CN110715181A - Dull and stereotyped lamp of luminance adjustable LED - Google Patents
Dull and stereotyped lamp of luminance adjustable LED Download PDFInfo
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- CN110715181A CN110715181A CN201911033759.9A CN201911033759A CN110715181A CN 110715181 A CN110715181 A CN 110715181A CN 201911033759 A CN201911033759 A CN 201911033759A CN 110715181 A CN110715181 A CN 110715181A
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- lamp
- led
- heat dissipation
- led flat
- brightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
- F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a brightness-adjustable LED panel lamp, which comprises: the LED flat lamp comprises an LED flat lamp body and a brightness adjusting system which is electrically connected with the LED flat lamp body and is used for adjusting the brightness of the LED flat lamp body; wherein, the dull and stereotyped lamp body of LED includes: the LED lamp comprises a circuit board, a lamp frame and a light-transmitting lamp cover, wherein the circuit board is arranged between the light-transmitting lamp cover and the lamp frame and fixedly arranged on the lamp frame, and a plurality of LED lamp strips which are connected in series and in parallel are arranged on the circuit board. The invention aims to provide an LED flat lamp with adjustable brightness. Because the dull and stereotyped lamp of LED can produce a large amount of heats at the during operation to make the circuit board high temperature, and then can influence the life of the dull and stereotyped lamp of LED, through setting up a heat dissipation base plate, can in time take away the heat on the circuit board, thereby make the dull and stereotyped lamp work of this LED under lower temperature.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to an LED panel lamp with adjustable brightness.
Background
The LED flat lamp is a lighting product which is very commonly used, and is widely applied to illumination in offices, hotels, indoor public places and home, particularly kitchens, toilets and other places. The existing LED flat lamp only has a simple lighting function and cannot meet the requirement of people on light brightness.
Disclosure of Invention
Aiming at the problems, the invention provides the LED flat lamp with adjustable brightness.
The purpose of the invention is realized by adopting the following technical scheme:
the LED flat lamp with adjustable brightness is characterized by comprising an LED flat lamp body and a brightness adjusting system, wherein the brightness adjusting system is electrically connected with the LED flat lamp body and is used for adjusting the brightness of the LED flat lamp body;
wherein, the dull and stereotyped lamp body of LED includes: the LED lamp comprises a circuit board, a lamp frame and a light-transmitting lamp cover, wherein the circuit board is arranged between the light-transmitting lamp cover and the lamp frame and fixedly arranged on the lamp frame, and a plurality of LED lamp strips which are connected in series and in parallel are arranged on the circuit board.
In an optional embodiment, the LED flat panel lamp body further comprises: and the heat dissipation substrate is positioned between the circuit board and the lamp frame and is fixedly arranged on the lamp frame.
In an optional embodiment, one side of the heat dissipation substrate close to the circuit board is wavy, and a plurality of heat dissipation fins perpendicular to the heat dissipation substrate are arranged on the other side of the heat dissipation substrate.
In an optional embodiment, the heat dissipation substrate divides the accommodating cavity formed by the lamp frame and the light-transmitting lamp cover into an upper accommodating cavity and a lower accommodating cavity: an upper accommodating cavity and a lower accommodating cavity;
the side wall of the upper accommodating cavity is provided with a plurality of heat dissipation holes, and every two heat dissipation holes are arranged oppositely.
In an optional embodiment, the width of the heat sink is smaller than the aperture of the heat dissipation hole, and the height of the heat sink is not less than HmaxWherein H ismaxThe maximum height from the heat dissipation hole to the heat dissipation substrate.
In an alternative embodiment, the brightness adjustment system includes: the system comprises an environment monitoring module, a processing module, a control module and a reference brightness database;
the environment monitoring module is used for sensing indoor light intensity data and sending the indoor light intensity data to the processing module;
the processing module is used for processing the received light intensity data, comparing the received light intensity data with an optimal indoor light intensity threshold value prestored in the reference brightness database, and sending a comparison result to the control module;
the control module is connected with the LED panel lamp body and used for generating a corresponding control instruction according to the comparison result of the processing module so as to adjust the brightness of the LED panel lamp body.
In an alternative embodiment, the environmental monitoring module includes: the system comprises a plurality of sensor monitoring nodes and a sink node which are deployed indoors; the plurality of sensor monitoring nodes and the sink node form a wireless sensor network;
the sensor monitoring node is used for monitoring the light intensity at the position and sending monitoring data to the sink node; the sink node converges the monitoring data of each sensor monitoring node and sends the monitoring data to the processing module.
The invention has the beneficial effects that: the invention aims to provide an LED flat lamp with adjustable brightness. Because the dull and stereotyped lamp of LED can produce a large amount of heats at the during operation to make the circuit board high temperature, and then can influence the life of the dull and stereotyped lamp of LED, through setting up a heat dissipation base plate, can in time take away the heat on the circuit board, thereby make the dull and stereotyped lamp work of this LED under lower temperature.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a cross-sectional view of an LED flat lamp provided by an embodiment of the present invention;
fig. 2 is a frame structure diagram of a brightness adjusting system according to an embodiment of the present invention.
Reference numerals: the LED flat lamp comprises an LED flat lamp body 10, a brightness adjusting system 20, a circuit board 11, a lamp frame 12, a light-transmitting lampshade 13, an LED lamp strip 14, a heat dissipation substrate 15, a heat dissipation fin 16, a heat dissipation hole 17, an environment monitoring module 21, a processing module 22, a control module 23 and a reference brightness database 24.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1-2, an embodiment of the present invention provides an LED flat lamp with adjustable brightness, including: the LED flat lamp comprises an LED flat lamp body 10 and a brightness adjusting system 20 which is electrically connected with the LED flat lamp body 10 and used for adjusting the brightness of the LED flat lamp body 10.
Wherein, the LED flat lamp body 10 includes: the LED lamp comprises a circuit board 11, a lamp frame 12 and a light-transmitting lamp cover 13, wherein the circuit board 11 is arranged between the light-transmitting lamp cover 13 and the lamp frame 12 and is fixedly arranged on the lamp frame 12, and a plurality of LED lamp strips 14 which are connected in series and in parallel are arranged on the circuit board 11.
In an alternative embodiment, the LED flat lamp body 10 further includes a heat dissipating substrate 15, and the heat dissipating substrate 15 is located between the circuit board 11 and the lamp frame 12 and is fixedly mounted on the lamp frame 12.
In an alternative embodiment, one side of the heat dissipation substrate 15 close to the circuit board 11 is wavy, and the other side of the heat dissipation substrate 15 is provided with a plurality of heat dissipation fins 16 perpendicular to the heat dissipation substrate 15.
The heat dissipation substrate 15 divides the containing cavity formed by the lamp frame 12 and the light-transmitting lamp cover 13 into an upper containing cavity and a lower containing cavity: an upper accommodating cavity and a lower accommodating cavity;
a plurality of heat dissipation holes 17 are formed in the side wall of the upper accommodating cavity, and every two heat dissipation holes 17 are arranged oppositely. Every two heat dissipation holes are oppositely arranged, so that smooth air circulation is ensured.
Preferably, the width of the heat sink 16 is smaller than the diameter of the heat dissipation hole 17, and the height of the heat sinkNot less than HmaxWherein H ismaxThe maximum height from the heat dissipation hole to the heat dissipation substrate. The width of the radiating fins 16 is smaller than the aperture of the radiating holes 17, so that the problem that the air circulation is blocked due to the overlarge width of the radiating fins is avoided; the height of the heat sink is set not lower than HmaxSo that the air entering from the heat-radiating opening 17 can act on the heat-radiating fin 16 to cool the heat-radiating fin 16 as quickly as possible.
In an optional implementation manner, a small fan may be further disposed on the outer side wall of the upper accommodating cavity and near the heat dissipation hole 17 to increase the air circulation rate, so as to achieve heat dissipation and cooling as soon as possible.
In an alternative embodiment, the brightness adjustment system 20 includes: the environment monitoring module 21, the processing module 22, the control module 23 and the reference brightness database 24;
the environment monitoring module 21 is configured to sense indoor light intensity data and send the indoor light intensity data to the processing module 22;
the processing module 22 is configured to process the received light intensity data, compare the received light intensity data with an optimal indoor light intensity threshold value pre-stored in the reference brightness database 24, and send a comparison result to the control module 23; the optimum indoor light intensity threshold value pre-stored in the reference brightness database 24 may be set according to the actual requirement of the user.
The control module 24 is connected to the LED flat lamp body 10, and is configured to generate a corresponding control instruction according to the comparison result of the processing module to adjust the brightness of the LED flat lamp body 10.
In an alternative embodiment, the environmental monitoring module includes: the system comprises a plurality of sensor monitoring nodes and a sink node which are deployed indoors; the plurality of sensor monitoring nodes and the sink node form a wireless sensor network;
the sensor monitoring node is used for monitoring the light intensity at the position and sending monitoring data to the sink node; the sink node converges the monitoring data of each sensor monitoring node and sends the monitoring data to the processing module.
The invention has the beneficial effects that: the invention aims to provide an LED flat lamp with adjustable brightness. Because the dull and stereotyped lamp of LED can produce a large amount of heats at the during operation to make the circuit board high temperature, and then can influence the life of the dull and stereotyped lamp of LED, through setting up a heat dissipation base plate, can in time take away the heat on the circuit board, thereby make the dull and stereotyped lamp work of this LED under lower temperature.
In an optional implementation manner, the wireless sensor network is a clustering structure, the sensor monitoring nodes are clustered at the network starting time, so that a plurality of sensor monitoring nodes are determined to be cluster head nodes, and the rest of the sensor monitoring nodes are added to the cluster head node closest to the communication distance of the sensor monitoring nodes to become cluster member nodes of the corresponding cluster head node; the cluster member nodes monitor the light intensity of the positions of the cluster member nodes and send monitoring data to corresponding cluster head nodes, and the cluster head nodes gather the monitoring data sent by the cluster member nodes and send the monitoring data to the gathering nodes.
In an optional implementation manner, the cluster head node is selected from the sensor monitoring nodes according to a self-defined clustering mechanism, and specifically:
(1) determining alternative cluster head nodes:
after the deployment of the sensor monitoring nodes is completed, each sensor monitoring node performs information interaction with other sensor monitoring nodes and aggregation nodes in the neighborhood of the sensor monitoring node, and then judges whether the sensor monitoring node is qualified for selecting a cluster head according to the following formula, so that the sensor monitoring node becomes an alternative cluster head node:
in the formula, Nr(i) The number of sensor monitoring nodes in the sensing area of the sensor monitoring node i, R is the sensing radius of the sensor monitoring node i, R ismin(i)、Rmax(i) Maximum and minimum sensing radii, E, of sensor node i, respectively1Is the sensor node i if acting asCluster head node, estimate of energy consumed to communicate with said sink node, E0Is the initial energy value of the sensor node i, alpha is the path loss factor, d (i, A) is the spatial distance between the sensor node i and the sink node A, QthA preset threshold value which can participate in the election of the cluster head;
and when the sensor monitoring node i meets the formula, considering that the sensor monitoring node i is qualified for selecting the cluster head, adding the sensor monitoring node i into the alternative cluster head set, and traversing all the sensor monitoring nodes to obtain a set of all the alternative cluster head nodes.
(2) Determining the nodes of the real cluster head:
and selecting K sensor monitoring nodes with the maximum residual energy value from the set of the alternative cluster head nodes as real cluster head nodes, selecting the cluster head nodes with the closest communication radius to the residual sensor nodes, adding the cluster head nodes into the cluster head nodes to form corresponding cluster head nodes, and finally realizing clustering.
If the sensor monitoring node directly communicates with the sink node, on one hand, due to the influence of the transmission distance, the sensor monitoring node far away from the sink node may die too fast due to energy loss, thereby affecting the accuracy of the monitoring data of the wireless sensor network. According to the embodiment of the invention, the optional cluster head nodes capable of participating in cluster head election are firstly screened out from the sensor monitoring nodes through a self-defined clustering mechanism, and then the real cluster head node is selected out from the optional cluster head nodes. In the process of selecting the candidate cluster head nodes, the sensor monitoring nodes which are not qualified to participate in the election of the cluster head are screened out, the competition time of the cluster head can be reduced, and the sensor monitoring nodes with large residual energy and low energy loss can be more qualified to participate in the election of the cluster head nodes. Whether the sensor monitoring nodes are qualified for competition and selection of the cluster head node type is judged, the number of the sensor nodes in a sensing area of the sensor monitoring nodes, the distance between the sensor monitoring nodes and a sink node, the initial energy value of the sensor monitoring nodes and the estimated value of the required consumed energy if the sensor monitoring nodes are used as the cluster head nodes are considered, so that the competitiveness of the sensor monitoring nodes can be reflected in an all-around mode, the sensor monitoring nodes with high competitiveness are selected as alternative cluster head nodes, and the competition of the following real cluster head nodes is participated.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The LED flat lamp with adjustable brightness is characterized by comprising an LED flat lamp body and a brightness adjusting system, wherein the brightness adjusting system is electrically connected with the LED flat lamp body and is used for adjusting the brightness of the LED flat lamp body;
wherein, the dull and stereotyped lamp body of LED includes: the LED lamp comprises a circuit board, a lamp frame and a light-transmitting lamp cover, wherein the circuit board is arranged between the light-transmitting lamp cover and the lamp frame and fixedly arranged on the lamp frame, and a plurality of LED lamp strips which are connected in series and in parallel are arranged on the circuit board.
2. The LED flat lamp with adjustable brightness according to claim 1, wherein the LED flat lamp body further comprises: and the heat dissipation substrate is positioned between the circuit board and the lamp frame and is fixedly arranged on the lamp frame.
3. The LED flat lamp with adjustable brightness according to claim 2, wherein one side of the heat dissipation substrate, which is close to the circuit board, is wavy, and the other side of the heat dissipation substrate is provided with a plurality of heat dissipation fins perpendicular to the heat dissipation substrate.
4. The LED flat lamp with the adjustable brightness according to claim 3, wherein the accommodating cavity formed by the lamp frame and the light-transmitting lamp cover is divided into an upper accommodating cavity and a lower accommodating cavity by the heat dissipation substrate: an upper accommodating cavity and a lower accommodating cavity;
the side wall of the upper accommodating cavity is provided with a plurality of heat dissipation holes, and every two heat dissipation holes are arranged oppositely.
5. The LED flat lamp with adjustable brightness according to claim 4, wherein the width of the heat sink is smaller than the aperture of the heat dissipation hole, and the height of the heat sink is not less than HmaxWherein H ismaxThe maximum height from the heat dissipation hole to the heat dissipation substrate.
6. A dimmable LED flat panel lamp as claimed in claim 1, wherein said dimming system comprises: the system comprises an environment monitoring module, a processing module, a control module and a reference brightness database;
the environment monitoring module is used for sensing indoor light intensity data and sending the indoor light intensity data to the processing module;
the processing module is used for processing the received light intensity data, comparing the received light intensity data with an optimal indoor light intensity threshold value prestored in the reference brightness database, and sending a comparison result to the control module;
the control module is connected with the LED panel lamp body and used for generating a corresponding control instruction according to the comparison result of the processing module so as to adjust the brightness of the LED panel lamp body.
7. The LED flat lamp with adjustable brightness according to claim 5, wherein the environment monitoring module comprises: the system comprises a plurality of sensor monitoring nodes and a sink node which are deployed indoors; the plurality of sensor monitoring nodes and the sink node form a wireless sensor network;
the sensor monitoring node is used for monitoring the light intensity at the position and sending monitoring data to the sink node; the sink node converges the monitoring data of each sensor monitoring node and sends the monitoring data to the processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033759.9A CN110715181B (en) | 2019-10-28 | 2019-10-28 | Dull and stereotyped lamp of luminance adjustable LED |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033759.9A CN110715181B (en) | 2019-10-28 | 2019-10-28 | Dull and stereotyped lamp of luminance adjustable LED |
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| CN110715181A true CN110715181A (en) | 2020-01-21 |
| CN110715181B CN110715181B (en) | 2020-09-29 |
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| CN110715181B (en) | 2020-09-29 |
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