CN210424831U - Thermoelectric power generation lamp - Google Patents
Thermoelectric power generation lamp Download PDFInfo
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- CN210424831U CN210424831U CN201921422855.8U CN201921422855U CN210424831U CN 210424831 U CN210424831 U CN 210424831U CN 201921422855 U CN201921422855 U CN 201921422855U CN 210424831 U CN210424831 U CN 210424831U
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- collecting plate
- thermoelectric power
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Abstract
The utility model discloses a thermoelectric power generation lamp, which comprises a heat collecting plate, at least one thermoelectric power generation sheet, a radiator and a lighting module; the heat collecting plate is used for being fixed on an external heat source, a plurality of protrusions are arranged on one side, opposite to the external heat source, of the heat collecting plate, and the heat collecting plate is connected with the external heat source through the protrusions to form a heat collecting surface; the radiator is fixed on the heat collecting plate. The beneficial effects of the utility model reside in that: the thermoelectric power generation piece is arranged on an external heat source through the heat collection plate, thermoelectric conversion is realized by utilizing the temperature difference between the cold end and the hot end of the thermoelectric power generation piece, and finally power is supplied to the lighting module; and the protrusion arranged on the heat collecting plate reduces the contact area between the heat collecting plate and an external heat source, so that the actual working temperature of the thermoelectric power generation piece is always kept in a proper range, and the lamp can continuously and safely work.
Description
Technical Field
The utility model relates to a LED lighting technology field, concretely relates to thermoelectric generation lamps and lanterns.
Background
The current LED lamps all need an external power supply as a power source so as to realize illumination. However, under the condition of no power supply, such as outdoors, extremely remote areas, working environments with special requirements, and the like, the places or the use scenes may not be limited by solar energy, wind energy collecting devices, batteries and the like, and the LED lamp cannot play a role of illumination due to no power supply, so that the life of people is inconvenient.
In addition, in the present day that world energy is increasingly deficient, the situation of electric power resource shortage generally exists, and especially in the peak period of power consumption in summer, the electric power resource is more seriously insufficient.
In the face of the above current situation, a new lighting device is needed, which can generate electricity for lighting by collecting heat, so as to realize effective utilization of energy.
Disclosure of Invention
The utility model provides a thermoelectric generation lamps and lanterns need not external power source, improves the utilization ratio of resource.
For realizing the above technical effect, the technical scheme of the utility model as follows:
a thermoelectric power generation lamp comprises a heat collection plate, at least one thermoelectric power generation sheet, a radiator and an illumination module;
the heat collecting plate is used for being fixed on an external heat source, a plurality of protrusions are arranged on one side, opposite to the external heat source, of the heat collecting plate, and the heat collecting plate is connected with the external heat source through the protrusions to form a heat collecting surface;
the heat radiator is fixed on the heat collecting plate, the thermoelectric generation piece is arranged between the heat radiator and the heat collecting plate, and two side surfaces of the thermoelectric generation piece are respectively attached to the heat radiator and the heat collecting plate;
the lighting module is arranged on one side of the radiator; the thermoelectric generation piece is electrically connected with the lighting module.
Further, the protrusions are arranged in a matrix with each other.
Further, the protrusions are rectangular protrusions arranged in parallel with each other.
Furthermore, the outer surface of one side, attached to the external heat source, of the protrusion is matched with the outer surface of the external heat source in shape.
Further, the spacing distance between the adjacent protrusions is 5-20 mm.
Further, heat conducting layers are respectively arranged between the hot end of the thermoelectric generation piece and the heat collecting plate and between the cold end of the thermoelectric generation piece and the radiator.
Furthermore, the lighting module comprises a voltage stabilizing circuit, the input end of the voltage stabilizing circuit is electrically connected with the thermoelectric generation sheet, and the output end of the voltage stabilizing circuit is electrically connected with the lighting module.
Furthermore, the solar heat collector also comprises a temperature measuring device, and the temperature measuring device is arranged on the heat collecting plate.
Further, the external heat source includes a range or a heat pipe.
Furthermore, a plurality of mounting through holes are formed in the opposite positions of the radiator and the heat collecting plate, and the radiator and the heat collecting plate are fixedly connected with the external heat source by means of matching of the mounting through holes and screws.
The beneficial effects of the utility model reside in that: the thermoelectric power generation piece is arranged on an external heat source through the heat collection plate, thermoelectric conversion is realized by utilizing the temperature difference between the cold end and the hot end of the thermoelectric power generation piece, and finally power is supplied to the lighting module; and the protrusion arranged on the heat collecting plate reduces the contact area between the heat collecting plate and an external heat source, so that the actual working temperature of the thermoelectric power generation piece is always kept in a proper range, and the lamp can continuously and safely work.
Drawings
Fig. 1 is a structural explosion diagram of a thermoelectric generation lamp provided in an embodiment of the present invention.
Fig. 2 is a schematic structural view of a thermoelectric generation lamp provided in an embodiment of the present invention.
The specific drawings are identified as follows: 1-heat collecting plate, 2-thermoelectric power generation sheet, 3-radiator, 4-lighting module, 5-projection and 6-installation through hole.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
The present embodiment provides a thermoelectric generation lamp, as shown in fig. 1-2, comprising a heat collecting plate 1, at least one thermoelectric generation sheet 2, a heat sink 3 and a lighting module 4;
the heat collecting plate 1 is used for being fixed on an external heat source, a plurality of protrusions 5 are arranged on one side, opposite to the external heat source, of the heat collecting plate 1, and the heat collecting plate 1 is connected with the external heat source through the protrusions 5 to form a heat collecting surface;
the radiator 3 is fixed on the heat collecting plate 1, the thermoelectric generation piece 2 is arranged between the radiator 3 and the heat collecting plate 1, and two side surfaces of the thermoelectric generation piece 2 are respectively attached to the radiator 3 and the heat collecting plate 1;
the lighting module 4 is arranged on one side of the radiator 3; the thermoelectric generation piece 2 is electrically connected with the lighting module 4.
Wherein, the heat collecting plate 1 is used for gathering the heat of external heat source to on transmitting thermoelectric generation piece 2 through heat-conduction, thermoelectric generation piece 2 utilizes its both ends to have the difference in temperature and the electricity generation, realizes the conversion of heat energy to electric energy, and the electric energy that thermoelectric generation piece 2 produced provides electric power for lighting module 4, thereby realizes that this lamps and lanterns also can realize the illumination under the condition of no external power source power supply.
Specifically, when the temperature of the heat source is higher than the allowable operating temperature of the thermoelectric generation piece 2 by more than 10 ℃ in the process of collecting heat, the heat collection plate 1 may cause the operation of the thermoelectric generation piece 2 to fail. In order to avoid the situation that the thermoelectric generation piece 2 fails to work, a plurality of protrusions 5 are arranged on one side of the heat collection plate 1, which is opposite to an external heat source, and the heat collection plate 1 is connected with the external heat source through the protrusions 5 to form a heat collection surface. The protrusion 5 reduces a contact area between the heat collecting plate 1 and an external heat source, so that the temperature received by the thermoelectric generation piece 2 is always maintained within a range allowed by the thermoelectric generation piece 2, and the thermoelectric generation piece 2 is ensured to continuously and normally operate.
In addition, in order to uniformly transfer the heat collected by the heat collecting plate 1 to the thermoelectric generation element 2, the protrusions 5 are uniformly arranged on the heat collecting plate 1.
The heat radiator 3 is fixed on the heat collecting plate 1, the thermoelectric generation piece 2 is arranged between the heat radiator 3 and the heat collecting plate 1, and the cold end and the hot end of the thermoelectric generation piece 2 are respectively attached to the heat radiator 3 and the heat collecting plate 1. Wherein, radiator 3's effect lies in dispelling the heat to the cold junction of thermoelectric generation piece 2, reaches the purpose of cooling, makes the difference in temperature between the cold junction of thermoelectric generation piece 2 and the hot junction increase, and the difference in temperature is big more, and the electric power of output is just big more.
In one embodiment, the protrusions 5 are arranged in a matrix with respect to each other. Specifically, the arrangement of the protrusions 5 may be a square arrangement, a circular arrangement, a trapezoidal arrangement, a rectangular arrangement, a triangular arrangement, or a combination of any two or any three of the above arrangements. The specific arrangement of the protrusions 5 may be set according to actual needs, and is not limited herein.
In another embodiment, the protrusions 5 are rectangular protrusions arranged parallel to each other. The heat collected by the heat collecting plate 1 is uniformly transferred to the thermoelectric generation piece 2 through the rectangular protrusions 5 arranged in parallel, so that the power generation stability of the thermoelectric generation piece 2 is ensured.
In other embodiments, the outer surface of the side of the protrusion 5 that engages an external heat source matches the shape of the outer surface of the external heat source. The outer surface of the protrusion 5 is adapted to the outer surface of the external heat source in shape, so that the heat collecting plate 1 can be better attached to the external heat source, and the heat conduction efficiency is increased.
In addition, the interval between the adjacent protrusions 5 is 5 to 20mm in consideration of the difference in the temperature of the heat source and the allowable operating temperature of the thermoelectric generation element 2. When the temperature of the heat source reaches above 300 ℃, the spacing distance between the adjacent protrusions 5 can be correspondingly set, and the larger the temperature of the heat source is, the larger the spacing between the adjacent protrusions 5 is. In the present embodiment, the interval between the adjacent protrusions 5 may be selected to be 5mm or 12.5mm or 20 mm.
The selection of the spacing distance between the adjacent protrusions 5 can be performed according to practical situations, and is not limited herein.
Further, in order to reduce the loss of heat transfer and improve the power generation efficiency of the thermoelectric generation sheet 2, heat conduction layers are respectively arranged between the hot end of the thermoelectric generation sheet 2 and the heat collection plate 1, and between the cold end of the thermoelectric generation sheet 2 and the radiator 3. Specifically, the heat conducting layer may be a heat conducting silicone grease, a heat conducting pad, or other heat conducting objects, which is not limited herein.
In an embodiment, since the voltage operating range of the LED is wide and the voltage is relatively unstable, the thermoelectric generation chip 2 is in an unstable operating state, which is likely to damage the thermoelectric generation chip 2. In order to adapt the output of the thermoelectric generation piece 2 to the wide range of LED working voltage, a voltage stabilizing circuit can be arranged in the lighting module 4, and the output of the thermoelectric generation piece 2 is subjected to voltage change through the voltage stabilizing circuit. For example, when the output of thermoelectric generation piece 2 is less than the operating voltage of LED, thermoelectric generation piece 2 steps up through voltage boost stabilizing circuit to make thermoelectric generation piece 2 be in stable operating condition, guarantee that thermoelectric generation piece 2 can last normal work. Specifically, the input end of the voltage stabilizing circuit is electrically connected with the thermoelectric generation piece 2, and the output end of the voltage stabilizing circuit is electrically connected with the lighting module 4.
In another embodiment, the heat collecting plate further comprises a temperature measuring device, and the temperature measuring device is arranged on the heat collecting plate 1. The temperature measuring device can enable a user to know the change of the heat source problem in real time so as to control the temperature of the heat source and avoid safety accidents in the using process.
Additionally, the external heat source may include a range or a heat pipe, etc. In the outdoor, extremely remote areas and special working environments, the power generation lamp can realize illumination by using heat sources in the forms of fire sources, heat pipelines, stoves and the like in the illumination requirements.
In other embodiments, the heat sink 3 and the heat collecting plate 1 are provided with a plurality of mounting through holes 6 at opposite positions, and the heat sink 3 and the heat collecting plate 1 are fixedly connected with an external heat source by the cooperation of the mounting through holes 6 and screws. Through the arrangement of the installation through holes 6, the lamp can be conveniently detached and replaced.
According to the above embodiment, the technical scheme adopted by the utility model is to provide a thermoelectric generation lamp, wherein the thermoelectric generation sheet 2 is arranged on an external heat source through the heat collecting plate 1, thermoelectric conversion is realized by utilizing the temperature difference between the cold end and the hot end of the thermoelectric generation sheet 2, and finally power is supplied to the lighting module 4, no external power supply is needed in the process, and the utilization rate of resources is improved; and the protrusion arranged on the heat collecting plate 1 reduces the contact area between the heat collecting plate 1 and an external heat source, so that the actual working temperature of the thermoelectric generation piece 2 is always kept in a proper range, and the lamp can continuously and safely work.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A thermoelectric power generation lamp is characterized by comprising a heat collection plate, at least one thermoelectric power generation sheet, a radiator and an illumination module;
the heat collecting plate is used for being fixed on an external heat source, a plurality of protrusions are arranged on one side, opposite to the external heat source, of the heat collecting plate, and the heat collecting plate is connected with the external heat source through the protrusions to form a heat collecting surface;
the heat radiator is fixed on the heat collecting plate, the thermoelectric generation piece is arranged between the heat radiator and the heat collecting plate, and two side surfaces of the thermoelectric generation piece are respectively attached to the heat radiator and the heat collecting plate;
the lighting module is arranged on one side of the radiator; the thermoelectric generation piece is electrically connected with the lighting module.
2. The thermoelectric power generation lamp as claimed in claim 1, wherein the protrusions are arranged in a matrix with respect to each other.
3. The thermoelectric power generation lamp as claimed in claim 2, wherein the protrusions are rectangular protrusions arranged in parallel with each other.
4. The thermoelectric power generation lamp as claimed in claim 1, wherein the shape of the outer surface of the protrusion on the side where the protrusion is attached to the external heat source is matched with the shape of the outer surface of the external heat source.
5. The thermoelectric power generation lamp as claimed in claim 4, wherein the distance between adjacent protrusions is 5-20 mm.
6. The thermoelectric power generation lamp according to claim 1, wherein heat conduction layers are respectively disposed between the hot end of the thermoelectric power generation sheet and the heat collection plate, and between the cold end of the thermoelectric power generation sheet and the heat sink.
7. The thermoelectric power generation lamp of claim 1, wherein the lighting module comprises a voltage stabilizing circuit, an input end of the voltage stabilizing circuit is electrically connected with the thermoelectric power generation chip, and an output end of the voltage stabilizing circuit is electrically connected with the lighting module.
8. The thermoelectric power generation lamp as claimed in any one of claims 1 to 7, further comprising a temperature measuring device, wherein the temperature measuring device is disposed on the heat collecting plate.
9. A thermoelectric generating light fixture as recited in claim 1, wherein said external heat source comprises a range or a heat pipe.
10. The thermoelectric power generation lamp as claimed in claim 1, wherein the heat sink and the heat collecting plate are provided with a plurality of mounting through holes at opposite positions, and the heat sink and the heat collecting plate are fixedly connected to the external heat source by the cooperation of the mounting through holes and screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422855.8U CN210424831U (en) | 2019-08-29 | 2019-08-29 | Thermoelectric power generation lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422855.8U CN210424831U (en) | 2019-08-29 | 2019-08-29 | Thermoelectric power generation lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210424831U true CN210424831U (en) | 2020-04-28 |
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ID=70365088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921422855.8U Active CN210424831U (en) | 2019-08-29 | 2019-08-29 | Thermoelectric power generation lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210424831U (en) |
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2019
- 2019-08-29 CN CN201921422855.8U patent/CN210424831U/en active Active
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