Through-wall type fresh air equipment

Abstract

The utility model relates to the technical field of fresh air equipment, and discloses through-wall type fresh air equipment which comprises a shell, an indoor air port, an outdoor air port, an air inlet, an air outlet and an air outlet. The partition piece is arranged in the air duct so that the air duct can be divided into a first sub-air duct and a second sub-air duct, and the first sub-air duct and the second sub-air duct both communicate with the indoor air opening and the outdoor air opening; the heat pipe assembly comprises a first heat pipe unit, the first heat pipe unit comprises a first heat pipe, the first heat pipe is arranged on the partition piece in a penetrating mode, the first end of the first heat pipe is arranged in the first sub-air channel, the second end of the first heat pipe is arranged in the second sub-air channel, and a working medium used for transferring heat is contained in the first heat pipe. The heat pipe assembly is arranged in the air duct, so that continuous heat transfer can be achieved. The heat pipe assembly is simple in structure and easy to assemble. The heat pipe assembly is adopted as the heat exchanger, the heat exchanger structure can be simplified on the basis that the heat transfer efficiency is effectively improved, and the assembling difficulty of the through-wall type fresh air equipment is reduced.

Description

Technical Field

[0001] This application relates to the field of fresh air equipment technology, specifically to a through-wall fresh air equipment. Background Technology

[0002] Currently, most through-wall fresh air systems use heat storage cores to recover heat. Common heat storage cores are ceramic or aluminum plates. However, the heat storage energy of the heat storage cores is limited, resulting in low heat transfer efficiency.

[0003] The related technology discloses an exhaust and fresh air heat exchange system. A horizontally positioned intermediate plate divides the duct into an upper exhaust duct and a lower fresh air duct. Several irregularly shaped honeycomb heat pipe air conditioning cooling capacity recovery heat exchangers are arranged parallel to each other within the duct, each heat exchanger sealingly passing through the intermediate plate. Each heat exchanger has an identical structure, including a housing open at both ends, with several heat exchange tubes arranged parallel to each other inside the housing. A horizontal partition is located at the vertical center of the housing, through which each heat exchange tube is sealingly passed. The honeycomb structure of the irregularly shaped honeycomb heat pipe air conditioning cooling capacity recovery heat exchangers improves heat transfer efficiency and can be widely used in workshops, shopping malls, and other applications with high fresh air volume requirements.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, while installing irregularly shaped honeycomb heat pipe air conditioning cooling capacity recovery heat exchangers in the ducts of exhaust and fresh air heat exchange systems can improve heat transfer efficiency, the structure of these heat exchangers is relatively complex and their volume is large. Furthermore, through-wall fresh air systems typically have limited installation space, making it difficult for irregularly shaped honeycomb heat pipe air conditioning cooling capacity recovery heat exchangers to fit into the compact space of through-wall fresh air systems.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a through-wall fresh air device that simplifies the heat exchanger structure while improving heat transfer efficiency.

[0009] According to a first aspect of the present invention, a through-wall fresh air device is provided, comprising: a housing having an indoor air outlet and an outdoor air outlet, the housing having an internal duct connecting the indoor air outlet and the outdoor air outlet; a partition disposed within the duct to divide the duct into a first sub-duct and a second sub-duct, both the first sub-duct and the second sub-duct being connected to the indoor air outlet and the outdoor air outlet; and a heat pipe assembly including a first heat pipe unit, the first heat pipe unit including a first heat pipe, the first heat pipe passing through the partition, with a first end of the first heat pipe disposed in the first sub-duct and a second end of the first heat pipe disposed in the second sub-duct, the first heat pipe containing a working fluid for transferring heat.

[0010] Optionally, the first heat pipe unit includes a plurality of first heat pipes, which are arranged radially at intervals along the air duct.

[0011] Optionally, the heat pipe assembly further includes: a second heat pipe unit, including a second heat pipe, the second heat pipe passing through a separator, and a first end of the second heat pipe being disposed in a first sub-duct, a second end of the second heat pipe being disposed in a second sub-duct, the second heat pipe containing a working fluid for transferring heat, and the second heat pipe and the first heat pipe being arranged at intervals along the axial direction of the duct.

[0012] Optionally, the second heat pipe unit includes a plurality of second heat pipes, which are arranged radially spaced along the air duct.

[0013] Optionally, multiple first heat pipes and multiple second heat pipes are arranged alternately along the radial direction of the air duct.

[0014] Optionally, there are multiple first heat pipe units and multiple second heat pipe units, with the multiple first heat pipe units and multiple second heat pipe units arranged alternately along the axial direction of the air duct.

[0015] Optionally, the lengths of the plurality of first heat pipes are adapted to the dimensions of the inner wall of the housing; and / or, the lengths of the plurality of second heat pipes are adapted to the dimensions of the inner wall of the housing.

[0016] Optionally, a gap is left between the first heat pipe and the inner wall of the housing; and / or, a gap is left between the second heat pipe and the inner wall of the housing.

[0017] Optionally, the through-wall fresh air system further includes: a first fan located in a first sub-duct; and a second fan located in a second sub-duct; wherein both the first fan and the second fan are reversible fans, or the first fan is a unidirectional exhaust fan and the second fan is a unidirectional supply fan.

[0018] Optionally, the through-wall fresh air system further includes: a support member disposed in the air duct, the support member being supported between the heat pipe assembly and the housing; and / or, a filter device disposed within the air duct; and / or, an outer cylinder sleeved on the outside of the housing, with the inner wall of the outer cylinder fitting against the outer wall of the housing; and / or, an indoor panel covering the indoor air vent, the indoor panel having a first perforated structure for air intake and exhaust; and / or, an outdoor panel covering the outdoor air vent, the outdoor panel having a second perforated structure for air intake and exhaust, the second perforated structure being disposed on the side and / or bottom of the outdoor panel.

[0019] The through-wall fresh air device provided in this embodiment can achieve the following technical effects:

[0020] By installing heat pipe assemblies within the air duct, heat transfer can be achieved through the phase change cycle of the working fluid within the heat pipe assembly. This heat transfer process is continuous, thus enabling efficient and sustained heat transfer. Furthermore, heat pipe assemblies have a simple structure and are easy to assemble. Using heat pipe assemblies as heat exchangers can effectively improve heat transfer efficiency while simplifying the heat exchanger structure and reducing the assembly difficulty of through-wall fresh air systems.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of the structure of a through-wall fresh air device provided in an embodiment of this disclosure;

[0024] Figure 2 yes Figure 1 The diagram shows a cross-sectional view along direction AA, where the arrows indicate the radial direction of the air duct.

[0025] Figure 3 yes Figure 1 The diagram shows a cross-sectional view along the BB direction, where the arrows indicate the axial direction of the air duct.

[0026] Figure 4 This is a cross-sectional schematic diagram of a through-wall fresh air device provided in an embodiment of this disclosure;

[0027] Figure 5 This is a cross-sectional schematic diagram of another through-wall fresh air device provided in an embodiment of this disclosure.

[0028] Figure label:

[0029] 10: Shell; 101: Inner wall of shell; 102: Outer wall of shell; 11: Indoor air outlet; 12: Outdoor air outlet; 13: Air duct; 131: First sub-air duct; 132: Second sub-air duct;

[0030] 20: Separator;

[0031] 30: Heat pipe assembly; 31: First heat pipe unit; 311: First heat pipe; 32: Second heat pipe unit; 321: Second heat pipe;

[0032] 40: Support component;

[0033] 51: First fan; 52: Second fan;

[0034] 60: Filtering device;

[0035] 70: Outer cylinder; 71: Inner wall of outer cylinder;

[0036] 80: Interior panel; 81: First perforated structure;

[0037] 90: Outdoor panel; 91: Second perforated structure. Detailed Implementation

[0038] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0039] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0040] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0042] Unless otherwise stated, the term "multiple" means two or more.

[0043] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0044] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0046] Combination Figure 1-5 As shown, this disclosure provides a through-wall fresh air device, including a housing 10, a partition 20, and a heat pipe assembly 30.

[0047] Combination Figure 2-4As shown, the housing 10 is provided with an indoor air vent 11 and an outdoor air vent 12. The housing 10 has an internal structure with an air duct 13 connecting the indoor air vent 11 and the outdoor air vent 12. A partition 20 is provided in the air duct 13 to divide the air duct 13 into a first sub-air duct 131 and a second sub-air duct 132. Both the first sub-air duct 131 and the second sub-air duct 132 are connected to the indoor air vent 11 and the outdoor air vent 12. The heat pipe assembly 30 includes a first heat pipe unit 31, which includes a first heat pipe 311. The first heat pipe 311 passes through the partition 20, and the first end of the first heat pipe 311 is located in the first sub-air duct 131, and the second end of the first heat pipe 311 is located in the second sub-air duct 132. The first heat pipe 311 contains a working fluid for transferring heat.

[0048] The heat pipe assembly 30 operates on the principle of a phase change process of the working fluid. The heat pipe mainly consists of three parts: the casing, the wick (capillary structure), and the working fluid. It includes an evaporation section and a condensation section. In the evaporation section, the working fluid absorbs heat and vaporizes, transforming into vapor. Under a small pressure difference, the gaseous working fluid flows from the evaporation section to the condensation section. In the condensation section, the gaseous working fluid condenses upon cooling, releasing heat, and then re-condenses into a liquid. The liquid working fluid, through the capillary force of the wick, flows back to the evaporation section along the pores of the wick, completing one cycle.

[0049] The evaporation section absorbs heat, and the working fluid changes from a liquid to a gaseous state. The condensation section releases heat, and the working fluid changes from a gaseous state to a liquid state. In a through-wall fresh air system, the evaporation and condensation sections can switch according to the temperature and direction of the airflow. The heat pipe assembly 30 can recover cold energy in summer and heat energy in winter.

[0050] Depending on the different operating modes of the through-wall fresh air system, one of the first sub-duct 131 and the second sub-duct 132 can be an exhaust duct 13, and the other can be a supply air duct 13. Alternatively, both the first sub-duct 131 and the second sub-duct 132 can be exhaust ducts 13, or both can be supply air ducts 13. In heat exchange mode, one of the first sub-duct 131 and the second sub-duct 132 can be an exhaust duct 13, and the other can be a supply air duct 13.

[0051] For example, when the first sub-air duct 131 is an exhaust air duct 13 and the second sub-air duct 132 is an air supply air duct 13, the first end of the first heat pipe 311 is located in the exhaust air duct 13 and the second end of the first heat pipe 311 is located in the air supply air duct 13.

[0052] In winter, the temperature of the indoor exhaust air is higher than the temperature of the outdoor fresh air supply. At this time, the first end of the first heat pipe 311 is the evaporation section, and the second end is the condensation section. The indoor exhaust air flows through the exhaust duct 13 to the first end of the first heat pipe 311. The liquid working fluid at the first end of the first heat pipe 311 absorbs heat from the exhaust air and evaporates into a gaseous state. The gaseous working fluid then moves to the second end of the first heat pipe 311. The exhaust air releases heat, lowers in temperature, and is eventually discharged outdoors. The outdoor fresh air supply flows through the supply duct 13 to the second end of the first heat pipe 311. The gaseous working fluid at the second end of the first heat pipe 311 releases heat and condenses into a liquid state. The liquid working fluid moves to the first end of the first heat pipe 311 under capillary action. The supply air absorbs heat, raises in temperature, and eventually flows into the room, thus recovering and utilizing the heat from the exhaust air. This can reduce the energy consumption of the indoor air conditioning system, significantly reduce the burden on the indoor heating system, and improve energy efficiency.

[0053] In summer, the temperature of the indoor exhaust air is lower than the temperature of the outdoor fresh air supply. At this time, the first end of the first heat pipe 311 is the condensation section, and the second end is the evaporation section. The indoor exhaust air flows through the exhaust duct 13 to the first end of the first heat pipe 311, where the gaseous working fluid releases heat and condenses into a liquid state. The liquid working fluid moves to the second end of the first heat pipe 311 under capillary action. The exhaust air absorbs heat and its temperature rises before being discharged outdoors. Similarly, the outdoor fresh air supply flows through the supply duct 13 to the second end of the first heat pipe 311. The liquid working fluid at the second end of the first heat pipe 311 absorbs heat from the supply air and evaporates into a gaseous state, which then moves to the first end of the first heat pipe 311. The supply air releases heat and its temperature decreases before flowing back into the room, thus recovering and utilizing the cooling capacity of the exhaust air. This can reduce the energy consumption of the indoor air conditioning system, significantly reduce the burden on the indoor cooling system, and improve energy efficiency.

[0054] The shape of the first heat pipe 311 is not limited to a cylindrical shape; it can also be a flat, curved, or microchannel heat pipe, as long as the heat transfer principle can be used to achieve phase change heat absorption at one end and phase change heat release at the other end of the first heat pipe 311.

[0055] The separator 20 makes the first sub-duct 131 and the second sub-duct 132 independent of each other, enabling indoor air exhaust and outdoor fresh air supply to occur simultaneously in the first sub-duct 131 and the second sub-duct 132 respectively. The independent first sub-duct 131 and the second sub-duct 132 can avoid the mixing of exhaust and supply airflows, thus improving heat exchange efficiency.

[0056] The first end of the first heat pipe 311 is located in the first sub-air duct 131, and the second end of the first heat pipe 311 is located in the second sub-air duct 132. This enables heat transfer between exhaust air and fresh air, effectively recovers heat or cold from the exhaust air, and improves the temperature suitability of the fresh air.

[0057] The through-wall fresh air system provided in this embodiment utilizes a heat pipe assembly 30 installed within the air duct 13. This heat transfer is achieved through the phase change cycle of the working fluid within the heat pipe assembly 30, ensuring continuous heat transfer and high efficiency. Furthermore, the heat pipe assembly 30 has a simple structure and is easy to assemble. Using the heat pipe assembly 30 as a heat exchanger simplifies the heat exchanger structure and reduces the assembly difficulty of the through-wall fresh air system while effectively improving heat transfer efficiency.

[0058] Optionally, combined Figure 2-5 As shown, the partition 20 is a partition plate, which is located in the air duct 13 and extends along the axial direction of the air duct 13. Both ends of the partition plate are connected to the inner wall 101 of the housing, so that the first sub-air duct 131 and the second sub-air duct 132 are independent of each other. The heat pipe assembly 30 passes through the partition plate.

[0059] A partition is disposed within the air duct 13 and extends along the axial direction of the air duct 13, which can divide the air duct 13 into a first sub-air duct 131 and a second sub-air duct 132 with the same extension direction. The two ends of the partition are connected to the inner wall 101 of the housing, which can enhance the structural stability of the entire equipment.

[0060] Optionally, combined Figure 2 , Figure 4 and Figure 5 As shown, the first heat pipe unit 31 includes a plurality of first heat pipes 311, which are arranged radially at intervals along the air duct 13.

[0061] The radial direction of air duct 13 is as follows Figure 2 As indicated by the middle arrow, multiple first heat pipes 311 are arranged radially at intervals along the air duct 13, ensuring a uniform radial distribution of the first heat pipes 311. This arrangement increases the heat exchange area of ​​the first heat pipe unit 31, improving heat exchange efficiency. The radially spaced arrangement of the multiple first heat pipes 311 allows for more thorough contact between the airflow and each first heat pipe 311 as it flows within the air duct 13, resulting in more efficient heat transfer. Furthermore, this arrangement optimizes airflow organization within the air duct 13, reducing airflow resistance and improving the uniformity of airflow. This enables the supply and exhaust airflows to exchange heat uniformly within the first sub-air duct 131 and the second sub-air duct 132, respectively, improving heat exchange performance.

[0062] Optionally, combined Figure 2-5As shown, the heat pipe assembly 30 also includes a second heat pipe unit 32, which includes a second heat pipe 321. The second heat pipe 321 passes through the separator 20, and the first end of the second heat pipe 321 is located in the first sub-air duct 131, and the second end of the second heat pipe 321 is located in the second sub-air duct 132. The second heat pipe 321 is filled with a working fluid for transferring heat. The second heat pipe 321 and the first heat pipe 311 are arranged at intervals along the axial direction of the air duct 13.

[0063] The axial direction of air duct 13 is as follows Figure 3 As indicated by the middle arrow, adding a second heat pipe unit 32 to the existing first heat pipe unit 31 within the air duct 13 effectively increases the heat exchange area of ​​the heat pipe assembly 30. This allows more heat to be transferred between the exhaust and supply airflows, enabling more efficient recovery of heat or cold from the exhaust air and its transfer to the fresh air, thereby improving heat exchange efficiency. The second heat pipe 321 and the first heat pipe 311 are arranged axially spaced along the air duct 13, and the gap between them allows for smooth airflow and reduces airflow resistance. This improves the uniformity of airflow, thereby increasing heat exchange efficiency.

[0064] Optionally, combined Figure 2 , Figure 4 and Figure 5 As shown, the second heat pipe unit 32 includes a plurality of second heat pipes 321, which are arranged radially at intervals along the air duct 13.

[0065] Multiple second heat pipes 321 are arranged radially at intervals along the air duct 13, ensuring a uniform radial distribution of the second heat pipes 321. This increases the heat exchange area of ​​the second heat pipe unit 32, improving heat exchange efficiency. The radial arrangement of the multiple second heat pipes 321 allows for more thorough contact between the airflow and each heat pipe 321 as it flows within the air duct 13, resulting in more efficient heat transfer. Furthermore, this arrangement further optimizes airflow organization within the air duct 13, reducing airflow resistance and improving the uniformity of airflow. This enables uniform heat exchange between the supply and exhaust airflows within the first sub-air duct 131 and the second sub-air duct 132, respectively, enhancing heat exchange performance.

[0066] Optionally, combined Figure 2 and Figure 5 As shown, multiple first heat pipes 311 and multiple second heat pipes 321 are arranged alternately along the radial direction of the air duct 13.

[0067] The first heat pipe 311 of the first heat pipe unit 31 and the second heat pipe 321 of the second heat pipe unit 32 are arranged axially spaced along the air duct 13. Multiple first heat pipes 311 of the first heat pipe unit 31 are arranged radially spaced along the air duct 13, and multiple second heat pipes 321 of the second heat pipe unit 32 are arranged radially spaced along the air duct 13. The multiple first heat pipes 311 of the first heat pipe unit 31 and the multiple second heat pipes 321 of the second heat pipe unit 32 are alternately arranged radially along the air duct 13, with the multiple first heat pipes 311 and the multiple second heat pipes 321 of the second heat pipe unit 32 mutually filling each other along the radial direction of the air duct 13, effectively contacting all airflow along the radial direction of the air duct 13. This significantly increases the contact area between the heat pipe assembly 30 and the airflow, thereby effectively improving heat exchange efficiency. The staggered arrangement also optimizes the airflow distribution within the air duct 13, reduces airflow resistance, improves the uniformity of airflow, and effectively improves heat exchange efficiency.

[0068] Optionally, combined Figure 3-5 As shown, there are multiple first heat pipe units 31 and multiple second heat pipe units 32, and the multiple first heat pipe units 31 and multiple second heat pipe units 32 are arranged alternately along the axial direction of the air duct 13.

[0069] Multiple first heat pipe units 31 and multiple second heat pipe units 32 are arranged alternately along the axial direction of the air duct 13, allowing the exhaust or supply airflow to alternately pass through these units during its flow within the duct 13. This enables multiple heat exchanges during airflow, ensuring more thorough contact with the heat pipe assembly 30 and thus improving heat exchange efficiency. Simultaneously, the alternating arrangement enhances heat exchange stability. Furthermore, the axial spacing of the multiple first heat pipe units 31 and multiple second heat pipe units 32 along the air duct 13 optimizes airflow organization within the duct 13, reduces airflow resistance, and improves the uniformity of airflow.

[0070] Optionally, combined Figure 2 and Figure 3 As shown, the lengths of the multiple first heat pipes 311 are respectively adapted to the dimensions of the inner wall 101 of the housing.

[0071] The housing 10 has an internal air duct 13. The lengths of multiple first heat pipes 311 are adapted to the dimensions of the inner wall 101 of the housing. This means that the lengths of the multiple first heat pipes 311 are adjusted according to the dimensions of the inner wall 101 of the housing, so that each first heat pipe 311 occupies as much area as possible in the air duct 13 along its own length, maximizing the heat exchange area of ​​the first heat pipe unit 31 and thus improving heat exchange efficiency. Taking a cylindrical housing 10 as an example, the multiple first heat pipes 311 are arranged radially at intervals along the air duct 13, and the lengths of the multiple first heat pipes 311 decrease sequentially from the middle of the air duct 13 towards both ends of the air duct 13. This better adapts to the circular inner wall of the housing 10, ensuring that the lengths of the multiple first heat pipes 311 are adapted to the dimensions of the inner wall 101 of the housing, thereby making the contact between the multiple first heat pipes 311 and the airflow more sufficient.

[0072] Optionally, combined Figure 2 and Figure 3 As shown, the lengths of the multiple second heat pipes 321 are respectively adapted to the dimensions of the inner wall 101 of the housing.

[0073] The lengths of the multiple second heat pipes 321 are adapted to the dimensions of the inner wall 101 of the housing. This means that the lengths of the multiple second heat pipes 321 are adjusted accordingly based on the dimensions of the inner wall 101 of the housing, so that each second heat pipe 321 occupies as much area as possible in the air duct 13 along its own length, maximizing the heat exchange area of ​​the second heat pipe unit 32 and thus improving heat exchange efficiency. Taking a cylindrical housing 10 as an example, the multiple second heat pipes 321 are arranged radially at intervals along the air duct 13, and the lengths of the multiple second heat pipes 321 decrease sequentially from the middle of the air duct 13 towards both ends of the air duct 13. This better adapts to the circular inner wall of the housing 10, ensuring that the lengths of the multiple second heat pipes 321 are adapted to the dimensions of the inner wall 101 of the housing, thereby making the contact between the multiple second heat pipes 321 and the airflow more sufficient.

[0074] Optionally, combined Figure 2 As shown, there is a gap between the first heat pipe 311 and the inner wall 101 of the housing.

[0075] A gap is left between the first heat pipe 311 and the inner wall 101 of the housing, so that the first heat pipe 311 is not in contact with the inner wall 101 of the housing. This can prevent heat from being transferred to the housing 10 through heat conduction, thereby reducing heat loss.

[0076] Optionally, combined Figure 2 As shown, there is a gap between the second heat pipe 321 and the inner wall 101 of the housing.

[0077] A gap is left between the second heat pipe 321 and the inner wall 101 of the housing, so that the second heat pipe 321 is not in contact with the inner wall 101 of the housing. This can prevent heat from being transferred to the housing 10 through heat conduction, thereby reducing heat loss.

[0078] Optionally, combined Figure 3-5 As shown, the through-wall fresh air device also includes a first fan 51 and a second fan 52. The first fan 51 is located in the first sub-air duct 131; the second fan 52 is located in the second sub-air duct 132; wherein, both the first fan 51 and the second fan 52 are reversible fans.

[0079] A first fan 51 is installed in the first sub-duct 131, and a second fan 52 is installed in the second sub-duct 132, which can increase the airflow speed. Both the first fan 51 and the second fan 52 are reversible fans, allowing for flexible adjustment of their rotation direction as needed, enabling rapid switching between air supply and exhaust. The reversible fans have two modes: forward rotation and reverse rotation. Forward rotation is in air supply mode, and reverse rotation is in exhaust mode. Both the first fan 51 and the second fan 52 can be set to either air supply or exhaust mode simultaneously, or one can be set to air supply mode while the other is set to exhaust mode. When rapid removal of indoor heat or odors is needed, both the first fan 51 and the second fan 52 can be set to exhaust mode. This increases the exhaust air volume and improves exhaust efficiency. When a large amount of fresh air needs to be introduced, both the first fan 51 and the second fan 52 can be set to air supply mode. This increases the air supply air volume and improves air supply efficiency. When simultaneous air supply and exhaust are required, the first fan 51 can be set to exhaust mode, and the second fan 52 can be set to air supply mode. This allows for heat recovery from the exhaust airflow and transfer of that heat to the supply airflow. This flexible adjustment method enables the fresh air system to better adapt to different usage scenarios and needs.

[0080] Optionally, combined Figure 3-5 As shown, the through-wall fresh air equipment also includes a first fan 51 and a second fan 52. The first fan 51 is located in the first sub-duct 131; the second fan 52 is located in the second sub-duct 132. The first fan 51 is a unidirectional exhaust fan and the second fan 52 is a unidirectional supply fan.

[0081] A unidirectional exhaust fan is installed in the first sub-duct 131, and a unidirectional supply fan is installed in the second sub-duct 132. This fixes the first sub-duct 131 as the exhaust duct 13 and the second sub-duct 132 as the supply duct 13, ensuring that the exhaust airflow flows unidirectionally within the first sub-duct 131 and the supply airflow flows unidirectionally within the second sub-duct 132. The use of unidirectional supply and supply fans reduces production costs.

[0082] Optionally, combined Figure 3 and Figure 4 As shown, the first fan 51 is inclinedly disposed within the first sub-air duct 131, and the second fan 52 is inclinedly disposed within the second sub-air duct 132.

[0083] By tilting the first fan 51 within the first sub-duct 131 and the second fan 52 within the second sub-duct 132, the space of the first and second sub-ducts 131 can be utilized more fully. This effectively increases the air outlet area of ​​the first and second fans 51 and 52, thereby improving airflow efficiency. When the housing 10 is cylindrical, the partition 20 can divide the duct 13 into two semi-circular first and second sub-ducts 131 and 132. Both the first fan 51 and the second fan 52 can be tilted at a certain angle and fixed to the inner wall 101 of the housing or the partition 20.

[0084] The first fan 51 can be located on the side of the heat pipe assembly 30 near the indoor air vent 11 or on the side of the heat pipe assembly 30 near the outdoor air vent 12. Similarly, the second fan 52 can be located on the side of the heat pipe assembly 30 near the indoor air vent 11 or on the side of the heat pipe assembly 30 near the outdoor air vent 12.

[0085] Optionally, combined Figure 2-4 As shown, the through-wall fresh air device also includes a support member 40, which is located in the air duct 13 and is supported between the heat pipe assembly 30 and the housing 10.

[0086] A support member 40 is installed inside the air duct 13, supporting the heat pipe assembly 30 between the heat pipe assembly 30 and the housing 10. This enhances the stability of the heat pipe assembly 30 and prevents displacement or deformation during operation. The support member 40 also reduces friction between the heat pipe assembly 30 and the housing 10, extending the service life of the heat pipe assembly 30.

[0087] Optionally, the support member 40 is a support plate, which is connected to the housing 10, and the heat pipe assembly 30 passes through the support plate.

[0088] By inserting the heat pipe assembly 30 through the support plate and connecting the support plate to the housing 10, the position of the heat pipe assembly 30 can be effectively fixed to prevent displacement or vibration of the heat pipe during operation, thus effectively enhancing the structural stability of the heat pipe assembly 30.

[0089] Optionally, combined Figure 3-5 As shown, the through-wall fresh air equipment also includes a filter device 60, which is located inside the air duct 13.

[0090] By installing a filter device 60 within the air duct 13, dust, particulate matter, and other impurities in the air can be effectively filtered. This not only improves the quality of fresh air but also reduces the impact of impurities on the heat pipe assembly 30, extending its service life. The filter device 60 can be installed within the first sub-air duct 131, the second sub-air duct 132, or both. This application uses the example of the filter device 60 being installed within both the first and second sub-air ducts 131 and 132. This allows for effective filtration of the fresh air flowing into both sub-air ducts 131 and 132 when both are used as supply air ducts 13. The filter device 60 can be installed near the indoor air outlet 11 of the first fan 51 or the second fan 52, or near the outdoor air outlet 12.

[0091] Optionally, combined Figure 1-5 As shown, the through-wall fresh air equipment also includes an outer cylinder 70, which is fitted on the outside of the shell 10, and the inner wall 71 of the outer cylinder is attached to the outer wall 102 of the shell.

[0092] The outer cylinder 70, fitted onto the outside of the housing 10, provides protection against external environmental factors such as walls, rain, and dust, thereby extending the service life of the housing 10. The inner wall 71 of the outer cylinder fits snugly against the outer wall 102 of the housing. When the first fan 51 or the second fan 52 is turned on, this reduces vibration and noise, improving the stability of the entire fresh air system.

[0093] Optionally, combined Figure 3-5 As shown, the through-wall fresh air equipment also includes an indoor panel 80, which covers the indoor air vent 11, and the indoor panel 80 is provided with a first perforated structure 81 for air intake and exhaust.

[0094] The indoor panel 80 serves a decorative purpose, enhancing the aesthetics of the fresh air system. The indoor panel 80 utilizes the first perforated structure 81 to allow air to enter and exit, preventing interference with the exhaust or supply air of the fresh air system. It also prevents foreign objects from entering the air duct 13, thus ensuring the normal operation of the equipment.

[0095] Optionally, combined Figure 1-5 As shown, the through-wall fresh air equipment also includes an outdoor panel 90, which covers the outdoor air vent 12, and the outdoor panel 90 is provided with a second perforated structure 91 for air intake and exhaust, which is located on the side and / or bottom of the outdoor panel 90.

[0096] The outdoor panel 90 serves a decorative purpose, enhancing the aesthetics of the fresh air system. The outdoor panel 90 utilizes a second perforated structure 91 for air intake and exhaust, preventing interference with the exhaust or supply air of the fresh air system. It also prevents foreign objects from entering the air duct 13, thus avoiding disruption to the system's normal operation. The second perforated structure 91 is located on the side and / or bottom of the outdoor panel 90, effectively preventing outdoor rainwater and debris from entering the outdoor air vent 12 through it.

[0097] Optionally, combined Figure 1 and Figure 3-5 As shown, in the case of a through-wall fresh air system including an outer cylinder 70, an indoor panel 80, and an outdoor panel 90, the front and rear ends of the outer cylinder 70 are connected to the indoor panel 80 and the outdoor panel 90, respectively.

[0098] By connecting the front and rear ends of the outer cylinder 70 to the indoor panel 80 and the outdoor panel 90 respectively, a whole structure is formed, which can effectively enhance the structural stability of the through-wall fresh air equipment.

[0099] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A through-wall fresh air system, characterized in that, include: The shell has an indoor air vent and an outdoor air vent, and the internal structure of the shell has an air duct that connects the indoor air vent and the outdoor air vent. A partition is installed inside the air duct to divide the air duct into a first sub-air duct and a second sub-air duct. Both the first sub-air duct and the second sub-air duct are connected to the indoor air outlet and the outdoor air outlet, respectively. A heat pipe assembly includes a first heat pipe unit, the first heat pipe unit includes a first heat pipe, the first heat pipe passes through a separator, and a first end of the first heat pipe is located in a first sub-duct, a second end of the first heat pipe is located in a second sub-duct, and the first heat pipe contains a working fluid for transferring heat.

2. The through-wall fresh air device according to claim 1, characterized in that, The first heat pipe unit includes multiple first heat pipes, which are arranged radially at intervals along the air duct.

3. The through-wall fresh air device according to claim 2, characterized in that, The heat pipe assembly also includes: The second heat pipe unit includes a second heat pipe, which passes through a separator and has a first end located in a first sub-duct and a second end located in a second sub-duct. The second heat pipe contains a working fluid for transferring heat, and the second heat pipe and the first heat pipe are arranged at intervals along the axial direction of the duct.

4. The through-wall fresh air device according to claim 3, characterized in that, The second heat pipe unit includes multiple second heat pipes, which are arranged radially at intervals along the air duct.

5. The through-wall fresh air device according to claim 4, characterized in that, Multiple first heat pipes and multiple second heat pipes are arranged alternately along the radial direction of the air duct.

6. The through-wall fresh air device according to claim 5, characterized in that, There are multiple first heat pipe units and multiple second heat pipe units, which are arranged alternately along the axial direction of the air duct.

7. The through-wall fresh air device according to claim 4, characterized in that, The lengths of the multiple first heat pipes are respectively adapted to the dimensions of the inner wall of the housing; and / or, The lengths of the multiple second heat pipes are adapted to the dimensions of the inner wall of the casing.

8. The through-wall fresh air device according to claim 4, characterized in that, A gap is left between the first heat pipe and the inner wall of the casing; and / or, A gap is left between the second heat pipe and the inner wall of the casing.

9. The through-wall fresh air device according to any one of claims 1 to 8, characterized in that, Also includes: The first fan is located inside the first sub-air duct; The second fan is located inside the second sub-duct. In this configuration, both the first and second fans are reversible fans, or the first fan is a unidirectional exhaust fan and the second fan is a unidirectional supply fan.

10. The through-wall fresh air device according to any one of claims 1 to 8, characterized in that, Also includes: Support members, located in the air duct, support the heat pipe assembly between the heat pipe assembly and the housing; and / or, Filter devices are installed inside the air duct; and / or, An outer cylinder is fitted onto the outside of the shell, with its inner wall fitting against the outer wall of the shell; and / or, An indoor panel, installed over the indoor air vent, and the indoor panel having a first perforated structure for air intake and exhaust; and / or, An outdoor panel is installed over an outdoor air vent, and the outdoor panel has a second perforated structure for air intake and exhaust, which is located on the side and / or bottom of the outdoor panel.

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