Small-size fresh air ventilator

Abstract

The utility model relates to the technical field of fresh air heat exchange, in particular to a small-size fresh air ventilator which mainly comprises a fresh air inlet, a filter, an exhaust air inlet, a heat exchanger, a fresh air outlet, a fresh air fan, an exhaust fan and an exhaust air outlet. The independent fresh air path and the exhaust air path are reasonably designed in a small space, specifically, the exhaust air inlet path is isolated below the fresh air inlet path through the transverse partition plate and the vertical partition plate, and fresh air and exhaust air are crossed but not mixed in the heat exchanger through the fan partition plate, the fresh air baffle and the exhaust air baffle in combination with the heat exchanger which is obliquely arranged. In addition, due to the design of a fresh air inlet path and an exhaust air inlet path which are vertically and horizontally separated in the air inlet area and a vertically-installed fan, the size occupied by components on the fresh air ventilator can be effectively reduced, and the fresh air ventilator has the advantage of being small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air heat exchange, in particular to a small-sized 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, a heat exchanger is used to recover heat or cooling from the room. Therefore, the proper placement of the various functional components within the fresh air ventilator is crucial for efficient heat exchange. Typically, the essential components within a fresh air ventilator are 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 inadequate air path design and poor heat exchange performance.

[0003] Chinese patent CN 214701114 U discloses a heat exchange device with the advantage of a small size. By providing a partition structure to isolate the supply and exhaust air spaces, this device reduces turbulence in the exhaust and supply air spaces of the heat exchange device, thereby improving air flow in the downstream sides of the supply and exhaust air paths, significantly improving the heat exchange capacity of the heat exchange device. However, the heat exchange device only has one fan, with the air inlet and exhaust shared by a single power source. Furthermore, the air inlet faces the longitudinal partition, resulting in significant air path obstruction and dead angles, which affect heat exchange efficiency. Utility Model Content

[0004] Existing fresh air ventilators are generally large in size, which limits their usage scenarios. Small-sized 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-sized fresh air ventilator, whose main body is a rectangular parallelepiped, including an upper cover plate, a lower cover plate, a first side plate, a second side plate, a third side plate and a fourth side plate, which are divided into an air inlet area, a heat exchange area and a power area from the first side plate to the third side plate.

[0005] The air inlet area includes a fresh air inlet, a filter, a horizontal partition, a vertical partition, and an exhaust inlet. The fresh air inlet is arranged on the outside of the second side panel, and the exhaust inlet is arranged on the outside of the fourth side panel. The vertical partition is fixed to the lower cover plate along the diagonal direction of the air inlet area from the angle between the first and fourth side panels, and its two ends are tightly connected to the second and fourth side panels. The horizontal partition is a right triangle, and its hypotenuse is tightly connected to the upper edge of the vertical partition. The long straight side and the short straight side are tightly connected to the heat exchange area and the fourth side panel respectively. The horizontal partition and the vertical partition can separate the air duct into upper and lower parts in the vertical direction and left and right parts in the horizontal direction. The filter is tightly fixed to the horizontal partition, flush with the long straight side of the horizontal partition, and tightly connected to the second side panel, the upper cover plate, and the fourth side panel. The first and third side panels are provided with lifting feet. The lifting feet can be used to hang the fresh air fan at different heights, which can reasonably adapt to the heat exchange requirements of different spaces.

[0006] A heat exchanger is provided in the heat exchange area. The heat exchanger is in the shape of a rectangular parallelepiped, with the upper and lower edges respectively embedded in the grooves of the upper limit bar and the lower limit bar, which are fixed to the upper cover and the lower cover respectively. The edge of the heat exchanger on the side close to the air inlet area is in contact with the long straight side of the transverse partition. In the present utility model, the heat exchanger is divided into two parts. The upper limit bar is only adapted to one part. An inspection port is provided on the upper cover directly above the other part. The inside of the inspection port is provided with the same groove as the upper limit bar, and it plays the same limiting role for the heat exchanger. When the heat exchange capacity of the heat exchanger decreases and needs to be replaced or cleaned, the inspection port is removed, the half of the heat exchanger at the notch is removed, and the other half of the heat exchanger adapted to the upper limit bar is moved horizontally to the notch and removed. The two parts of the new heat exchanger are installed separately, thus completing the quick and convenient replacement or reinstallation of the heat exchanger.

[0007] The power zone includes a fresh air outlet, a fresh air fan, an exhaust fan and an exhaust outlet. The fresh air outlet is arranged on the outside of the fourth side panel, and the exhaust outlet is arranged on the outside of the second side panel. The fresh air fan is arranged on the inside of the fresh air outlet, and the exhaust fan is arranged on the inside of the exhaust outlet. The bases of the fresh air fan and the exhaust fan are fixed on the lower cover plate and are both installed vertically. A fan partition is arranged between the two. The three sides of the fan partition are respectively sealed with the upper cover plate, the lower cover plate and the third side plate, and the fourth side is vertically in contact with the edge of the heat exchanger. A fresh air baffle is arranged between the fresh air fan and the heat exchanger. The three sides of the fresh air baffle are respectively sealed with the fan partition, the upper cover plate and the fourth side plate, and the fourth side is in contact with the edge of the heat exchanger. An exhaust baffle is arranged between the exhaust fan and the heat exchanger. The three sides of the exhaust baffle are respectively sealed with the fan partition, the lower cover plate and the second side plate, and the fourth side is in contact with the edge of the heat exchanger.

[0008] A mainboard is provided on the outer side surface of the fourth side panel, and the mainboard is used to provide power and drive and connect to the wired controller.

[0009] Specifically, according to the actual length-to-width ratio and air volume requirements of the fresh air fan, adjusting the angle can optimize the air path design, reduce wind resistance and increase heat exchange effect. In the present utility model, the angle between the vertical partition and the first side panel is 15°~45°.

[0010] The beneficial effects of the present invention are:

[0011] 1. The small-sized fresh air ventilator of the utility model rationally designs independent fresh air duct and exhaust air duct in a smaller space. Specifically, the exhaust air inlet duct is isolated from the fresh air inlet duct by horizontal partitions and vertical partitions, combined with an inclined heat exchanger, and then the fresh air and exhaust air are crossed in the heat exchanger but not mixed by the fan partition, fresh air baffle and exhaust baffle, thereby achieving the best heat exchange effect.

[0012] 2. The horizontal partition and vertical partition of the air inlet area of ​​the utility model can not only separate the air duct into two parts in the vertical direction, but also separate the air duct into two parts in the horizontal direction. The two air inlet paths of fresh air and exhaust air are completely isolated, and the space occupied by the ventilator can be minimized to the greatest extent, which significantly reduces the size of the ventilator.

[0013] 3. The utility model sets independent vertical fans for the two air paths. The vertical fans can reduce the occupied volume in the ventilator. The two fans are set on the same side of the ventilator and are at the end of their respective air paths. The air inlets of the fans are all in the horizontal direction, thereby reducing the wind resistance of the air paths and making the air flow smoother and more uniform; achieving sufficient heat exchange of the small-sized fresh air ventilator.

[0014] The above three beneficial effects enable the fresh air ventilator of the present invention to achieve the two technical goals of small size and efficient heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the small-sized fresh air ventilator of the present invention.

[0016] Figure 2 This is a bottom view of the small-sized fresh air ventilator of the present invention.

[0017] Figure 3 This is a top view of the internal structure of the small-sized fresh air ventilator of the present invention.

[0018] Figure 4 This is a top view of the exterior of the small-sized fresh air ventilator of the present invention.

[0019] The parts are:

[0020] 1. Main body, 1-1. Upper cover, 1-2. Lower 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;

[0021] 2. Air intake area, 2-1, fresh air inlet, 2-2, filter, 2-3, horizontal partition, 2-4, vertical partition, 2-5, exhaust air inlet;

[0022] 3. Heat exchange area, 3-1, heat exchanger, 3-2, upper limit bar, 3-3, lower limit bar;

[0023] 4. Power zone, 4-1. Fresh air outlet, 4-2. Fresh air fan, 4-3. Fan partition, 4-4. Fresh air baffle, 4-5. Exhaust fan, 4-6. Exhaust outlet, 4-7. Exhaust baffle. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model provides a small-sized fresh air ventilator, such as Figure 1 and Figure 2 As shown, the small-sized fresh air ventilator is generally in the shape of a rectangular parallelepiped, including an upper cover plate 1-1, a lower 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. From the first side plate 1-3 to the third side plate 1-5, it is divided into an air inlet area 2, a heat exchange area 3 and a power area 4;

[0026] The air inlet area 2 includes a fresh air inlet 2-1, a filter 2-2, a transverse partition 2-3, a vertical partition 2-4 and an exhaust air inlet 2-5. The fresh air inlet 2-1 is arranged on the outside of the second side panel 1-4, and the exhaust air inlet 2-5 is arranged on the outside of the fourth side panel 1-6. The vertical partition 2-4 is fixed to the lower cover 1-2 along the diagonal direction of the air inlet area 2 from the angle between the first side panel 1-3 and the fourth side panel 1-6, and the two ends are tightly connected with the second side panel 1-4 and the fourth side panel 1-6. It is a right triangle, with its hypotenuse tightly connected to the upper edge of the vertical partition 2-4, and its long and short straight sides tightly connected to the heat exchange area 3 and the fourth side panel 1-6, respectively. The filter 2-2 is tightly fixed to the transverse partition 2-3, flush with the long straight side of the transverse partition 2-3, and tightly connected to the second side panel 1-4, the upper cover 1-1, and the fourth side panel 1-6. The first side panel 1-3 and the third side panel 1-5 are provided with lifting feet 1-7, and the outer surface of the fourth side panel 1-6 is provided with a main panel 1-8.

[0027] A replaceable heat exchanger 3-1 is provided in the heat exchange area 3. The heat exchanger 3-1 is in the shape of a rectangular parallelepiped, with its upper and lower edges respectively embedded in the grooves of the upper limit bar 3-2 and the lower limit bar 3-3. The upper limit bar 3-2 and the lower limit bar 3-3 are respectively fixed to the upper cover plate 1-1 and the lower cover plate 1-2. The edge of the heat exchanger 3-1 on the side close to the air inlet area 2 is aligned with the long straight side of the transverse partition 2-3.

[0028] The power zone 4 includes a fresh air outlet 4-1, a fresh air fan 4-2, an exhaust fan 4-5 and an exhaust outlet 4-6. The fresh air outlet 4-1 is arranged on the outside of the fourth side plate 1-6, and the exhaust outlet 4-6 is arranged on the outside of the second side plate 1-4. The fresh air fan 4-2 is arranged on the inside of the fresh air outlet 4-1, and the exhaust fan 4-5 is arranged on the inside of the exhaust outlet 4-6. The bases of the fresh air fan 4-2 and the exhaust fan 4-5 are both fixed on the lower cover 1-2, and a fan partition 4-3 is arranged between the two. The three sides of the fan partition 4-3 are respectively connected to the upper cover 1-1, the lower cover 1-2, and the third side plate 1-5. Closed connection, the fourth side is in vertical contact with the edge of the heat exchanger 3-1, a fresh air baffle 4-4 is provided between the fresh air fan 4-2 and the heat exchanger 3-1, the three sides of the fresh air baffle 4-4 are respectively sealed with the fan partition 4-3, the upper cover 1-1 and the fourth side plate 1-6, and the fourth side is in contact with the edge of the heat exchanger 3-1, an exhaust baffle 4-7 is provided between the exhaust fan 4-5 and the heat exchanger 3-1, the three sides of the exhaust baffle 4-7 are respectively sealed with the fan partition 4-3, the lower cover 1-2 and the second side plate 1-4, and the fourth side is in contact with the edge of the heat exchanger 3-1, the details of the power zone are as follows Figure 3 shown.

[0029] A number of lifting feet 1-7 are horizontally arranged on the first side panel 1-3 and the third side panel 1-5, so that the fresh air fan can be suspended, reducing the floor space while meeting the heat exchange requirements of different spaces.

[0030] like Figure 4 As shown, an inspection port 1-9 is provided on the lower cover plate, and the inspection port 1-9 is close to the main board 1-8, which is convenient for maintenance and replacement of the heat exchanger 3-1 and the filter 2-2.

[0031] 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-sized fresh air ventilator, wherein the main body (1) is a rectangular parallelepiped, comprising an upper cover plate (1-1), a lower 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: From the first side plate (1-3) to the third side plate (1-5), it is divided into an air inlet area (2), a heat exchange area (3) and a power area (4); The air inlet area (2) comprises a fresh air inlet (2-1), a filter (2-2), a transverse partition (2-3), a vertical partition (2-4) and an exhaust air inlet (2-5). The fresh air inlet (2-1) is arranged outside the second side plate (1-4), the exhaust air inlet (2-5) is arranged outside the fourth side plate (1-6), and the vertical partition (2-4) is fixed to the lower cover plate (1-2) along the diagonal direction of the air inlet area (2) from the angle between the first side plate (1-3) and the fourth side plate (1-6). The transverse partition (2-3) is tightly connected to the second side plate (1-4) and the fourth side plate (1-6); the transverse partition (2-3) is a right triangle, the hypotenuse of which is tightly connected to the upper edge of the vertical partition (2-4); the long straight side and the short straight side are tightly connected to the heat exchange area (3) and the fourth side plate (1-6), respectively; the filter (2-2) is tightly fixed on the transverse partition (2-3), flush with the long straight side of the transverse partition (2-3), and tightly connected to the second side plate (1-4), the upper cover plate (1-1) and the fourth side plate (1-6); A heat exchanger (3-1) is provided in the heat exchange area (3), and the heat exchanger (3-1) is in the shape of a rectangular parallelepiped, with upper and lower edges respectively embedded in grooves of an upper limit bar (3-2) and a lower limit bar (3-3), the upper limit bar (3-2) and the lower limit bar (3-3) being respectively fixed on the upper cover plate (1-1) and the lower cover plate (1-2), and the edge of the heat exchanger (3-1) on the side close to the air inlet area (2) is in contact with the long straight side of the transverse partition (2-3); The power zone (4) includes a fresh air outlet (4-1), a fresh air fan (4-2), an exhaust fan (4-5) and an exhaust outlet (4-6), wherein the fresh air outlet (4-1) is arranged on the outside of the fourth side plate (1-6), the exhaust outlet (4-6) is arranged on the outside of the second side plate (1-4), the fresh air fan (4-2) is arranged on the inside of the fresh air outlet (4-1), and the exhaust fan (4-5) is arranged on the inside of the exhaust outlet (4-6), the bases of the fresh air fan (4-2) and the exhaust fan (4-5) are both fixed on the lower cover plate (1-2), and a fan partition (4-3) is arranged between the two, and the three sides of the fan partition (4-3) are respectively connected to the upper cover plate (1-1) and the lower cover plate (1-2). ), the third side plate (1-5) is tightly connected, and the fourth side is in vertical contact with the edge of the heat exchanger (3-1); a fresh air baffle (4-4) is provided between the fresh air fan (4-2) and the heat exchanger (3-1); the three sides of the fresh air baffle (4-4) are tightly connected to the fan partition (4-3), the upper cover (1-1) and the fourth side plate (1-6), and the fourth side is in contact with the edge of the heat exchanger (3-1); an exhaust baffle (4-7) is provided between the exhaust fan (4-5) and the heat exchanger (3-1); the three sides of the exhaust baffle (4-7) are tightly connected to the fan partition (4-3), the lower cover (1-2) and the second side plate (1-4), and the fourth side is in contact with the edge of the heat exchanger (3-1); A main board (1-8) is provided on the outer side surface of the fourth side board (1-6).

2. The small-sized fresh air ventilator according to claim 1, characterized in that: The included angle between the vertical partition plate (2-4) and the first side plate (1-3) is 15° to 45°.

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

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