Building ventilation device

Abstract

The utility model discloses a building ventilation device, which belongs to the technical field of air exhaust devices, and comprises a shell, a panel is fixedly connected outside the shell, a wind shield is fixedly connected outside the panel, two side air outlets are arranged outside the wind shield, a splitter plate is fixedly connected inside the wind shield, and the side air outlets are communicated with the splitter plate. An air outlet through hole is formed in the outer portion of the panel, a communicating pipe is fixedly connected to the outer portion of the panel, and the communicating pipe is communicated with the air outlet through hole. Airflow is cut into two strands in two directions through the splitter plate, the two strands are discharged from side air outlets in the two sides of the wind shield respectively, and backflow caused by wind disturbance can be prevented; according to the ventilation device, hot air flow does not pass through the exhaust pipe and the wind shield again, the heat emission efficiency can be improved, the silencing plate is arranged between the shell and the exhaust fan, noise generated by the exhaust fan can be partially absorbed, the shell can achieve the solid sound insulation effect, and noise reduction of the ventilation device is effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust devices, in particular to a building ventilation device. Background Art

[0002] Ventilation, also known as air change, is to send sufficient fresh air into the indoor space by mechanical or natural methods, and at the same time discharge the dirty air that does not meet the sanitary requirements in the room, so that the indoor air meets the sanitary requirements and the needs of the production process. All the facilities that complete the ventilation work in the building are collectively called ventilation equipment. A ventilation device refers to a device used to keep the indoor air circulating and fresh. At present, a exhaust fan is often used to rotate at a high speed to promote air circulation to achieve the ventilation effect.

[0003] In order to prevent the exhaust pipe air outlet of the existing ventilation device from being affected by wind and rain, the air outlet is usually set to open downward. However, since hot air needs to rise, the hot air flow discharged in this way passes through the exhaust pipe and the windshield when rising, and the exhaust pipe and the windshield are affected by the hot air flow again, resulting in low heat dissipation efficiency. In addition, the existing ventilation device has a large noise. Therefore, a building ventilation device is proposed. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, an object of the utility model is to provide a building ventilation device, which can improve the heat emission efficiency, and the housing can play a role in solid sound insulation, effectively reducing the noise of the ventilation device.

[0006] To achieve the above object, the utility model provides the following technical solution: A building ventilation device, including a housing, a panel is fixedly connected to the outside of the housing, a windshield is fixedly connected to the outside of the panel, two side air outlets are opened on the outside of the windshield, a flow dividing plate is fixedly connected to the inside of the windshield, an air outlet through hole is opened on the outside of the panel, a connecting pipe is fixedly connected to the outside of the panel, the connecting pipe is communicated with the air outlet through hole, an exhaust fan is arranged inside the housing, the housing and the exhaust fan are fixedly connected by an installation connecting block, a plurality of sound absorption plates are adhered to the outside of the exhaust fan, an air outlet pipe is communicated with the air outlet of the exhaust fan, and one end of the air outlet pipe is communicated with one end of the connecting pipe.

[0007] Preferably, a filter screen plate is fixedly connected to the inside of the windshield, and the filter screen plate is located outside the air outlet through hole.

[0008] Preferably, an air inlet pipe is communicated with the air inlet of the exhaust fan.

[0009] Preferably, the sound absorption plate is a polyester fiber sound absorption plate.

[0010] Preferably, the angle of the flow dividing plate facing the air outlet through hole is an obtuse angle.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By arranging a flow dividing plate, the air flow of the present utility model is cut into two streams in two directions and discharged from the side air outlets on both sides of the wind shield respectively, which can prevent backflow caused by wind disturbance. The hot air flow does not pass through the exhaust pipe and the wind shield again, and the heat emission efficiency can be improved. The sound absorption plate is arranged between the housing and the exhaust fan, which can partially absorb the noise generated by the exhaust fan, and the housing can play a role in solid sound insulation, effectively reducing the noise of the ventilation device. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the building ventilation device of the present utility model;

[0014] Figure 2 is a schematic cross-sectional structure diagram of the wind shield in the building ventilation device of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the air outlet pipe in the building ventilation device of the present utility model;

[0016] Figure 4 is a schematic structural diagram of the air inlet pipe in the building ventilation device of the present utility model;

[0017] Figure 5 is a schematic cross-sectional structure diagram of the housing in the building ventilation device of the present utility model.

[0018] In the figure: 1, housing; 2, panel; 3, filter screen plate; 4, wind shield; 5, connecting pipe; 6, air outlet through hole; 7, flow dividing plate; 8, exhaust fan; 9, air outlet pipe; 10, air inlet pipe; 11, sound absorption plate; 12, installation connection block; 13, side air outlet. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 5, an embodiment of the present utility model provides a building ventilation device, including: a housing 1, a panel 2 is fixedly connected to the outside of the housing 1, a windshield 4 is fixedly connected to the outside of the panel 2, two side air outlets 13 are provided on the outside of the windshield 4, a flow dividing plate 7 is fixedly connected to the inside of the windshield 4, an air outlet through hole 6 is provided on the outside of the panel 2, a connecting pipe 5 is fixedly connected to the outside of the panel 2, and the connecting pipe 5 is communicated with the air outlet through hole 6. A exhaust fan 8 is arranged inside the housing 1, and the housing 1 and the exhaust fan 8 are fixedly connected through an installation connecting block 12. A plurality of sound-absorbing plates 11 are adhered to the outside of the exhaust fan 8. The air outlet of the exhaust fan 8 is communicated with an air outlet pipe 9. One end of the air outlet pipe 9 is communicated with one end of the connecting pipe 5. The air inlet of the exhaust fan 8 is communicated with an air inlet pipe 10. The angle of the flow dividing plate 7 facing the air outlet through hole 6 is an obtuse angle.

[0021] During use, the housing 1 is installed on the ventilation opening of the building. The wind force of the air inlet pipe 10 enters the exhaust fan 8, then enters the connecting pipe 5 through the air outlet pipe 9, and finally flows into the windshield 4 from the air outlet through hole 6 on the panel 2. Then, the airflow is cut into two strands in two directions by the flow dividing plate 7 and discharged from the side air outlets 13 on both sides of the windshield 4 respectively, which can prevent backflow caused by wind disturbance and improve the heat emission efficiency.

[0022] The sound-absorbing plate 11 is arranged between the housing 1 and the exhaust fan 8, which can partially absorb the noise generated by the exhaust fan 8, and the housing 1 can play the role of solid sound insulation to further reduce the noise. The sound-absorbing plate 11 is a polyester fiber sound-absorbing plate.

[0023] Among them, in order to prevent foreign objects from entering the connecting pipe 5, a filter screen plate 3 is fixedly connected to the inside of the windshield 4, and the filter screen plate 3 is located outside the air outlet through hole 6.

[0024] Summarize and sort out the working steps of this solution according to the above technical solution: When the present utility model is in use, the housing 1 is installed on the ventilation opening of the building. The wind force of the air inlet pipe 10 enters the exhaust fan 8, then enters the connecting pipe 5 through the air outlet pipe 9, and finally flows into the windshield 4 from the air outlet through hole 6 on the panel 2. Then, the airflow is cut into two strands in two directions by the flow dividing plate 7 and discharged from the side air outlets 13 on both sides of the windshield 4 respectively, which can prevent backflow caused by wind disturbance and improve the heat emission efficiency. The sound-absorbing plate 11 is arranged between the housing 1 and the exhaust fan 8, which can partially absorb the noise generated by the exhaust fan 8, and the housing 1 can play the role of solid sound insulation.

[0025] Parts not involved in the present utility model are the same as or can be implemented by using the prior art. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A building ventilation device, comprising a housing (1), characterized in that: The shell (1) is fixedly connected to a panel (2) on the outside, the panel (2) is fixedly connected to a wind shield (4) on the outside, two side air outlets (13) are provided on the outside of the wind shield (4), the wind shield (4) is fixedly connected to a diverter plate (7) on the inside, the panel (2) is fixedly connected to an air outlet hole (6) on the outside, the panel (2) is fixedly connected to a connecting pipe (5) on the outside, the connecting pipe (5) is connected to the air outlet hole (6), an exhaust fan (8) is arranged inside the shell (1), the shell (1) and the exhaust fan (8) are fixedly connected by installing a connecting block (12), a plurality of silencer plates (11) are bonded to the outside of the exhaust fan (8), the air outlet of the exhaust fan (8) is connected to an air outlet pipe (9), one end of the air outlet pipe (9) is connected to one end of the connecting pipe (5).

2. A building ventilation device according to claim 1, characterized in that: A filter plate (3) is fixedly connected to the interior of the wind shield (4), and the filter plate (3) is located outside the air outlet hole (6).

3. A building ventilation device according to claim 1, characterized in that: The air inlet of the exhaust fan (8) is connected to an air inlet pipe (10).

4. A building ventilation device according to claim 1, characterized in that: The sound-absorbing board (11) is a polyester fiber sound-absorbing board.

5. A building ventilation device according to claim 1, characterized in that: The angle of the diverter plate (7) toward the air outlet hole (6) is an obtuse angle.

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