CN216564968U - Temperature difference power generation device - Google Patents

Abstract

The utility model relates to the field of micro-energy collection, in particular to a thermoelectric power generation device. The thermoelectric power generation device generates power in a mode of absorbing heat from a heat source through the laminating mode of the heat transfer sheet, the thermoelectric power generation sheet and the radiating sheet to cause the temperature difference between the two surfaces of the thermoelectric power generation sheet and further convert the temperature difference into electric energy. And weak current is collected and stored through the arranged micro-energy management unit. The storage can be carried out by using a common capacitor or a super capacitor, and the common capacitor or the super capacitor is used for intermittently supplying power for a rear-stage power utilization unit. The temperature difference power generation device can provide power for the monitoring device in the situation with a heat source, avoids laying cables and does not need to replace or charge batteries.

Description

Temperature difference power generation device

Technical Field

The utility model relates to the field of micro-energy collection, in particular to a thermoelectric power generation device.

Background

In the field of monitoring of equipment or environments, cable or battery power is commonly used. When no existing power supply cable exists at the monitoring point, the cable needs to be specially laid, on one hand, the cost is high, and on the other hand, the cable laying in some occasions has many difficulties. For example, in some industrial control situations, re-cabling after the production equipment has been installed has many limitations and is costly. The battery power supply is also a common power supply mode for some monitoring devices, but the battery capacity is limited, and the battery needs to be replaced or charged regularly, so that the maintenance is troublesome and the cost is high. In addition, in some high-humidity and high-heat occasions, the risk of battery explosion can be caused, and potential safety hazards can be caused by power supply of the batteries. When the monitoring occasion has a high-temperature source, the energy characteristic of the high temperature can be utilized to be converted into electric energy to supply power for the monitoring equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature difference power generation device by utilizing the temperature difference between a high-temperature source and the ambient temperature in a monitoring occasion with the high-temperature source.

The utility model is realized by the following technical scheme:

the utility model provides a thermoelectric generation device, includes the base, the base middle part sets up the accommodation hole, and the base bottom sets up and accommodation hole complex heat transfer piece, establish in the accommodation hole of heat transfer piece top with the heat transfer piece laminating put thermoelectric generation piece, thermoelectric generation piece top sets up the fin with the laminating of thermoelectric generation piece, and the base top sets up the upper cover, the fin passes through upper cover fixed connection.

In some preferred embodiments, the outer surface of the heat transfer sheet is provided with a fitting body, and the outer surface of the fitting body is a cylindrical surface or a spherical surface.

In some preferred embodiments, a control cavity is arranged between the base and the upper cover, a micro-energy management unit is arranged in the control cavity, and the temperature difference power generation sheet is electrically connected with the micro-energy management unit.

In some preferred embodiments, one or more pairs of magnet mounting grooves are formed on the edge of the lower surface of the base, and the magnets are fixedly connected in the magnet mounting grooves.

In some preferred embodiments, the base and/or the upper cover are provided with mounting ears, and the mounting ears are provided with mounting holes.

In some preferred embodiments, a temperature sensor is disposed on the base.

In some preferred embodiments, the base is integrally formed with the heat transfer sheet.

In some preferred embodiments, the base and/or the cover are thermally insulating.

The utility model has at least the following advantages and beneficial effects:

according to the thermoelectric power generation device, the heat of the heat source attached to the outer surface of the heat transfer sheet is transferred to the thermoelectric power generation sheet through the heat transfer sheet, and the heat dissipation sheet attached to the thermoelectric power generation sheet dissipates the heat to the environment so that the two surfaces of the thermoelectric power generation sheet generate temperature difference and are converted into electric energy. When the heat source is a plane, the heat transfer sheet is directly attached, and when the heat source is a cylindrical surface or a spherical surface, the heat transfer sheet can be attached to the heat source more closely through the attaching body arranged on the outer surface of the heat transfer sheet. And the micro-energy management unit provides power to the monitoring sensing unit. The thermoelectric power generation can be used for monitoring in occasions with heat sources, cables are prevented from being laid, and batteries do not need to be replaced or charged.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a bottom view of the present invention;

FIG. 5 is a perspective view of the present invention;

icon: 1-a base; 2-a heat transfer sheet; 3-thermoelectric power generation sheet; 4-micro-energy management unit; 5, covering the upper cover; 6-a heat sink; 7-a control chamber; 8-a magnet mounting groove; 9-a magnet; 10-mounting lugs, 11-mounting holes; 12-a bonded body; 13-temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a thermoelectric generation device, includes base 1, 1 middle part of base sets up the accommodation hole, and 1 bottom of base sets up and accommodation hole complex heat transfer piece 2, establish in the accommodation hole of 2 tops of heat transfer piece with the heat transfer piece 2 laminating put thermoelectric generation piece 3, 3 tops of thermoelectric generation piece set up with the fin 6 of 3 laminatings of thermoelectric generation piece, and 1 top of base sets up upper cover 5, fin 6 is through 5 fixed connection on the upper cover.

When using, on pasting the heat source with 2 surface of heat transfer piece, through heat transfer piece 2 with heat transfer to thermoelectric generation piece 3 on, another surface of thermoelectric generation piece 3 pastes meeting with fin 6, thereby fin 6 accepts to distribute to the environment after receiving the heat from thermoelectric generation piece 3 and make thermoelectric generation piece 3 two surfaces have the temperature difference and produce electric current. For more efficient heat transfer, the heat transfer fins 2 cannot be provided too thick and made of a material that easily transfers heat, such as aluminum alloy or copper. For more effective heat dissipation, the heat sink 6 is also made of a heat-conductive material, and the heat sink is configured to have a certain surface area.

In some preferred embodiments, the outer surface of the heat transfer sheet 2 is provided with a fitting body 12, and the outer surface of the fitting body 12 is a cylindrical surface or a spherical surface.

When the surface of the heat source is a plane, the outer surface of the heat transfer sheet 2 is set to be a plane, when the surface of the heat source is a cylindrical surface such as a pipeline, the heat transfer sheet 2 is set to be a cylindrical surface by arranging the attaching body 12, and when the surface of the heat source is a spherical surface, the outer surface of the heat transfer sheet 2 is set to be a spherical surface. In short, the heat transfer sheet 2 is attached to the surface of the heat source as closely as possible to take heat as possible for generating electricity.

For better heat transfer, a heat conducting layer or heat conducting grease can be coated between the heat transfer sheet 2 and the heat source for better heat transfer.

In some preferred embodiments, a control cavity is arranged between the base 1 and the upper cover 5, a micro-energy management unit 4 is arranged in the control cavity, and the thermoelectric generation sheet 3 is electrically connected with the micro-energy management unit 4.

When the current generated by the thermoelectric generation element 3 is small, the electric unit may not be directly driven to operate. The weak current can be collected and stored by the micro-energy management unit 4. In some embodiments, the storage may be performed by using a common capacitor or a super capacitor, so as to intermittently provide the power for the power unit at the later stage.

The control chamber is used for accommodating the micro-energy management unit 4, and can be arranged on the base 1 independently or on the upper cover 5 independently. It is also possible to arrange on the base 1 and the upper cover 5 simultaneously, and when the base 1 and the upper cover 5 are closed, a control chamber is formed together for accommodating the micro-energy management unit 4.

In some preferred embodiments, one or more pairs of magnet mounting grooves 8 are formed on the edge of the lower surface of the base 1, and magnets 9 are fixedly connected in the magnet mounting grooves 8.

When the installation position is limited or quick installation is needed, the magnet 9 can be arranged on the lower surface of the base 1, and when the hot outer surface is made of a material which can be combined by the magnet, the hot outer surface can be quickly installed on a heat source.

In some preferred embodiments, the base 1 and/or the upper cover 5 are provided with mounting ears 10, and the mounting ears 10 are provided with mounting holes 11.

By providing the mounting ears 10, it can be screwed to the heat source surface. The mounting ears 10 may be provided on the base 1 alone or may be provided on the upper cover 5 alone. The base 1 and the upper cover 5 may be provided at the same time. So as to facilitate processing and secure attachment to the heat source.

In some applications, the magnet 9 or the screw may be adhesively secured to the heat source when it is not convenient to use it.

In some preferred embodiments, a temperature sensor 13 is provided on the base 1. The temperature sensor 13 is arranged on the base 1 to monitor the temperature condition of the heat source. The base 1 can be provided with a pre-pressing spring, and the spring force provided by the pre-pressing spring enables the temperature sensing probe of the temperature sensor 13 to be tightly attached to the surface of a heat source, so that the temperature can be monitored more accurately.

In some preferred embodiments, the base 1 is integrally formed with the heat transfer sheet 2. When the integral molding is adopted, the processing can be more convenient.

In some preferred embodiments, the base 1 and/or the cover 5 are thermally insulating materials. When the temperature of the heat source is not too high or the heat which can be transferred out is not sufficient, the base 1 and the upper cover 5 can adopt heat insulation materials separately or simultaneously, so that the heat can be prevented from being dissipated from the base 1 or the upper cover 5, the heat can be transferred through the thermoelectric generation piece 3, and the heat energy can be utilized to generate electricity to a greater extent.

Claims (10)

1. The utility model provides a thermoelectric generation device which characterized by: the base is arranged in the middle of the base, the base bottom is provided with a heat transfer piece matched with the accommodating hole, a thermoelectric generation piece attached to the heat transfer piece is arranged in the accommodating hole above the heat transfer piece, a radiating fin attached to the thermoelectric generation piece is arranged above the thermoelectric generation piece, an upper cover is arranged at the top of the base, and the radiating fin is fixedly connected with the upper cover.

2. The thermoelectric power generation device according to claim 1, wherein: the outer surface of the heat transfer sheet is provided with a fitting body, and the outer surface of the fitting body is a cylindrical surface or a spherical surface.

3. The thermoelectric power generation device according to claim 1 or 2, wherein: set up the control chamber between base and the upper cover, the control intracavity sets up little ability administrative unit, put thermoelectric generation piece and little ability administrative unit electricity and be connected.

4. The thermoelectric power generation device according to claim 1 or 2, wherein: the edge of the surface below the base is provided with one or more pairs of magnet mounting grooves, and magnets are fixedly connected in the magnet mounting grooves.

5. The thermoelectric power generation device according to claim 3, wherein: the edge of the surface below the base is provided with one or more pairs of magnet mounting grooves, and magnets are fixedly connected in the magnet mounting grooves.

6. The thermoelectric power generation device according to claim 1 or 2, wherein: and the base and/or the upper cover are/is provided with mounting ears, and mounting holes are formed in the mounting ears.

7. The thermoelectric power generation device according to claim 3, wherein: and the base and/or the upper cover are/is provided with mounting ears, and mounting holes are formed in the mounting ears.

8. The thermoelectric power generation device according to any one of claims 1, 2, 5, and 7, wherein: a temperature sensor is arranged on the base.

9. The thermoelectric power generation device according to claim 8, wherein: the base and the heat transfer sheet are integrally formed.

10. The thermoelectric power generation device according to claim 8, wherein: the base and/or the upper cover are/is made of heat insulating materials.

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