CN201976044U - A device for recovering and reusing heat energy from lighting facilities - Google Patents

Abstract

The utility model discloses a can be with device that lighting facilities's such as street lamp heat recovery recycled mainly comprises thermoelectric chip module and bowl, lamp body and circuit control system, accumulate facility and other necessary electronic components etc. of electric energy conversion for heat energy. The heat energy generated by the light source is used as the hot end, the lamp shell in contact with the atmosphere is used as the cold end, the upper end and the lower end of the thermoelectric chip module arranged between the reflecting cover and the lamp shell are respectively heated and cooled, so that a stable temperature difference is formed to generate electric energy, and the obtained electric energy is stored in an electricity storage facility through a voltage and current regulation chip, a circuit module and the like in a circuit control system or is directly input into a power supply circuit to effectively recycle the heat energy generated by the electric energy, so that the aim of further saving the electric energy is fulfilled.

Description

A device for recovering and reusing heat energy from lighting facilities

technical field

The utility model relates to a device that can recover and reuse heat energy of lighting facilities such as street lamps, in particular to an energy-saving and carbon-reducing device that can further recover and convert heat energy produced by a light source through a thermoelectric chip module into electric energy for reuse. device.

Background technique

Since Edison, the great American inventor, invented the electric light in the 19th century, human beings have enjoyed lights as bright as day in the dark. For more than one hundred years, electric lights have lit up every corner of the world. In addition to providing convenient lighting for human life, they have also greatly improved the efficiency of science and technology and the development of civilization; however, human beings also spent a lot of money in order to obtain lighting. Electricity has gradually led to the nightmare of energy crisis and environmental pollution.

Among all lighting products, except for LED (diode light-emitting lighting) and CCFL (cold cathode tube lighting) developed in recent years, most of them are lighting devices that consume a lot of power; such as incandescent lamps, halogen lamps, mercury lamps, and high-pressure sodium lamps , ceramic composite metal lamps, etc.; although LED lamps, fluorescent lamps, CCFL lamps, etc. are relatively power-saving, there are still many problems such as poor heat dissipation, serious light decay, and mercury pollution that have not been effectively resolved; moreover, if these lighting devices For outdoor lighting, such as road/street lights, projection lights, stadium or square lighting, or for lighting in factories and stores, there are still problems such as insufficient luminous flux and poor color rendering. Therefore, outdoor lighting, especially street lights, street lights or Most of the wall washer lamps used for advertising are still dominated by ceramic-metal lamps and high-pressure sodium lamps with relatively large power consumption.

Utility model content

The technical problem to be solved by the utility model is to provide a device that can recover and reuse the heat energy of lighting facilities such as street lamps, and its power consumption can be greatly improved, thereby achieving the purpose of saving energy and reducing environmental pollution.

In order to achieve the above-mentioned purpose, the utility model adopts an unprecedented heat recovery and reuse device for the lighting device, which properly collects and captures the heat energy produced by the lighting source, and then converts it into electric energy through the arranged thermoelectric chip module for continuous use. Since human beings have used incandescent light bulbs so far, the heat energy generated by the light bulbs has not been well utilized, but has been allowed to be wasted in vain. In fact, as early as 1823, German physicist Thomas Johann Seebeck's research had discovered that connecting two metals in a closed circuit and heating the joint would deflect a nearby compass. This shows that heat will cause current and/or electric energy in the circuit, that is, thermoelectricity; until now, with the advent of semiconductor technology, the ancient Seebeck effect has only begun to emerge; in P-type semiconductors, the cold end is the negative pole , while in the N-type semiconductor, the cold end is the positive pole; when the two semiconductors are connected with a conductor, such as a copper sheet, and heat energy is applied, then P can generate negative charges, and N can generate positive charges, resulting in a current It can flow from one end to the other, and as long as the temperature difference is maintained, electricity can be continuously generated.

Generally speaking, as mentioned above; artificial light sources, except cold light, have obvious thermal energy generation. In terms of indoor lighting, incandescent lamps are about to be banned by governments of various countries due to their high energy consumption, and are gradually replaced by lighting devices such as LEDs and CCFLs that consume less energy than fluorescent lamps that have been popular for decades, and have high brightness. In terms of outdoor lighting, especially street lamps; due to the need for larger luminous flux and better color rendering (Ra value) to improve safety, ceramic composite metal lamps or high-pressure sodium lamps ( HID) etc. Due to the high energy consumption, a large amount of heat energy is also generated at the same time; as far as the more advanced ceramic-metal lamps are concerned, the temperature around the bulb is still a high temperature of hundreds of degrees Celsius.

The utility model has completed the development of this device with great energy-saving and carbon-reducing benefits, which can save a large amount of electric energy without detracting from lighting efficiency.

The main feature of the utility model is to use the thermal energy generated by light sources such as road/street lamps, projection lamps, stadiums or square lighting lamps to properly collect and provide it to the thermoelectric chip module to directly convert the thermal energy into electrical energy, and then convert the obtained The electrical energy is stored in a circuit system composed of wires, rectifier/converter circuits, voltage regulators, diodes, protection circuits, ammeters, batteries, and other necessary electronic components, or directly transmitted to the power supply circuit or the mains network. Generate additional electricity and reuse it.

General street lamps and other outdoor lighting devices are composed of wires, lamp holders, bulbs, reflectors, lamp housings, ballasts, control circuits, etc. When the road lighting device is energized, the bulb can emit light. When the bulb emits light, because the filament prevents the flow of current, it also generates high temperature at the same time. The utility model uses this high-temperature thermal energy to generate electricity; that is, on the outside of the reflector—on the back of the position opposite to the light bulb, one or more sets of thermoelectric chip modules are fixed, depending on the available area, and connected by wires. Connect them in series or in parallel, and then connect the series or parallel thermoelectric chip modules/groups to the circuit system module with wires to regulate current and voltage such as rectification, conversion, boost, and voltage stabilization, and then pass through diodes and protection circuits. , ammeter, etc., and other necessary electronic components to store the obtained electric energy or directly transmit it to the power supply circuit for reuse or input it into the mains network to increase additional power supply.

At present, the development of thermoelectric materials has reached a considerable level; according to the more commonly used material systems in the industry, they can be roughly divided into (1) bismuth-iron compounds or alloys; (2) lead-iron alloys; (3) silicon-germanium Alloys. Among them, bismuth-based alloys are widely used in the refrigeration industry; lead-based alloys and silicon-germanium alloys are usually used as power generation modules. Their operating temperatures and efficiencies are slightly different, and should be analyzed and designed according to individual conditions. According to the above, the thermoelectric effect requires a certain degree of temperature difference before the electromotive force can be generated in the circuit; that is to say, there must be a "coordination of cold and heat" and a load circuit to form a complete thermoelectric system.

The utility model already possesses the "coordination of cold and heat" innately, so the actual implementation is better: the start-up period of the street lamp must be from night to early morning; However, when the street lamp starts to emit light, the bulb can generate a high temperature of hundreds of degrees Celsius, and when it is transmitted to the thermoelectric chip module arranged on the back surface of the reflector, it can still reach more than 100 degrees Celsius after measurement; Compared with such a high "hot", the temperature at night is relatively "cold"; in this way, the gap between "hot" and "cold" - that is, the temperature difference is also very different, which is really an insulated thermoelectric chip module. Excellent power generation conditions.

On the other hand, due to advances in materials science, there are also many options for thermally conductive materials. Heat conduction is actually the phenomenon that heat is transferred from a high temperature area to a low temperature area through a substance. Because the molecules of the object in contact with the high-temperature region vibrate relatively quickly, through these molecules, the energy is transferred to the neighboring molecules with lower temperature and slower vibration, so that they vibrate faster, and then complete the energy transmission; after actual tests, the heat transfer material The greater the temperature difference between the two ends, the faster the heat conduction rate; this physical phenomenon also shows that when high-power street lamps and other outdoor lighting emit light and heat at night, they can subtly form a continuous temperature with the dark night temperature. Relative temperature difference, and because the power of the street light source is very stable, the atmospheric temperature usually only changes slightly and asymptotically at night, so the two can continue to maintain a very ideal and stable large temperature difference range. For example, use appropriate heat-conducting materials to transfer the heat energy generated by the light source to the hot end of the thermoelectric chip module; or even add radiation screens, vacuum or other heat-insulating facilities and materials to separate the cold and hot environments as much as possible. ;In addition, fins can also be provided on the lamp housing to expand the area in contact with the atmosphere; or various applicable types of heat release pressure plates such as honeycomb type and contact pin type can be arranged on the inside of the lamp housing with heat transfer materials. Remove the heat energy that may intrude at the cold end of the thermoelectric chip module as soon as possible, or supplement it with weather-resistant, waterproof fans or coating with special cooling materials to maintain a superior temperature difference between the cold end and the hot end. Then the thermoelectric chip module must continue to exert a very good conversion efficiency. Whether it is in a high-power ceramic composite metal lamp, a high-pressure sodium lamp, or an LED semiconductor lighting device, as long as it is the heat generated by lighting, all lamps can be used effectively. The novel disclosed device achieves the purpose of directly converting heat energy into electrical energy through a well-designed physical structure and selection of appropriate and excellent materials for further utilization.

The device of the present utility model, whether it is in semiconductor materials, heat transfer conductors, insulating materials, and power storage facilities, charging circuits, control circuits and other various electronic control components, modules, rectifying circuits and inverter circuits required by the lighting device itself , rising/falling voltage and voltage stabilizing circuits, diodes, various chips, circuits, ballasts, and weather-resistant and waterproof fans, cooling materials, etc. are already quite mature products available for selection; in addition, regarding the Seebeck effect, thermal, Electronics, various lighting designs, vacuum insulation, vacuum powder insulation, radiation screens and other insulation technologies and materials have also had quite complete research results, and are widely familiar to professionals, and all have mature and practical The products are widely circulated and used, and will not be described here one by one.

Therefore, in order to achieve the above function or purpose, the utility model provides a device for recycling heat energy of lighting facilities, which includes a light source, a reflector outside the light source, and a lamp housing outside the reflector. characterized in that,

At least one thermoelectric chip module is arranged on the outer surface of the reflector. The side of the thermoelectric chip module contacting the reflector will be affected by the heat energy of the light source to form a hot end, while the other side is connected to the lamp housing in contact with the atmosphere to form a cold end. A stable temperature difference is maintained between the front and back sides of the thermoelectric chip module to generate stable electric energy.

The above-mentioned device for recovering and reusing the heat energy of lighting facilities, wherein, the electric energy generated by the thermoelectric chip module is guided to a circuit control system through a wire, and the rectifier circuit in the circuit control system, the voltage regulation circuit, the diode or the module regulation After that, directly enter the power supply circuit for continuous use.

In the above-mentioned device for recovering and reusing heat energy of lighting facilities, the circuit control system is connected with an electric storage facility for storing and reusing electric energy.

In the above-mentioned device for recovering and reusing heat energy of lighting facilities, the spacer between the lamp housing and the reflector is made of heat insulating material to avoid heat conduction effect.

In the above-mentioned device for recovering and reusing heat energy of lighting facilities, the reflector is provided with a protruding heat conductor that makes it closer to the heat source of the light source.

The above-mentioned device for recovering and reusing the heat energy of lighting facilities, wherein the lighting facilities are combined with a device that can obtain electric energy during the day when the sun or wind is sufficient, and store it in a power storage facility for use as a light source at night. Solar power generation panels, a wind power generator, or a power generation facility with both solar power generation panels and wind power generators.

In the above-mentioned device for recovering and reusing heat from lighting facilities, the light source is an incandescent lamp, a halogen lamp, a light bulb, an LED lamp, a high-pressure sodium lamp or a ceramic-metal lamp with high heat generation.

In the above-mentioned device for recovering and reusing heat energy from lighting facilities, the lamp housing is optionally provided with at least one weatherproof and waterproof heat dissipation blower, heat dissipation fan, heat releasing fins or heat releasing pressure plate.

The above-mentioned device for recovering and reusing heat energy of lighting facilities, wherein the thermoelectric chip module has two conductors, and at least one P-type semiconductor that generates negative charges when heated and at least one P-type semiconductor that generates positive charges when heated is arranged between the two conductors. An N-type semiconductor conducts electricity through two conductors.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is the embodiment diagram of the device for recovering and reusing heat energy of lighting facilities such as street lamps according to the present invention;

Fig. 2 is the embodiment figure that the utility model is applied on the reflector light fixture;

Fig. 3 is a diagram of an embodiment of the utility model combining solar energy and wind energy for energy storage together;

Fig. 4 is a diagram of an embodiment of the utility model applied to a wall washer;

Fig. 5 is a working principle diagram of the thermoelectric chip module of the present invention; and

Fig. 6 is a diagram of an embodiment of the utility model applied to a modeling street lamp.

Among them, reference signs

1 street light

2 reflector lamps

3 lamps

4 Wall washers

5 street lights

6 Shaped Street Lights

10 poles

11 fastening screws

12 reflector

121 The outer surface of the reflector

13 bulbs

131 filament

14 circuit control system

15 ballast

16 thermoelectric chip module

161, 162 Conductor

163 P-type semiconductor

164 N-type semiconductor

165, 166 insulator

167 heat release fins

168 heat release plate

169a, 169b wire

17 lamp housing

18 fastening bolt

19 insulation

20 wires

21 Power Storage Facilities

22 heat conductor

23 Solar panels

24 wind turbines

25 Transparent Shield

26 Lamppost

27 brackets

28 blower

29 Halogen tubes

Detailed ways

Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are specifically described:

Please refer to the figure, the present embodiment is illustrated with a general street lamp. At the end of a light pole 10, a reflector 12, a transparent shield 25, a light source 13, a circuit control system 14, a stabilizer 15, and a thermoelectric chip module 16 arranged on the outer surface 121 of the reflector are installed with fastening screws 11. The light fixture lamp shell 17 of spare parts such as is set firmly. The light source 13 of the present invention can be various products, such as the light bulb 13 shown in this embodiment.

Wherein the lamp housing 17 and the reflector 12 are fastened together by fastening bolts 18, and a heat insulating material 19 is placed in the middle spacer to avoid the effect of heat conduction, so that the two can maintain a cold end and a hot end respectively, forming a temperature difference. When the street lamp 1 is powered on, the bulb 13 will emit light instantly and generate heat energy. Because the bulb 13 is fixed between the reflector 12 and the transparent shield 25, all the heat energy is conducted outwards immediately, and a lot of heat energy is transferred to the reflector 12 through the air, and the reflector 12 is heated up immediately, and forms after continuously receiving heat energy. A high heat carrier is the hot end; at this time, the thermoelectric chip module 16 arranged on the outer surface 121 of the reflector is heated immediately to generate an electromotive force, because the other side of the thermoelectric chip module 16 is a lamp in contact with the relatively low temperature atmosphere. The shell 17 is the cold end; therefore, a stable temperature difference can be maintained between the front and back sides of the thermoelectric chip module 16, so that a stable current and/or electric energy can be continuously produced. The electric energy produced is guided to the circuit control system 14 through the wire 20, and after being regulated by the rectifier circuit, voltage regulation circuit, diode and other necessary electronic components and/or modules, it can directly enter the power supply circuit for continued use. , or transported to the power storage facility 21 for utilization.

In this embodiment, although the light source 13 is represented by a light bulb, the light source 13 can also be an incandescent lamp, a halogen lamp, an LED lamp, a high-pressure sodium lamp and/or a ceramic complex metal lamp, etc. The devices can be applied to areas with high brightness requirements such as street lamps or projection lamps.

Please refer to FIG. 2 , the biggest difference between this embodiment and FIG. 1 is that it is a reflector lamp 2 provided with a heat conductor 22 with a heat transfer protrusion. Under the condition of not affecting the reflection efficiency of the light source, the lamp 2 is designed as a protruding heat conductor 22 to make it closer to the heat source so as to capture more and stronger heat energy. Since the heat energy generated by the bulb 13 is transferred to the reflector 12 with air as the medium, and the thermal conductivity of the air itself is not ideal (0.57×10-4cal/cm□S□oC), therefore, this embodiment is provided with a closer The protruding heat conductor 22 of the heat source of the bulb 13 can more effectively capture heat energy and transmit it to the thermoelectric chip module 16 disposed on the outer surface 121 of the reflector, so as to create a larger temperature difference and obtain more electric energy.

Please refer to FIG. 3 , this embodiment is a compound energy recovery and reuse device. To be more precise, this is an embodiment for the interactive use of "wind, light, and heat" to obtain more electric energy and supply it to street lamps. When sunlight or wind power is sufficient during the day, electric energy can be obtained through a solar power generation panel 23, a wind power generator 24, or a power generation facility with both a solar power generation board 23 and a wind power generator 24, and stored in the battery. In the facility 21, it is prepared to be used by the light bulb 13 at night; when the night falls, the circuit control system 14 on the power storage facility 21 automatically starts the power supply according to the setting, so that the light bulb 13 is illuminated; at this time, the light source is output at the same time The thermal energy can be conducted to the thermoelectric chip module 16 arranged on the outer surface 121 of the reflector through the air in the lamp 3 and the reflector 12, and the thermoelectric chip module 16 can generate an electromotive force after receiving the heat energy, and because the temperature of the atmosphere decreases after nightfall Therefore, the temperature of the lamp housing 17 is naturally much lower than the reflector 12 above the heat source of the bulb 13; thus, the upper and lower sides of the thermoelectric chip mold 16 sandwiched between the reflector 12 and the lamp housing 17 maintain a temperature of more than a certain range. Temperature difference: Through this continuous and stable temperature difference, the output electric energy can be smoothed. This electric energy can be directly used or stored in the power storage facility 21 after being transferred to the circuit control system 14 through the wire 20 for regulation.

Please refer to FIG. 4 , this embodiment is based on a wall-washing projection lighting lamp for general nighttime advertisements. In a wall washer 4 equipped with a high-temperature halogen lamp tube 29, the thermoelectric chip module 16 is arranged on the outer surface 121 of the reflector; when the wall washer 4 is powered on, the halogen lamp tube 29 immediately emits light and simultaneously generates a working heat energy, After the heat energy is transferred to the reflector 12, it heats the thermoelectric chip module 16 arranged on the outer surface 121 of the reflector immediately, so that the thermoelectric chip module 16 produces a hot end. Meanwhile, because the other end of the thermoelectric chip module 16 is attached to the The lamp housing 17, which is directly exposed to the cold air at night, is relatively a cold end; in the temperature difference environment formed by the hot and cold ends inside and outside, the thermoelectric chip module 16 can generate current and/or electric energy , the electric energy is guided into the circuit control system 14 through the wire 20 to be reused or stored.

Please refer to FIG. 5 , which is a working schematic diagram of using a thermoelectric chip module for a street lamp 5 . After the light source bulb 13 is energized, the filament 131 in the bulb 13 produces high temperature immediately, and this high temperature heat energy is transmitted to the reflective cover body 12 and the heat transfer protrusion heat conductor 22 through the air, because the reflective cover body 12 and the heat transfer protrusion conductor 22 are all selected for heat conduction. The material with excellent coefficient, so its heat conduction efficiency is very high, can effectively transfer the high temperature heat energy generated by the light source; at this time, the thermoelectric chip module 16 arranged on the outer surface 121 of the reflector has conductors 161, 162, and At least one P-type semiconductor 163 and at least one N-type semiconductor 164 are regularly arranged between the two conductors 161, 162. Due to heating, negative charges are generated on the P-type semiconductor 163, and positive charges are generated on the N-type semiconductor 164. 161, 162 conduct and generate electric energy, and connect it to the power supply circuit through the wires 169a, 169b at both ends. The two ends of the thermoelectric chip module 16 are provided with insulators 165 and 166 to stabilize the power transmission generated by the thermoelectric chip module 16 and maintain the performance of power supply. And because the lamp housing 17 is in direct contact with the atmosphere, its temperature is much lower than that of the reflector 12. In this way, a continuous and stable temperature difference can be constructed between the cold end and the hot end of the thermoelectric chip module to generate a large amount of current and /or the electric energy can be reused by the street lamp 5 itself. And heat release fins 167 can also be set on the lamp housing 17 to expand the area in contact with the atmosphere, or various applicable types of release devices such as honeycomb type and contact pin type can be arranged on the inside of the lamp housing 17 with heat transfer materials. The heat-pressing plate 168 can greatly increase heat dissipation efficiency.

Please refer to Fig. 6, the present embodiment takes the modeling street lamp 6 as an example; a bracket 27 is extended on a street lamp post 26 of a special shape to support at least one heat dissipation blower or fan 28 with weather resistance and waterproof; when the modeling street lamp 6 is activated At the same time, the electric energy passes through the wire and the circuit control system 14 to make the bulb 13 emit light, and heat energy is generated at the same time, and the heat energy is conducted to the reflector 12, and the reflector 12 is heated; it is the hot end; The thermoelectric chip module 16 conducts heat; at this time, the lamp housing 17 above the thermoelectric chip module 16 can be maintained at a relatively low temperature because it is in direct contact with the night air, forming a cold end; the thermoelectric chip module 16 is cold and hot here. Under the condition of relative temperature difference between terminals, an electromotive force can be generated, that is, electric energy; the electric energy is transmitted to the circuit control system 14 through the wire 20, and after being regulated by electronic circuits such as rectifiers, transformers, and diodes, it can continue to supply power to the modeling street lamp 6 . In this embodiment, the air blower 28 in the system can be activated by the program set in the circuit control system 14 by setting a specific time or temperature sensing to assist the lamp housing 17 to dissipate heat, so as to achieve higher efficiency.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (9)

1. the device that the energy recovery of lighting installation is utilized again includes a light source, and this light source outer setting has a reflection shield, and this reflection shield outside then is provided with a lamp housing, it is characterized in that,

At least one thermoelectric chip module, be arranged on the reflection shield outer surface, one side of this thermoelectric chip module contact reflection shield will be subjected to the influence of light source heat energy to form the hot junction, opposite side then connects the lamp housing that contacts with atmosphere to form cold junction, make these positive and negative both sides of thermoelectric chip module keep a stable temperature difference, with the stable electric energy of output.

2. the device that the energy recovery of lighting installation is utilized again according to claim 1, it is characterized in that, the electric energy that this thermoelectric chip module produces guides to a circuit control system via a lead, by the rectification circuit in this circuit control system, after voltage regulating and controlling circuit, diode or the module regulation and control, directly enter the power supply circuits that use in order to continue.

3. the device that the energy recovery of lighting installation is utilized again according to claim 2 is characterized in that, this circuit control system is connected with the electric power storage facility that electrical power storage is used again.

4. the device that the energy recovery of lighting installation is utilized again according to claim 1 is characterized in that, this lamp housing and reflection shield between the two dottle pin have in order to avoid the adiabatic material of heat-conduction effect.

5. the device that the energy recovery of lighting installation is utilized again according to claim 1 is characterized in that, this reflection shield is provided with the heat carrier that makes it more near the projection of the thermal source of light source.

6. the device that the energy recovery of lighting installation is utilized again according to claim 1, it is characterized in that, this lighting installation is combined with in the daytime sunlight or wind-force and obtains electric energy when sufficient, and be stored in the electric power storage facility, in order to provide the solar panel that gives light source and use, a wind-driven generator or night simultaneously with the power generating equipment of solar panel and wind-driven generator.

7. the device that the energy recovery of lighting installation is utilized again according to claim 1 is characterized in that, this light source is an incandescent lamp, a Halogen lamp LED, a bulb, a LED lamp, a high-pressure sodium lamp or the ceramic metal halide lamp with high heating.

8. the device that the energy recovery of lighting installation is utilized again according to claim 1 is characterized in that, this lamp housing selects to be provided with heat dissipation blower, radiator fan, heat release fin or the heat release pressing plate of at least one weather-proof waterproof.

9. the device that the energy recovery of lighting installation is utilized again according to claim 1, it is characterized in that, this thermoelectric chip module has two conductors, and between two conductors, be provided with at least one P type semiconductor that promptly produces negative electrical charge of being heated and promptly produce at least one N type semiconductor of positive charge with being heated, via two conductors conduction output electric energy.

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