Energy-saving street lamp with adaptive power dissipation

Abstract

This invention discloses an energy-saving street light with adaptive power heat dissipation, comprising a lamp housing, a pusher frame slidably disposed within the lamp housing, a push rod, an LED module, and a cooling unit disposed within the lamp housing; the output end of the push rod is connected to the pusher frame; the pusher frame is connected to the LED module to allow the LED module to switch between low-power and high-power states; the cooling unit includes a cold water tank, a cooling frame surrounding the outer periphery of the LED module, a cooling ring pipe surrounding the outer periphery of the cooling frame, and a cooling pipe connected within the cooling frame; the cooling ring pipe is connected to the cooling water tank; both ends of the cooling pipe are connected to the cooling ring pipe; both ends of the cooling pipe are equipped with normally closed valves to keep the cooling pipe in a blocked state; the LED module is equipped with a pusher component, which opens the normally closed valves when the LED module switches to a high-power state, making the cooling pipe open; this achieves adaptive matching of power and heat dissipation, effectively reducing street light energy consumption, resulting in greater energy savings and high structural reliability.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to an energy-saving street light with adaptive power heat dissipation. Background Technology

[0002] In existing urban lighting systems, traditional streetlights generally adopt a fixed lighting mode and lack dynamic adjustment capabilities. Specifically, traditional streetlights provide illumination at a fixed power during the night. However, in our daily lives, there are usually many people walking, running, and traveling outdoors between 7 pm and 10 pm, so there is a need for brighter lighting during this period. After this period, the number of people outdoors decreases significantly, and if fixed power lighting is still used at this time, it will lead to energy waste.

[0003] To address this, existing solutions utilize time-based control to switch streetlights between high and low power to meet varying lighting needs. However, their heat dissipation remains constant, failing to match the streetlight's operating state, leading to reduced reliability and, while potentially more energy-efficient, relatively poor energy-saving performance. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide an energy-saving street light with adaptive power heat dissipation, which realizes adaptive matching between power and heat dissipation, so as to effectively reduce the energy consumption of the street light and has high structural reliability.

[0005] To achieve the above objectives, the specific solution of the present invention is as follows: an energy-saving street light with adaptive power heat dissipation, comprising a lamp housing, a pusher frame slidably disposed in the lamp housing, and a push rod, an LED module, and a cooling unit disposed within the lamp housing; the output end of the push rod is connected to the pusher frame; the pusher frame is connected to the LED module to enable the LED module to switch between a low-power state and a high-power state;

[0006] The cooling unit includes a cold water tank, a cooling frame surrounding the LED module, a cooling ring pipe surrounding the outer periphery of the cooling frame, and a cooling pipe connected inside the cooling frame; the cooling ring pipe is connected to the cooling water tank; both ends of the cooling pipe are connected to the cooling ring pipe; both ends of the cooling pipe are equipped with normally closed valves to keep the cooling pipe in a blocked state.

[0007] The LED module is equipped with a pusher. When the LED module switches to high power mode, the pusher opens the normally closed valve, so that the cooling pipe is in a conductive state.

[0008] Optionally, the LED module includes a mounting substrate, a first light-emitting unit disposed on the bottom surface of the mounting substrate, a mounting frame disposed on the top surface of the mounting substrate, and a second light-emitting unit slidably disposed within the mounting frame; both ends of the second light-emitting unit are provided with pushers.

[0009] The pusher is connected to the second light-emitting unit so that the second light-emitting unit can switch between a horizontally extended state and a horizontally retracted state; when the second light-emitting unit is in the horizontally extended state, the LED module is in a high-power state.

[0010] Optionally, the mounting substrate has a through hole for accommodating the second light-emitting unit, the position of which is offset from that of the first light-emitting unit; the cooling pipe is located below the through hole;

[0011] The mounting frame has a first guide groove and a second guide groove on both sides; the second light-emitting unit has a pin that is movably embedded in the first guide groove and a first connecting rod on the pin at both ends; one end of the first connecting rod has a first locking pin that is connected to the push frame, and the other end has a second locking pin that is slidably embedded in the second guide groove; a tension spring is provided between the first locking pin and the second locking pin.

[0012] Optionally, the first guide groove includes a first horizontal section and a second inclined section connected to one end of the first horizontal section, and the second guide groove includes a second horizontal section and a second inclined section connected to one end of the second horizontal section;

[0013] The second horizontal segment is located above the first horizontal segment. The distance between the projections of the first inclined segment and the second inclined segment on the side of the mounting frame gradually decreases along the inclined direction and is less than the distance between the first horizontal segment and the second horizontal segment in the vertical direction. The projections of the endpoints of the first inclined segment away from the first horizontal segment and the endpoints of the second inclined segment away from the second horizontal segment on the side of the mounting frame are on the same vertical line.

[0014] Optionally, the bottom surface of the mounting substrate is provided with three spaced-apart first light-emitting units, and the mounting substrate is provided with through holes between two adjacent first light-emitting units. A second light-emitting unit is slidably provided in the mounting frame corresponding to the position of each through hole. The first pins at the same end of the two second light-emitting units are connected to the same second connecting rod. The opposite sides of the mounting frame are provided with a first guide groove and a second guide groove corresponding to each second light-emitting unit.

[0015] The second connecting rod is provided with a third locking pin, and the push frame is provided with a sliding hole extending in the vertical direction, and the third locking pin is movably embedded in the sliding hole;

[0016] Two cooling pipes are installed inside the cooling frame, each corresponding to one of the two through holes.

[0017] Optionally, the two opposite side walls of the mounting frame are provided with peripheral arms, and the second guide groove is provided on the inner side of the peripheral arms.

[0018] Optionally, the second light-emitting unit includes a lamp holder and an LED lamp assembly disposed on the lamp holder; both ends of the lamp holder are provided with protruding pins; a first conductive electrode electrically connected to the LED lamp assembly is provided through the pins and the first locking pin; the outer arm of the mounting frame is provided with a second conductive electrode at the position corresponding to the second inclined section, and the shape of the second conductive electrode is the same as the trajectory of the first guide groove.

[0019] Optionally, a heat-conducting element is provided on the outer wall of the cooling pipe, and the heat-conducting element contacts the first and second light-emitting units when the second light-emitting unit is in a horizontally extended state.

[0020] Optionally, heat dissipation fins are provided on the outer wall of the cold water tank.

[0021] Optionally, the cooling pipe includes a first pipe body, both ends of which are connected to a connecting shaft, and the connecting shaft is connected to a second pipe body. The first pipe body has a cavity, and the first pipe body has multiple first connecting holes evenly distributed around the axis at both ends of the cavity. The second pipe body is provided with multiple second connecting holes evenly distributed around the axis.

[0022] The normally closed valve includes a valve body and a torsion spring. The valve body is rotatably sleeved on the connecting shaft. The two ends of the valve body are respectively sealed to the first pipe and the second pipe. The valve body is provided with multiple third connecting holes evenly distributed around the axis. The torsion spring is located at one end of the valve body near the second pipe. The two ends of the torsion spring are respectively connected to the valve body and the second pipe. The outer wall of the valve body is provided with a toggle part. The pusher pushes the valve body to rotate against the elastic force of the torsion spring through the toggle part, so that the first connecting hole, the second connecting hole and the third connecting hole correspond one-to-one.

[0023] The beneficial effects of this invention are as follows: By setting the LED module to switch between high and low power states, the invention simultaneously controls the opening and closing state of the normally closed valve through the push component, thereby controlling the on and off state of the cooling pipe, and thus achieving adaptive matching of power and heat dissipation, effectively reducing street light energy consumption, making it more energy-efficient, and with high structural reliability. Attached Figure Description

[0024] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0025] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0026] Figure 3 This is a partial structural schematic diagram of the second light-emitting unit of the present invention when it is in a horizontally extended state;

[0027] Figure 4 yes Figure 3 A magnified view of a portion of point B in the middle;

[0028] Figure 5This is a partial structural schematic diagram from another perspective when the second light-emitting unit of the present invention is in a horizontally extended state;

[0029] Figure 6 This is a partial structural schematic diagram of the second light-emitting unit of the present invention in a horizontally stowed state;

[0030] Figure 7 This is a schematic diagram of the cooling unit of the present invention;

[0031] Figure 8 yes Figure 7 A magnified view of a portion of point C in the middle;

[0032] Figure 9 This is a cross-sectional schematic diagram of the cooling unit of the present invention;

[0033] Figure 10 yes Figure 9 A magnified view of a portion of point D in the middle;

[0034] Figure 11 This is a schematic diagram of the cooling pipe structure of the present invention;

[0035] Figure 12 This is a cross-sectional schematic diagram of the normally closed valve of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of the second light-emitting unit of the present invention;

[0037] Figure 14 yes Figure 13 A magnified view of a portion of point E in the middle;

[0038] Figure 15 This is a schematic diagram of the mounting frame of the present invention;

[0039] Figure 16 This is a front view of the mounting frame of the present invention;

[0040] Explanation of reference numerals in the attached drawings: 1. Lamp housing; 2. Push frame; 21. Sliding hole; 3. Push rod; 41. Mounting base; 411. Through hole; 42. First light-emitting unit; 43. Mounting frame; 431. Outer arm; 432. First horizontal section; 433. First inclined section; 434. Second horizontal section; 435. Second inclined section; 436. Second conductive electrode; 44. Second light-emitting unit; 441. Lamp holder; 4411. Pin; 4412. First connecting rod; 4413. First locking pin; 4414. Second locking pin; 4415. Pull rod. 4416, First conductive electrode; 442, LED light assembly; 443, Pushing component; 45, Second connecting rod; 451, Third locking pin; 51, Cold water tank; 52, Cooling frame; 53, Cooling ring pipe; 54, Cooling pipe; 541, First pipe body; 5411, First connecting hole; 542, Connecting shaft; 543, Second pipe body; 5431, Second connecting hole; 55, Normally closed valve; 551, Valve body; 5511, Third connecting hole; 5512, Actuating part; 552, Torsion spring; 56, Heat-conducting component; 6, Controller. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the invention to this.

[0042] like Figures 1 to 16 As shown in this embodiment, an energy-saving street light with adaptive power heat dissipation includes a lamp housing 1, a pusher frame 2 that is slidably installed inside the lamp housing 1, and a push rod 3, an LED module, and a cooling unit installed inside the lamp housing 1; the output end of the push rod 3 is connected to the pusher frame 2; the pusher frame 2 is connected to the LED module to enable the LED module to switch between a low-power state and a high-power state; it also includes a controller 6 for controlling the operation of the push rod 3, the controller 6 controlling the operation of the push rod 3 according to a preset time requirement;

[0043] The cooling unit includes a cold water tank 51, a cooling frame 52 surrounding the LED module, a cooling ring pipe 53 surrounding the outer periphery of the cooling frame 52, and a cooling pipe 54 connected within the cooling frame 52. The cooling ring pipe 53 is connected to the cooling water tank. The cold water tank 51 is pre-filled with coolant. Both ends of the cooling pipe 54 are connected to the cooling ring pipe 53. Both ends of the cooling pipe 54 are equipped with normally closed valves 55 to keep the cooling pipe 54 in a blocked state. The LED module is equipped with a pusher 443. When the LED module switches to a high-power state, the pusher 443 opens the normally closed valves 55, making the cooling pipe 54 open. In this embodiment, the pusher frame 2 has a U-shaped structure, and the pusher 443 has an L-shaped structure.

[0044] Specifically, in the first time period of the adaptive power heat dissipation energy-saving street light of this embodiment, the first time period can be set according to the actual application location and application area, such as setting the first time period to 7 pm to 10 pm; the push rod 3 drives the push frame 2 to slide, and the push frame 2 causes the LED module to switch to a high power state to provide higher brightness or different lighting effects. At this time, the pusher 443 opens the normally closed valve 55, and conducts the cooling pipe 54. At this time, the cold water tank 51 pumps the coolant into the cooling ring pipe 53. A part of the coolant in the cooling ring pipe 53 enters the cooling pipe 54 and flows back to the cooling ring pipe 53 through the cooling pipe 54. Another part of the coolant flows back to the cold water tank 51 along the cooling ring pipe 53. At this time, coolant flows in both the cooling ring pipe 53 and the cooling pipe 54, thereby carrying away the heat generated by the LED module to achieve the purpose of efficient heat dissipation.

[0045] During the second time period, the time period can be set according to the actual application location and region, such as setting the second time period to 10 pm to 6 am; the push rod 3 drives the push frame 2 to move in the opposite direction, so that the LED module switches to a low power state. At this time, the push component 443 releases the control of the normally closed valve 55, and the normally closed valve 55 returns to the normally closed state, thereby blocking the cooling pipe 54. At this time, the coolant will not flow through the cooling pipe 54, and the coolant circulates along the cooling ring pipe 53, thereby dissipating heat from the LED module to match the heat dissipation requirements under low power state.

[0046] In this embodiment, the opening and closing state of the normally closed valve 55 is controlled simultaneously by the pusher 443 during the switching of high and low power states of the LED module, thereby controlling the on and off state of the cooling pipe 54. This achieves adaptive matching between power and heat dissipation, effectively reducing street light energy consumption, making it more energy-efficient, and with high structural reliability.

[0047] like Figures 1 to 6 As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, the LED module includes a mounting substrate 41, a first light-emitting unit 42 disposed on the bottom surface of the mounting substrate 41, a mounting frame 43 disposed on the top surface of the mounting substrate 41, and a second light-emitting unit 44 slidably disposed within the mounting frame 43; both ends of the second light-emitting unit 44 are provided with pushers 443; the pusher 2 is connected to the second light-emitting unit 44 to switch the second light-emitting unit 44 between a horizontally extended state and a horizontally retracted state; when the second light-emitting unit 44 is in the horizontally extended state, the LED module is in a high-power state.

[0048] In this embodiment, the mounting substrate 41 is made of a material with good thermal conductivity, such as aluminum or aluminum alloy, which can increase the heat dissipation area of ​​the LED module to dissipate the heat generated by the LED module and ensure the stability of the LED module's operation. In this embodiment, the cooling frame 52 is disposed on the bottom surface of the mounting substrate 41.

[0049] Specifically, during the first time period, push rod 3 drives push frame 2 to slide, and push frame 2 drives second light-emitting unit 44 to slide, causing second light-emitting unit 44 to switch from a horizontally retracted state to a horizontally extended state, such as... Figure 3 and Figure 5 As shown, at this time, the first light-emitting unit 42 and the second light-emitting unit 44 work together, that is, the LED module is in a high-power state, thereby providing a higher brightness lighting effect to meet the lighting brightness requirements of the first time period. At this time, the LED module generates more heat, so the normally closed valve 55 is opened by the pusher 443, so that the cooling pipe 54 is connected, and the coolant flows in the cooling ring pipe 53 and the cooling pipe 54, improving the heat dissipation efficiency and timely removing the heat generated by the first light-emitting unit 42 and the second light-emitting unit 44.

[0050] During the second time period, push rod 3 drives push frame 2 to slide in the opposite direction, and push frame 2 drives second light-emitting unit 44 to slide in the opposite direction, so that second light-emitting unit 44 switches from a horizontally extended state to a horizontally retracted state, as shown. Figure 6 As shown, at this time, the second light-emitting unit 44 is not working, and only the first light-emitting unit 42 provides illumination, that is, the LED module is in a low-power state. Since only the first light-emitting unit 42 is working, the heat generated is relatively small. Therefore, the cooling pipe 54 is blocked by the normally closed valve 55, so that the coolant flows only along the cooling ring pipe 53.

[0051] like Figures 1 to 6 As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, the mounting base 41 is provided with a through hole 411 for accommodating the second light-emitting unit 44, and the position of the through hole 411 is offset from the position of the first light-emitting unit 42; the cooling pipe 54 is located below the through hole 411; the mounting frame 43 is provided with a first guide groove and a second guide groove on opposite sides; both ends of the second light-emitting unit 44 are provided with a pin 4411 that is movably embedded in the first guide groove and a first connecting rod 4412 provided on the pin 4411; one end of the first connecting rod 4412 is provided with a first locking pin 4413 connected to the push frame 2, and the other end is provided with a second locking pin 4414 that is slidably embedded in the second guide groove; a tension spring 4415 is provided between the first locking pin 4413 and the second locking pin 4414. The mounting frame 43 is generally U-shaped. In this embodiment, the first connecting rod 4412 and the pin 4411 are sleeved together.

[0052] Specifically, such as Figure 15 and Figure 16 As shown, the first guide groove includes a first horizontal section 432 and a second inclined section 435 connected to one end of the first horizontal section 432. The second guide groove includes a second horizontal section 434 and a second inclined section 435 connected to one end of the second horizontal section 434. The second horizontal section 434 is located above the first horizontal section 432. The distance between the projections of the first inclined section 433 and the second inclined section 435 on the side of the mounting frame 43 gradually decreases along the inclined direction and is less than the distance between the first horizontal section 432 and the second horizontal section 434 in the vertical direction. The projections of the endpoint of the first inclined section 433 away from the first horizontal section 432 and the endpoint of the second inclined section 435 away from the second horizontal section 434 on the side of the mounting frame 43 are on the same vertical line.

[0053] During the second time period, push rod 3 causes push frame 2 to slide. Push frame 2 drives second light-emitting unit 44 to move via first locking pin 4413. With the cooperation of second locking pin 4414, tension spring 4415, pin 4411, first guide groove and second guide groove, second light-emitting unit 44 is housed above mounting base plate 41. That is, second locking pin 4414 is located in second horizontal section 434, and pin 4411 is located in first horizontal section 432. At this time, second light-emitting unit 44 is in a horizontally housed state. Figure 6 As shown, only the first light-emitting unit 42 is in the illumination state, that is, the LED module is in a low power state;

[0054] During the first time period, the pusher 2 causes the second light-emitting unit 44 to move via the first locking pin 4413. The second locking pin 4414 moves along the second horizontal section 434 toward the second inclined section 435, and the pin 4411 moves along the first horizontal section 432 toward the first inclined section 433. Under the action of the pin 4411 entering the first inclined section 433, the second locking pin 4414 entering the second inclined section 435, and the tension of the tension spring 4415, the second light-emitting unit 44 tilts and wobbles in the same direction as the inclination direction of the second inclined section 435. As the pin 4411 moves along the first inclined section 433, the second locking pin 4414 moves along the second inclined section 435, and the second light-emitting unit... The second light-emitting unit 44 is inserted obliquely into the corresponding through hole 411. Since the projections of the endpoints of the first oblique segment 433 away from the first horizontal segment 432 and the endpoints of the second oblique segment 435 away from the second horizontal segment 434 on the side of the mounting frame 43 are on the same vertical line, the second locking pin 4414 first reaches the endpoint of the second oblique segment 435. At this time, the second light-emitting unit 44 uses the second locking pin 4414 as a fulcrum, and the pin shaft 4411 continues to move along the first oblique segment 433, causing the second light-emitting unit 44 to swing from the oblique state to the horizontal state. At this time, the second light-emitting unit 44 completely penetrates the corresponding through hole 411 and is located below the mounting substrate 41. The second light-emitting unit 44 is in a horizontally extended state, as shown. Figure 3 and Figure 5 As shown, both the first light-emitting unit 42 and the second light-emitting unit 44 are working to provide illumination, and the LED module switches to a high-power state.

[0055] like Figures 3 to 7 , Figure 15 and Figure 16 As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, three spaced-apart first light-emitting units 42 are mounted on the bottom surface of the mounting base 41. The mounting base 41 has through holes 411 between adjacent first light-emitting units 42. A second light-emitting unit 44 is slidably mounted in the mounting frame 43 corresponding to the position of each through hole 411. The first locking pin 4413 at the same end of the two second light-emitting units 44 is connected to the same second connecting rod 45. The mounting frame 43 has a first guide groove and a second guide groove on opposite sides corresponding to each second light-emitting unit 44. The second connecting rod 45 has a protruding third locking pin 451. The push frame 2 has a sliding hole 21 extending vertically through it. The third locking pin 451 is movably embedded in the sliding hole 21. Two cooling pipes 54 are respectively arranged in the cooling frame 52 corresponding to the positions of the two through holes 411. This embodiment provides sufficient lighting when illumination is required by setting up multiple first light-emitting units 42 and multiple second light-emitting units 44. Through two cooling pipes 54, the light-emitting units are cooled and cooled in time when the first light-emitting units 42 and the second light-emitting units 44 are working at the same time.

[0056] Specifically, during the second time period, each of the second light-emitting units 44 is housed above the mounting substrate 41, and is illuminated by each of the first light-emitting units 42. During the first time period, the pusher 2 pushes the second link 45 to move through the third locking pin 451. The second link 45 drives the second light-emitting unit 44 to move through the first locking pin 4413, so that the second light-emitting unit 44 switches from a horizontally housed state to a horizontally extended state. When the second locking pin 4414 enters the second inclined section 435 and the pin 4411 enters the first inclined section 433, the third locking pin 451 moves in the sliding hole 21 to adapt to the height change of the second light-emitting unit 44 until the second light-emitting unit 44 switches to the horizontally extended state.

[0057] like Figure 15 As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, the mounting frame 43 has peripheral arms 431 on both opposite side walls, and the second guide groove is located on the inner side of the peripheral arms 431. This embodiment uses peripheral arms 431 to facilitate the placement of the second guide groove and the installation of the second connecting rod 45.

[0058] like Figure 3 , Figure 5 , Figure 6 , Figures 13 to 16 As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, the second light-emitting unit 44 includes a lamp holder 441 and an LED lamp group 442 mounted on the lamp holder 441; the number of LED lamp groups 442 can be set to multiple, and multiple LED lamp groups 442 are arranged side by side along the length direction of the lamp holder 441. Both ends of the lamp holder 441 are provided with protruding pins 4411; a first conductive electrode 4416 electrically connected to the LED lamp group 442 is provided through the pins 4411 and the first locking pin 4413; the outer arm 431 of the mounting frame 43 is embedded with a second conductive electrode 436 at the position corresponding to the second inclined section 435. The shape of the second conductive electrode 436 is the same as the trajectory of the first guide groove, so that the first conductive electrode 4416 can maintain electrical contact and conduction with the second conductive electrode 436 during the movement of the pins 4411 along the trajectory of the first inclined section 433.

[0059] In this embodiment, by setting up a lamp holder 441 to facilitate the installation of the LED lamp group 442 and the setting of the pin 4411, when the pin 4411 moves into the first inclined section 433, the first conductive electrode 4416 inside the pin 4411 contacts and conducts with the second conductive electrode 436 on the outer arm 431, thereby realizing the power supply connection of the second light-emitting unit 44, so that the second light-emitting unit 44 is powered on and works when it is in the horizontal extended state, and is de-energized and idle when it is in the horizontal retracted state.

[0060] like Figure 2 , Figure 3 , Figure 5 , Figures 6 to 10 As shown in this embodiment, in some embodiments of the energy-saving street light with adaptive power heat dissipation, a heat-conducting element 56 is sleeved on the outer wall of the cooling pipe 54. When the second light-emitting unit 44 is in a horizontally extended state, the heat-conducting element 56 contacts the first light-emitting unit 42 and the second light-emitting unit 44. In this embodiment, the heat-conducting element 56 can promptly conduct away the heat from the first light-emitting unit 42 and / or the second light-emitting unit 44, further improving the heat dissipation effect.

[0061] like Figure 3 , Figure 6 and Figure 7 As shown in this embodiment, the energy-saving street light with adaptive power cooling has heat dissipation fins on the outer wall of the cold water tank 51 in some embodiments. In this embodiment, the heat dissipation fins are used to cool the coolant flowing back into the cold water tank 51, thereby ensuring the cooling effect of the coolant.

[0062] like Figures 7 to 12As shown, in some embodiments of the energy-saving street light with adaptive power heat dissipation described in this embodiment, the cooling pipe 54 includes a first pipe body 541, both ends of the first pipe body 541 are connected to a connecting shaft 542, the connecting shaft 542 is connected to a second pipe body 543, a cavity is provided inside the first pipe body 541, and a plurality of first connecting holes 5411411 are provided at both ends of the first pipe body 541 around the axis, and a plurality of second connecting holes 5431411 are provided through the second pipe body 543.

[0063] The normally closed valve 55 includes a valve body 551 and a torsion spring 552. The valve body 551 is rotatably sleeved on the connecting shaft 542. The two ends of the valve body 551 are respectively sealed and sleeved with the first pipe body 541 and the second pipe body 543. The valve body 551 is provided with a plurality of third connecting holes 5511411 evenly distributed around the axis. The torsion spring 552 is provided at one end of the valve body 551 near the second pipe body 543. A receiving groove is opened on the valve body 551, and the torsion spring 552 is placed in the receiving groove to ensure a reliable sealing fit between the valve body 551 and the second pipe body 543, and the structure is more compact. The two ends of the torsion spring 552 are respectively connected to the valve body 551 and the second pipe body 543. The outer wall of the valve body 551 is provided with a toggle part 5512. The pusher 443 pushes the valve body 551 to rotate against the elastic force of the torsion spring 552 through the toggle part 5512, so that the first connecting hole, the second connecting hole 5431411 and the third connecting hole correspond one-to-one.

[0064] Specifically, under the torque of the torsion spring 552, the third connecting hole 5511411 of the valve body 551 is offset from the first connecting hole 5411411 of the first tube 541 and the second connecting hole 5431411 of the second tube 543, thus making the first tube 541 and the second tube 543 not connected, that is, the cooling pipe 54 is in a blocked state. When the second light-emitting unit 44 switches to the horizontal extension state, the pusher 443 drives the valve body 551 to overcome the torque of the torsion spring 552 relative to the first tube 54 through the actuating part 5512 during the movement. 1. The rotation of the first and second tubes 543 causes the third connecting hole 5511411 on the valve body 551 to correspond one-to-one with the first connecting hole 5411411 of the first tube 541 and the second connecting hole 5431411 of the second tube 543, so that the first tube 541 and the second tube 543 are connected through the valve body 551, that is, the cooling pipe 54 is in a conductive state. At this time, the coolant in the cooling ring pipe 53 can flow through the cooling pipe 54, thereby dissipating heat from the first light-emitting unit 42 and the second light-emitting unit 44, and meeting the heat dissipation requirements of high-power lighting.

[0065] When the second light-emitting unit 44 switches from the horizontally extended state back to the horizontally retracted state, the pusher 443 gradually releases the pressure on the toggle part 5512. At this time, the valve body 551 is reset under the torque of the torsion spring 552, thereby switching the connection between the first tube 541 and the second tube 543.

[0066] A cavity is provided inside the first tube 541 so that more coolant can enter the first tube 541, thereby improving the heat dissipation effect.

[0067] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included within the protection scope of this patent application.

Claims

1. An energy-saving street light with adaptive power heat dissipation, characterized in that, It includes a lamp housing, a pusher frame that slides on the lamp housing, and a push rod, LED module, and cooling unit disposed inside the lamp housing; the output end of the push rod is connected to the pusher frame; the pusher frame is connected to the LED module to enable the LED module to switch between low power and high power states; The cooling unit includes a cold water tank, a cooling frame surrounding the LED module, a cooling ring pipe surrounding the outer periphery of the cooling frame, and a cooling pipe connected inside the cooling frame; the cooling ring pipe is connected to the cooling water tank; both ends of the cooling pipe are connected to the cooling ring pipe; both ends of the cooling pipe are equipped with normally closed valves to keep the cooling pipe in a blocked state. The LED module is equipped with a pusher that opens the normally closed valve when the LED module switches to high power mode, thus opening the cooling pipe. The LED module includes a mounting substrate, a first light-emitting unit disposed on the bottom surface of the mounting substrate, a mounting frame disposed on the top surface of the mounting substrate, and a second light-emitting unit slidably disposed within the mounting frame; both ends of the second light-emitting unit are provided with pushers. The pusher is connected to the second light-emitting unit to switch between a horizontally extended state and a horizontally retracted state; when the second light-emitting unit is in the horizontally extended state, the LED module is in a high-power state. The cooling pipe includes a first pipe body, with connecting shafts at both ends of the first pipe body. The connecting shafts are connected to a second pipe body. The first pipe body has a cavity inside. The first pipe body has multiple first connecting holes evenly distributed around the axis at both ends of the cavity. The second pipe body has multiple second connecting holes evenly distributed around the axis through it. The normally closed valve includes a valve body and a torsion spring. The valve body is rotatably sleeved on the connecting shaft. The two ends of the valve body are respectively sealed to the first pipe and the second pipe. The valve body is provided with multiple third connecting holes evenly distributed around the axis. The torsion spring is located at one end of the valve body near the second pipe. The two ends of the torsion spring are respectively connected to the valve body and the second pipe. The outer wall of the valve body is provided with a toggle part. The pusher pushes the valve body to rotate against the elastic force of the torsion spring through the toggle part, so that the first connecting hole, the second connecting hole and the third connecting hole correspond one-to-one.

2. The energy-saving street light with adaptive power heat dissipation according to claim 1, characterized in that, The mounting substrate has a through hole for accommodating the second light-emitting unit, and the position of the through hole is offset from the position of the first light-emitting unit; the cooling pipe is located below the through hole; The mounting frame has a first guide groove and a second guide groove on both sides; the second light-emitting unit has a pin that is movably embedded in the first guide groove and a first connecting rod on the pin at both ends; one end of the first connecting rod has a first locking pin that is connected to the push frame, and the other end has a second locking pin that is slidably embedded in the second guide groove; a tension spring is provided between the first locking pin and the second locking pin.

3. The energy-saving street light with adaptive power heat dissipation according to claim 2, characterized in that, The first guide groove includes a first horizontal section and a second inclined section connected to one end of the first horizontal section; the second guide groove includes a second horizontal section and a second inclined section connected to one end of the second horizontal section. The second horizontal segment is located above the first horizontal segment. The distance between the projections of the first inclined segment and the second inclined segment on the side of the mounting frame gradually decreases along the inclined direction and is less than the distance between the first horizontal segment and the second horizontal segment in the vertical direction. The projections of the endpoints of the first inclined segment away from the first horizontal segment and the endpoints of the second inclined segment away from the second horizontal segment on the side of the mounting frame are on the same vertical line.

4. An energy-saving street light with adaptive power heat dissipation according to claim 3, characterized in that, The bottom surface of the mounting substrate is provided with three spaced-apart first light-emitting units. The mounting substrate is provided with through holes between two adjacent first light-emitting units. A second light-emitting unit is slidably provided in the mounting frame corresponding to the position of each through hole. The first pins at the same end of the two second light-emitting units are connected to the same second connecting rod. The opposite sides of the mounting frame are provided with a first guide groove and a second guide groove corresponding to each second light-emitting unit. The second connecting rod is provided with a third locking pin, and the push frame is provided with a sliding hole extending in the vertical direction, and the third locking pin is movably embedded in the sliding hole; Two cooling pipes are installed inside the cooling frame, each corresponding to one of the two through holes.

5. An energy-saving street light with adaptive power heat dissipation according to claim 1, characterized in that, The mounting frame has outer arms on both opposite side walls, and the second guide groove is located on the inner side of the outer arms.

6. An energy-saving street light with adaptive power heat dissipation according to claim 5, characterized in that, The second light-emitting unit includes a lamp holder and an LED lamp assembly disposed on the lamp holder; both ends of the lamp holder are provided with protruding pins; a first conductive electrode electrically connected to the LED lamp assembly is provided through the pins and the first locking pin; a second conductive electrode is embedded in the outer arm of the mounting frame at the position corresponding to the second inclined section, and the shape of the second conductive electrode is the same as the trajectory of the first guide groove.

7. An energy-saving street light with adaptive power heat dissipation according to claim 1, characterized in that, The outer wall of the cooling pipe is fitted with a heat-conducting component, which contacts the first and second light-emitting units when the second light-emitting unit is in a horizontally extended state.

8. An energy-saving street light with adaptive power heat dissipation according to claim 1, characterized in that, The outer wall of the cold water tank is equipped with heat dissipation fins.

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