WO2023214689A1

WO2023214689A1 - Non-powered air circulating apparatus

Info

Publication number: WO2023214689A1
Application number: PCT/KR2023/004057
Authority: WO
Inventors: 백승철
Original assignee: 백승철
Priority date: 2022-05-03
Filing date: 2023-03-28
Publication date: 2023-11-09
Also published as: KR102642979B1; KR20230155187A

Abstract

The present invention relates to a non-powered air circulating apparatus. The non-powered air circulating apparatus according to an embodiment of the present invention comprises: a heat transfer unit which is placed on a heating mechanism for generating heat and transfers the heat generated from the heating mechanism; a thermoelectric element which is installed above the heat transfer unit and generates electricity by using the heat; a cooling plate which is disposed above the thermoelectric element and includes at least one cooling unit for cooling the upper end of the thermoelectric element; a driving motor which is driven by power generated by the thermoelectric element; a rotating fan which forcibly convects air while being rotated by the driving motor; and a cover unit which is configured to cover at least a portion of the rotating fan and fastened to the cooling plate.

Description

Non-powered air circulation device

The present invention relates to a non-powered air circulation device, and more preferably, to a non-powered air circulation device that can circulate a fan by generating a temperature difference between the top and bottom using a thermoelectric element.

In general, a stove generates heat by burning fuel such as wood, oil, gas, or electricity, and uses the heat generated from the stove to warm the air. The air warmed by the stove is sent upward, and when the temperature drops, it moves downward. After being warmed from the top due to convection, the temperature at the bottom becomes relatively lower than the temperature at the top.

In other words, the air heated by the heat source rises upward and warms the air from the top, so it takes a long time for the air to become warm at a distance from the stove and a lot of heating costs are consumed.

In this way, blowing air using external electricity has the problem of causing energy loss and taking a long time to warm the air, resulting in a lot of heat loss.

To solve this problem, a technology for driving a blower using a thermoelectric element has been proposed as a conventional technology. Specifically, a thermoelectric element that converts heat into electricity is used to circulate the air at the top downward without consuming external energy, thereby maintaining the power of the stove. It contains information about blowers that effectively keep warm by sending heat downward.

However, in the prior art, as it is composed of an integrated structure, maintenance and repair are difficult, and in case of failure, there is a problem in that the entire device has to be replaced as is.

In addition, as the entire housing already becomes hot during initial operation, there is a problem in that the temperature difference is small, resulting in a decrease in performance (or a decrease in power generation), and there is also a problem in that durability due to heat is reduced as the entire blower is continuously exposed to heat.

In addition, as the wind direction of the rising air current (convection heat) generated from the stove and the descending air current generated from the blower (wind generated by the blowing means) are in opposite directions, the air flow inside the blower or at the bottom of the blower becomes entangled, creating a smooth flow. There was also the problem of not being discharged.

The present invention was devised to solve the above problems. The purpose of the present invention is to provide a non-powered air circulation device for efficiently improving the temperature difference between the upper and lower ends of a thermoelectric element by placing a cooling plate and a heat transfer plate, respectively. there is.

In addition, the present invention is to provide a non-powered air circulation device with improved cooling performance by having a cooling unit including a plurality of cooling fins of different shapes located on a cooling plate.

Furthermore, the purpose of the present invention is to provide a non-powered air circulation device with improved fastening force through a cover part fastened to a flange extending from a cooling plate.

The objects of the present invention are not limited to the objects mentioned above, and other objects of the present invention that are not mentioned can be understood by the following description and can be more clearly understood by the examples of the present invention. Additionally, the objects of the present invention can be realized by means and combinations thereof as indicated in the claims.

The non-powered air circulation device for achieving the object of the present invention described above includes the following configuration.

In one embodiment of the present invention, a non-powered air circulation device includes a heat transfer unit that is mounted on a heating device that generates heat and transfers heat generated from the heating device; A thermoelectric element installed on top of the heat transfer unit and generating electricity by heat; a cooling plate located above the thermoelectric element and including at least one cooling unit for cooling an upper end of the thermoelectric element; A driving motor driven by power generated from the thermoelectric element; a rotating fan that forcibly convects air while rotating by the drive motor; and a cover unit configured to surround at least a portion of the rotating fan and fastened to the cooling plate, wherein the heat transfer part is located between a contact part in contact with the heating device and the contact part and the thermoelectric element, and outside the contact part. It provides a non-powered air circulation device consisting of a heat transfer plate extending to.

Additionally, the cooling unit may include a first cooling unit located on a lower surface of the driving motor; and a second cooling unit extending along the outside of the cooling plate outside the first cooling unit.

In addition, the first cooling unit and the second cooling unit provide a non-powered air circulation device configured to extend in a radial direction along the cooling plate.

Additionally, the second cooling unit includes main cooling fins extending in a radial direction; It provides a non-powered air circulation device including; an auxiliary cooling fin formed between the main cooling fins and having a relatively shorter length than the main cooling fins.

Additionally, the main cooling fin provides a non-powered air circulation device consisting of at least one cooling fin along the radial direction.

In addition, the first cooling unit has a plurality of cooling fins extending perpendicular to each other and is axially symmetrical in the first direction, axially symmetrical in the second direction, and symmetrical to the origin of the cooling plate on the same plane of the cooling plate, and the second cooling unit is symmetrical to the origin of the cooling plate. A non-powered air circulation device configured to extend in a radial direction of the cooling plate is provided.

In addition, a non-powered air circulation device is provided in which the edge of the heat transfer plate is bent downward based on the height direction.

In addition, an edge of the heat transfer plate is bent downward to form a cavity surrounding the outside of the contact portion.

Additionally, the cover unit includes a cover portion configured to surround the outside of the cooling fan; And it provides a non-powered air circulation device including; a plunger fastened to the cooling plate and configured to fix the cover portion and the cooling plate.

In addition, a non-powered air circulation device is provided, including a guide groove formed in the cooling plate, and configured so that the rear surface of the flange is inserted into the guide groove.

In addition, a non-powered air circulation device is provided in which the heat transfer plate protrudes to the outside of the cooling unit based on the circumference of the contact portion.

In addition, the main cooling fin of the second cooling fin is configured to have a length equal to 50 to 80% of the radius of the cooling plate in the direction from the outermost part of the cooling plate to the center, and the auxiliary cooling fin is oriented from the outermost part of the cooling plate to the center. Provided is a non-powered air circulation device configured to have a length equal to 50 to 80% of the main cooling fin along the direction.

In addition, an insulating material configured to surround an outer portion of the thermoelectric element located between the cooling plate and the heat transfer plate; provides a non-powered air circulation device further comprising a.

Additionally, at least one temperature sensor located at the top of the cover unit; a control unit that controls the rotation amount of the drive motor; and a battery capable of being charged and discharged by being coupled to the thermoelectric element. It provides a non-powered air circulation device including a.

In addition, the control unit receives temperature information measured by the temperature sensor, and when the received temperature information is greater than the temperature set in the control unit, it provides a non-powered air circulation device configured to increase the rotation amount of the drive motor.

In addition, the control unit provides a non-powered air circulation device configured to increase the rotation amount of the driving motor through discharge of the thermoelectric element and the battery.

The present invention can achieve the following effects by combining the above-mentioned embodiment with the configuration, combination, and use relationship described below.

The present invention provides the effect of increasing the current and voltage generated from the thermoelectric element by increasing the temperature difference between the upper and lower ends of the thermoelectric element.

In addition, the present invention provides a cover portion that is easily detachable, thereby improving usability.

Furthermore, the present invention has the effect of blocking the flow of air rising from the heat source and increasing the heat transfer efficiency of the bottom of the thermoelectric element through a heat transfer plate configuration including a cavity.

In addition, the present invention has the effect of maximizing the air circulation effect by allowing the flow generated from the fan to be sprayed at an optimal radiation angle through a heat transfer plate bent downward.

Figure 1 shows a perspective view of a non-powered air circulation device as an embodiment of the present invention.

Figure 2 is an embodiment of the present invention, showing a perspective view of a non-powered air circulation device with the cover portion removed.

Figure 3 shows the configuration of a non-powered air circulator cooling plate as an embodiment of the present invention.

Figure 4 shows a top view of a non-powered air circulator cooling plate, as an embodiment of the present invention.

Figure 5 shows a side view of a non-powered air circulator cooling plate, as an embodiment of the present invention.

Figure 6 shows a top view of a non-powered air circulator heat transfer plate, as an embodiment of the present invention.

Figure 7 shows a cavity of a non-powered air circulator heat transfer plate, as one embodiment of the present invention.

Figure 8 shows another embodiment of the present invention, a non-powered air circulator cooling plate.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the attached drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This example is provided to more completely explain the present invention to those skilled in the art.

In addition, terms such as "...unit", "...unit", "...pin", "...plate", and "...element" described in the specification refer to at least one function or operation. It refers to a processing unit, which can be implemented through hardware, software, or a combination of hardware and software.

Additionally, the terms used in the specification are merely used to describe specific embodiments and are not intended to limit the embodiments. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in this specification, the names of the components are divided into first, second, etc. to distinguish them because the names of the components are the same, and the order is not necessarily limited in the following description.

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, identical or corresponding components will be assigned the same drawing numbers and overlapping descriptions thereof will be omitted.

The present invention relates to a non-powered air circulation device, which is configured to force rising air to descend by rotating a rotary fan (900) using current generated according to the temperature difference between the back and top surfaces of the thermoelectric element (400). It's about.

1 to 2 show a perspective view of a non-powered air circulation device as an embodiment of the present invention.

As shown, the non-powered air circulation device includes a heat transfer portion 100 including a contact portion 420 configured to be located at the top of the heating device and a heat transfer plate 410 surrounding the contact portion 420, a heat transfer plate 410, and cooling. It consists of a cooling plate 200 including a thermoelectric element 400 located between the plates 200 and a cooling unit 300 located on the upper surface of the thermoelectric element 400 and configured to cool the upper surface of the thermoelectric element 400. .

The heat transfer unit 100 is configured to surround the contact part 420 and the contact part 420 in contact with the heating apparatus so that the heat applied from the heating apparatus is transferred to the back of the thermoelectric element 400, and is configured to surround the contact part 420 to the outside of the cooling plate 200. It includes a heat transfer plate 410 configured to protrude.

The heat transfer plate 410 is configured to extend from the outermost side of one surface of the contact portion 420. More preferably, the heat transfer plate 410 is located on the upper surface of the contact part 420 and extends along the outermost edge of the contact part 420, and the outer area of the heat transfer plate 410 is based on the height direction as it becomes farther away from the contact part 420. It may be configured to be bent downward (411). The heat transfer plate 410 may form a cavity 412 as a predetermined space between the downwardly bent area 411 and the outer surface of the contact portion 420, and heat applied from the contact portion 420 or the heating device may be transmitted. It may be configured to be convected through the cavity 412 and transferred to the heat transfer plate 410. Accordingly, the heat of the heating device is configured to be transmitted to the thermoelectric element 400 through direct contact with the contact portion 420 and indirectly through the cavity portion 412 at the same time.

The back of the cooling plate 200 is located on the upper surface of the thermoelectric element 400, and the upper surface of the cooling plate 200 is configured to include a cooling unit 300. The cooling unit 300 is composed of a plurality of cooling fins having at least one or more shapes. More preferably, the cooling unit 300 is spaced apart from the first cooling unit 210 located adjacent to the position where the drive motor 600 is seated and the outer peripheral surface of the first cooling unit 210, so as to be at the maximum of the cooling plate 200. It is divided into a second cooling unit 220 that extends to the outside. More preferably, the first cooling unit 210 may be configured in a plate shape with a height relatively lower than that of the second cooling unit 220.

The thermoelectric element 400 is an external heat source that uses radiant heat or convection heat generated from a heating device to convert it into electricity. That is, the thermoelectric element 400 is configured to receive heat directly or indirectly from an external heat source through the heat transfer plate 410, and includes an insulating material 1000 positioned on the same plane to surround the thermoelectric element 400. do. Furthermore, a cooling plate 200 is located on the top of the thermoelectric element 400 to apply a temperature difference between the top and back surfaces of the thermoelectric element 400 and generate electricity from the thermoelectric element 400 through this.

Moreover, the thermoelectric element 400 generates electricity based on the Seebeck effect, that is, the effect of connecting both ends of two types of metal and creating an electromotive force when the temperatures of both ends are different, and the lower part of the thermoelectric element 400 is used for heat transfer. It is heated by the thermal energy of the heating device transmitted through the unit 100, and the opposite side uses the temperature difference distributed along the height direction of the heat transfer unit 100 as heat is radiated through the cooling plate 200.

In addition, a battery 800 that stores electrical energy generated from the thermoelectric element 400 may be further included, and a control unit 700 may be provided to control the amount of rotation of the drive motor 600. The control unit 700 may drive the driving motor 600 by supplying the power charged in the battery 800 to the driving motor 600.

More preferably, the control unit 700 may be configured to measure the amount of power generated from the thermoelectric element 400 and to control the rotation amount of the driving motor 600. Moreover, when the amount of power output from the thermoelectric element 400 is greater than the amount of power set in the control unit 700, the control unit 700 supplies a predetermined amount of power to the battery 800 to charge the battery 800. It can be configured to perform. In addition, the control unit 700 determines the charge amount of the battery 800 and charges the battery 800 through the power generated from the thermoelectric element 400 or uses the power stored in the battery 800 to drive the drive motor 600. ) is configured to increase the amount of rotation.

Additionally, the control unit 700 receives temperature information measured from at least one temperature sensor 1100 located on top of the thermoelectric element 500. If the received temperature information is greater than the temperature set in the control unit 700, the rotational force of the drive motor 600 is increased to form a stronger downward airflow along the inside of the cover unit 500.

Moreover, when the driving force applied to the driving motor 600 is less than or equal to the driving force set in response to the temperature information measured from the temperature sensor 1100, the control unit 700 performs discharging of the battery 800 to drive the driving motor 600. It may be configured to increase rotational force.

In this way, the control unit 700 can charge the battery 800 based on the amount of power generated from the thermoelectric element 400, and the temperature sensor 1100 located in the cover unit 500 or the cooling unit 300. ) If the temperature measured is greater than the set temperature, control can be performed to increase the rotation amount of the rotating fan 900.

In one embodiment of the present invention, the control unit 700 may determine to consider the rotation amount of the driving motor 600 before considering the charge amount of the battery 800. Therefore, when the temperature sensor located in the cover unit 500 is greater than the set temperature, power is applied to the driving motor 600 through the thermoelectric element 400, and when additional electrical energy is required, the battery 800 Power can be controlled to be applied to the driving motor 600 through the battery 800 without considering the amount of charge. Therefore, the control unit 700 considers control of the rotation amount of the driving motor 600 as a priority, and when control of the rotation amount of the driving motor 600 is not necessary, the battery ( It is configured to control the electrical energy produced from the thermoelectric element 400 to perform charging of the device 800.

In this way, when the temperature measured from the temperature sensor 1100 located on the top of the cover part 510 or the surface of the cooling unit 300 is greater than the set temperature, the control unit 700 operates the thermoelectric element 400 and/or the battery 800. ) is configured to increase the rotation amount of the motor, and is configured to determine in advance whether the temperature of the air adjacent to the cover part 510 has increased, and to move the high temperature air downward by driving the rotating fan 900. do.

The cover unit 500 includes a cover portion 510 coupled to the cooling plate 200 and composed of one or multiple plates, and the cover portion 510 is configured to surround the outer surface of the cooling plate 200. It may be configured to be located on the outer upper surface of the cooling plate 200.

The cover part 510 is configured so that one or each plate is independently detachable, and is fixed through a flange 520, one end of which is fixed to the upper surface of the cooling plate 200 and the other end of which is fixed to the inside of the cover part 510. It can be. In another embodiment of the present invention, the cover portion 510 may be configured in a cylindrical shape to integrally surround the cooling fan. In addition, the flanges 520 are fastened to the cooling plate 200 and are configured to be at least partially inserted and positioned inside the guide groove 230 located on the upper surface of the cooling plate 200, and the cover portion 510 and It is possible to prevent the flanges 520 from flowing.

The lower end of the cover part 510 is configured to face the bent area 411 of the heat transfer plate 410, and the cover part ( 510) is located. Accordingly, the high temperature air inside the cover part 510 is configured to be discharged to the outside along the gap formed between the cover part 510 and the heat transfer plate 410.

Moreover, it may include a moving part 511 that is formed in a portion of the lower part of the cover part 510 and whose cross-section becomes wider as it goes downward of the cover part 510 in the height direction compared to the top of the cover part. . More preferably, the moving part 511 may be formed integrally with the cover part 510 in a portion of the height direction at the bottom of the cover part 510, and may form a space between the cover part 510 and the heat transfer plate 410. By extension, the flow performance can be increased so that the air flowing along the inside of the cover part moves downward through the flow part 511. Moreover, the moving part may be configured in a shape corresponding to the bending area 411.

Figure 3 shows a perspective view of the cooling plate 200, Figure 4 shows a top view of the cooling plate 200, and Figure 5 shows a side view of the cooling plate 200.

The cooling plate 200 including the cooling unit 300 is configured to be located on top of the thermoelectric element 400, and includes a drive motor 600 fixed to the cooling plate 200 on the upper surface of the cooling plate 200. .

The cooling unit 300 located on the cooling plate 200 includes a first cooling unit 210 located adjacent to the bottom of the driving motor 600 depending on the location, and a cooling plate along the outside of the first cooling unit 210 ( It includes a second cooling unit 220 extending to the outside of the upper surface of the 200).

As an embodiment of the present invention, the first cooling unit 210 may be arranged with cooling fins configured in a perpendicular form overlapping each other. More preferably, the cooling fins formed along the first direction and the cooling fins formed along the second direction are integrated with each other, or cooling fins having a separate 'ㄱ' shape or 'ㄴ' shape are adjacent to and overlap each other. can be located In addition, a plurality of cooling fin groups formed integrally along the first and second directions with respect to the upper surface of the cooling plate 200 are axially symmetrical in the first direction, axially symmetrical in the second direction, and symmetrical to the origin of the cooling plate 200. It is configured to form the first cooling unit 210. Accordingly, the first cooling unit 210 may be configured so that a plurality of cooling fin groups form four symmetrical areas around the origin.

As another embodiment of the present invention, the first cooling unit 210 may be configured to extend along the radial direction of the cooling plate 200. This will be explained below in Figure 8.

The second cooling unit 220 may be positioned on the outer surface of the first cooling unit 210 at a predetermined distance. More preferably, the second cooling unit 220 may be configured to extend from the outside of the first cooling unit 210 to an area adjacent to the outer portion of the cooling plate 200.

In one embodiment of the present invention, the second cooling unit 220 may include cooling fins that are spaced apart from the first cooling unit 210 and integrally extend to the outside of the cooling plate 200, and are located at a position overlapping with the guide unit. The cooling fins formed may be positioned separately into at least two or more cooling fins. More preferably, the plurality of cooling fins constituting the second cooling unit 220 may extend along the radial direction of the cooling plate 200, or the plurality of cooling fins may extend in the first direction and/or the second direction. Accordingly, they may be positioned at right angles to each other on the upper surface of the cooling plate 200 to be axially symmetrical in the first direction, axially symmetrical in the second direction, and symmetrical to the origin of the cooling plate 200.

Moreover, the cooling fins forming the second cooling unit 220 are formed between the main cooling fins 221 and the main cooling fins 221, which are configured to extend along the radial direction of the second cooling unit 220, and are relatively It may be composed of auxiliary cooling fins 222 that have a shorter length than the main cooling fins 221.

In the case of the main cooling fin 221, it may be configured by combining two cooling fins divided along the longitudinal direction. In another embodiment of the present invention, the main cooling fin 221 is configured by combining two cooling fins. It can be.

As an embodiment of the present invention, the main cooling fin 221 of the second cooling fin 220 is 50 to 80% of the radius of the cooling plate 200 in the direction from the outermost part of the cooling plate 200 to the center. It is configured to have a length, and the auxiliary cooling fin 222 is configured to have a length equal to 50 to 80% of the main cooling fin 221 along the center direction from the outermost part of the cooling plate 200.

Moreover, the main cooling fin 221 and the auxiliary cooling fin 222 are separated into two cooling fins based on the radial direction of the cooling plate 200 with respect to the flow groove configured to surround the fixed grooves 250. and can be located. Furthermore, the length of the main cooling fins 221 and the auxiliary cooling fins 222 on the cooling plate 200 including the flow grooves may mean the length in the radial direction of the cooling plate 200 excluding the flow grooves.

The space spaced between the first cooling unit 210 and the second cooling unit 220 may include a fastening part 240 configured to fasten the driving motor 600. More preferably, the first cooling unit 210 may be located adjacent to the back of the drive motor 600, and may function to cool the drive heat generated from the back of the drive motor 600. Accordingly, the fastening part 240 may be located adjacent to the first cooling unit 210, and the rear surface of the drive motor 600 may be located adjacent to the first cooling unit 210 along the height direction. More preferably, the outermost end of the cooling plate 200 may be positioned at a distance of 3 to 20 mm inward from the end of the heat transfer plate 410.

At least one guide groove 230 may be located on the upper surface of the cooling plate 200, and at least a portion of the rear surface of the flanges 520 in the height direction may be inserted into the guide groove 230. Furthermore, the inner end of the flange 520 may be fixed by the fixing groove 250 formed on the upper surface of the cooling plate 200, and the outer end may be fastened to the cover portion 510. More preferably, one end of the flange 520 fixed to the fixing groove 250 may be fixed by a bolt fastened to the inside of the fixing groove 250. In this way, the flanges 520 and the guide grooves 230 are formed at positions corresponding to each other, and the cover portion 510 can be configured to correspond to the number of flanges 520.

In addition, the second cooling unit 220 may include flow grooves along the periphery of the fixing grooves 250, and the flow grooves may increase the flow of air flowing along the second cooling unit 220. You can. Accordingly, the second cooling unit 220 has the effect of enhancing cooling performance by the flow groove formed around the fixing groove 250.

The upper surface of the cooling plate 200 where the guide groove 230 is located may include a second cooling part 220 configured at a position that does not overlap the guide groove 230, and the second cooling part 220 is As shown, it is configured to extend along the end of the cooling plate 200 along the radial direction. More preferably, the second cooling unit 220 extends to the outermost part of the cooling plate 200, and the outermost end of the cooling plate 200 is inside the bent area 411 formed on the edge of the heat transfer plate 410. It can be configured in a position that matches the stage.

6 to 7 show the heat transfer plate 410, showing a cavity 412 formed outside the contact portion 420 and a downwardly bent area 411 formed to form the cavity 412. .

As shown, the heat transfer unit 100 includes a circular contact part 420 positioned in contact with a heating device as a heat source. Moreover, the heat transfer part 100 includes a heat transfer plate 410 that extends to the outside of the contact part 420.

The heat transfer plate 410 formed on the outside of the contact part 420 has a shape bent downward along the height direction, and the side of the contact part 420 and the heat transfer plate 410 bent downward form a cavity 412. can do. The cavity 412 may be formed adjacent to the heat source and is configured to transfer heat to the thermoelectric element 400 more efficiently. That is, it is configured so that heat conduction occurs through the contact portion 420 and at the same time, heat can be transferred to the thermoelectric element 400 in a convection form through heat flowing into the cavity 412. In addition, the cavity 412 is configured to prevent heat generated from the stove from being directly transferred to the cooling plate 200, thereby increasing the generated voltage of the thermoelectric element 400.

Moreover, the outermost part of the heat transfer plate 410 is configured to protrude from the side of the cooling plate 200 along the lateral direction, and the protruding heat transfer plate 410 has a downwardly bent shape 411. Therefore, when the rotary fan 900 rotates according to the rotation of the drive motor 600, high temperature air moves downward inside the cover part 510, and the cover part 411 follows the downward bending shape of the heat transfer plate 410. (510) It is configured to be discharged to the outside of the bottom. More preferably, there is a predetermined gap between the cover part 510 and the downward bending area 411 of the heat transfer plate 410, and the downwardly moved air flows along the outer bottom of the cover part 510 through the gap. It is configured to circulate.

Figure 8 is another embodiment of the present invention, showing a configuration in which cooling fins located in the first cooling unit 210 are located along the radial direction of the cooling plate 200.

Another embodiment of the present invention includes all of the heat transfer unit 100, cooling plate 200, drive motor 600, and cover unit 500 disclosed in FIGS. 1 and 2, and the drive motor 600 The driving force is configured to be controlled by the control unit 700.

However, as a difference from the embodiment disclosed in FIGS. 1 and 2, the first cooling unit 210 may be configured to extend along the radial direction of the circular cooling plate 200. Moreover, the cooling fins of the second cooling unit 220 may be located in positions corresponding to the radial cooling fins formed in the first cooling unit 210.

Moreover, the first cooling unit 210 cools the heat applied from the thermoelectric element 400 and is located on the rear of the drive motor 600 to radiate heat generated from the drive motor 600 to the outside. performs its function.

In this way, the non-powered air circulation device of the present invention relatively cools the upper surface of the thermoelectric element 400 through a plurality of cooling parts formed on the cooling plate 200 to optimize the efficiency of the electrical energy generated from the thermoelectric element 400. The control unit 700 is configured to control the driving speed of the rotating fan 900 based on the temperature of the top of the cover unit 510 to drive more efficient heat circulation.

The above detailed description is illustrative of the present invention. Additionally, the foregoing is intended to illustrate preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications can be made within the scope of the concept of the invention disclosed in this specification, a scope equivalent to the disclosed content, and/or within the scope of technology or knowledge in the art. The described embodiments illustrate the best state for implementing the technical idea of the present invention, and various changes required for specific application fields and uses of the present invention are also possible. Accordingly, the detailed description of the invention above is not intended to limit the invention to the disclosed embodiments. Additionally, the appended claims should be construed to include other embodiments as well.

[Explanation of symbols]

100: heat transfer unit

200: cooling plate

210: first cooling unit

220: Second cooling unit

221: main cooling fin

222: Auxiliary cooling fin

230: Guide home

240: fastening part

250: Fixed groove

300: cooling unit

400: thermoelectric element

410: heat transfer plate

411: downward bending area

412: Common department

420: contact part

500: Cover unit

510: Cover part

511: floating part

520: Plunge

600: Drive motor

700: Control unit

800: Battery

900: Rotating fan

1000: Insulating material

1100: Temperature sensor

Claims

A heat transfer unit that is mounted on a heat-generating heating device and transfers heat generated from the heating device;

A thermoelectric element installed on top of the heat transfer unit and generating electricity by heat;

a cooling plate located above the thermoelectric element and including at least one cooling unit for cooling an upper end of the thermoelectric element;

A driving motor driven by power generated from the thermoelectric element;

a rotating fan that forcibly convects air while rotating by the drive motor; and

A cover unit configured to surround at least a portion of the rotating fan and fastened to the cooling plate,

The heat transfer unit is a non-powered air circulation device consisting of a contact part in contact with the heating device and a heat transfer plate located between the contact part and the thermoelectric element and extending outside the contact part.
According to clause 1,

The cooling unit is,

a first cooling unit located on the lower surface of the driving motor; and

A non-powered air circulation device comprising: a second cooling unit extending along an outside of the cooling plate outside the first cooling unit.
According to clause 2,

The first cooling unit and the second cooling unit are configured to extend radially along the cooling plate.
According to clause 3,

The second cooling unit includes main cooling fins extending in a radial direction;

A non-powered air circulation device including; an auxiliary cooling fin formed between the main cooling fins and having a relatively shorter length than the main cooling fins.
According to clause 4,

The main cooling fin is,

A non-powered air circulation device comprising at least one cooling fin along the radial direction.
According to clause 4,

The main cooling fin of the second cooling fin is configured to have a length of 50 to 80% of the radius of the cooling plate from the outermost part of the cooling plate toward the center,

The auxiliary cooling fin is a non-powered air circulation device configured to have a length of 50 to 80% of the main cooling fin along the center direction from the outermost part of the cooling plate.
According to clause 1,

A non-powered air circulation device in which the edge of the heat transfer plate is configured to be bent downward based on the height direction.
According to clause 7,

A non-powered air circulation device configured to form a cavity surrounding the outer edge of the contact portion by bending an edge of the heat transfer plate downward.
According to clause 1,

The cover unit is,

a cover portion configured to surround the outside of the cooling plate; and

A non-powered air circulation device comprising a flange that is engaged with the cooling plate and is configured to fix the cover portion and the cooling plate.
According to clause 9,

It includes a guide groove formed on the cooling plate,

A non-powered air circulation device configured to insert the rear surface of the flange into the guide groove.
According to clause 1,

A non-powered air circulation device configured such that the heat transfer plate protrudes outside the cooling plate based on the circumference of the contact portion.
According to clause 11,

A non-powered air circulation device in which the outermost end of the cooling plate is positioned 3 to 20 mm apart from the outermost end of the heat transfer plate.
According to clause 1,

A non-powered air circulation device further comprising: an insulating material configured to surround the outside of the thermoelectric element located between the cooling plate and the heat transfer plate.
According to clause 1,

At least one temperature sensor located on the top of the cover unit;

a control unit that controls the rotation amount of the drive motor; and

A non-powered air circulation device including a battery that is connected to the thermoelectric element and can be charged and discharged.
According to clause 14,

The control unit receives temperature information measured by the temperature sensor,

A non-powered air circulation device configured to increase the rotation amount of the drive motor when the received temperature information is greater than the temperature set in the control unit.
According to clause 14,

The control unit is a non-powered air circulation device configured to increase the rotation amount of the driving motor through discharge of the thermoelectric element and the battery.
According to clause 2,

The first cooling unit has a plurality of cooling fins extending perpendicular to each other and are axially symmetrical in a first direction, axially symmetrical in a second direction, and symmetrical to the origin of the cooling plate on the same plane of the cooling plate,

The second cooling unit is a non-powered air circulation device configured to extend in a radial direction of the cooling plate.
According to clause 9,

A non-powered air circulation device further comprising: a moving portion at the bottom of the cover portion so that the cross-section of the cover portion becomes wider as it goes downward in the height direction compared to the top of the cover portion.