Small-size cross-flow fresh air ventilator

Abstract

The utility model relates to the technical field of fresh air heat exchange, in particular to a small-size cross-flow fresh air ventilator, which mainly comprises a fresh air inlet, a filter, a heat exchanger, an exhaust air inlet, an exhaust air outlet, an exhaust air fan, a fresh air fan and a fresh air outlet, according to the small-size cross-flow fresh air ventilator, all parts in the ventilator are arranged compactly, the fresh air path and the exhaust air path are crossed but not mixed in the heat exchanger, the two air paths are both in the horizontal direction while sufficient heat exchange efficiency is guaranteed, and resistance and uneven distribution of air in the air paths are reduced; the independent vertically-mounted fans are arranged for the two air paths, the vertically-mounted fans can reduce the occupied volume in the ventilator, the two fans are arranged on the same side of the ventilator and are arranged at the tail ends of the respective air paths, and air enters the fans in the horizontal direction, so that air flow is smoother and more uniform, rapid inlet and outlet of air are achieved, and the ventilation efficiency is improved. The air volume requirement is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air heat exchange, in particular to a small-volume cross-flow fresh air ventilator. Background Art

[0002] The primary function of a fresh air ventilator is to replenish fresh air into the room and expel stale air. In this process, it utilizes a heat exchanger to recover heat or cooling. Therefore, the proper design of the various functional components within the fresh air ventilator is crucial for achieving efficient heat exchange. Essential components include filters, heat exchangers, fans, and air paths formed by baffles of varying structures. These components and their design lead to a complex and bulky fresh air ventilator, making it difficult to install in space-constrained locations. However, small fresh air ventilators, due to limited internal space, often suffer from inefficient air path design and poor heat exchange.

[0003] Chinese patent CN 219889752 U discloses a housing assembly and a fresh air blower. The fresh air blower housing includes an air guide component having an air guide surface. The air guide surface can guide the airflow flowing along the corresponding airflow path to the corresponding blower cavity. The airflow flows smoothly and is less likely to form turbulence, which can reduce the load of the blower disposed in the corresponding blower cavity and thus reduce the energy consumption of the fresh air blower. However, the two fans in the heat exchange device are horizontally designed and occupy a large internal space of the fresh air blower. The remaining space requires the placement of several baffles, partitions, and guides to construct an air path. Core components such as the heat exchange core and filter must also be rationally planned, which inevitably leads to an unsmooth air path and affects the heat exchange effect. Utility Model Content

[0004] Existing fresh air ventilators are generally large in size and limited in use scenarios, and small-volume fresh air ventilators have the disadvantage of low heat exchange efficiency due to their small size. To address this problem, the utility model provides a small-volume cross-flow fresh air ventilator, whose main body (1) is a rectangular parallelepiped, including a lower cover plate (1-1), an upper cover plate (1-2), a first side plate (1-3), a second side plate (1-4), a third side plate (1-5) and a fourth side plate (1-6). The interior of the main body (1) is divided into a heat exchange area (2) and a power area (3);

[0005] The heat exchange area (2) includes a fresh air inlet (2-1), a filter (2-2), a heat exchanger (2-3) and an exhaust air inlet (2-5). The fresh air inlet (2-1) is arranged on the outside of the fourth side plate (1-6). The two vertical sides of the front side of the filter (2-2) are respectively sealed and connected to the inner walls of the first side plate (1-3) and the fourth side plate (1-6). The back side of the filter (2-2) is in contact with the heat exchanger (2-3). The first side plate (1-3), the second side plate (1-4) and the fourth side plate (1-6) are respectively fixedly connected with vertical partitions (2-4). The end of each vertical partition (2-4) is provided with a limiting groove. The three edges of the heat exchanger (2-3) are respectively stuck in the corresponding limiting groove. The exhaust air inlet (2-5) is arranged on the outside of the second side plate (1-4). The outer surface of the fourth side plate (1-6) is provided with a main board (1-8).

[0006] The power zone (3) includes an exhaust outlet (3-1), an exhaust fan (3-2), a fresh air fan (3-4) and a fresh air outlet (3-5). The exhaust outlet (3-1) is arranged on the outside of the fourth side plate (1-6). The exhaust fan (3-2) is located inside the exhaust outlet (3-1). The exhaust fan (3-2) is fixed on the third side plate (1-5) and is perpendicular to the upper cover plate (1-2). The fresh air outlet (3-5) is arranged on the outside of the second side plate (1-4). The fresh air outlet (3-1) is located on the outside of the fourth side plate (1-6). 5) The inside is a fresh air fan (3-4), which is fixed on the third side plate (1-5) and perpendicular to the upper cover plate (1-2). A fan partition (3-3) is provided between the exhaust fan (3-2) and the fresh air fan (3-4). The three sides of the fan partition (3-3) are respectively sealed and fixedly connected to the lower cover plate (1-1), the third side plate (1-5) and the upper cover plate (1-2). A limiting groove is provided on the fourth side, and the fourth edge of the heat exchanger (2-3) is stuck in the limiting groove.

[0007] Furthermore, the first side panel (1-3) and the third side panel (1-5) are provided with hanging feet (1-7). The provision of the hanging feet facilitates the installation of the ventilator on the top wall, avoids the need to construct supporting peripherals, and gives full play to the advantage of the small size of the utility model.

[0008] Furthermore, an inspection port (1-9) is provided on the lower cover plate (1-1). The heat exchanger of the heat exchanger and ventilator of the utility model is detachable, and the inspection port is provided directly above the heat exchanger, which facilitates the inspection and replacement of the heat exchanger.

[0009] The beneficial effects of the present invention are:

[0010] 1. The internal components of the small-volume cross-flow fresh air ventilator of this utility model are compactly arranged. The filter and heat exchanger are closely arranged, which reduces the air path of the filtered fresh air. The four sides of the heat exchanger face the four functional areas respectively, further reducing the length of the air path. The fresh air path and the exhaust air path cross in the heat exchanger but do not mix, ensuring sufficient heat exchange efficiency. At the same time, both air paths are in a horizontal direction, reducing the resistance and uneven distribution of air in the air path;

[0011] 2. The utility model provides two independent vertically mounted fans for the two air passages. The vertically mounted fans can reduce the volume occupied in the ventilator. The two fans are arranged on the same side of the ventilator and at the end of their respective air passages. The air inlets of the fans are all in a horizontal direction, making the air flow smoother and more uniform, realizing rapid air in and out, and ensuring the air volume requirements.

[0012] The above two beneficial effects enable the heat exchanger and ventilator of the present invention to achieve the two technical goals of small size and high heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a bottom view of the internal structure of the small-volume cross-flow fresh air ventilator of the present invention.

[0014] Figure 2 This is a plan view of the internal structure of the small-volume cross-flow fresh air ventilator of the present invention.

[0015] Figure 3 This is a bottom view of the exterior of the small-volume cross-flow fresh air ventilator of the present invention.

[0016] The parts are:

[0017] 1. Main body, 1-1. Lower cover, 1-2. Upper cover, 1-3. First side panel, 1-4. Second side panel, 1-5. Third side panel, 1-6. Fourth side panel, 1-7. Lifting foot, 1-8. Main board, 1-9. Inspection port;

[0018] 2. Heat exchange area, 2-1, fresh air inlet, 2-2, filter, 2-3, heat exchanger, 2-4, vertical partition, 2-5, exhaust air inlet;

[0019] 3. Power area, 3-1. Exhaust outlet, 3-2. Exhaust fan, 3-3. Fan partition, 3-4. Fresh air fan, 3-5. Fresh air outlet.

[0020] Figure 4 This is a schematic diagram of the internal structure of the heat exchanger of the present invention. DETAILED DESCRIPTION

[0021] The present invention is described below with reference to examples. The examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, the utility model provides a small-volume cross-flow fresh air ventilator, whose main body 1 is a rectangular parallelepiped, including a lower cover plate 1-1, an upper cover plate 1-2, a first side plate 1-3, a second side plate 1-4, a third side plate 1-5 and a fourth side plate 1-6, characterized in that the interior of the main body 1 is divided into a heat exchange area 2 and a power area 3;

[0023] The heat exchange area 2 includes a fresh air inlet 2-1, a filter 2-2, a heat exchanger 2-3 and an exhaust air inlet 2-5. The fresh air inlet 2-1 is arranged on the outside of the fourth side panel 1-6. The two vertical sides of the front side of the filter 2-2 are respectively sealed with the inner walls of the first side panel 1-3 and the fourth side panel 1-6. The back side of the filter 2-2 is in contact with the heat exchanger 2-3. The first side panel 1-3, the second side panel 1-4 and the fourth side panel 1-6 are respectively fixedly connected with vertical partitions 2-4. The end of each vertical partition 2-4 is provided with a limiting groove. The three edges of the heat exchanger 2-3 are respectively stuck in the corresponding limiting grooves. The exhaust air inlet 2-5 is arranged on the outside of the second side panel 1-4. The first side panel 1-3 and the third side panel 1-5 are provided with lifting feet 1-7. The outer surface of the fourth side panel 1-6 is provided with a main board 1-8, and the lower cover 1-1 is provided with an inspection port 1-9;

[0024] The power zone 3 includes an exhaust outlet 3-1, an exhaust fan 3-2, a fresh air fan 3-4 and a fresh air outlet 3-5. The exhaust outlet 3-1 is arranged on the outside of the fourth side panel 1-6, and the exhaust fan 3-2 is on the inside of the exhaust outlet 3-1. The exhaust fan 3-2 is fixed on the third side panel 1-5 and is perpendicular to the upper cover 1-2. The fresh air outlet 3-5 is arranged on the outside of the second side panel 1-4, and the fresh air fan 3-4 is on the inside of the fresh air outlet 3-5. The fresh air fan 3-4 is fixed on the third side panel 1-5 and is perpendicular to the upper cover 1-2. A fan partition 3-3 is provided between the exhaust fan 3-2 and the fresh air fan 3-4. The three sides of the fan partition 3-3 are respectively sealed and fixedly connected to the lower cover 1-1, the third side panel 1-5 and the upper cover 1-2. A limiting groove is provided on the fourth side, and the fourth edge of the heat exchanger 2-3 is stuck in the limiting groove.

[0025] In the present invention, the optional structure of the heat exchanger 2-3 is as follows Figure 4 As shown, the interior of heat exchanger 2-3 consists of multiple layers of channels laid out in a warp and weft direction, separated by a thermally conductive film. Each layer of channels is then evenly divided into a number of through-holes. Heat exchanger 2-3 with this structure allows air to enter and exit only from two opposing sides, achieving the effect of intersecting fresh air and exhaust air paths within heat exchanger 2-3, allowing for sufficient heat exchange without mixing.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A small-volume cross-flow fresh air ventilator, wherein the main body (1) is a rectangular parallelepiped, comprising a lower cover plate (1-1), an upper cover plate (1-2), a first side plate (1-3), a second side plate (1-4), a third side plate (1-5) and a fourth side plate (1-6), characterized in that: The interior of the main body (1) is divided into a heat exchange area (2) and a power area (3); The heat exchange area (2) includes a fresh air inlet (2-1), a filter (2-2), a heat exchanger (2-3) and an exhaust air inlet (2-5), wherein the fresh air inlet (2-1) is arranged on the outside of the fourth side plate (1-6), the two vertical sides of the front side of the filter (2-2) are respectively sealed with the inner walls of the first side plate (1-3) and the fourth side plate (1-6), and the back side of the filter (2-2) is in contact with the heat exchanger (2-3), and the first side plate (1-3), the second side plate (1-4) and the fourth side plate (1-6) are respectively fixedly connected with vertical partitions (2-4), and the end of each vertical partition (2-4) is provided with a limiting groove, and the three edges of the heat exchanger (2-3) are respectively stuck in the corresponding limiting grooves, and the exhaust air inlet (2-5) is arranged on the outside of the second side plate (1-4), and the outer surface of the fourth side plate (1-6) is provided with a main board (1-8); The power zone (3) includes an exhaust outlet (3-1), an exhaust fan (3-2), a fresh air fan (3-4) and a fresh air outlet (3-5), wherein the exhaust outlet (3-1) is arranged on the outside of the fourth side panel (1-6), the exhaust fan (3-2) is located inside the exhaust outlet (3-1), the exhaust fan (3-2) is fixed on the third side panel (1-5) and is perpendicular to the upper cover (1-2), the fresh air outlet (3-5) is arranged on the outside of the second side panel (1-4), and the fresh air outlet (3 -5) is provided on the inner side of the fresh air fan (3-4), the fresh air fan (3-4) being fixed on the third side plate (1-5) and perpendicular to the upper cover plate (1-2), a fan partition (3-3) being provided between the exhaust fan (3-2) and the fresh air fan (3-4), the three sides of the fan partition (3-3) being respectively and sealed and fixedly connected to the lower cover plate (1-1), the third side plate (1-5) and the upper cover plate (1-2), a limiting groove being provided on the fourth side, and the fourth edge of the heat exchanger (2-3) being stuck in the limiting groove.

2. The small-volume cross-flow fresh air ventilator according to claim 1, characterized in that: The first side panel (1-3) and the third side panel (1-5) are provided with lifting feet (1-7).

3. The small-volume cross-flow fresh air ventilator according to claim 1 or 2, characterized in that: An inspection opening (1-9) is provided on the lower cover plate (1-1).

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