Public art garden landscape planning light-emitting device

Abstract

The invention relates to the technical field of landscape lighting, and discloses a public art garden landscape planning light-emitting device which comprises a landscape lighting device, the landscape lighting device comprises a lamp holder, a shell is installed on the lamp holder, and two sets of lamps used for alternate lighting are arranged in the shell; and the switching unit comprises an overturning plate arranged in the shell, an L-shaped connecting plate is arranged on the overturning plate, and the two connecting faces of the L-shaped connecting plate are connected with the two sets of lamps correspondingly. The switching unit is adopted to control the two sets of lamps to alternately illuminate, intelligent regulation and control over the working state of the light sources are achieved, the overheating risk caused by long-time continuous working of a single set of light sources is avoided, light attenuation of the light sources is effectively delayed, and the service life of the lamps is prolonged; manual intervention switching is not needed, the maintenance frequency and cost are greatly reduced, and long-term stable operation of the device is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of landscape lighting, more particularly, it relates to a public art garden landscape planning light emitting device. BACKGROUND

[0002] The public art garden landscape planning lighting device is a cross-disciplinary system integrating lighting engineering, environmental art design, material science and intelligent control technology, and the core goal is to realize the night narrative reconstruction of the garden space through light environment design. It not only needs to use precise light parameters to shape the night aesthetic level of sculptures, plants and water scenes to convey regional cultural symbols, but also needs to meet the functional requirements of 8 to 12 hours of continuous operation outdoors to ensure the safety redundancy of path guidance, emergency evacuation and other safety redundancy, and also needs to adapt to the complex working conditions of high temperature, high humidity and dust.

[0003] The current industry has strict requirements for the light source stability of such devices. For example, for the mainstream high-power LED light source, the color temperature difference needs to be maintained within ±200K for 3000K to 5000K in the whole life cycle, and the brightness retention rate needs to be not less than 90% after 10000 hours of cumulative work. However, the existing technology generally uses a single group of light sources for continuous work, which has a systematic defect that is difficult to avoid.

[0004] The existing device adopts a sealed metal shell, so that the heat generated by the light source during work is difficult to be discharged through natural convection, forming a heat accumulation effect. After 4 hours of continuous operation outdoors, the junction temperature of the light source easily breaks through the critical failure threshold of 60℃. On the one hand, for every 10℃ increase in junction temperature, the theoretical service life of the LED light source is shortened by about 50%, and the actual service life is only one third of the designed service life, and it also causes the fluorescence powder to be thermally quenched, the encapsulation glue to be deformed, the brightness decay rate to increase, the color temperature to deviate by more than ±300K, and the light spot to be distorted, which destroys the landscape aesthetic expression. On the other hand, high temperature will accelerate the formation of intermetallic compounds at the interface between the gold wire and the electrode in the light source, and the capacitance value of the electrolytic capacitor in the driving circuit will decay, causing the gold wire to be fused, the current to be unstable, and other faults. The operation and maintenance personnel need to frequently power off and replace the light source, which not only increases the labor and material costs, but also causes local lighting to be missing in the garden due to night shutdown maintenance, affecting the experience of tourists and public safety. SUMMARY

[0005] The present application provides a public art garden landscape planning light emitting device, which solves the technical problem that the heat generated during work is difficult to be discharged through natural convection, forming a heat accumulation effect, and causing the gold wire to be fused, the current to be unstable, and other faults.

[0006] The application provides a public art landscape planning light emitting device, which comprises a landscape lighting device, the landscape lighting device comprises a lamp holder, a shell is installed on the lamp holder, a lamp barrel is installed on the shell, a lens is installed on the lamp barrel, two groups of lamps for alternate lighting are arranged in the shell, and a turning plate is arranged in the shell. A switching unit is arranged in the shell, the turning plate is provided with an L-shaped connecting plate, two connecting surfaces of the L-shaped connecting plate are connected with the two groups of lamps, temperature sensors are arranged on the two connecting surfaces of the L-shaped connecting plate, the temperature sensors are used for detecting the temperature of the lamps, when the lamps are in a high-temperature state for a long time, the turning plate is driven to rotate, and the two groups of lamps are switched to be illuminated.

[0007] As a further optimization scheme of the application, two ends of the turning plate are also provided with contact switches, when the turning plate rotates and drives the contact switches to be in contact with the lamp barrel, it indicates that the lamp switching is completed, and at this time, the motor stops working.

[0008] As a further optimization scheme of the application, support seats are arranged on both sides of the bottom of the turning plate, rollers are rotatably connected to both sides in the support seats through bearings, and the rollers are rotatably connected with the support seats.

[0009] As a further optimization scheme of the application, limit rails are arranged on both sides of the turning plate, track grooves are formed in the limit rails, guide rails are slidably connected in the track grooves, and the guide rails are fixedly connected with the lamp barrel.

[0010] As a further optimization scheme of the application, an arc-shaped rack plate is arranged on one of the limit rails, a gear is meshingly connected with the arc-shaped rack plate, a motor is arranged in the shell, and an output shaft of the motor is fixedly connected with the gear.

[0011] As a further optimization scheme of the application, a heat dissipation unit is arranged on the lamp, the heat dissipation unit comprises a plurality of heat dissipation fins and cooling pipes arranged on the lamp, the heat dissipation fins and the cooling pipes are fixedly connected, the cooling pipes are arranged in an S-shaped structure, one end of the two groups of cooling pipes close to each other is provided with a connecting pipe, the cooling pipes and the connecting pipe are both provided with expansion air bags, and the cooling pipes are provided with gas injection assemblies away from the connecting pipes.

[0012] As a further optimization scheme of the application, limit rings are arranged outside the expansion air bags, and the limit rings are fixedly connected with the inner walls of the cooling pipes and the connecting pipes.

[0013] As a further optimization scheme of the application, the expansion air bags are made of flexible material, and a plurality of wrinkles are arranged outside the expansion air bags.

[0014] As a further optimization scheme of the present application, the gas injection assembly comprises a connector mounted on the cooling pipe away from the adapter pipe, a gas injection pipe is mounted in the connector, and the gas injection pipe is fixedly connected with the expansion air bag, a gas injection cylinder is mounted on the gas injection pipe, a heat conducting plate is mounted on the gas injection cylinder, and a piston member is slidably connected in the heat conducting plate.

[0015] As a further optimization scheme of the present application, the piston member is provided with a memory metal member, one end of the memory metal member is fixedly connected with the heat conducting plate, and the other end of the memory metal member is fixedly connected with the piston member.

[0016] The present application has the beneficial effects that: the present application realizes intelligent control of the working state of the light source by adopting the switching unit to control two groups of lamps to alternately illuminate, the temperature sensor monitors the temperature of the lamps in real time, when a single group of lamps reaches a preset high temperature threshold, the switching unit automatically drives the turnover plate to rotate, switches the overheated lamps to the non-working position for cooling, and at the same time enables the standby lamps, avoids the overheating risk of long-time continuous work of a single group of light sources, effectively delays the light decay of the light source, and prolongs the service life of the lamps; and without manual intervention for switching, the maintenance frequency and cost are greatly reduced, and the long-term stable operation of the device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the three-dimensional cross-sectional structure of the present application; Figure 3 is a schematic diagram of the cross-sectional structure of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of the switching unit of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the switching unit of the present application; Figure 4 is an enlarged view of the structure at A in the switching unit of the present application; Figure 6 is an exploded schematic diagram of the three-dimensional structure of the switching unit of the present application; Figure 7 is a schematic diagram of the three-dimensional structure of the heat dissipation unit of the present application; Figure 8 is a schematic diagram of the local three-dimensional structure of the heat dissipation unit of the present application; Figure 9 is a schematic diagram of the local three-dimensional cross-sectional structure of the heat dissipation unit of the present application; Figure 10 is a schematic diagram of the three-dimensional structure of the heat dissipation unit of the present application; Figure 9 is an enlarged view of the structure at B in the heat dissipation unit of the present application.

[0018] In the figure: 100, landscape lighting device; 110, lamp holder; 120, shell; 130, lamp cylinder; 140, lens; 150, lamp; 200, switching unit; 210, turnover plate; 220, support seat; 230, roller; 240, limiting track; 250, track groove; 260, guide rail; 270, arc-shaped rack plate; 280, gear; 290, motor; 300, temperature sensor; 400, contact switch; 500, heat dissipation unit; 510, heat dissipation fin; 520, cooling pipe; 530, connecting pipe; 540, inflatable air bag; 550, limiting ring; 560, gas injection assembly; 561, connecting head; 562, gas injection pipe; 563, gas injection cylinder; 564, heat conduction plate; 565, piston piece; 566, memory metal piece. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is merely meant to provide a better understanding of the subject matter described herein and can be changed in function and arrangement without departing from the scope of the present disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. Also, features described with respect to some examples can be combined in other examples.

[0020] According to the accompanying Figure 1 to the accompanying Figure 3 The present application provides a public art landscape planning light-emitting device, which comprises a landscape lighting device 100 and a switching unit 200.

[0021] The landscape lighting device 100 comprises a lamp holder 110 for supporting the entire device and can be fixed to the ground or a specific structure. The lamp holder 110 is provided with a shell 120, which plays a protective role for the internal components and provides installation space for the lamp 150. The shell 120 is provided with a lamp cylinder 130, which is a light exit channel, and a lens 140 is installed on the lamp cylinder 130. The lens 140 is used to focus, scatter or guide the light emitted by the lamp 150 to achieve a specific lighting effect. The shell 120 is internally provided with two groups of lamps 150 for alternating lighting. The lamps 150 can be LED lamps or other types of light sources and can work alternately to avoid overheating caused by long-time operation of a single group of lamps 150.

[0022] According to the accompanying Figure 2 to the accompanying Figure 4As shown, the switching unit 200 is the core component to realize the alternate lighting of the lamps 150. The switching unit 200 includes a turnover plate 210 arranged inside the shell 120. The turnover plate 210 is a rotatable structure, and an L-shaped connecting plate is arranged thereon. The L-shaped connecting plate has two mutually perpendicular connecting surfaces, and the two connecting surfaces are connected with two groups of lamps 150 respectively. Specifically, the two groups of lamps 150 are fixed on the two connecting surfaces of the L-shaped connecting plate respectively, so that when the turnover plate 210 rotates, the two groups of lamps 150 also rotate, thereby realizing the switching of lighting.

[0023] In order to realize intelligent switching, according to the accompanying Figure 4 As shown, temperature sensors 300 are also installed on the two connecting surfaces of the L-shaped connecting plate. Each temperature sensor 300 is used to monitor the working temperature of the lamp 150 connected thereto in real time. When one group of lamps 150 is in a working state for a long time, the temperature thereof gradually increases, and when the temperature sensor 300 detects that the temperature of the lamp 150 reaches a preset high-temperature threshold, a signal is sent to the control system.

[0024] After receiving the signal, the control system drives the turnover plate 210 to rotate, so that the high-temperature lamp 150 currently working is turned to a non-working position, and the other group of lamps 150 in a cooling state is turned to a working position, thereby realizing the alternate lighting of the two groups of lamps 150, effectively solving the problem of overheating of the lamps 150 working for a long time, prolonging the service life of the lamps 150, and improving the reliability of the device.

[0025] In a preferred embodiment, according to the accompanying Figure 4 As shown, contact switches 400 are also installed at both ends of the turnover plate 210. When the turnover plate 210 rotates and drives the contact switches 400 to contact the lamp barrel 130, it indicates that the switching of the lamps 150 is completed, and at this time the control motor 290 stops working. The contact switches 400 serve as a kind of limit or position feedback device, which can accurately detect whether the turnover plate 210 has been rotated to the position, ensure that the switching action of the lamps 150 is accurate and reliable, and timely stop the operation of the driving motor 290, thereby avoiding overload or damage.

[0026] According to the accompanying Figure 6 As shown, support seats 220 are arranged at both sides of the bottom of the turnover plate 210. The support seats 220 provide stable support for the turnover plate 210. Rollers 230 are rotatably connected to both sides inside the support seats 220. The rollers 230 are rotatably connected between the support seats 220. When the turnover plate 210 rotates, the rollers 230 roll inside the support seats 220, reducing the frictional resistance, and making the turnover action more stable.

[0027] In order to further guide the rotation path of the turnover plate 210, according to the accompanying Figure 2 , the accompanying Figure 3 and the accompanyingFigure 5 As shown, the two sides of the turnover plate 210 are both mounted with limiting rails 240. The limiting rails 240 are used to limit the lateral movement of the turnover plate 210, ensuring that it rotates along the predetermined path. And the inside of the limiting rails 240 is provided with a rail groove 250. The rail groove 250 provides sliding space for the guide rail 260. The inside of the rail groove 250 is slidingly connected with the guide rail 260, and the guide rail 260 is fixedly connected with the lamp cylinder 130. When the turnover plate 210 rotates, the guide rail 260 slides in the rail groove 250, further ensuring the rotation accuracy and stability of the turnover plate 210, preventing it from deviating during rotation.

[0028] In order to drive the turnover plate 210 to rotate, according to the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 5 , one set of limiting rails 240 is mounted with an arc-shaped rack plate 270. The shape of the arc-shaped rack plate 270 matches the rotation path of the turnover plate 210. And the arc-shaped rack plate 270 is meshingly connected with a gear 280. The gear 280 precisely matches the tooth shape of the arc-shaped rack plate 270, realizing reliable transmission. The inside of the shell 120 is mounted with a motor 290, and the output shaft of the motor 290 is fixedly connected with the gear 280. When the temperature sensor 300 detects that the lamp 150 is overheating, the control system starts the motor 290, and the motor 290 drives the arc-shaped rack plate 270 through the gear 280, thereby driving the turnover plate 210 to rotate, realizing the switching of the lamp 150.

[0029] According to the accompanying drawings Figure 3 , the accompanying drawings Figure 7 and the accompanying drawings Figure 8 , the lamp 150 is provided with a heat dissipation unit 500. The heat dissipation unit 500 includes a plurality of heat dissipation fins 510 and cooling pipes 520 arranged on the lamp 150. The heat dissipation fins 510 can effectively dissipate the heat generated by the lamp 150 to the surrounding environment by increasing the heat dissipation area. The heat dissipation fins 510 and the cooling pipes 520 are fixedly connected, so that the cooling pipes 520 can more effectively absorb the heat conducted by the heat dissipation fins 510. The cooling pipes 520 are arranged in an S-shaped structure, which increases the length of the cooling pipes 520 and the contact area with the lamp 150, thereby improving the heat exchange efficiency. The two groups of cooling pipes 520 are mounted with a connecting pipe 530 at one end close to each other. The connecting pipe 530 is used to connect the two groups of cooling pipes 520 to form a continuous cooling channel. The inside of the cooling pipes 520 and the connecting pipe 530 is provided with an expansion air bag 540. The end of the cooling pipe 520 away from the connecting pipe 530 is provided with a gas injection assembly 560.

[0030] In the present application, the inflatable balloon 540 is used to adjust the effective flow area of the cooling tube 520 by inflating its interior, thereby increasing the flow rate of the cooling liquid. Specifically, when the lamp 150 is working and generating heat, the gas injection assembly 560 fills the inflatable balloon 540 with gas, causing the inflatable balloon 540 to expand and increase in diameter. Since the inflatable balloon 540 is arranged inside the cooling tube 520 and the adapter tube 530, its expansion will squeeze the cooling liquid inside the cooling tube 520 and the adapter tube 530, reducing the flow space of the cooling liquid, thereby forcing the cooling liquid to flow through the cooling tube 520 at a faster speed, taking away the heat generated by the lamp 150, and achieving efficient heat dissipation. When the temperature of the lamp 150 decreases or stops working, the gas injection assembly 560 can discharge the gas, causing the inflatable balloon 540 to contract, and restoring the normal flow rate of the cooling liquid.

[0031] In a preferred embodiment, according to the attached Figure 9 and the attached Figure 10 , the inflatable balloon 540 is provided with a limiting ring 550 on the outside. The limiting ring 550 is fixedly connected to the inner walls of the cooling tube 520 and the adapter tube 530, respectively. The function of the limiting ring 550 is to limit the excessive expansion of the inflatable balloon 540, ensure its operation within a predetermined range, prevent damage to the cooling tube 520 and the adapter tube 530, and ensure the accuracy of the cooling liquid flow rate adjustment.

[0032] In another preferred embodiment, according to the attached Figure 10 , the inflatable balloon 540 is made of a flexible material, and the outside of the inflatable balloon 540 is provided with a plurality of wrinkles. The flexible material and the wrinkle structure make the inflatable balloon 540 have better adaptability when inflating and deflating, and can withstand greater deformation without being easily damaged. At the same time, the wrinkle structure also increases the surface area of the inflatable balloon 540, which is beneficial to heat transfer and deformation.

[0033] According to the attached Figure 9 and the attached Figure 10 , the gas injection assembly 560 includes a connecting head 561 mounted on the end of the cooling tube 520 away from the adapter tube 530. The connecting head 561 is used to reliably connect the gas injection assembly 560 with the cooling tube 520. In operation, the connecting head 561 is connected to an external cooling device, which is used to provide cooling liquid inside the cooling tube 520, so that the internal cooling liquid circulates.

[0034] The inside of the connecting head 561 is provided with a gas injection pipe 562, which is fixedly connected with the inflatable air bag 540. The gas injection pipe 562 is a channel for gas to enter or exit the inflatable air bag 540. The gas injection pipe 562 is provided with a gas injection cylinder 563, which is a main part of the gas injection assembly 560. The gas injection cylinder 563 is provided with a heat conduction plate 564, which is used to transfer heat of the lamp 150 to the gas injection assembly 560. The inside of the heat conduction plate 564 is slidably connected with a piston 565. When the lamp 150 generates heat, the heat is transferred to the medium in the inside of the gas injection cylinder 563 through the heat conduction plate 564, and the medium expands to push the piston 565. The movement of the piston 565 drives the gas injection pipe 562 to inject gas into the inflatable air bag 540, so that the inflatable air bag 540 is inflated, thereby increasing the flow rate of the cooling liquid.

[0035] The piston 565 includes a piston rod and a piston block. The piston rod is slidably connected to the inside of the heat conduction plate 564, and the piston block is used to push the gas in the inside of the gas injection cylinder 563.

[0036] In a more preferred embodiment, the piston 565 is provided with a memory metal piece 566. The memory metal piece 566 can be a memory spring. One end of the memory metal piece 566 is fixedly connected with the heat conduction plate 564, and the other end of the memory metal piece 566 is fixedly connected with the piston 565. The memory metal piece 566 is a material with shape memory effect. When the temperature of the memory metal piece 566 reaches a certain threshold value, the memory metal piece 566 changes phase and restores to a preset shape, thereby generating a shape change force.

[0037] In operation, when the temperature of the lamp 150 increases, heat is transferred to the heat conduction plate 564, and then to the memory metal piece 566. When the memory metal piece 566 reaches the phase change temperature, the memory metal piece 566 changes shape and pushes the piston 565 to move. The movement of the piston 565 drives the gas injection pipe 562 to inject gas into the inflatable air bag 540, so that the inflatable air bag 540 is inflated, thereby automatically increasing the flow rate of the cooling liquid in the cooling pipe 520. This forms a self-adaptive heat dissipation control system without external power supply, and further improves the intelligence and reliability of the heat dissipation unit 500.

[0038] The heat dissipation unit 500 is used to dissipate heat of the lamp 150. When the lamp 150 overheats, the inflatable air bag 540 is inflated to increase the flow rate of the cooling liquid in the cooling pipe 520, so that the lamp 150 is quickly cooled. When the temperature of the lamp 150 cannot be reduced to below the set value of the temperature sensor 300 for a long time, the temperature sensor 300 sends a signal to the control system, and the control system feeds back the signal to the temperature sensor 300 to control two groups of lamps 150 to work alternately.

[0039] The above describes the embodiments of the present embodiment, but the embodiments are not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the embodiments, which all belong to the protection of the embodiments.

Claims

1. A luminous device for public art garden landscape planning, characterized in that, include: A landscape lighting device (100) includes a lamp holder (110), a housing (120) is mounted on the lamp holder (110), and a lamp tube (130) is mounted on the housing (120). Two sets of lamps (150) for alternating lighting are provided inside the housing (120). The switching unit (200) includes a flip plate (210) disposed inside the housing (120), and an L-shaped connecting plate is disposed on the flip plate (210). The two connecting surfaces of the L-shaped connecting plate are respectively connected to two sets of lamps (150). Temperature sensors (300) are also installed on the two connecting surfaces of the L-shaped connecting plate. The temperature sensors (300) are used to detect the temperature of the lamp (150). When the lamp (150) is in a high temperature state for a long time, the flip plate (210) is driven to rotate to switch the lighting of the two sets of lamps (150).

2. The public art garden landscape planning luminous device according to claim 1, characterized in that, The flip plate (210) is also equipped with contact switches (400) at both ends. When the flip plate (210) rotates and drives the contact switch (400) to contact the lamp tube (130), it indicates that the lamp (150) has been switched. At this time, the control motor (290) stops working.

3. A public art garden landscape planning luminous device according to claim 1, characterized in that, The flip plate (210) is provided with support seats (220) on both sides of the bottom, and rollers (230) are rotatably connected to the two sides inside the support seats (220) through bearings. The rollers (230) and the support seats (220) are rotatably connected.

4. A public art garden landscape planning luminous device according to claim 1, characterized in that, Both sides of the flip plate (210) are equipped with limit rails (240), and the limit rails (240) have a rail groove (250) inside. The rail groove (250) is slidably connected to a guide rail (260), and the guide rail (260) is fixedly connected to the lamp tube (130).

5. A public art garden landscape planning luminous device according to claim 4, characterized in that, An arc-shaped rack plate (270) is installed on one of the limiting rails (240), and a gear (280) is meshed on the arc-shaped rack plate (270). A motor (290) is installed inside the housing (120), and the output shaft of the motor (290) is fixedly connected to the gear (280).

6. A public art garden landscape planning luminous device according to claim 1, characterized in that, The lamp (150) is provided with a heat dissipation unit (500), which includes a plurality of heat dissipation fins (510) and cooling pipes (520) disposed on the lamp (150). The heat dissipation fins (510) and the cooling pipes (520) are fixedly connected. The cooling pipes (520) are arranged in an S-shaped structure. A connecting pipe (530) is installed at one end of the two sets of cooling pipes (520) that are close to each other. An expansion air bladder (540) is provided inside the cooling pipes (520) and the connecting pipes (530). An air injection component (560) is provided at one end of the cooling pipes (520) away from the connecting pipes (530).

7. A public art garden landscape planning luminous device according to claim 6, characterized in that, The inflatable airbag (540) is provided with a limiting ring (550) on its outside, and the limiting ring (550) is fixedly connected to the inner wall of the cooling pipe (520) and the connecting pipe (530) respectively.

8. A public art garden landscape planning luminous device according to claim 6, characterized in that, The inflatable airbag (540) is made of flexible material, and the exterior of the inflatable airbag (540) has several folds.

9. A public art garden landscape planning luminous device according to claim 6, characterized in that, The air injection assembly (560) includes a connector (561) installed at the end of the cooling pipe (520) away from the connecting pipe (530). An air injection pipe (562) is installed inside the connector (561), and the air injection pipe (562) is fixedly connected to the expansion air bag (540). An air injection cylinder (563) is installed on the air injection pipe (562), and a heat-conducting plate (564) is installed on the air injection cylinder (563). A piston (565) is slidably connected inside the heat-conducting plate (564).

10. A public art garden landscape planning luminous device according to claim 9, characterized in that, The piston (565) is provided with a shape memory metal part (566) on its exterior. One end of the shape memory metal part (566) is fixedly connected to the heat conduction plate (564), and the other end of the shape memory metal part (566) is fixedly connected to the piston (565).

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