CN212361869U - Lighting device based on thermoelectric generation - Google Patents
Lighting device based on thermoelectric generation Download PDFInfo
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- CN212361869U CN212361869U CN202020736542.6U CN202020736542U CN212361869U CN 212361869 U CN212361869 U CN 212361869U CN 202020736542 U CN202020736542 U CN 202020736542U CN 212361869 U CN212361869 U CN 212361869U
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Abstract
The utility model provides a lighting apparatus based on thermoelectric generation, include: a lighting device heat dissipation structure; the cold end and the hot end of the temperature difference power generation module are respectively contacted with ambient air and the heat dissipation structure of the lighting equipment, and the electric energy is generated through cold-hot temperature difference; and the Internet of things communication module is connected with the temperature difference power generation module and draws electric energy. The utility model aims at utilizing the thermoelectric generation module to supply power to the communication module of the Internet of things, and the existing LED lamp does not need to be reformed; and because the power supply is not shared with the LED lamp, when the inherent power supply of the LED lamp breaks down, the normal work of the communication module of the Internet of things is not influenced, the equipment maintenance is reduced, the communication stability is improved, the problem that the existing LED lamp cannot be connected with objects is solved, and the problem of modification caused by additional installation of a module is also avoided.
Description
Technical Field
The utility model relates to the field of lighting technology, especially, relate to a lighting apparatus based on thermoelectric generation.
Background
A light Emitting diode (led) is a solid semiconductor device capable of converting electric energy into visible light, and can directly convert the electric energy into light, but still generates a large amount of heat due to the conversion efficiency during the electro-optical conversion process. At present, the electro-optic conversion efficiency of the LED for white light illumination is about 60 percent at most, and most of energy which is not converted into light is converted into heat. Since the LED device is still a semiconductor device, and the influence of the ambient temperature is large when the LED device works, and the electro-optic conversion efficiency and the lifetime of the LED device are directly influenced by an excessively high temperature, the power type LED device must dissipate heat.
On the other hand, the combination of the LED lamp and the internet of things technology is becoming more popular, and the current bottleneck problem is how to combine the internet of things communication module with the lamp. The thing allies oneself with communication module also needs the power supply demand, but if combine with lamps and lanterns power supply drive, must cause the influence to original drive function, efficiency and electrical safety. This not only results in a substantial increase in cost, but also directly affects the overall reliability of the product. In addition, as the existing lamp driving industry forms mature industries with various types and different functions, if the current situation is broken through, each type of driving is modified, and the industry chain is lack of power.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcoming of prior art, the utility model provides a lighting apparatus based on thermoelectric generation solves the technical problem of how current LED lamp supplies power for the communication module of false dress.
In order to achieve the above object, the utility model provides a lighting device based on thermoelectric generation, include: a lighting device heat dissipation structure; the cold end and the hot end of the temperature difference power generation module are respectively contacted with ambient air and the heat dissipation structure of the lighting equipment, and the electric energy is generated through cold-hot temperature difference; and the Internet of things communication module is connected with the temperature difference power generation module and draws electric energy.
In some embodiments of the present invention, the internet of things communication module includes: any one or combination of a plurality of NB-IoT communication module, LoRa communication module, eMTC communication module, Sigfox communication module and ZigBee communication module.
In some embodiments of the present invention, the lighting device further comprises: the voltage amplification system is connected with the temperature difference power generation module and is used for amplifying a voltage signal; the charging system is connected with the voltage amplification system and is used for converting the voltage signal into a voltage suitable for the power storage system; the electric power storage system is connected with the charging system, charges and is used for storing electric energy; the power storage system is connected with the Internet of things communication module and supplies power to the Internet of things communication module.
In some embodiments of the present invention, the thermoelectric generation module includes: a housing comprising a cold end in contact with ambient air and a hot end in contact with a heat sink structure of the lighting device; the cold end and the hot end are respectively connected with the metal sheet, and an anode leading-out end and a cathode leading-out end are led out; and a plurality of P-type semiconductors and N-type semiconductors are arranged in the clamping space between the metal sheets.
In some embodiments of the invention, the housing comprises a ceramic housing.
In some embodiments of the invention, the housing is coated with a waterproof material.
In some embodiments of the invention, the lighting device comprises a LED street lamp.
In some embodiments of the invention, the lighting device comprises a luminaire drive module; the Internet of things communication module is in communication connection with the lamp information acquisition interface of the lamp driving module.
As above, the utility model relates to a lighting device based on thermoelectric generation has following beneficial effect: the utility model aims at utilizing the thermoelectric generation module to supply power to the communication module of the Internet of things, and the existing LED lamp does not need to be reformed; and because the power supply is not shared with the LED lamp, when the inherent power supply of the LED lamp breaks down, the normal work of the communication module of the Internet of things is not influenced, the equipment maintenance is reduced, the communication stability is improved, the problem that the existing LED lamp cannot be connected with objects is solved, and the problem of modification caused by additional installation of a module is also avoided.
Drawings
Fig. 1 is a schematic structural diagram of a lighting device based on thermoelectric power generation according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a lighting device based on thermoelectric power generation in an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a thermoelectric power generation module according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a lighting device based on thermoelectric power generation in an embodiment of the present invention.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "above," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," and/or "comprising," when used in this specification, specify the presence of stated features, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions or operations are inherently mutually exclusive in some way.
Aiming at the problem that how to install a communication module in the field needs to be overcome, the LED lamp utilizes the current situation and the characteristic of heating and heat dissipation of the LED lamp during working, adds a thermoelectric generation structure in a heat dissipation part, and stores electric energy, thereby supplying power for an internet of things communication part. Therefore, the power supply separation of the Internet of things communication part and the original driving system is realized, the research and development cost, the design cost and the use cost of the existing Internet of things module in the lamp are reduced, and the system reliability is improved.
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions in the embodiments of the present invention are further described in detail through the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the module of the lighting device based on thermoelectric generation according to the present invention is schematically illustrated. The lighting apparatus 10 of the present embodiment includes a lighting apparatus heat dissipation structure, a thermoelectric generation module 11, and an internet of things communication module 12, which are not illustrated. The cold end and the hot end of the temperature difference power generation module 11 are respectively contacted with ambient air and the heat dissipation structure of the lighting equipment, and electric energy is generated through cold and hot temperature difference; the internet of things communication module 12 is connected with the thermoelectric generation module 11 and draws electric energy.
It should be noted that, in the existing LED lighting device, the communication module of the internet of things is not usually provided, and the objects cannot be connected with each other. If an internet of things communication module is added to the existing LED lighting device, how to supply power to the added module exists. It is generally conceivable to utilize the existing power supply of the LED lighting device to supply power to the add-on module, that is, to utilize the inherent power supply of the LED lamp to charge the communication module of the internet of things. However, the inherent power supply of the LED lamp needs to be modified in the aspects of power supply interface, voltage lifting module, etc., and the LED lamp needs to be disassembled and reassembled, which is not only high in cost but also very cumbersome. In addition, since the LED lamp and the communication module of the internet of things share one power source, when the power source fails (for example, in a lightning strike), the communication module of the internet of things is affected and cannot work.
The utility model effectively overcomes the problems in the prior art, and utilizes the thermoelectric generation module to supply power to the communication module of the Internet of things without reforming the existing LED lamp; and because the power supply is not shared with the LED lamp, when the inherent power supply of the LED lamp fails, the normal work of the communication module of the Internet of things is not influenced, the equipment maintenance is reduced, and the communication stability is improved.
In an optional implementation manner of this embodiment, the internet of things communication module may be any one or a combination of multiple kinds of NB-IoT communication module, LoRa communication module, eMTC communication module, Sigfox communication module, and ZigBee communication module, and this embodiment is not limited.
In an alternative implementation of the present embodiment, as shown in fig. 2, the lighting device 20 includes: the system comprises a lighting equipment heat dissipation structure 21, a thermoelectric generation module 22, a voltage amplification system 23, a charging system 24, an electric power storage system 25 and an internet of things communication module 26; the thermoelectric generation module 22 generates electric energy due to the temperature difference; the voltage amplification system 23 is connected with the temperature difference power generation module 22 and is used for amplifying voltage signals; the charging system 24 is connected with the voltage amplifying system 23 and is used for converting the voltage signal into a voltage suitable for the electric power storage system 25, namely converting the voltage signal into a voltage capable of charging the electric power storage system; the power storage system 25 is connected with the charging system 24, and the charging system 24 charges the power storage system 25; the power storage system 25 is connected with the internet of things communication module 26, so as to supply power to the internet of things communication module 26.
Specifically, the voltage amplification system 23 may employ a voltage amplifier, which is used for common multistage amplification of weak signals, and the cascade mode includes direct coupling, resistance-capacitance coupling, and transformer coupling, and requires high amplification factor, flat frequency response, and small distortion; the electrical storage system 25 employs a battery or other energy storage element.
It should be understood that the thermoelectric generation module only sends out the electric energy under the condition that produces the difference in temperature, because the utility model discloses a thermoelectric generation module is applied to lighting apparatus, consequently just is difficult to produce the difference in temperature under the inoperative condition of lighting apparatus, can't utilize thermoelectric generation. Therefore, the utility model discloses increased power storage module, solved this problem well, provide the electric energy for thing networking communication module under the condition that the thermoelectric generation module does not generate electricity.
In an alternative implementation manner of this embodiment, the structure of the thermoelectric generation module is as shown in fig. 3, and mainly includes a housing 30, where the housing 30 includes a cold end 31 contacting with ambient air and a hot end 32 contacting with a heat dissipation structure of the lighting device; the cold end 31 and the hot end 32 are respectively connected with a metal sheet 33, and a positive electrode leading-out end 34 and a negative electrode leading-out end 35 are led out; a plurality of P-type semiconductors 36 and N-type semiconductors 37 are disposed in the clamping space between the metal sheets 33.
It should be understood that the principle of thermoelectric power generation is that N, P two different types of semiconductor thermoelectric materials are connected in series through a flow deflector with good conductivity, when the hot end is heated, temperature difference is established at two ends of the device, and two carriers flow to the cold end to form a thermoelectric generator. The thermoelectric device generally comprises 18 groups to 128 groups of thermoelectric units which are repeatedly arranged, and the required power is achieved by connecting the thermoelectric units in series or in parallel. Thermoelectric power generation is based on the seebeck effect and has incomparable advantages compared with other power generation forms: the device is safe and reliable, long in service life, low in maintenance cost and free of noise; heat sources such as solar energy and radioactive isotope radiation can be utilized; can be suitable for any area with special climate. But its disadvantages are high cost and low efficiency.
Preferably, the thermoelectric generation module adopts a ceramic shell, the ceramic shell has the advantages of low thermal resistance, excellent heat conduction performance and the like, and compared with a shell made of a common material, the size of the lamp is more compact, the power density is improved, and the reliability of the device is improved; in addition, the ceramic shell has excellent thermal expansion coefficient, can save Mo sheets of the transition layer, saves labor and materials, reduces cost and the like.
In an optional implementation manner of this embodiment, the lighting device includes an LED street lamp. Compared with an indoor lamp, the LED street lamp is exposed to the external environment and is easily interfered by weather such as rainwater, so that the shell of the temperature difference heat dissipation module is preferably coated with a waterproof material in the embodiment, and the temperature difference power generation module is prevented from being affected with damp and damaged; the waterproof material includes, but is not limited to, an asphalt waterproof material, a rubber plastic waterproof material, a cement waterproof material, a metal waterproof material, and the like, and the present embodiment is not limited thereto.
In an optional implementation manner of the present embodiment, as shown in fig. 4, the lighting device includes a thermoelectric generation module 41, an internet of things communication module 42, and a lamp driving module 43; the communication module 42 of the internet of things is in communication connection with the lamp information collecting interface 44 of the lamp driving module 43, so that the lamp driving module 43 collects information, such as a lamp control instruction and external environment information, through the communication module 42 of the internet of things.
To sum up, the utility model provides a lighting device based on thermoelectric generation, which aims to utilize a thermoelectric generation module to supply power to an internet of things communication module without reforming the existing LED lamp; and because the power supply is not shared with the LED lamp, when the inherent power supply of the LED lamp breaks down, the normal work of the communication module of the Internet of things is not influenced, the equipment maintenance is reduced, the communication stability is improved, the problem that the existing LED lamp cannot be connected with objects is solved, and the problem of modification caused by additional installation of a module is also avoided. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A thermoelectric power generation-based lighting device, comprising:
a lighting device heat dissipation structure;
the cold end and the hot end of the temperature difference power generation module are respectively contacted with ambient air and the heat dissipation structure of the lighting equipment, and the electric energy is generated through cold-hot temperature difference;
and the Internet of things communication module is connected with the temperature difference power generation module and draws electric energy.
2. The thermoelectric power generation based lighting device as claimed in claim 1, wherein the internet of things communication module comprises: any one or combination of a plurality of NB-IoT communication module, LoRa communication module, eMTC communication module, Sigfox communication module and ZigBee communication module.
3. The thermoelectric power generation-based lighting device of claim 1, further comprising:
the voltage amplification system is connected with the temperature difference power generation module and is used for amplifying a voltage signal;
the charging system is connected with the voltage amplification system and is used for converting the voltage signal into a voltage suitable for the power storage system;
the electric power storage system is connected with the charging system, charges and is used for storing electric energy; the power storage system is connected with the Internet of things communication module and supplies power to the Internet of things communication module.
4. The thermoelectric power generation based illumination device according to claim 1, wherein the thermoelectric power generation module comprises:
a housing comprising a cold end in contact with ambient air and a hot end in contact with a heat sink structure of the lighting device;
the cold end and the hot end are respectively connected with the metal sheet, and an anode leading-out end and a cathode leading-out end are led out; and a plurality of P-type semiconductors and N-type semiconductors are arranged in the clamping space between the metal sheets.
5. The thermoelectric power generation-based lighting device of claim 4, wherein the housing comprises a ceramic housing.
6. The thermoelectric power generation-based lighting device of claim 4, wherein the housing is coated with a waterproof material.
7. The thermoelectric power generation based lighting device of claim 1, wherein the lighting device comprises an LED street lamp.
8. The thermoelectric power generation based lighting device of claim 1, wherein the lighting device comprises a luminaire driving module; the Internet of things communication module is in communication connection with the lamp information acquisition interface of the lamp driving module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020736542.6U CN212361869U (en) | 2020-05-07 | 2020-05-07 | Lighting device based on thermoelectric generation |
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| CN202020736542.6U CN212361869U (en) | 2020-05-07 | 2020-05-07 | Lighting device based on thermoelectric generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996195A (en) * | 2021-02-03 | 2021-06-18 | 浙江纳特智能网络工程有限公司 | Intelligent building lighting system based on thing networking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112996195A (en) * | 2021-02-03 | 2021-06-18 | 浙江纳特智能网络工程有限公司 | Intelligent building lighting system based on thing networking |
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