An efficient heat dissipation device for LED lighting fixtures

Abstract

The present invention discloses an efficient heat dissipation device for LED lighting fixtures, belonging to the technical field of LED lighting fixtures. It includes a circular bottom plate, on which a square frame is fixedly installed. Through the mutual cooperation of the unfolding component one, the unfolding component two, the driving component one, and the driving component two, the heat dissipation impellers can be distributed over a larger area, thereby effectively increasing the air flow rate around the lamp board, and thus improving the heat dissipation efficiency. When the heat dissipation requirement is small, the unfolding side plate one, the unfolding side plate two, the square frame plate one, and the square frame plate two can be folded together, making the entire device structure compact and convenient for storage. It can also, according to the change of temperature, successively unfold the unfolding components, so as to intelligently adjust the heat dissipation requirement, which can greatly reduce energy consumption, improve the energy utilization efficiency, and achieve significant energy-saving effects.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lighting fixtures, and particularly to a heat dissipation device for an efficient LED lighting fixture. Background Art

[0002] During the operation of LED fixtures, a large amount of heat is generated. If the heat cannot be dissipated in time, it will cause the temperature of the LED fixtures to rise, thereby affecting their service life and lighting effect. Traditional heat dissipation devices for LED lighting fixtures usually adopt fixed heat dissipation structures with limited heat dissipation area and low heat dissipation efficiency, making it difficult to meet the heat dissipation requirements of high-power LED fixtures. At the same time, when the heat dissipation demand is small, these heat dissipation devices cannot be intelligently adjusted according to the actual situation, resulting in serious energy waste. Therefore, the present invention provides a heat dissipation device for an efficient LED lighting fixture. Summary of the Invention

[0003] Aiming at the defects in the prior art, the present invention provides a heat dissipation device for an efficient LED lighting fixture, which overcomes the problems of limited heat dissipation area, low heat dissipation efficiency, and the inability to be intelligently adjusted according to the actual situation when the heat dissipation demand is small, resulting in serious energy waste.

[0004] To achieve the above object, the present invention provides the following technical solution: A heat dissipation device for an efficient LED lighting fixture includes a circular bottom plate, on which a square frame is fixedly installed, and on the square frame, a lamp board is fixedly installed. On the square frame, there are a first unfolding assembly and a second unfolding assembly. The first unfolding assembly includes two first unfolding side plates and two first square frame plates, and the second unfolding assembly includes two second unfolding side plates and two second square frame plates. The two first unfolding side plates and the two second unfolding side plates are symmetrically and slidably installed on the square frame, and the two first square frame plates and the two second square frame plates are symmetrically and rotatably installed on the square frame. The first unfolding side plate is movably connected to the corresponding first square frame plate, and the second unfolding side plate is movably connected to the corresponding second square frame plate. Heat dissipation impellers are provided on the square frame, the first square frame plates, and the second square frame plates. On the square frame, there are also a first driving assembly and a second driving assembly. The first driving assembly is used to adjust the distance between the two first unfolding side plates, and the second driving assembly is used to adjust the distance between the two second unfolding side plates.

[0005] Further, a controller is fixedly installed on the lamp board, and temperature sensors are symmetrically and fixedly installed on the lamp board. The temperature sensors are used to monitor the temperature of the lamp board and the controller.

[0006] Further, the first unfolded side plate and the second unfolded side plate are spaced apart. On the first unfolded side plate, strip-shaped sliding plates one are symmetrically and fixedly arranged, and the strip-shaped sliding plates one on the two first unfolded side plates are arranged in a staggered manner. On the second unfolded side plate, strip-shaped sliding plates two are symmetrically and fixedly arranged, and the strip-shaped sliding plates two on the two second unfolded side plates are arranged in a staggered manner. Both the strip-shaped sliding plate one and the strip-shaped sliding plate two are slidably engaged with the square frame.

[0007] Further, torsion springs are arranged between both the first square frame plate and the second square frame plate and the square frame. On both the first square frame plate and the second square frame plate, auxiliary short rods are symmetrically and fixedly arranged. The auxiliary short rods are all located at the positions on the first square frame plate and the second square frame plate that are farthest from the lamp board. On the first unfolded side plate and the second unfolded side plate, strip-shaped chute plates are symmetrically and fixedly installed, and the strip-shaped chute plates are movably connected with the corresponding auxiliary short rods.

[0008] Further, a first shielding plate is fixedly installed on the first unfolded side plate, and a second shielding plate is fixedly installed on the second unfolded side plate. When the two first shielding plates and the two second shielding plates are at the closest positions, they form a square protective cover for protecting the lamp board.

[0009] Further, support strip plates are fixedly installed on both the first unfolded side plate and the second unfolded side plate. Connecting short rods are fixedly arranged on the support strip plates. The first driving assembly includes a driving sliding plate one slidably installed on the square frame. Between the driving sliding plate one and the connecting short rods on the two first unfolded side plates, strip-shaped connecting plates one are arranged. One end of the strip-shaped connecting plate one is rotatably connected with the driving sliding plate one, and the other end of the strip-shaped connecting plate one is rotatably connected with the corresponding connecting short rod.

[0010] Further, the second driving assembly includes a driving sliding plate two slidably installed on the square frame. The driving sliding plate two is arranged above the driving sliding plate one. Between the driving sliding plate two and the connecting short rods on the two second unfolded side plates, strip-shaped connecting plates two are arranged. One end of the strip-shaped connecting plate two is rotatably connected with the driving sliding plate two, and the other end of the strip-shaped connecting plate two is rotatably connected with the corresponding connecting short rod.

[0011] Further, a first transmission shaft is rotatably installed on the driving sliding plate one, and a torsion spring is arranged between the first transmission shaft and the driving sliding plate one. A second transmission shaft is rotatably installed on the driving sliding plate two, and a torsion spring is arranged between the driving sliding plate two and the second transmission shaft. An unfolding lead screw is also rotatably installed on the square frame. Both the first transmission shaft and the second transmission shaft form a screw pair with the unfolding lead screw.

[0012] Further, limiting blocks one are symmetrically and fixedly arranged on the square frame, and the limiting blocks one are used to limit the position of the driving sliding plate one. Limiting blocks two are also symmetrically and fixedly arranged on the square frame, and the limiting blocks two are used to limit the position of the driving sliding plate two.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: (1) Through the mutual cooperation of the unfolding component one, the unfolding component two, the driving component one, and the driving component two, the heat dissipation impellers of the present invention can be distributed over a larger area, thereby effectively increasing the air flow rate around the lamp board and improving the heat dissipation efficiency. (2) When the heat dissipation requirement is small, the unfolding side plate one, the unfolding side plate two, the square frame plate one, and the square frame plate two of the present invention can be folded together, making the entire device structure compact and convenient for storage. (3) The present invention can make the unfolding components unfold in sequence according to the change of temperature, so as to intelligently adjust the heat dissipation requirement, which can greatly reduce energy consumption, improve energy utilization efficiency, and achieve significant energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the folded state of the present invention.

[0016] Figure 3 It is a schematic diagram of the square frame of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure at the lamp board of the present invention.

[0018] Figure 5 It is a schematic diagram of the structure at the heat dissipation impeller of the present invention.

[0019] Figure 6 It is a top view of the structure at the heat dissipation impeller of the present invention.

[0020] Figure 7 It is a schematic diagram of the unfolding component one and the unfolding component two of the present invention.

[0021] Figure 8 is Figure 7 a partial enlarged schematic diagram of part A in

[0022] Figure 9 is Figure 7 a partial enlarged schematic diagram of part B in

[0023] Figure 10 is Figure 7 a partial enlarged schematic diagram of part C in

[0024] Figure 11 It is a front view of the structure at the strip chute plate of the present invention.

[0025] Figure 12 It is a top view of the folded state of the present invention.

[0026] Reference Signs: 101 - circular bottom plate; 102 - square frame; 103 - unfolding side plate I; 104 - unfolding side plate II; 105 - baffle plate I; 106 - baffle plate II; 107 - lamp board; 108 - controller; 109 - temperature sensor; 110 - heat dissipation impeller; 111 - heat dissipation motor; 112 - square frame plate I; 113 - square frame plate II; 114 - auxiliary short rod; 115 - auxiliary strip plate; 116 - strip-shaped sliding plate I; 117 - strip-shaped sliding plate II; 118 - strip-shaped connecting plate I; 119 - strip-shaped connecting plate II; 120 - unfolding lead screw; 121 - strip-shaped chute plate; 122 - supporting strip plate; 123 - connecting short rod; 124 - unfolding motor; 125 - driving sliding plate I; 126 - driving sliding plate II; 127 - transmission shaft I; 128 - transmission shaft II; 129 - limiting block I; 130 - limiting block II; 131 - lamp bead. Detailed Implementation Manner

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Example: Refer to Figures 1-12 , a heat dissipation device for an efficient LED lighting fixture, including a circular bottom plate 101, a square frame 102 is fixedly installed on the circular bottom plate 101, a lamp board 107 is fixedly installed on the square frame 102, a plurality of lamp beads 131 are fixedly installed in a linear array on the lamp board 107, a controller 108 is fixedly installed on the lamp board 107, the controller 108 is used to control the plurality of lamp beads 131 on the lamp board 107, and temperature sensors 109 are symmetrically and fixedly installed on the lamp board 107, and the temperature sensors 109 are used to monitor the temperatures of the lamp board 107 and the controller 108.

[0029] An unfolding assembly I and an unfolding assembly II are arranged on the square frame 102. The unfolding assembly I includes two unfolding side plates I 103 and two square frame plates I 112. The unfolding assembly II includes two unfolding side plates II 104 and two square frame plates II 113. The two unfolding side plates I 103 and the two unfolding side plates II 104 are symmetrically and slidably installed on the square frame 102. The unfolding side plates I 103 and the unfolding side plates II 104 are arranged at intervals. The unfolding side plates I 103 and the unfolding side plates II 104 are arranged in a circumferential array relative to the axis of the circular bottom plate 101. Strip-shaped sliding plates I 116 are symmetrically and fixedly arranged on the unfolding side plates I 103. The strip-shaped sliding plates I 116 on the two unfolding side plates I 103 are arranged in a staggered manner. Strip-shaped sliding plates II 117 are symmetrically and fixedly arranged on the unfolding side plates II 104. The strip-shaped sliding plates II 117 on the two unfolding side plates II 104 are arranged in a staggered manner. The strip-shaped sliding plates I 116 and the strip-shaped sliding plates II 117 are both slidably matched with the square frame 102.

[0030] Two square frame plates one 112 and two square frame plates two 113 are symmetrically and rotatably installed on the square frame 102. A torsion spring is arranged between the square frame plate one 112 and the square frame 102. One end of the torsion spring is fixedly connected to the square frame plate one 112, and the other end of the torsion spring is fixedly connected to the square frame 102. A torsion spring is arranged between the square frame plate two 113 and the square frame 102. One end of the torsion spring is fixedly connected to the square frame plate two 113, and the other end of the torsion spring is fixedly connected to the square frame 102. The unfolding side plate one 103 is movably connected to the corresponding square frame plate one 112, and the unfolding side plate two 104 is movably connected to the corresponding square frame plate two 113. Heat dissipation impellers 110 are arranged on the square frame 102, the square frame plate one 112, and the square frame plate two 113. Auxiliary strip plates 115 are fixedly arranged on both the square frame plate one 112 and the square frame plate two 113. The heat dissipation impeller 110 is rotatably connected to the square frame 102, and the heat dissipation impeller 110 is rotatably connected to the corresponding auxiliary strip plate 115. Heat dissipation motors 111 are fixedly installed on both the square frame 102 and the auxiliary strip plate 115. The output shaft of the heat dissipation motor 111 is fixedly connected to the corresponding heat dissipation impeller 110. The heat dissipation impeller 110 on the square frame plate one 112 is located at the central position of the square frame plate one 112, the heat dissipation impeller 110 on the square frame plate two 113 is located at the central position of the square frame plate two 113, and the heat dissipation impeller 110 on the square frame 102 is located at the central position of the square frame plate two 113.

[0031] Auxiliary short rods 114 are symmetrically and fixedly arranged on both the square frame plate one 112 and the square frame plate two 113. The auxiliary short rods 114 are all located at the positions on the square frame plate one 112 and the square frame plate two 113 that are farthest from the lamp board 107. Strip-shaped chute plates 121 are symmetrically and fixedly installed on the unfolding side plate one 103 and the unfolding side plate two 104. The strip-shaped chute plates 121 are movably connected to the corresponding auxiliary short rods 114. The length of the unfolding side plate one 103 is greater than the length of the unfolding side plate two 104.

[0032] When in the initial position, the torsion springs between the first square frame plate 112 and the second square frame plate 113 and the square frame 102 are not compressed. At this time, both the first square frame plate 112 and the second square frame plate 113 are in the vertically upward state. The auxiliary short rods 114 are both directly above the lamp panel 107, and the auxiliary short rods 114 are located at the end positions of the corresponding strip chute plates 121 that are farthest from the lamp panel 107. Under the action of the auxiliary short rods 114 and the strip chute plates 121, the two first unfolded side plates 103 are in the closest position to each other, and the two second unfolded side plates 104 are in the closest position to each other. At this time, both the first unfolded side plate 103 and the second unfolded side plate 104 are in the closest position to each other. And because the length of the first unfolded side plate 103 is greater than the length of the second unfolded side plate 104, at this time, the two second unfolded side plates 104 are located between the two strip chute plates 121 on the first unfolded side plate 103. That is, at this time, the first unfolded side plate 103, the second unfolded side plate 104, the first square frame plate 112, and the second square frame plate 113 are in the folded state.

[0033] When it is necessary to expand the first unfolded side plate 103, the second unfolded side plate 104, the first square frame plate 112, and the second square frame plate 113, first drive the two first unfolded side plates 103 to move away from each other. The first strip slide plate 116 on the first unfolded side plate 103 slides relative to the square frame 102. Under the action of the auxiliary short rod 114 and the strip chute plate 121 corresponding to the first unfolded side plate 103, the end of the first square frame plate 112 that is farthest from the lamp panel 107 rotates away from the square frame 102. At this time, the auxiliary short rod 114 corresponding to the first unfolded side plate 103 slides on the corresponding strip chute plate 121, and finally the two first unfolded side plates 103 are in the farthest position from each other. At this time, the corresponding two first square frame plates 112 are both in the horizontal state under the action of the auxiliary short rods 114 and the strip chute plates 121. That is, at this time, the heat dissipation impellers 110 on the two first square frame plates 112 and the heat dissipation impellers 110 on the circular bottom plate 101 are in the same plane.

[0034] When the two first unfolded side plates 103 are at the farthest positions from each other, at this time, the second unfolded side plates 104 are released from the restrictions of the two strip chute plates 121 on the first unfolded side plates 103. Drive the two second unfolded side plates 104 to move away from each other. The strip slide plates 117 on the second unfolded side plates 104 slide relative to the square frame 102. By the same token, finally, the two second unfolded side plates 104 are at the farthest positions from each other. At this time, the two second square frame plates 113 are also in a horizontal state, that is, at this time, the heat dissipation impellers 110 on the first square frame plate 112 and the second square frame plate 113 are all in the same plane as the heat dissipation impellers 110 on the square frame 102, that is, the unfolding of the first unfolded side plates 103, the second unfolded side plates 104, the first square frame plate 112, and the second square frame plate 113 is realized. At this time, a cross-shaped distribution is formed among the square frame 102, the first square frame plate 112, and the second square frame plate 113.

[0035] A first shielding plate 105 is fixedly installed on the first unfolded side plate 103, and a second shielding plate 106 is fixedly installed on the second unfolded side plate 104. When the two first shielding plates 105 and the two second shielding plates 106 are at the closest positions to each other, they form a square protective cover, and the square protective cover is used to protect the lamp board 107, that is, when the first unfolded side plates 103 and the second unfolded side plates 104 are at the closest positions to each other, the first shielding plates 105 and the second shielding plates 106 are also at the closest positions to each other. At this time, both sides of the first shielding plate 105 are in contact with the adjacent second shielding plates 106, and both sides of the second shielding plate 106 are in contact with the adjacent first shielding plates 105, that is, at this time, the lamp board 107 is located inside the directional protective cover formed by the first shielding plate 105 and the second shielding plate 106.

[0036] A first driving assembly and a second driving assembly are also provided on the square frame 102. The first driving assembly is used to adjust the distance between the two first unfolded side plates 103, and the second driving assembly is used to adjust the distance between the two second unfolded side plates 104. Support strip plates 122 are fixedly installed on both the first unfolded side plates 103 and the second unfolded side plates 104, and connecting short rods 123 are fixedly arranged on the support strip plates 122. The length of the support strip plate 122 corresponding to the second unfolded side plate 104 is greater than the length of the support strip plate 122 corresponding to the first unfolded side plate 103, that is, the distance between the axis of the connecting short rod 123 corresponding to the second unfolded side plate 104 and the upper surface of the lamp board 107 is greater than the distance between the axis of the connecting short rod 123 corresponding to the first unfolded side plate 103 and the upper surface of the lamp board 107.

[0037] The first driving component includes a first driving slide plate 125 slidably mounted on the square frame 102. Between the first driving slide plate 125 and the connecting short rods 123 on the two unfolding side plates 103, there are first strip-shaped connecting plates 118. One end of the first strip-shaped connecting plate 118 is rotatably connected to the first driving slide plate 125, and the other end of the first strip-shaped connecting plate 118 is rotatably connected to the corresponding connecting short rod 123. The second driving component includes a second driving slide plate 126 slidably mounted on the square frame 102. The second driving slide plate 126 is arranged above the first driving slide plate 125. Between the second driving slide plate 126 and the connecting short rods 123 on the two unfolding side plates 104, there are second strip-shaped connecting plates 119. One end of the second strip-shaped connecting plate 119 is rotatably connected to the second driving slide plate 126, and the other end of the second strip-shaped connecting plate 119 is rotatably connected to the corresponding connecting short rod 123.

[0038] A first transmission shaft 127 is rotatably mounted on the first driving slide plate 125. A torsion spring is arranged between the first transmission shaft 127 and the first driving slide plate 125. One end of the torsion spring is fixedly connected to the first driving slide plate 125, and the other end of the torsion spring is fixedly connected to the first transmission shaft 127. A second transmission shaft 128 is rotatably mounted on the second driving slide plate 126. A torsion spring is arranged between the second driving slide plate 126 and the second transmission shaft 128. One end of the torsion spring is fixedly connected to the second driving slide plate 126, and the other end of the torsion spring is fixedly connected to the second transmission shaft 128. An unfolding lead screw 120 is also rotatably mounted on the square frame 102. Both the first transmission shaft 127 and the second transmission shaft 128 form a screw pair with the unfolding lead screw 120. An unfolding motor 124 is fixedly mounted on the square frame 102. The output shaft of the unfolding motor 124 is fixedly connected to the unfolding lead screw 120.

[0039] On the square frame 102, first limiting blocks 129 are symmetrically and fixedly arranged, and the first limiting blocks 129 are used to limit the position of the first driving slide plate 125. On the square frame 102, second limiting blocks 130 are also symmetrically and fixedly arranged, and the second limiting blocks 130 are used to limit the position of the second driving slide plate 126.

[0040] When the first driving slide plate 125 is at the position closest to the unfolding motor 124, at this time, the lower surface of the first driving slide plate 125 contacts the upper end surface of the first limiting block 129. Under the action of the first limiting block 129, at this time, the first driving slide plate 125 cannot move downward continuously. At this time, under the action of the first strip-shaped connecting plate 118, the two unfolding side plates 103 are at the position farthest apart.

[0041] When the driving slide plate two 126 is at the position closest to the unfolding motor 124, the lower surface of the driving slide plate two 126 contacts the upper end surface of the limiting block two 130. Under the action of the limiting block two 130, the driving slide plate two 126 cannot move downward any further. At this time, under the action of the strip connecting plate two 119, the two unfolding side plates two 104 are at the farthest distance from each other, and at this time, the driving slide plate two 126 does not contact the driving slide plate one 125.

[0042] In the initial position, that is, when the unfolding side plate one 103 and the unfolding side plate two 104 are both at the closest position to each other, at this time, both the driving slide plate one 125 and the driving slide plate two 126 are at the farthest position from the unfolding motor 124. At this time, the torsion spring between the transmission shaft two 128 and the driving slide plate two 126 is in a compressed state, and the torsion spring between the driving slide plate one 125 and the transmission shaft one 127 is not compressed.

[0043] Start the unfolding motor 124 to drive the unfolding lead screw 120 to rotate. Under the action of the torsion spring between the driving slide plate one 125 and the transmission shaft one 127, the unfolding lead screw 120 rotates relative to the transmission shaft one 127, that is, the driving slide plate one 125 and the transmission shaft one 127 slide downward synchronously. At this time, the torsion spring between the transmission shaft two 128 and the driving slide plate two 126 begins to recover, that is, at this time, the unfolding lead screw 120 and the transmission shaft two 128 rotate synchronously. Under the action of the two strip connecting plates one 118, the two unfolding side plates one 103 move away from each other. Eventually, the driving slide plate one 125 contacts the limiting block one 129. Under the action of the limiting block one 129, the driving slide plate one 125 cannot move downward any further. At this time, the two unfolding side plates one 103 are at the closest position to each other, and at this time, the torsion spring between the driving slide plate two 126 and the transmission shaft two 128 is completely recovered.

[0044] The unfolding lead screw 120 continues to rotate. The driving slide plate one 125 cannot move downward any further, and the torsion spring between the driving slide plate one 125 and the transmission shaft one 127 is compressed. Under the action of the torsion spring between the driving slide plate two 126 and the transmission shaft two 128, the driving slide plate two 126 and the transmission shaft two 128 move downward synchronously. Under the action of the strip connecting plate two 119, the two unfolding side plates two 104 move away from each other. Eventually, the driving slide plate two 126 contacts the limiting block two 130. Under the action of the limiting block two 130, the driving slide plate two 126 cannot move downward any further. At this time, the two unfolding side plates two 104 are at the farthest position from each other.

[0045] Working principle: The controller 108 controls multiple lamp beads 131 on the lamp board 107, and the temperature sensor 109 monitors the temperature changes of the lamp board 107, the controller 108, and the lamp beads 131. Under normal conditions, the heat dissipation motor 111 on the square frame 102 is started to drive the corresponding heat dissipation impeller 110 to rotate. Under the action of the heat dissipation impeller 110 on the circular bottom plate 101, the lamp board 107 and the controller 108 below are cooled.

[0046] When the controller 108 detects that the temperatures of the lamp board 107 and the controller 108 increase, the deployment motor 124 is started to drive the deployment lead screw 120 to rotate. Under the action of the first driving assembly, the first deployment assembly operates, that is, the two first deployment side plates 103 are moved to the farthest positions from each other, that is, the two first square frame plates 112 are in the deployed state at this time. The heat dissipation motor 111 on the first square frame plate 112 is started to drive the corresponding heat dissipation impeller 110 to rotate, that is, the heat dissipation impeller 110 on the first square frame plate 112 cools the lamp board 107 and 18. When the controller 108 detects that the temperatures of the lamp board 107 and the controller 108 are still increasing, the deployment lead screw 120 continues to rotate. Under the action of the second driving assembly, the second deployment assembly operates, that is, the two second deployment side plates 104 are moved to the farthest positions from each other, that is, the two second square frame plates 113 are in the deployed state at this time. The heat dissipation motor 111 on the second square frame plate 113 is started to drive the corresponding heat dissipation impeller 110 to rotate, that is, the heat dissipation impeller 110 on the second square frame plate 113 cools the lamp board 107 and 18. That is, at this time, 5 heat dissipation impellers 110 cool the lamp board 107 and the controller 108. Under the action of the heat dissipation impellers 110 on the first square frame plate 112 and the second square frame plate 113, the air flow rate around the lamp board 107 and the controller 108 is increased, thereby cooling the surroundings of the lamp board 107 and the controller 108, and thus achieving efficient cooling of the lamp board 107 and the controller 108.

[0047] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes without creative labor starting from the above concepts, and all fall within the protection scope of the present invention.

Claims

1. An efficient heat dissipation device for an LED lighting fixture, comprising a circular bottom plate (101), a square frame (102) fixedly installed on the circular bottom plate (101), and a lamp board (107) fixedly installed on the square frame (102), characterized in that: An expansion component one and an expansion component two are arranged on the square frame (102). The expansion component one includes two expansion side plates one (103) and two square frame plates one (112), and the expansion component two includes two expansion side plates two (104) and two square frame plates two (113). The two expansion side plates one (103) and the two expansion side plates two (104) are symmetrically and slidably installed on the square frame (102), and the two square frame plates one (112) and the two square frame plates two (113) are symmetrically and rotatably installed on the square frame (102). The expansion side plate one (103) is movably connected to the corresponding square frame plate one (112), and the expansion side plate two (104) is movably connected to the corresponding square frame plate two (113). Heat dissipation impellers (110) are arranged on the square frame (102), the two square frame plates one (112), and the two square frame plates two (113); A drive component one and a drive component two are further arranged on the square frame (102). The drive component one is used to adjust the distance between the two expansion side plates one (103), and the drive component two is used to adjust the distance between the two expansion side plates two (104); When the heat dissipation requirement is small, the expansion side plate one, the expansion side plate two, the square frame plate one, and the square frame plate two are folded together; a controller (108) is fixedly installed on the lamp board (107), and temperature sensors (109) are symmetrically and fixedly installed on the lamp board (107). The temperature sensors (109) are used to monitor the temperatures of the lamp board (107) and the controller (108); the multiple lamp beads (131) on the lamp board (107) are controlled by the controller (108), and the temperature changes of the lamp board (107), the controller (108), and the lamp beads (131) are monitored by the temperature sensors (109); in the normal state, the heat dissipation impellers (110) on the square frame (102) are started to rotate to dissipate heat from the lamp board (107) and the controller (108); when the temperature sensors (109) detect that the temperatures of the lamp board (107) and the controller (108) increase, the two expansion side plates one (103) are moved to the position with the farthest distance from each other under the action of the drive component one. At this time, the two square frame plates one (112) are in the expanded state, and the heat dissipation impellers (110) on the square frame plates one (112) are started to rotate; when the temperature sensors (109) detect that the temperatures of the lamp board (107) and the controller (108) are still increasing, the two expansion side plates two (104) are moved to the position with the farthest distance from each other under the action of the drive component two. At this time, the two square frame plates two (113) are in the expanded state, and the heat dissipation impellers (110) on the square frame plates two (113) are started to rotate. At this time, the 5 heat dissipation impellers (110) dissipate heat from the lamp board (107) and the controller (108).

2. The heat dissipation device for an efficient LED lighting fixture according to claim 1, wherein: The unfolding side plate one (103) and the unfolding side plate two (104) are arranged at intervals. Bar-shaped sliding plates one (116) are symmetrically and fixedly arranged on the unfolding side plate one (103). The bar-shaped sliding plates one (116) on the two unfolding side plates one (103) are arranged in a staggered manner. Bar-shaped sliding plates two (117) are symmetrically and fixedly arranged on the unfolding side plate two (104). The bar-shaped sliding plates two (117) on the two unfolding side plates two (104) are arranged in a staggered manner. The bar-shaped sliding plates one (116) and the bar-shaped sliding plates two (117) are both in sliding fit with the square frame (102).

3. The heat dissipation device for an efficient LED lighting fixture according to claim 2, wherein: Torsion springs are arranged between the square frame plate one (112) and the square frame plate two (113) and the square frame (102). Auxiliary short rods (114) are symmetrically and fixedly arranged on both the square frame plate one (112) and the square frame plate two (113). The auxiliary short rods (114) are all located at the positions on the square frame plate one (112) and the square frame plate two (113) that are farthest from the lamp plate (107). Bar-shaped chute plates (121) are symmetrically and fixedly installed on the unfolding side plate one (103) and the unfolding side plate two (104). The bar-shaped chute plates (121) are movably connected with the corresponding auxiliary short rods (114).

4. An efficient heat dissipation device for an LED lighting fixture according to claim 3, characterized in that: A shielding plate one (105) is fixedly installed on the unfolding side plate one (103). A shielding plate two (106) is fixedly installed on the unfolding side plate two (104). When the two shielding plates one (105) and the two shielding plates two (106) are at the closest positions, they form a square protective cover for protecting the lamp plate (107).

5. The heat dissipation device for an efficient LED lighting fixture according to claim 4, wherein: Supporting strip plates (122) are fixedly installed on both the unfolding side plate one (103) and the unfolding side plate two (104). Connecting short rods (123) are fixedly arranged on the supporting strip plates (122). The driving component one includes a driving sliding plate one (125) slidably installed on the square frame (102). Bar-shaped connecting plates one (118) are arranged between the driving sliding plate one (12 / 5) and the connecting short rods (123) on the two unfolding side plates one (103). One end of the bar-shaped connecting plate one (118) is rotatably connected with the driving sliding plate one (125), and the other end of the bar-shaped connecting plate one (118) is rotatably connected with the corresponding connecting short rod (123).

6. The heat dissipation device for an efficient LED lighting fixture according to claim 5, wherein: The driving component two includes a driving sliding plate two (126) slidably installed on the square frame (102). The driving sliding plate two (126) is arranged above the driving sliding plate one (125). Bar-shaped connecting plates two (119) are arranged between the driving sliding plate two (126) and the connecting short rods (123) on the two unfolding side plates two (104). One end of the bar-shaped connecting plate two (119) is rotatably connected with the driving sliding plate two (126), and the other end of the bar-shaped connecting plate two (119) is rotatably connected with the corresponding connecting short rod (123).

7. An efficient heat dissipation device for an LED lighting fixture according to claim 6, wherein: A drive slide plate one (125) is rotatably mounted with a drive shaft one (127), and a torsion spring is arranged between the drive shaft one (127) and the drive slide plate one (125). A drive slide plate two (126) is rotatably mounted with a drive shaft two (128), and a torsion spring is arranged between the drive slide plate two (126) and the drive shaft two (128). An unfolding lead screw (120) is also rotatably mounted on the square frame (102). Both the drive shaft one (127) and the drive shaft two (128) form a screw pair with the unfolding lead screw (120).

8. An efficient heat dissipation device for an LED lighting fixture according to claim 7, wherein: Limit blocks one (129) are symmetrically and fixedly arranged on the square frame (102), and the limit blocks one (129) are used to limit the position of the drive slide plate one (125). Limit blocks two (130) are also symmetrically and fixedly arranged on the square frame (102), and the limit blocks two (130) are used to limit the position of the drive slide plate two (126).

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