JP2002345272A - Power generation equipment using generation element and heat sink therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize the Seebeck effect, which is caused by heating one face of a thermoelectric element installed at a heat sink by exhaust heat and the like and cooling the other face by a medium, such as water, to generate power for recycling exhaust energy. SOLUTION: Power generation equipment utilizes a generation element using a heat sink which has a plurality of fins for absorbing heat from heat currents formed therein, a plurality of base faces for storing heat conducted from the fins, formed on the periphery thereof, and a heat current path choke provided in the center of the heat sink where the tips of the fins are concentrated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for generating electric power by utilizing the Seebeck effect caused by heating one surface of a thermoelectric element provided on a heat sink by means of exhaust heat and cooling the other surface with a medium such as water. Done. It recycles the energy that is emitted.

[0002]

2. Description of the Related Art A conventional heat sink for a thermoelectric element is composed of a plurality of fins for absorbing heat from the air and a base for transmitting the heat to a bonded semiconductor.
The material is made of pure copper, etc. to withstand high temperatures and quickly conduct heat from the fins to the semiconductor attached to the base.However, in order to increase the heat sink area of the heat sink in a limited space, If the distance (pitch) between the fins is narrow, long, and the number of fins is increased, the processing cost increases due to poor workability of copper, and a low-cost power generator cannot be supplied.

[0003]

According to the present invention, a plurality of fins for absorbing heat from a heat flow are formed therein, and a plurality of base surfaces for storing heat conducted from the fins are formed on an outer peripheral portion thereof. And by providing the heat flow path restrictor at the center of the heat sink where the tips of the fins converge, the length of the fin is shortened, and an economical heat sink with good workability is manufactured. It is to provide a power generation device.

According to the present invention, a plurality of fins for absorbing heat from a heat flow are formed therein, and a plurality of base surfaces for storing heat conducted from the fins are formed on an outer peripheral portion, and The heat sink is characterized in that the heat flow path restrictor is provided at the center of the heat sink where the tips of the fins converge.

According to the present invention, there is provided a heat sink comprising a plurality of fins for absorbing heat from a heat flow and a base for storing heat conducted from the fins, wherein a plurality of the fins are arranged radially with their base faces outward. The heat sink is characterized in that the heat flow path restrictor is provided at a central portion of the heat sink where the fin tips converge.

According to the present invention, a base surface on which a plurality of fins for absorbing heat from a heat flow are formed and a plurality of power generating elements for storing heat conducted from the fins are formed on an outer peripheral portion thereof, A power generator using a power generating element, wherein the heat flow path restrictor is provided at a central portion of a heat sink where the tips of the fins converge.

According to the present invention, a plurality of fins for absorbing heat from a heat flow are formed therein, and a plurality of base surfaces for storing heat conducted from the fins are formed on an outer peripheral portion thereof. In a power generating device structure using a power generating element, wherein the heat flow path restrictor is provided in a central portion of a heat sink to be assembled, a plurality of power generating elements are provided on each base surface. is there.

According to the present invention, a plurality of fins for absorbing heat and a base for storing heat from the fins are radially arranged, and a plurality of the heat sinks are radially arranged at a central portion which is a fin tip gathering portion. By providing the thermal fluid flow restrictor, the length of the fin portion of the heat sink can be reduced, so that an efficient heat sink can be manufactured at a low manufacturing cost.

[0007]

An embodiment will be described with reference to the drawings. FIG. 1 shows a conventional heat sink. The base of (1) attaches the power generating element to the power generating element and serves to conduct heat from the fins (2), and the fins (2) receive heat from the heat flowing through the openings between the fins of the heat sink. And is usually made of a material having good heat conductivity such as copper. FIG. 1A is a side view of a conventional heat sink, and FIG. 1B is a front view thereof. Fig. 2 shows a heat sink made of extruded material such as aluminum, copper, etc., with the outer periphery being the base on which the power generation element is mounted (3)
A fin (4) for absorbing heat and a space (5) for receiving a heat flow restrictor for restricting a heat flow passage are provided therein. A heat sink according to the present invention is obtained by fitting the heat flow path restrictor (9) shown in FIG. 4 into this space.

FIG. 3 shows a heat sink according to the present invention. FIG. 3 (c) is a rear view of a partial heat sink constituting the heat sink, FIG. 3 (d) is a front view thereof, and FIG. 3 (e) is a right side view. The symbol (6) in the figure is a base on which a heating element is mounted, and (7) is a fin for transmitting heat from a heat flow to the base (6). FIG. 6F shows a heat sink according to the present invention, which is formed by radially combining the four trapezoidal heat sinks shown in FIGS. 6C to 6E and constitutes one heat sink. A space (8) is formed in the center of the heat sink.
The heat flow passage area is limited by fitting the heat flow passage restrictor (9) in. This heat sink is made of copper or aluminum plated with nickel.

FIG. 4 shows a heat flow path restrictor (9) inserted in the space (8) and intended to reduce the area of the heat flow path passing through the opening of the heat sink according to the present invention by the area.
(G) is a left side view thereof, (h) is a front view thereof, and (i) is a right side view thereof. The upper end of the flow restrictor (9) on the upper side of the heat flow is directed toward the heat sink opening. It has a pointed shape so as not to obstruct the flow. The heat flow path restrictor is made of a thin stainless steel plate or the like. FIG. 5 shows that the heat flow path restrictor (9) is inserted into the central space (8) to the heat sink according to the present invention, and FIG. On both sides of the heat sink, fixing covers (10) for fixing the four heat sinks are fixed by four fixing screws.
One heat sink forms one heat sink. FIG. 9 (k) is a right side view of FIG. 9 (j). Heat flows through the opening of the fixed cover (10) and the opening of the fin. FIG. 6 shows that the power generating element is attached to the heat sink.
The figure shows the state of power generation of the power generation device in which a water-cooled heat sink (11) for cooling is attached to the other surface of the power generation element. As shown in FIG. 1, the heat sink is heated to T ° C. by the heat flow temperature N ° C., and one side of the power generating element is
The other surface of the power generating element, which reaches T ° C., is cooled to W ° C. by the water-cooled heat sink (11).
The larger the temperature difference at which ℃ -W ° C becomes the electromotive force of this power generating element, the higher the temperature difference, the more the electromotive force increases. is there. FIG. (M) shows a right side view of FIG. (1). FIG. 6 shows a water-cooled heat sink (11) and a heat sink fixed with a screw (14) for fixing the power generator to a heat flow and a tube (13) for circulating water. In addition, a power generator according to the present invention. Figure (n) is a left side view of the power generation device, Figure (o) is a front view, and Figure (p) is a left side view thereof.

[0010]

According to the present invention, it has become possible to manufacture a power generation device using a low-cost and efficient power generation element.

[Brief description of the drawings]

FIG. 1 A conventional heat sink for a power generating element

FIG. 2 is a view of a heat sink for a power generating element according to the present invention before fitting a heat flow restrictor.

FIG. 3 is a heat sink according to the present invention combined with a partial heat sink of a composite heat sink for a power generating element. (C) Rear view of partial heat sink. (D) Front view of partial heat sink (base). Figure of heat sink before heat flow fitting

FIG. 4 is a heat flow restrictor fitted to the heat sink in FIGS. 2 and 3, (g) a left side view of the heat flow restrictor, (h) a front view of the heat flow restrictor, and (i) a right side view of the heat flow restrictor.

FIG. 5 is a composite heat sink assembly diagram and a heat flow restrictor or fitting diagram according to the present invention. (J) Front view partial cutaway view (k) Right side view

FIG. 6 is a schematic diagram of the structure of a power generation device according to the present invention. (L) Front view (m) Right side view

FIG. 7 is an assembly view of a power generation device using the power generation element according to the present invention. (O) Front view (p) Right side view

[Explanation of symbols]

FIG. Base 2. fin

FIG. Base 4. Fins 5. Space for heat flow passage restriction

FIG. Base 7. Fins 8. Space for heat flow passage restriction

FIG. Heat flow path restriction

FIG. Fin 9 Heat flow path restriction 10 Heat sink fixing cover

FIG. 6: 10 heat sink fixing cover Water cooling heat sink

FIG. 6: 10 heat sink fixing cover Water-cooled heat sink 12. Mounting flange 13. Water pipe

Claims (4)

[Claims] 1. A heat sink in which a plurality of fins for absorbing heat from a heat flow are formed therein, a plurality of base surfaces for storing heat conducted from the fins are formed on an outer peripheral portion, and tips of the fins are gathered. Wherein the heat flow path restrictor is provided at a central portion of the heat sink. 2. A heat sink comprising a plurality of fins for absorbing heat from a heat flow and a base for storing heat conducted from said fins, wherein said plurality of heat sinks are arranged radially with their base surfaces facing outward. A heat sink, wherein the heat flow path restrictor is provided at a central portion where the fin tips converge. 3. A base surface is formed on an outer peripheral portion of a plurality of fins for absorbing heat from a heat flow, and a plurality of power generation elements for storing heat conducted from the fins is formed on an outer peripheral portion thereof. A power generating device using a power generating element, wherein the heat flow path restrictor is provided at a central portion of a heat sink at which tips are gathered. 4. The power generator according to claim 3,
A power generating device, wherein a plurality of power generating elements are provided on each base surface.