply line operates independently and does not interfere with each other. When any line in the lighting fixture is unavailable, other power supply lines can supply power to the lamp board normally, ensuring that the LED chip can emit light normally, so that the lighting fixture can continue to be used normally. This can extend the service life of the lighting fixture and reduce the number of maintenance times of long-life high-altitude downward lighting fixtures.

[0029] 2. The control component can be used to individually control the luminous power of each power supply circuit in the lighting fixture, that is, when the sunlight directly shines on the lighting fixture in a high-altitude environment, the power of each power supply circuit can be adjusted to reduce the heating of the lamp board and LED chip. This can extend the service life of the lamp board and LED chip, thereby effectively extending the service life of the lighting fixture and reducing the number of maintenance times of the lighting fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the structure of a long-life high-altitude downlighting lighting fixture in one embodiment;

[0032] Figure 2 for Figure 1 The schematic diagram of the cross-sectional structure of the long-life high-altitude downlighting lighting fixture shown;

[0033] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown;

[0034] Figure 4 for Figure 2 An enlarged schematic diagram of point B is shown;

[0035] Figure 5 for Figure 1 The schematic diagram of the structure of the lamp board and LED chip in the long-life high-altitude downlighting lighting fixture shown;

[0036] Figure 6 for Figure 1 The schematic diagram of the structure of the long-life high-altitude downlighting lighting fixture from another perspective is shown;

[0037] Figure 7 for Figure 6 An enlarged schematic diagram of point C is shown. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] See also Figures 1 to 7 In order to better understand the long-life high-altitude downlighting lighting fixture 10 disclosed in the present invention, the following further explanation is given:

[0042] The long-life high-altitude downlighting lighting fixture 10 of one embodiment includes a housing 100, a lamp board 200, an LED chip 300, and a light-transmitting component 400. The lamp board 200 includes a main board 210 and a plurality of wiring components 220. The main board 210 is arranged on the housing 100. Each wiring component 220 includes a positive wiring pad 2210 and a negative wiring pad 2220. Each positive wiring pad 2210 and each negative wiring pad 2220 are welded on the main board 210. The main board 210 is used to be electrically connected to the control component. The LED chip 300 is arranged on the main board 210. The LED chip 300 is electrically connected to the main board 210. The light-transmitting component 400 is rotatably connected to the housing 100. The light-transmitting component 400 is arranged toward the light-emitting surface of the LED chip 300.

[0043] In this embodiment, by arranging a main board 210 and several groups of wiring components 220 on the lamp board 200, the main board 210 is arranged on the housing 100, and each wiring component 220 includes a positive wiring pad 2210 and a negative wiring pad 2220, and each positive wiring pad 2210 and each negative wiring pad 2220 are welded on the main board 210, so that the lighting fixture 10 can have multiple lines for providing power. The structure of the lamp board 200 with multiple power supply lines can ensure that when one of the lines is damaged and unavailable, the other power supply lines can still work normally, so that the lighting fixture 10 can still work normally, thereby extending the service life of the lighting fixture 10.

[0044] It is understandable that since the lighting fixture 10 outputs high power in a high-altitude environment, and direct exposure to sunlight will intensify the heating of the lamp board 200 and the LED chip 300, the luminous power of each power supply circuit in the lighting fixture 10 can be individually controlled through the control component, that is, when sunlight directly shines on the lighting fixture 10 in a high-altitude environment, the power of each power supply circuit can be adjusted to reduce the heating of the lamp board 200 and the LED chip 300. This can extend the service life of the lamp board 200 and the LED chip 300, thereby effectively extending the service life of the lighting fixture 10 and reducing the number of maintenance times of the lighting fixture 10.

[0045] It should be noted that the present disclosure only protects the electrical connection relationship between each component and the control component. The control method of the control component to control the luminous power of each power supply circuit in the lighting fixture 10 belongs to the prior art and is not within the protection scope of the present disclosure.

[0046] like Figure 5As shown, in one embodiment, the number of wiring assemblies 220 is two groups, namely, a first wiring assembly 220a and a second wiring assembly 220b, the first wiring assembly 220a includes a first positive wiring pad 2210a and a first negative wiring pad 2220a, the second wiring assembly 220b includes a second positive wiring pad 2210b and a second negative wiring pad 2220b, the first positive wiring pad 2210a and the first negative wiring pad 2220a are both welded to one side of the main board 210, and the second positive wiring pad 2210b and the second negative wiring pad 2220b are both welded to the other side of the main board 210. The first positive wiring pad 2210a, the first negative wiring pad 2220a, the second positive wiring pad 2210b and the second negative wiring pad 2220b are all used for welding with an external power line. It can be understood that by setting the first wiring assembly 220a and the second wiring assembly 220b, the first wiring assembly 220a includes the first positive wiring pad 2210a and the first negative wiring pad 2220a, and the second wiring assembly 220b includes the second positive wiring pad 2210a and the second negative wiring pad 2220b, so that there are two circuits in the lamp board 200 of the lighting fixture 10, so that when any one of the circuits is damaged, the other circuit can still normally provide power to the lamp board 200 to make the LED chip 300 emit light, thereby extending the service life of the lighting fixture 10 and reducing the number of maintenance times of the lighting fixture 10.

[0047] It should be noted that the connection method of the light board 200 and the LED chip 300 adopts a high-density two-way COB (chip on board packaging), and the LED chip 300 is attached to the light board 200 by using an adhesive.

[0048] Furthermore, the provision of two power supply lines can undoubtedly increase the output power of the lighting fixture 10. The luminous power of the two power supply lines in the lighting fixture 10 can be individually controlled through the control component, so that the luminous efficiency of the lighting fixture 10 can reach up to 130lm / W in actual use. In this way, the lighting fixture 10 can provide efficient and sufficient light source for lighting in a high-altitude use environment.

[0049] Furthermore, when sunlight directly shines on the lighting fixture 10 in a high-altitude environment, the output power of the two power supply lines can be balanced and adjusted to reduce the heat generation of the lamp board 200 and the LED chip 300. This can extend the service life of the lamp board 200 and the LED chip 300, thereby effectively extending the service life of the lighting fixture 10 and reducing the number of maintenance times of the lighting fixture 10.

[0050] like Figure 2As shown, in one embodiment, the shell 100 includes a heat dissipation shell 110, a heat dissipation fin group 120 and a heat dissipation connecting column 130, one end of the heat dissipation fin group 120 is fixedly connected to the inner wall of the heat dissipation shell 110, the heat dissipation connecting column 130 is disposed in the heat dissipation shell 110, and the heat dissipation connecting column 130 is fixedly connected to the other end of the heat dissipation fin group 120. It can be understood that when sunlight directly shines on the lighting fixture 10 in a high-altitude environment, arranging a heat dissipation shell 110, a heat dissipation fin group 120 and a heat dissipation connecting column 130 in the shell 100 can enable the lighting fixture 10 to have better heat dissipation performance. The heat dissipation fin group 120 is respectively connected to the heat dissipation shell 110 and the heat dissipation connecting column 130, and can better conduct the heat on the heat dissipation connecting column 130 to the heat dissipation fin group 120 and the heat dissipation shell 110, thereby reducing the heat generation of the lamp board and the LED chip. This can extend the service life of the lamp board 200 and the LED chip 300, thereby effectively extending the service life of the lighting fixture 10 and reducing the number of maintenance times of the lighting fixture 10.

[0051] like Figure 2 As shown, in one embodiment, the heat sink fin group 120 includes a plurality of heat sink fins 1210, one end of the plurality of heat sink fins 1210 is fixedly connected along the inner side wall periphery of the heat sink housing 110, and the other end of the plurality of heat sink fins 1210 is fixedly connected along the periphery of the heat sink connection column 130. The heat sink connection column 130 is provided with interconnected heat sink through holes 1301 and an embedded cavity 1302. The long-life high-altitude downlighting lighting fixture 10 also includes a heat conductive block 500, which is embedded in the embedded cavity 1302. It can be understood that by providing a heat conductive block 500, the heat conductive block 500 is used to abut the lamp board 200, so that when the lighting fixture 10 is working, the heat generated by the lamp board 200 can be absorbed and conducted to the shell 100. The provision of a plurality of heat dissipation fins 1210 can effectively increase the heat dissipation surface area of ​​the lighting fixture 10, and the heat dissipation through holes 1301 can directly dissipate the heat in the heat conductive block 500 to the air in the shell 100, so that the air in the shell 100 is higher than the outside temperature. The higher temperature air flows outward, allowing the lower temperature air to flow into the shell 100, thereby forming a heat convection structure, which can further ensure the heat dissipation performance of the lighting fixture 10 and extend the service life of the lighting fixture 10.

[0052] like Figure 2 and Figure 3As shown, in one embodiment, the shell 100 also includes a chip fixing plate 140, the chip fixing plate 140 is screwed to the heat dissipation connecting column 130, the chip fixing plate 140 and the heat dissipation connecting column 130 form a limiting ring cavity 1401, the chip fixing plate 140 is provided with a light-transmitting hole 1402 connected to the limiting ring cavity 1401, the lamp board 200 is embedded in the limiting ring cavity 1401, the LED chip 300 is embedded in the center of the lamp board 200, and the light-emitting surface of the LED chip 300 is arranged toward the light-transmitting hole 1402. It should be noted that the chip fixing plate 140 is screwed to the heat dissipation connecting column 130. Specifically, the chip fixing plate 140 and the heat dissipation connecting column 130 are connected in series and locked by a plurality of bolts, so that the heat conductive block 500 can fully contact the lamp board 200, and the heat generated by the lamp board 200 during operation can be more effectively conducted to the heat conductive block 500. The heat conductive block 500 then conducts the heat to the shell 100 and the air so that the heat is fully dissipated, thereby extending the service life of the lighting fixture 10.

[0053] like Figure 1 As shown, in one embodiment, the housing 100 further includes a heat dissipation cover plate 150, which is covered at one end of the heat dissipation housing 110, and a plurality of heat dissipation openings 1501 are provided on the heat dissipation cover plate 150. A plurality of heat dissipation ring openings 1101 are provided on the peripheral side wall of the heat dissipation housing 110. It can be understood that by providing a plurality of heat dissipation openings 1501 on the heat dissipation cover plate 150 and a plurality of heat dissipation ring openings 1101 on the peripheral side wall of the heat dissipation housing 110, the heat in the housing 100 can be directly dissipated into the air, and the higher temperature air flows outward so that the lower temperature air flows into the housing 100, thereby forming a heat convection structure, which can further ensure the heat dissipation performance of the lighting fixture 10 and extend the service life of the lighting fixture 10.

[0054] like Figure 2 As shown, in one embodiment, the housing 100 is an aluminum housing, and the heat-conducting block 500 is a copper block. It should be noted that, in this embodiment, the production of the housing 100 and the heat-conducting block 500 adopts the process of drawing aluminum and inlaying pure copper. During the process of drawing aluminum and inlaying pure copper, the aluminum block is extruded into the housing 100 through a mold, so that the manufactured housing 100 has good structural stability, and the pure copper material is embedded in the extruded housing 100 to form the heat-conducting block 500. It can be understood that the thermal conductivity of aluminum is relatively high, and the thermal conductivity of copper is higher than that of aluminum, but the price of copper is expensive. In the lighting fixture 10, only copper is used for the heat-conducting block, so that the cost can be controlled in a low range while ensuring that the lighting fixture 10 has good heat dissipation performance, which can further extend the service life of the lighting fixture 10.

[0055] like Figure 4As shown, in one embodiment, the shell 100 also includes a first gasket 160, a second gasket 170 and a rotating ring 180; the first gasket 160 is screwed to the bottom of the heat dissipation fin group 120, the outer ring of the first gasket 160 abuts against the inner wall periphery of the heat dissipation shell 110, the first gasket 160 and the bottom of the heat dissipation fin group 120 together form a limited rotation ring cavity 1601, the second gasket 170 is arranged in the limited rotation ring cavity 1601, one side of the second gasket 170 abuts against the bottom of the heat dissipation fin group 120, the rotating ring 180 is arranged in the limited rotation ring cavity 1601, one side of the rotating ring 180 abuts against the other side of the second gasket 170, the outer ring periphery of the rotating ring 180 abuts against the bottom of the heat dissipation fin group 120, and the other side of the rotating ring 180 abuts against the first gasket 160. It should be noted that the first gasket 160 is screwed to the bottom of the heat sink fin group 120. Specifically, the first gasket 160 and the heat sink fin group 120 are connected in series and locked by a plurality of bolts, so that the first gasket 160, the second gasket 170 and the rotating ring 180 are locked and fixed in the shell 100, so that the rotating ring 180 is limited between the first gasket 160 and the second gasket 170, and the horizontal rotation of the rotating ring 180 is not affected.

[0056] like Figure 2 , Figure 6 and Figure 7As shown, in one embodiment, the rotating ring 180 is provided with a plurality of first connecting blocks 1810, the light-transmitting component 400 includes a rotating member 410 and a prism member 420, the rotating member 410 is movably connected to the plurality of first connecting blocks 1810 respectively, the rotating member 410 is provided with a light-emitting groove 4101, the light-emitting groove 4101 is located directly below the light-transmitting hole 1402, a plurality of limiting abutment blocks 4110 are provided on the periphery of the inner side wall of the light-emitting groove 4101, the prism member 420 is arranged in the light-emitting groove 4101, and the bottom of the prism member 420 is respectively abutted against the plurality of limiting abutment blocks 4110, so that the prism member 420 is limitedly connected in the rotating member 410. It is understandable that vertical rotation can be achieved by movably connecting the rotating member 410 with the plurality of first connecting blocks 1810, and horizontal rotation can be achieved by the rotating ring 180. During the installation and debugging process, the illumination angle of the lighting fixture 10 can be 360° horizontally and 25° vertically, so as to better control the direction and range of the light emitted by the lighting fixture 10, and make the light source of the lighting fixture 10 more concentrated and directional. It should be noted that the light-transmitting component 400 adopts micro-prism optical technology, that is, groove structures are provided at both ends of the prism member 420, so that the light emitted by the LED chip 300 can be reflected by the prism member 420 and evenly distributed in the illumination area, without reflection loss in the process, and the light source provided by the lighting fixture 10 can achieve low UGR (uniform glare value), so that the light spot of the long-life high-altitude downlighting lighting fixture 10 is soft, thereby effectively improving the visual comfort of the lighting fixture 10.

[0057] like Figure 1 and Figure 6 As shown, in one embodiment, the long-life high-altitude downlighting lighting fixture 10 further includes a lampshade 600, which is disposed at the other end of the heat dissipation housing 110, and the lampshade 600 is sleeved on the periphery of the rotating member 410. It can be understood that the lampshade 600 sleeved on the periphery of the rotating member 410 can limit the rotating member 410, so as to prevent the rotating member 410 from rotating too much and causing part of the light source to be blocked by the heat dissipation housing 110, and the lampshade 600 can effectively prevent external factors from affecting the interior of the lighting fixture 10, thereby providing a protective effect for the internal electronic components of the lighting fixture 10.

[0058] Compared with the prior art, the utility model has at least the following advantages:

[0059] 1. By setting up several groups of wiring components on the lamp board, each positive wiring pad and each negative wiring pad are welded on the main board, and each positive welding pad and each negative welding pad are welded to the external power line. hour,Each wiring assembly is a power supply line, and each power supply line operates independently and does not interfere with each other. When any line in the lighting fixture is unavailable, other power supply lines can supply power to the lamp board normally, ensuring that the LED chip can emit light normally, so that the lighting fixture can continue to be used normally. This can extend the service life of the lighting fixture and reduce the number of maintenance times of long-life high-altitude downward lighting fixtures.

[0060] 2. The control component can be used to individually control the luminous power of each power supply circuit in the lighting fixture, that is, when the sunlight directly shines on the lighting fixture in a high-altitude environment, the power of each power supply circuit can be adjusted to reduce the heating of the lamp board and LED chip. This can extend the service life of the lamp board and LED chip, thereby effectively extending the service life of the lighting fixture and reducing the number of maintenance times of the lighting fixture.

[0061] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A long-life high-altitude downlighting lighting fixture, characterized in that: include: case; A lamp board, the lamp board comprising a main board and a plurality of wiring components, the main board being arranged on the housing, each of the wiring components comprising a positive wiring pad and a negative wiring pad, each of the positive wiring pad and each of the negative wiring pads being welded on the main board, and the main board being used to be electrically connected to the control component; An LED chip, wherein the LED chip is disposed on the mainboard and is electrically connected to the mainboard; A light-transmitting component is rotatably connected to the shell, and the light-transmitting component is arranged toward the light-emitting surface of the LED chip.

2. The long-life high-altitude downlighting lighting fixture according to claim 1 is characterized in that: The number of the wiring assemblies is two groups, namely a first wiring assembly and a second wiring assembly, the first wiring assembly includes a first positive wiring pad and a first negative wiring pad, the second wiring assembly includes a second positive wiring pad and a second negative wiring pad, the first positive wiring pad and the first negative wiring pad are both welded on one side of the mainboard, and the second positive wiring pad and the second negative wiring pad are both welded on the other side of the mainboard; The first positive electrode connection pad, the first negative electrode connection pad, the second positive electrode connection pad and the second negative electrode connection pad are all used for welding to an external power line.

3. The long-life high-altitude downlighting lighting fixture according to claim 2 is characterized in that: The shell includes a heat dissipation shell, a heat dissipation fin group and a heat dissipation connecting column, one end of the heat dissipation fin group is fixedly connected to the inner wall of the heat dissipation shell, the heat dissipation connecting column is arranged in the heat dissipation shell, and the heat dissipation connecting column is fixedly connected to the other end of the heat dissipation fin group.

4. The long-life high-altitude downlighting lighting fixture according to claim 3 is characterized in that: The heat dissipation fin group includes a plurality of heat dissipation fins, one end of the plurality of heat dissipation fins is fixedly connected along the periphery of the inner side wall of the heat dissipation housing, and the other end of the plurality of heat dissipation fins is fixedly connected along the periphery of the heat dissipation connection column; The heat dissipation connection column is provided with interconnected heat dissipation through holes and embedding cavities; The long-life high-altitude downlighting lighting fixture also includes a heat-conducting block, which is embedded in the embedding cavity.

5. The long-life high-altitude downlighting lighting fixture according to claim 4 is characterized in that: The shell also includes a chip fixing plate, which is screwed to the heat dissipation connecting column, and the chip fixing plate and the heat dissipation connecting column form a limiting ring cavity. The chip fixing plate is provided with a light-transmitting hole connected to the limiting ring cavity. The lamp board is embedded in the limiting ring cavity, and the LED chip is embedded in the center of the lamp board, and the light-emitting surface of the LED chip is arranged toward the light-transmitting hole.

6. The long-life high-altitude downlighting lighting fixture according to claim 5 is characterized in that: The housing further comprises a heat dissipation cover plate, which is disposed on one end of the heat dissipation housing and has a plurality of heat dissipation openings; The peripheral side wall of the heat dissipation shell is provided with a plurality of heat dissipation ring openings.

7. The long-life high-altitude downlighting lighting fixture according to claim 6 is characterized in that: The shell is an aluminum shell; the heat conducting block is a copper block.

8. The long-life high-altitude downlighting lighting fixture according to claim 7 is characterized in that: The shell also includes a first gasket, a second gasket and a rotating ring; the first gasket is screwed to the bottom of the heat dissipation fin group, the outer ring of the first gasket abuts against the inner side wall periphery of the heat dissipation shell, the first gasket and the bottom of the heat dissipation fin group together form a limited rotation ring cavity, the second gasket is arranged in the limited rotation ring cavity, one side of the second gasket abuts against the bottom of the heat dissipation fin group, the rotating ring is arranged in the limited rotation ring cavity, one side of the rotating ring abuts against the other side of the second gasket, the outer ring periphery of the rotating ring abuts against the bottom of the heat dissipation fin assembly, and the other side of the rotating ring abuts against the first gasket.

9. The long-life high-altitude downlighting lighting fixture according to claim 8, characterized in that: The rotating ring is provided with a plurality of first connecting blocks; The light-transmitting component includes a rotating part and a prism part. The rotating part is movably connected to the plurality of first connecting blocks respectively. The rotating part is provided with a light-emitting groove, and the light-emitting groove is located directly below the light-transmitting hole. The inner side wall periphery of the light-emitting groove is provided with a plurality of limiting abutment blocks. The prism part is arranged in the light-emitting groove, and the bottom of the prism part is respectively abutted against the plurality of limiting abutment blocks so that the prism part is limitedly connected in the rotating part.

10. The long-life high-altitude downlighting lighting fixture according to claim 9, characterized in that: The long-life high-altitude downward lighting fixture also includes a lampshade, which is arranged at the other end of the heat dissipation shell and is sleeved on the periphery of the rotating part.

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