Heat exchange function through-wall fresh air machine based on heat storage core

Abstract

The utility model relates to fresh air equipment technical field, concretely is a kind of heat exchange function wall -penetrating fresh air machine based on heat storage core, including fan panel, filter device, pedestal, axial fan, heat storage core and wall -penetrating pipeline that are sequentially arranged, filter device includes fixed filter core, movable filter core, fixed baffle, movable baffle and limit block, opening is formed in fixed filter core middle part, movable filter core is tubular and located in opening movable and opening constitutes moving pair, convex edge is provided at movable filter core rear end, fixed baffle is arranged at movable filter core front end, movable baffle is located at the both sides of fixed filter core, movable baffle is hinged with convex edge, limit block is connected with convex edge, limit block can resist movable baffle, filter device is divided into fixed filter core and movable filter core, in the process of ventilation, the position of movable filter core is changed to avoid backflushing, dust and filter core are separated, have practical significance and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of fresh air equipment, and in particular to a through-wall fresh air unit with heat exchange function based on a heat storage core. Background Technology

[0002] A wall-mounted fresh air system is a mechanical ventilation device that is directly installed on a wall. It has a heat storage core inside and achieves indoor and outdoor air exchange through forced air supply and exhaust. During the process, the air comes into contact with the heat storage core to achieve heat recovery. It also has the function of dust filtration and air purification. It is suitable for scenarios such as homes and offices that require local ventilation.

[0003] The fresh air system achieves air exchange by circulating air in both forward and reverse directions using an internal fan. During this process, dust carried by the air is trapped and remains on the filter surface. When air is exhausted, the dust is trapped on the filter surface, but when air is drawn in, most of this dust is backflushed and dispersed. This can affect air quality and lead to poor air purification. The purpose of this invention is to propose a fresh air system structure that can solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a wall-mounted fresh air system with heat exchange function based on a heat storage core, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: including a fan panel, a filter device, a base, an axial fan, a heat storage core, and a through-wall pipe arranged in sequence. This is an existing new air fan structure, so its specific structure and working principle will not be further explained, and there will be no problem of unclear description. The heat storage core refers to the core made of heat storage material in the prior art. In specific implementation, it can be made of materials such as ceramic, aluminum, and stainless steel according to actual needs.

[0006] The filtration device includes a fixed filter element, a movable filter element, a fixed baffle, a movable baffle, and a limiting block. The fixed filter element has an opening in the middle. The movable filter element is tubular and located within the opening, forming a movable pair with the opening along the gas flow direction. A raised edge surrounding the movable filter element is provided at its rear end. The fixed baffle is located at the front end of the movable filter element. The movable baffle is symmetrically distributed on both sides of the fixed filter element and is hinged to the raised edge. The limiting block is connected to the raised edge and can abut against the movable baffle. The fixed filter element and the movable filter element refer to filter elements that are fixed in position and movable. The specific material and structure of the filter element are not the technical content that the applicant seeks to protect, so they will not be described further. In specific implementation, technicians can choose according to factors such as production process requirements or manufacturing costs, which will not have a substantial impact on the technical effect.

[0007] To optimize the above technical solution, the following measures are further taken: an external wall rain cover is installed at the end of the through-wall pipe. The purpose of the rain cover is to block rainwater and prevent rainwater from flowing back from the end of the through-wall pipe.

[0008] As a further improvement to the above technical solution: the movable baffles are located on the left and right sides of the fixed filter element, and the movable baffles set on the left and right sides can avoid the influence of gravity on the rotation of the movable baffles.

[0009] As a further improvement to the technical solution: a connecting rod is provided on the rear side of the fan panel. The connecting rod passes through the base and forms a moving pair with the base along the gas flow direction, providing moving space for the movable filter element by moving the fan panel.

[0010] As an improvement to the aforementioned technical solution, the connecting rod is provided with a protrusion for abutting against the base. By providing the protrusion to abut against the base, a gap is ensured between the fan panel and the base for airflow.

[0011] Furthermore, the base and the fan panel are embedded with mutually attractive magnets. The mutual attraction of the magnets allows the fan panel to move closer to the base, while simultaneously resetting the fixed filter element. In practice, the attraction between the magnets can be adjusted by changing the material and specifications of the magnets.

[0012] As an improvement to the aforementioned technical solution: the heat storage core is provided with a channel that runs through the heat storage core along its length. The channel is composed of multiple units. The longitudinal cross-sectional area in the middle of the unit is larger than that on both sides. The middle of the unit and the two sides of the unit are connected by an inclined plane. During the flow along the channel, the air is constricted and compressed on both sides of the unit. When the air flows to the middle of the unit, the degree of turbulence of the air dissipates and collides with the heat storage core. This structural design helps to improve the collision between the air and the heat storage core and prolong the residence time of the air in the heat storage core to improve the heat exchange efficiency.

[0013] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: This utility model provides a wall-mounted fresh air unit with heat exchange function based on a heat storage core. The filtration device is divided into a fixed filter element and a movable filter element. During the ventilation process, the position of the movable filter element is changed to avoid backflow that would cause dust to separate from the filter element. This has practical significance and promotional value. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention (in an exploded state). Figure 2 A schematic diagram of the cut-off structure of the filter device; In the diagram: Fan panel-1, Filter device-2, Fixed filter element-201, Movable filter element-202, Fixed baffle-203, Movable baffle-204, Limiting block-205, Opening-206, Raised edge-207, Exterior wall rainproof cover-208, Connecting rod-209, Protrusion-2010, Base-3, Axial flow fan-4, Heat storage core-5, Channel-501, Unit-502, Through-wall pipe-6 Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example Please see Figure 1 and Figure 2 This utility model provides a wall-penetrating fresh air fan with heat exchange function based on a heat storage core, including a fan panel 1, a filter device 2, a base 3, an axial fan 4, a heat storage core 5, and a wall-penetrating pipe 6 arranged in sequence. The heat storage core 5 has a channel 501 that runs through the heat storage core along its length. The channel 501 is composed of a plurality of units 502. The longitudinal cross-sectional area of ​​the middle part of the unit 502 is larger than the longitudinal cross-sectional area of ​​the two sides. The middle part of the unit 502 and the two sides of the unit 502 are connected by an inclined surface.

[0016] A connecting rod 209 is provided on the rear side of the fan panel 1. The connecting rod 209 passes through the base 3 and forms a moving pair with the base 3 along the gas flow direction. A protrusion 2010 for abutting the base 3 is provided on the connecting rod 209. Magnet blocks that attract each other are embedded in the base 3 and the fan panel 1. An external wall rain cover 208 for shielding rainwater is provided at the end of the through-wall pipe 6.

[0017] The filter device 2 includes a fixed filter element 201, a movable filter element 202, a fixed baffle 203, a movable baffle 204, and a limiting block 205. The fixed filter element 201 has an opening 206 in the middle. The movable filter element 202 is tubular and located in the opening 206, and can move to form a sliding pair with the opening 206 along the gas flow direction. The rear end of the movable filter element 202 is provided with a protruding edge 207 surrounding the movable filter element 202. The fixed baffle 203 is provided at the front end of the movable filter element 202. The movable baffle 204 is symmetrically distributed on the left and right sides of the fixed filter element 201. The movable baffle 204 is hinged to the protruding edge 207. The limiting block 205 is connected to the protruding edge 207, and the limiting block 205 can abut against the movable baffle 204.

[0018] Working principle: When the indoor temperature is lower than the outdoor temperature (cooling), the axial fan 4 exhausts indoor air, which can cool the heat storage core 5. When the axial fan 4 runs in the opposite direction to draw in outdoor air, the heat storage core 5 can cool the drawn-in outdoor air, thus avoiding the indoor temperature from rising due to ventilation and avoiding increased energy consumption of the cooling equipment.

[0019] When the indoor temperature is higher than the outdoor temperature (heating), the air can heat the heat storage core 5 when the axial fan 4 exhausts indoor air. When the axial fan 4 runs in the opposite direction to draw in outdoor air, the heat storage core 5 can heat the drawn-in outdoor air, thus avoiding the indoor temperature drop caused by ventilation and avoiding increased energy consumption of the heating equipment.

[0020] When the axial flow fan 4 exhausts air, the air can pass through the fixed filter element 201. During the process, dust can be blocked by the fixed filter element 201 and adhere to it. At this time, the fixed baffle 203 blocks the movable filter element 202, so the movable filter element 202 will not be affected by the exhaust air. This can prevent the exhaust air from backflowing onto the movable filter element 202, causing the dust on the surface of the movable filter element 202 to separate from the movable filter element 202. In addition, the exhaust air can push the movable baffle 204 to move closer together, so the movable baffle 204 will not affect the exhaust air flow.

[0021] When the axial flow fan 4 draws in air, the air can push the movable baffle 204. At this time, the movable baffle 204 is supported by the limiting block 205, which will drive the fixed filter element 201 to move along the opening 206. At this time, the movable baffle 204 can block the fixed filter element 201, so that the airflow is concentrated and passes through the movable filter element 202, avoiding the backflow of the drawn-in airflow from the fixed filter element 201, which would cause the dust on the surface of the fixed filter element 201 to separate from the fixed filter element 201.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wall-mounted fresh air system with heat exchange function based on a heat storage core, characterized in that: It includes a fan panel (1), a filter device (2), a base (3), an axial fan (4), a heat storage core (5), and a through-wall pipe (6) arranged in sequence. The filtration device (2) includes a fixed filter element (201), a movable filter element (202), a fixed baffle (203), a movable baffle (204), and a limiting block (205). An opening (206) is formed in the middle of the fixed filter element (201); The movable filter element (202) is tubular and located inside the opening (206). It can move and form a moving pair with the opening (206) along the gas flow direction. The rear end of the movable filter element (202) is provided with a protruding edge (207) surrounding the movable filter element (202). The fixed baffle (203) is disposed at the front end of the movable filter element (202); The movable baffle (204) is symmetrically distributed on both sides of the fixed filter element (201), and the movable baffle (204) is hinged to the protrusion (207); The limiting block (205) is connected to the protruding edge (207), and the limiting block (205) can abut against the movable baffle (204).

2. A through-wall fresh air system based on a heat storage core and heat exchange function as described in claim 1, characterized in that: The end of the through-wall pipe (6) is provided with an external wall rain cover (208).

3. A through-wall fresh air system with heat exchange function based on a heat storage core as described in claim 1, characterized in that: The movable baffle (204) is located on the left and right sides of the fixed filter element (201).

4. A through-wall fresh air system with heat exchange function based on a heat storage core according to any one of claims 1-3, characterized in that: A connecting rod (209) is provided on the rear side of the fan panel (1). The connecting rod (209) passes through the base (3) and forms a sliding pair with the base (3) along the gas flow direction.

5. A wall-mounted fresh air system with heat exchange function based on a heat storage core as described in claim 4, characterized in that: The connecting rod (209) is provided with a protrusion (2010) for abutting against the base (3).

6. A wall-mounted fresh air system with heat exchange function based on a heat storage core according to claim 4, characterized in that: The base (3) and the fan panel (1) are embedded with mutually attractive magnets.

7. A through-wall fresh air system with heat exchange function based on a heat storage core according to any one of claims 1-3, characterized in that: The heat storage core (5) has a channel (501) that runs through the heat storage core along its length. The channel (501) is composed of a plurality of units (502). The longitudinal cross-sectional area of ​​the middle part of the unit (502) is larger than the longitudinal cross-sectional area on both sides. The middle part of the unit (502) and the two sides of the unit (502) are connected by an inclined surface.

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