LED corn lamp with embedded heat dissipation structure

Abstract

The invention relates to the technical field of lighting devices, in particular to an LED corn lamp with an embedded heat dissipation structure, the LED corn lamp comprises a lamp holder and a lamp shell, a plurality of lamp bodies which are circumferentially distributed at equal intervals are arranged on the outer wall of the lamp holder, each lamp body is formed by linearly arranging a plurality of lamp beads at equal intervals, a heat conduction frame is welded to the outer wall of the lamp shell, and the heat conduction frame is welded to the lamp shell. And a transparent cover is sleeved on the outer side area of the lamp shell, which is positioned on the heat conducting frame. According to the LED lamp, through the arranged first heat dissipation mechanism, after the temperature in the lamp rises, expansion liquid is heated to expand, a first piston drives a second piston to move upwards, and therefore external cold air is sucked into the lamp shell, and the heat dissipation effect is achieved; and the first transmission shaft drives the second transmission shaft to rotate, so that the gear drives the heat dissipation fan to rotate quickly, the effect of blowing air to the outer wall of the lamp shell for heat dissipation is achieved, and the situation that extra electric power is needed for driving heat dissipation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of lighting devices, and in particular relates to an LED corn lamp with a built-in heat dissipation structure. Background Art

[0002] LED corn lights are lamps that arrange LED lamp beads into corn cob shapes so that they can emit light 360 degrees. They are often used for outdoor garden lighting. Because the lamp beads are closely arranged together, a lot of heat is generated during operation of the corn lights, and heat dissipation treatment is required to avoid affecting the life of the lamp.

[0003] However, the heat dissipation function of the existing corn lamp needs to be realized through electric drive, which greatly increases the power consumption of the corn lamp and is not conducive to energy saving and environmental protection. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose an LED corn lamp with a built-in heat dissipation structure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An LED corn lamp with an embedded heat dissipation structure comprises a lamp holder and a lamp housing, wherein the outer wall of the lamp holder is provided with a plurality of lamp bodies distributed equidistantly in a circumferential manner, each of the lamp bodies is formed by a plurality of lamp beads arranged linearly at an equidistant manner, a heat conducting frame is welded on the outer wall of the lamp housing, a transparent cover is mounted on the outer area of ​​the lamp housing located at the heat conducting frame, the lamp holder is clamped on the top of the lamp housing, and the lamp body is inserted in the gap between the heat conducting frame and the transparent cover, and further comprises: The first heat dissipation mechanism is used to achieve heat dissipation effect by utilizing the principle of thermal expansion and contraction when the temperature inside the corn lamp rises, thereby avoiding extra power loss. The heat dissipation mechanism is arranged in the heat conducting frame; And a second heat dissipation mechanism is used for blowing air to dissipate heat when the temperature inside the corn lamp rises. The second heat dissipation mechanism is arranged in the lamp holder.

[0006] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, fixing frames are welded on the outer walls of the lamp holder and the lamp shell, an installation chamber is opened on the top of the lamp holder, and the top of the installation chamber is connected to an end cover by bolts, a photovoltaic panel is fixed on the outer wall of the end cover, and a battery is fixed on the inner wall of the end cover, the photovoltaic panel and the battery are connected by a circuit, and the battery and the lamp body are connected by a circuit.

[0007] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, the heat dissipation mechanism includes a piston. An expansion chamber is provided on the bottom inner wall of the lamp housing located on the inner side of the heat-conducting frame. The expansion chamber is filled with a thermal expansion liquid. A piston is slidably inserted in the expansion chamber. A sleeve is welded on the top outer wall of the piston, and a piston is welded on the top outer wall of the sleeve.

[0008] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, the second piston is slidably inserted in the heat-conducting frame, a return spring is welded between the outer wall of the first piston and the top inner wall of the expansion chamber, and a plurality of air inlets and a plurality of exhaust ports are opened on the bottom outer wall of the lamp housing.

[0009] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, a one-way air valve is provided on the outer wall of the piston 2 and in the air inlet, each of the air inlets extends to the inner side of the heat-conducting frame, and each of the exhaust ports extends to the gap between the heat-conducting frame and the transparent cover.

[0010] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, the heat dissipation mechanism 2 includes a transmission shaft 1 and a transmission shaft 2. The transmission shaft 1 is rotatably plugged into the bottom of the lamp housing. The upper and lower ends of the transmission shaft 1 respectively pass through the top of the expansion chamber and the bottom of the lamp housing. The transmission shaft 1 is slidably plugged into the sleeve, and the transmission shaft 2 is rotatably plugged into the bottom outer wall of the lamp holder.

[0011] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, an auxiliary fan is welded on the bottom outer wall of the transmission shaft one, and a gear ring is welded on the top outer wall of the transmission shaft two, and the gear ring is located in the installation room, and a gear is plugged in the installation room through the rotation of the shaft, and the gear and the gear ring are engaged with each other, and a heat dissipation fan is welded on the rotating shaft of the gear, and the heat dissipation fan is located outside the installation room, and an interception cover compatible with the heat dissipation fan is welded on the top outer wall of the lamp housing.

[0012] In the above-mentioned LED corn lamp with an embedded heat dissipation structure, matching threads are provided on the top outer wall of the transmission shaft one and the inner wall of the sleeve, a special-shaped groove is provided on the top outer wall of the transmission shaft one, and a special-shaped column matching the special-shaped groove is welded on the bottom outer wall of the transmission shaft two, and the special-shaped column is inserted into the special-shaped groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the heat dissipation mechanism 1, when the temperature inside the lamp rises, the expansion fluid expands due to heat, so that the piston 1 drives the piston 2 to move upward, thereby increasing the space below the piston 2 to form a negative pressure, and then the external cold air is drawn into the lamp housing, and heat is exchanged with the cold air through the heat conduction frame to achieve the heat dissipation effect; 2. By setting up the heat dissipation mechanism 2, when the piston 1 moves up, the sleeve moves up accordingly. Under the action of the thread with large pitch and large lead angle, the transmission shaft 1 drives the transmission shaft 2 to rotate, and the transmission shaft 2 drives the gear ring to rotate, so that the gear drives the heat dissipation fan to rotate quickly, achieving the effect of blowing air and dissipating heat on the outer wall of the lamp housing; To summarize, by setting up the heat dissipation mechanism 1, when the internal temperature of the lamp rises, the expansion liquid expands due to the heat, so that the piston 1 drives the piston 2 to move upward, so that the external cold air is drawn into the lamp housing to achieve the heat dissipation effect. By setting up the heat dissipation mechanism 2, under the action of the large pitch and large lead angle of the thread, the transmission shaft 1 drives the transmission shaft 2 to rotate, so that the gear drives the heat dissipation fan to rotate quickly, achieving the effect of blowing air to dissipate heat on the outer wall of the lamp housing, avoiding the need for additional electricity to drive the heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is an exploded view of the overall structure of the present invention.

[0016] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the lamp housing of the present invention.

[0017] Figure 4 It is a three-dimensional schematic diagram of the piston of the present invention.

[0018] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the lamp holder of the present invention.

[0019] Figure 6 It is a three-dimensional schematic diagram of the gear and gear ring of the present invention.

[0020] Figure 7 It is a three-dimensional schematic diagram of the transmission shaft 1 and the transmission shaft 2 of the present invention.

[0021] Figure 8 It is a plan view of the overall structure of the present invention in working state.

[0022] In the figure: 1. lamp holder; 11. installation chamber; 12. end cover; 121. photovoltaic panel; 122. battery; 13. lamp body; 14. fixing frame; 2. lamp housing; 21. heat-conducting frame; 22. transparent cover; 23. expansion chamber; 24. air inlet; 25. exhaust port; 27. interception cover; 3. piston one; 31. sleeve; 32. piston two; 321. one-way air valve; 33. reset spring; 5. transmission shaft one; 51. special-shaped groove; 52. auxiliary fan; 53. thread; 6. transmission shaft two; 61. special-shaped column; 62. gear ring; 7. gear; 71. cooling fan. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] See also Figure 1-Figure 8 The present invention provides a technical solution: an LED corn lamp with an embedded heat dissipation structure, comprising a lamp holder 1 and a lamp housing 2, a plurality of lamp bodies 13 equidistantly distributed in a circumferential manner are arranged on the outer wall of the lamp holder 1, each lamp body 13 is formed by a plurality of lamp beads equidistantly arranged linearly, a heat conducting frame 21 is welded on the outer wall of the lamp housing 2, a transparent cover 22 is mounted on the outer area of ​​the heat conducting frame 21 of the lamp housing 2, the lamp holder 1 is clamped on the top of the lamp housing 2, and the lamp body 13 is inserted in the gap between the heat conducting frame 21 and the transparent cover 22, and further comprising: The heat dissipation mechanism 1 is used to achieve heat dissipation effect by utilizing the principle of thermal expansion and contraction when the temperature inside the corn lamp rises, thereby avoiding extra power loss. The heat dissipation mechanism is arranged in the heat conducting frame 21; and a second heat dissipation mechanism, which is used to blow air to dissipate heat when the temperature inside the corn lamp rises, and the second heat dissipation mechanism is arranged in the lamp holder 1; A fixing frame 14 is welded to the outer walls of the lamp holder 1 and the lamp housing 2. An installation chamber 11 is opened at the top of the lamp holder 1. The top of the installation chamber 11 is connected to an end cover 12 by bolts. A photovoltaic panel 121 is fixed to the outer wall of the end cover 12. A battery 122 is fixed to the inner wall of the end cover 12. The photovoltaic panel 121 and the battery 122 are connected through a circuit, and the battery 122 and the lamp body 13 are connected through a circuit.

[0026] The fixing frame 14 is provided to facilitate the installation and fixing of the lamp, and the photovoltaic panel 121 is provided to charge the battery 122 .

[0027] Specifically, the heat dissipation mechanism 1 includes a piston 3, and an expansion chamber 23 is provided on the bottom inner wall of the lamp housing 2 located on the inner side of the heat-conducting frame 21. The expansion chamber 23 is filled with a thermal expansion liquid, and a piston 3 is slidably inserted in the expansion chamber 23. A sleeve 31 is welded on the top outer wall of the piston 3, and a piston 2 32 is welded on the top outer wall of the sleeve 31. The piston 2 32 is slidably inserted in the heat-conducting frame 21, and a return spring 33 is welded between the outer wall of the piston 3 and the top inner wall of the expansion chamber 23. A plurality of air inlets 24 and a plurality of exhaust ports 25 are provided on the bottom outer wall of the lamp housing 2, and a one-way air valve 321 is provided on the outer wall of the piston 2 32 and in the air inlet 24, each air inlet 24 extends to the inner side of the heat-conducting frame 21, and each exhaust port 25 extends to the gap between the heat-conducting frame 21 and the transparent cover 22.

[0028] In the initial state, the temperature inside the lamp is low, and under the cold shrinkage effect of the expansion fluid and the elastic force of the return spring 33, the piston 3 is located on the side close to the bottom end of the expansion chamber 23.

[0029] The above-mentioned heat dissipation mechanism 1 is further explained: when the temperature inside the lamp increases, the expansion fluid expands due to heat, so that the piston 1 3 drives the piston 2 32 to move upward, thereby increasing the space below the piston 2 32 to form a negative pressure, and then the external cold air enters the lamp housing 2 through the one-way air valve 321 in the air inlet 24, and exchanges heat with the cold air through the heat-conducting frame 21 to achieve a heat dissipation effect. When the temperature inside the lamp decreases, the expansion fluid contracts, so that the piston 1 3 drives the piston 2 32 to move downward and reset, thereby increasing the air pressure in the space below the piston 2 32, and then the above-mentioned cold air is blown into the upper area of ​​the piston 2 32 through the one-way air valve 321 on the piston 2 32. The airflow can enter the gap between the heat-conducting frame 21 and the transparent cover 22 through the top of the heat-conducting frame 21, and finally be discharged through the exhaust port 25, so as to achieve the effect of taking away the heat on the lamp body 13 and the transparent cover 22, thereby avoiding the heat on the transparent cover 22 to repeatedly heat and keep the lamp body 13 warm, and further improve the heat dissipation effect.

[0030] Specifically, the heat dissipation mechanism 2 includes a transmission shaft 1 5 and a transmission shaft 2 6. The bottom of the lamp housing 2 is rotatably plugged with the transmission shaft 1 5. The upper and lower ends of the transmission shaft 1 5 respectively penetrate the top of the expansion chamber 23 and the bottom of the lamp housing 2. The transmission shaft 1 5 is slidably plugged into the sleeve 31. The transmission shaft 2 6 is rotatably plugged into the bottom outer wall of the lamp holder 1. An auxiliary fan 52 is welded on the bottom outer wall of the transmission shaft 1 5. A gear ring 62 is welded on the top outer wall of the transmission shaft 2 6. The gear ring 62 is located in the installation chamber 11. The installation chamber 11 is rotatably plugged with a rotating shaft. Gear 7, gear 7 and gear ring 62 are meshed with each other, a cooling fan 71 is welded on the rotating shaft of gear 7, and the cooling fan 71 is located outside the installation chamber 11. An interception cover 27 matched with the cooling fan 71 is welded on the top outer wall of the lamp housing 2, and matching threads 53 are provided on the top outer wall of the transmission shaft 1 5 and the inner wall of the sleeve 31. A special-shaped groove 51 is provided on the top outer wall of the transmission shaft 1 5, and a special-shaped column 61 matched with the special-shaped groove 51 is welded on the bottom outer wall of the transmission shaft 2 6, and the special-shaped column 61 is inserted into the special-shaped groove 51.

[0031] The diameter of the gear ring 62 is greater than the diameter of the gear 7, so that when the gear ring 62 rotates, the gear 7 can drive the cooling fan 71 to rotate quickly. The thread 53 adopts a large pitch and a large lead angle, so that when the sleeve 31 moves up and down, the transmission shaft 5 can be driven to rotate through the thread 53, avoiding the self-locking phenomenon of the thread 53.

[0032] The above-mentioned heat dissipation mechanism 2 is further explained: when the expansion liquid is heated and expands, the piston 3 drives the sleeve 31 to move upward. Under the cooperation of the thread 53, the transmission shaft 5 rotates. Under the cooperation of the special-shaped groove 51 and the special-shaped column 61, the transmission shaft 2 6 drives the gear ring 62 to rotate, so that the gear 7 drives the heat dissipation fan 71 to rotate quickly, so as to achieve the effect of blowing air to dissipate heat from the outer wall of the lamp housing 2. When the temperature inside the lamp drops, the expansion liquid shrinks, so that the piston 3 with the sleeve 31 moves downward and resets, so that the transmission shaft 5 rotates in the opposite direction, and then the transmission shaft 5 drives the auxiliary fan 52 to rotate in the opposite direction. The auxiliary fan 52 blows air downward, so that the gas in the gap between the transparent cover 22 and the heat-conducting frame 21 is extracted through the exhaust port 25, so that the gas drawn into the heat dissipation mechanism 1 can be assisted to be discharged, and the hot air is prevented from staying inside the lamp to form a heat preservation phenomenon.

[0033] The working principle and use process of the present invention are as follows: the device is fixed in an open-air position. During the day, the photovoltaic panel 121 converts solar energy into electrical energy and stores it in the storage battery 122. At night, the storage battery 122 provides electricity for the lamp body 13. When the temperature inside the device rises, the expansion fluid expands due to the heat, so that the piston 13 drives the piston 2 32 to move upward. Under the action of the heat dissipation mechanism 1, the external cold air is drawn into the lamp housing 2 through the air inlet 24, and heat is exchanged with the cold air through the heat conduction frame 21 to achieve the heat dissipation effect. At the same time, the piston 1 3 drives the sleeve 31 to move upward, so that under the action of the heat dissipation mechanism 2, the gear 7 drives the heat dissipation fan 71 to rotate rapidly, so as to achieve the heat dissipation effect. The outer wall of the lamp housing 2 has the effect of blowing air to dissipate heat. When the temperature inside the device drops, the expansion liquid contracts, so that the piston 1 3 drives the sleeve 31 and the piston 2 32 to move down and reset. Under the action of the heat dissipation mechanism 1, the drawn gas enters the gap between the heat-conducting frame 21 and the transparent cover 22 through the top of the heat-conducting frame 21. At the same time, under the action of the heat dissipation mechanism 2, the auxiliary fan 52 blows air downward, so that a negative pressure is formed at the exhaust port 25, thereby accelerating the discharge of the gas in the gap between the transparent cover 22 and the heat-conducting frame 21, achieving the effect of taking away the heat on the lamp body 13 and the transparent cover 22, avoiding the heat on the transparent cover 22 to repeatedly heat and keep the lamp body 13 warm, and further improving the heat dissipation effect.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An LED corn lamp with an embedded heat dissipation structure, comprising a lamp holder (1) and a lamp housing (2), wherein the outer wall of the lamp holder (1) is provided with a plurality of lamp bodies (13) distributed equidistantly in a circumferential manner, each of the lamp bodies (13) being formed by a plurality of lamp beads arranged linearly and equidistantly, a heat conducting frame (21) being welded on the outer wall of the lamp housing (2), a transparent cover (22) being mounted on the outer area of ​​the heat conducting frame (21) of the lamp housing (2), the lamp holder (1) being snap-fitted to the top end of the lamp housing (2), and the lamp body (13) being inserted into the gap between the heat conducting frame (21) and the transparent cover (22), characterized in that: Also includes: A heat dissipation mechanism 1, used to achieve a heat dissipation effect by utilizing the principle of thermal expansion and contraction when the temperature inside the corn lamp rises, thereby avoiding additional power loss, wherein the heat dissipation mechanism is arranged in the heat conducting frame (21); And a second heat dissipation mechanism, used for blowing air to dissipate heat when the temperature inside the corn lamp rises, the second heat dissipation mechanism being arranged in the lamp holder (1).

2. The LED corn light with built-in heat dissipation structure according to claim 1, characterized in that: A fixing frame (14) is welded to the outer walls of the lamp holder (1) and the lamp housing (2); a mounting chamber (11) is provided at the top of the lamp holder (1); an end cover (12) is connected to the top of the mounting chamber (11) via bolts; a photovoltaic panel (121) is fixed to the outer wall of the end cover (12); a storage battery (122) is fixed to the inner wall of the end cover (12); the photovoltaic panel (121) and the storage battery (122) are connected via a circuit; and the storage battery (122) and the lamp body (13) are connected via a circuit.

3. The LED corn light with built-in heat dissipation structure according to claim 2, characterized in that: The heat dissipation mechanism 1 comprises a piston 1 (3); an expansion chamber (23) is provided on the bottom inner wall of the lamp housing (2) located inside the heat-conducting frame (21); the expansion chamber (23) is filled with a thermal expansion liquid; the piston 1 (3) is slidably inserted in the expansion chamber (23); a sleeve (31) is welded on the top outer wall of the piston 1 (3); and a piston 2 (32) is welded on the top outer wall of the sleeve (31).

4. The LED corn light with built-in heat dissipation structure according to claim 3, characterized in that: The second piston (32) is slidably inserted into the heat-conducting frame (21), a return spring (33) is welded between the outer wall of the first piston (3) and the top inner wall of the expansion chamber (23), and a plurality of air inlets (24) and a plurality of air outlets (25) are provided on the bottom outer wall of the lamp housing (2).

5. The LED corn light with built-in heat dissipation structure according to claim 4, characterized in that: One-way air valves (321) are provided on the outer wall of the second piston (32) and in the air inlet (24), each of the air inlet (24) extends to the inner side of the heat-conducting frame (21), and each of the air outlets (25) extends to the gap between the heat-conducting frame (21) and the transparent cover (22).

6. The LED corn light with built-in heat dissipation structure according to claim 1, characterized in that: The heat dissipation mechanism 2 comprises a transmission shaft 1 (5) and a transmission shaft 2 (6); the transmission shaft 1 (5) is rotatably plugged into the bottom of the lamp housing (2); the upper and lower ends of the transmission shaft 1 (5) respectively penetrate the top of the expansion chamber (23) and the bottom of the lamp housing (2); the transmission shaft 1 (5) is slidably plugged into the sleeve (31); and the transmission shaft 2 (6) is rotatably plugged into the bottom outer wall of the lamp holder (1).

7. The LED corn light with built-in heat dissipation structure according to claim 6, characterized in that: An auxiliary fan (52) is welded to the bottom outer wall of the transmission shaft 1 (5), a gear ring (62) is welded to the top outer wall of the transmission shaft 2 (6), the gear ring (62) is located in the installation chamber (11), a gear (7) is plugged into the installation chamber (11) via a rotating shaft, the gear (7) and the gear ring (62) are meshed with each other, a heat dissipation fan (71) is welded to the rotating shaft of the gear (7), the heat dissipation fan (71) is located outside the installation chamber (11), and an interception cover (27) adapted to the heat dissipation fan (71) is welded to the top outer wall of the lamp housing (2).

8. The LED corn light with built-in heat dissipation structure according to claim 7, characterized in that: Matching threads (53) are provided on the top outer wall of the transmission shaft (5) and the inner wall of the sleeve (31), a special-shaped groove (51) is provided on the top outer wall of the transmission shaft (5), and a special-shaped column (61) matching the special-shaped groove (51) is welded on the bottom outer wall of the transmission shaft (6), and the special-shaped column (61) is inserted into the special-shaped groove (51).

Images