Flow type heat dissipation light-emitting diode (LED) lamp
By setting up partitions and heat sinks inside the LED lamp cavity, a thermal difference is created and airflow is utilized, which solves the problem of poor heat dissipation of LED lamps and realizes a highly efficient flow-type heat dissipation design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN ZHONGGUANG OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2026-03-19
- Publication Date
- 2026-05-15
AI Technical Summary
Existing LED lighting fixtures have poor heat dissipation, which affects their performance.
The lamp adopts a flow-type heat dissipation design, which divides the lamp into a power supply area, a heat dissipation area and a light-emitting area by setting upper and lower partitions in the inner cavity of the lamp. The heat difference is formed by the heat insulation interval, heat dissipation fins and heat dissipation pipes, and air flow heat dissipation is achieved by using air vents and heat dissipation channels.
It significantly improves the heat dissipation effect of LED lamps, achieving efficient flow-type heat dissipation through the temperature difference between high-heat and low-heat areas and airflow.
Smart Images
Figure CN122041102A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of LED lighting fixtures, and more specifically, to LED lighting fixtures with fluid heat dissipation. Background Technology
[0002] As a new type of green light source product, LED is bound to be the trend of future development. As the fourth generation of lighting source or green light source, it has the characteristics of energy saving, environmental protection, long life and small size.
[0003] Currently, LEDs are widely used in lighting fixtures, forming LED lighting fixtures. LED lighting fixtures include a lamp housing, which contains a power supply and a lamp board, and the lamp board contains multiple LED light sources.
[0004] In existing technologies, both the power supply and the LED board of LED lights generate heat during operation. If heat is not dissipated in time, the performance of the LED lights will be greatly affected. Currently, heat sinks are generally used to conduct heat away from the power supply and the LED board; however, this method suffers from poor heat dissipation performance. Summary of the Invention
[0005] The purpose of this invention is to provide LED lighting fixtures with fluid heat dissipation, thereby solving the problem of poor heat dissipation in existing LED lighting fixtures.
[0006] The present invention is implemented as follows: a flowing heat dissipation LED lamp includes a lamp housing with an inner cavity. Along the inner cavity from top to bottom, an upper partition and a lower partition are respectively provided in the inner cavity. The upper partition and the lower partition are arranged alternately to divide the inner cavity into a power supply area, a heat dissipation area and a light-emitting area. The power supply area, heat dissipation area and light-emitting area are arranged sequentially from top to bottom. The power supply area is equipped with a power supply, the light-emitting area is equipped with a lamp board, the lamp board is equipped with multiple downward-facing LED light sources, the bottom of the light-emitting area is covered with a light-transmitting cover, and the light emitted by the LED light sources shines outward through the light-transmitting cover. The power supply is electrically connected to the lamp board. The heat dissipation area is provided with two heat sinks spaced apart and facing each other. The heat sinks pass through the upper partition and extend into the light source area, forming an upper section that abuts against the power supply. The lower part of the heat sink forms a lower section that abuts against the lamp plate. The heat dissipation area includes a high-heat area and a low-heat area, which are isolated from each other to form a heat insulation interval; the middle part of one heat sink is exposed in the high-heat area to form a high-heat section, and the middle part of another heat sink is exposed in the low-heat area to form a low-heat section, with the heat insulation interval between the high-heat section and the low-heat section; the high-heat section is provided with multiple heat dissipation fins, which are arranged at intervals. The heat dissipation area is provided with heat dissipation pipes, and heat dissipation channels are arranged through the heat dissipation pipes. The middle part of the heat dissipation pipes is placed in the heat insulation interval. One end of the heat dissipation pipe passes through the low-heat section to form a low-heat pipe section extending into the low-heat area. The other end of the heat dissipation pipe passes through the high-heat section to form a high-heat pipe section extending into the high-heat area. The high-heat area and the low-heat area are connected by heat dissipation channels. The lamp housing has a high-heat enclosure section surrounding a high-heat zone, and the high-heat enclosure section is provided with a high-heat air vent; the lamp housing also has a low-heat enclosure section surrounding a low-heat zone, and the low-heat enclosure section is provided with a low-heat air vent.
[0007] Furthermore, the high-heat pipe section passes through the high-heat section and abuts against the high-heat section, thus connecting with the high-heat section as a whole.
[0008] Furthermore, the low-heat pipe section passes through the low-heat section, the low-heat pipe section is fitted with a heat insulation ring, and the low-heat pipe section is heat-insulated from the low-heat section through the heat insulation ring.
[0009] Furthermore, a horn is formed at the end of the high-heat pipe section, the horn forming an flared cavity, one end of the horn being connected to the end of the high-heat pipe section, and the other end of the horn being open and arranged in a flared shape.
[0010] Furthermore, the heat insulation interval is filled with a heat insulation layer, which abuts against the high-heat section and the low-heat section respectively, so as to insulate the high-heat section from the heat insulation section.
[0011] Furthermore, a lower inclined plate is formed on the high-heat enclosure section, the upper end of the lower inclined plate is connected to the high-heat enclosure section, and the lower end of the lower inclined plate is inclined downwards and offset from the high-heat enclosure section; the lower inclined plate and the high-heat enclosure section enclose and form a downwind area with a bottom opening, and the high-heat air outlet is formed in the downwind area.
[0012] Furthermore, an upper inclined plate is formed on the low-heat enclosure section, the lower end of the upper inclined plate is connected to the low-heat enclosure section, and the upper end of the upper inclined plate is inclined upward and offset from the low-heat enclosure section; the upper inclined plate and the low-heat enclosure section enclose and form an upwind area with a top opening, and the low-heat air outlet is formed in the upwind area.
[0013] Furthermore, the lower partition has two hollow areas, which are respectively connected to the high-heat area and the low-heat area; the lower sections of the two heat sinks are respectively embedded in the two hollow areas and respectively abut against the lamp panel.
[0014] Furthermore, the LED light source includes a substrate fixed on a lamp plate, and the substrate is provided with a ring-shaped enclosure dam, which encloses and forms an enclosure area, in which a plurality of LED light emitters are provided; The enclosed area is provided with a ring-shaped light-transmitting dam, which is connected to the substrate. The light-transmitting dam divides the enclosed area into a central area and a ring-shaped area. The ring-shaped area is formed between the light-transmitting dam and the enclosed dam. The light-transmitting dam encloses and forms the central area, and multiple LED light emitters are formed in the central area. The central region is filled with a first fluorescent adhesive, which encapsulates multiple LED light emitters. The annular region is filled with a second fluorescent adhesive, the composition of which differs from that of the first fluorescent adhesive.
[0015] Furthermore, along the direction deviating from the substrate, the enclosing dam and the light-transmitting dam are respectively arranged outward at an angle, and the angle of inclination of the enclosing dam is greater than the angle of inclination of the light-transmitting dam, so that the width of the annular area gradually increases.
[0016] Compared with the prior art, the LED lamp with flowing heat dissipation provided by the present invention conducts the heat generated by the power supply to the low-heat and high-heat sections through the upper section during operation, and conducts the heat generated by the lamp board to the low-heat and high-heat sections through the lower section. The high-heat section is provided with multiple heat dissipation fins, so the heat conduction efficiency of the high-heat section is greater than that of the low-heat section, so that the heat of the high-heat area is greater than that of the low-heat area. There is a heat difference between the high-heat and low-heat areas. Through the heat dissipation channels of the high-heat air vent, the low-heat air vent, and the heat dissipation pipe, the air flows between the high-heat and low-heat areas to achieve the effect of flowing heat dissipation, which greatly improves the heat dissipation effect. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the LED lamp with flow-type heat dissipation provided by the present invention; Figure 2 This is a front view schematic diagram of the heat sink provided by the present invention; Figure 3 This is a front view schematic diagram of the LED light source provided by the present invention; Figure 4 This is a partial internal schematic diagram of the heat dissipation area provided by the present invention. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0019] The implementation of the present invention will be described in detail below with reference to specific embodiments.
[0020] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0021] Reference Figure 1-4 The image shows a preferred embodiment of the present invention.
[0022] The LED lamp with fluidized heat dissipation includes a lamp housing 100, which has an inner cavity. Along the top-to-bottom direction of the inner cavity, there are upper partitions 112 and lower partitions 113. The upper partitions 112 and lower partitions 113 are arranged at intervals, dividing the inner cavity into a power supply area 101, a heat dissipation area, and a light-emitting area 103. The power supply area 101, the heat dissipation area, and the light-emitting area 103 are arranged sequentially from top to bottom.
[0023] The power supply area 101 is equipped with a power supply 200, and the light-emitting area 103 is equipped with a lamp board 600. The lamp board 600 is equipped with multiple downward-facing LED light sources 500. The bottom of the light-emitting area 103 is covered with a light-transmitting cover 104. The light emitted by the LED light sources 500 shines outward through the light-transmitting cover 104. The power supply 200 is electrically connected to the lamp board 600.
[0024] The heat dissipation area is provided with two heat sinks 300 that are spaced apart and facing each other. The heat sinks 300 pass through the upper partition 112 and extend into the light source area, forming an upper section 301 that abuts against the power supply 200. The lower part of the heat sink 300 forms a lower section 302 that abuts against the lamp panel 600.
[0025] The heat dissipation area includes a high-heat area 111 and a low-heat area 102. The high-heat area 111 and the low-heat area 102 are arranged in isolation from each other to form a heat insulation interval 115. The middle part of one radiator 300 is exposed in the high-heat area 111 to form a high-heat section 304, and the middle part of another radiator 300 is exposed in the low-heat area 102 to form a low-heat section 303. The heat insulation interval 115 is formed between the high-heat section 304 and the low-heat section 303. The high-heat section 304 is provided with a plurality of heat dissipation fins 114, which are arranged at intervals. The heat dissipation area is equipped with heat dissipation pipes, and heat dissipation channels are arranged through the heat dissipation pipes. The middle part of the heat dissipation pipe is placed in the heat insulation interval 115. One end of the heat dissipation pipe passes through the low heat section 303 to form a low heat pipe section 402 extending into the low heat area 102. The other end of the heat dissipation pipe passes through the high heat section 304 to form a high heat pipe section 403 extending into the high heat area 111. The high heat area 111 and the low heat area 102 are connected by heat dissipation channels.
[0026] The lamp housing 100 has a high-heat enclosure section 118 enclosing the high-heat zone 111, and the high-heat enclosure section 118 is provided with a high-heat air vent 106; the lamp housing 100 has a low-heat enclosure section 117 enclosing the low-heat zone 102, and the low-heat enclosure section 117 is provided with a low-heat air vent 105.
[0027] The aforementioned flowing heat dissipation LED lamp, during operation, the heat generated by the power supply 200 is conducted through the upper section 301 to the low-heat section 303 and the high-heat section 304, and the heat generated by the lamp board 600 is conducted through the lower section 302 to the low-heat section 303 and the high-heat section 304. The high-heat section 304 is provided with multiple heat dissipation fins 114, so the heat conduction efficiency of the high-heat section 304 is greater than that of the low-heat section 303, so that the heat of the high-heat zone 111 is greater than that of the low-heat zone 102, and there is a heat difference between the high-heat zone 111 and the low-heat zone 102. Through the heat dissipation channels of the high-heat air vent 106, the low-heat air vent 105 and the heat dissipation pipe, the air flows between the high-heat zone 111 and the low-heat zone 102 to achieve the effect of flowing heat dissipation, which greatly improves the heat dissipation effect.
[0028] Of course, depending on the actual situation, the air in the high-heat zone 111, the air in the low-heat zone 102, and the outside air can form diverse flows, which can flow from the high-heat air outlet 106 to the low-heat air outlet 105, or other flow modes can exist. The main goal is to achieve air flow, which can improve the heat dissipation effect.
[0029] As an extended embodiment, the high-heat pipe section 403 passes through the high-heat section 304 and abuts against the high-heat section 304, and is connected to the high-heat section 304 as a whole. In this way, the heat dissipation pipe can also be integrated with the high-heat section 304, increasing the heat dissipation effect of the high-heat section 304, increasing the heat of the high-heat zone 111, and increasing airflow.
[0030] As an extended embodiment, the low-heat pipe section 402 passes through the low-heat section 303, and the low-heat pipe section 402 is fitted with a heat insulation ring 401. The low-heat pipe section 402 is heat-insulated from the low-heat section 303 through the heat insulation ring 401. With the heat-insulated arrangement between the heat dissipation pipe and the low-heat section 303, no heat conduction occurs. Therefore, even after the heat dissipation pipe connects the high-heat zone 111 and the low-heat zone 102, a temperature difference still exists between the high-heat zone 111 and the low-heat zone 102.
[0031] As an extended embodiment, a horn tube 404 is formed at the end of the high-heat pipe section 403. The horn tube 404 surrounds and forms an flared mouth. One end of the horn tube 404 is connected to the end of the high-heat pipe section 403, and the other end of the horn tube 404 is open and arranged in a flared shape.
[0032] In this way, by arranging the horn tube 404, the heat dissipation of the high-heat section 304 can be increased, and the heat of the high-heat zone 111 can be increased. Moreover, during the air flow, it is convenient for the air in the high-heat zone 111 to enter the heat dissipation channel and then flow to the low-heat zone 102.
[0033] As an extended embodiment, the heat insulation interval 115 is filled with a heat insulation layer, which abuts against both the high-heat section 304 and the low-heat section 303 to insulate the high-heat section 304 from the heat insulation section. The heat insulation layer is used to heat-insulate the high-heat section 304 and the low-heat section 303, creating a temperature difference between the high-heat zone 111 and the low-heat zone 102 to facilitate airflow.
[0034] As an extended embodiment, a lower inclined plate 110 is formed on the high-heat enclosure section 118. The upper end of the lower inclined plate 110 is connected to the high-heat enclosure section 118, and the lower end of the lower inclined plate 110 is inclined downward and offset from the high-heat enclosure section 118. The lower inclined plate 110 and the high-heat enclosure section 118 enclose and form a downwind area 108 with a bottom opening. A high-heat air outlet 106 is formed in the downwind area 108.
[0035] This allows external air to enter the high-heat zone 111 through the high-heat air inlet 106 in the downwind zone 108, and then enter the low-heat zone 102 through the heat dissipation duct, thus enhancing airflow.
[0036] As an extended embodiment, an upper inclined plate 109 is formed on the low-heat enclosure section 117, the lower end of the upper inclined plate 109 is connected to the low-heat enclosure section 117, and the upper end of the upper inclined plate 109 is inclined upward and offset from the low-heat enclosure section 117; the upper inclined plate 109 and the low-heat enclosure section 117 enclose and form an upwind area 107 with a top opening, and a low-heat air vent 105 is formed in the upwind area 107.
[0037] The top opening of the upper air vent faces upward, and the bottom opening of the lower air vent faces downward. This arrangement of the upper and lower air vents facilitates the flow of external air between the high-temperature air vent 106 and the low-temperature air vent 105.
[0038] As an extended embodiment, the lower partition 113 has two hollow areas, which respectively connect to the high-heat area 111 and the low-heat area 102; the lower sections 302 of the two heat sinks 300 are respectively embedded in the two hollow areas and abut against the lamp panel 600. This facilitates the installation of the heat sinks 300 and the heat conduction between the lower sections 302 and the lamp panel 600.
[0039] As an extended embodiment, the LED light source 500 includes a substrate 501 fixed on the lamp plate 600. The substrate 501 is provided with a ring-shaped enclosure dam 502, which encloses and forms an enclosure area. A plurality of LED light emitters 505 are provided in the enclosure area. The enclosed area is provided with a ring-shaped light-transmitting dam 506. The light-transmitting dam 506 is connected to the substrate 501. The light-transmitting dam 506 divides the enclosed area into a central area 504 and a ring-shaped area 503. The ring-shaped area 503 is formed between the light-transmitting dam 506 and the enclosing dam 502. The light-transmitting dam 506 encloses and forms the central area 504. Multiple LED light emitters 505 are formed in the central area 504. The central region 504 is filled with a first fluorescent adhesive, which encapsulates multiple LED light emitters 505. The annular region 503 is filled with a second fluorescent adhesive, and the composition of the first fluorescent adhesive is different from that of the second fluorescent adhesive.
[0040] The light emitted by the LED light source 505 partially passes through the first phosphor and shines outward, while part of the light shines outward through the optical fiber after passing through the light-transmitting dam 506 and the second phosphor. This achieves multiple fluorescence excitations of the light, enabling diverse requirements for the outward-shielded light. The cost of the first and second phosphors can be matched according to the actual application environment of the LED lighting fixture.
[0041] As an extended embodiment, along the direction offset from the substrate 501, the enclosing dam 502 and the light-transmitting dam 506 are respectively arranged outward at an angle, with the angle of inclination of the enclosing dam 502 being greater than that of the light-transmitting dam 506, so that the width of the annular region 503 gradually increases. In this way, the width of the annular region 503 is increased so that more light irradiating through the second phosphor can be emitted outward.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A flow-type heat dissipation LED lamp, characterized in that, The lamp includes a lamp housing with an inner cavity. Along the inner cavity from top to bottom, an upper partition and a lower partition are respectively provided in the inner cavity. The upper partition and the lower partition are arranged at intervals to divide the inner cavity into a power supply area, a heat dissipation area and a light-emitting area. The power supply area, heat dissipation area and light-emitting area are arranged sequentially from top to bottom. The power supply area is equipped with a power supply, the light-emitting area is equipped with a lamp board, the lamp board is equipped with multiple downward-facing LED light sources, the bottom of the light-emitting area is covered with a light-transmitting cover, and the light emitted by the LED light sources shines outward through the light-transmitting cover. The power supply is electrically connected to the lamp board. The heat dissipation area is provided with two heat sinks spaced apart and facing each other. The heat sinks pass through the upper partition and extend into the light source area, forming an upper section that abuts against the power supply. The lower part of the heat sink forms a lower section that abuts against the lamp plate. The heat dissipation area includes a high-heat area and a low-heat area, which are isolated from each other to form a heat insulation interval; the middle part of one heat sink is exposed in the high-heat area to form a high-heat section, and the middle part of another heat sink is exposed in the low-heat area to form a low-heat section, with the heat insulation interval between the high-heat section and the low-heat section; the high-heat section is provided with multiple heat dissipation fins, which are arranged at intervals. The heat dissipation area is provided with heat dissipation pipes, and heat dissipation channels are arranged through the heat dissipation pipes. The middle part of the heat dissipation pipes is placed in the heat insulation interval. One end of the heat dissipation pipe passes through the low-heat section to form a low-heat pipe section extending into the low-heat area. The other end of the heat dissipation pipe passes through the high-heat section to form a high-heat pipe section extending into the high-heat area. The high-heat area and the low-heat area are connected by heat dissipation channels. The lamp housing has a high-heat enclosure section surrounding a high-heat zone, and the high-heat enclosure section is provided with a high-heat air vent; the lamp housing also has a low-heat enclosure section surrounding a low-heat zone, and the low-heat enclosure section is provided with a low-heat air vent.
2. The LED lighting fixture with flow-type heat dissipation as described in claim 1, characterized in that, The high-heat pipe section passes through the high-heat section and abuts against the high-heat section, thus forming a single unit with the high-heat section.
3. The LED lighting fixture with flow-type heat dissipation as described in claim 2, characterized in that, The low-heat pipe section passes through the low-heat section, and the low-heat pipe section is fitted with a heat insulation ring. The low-heat pipe section is heat-insulated from the low-heat section through the heat insulation ring.
4. The LED lamp with flow-type heat dissipation as described in claim 2, characterized in that, The end of the high-heat pipe section is formed with a flared tube, which encloses an flared cavity. One end of the flared tube is connected to the end of the high-heat pipe section, and the other end of the flared tube is open and arranged in a flared shape.
5. The LED luminaire with fluidized heat dissipation as described in any one of claims 1 to 4, characterized in that, The heat insulation interval is filled with a heat insulation layer, which abuts against the high-heat section and the low-heat section respectively, so as to insulate the high-heat section from the heat insulation section.
6. The LED luminaire with flow-type heat dissipation as described in any one of claims 1 to 4, characterized in that, A lower inclined plate is formed on the high-heat enclosure section. The upper end of the lower inclined plate is connected to the high-heat enclosure section, and the lower end of the lower inclined plate is inclined downwards and offset from the high-heat enclosure section. The lower inclined plate and the high-heat enclosure section enclose a downwind area with a bottom opening, and the high-heat air outlet is formed in the downwind area.
7. The LED lighting fixture with flow-type heat dissipation as described in claim 6, characterized in that, An upper inclined plate is formed on the low-heat enclosure section, the lower end of the upper inclined plate is connected to the low-heat enclosure section, and the upper end of the upper inclined plate is inclined upward and offset from the low-heat enclosure section; the upper inclined plate and the low-heat enclosure section enclose and form an upwind area with a top opening, and the low-heat air outlet is formed in the upwind area.
8. The LED luminaire with fluidized heat dissipation as described in any one of claims 1 to 4, characterized in that, The lower partition has two hollow areas, which are respectively connected to the high-heat area and the low-heat area; the lower sections of the two heat sinks are respectively embedded in the two hollow areas and respectively abut against the lamp panel.
9. The LED luminaire with flow-type heat dissipation as described in any one of claims 1 to 4, characterized in that, The LED light source includes a substrate fixed on a lamp plate, and a ring-shaped enclosure dam is protruding on the substrate. The enclosure dam encloses and forms an enclosure area, and multiple LED light emitters are provided in the enclosure area. The enclosed area is provided with a ring-shaped light-transmitting dam, which is connected to the substrate. The light-transmitting dam divides the enclosed area into a central area and a ring-shaped area. The ring-shaped area is formed between the light-transmitting dam and the enclosed dam. The light-transmitting dam encloses and forms the central area, and multiple LED light emitters are formed in the central area. The central region is filled with a first fluorescent adhesive, which encapsulates multiple LED light emitters. The annular region is filled with a second fluorescent adhesive, the composition of which differs from that of the first fluorescent adhesive.
10. The LED lighting fixture with flow-type heat dissipation as described in claim 9, characterized in that, Along a direction deviating from the substrate, the enclosing dam and the light-transmitting dam are respectively arranged outward at an angle, with the angle of inclination of the enclosing dam being greater than that of the light-transmitting dam, so that the width of the annular area gradually increases.