Heat air device for range extender heat pump

Abstract

The application relates to the technical field of heat pumps, in particular to a hot air device for a range-extending heat pump and a control method, which comprises a solar energy absorption heat box, the solar energy absorption heat box is provided with a heat absorption cavity; a light-insulation cover plate made of transparent material, the light-insulation cover plate is arranged on the solar energy absorption heat box; a hot air pipeline, the air inlet of the hot air pipeline is communicated with the heat absorption cavity; a hot air fan, the hot air fan is arranged at the air outlet of the hot air pipeline; a hot air air deflector, the hot air air deflector is communicated with the air outlet of the hot air pipeline, and the hot air air deflector is provided with a plurality of air outlets, hot air can blow to the surface of a heat exchanger of a heat pump through the air outlets to heat. The application is convenient for collecting solar energy, the utilization rate is high, the solar energy is utilized, the air inlet temperature of the heat pump is improved, the heating capacity of the heat pump is improved, and the time of frostless continuous operation is prolonged.

Description

Technical Field

[0001] This invention relates to the field of heat pump technology, and more particularly to a hot air device for a range-extended heat pump. Background Technology

[0002] Current air source heat pump products, by coupling with solar energy, can reduce energy consumption by utilizing solar energy. Existing technology uses the principle of conventional solar water heaters, transferring solar energy into water, and then using a heat exchanger to transfer the heat from the water to the air for use by the air source heat pump. Traditional methods of using solar energy to produce hot water are very expensive, requiring vacuum tubes to insulate the water pipes, making the manufacturing process complex. Furthermore, the method involves transferring heat from solar energy to the air, and then using the heated air to power the air source heat pump's heat exchanger. However, this secondary energy conversion during use results in low solar energy utilization efficiency.

[0003] Therefore, a range-extended heat pump hot air device is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a hot air device for a range-extended heat pump that facilitates the collection of solar energy and has a high utilization rate.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The hot air unit for a range-extended heat pump includes:

[0007] A solar energy absorption heat box, wherein the solar energy absorption heat box has a heat absorption chamber;

[0008] A light-transmitting and heat-insulating cover plate, which is made of transparent material and is installed on the solar energy absorption box;

[0009] A hot air duct, wherein the air inlet of the hot air duct is connected to the heat absorption chamber;

[0010] A hot air blower is installed at the air outlet of the hot air duct;

[0011] A hot air guide is connected to the air outlet of the hot air duct, and the hot air guide has multiple air outlets, through which hot air can be blown onto the heat exchanger surface of the heat pump for heating.

[0012] In some embodiments, the solar heat absorption box has a vacuum insulation cavity located in the wall panel and bottom plate of the solar heat absorption box, and the heat absorption cavity and the vacuum insulation cavity are not in communication.

[0013] In some embodiments, the surface of the heat absorption cavity of the solar absorption box is provided with a thermally conductive graphene coating.

[0014] In some embodiments, the light-transmitting and heat-insulating cover plate includes at least two transparent plates, with a vacuum heat insulation layer between adjacent transparent plates.

[0015] In some embodiments, the hot air guide includes two spaced-apart ventilation pipes, and multiple air guide pipes are spaced apart between the two ventilation pipes. The air guide pipes are connected to the ventilation pipes, and the air outlet is provided on the air guide pipes.

[0016] In some embodiments, a windbreak block is slidably disposed in the ventilation duct.

[0017] In some embodiments, a temperature sensor is also included, which is disposed at the air inlet of the hot air guide and is electrically connected to the hot air fan via a controller.

[0018] In some embodiments, the solar heat absorption box is integrally molded from foam.

[0019] In some embodiments, multiple solar heat absorption boxes are provided, and each of the multiple solar heat absorption boxes is connected to the air inlet of the hot air duct.

[0020] The beneficial effects of this invention are:

[0021] This invention provides a hot air device for a range-extended heat pump. The solar energy absorption box has a heat absorption cavity. A transparent, heat-insulating cover is placed on the solar energy absorption box. The air inlet of the hot air duct is connected to the heat absorption cavity, and the hot air guide is connected to the air outlet of the hot air duct. The hot air guide has multiple air outlets, allowing hot air to be blown onto the surface of the heat pump's heat exchanger by a hot air fan. In this way, solar energy directly heats the air in the heat absorption cavity of the solar energy absorption box. The hot air is then drawn into the hot air guide by the hot air fan and blown onto the surface of the heat pump's heat exchanger through the air outlets, thus heating the heat exchanger. Because the air absorbing solar energy is used directly, there is no secondary heat conversion, resulting in high solar energy utilization. Furthermore, since no insulated water pipes are needed, solar energy collection is convenient. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a hot air device for a range-extended heat pump according to the present invention;

[0024] Figure 2 This is a cross-sectional view of the solar heat absorption box in a range-extended heat pump hot air device of the present invention.

[0025] Figure 3 This is a schematic diagram of the hot air guide in a range-extended heat pump hot air device of the present invention.

[0026] In the picture:

[0027] 100. Heat exchanger; 1. Solar heat absorption box; 11. Heat absorption chamber; 12. Vacuum insulation chamber; 2. Light-transmitting and heat-insulating cover plate; 21. Transparent plate; 22. Vacuum insulation layer; 3. Hot air duct; 4. Hot air fan; 5. Hot air guide; 51. Ventilation pipe; 511. Wind baffle; 52. Air guide pipe; 521. Air outlet. Detailed Implementation

[0028] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0029] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0031] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0032] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0033] To facilitate solar energy collection and ensure high utilization rates, such as Figures 1-3 As shown, the present invention provides a hot air device for a range-extended heat pump. The hot air device for a range-extended heat pump includes a solar heat absorption box 1, a light-transmitting and heat-insulating cover plate 2, a hot air duct 3, a hot air fan 4, and a hot air guide 5.

[0034] The solar heat absorption box 1 has a heat absorption cavity 11. A transparent heat-insulating cover 2 is made of a transparent material and covers the solar heat absorption box 1. The air inlet of the hot air duct 3 is connected to the heat absorption cavity 11. A hot air fan 4 is located at the air outlet of the hot air duct 3. A hot air guide 5 is connected to the air outlet of the hot air duct 3 and has multiple air outlets 521, through which hot air can be blown onto the surface of the heat exchanger 100 of the heat pump for heating.

[0035] Sunlight passes through the light-transmitting and heat-insulating cover 2 to directly heat the air in the heat absorption chamber 11 of the solar energy absorption box 1. The hot air is then drawn by the hot air fan 4 to the hot air guide 5, and blown through the air outlet 521 onto the surface of the heat exchanger 100 of the heat pump, thereby heating the heat exchanger 100. Because the air absorbing solar energy is used directly, there is no secondary heat conversion, resulting in a high utilization rate of solar energy. Furthermore, since there is no need to install insulated water pipes, it is convenient to collect solar energy.

[0036] In some embodiments, the solar heat absorption box 1 has a vacuum insulation cavity 12, which is located in the wall panel and bottom plate of the solar heat absorption box 1, and the heat absorption cavity 11 and the vacuum insulation cavity 12 are not in communication. By setting the vacuum insulation cavity 12, heat exchange with the outside through the wall panel and bottom plate of the solar heat absorption box 1 can be avoided, thereby ensuring the heat collection effect of the solar heat absorption box 1.

[0037] In some embodiments, the surface of the heat absorption cavity 11 of the solar heat absorption box 1 is coated with a thermally conductive graphene coating. By applying the thermally conductive graphene coating, the efficiency of the solar heat absorption box 1 in absorbing solar energy can be effectively improved.

[0038] In some embodiments, the light-transmitting and heat-insulating cover 2 includes at least two transparent plates 21, with a vacuum insulation layer 22 between adjacent transparent plates 21. This arrangement facilitates sunlight to pass through the light-transmitting and heat-insulating cover 2 to heat the air in the solar energy absorption heat box 1, while the vacuum insulation layer 22 reduces heat loss through the cover 2.

[0039] In some embodiments, the hot air guide 5 includes two spaced-apart ventilation pipes 51, and multiple air guide pipes 52 are spaced apart between the two ventilation pipes 51. The air guide pipes 52 are connected to the ventilation pipes 51, and air outlet holes 521 are provided on the air guide pipes 52. With the above arrangement, a large area of ​​the heat exchanger 100 can be covered by multiple air guide pipes 52, thereby enabling effective heating of the heat exchanger 100 as needed.

[0040] In some embodiments, a baffle block 511 is slidably disposed in the ventilation duct 51. When the hot air fan 4 is not working, the baffle block 511 will fall naturally under the action of gravity; when the hot air fan 4 is turned on, the baffle block 511 slides upward under the action of hot air. The height of the baffle block 511 can be adjusted by adjusting the speed of the fan, thereby realizing the connection between the air guide duct 52 and the ventilation duct 51 at different heights, and realizing the distribution control of hot air.

[0041] In some embodiments, the hot air device for the range-extended heat pump further includes a temperature sensor, which is located at the air inlet of the hot air guide 5 and electrically connected to the hot air fan 4 via a controller. By setting the temperature sensor, the hot air temperature can be collected in real time, and the hot air fan 4 can be controlled according to the hot air temperature, thereby ensuring efficient heating of the heat exchanger 100.

[0042] In some embodiments, the solar heat absorption box 1 is integrally injection molded from foam. This method facilitates rapid manufacturing of the solar heat absorption box 1, and the insulation properties of the foam further reduce heat loss.

[0043] In some embodiments, multiple solar heat absorption boxes 1 are provided, and each of the multiple solar heat absorption boxes 1 is connected to the air inlet of the hot air duct 3. This arrangement further ensures a sufficient supply of hot air, thereby guaranteeing effective heating of the heat exchanger 100.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A hot air device for a range-extended heat pump, characterized in that, include: A solar heat absorption box (1) has a heat absorption chamber (11); Light-transmitting and heat-insulating cover plate (2), the light-transmitting and heat-insulating cover plate (2) is made of transparent material, and the light-transmitting and heat-insulating cover plate (2) is placed on the solar energy absorption heat box (1); Hot air duct (3), the air inlet of the hot air duct (3) is connected to the heat absorption chamber (11); Hot air blower (4), the hot air blower (4) is located at the air outlet of the hot air duct (3); A hot air guide (5) is connected to the air outlet of the hot air duct (3), and the hot air guide (5) has multiple air outlets (521) through which hot air can be blown to the surface of the heat exchanger (100) of the heat pump for heating; the hot air guide (5) includes two spaced ventilation pipes (51), and multiple air guide pipes (52) are spaced between the two ventilation pipes (51), the air guide pipes (52) are connected to the ventilation pipes (51), and the air guide pipes... (52) has an air outlet (521) on it; a baffle block (511) is slidably disposed in the ventilation pipe (51); when the hot air fan (4) is not working, the baffle block (511) will fall naturally under the action of gravity; when the hot air fan (4) is turned on, the baffle block (511) slides upward under the action of hot air, and the height of the baffle block (511) can be adjusted by adjusting the speed of the hot air fan (4), so as to realize the connection between the air guide pipe (52) and the ventilation pipe (51) at different heights.

2. The hot air device for a range-extended heat pump according to claim 1, characterized in that, The solar heat absorption box (1) has a vacuum insulation cavity (12), which is located in the wall and bottom plate of the solar heat absorption box (1), and the heat absorption cavity (11) and the vacuum insulation cavity (12) are not connected to each other.

3. The hot air device for a range-extended heat pump according to claim 1, characterized in that, The surface of the heat absorption cavity (11) of the solar absorption heat box (1) is provided with a thermally conductive graphene coating.

4. The hot air device for a range-extended heat pump according to claim 1, characterized in that, The light-transmitting and heat-insulating cover plate (2) includes at least two transparent plates (21), and a vacuum heat-insulating layer (22) is provided between adjacent transparent plates (21).

5. The hot air device for a range-extended heat pump according to claim 1, characterized in that, It also includes a temperature sensor, which is located at the air inlet of the hot air guide (5) and is electrically connected to the hot air fan (4) via a controller.

6. The hot air device for a range-extended heat pump according to claim 1, characterized in that, The solar energy absorption heat box (1) is formed by integral foam injection molding.

7. The hot air device for a range-extended heat pump according to claim 1, characterized in that, Multiple solar heat absorption boxes (1) are provided, and all of the multiple solar heat absorption boxes (1) are connected to the air inlet of the hot air duct (3).

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