A volute connecting piece of a floor convector cross-flow fan air duct

Abstract

The utility model discloses a volute connecting piece of floor counter current ware through flow fan air duct, including volute connecting piece main part, the left side of volute connecting piece main part is provided with the inside turnover edge, and the periphery between inside turn over edge left side is pasted with second rubber sealing pad. The utility model discloses the setting of inside turn over edge and outside turn over edge can effectively improve the strength between volute connecting piece main part periphery frame, and under the cooperation between first rubber sealing pad and second rubber sealing pad, effectively improved volute connecting piece main part when installing same contact's sealing effect between through flow fan volute and heat exchanger support, avoid the air leakage because of the existence gap of volute connecting piece main part's both sides in the installation process, ensure the normal delivery of air volume, and due to the air inlet and air outlet on volute connecting piece main part, adopt the design of one big and one small respectively, make the reflux area reduce, and effectively increase the through flow area.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, specifically to a volute connector for the duct of a floor convection cross-flow fan. Background Technology

[0002] Cross-flow fans, with their advantages of small size, simple structure and installation, low noise and high-speed and stable airflow, have become an important part of equipment such as multi-split central air conditioning units, indoor units of household air conditioners and floor convection units at indoor terminals. Their unique flow pattern gives their internal air duct flow field a flow phenomenon that other types of fans do not have.

[0003] Cross-flow fans consist of multi-bladed impellers, volutes, and volute casings. The rational design of the blade shape, volute shape, and casing dimensions are crucial parameters for ensuring the performance and noise levels of cross-flow fans. Changes in these parameters directly impact the overall performance of the indoor terminal unit. Based on on-site construction experience, the connection points of the cross-flow fan volute casing are often overlooked by designers and installers, leading to problems such as poor duct sealing and air leakage. Simultaneously, the lack of optimized design at the volute outlet results in a large recirculation zone and low effective heat exchange airflow, significantly reducing the overall heat exchange performance of the floor convection unit. Utility Model Content

[0004] The purpose of this utility model is to provide a volute connector for the duct of a floor convection fan, which effectively improves the sealing performance of the duct, reduces backflow, and increases the heat exchange air volume.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a volute connector for a floor convection fan duct, comprising a volute connector body, an inwardly folded edge on the left side of the volute connector body, a second rubber sealing gasket pasted between the four sides of the left side of the inwardly folded edge, an air inlet at the left end of the volute connector body, an outwardly folded edge on the right side of the volute connector body, a first rubber sealing gasket pasted between the four sides of the right side of the outwardly folded edge, an air outlet at the right end of the volute connector body, a fan volute on the left side of the volute connector body, and a heat exchanger support on the right side of the volute connector body.

[0006] As a preferred embodiment, the right side of the cross-flow fan casing is provided with first mounting holes at both ends, and the inward folded edge is provided with second mounting holes at both ends.

[0007] As a preferred embodiment, the heat exchanger support has a fourth mounting hole at both ends on the left side, and the outwardly folded edge has a third mounting hole at both ends.

[0008] As a preferred embodiment, the air inlet and air outlet are arranged in parallel, and the area of ​​the air inlet is larger than the area of ​​the air outlet.

[0009] As a preferred embodiment, both sides of the volute connector body are horseshoe-shaped.

[0010] As a preferred embodiment, the cross-flow fan body is fixedly installed at the middle end of the cross-flow fan casing.

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

[0012] This invention, through the design of inward and outward folded edges, effectively improves the strength between the surrounding frames of the volute connector body. Simultaneously, the cooperation between the first and second rubber sealing gaskets enhances the sealing effect between the volute connector body and the cross-flow fan volute and heat exchanger support during installation, preventing air leakage due to gaps on both sides of the volute connector body during installation and ensuring normal airflow delivery. Furthermore, the design of a large and a small air inlet and outlet on the volute connector body reduces the recirculation area and effectively increases the cross-flow area. The horizontal extension of the outlet also minimizes the recirculation area of ​​the airflow entering the heat exchanger support, maximizing the delivered airflow. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a perspective view of the present invention from another angle;

[0015] Figure 3 This is a schematic diagram of the assembled structure of this utility model.

[0016] In the diagram: 1. Main body of the volute connector; 2. Volute of the cross-flow fan; 3. First mounting hole; 4. Outward folded edge; 5. First rubber sealing gasket; 6. Heat exchanger support; 7. Air outlet; 8. Third mounting hole; 9. Fourth mounting hole; 10. Air inlet; 11. Inward folded edge; 12. Second rubber sealing gasket; 13. Second mounting hole. Detailed Implementation

[0017] 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.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Example 1:

[0020] Please see Figures 1-3 As shown, this utility model provides a volute connector for a floor convection fan duct, including a volute connector body 1. An inwardly folded edge 11 is provided on the left side of the volute connector body 1, and a second rubber sealing gasket 12 is pasted between the four sides of the left side of the inwardly folded edge 11. An air inlet 10 is provided at the left end of the volute connector body 1. An outwardly folded edge 4 is provided on the right side of the volute connector body 1, and a first rubber sealing gasket 5 is pasted between the four sides of the right side of the outwardly folded edge 4. An air outlet 7 is provided at the right end of the volute connector body 1. A cross-flow fan volute 2 is provided on the left side of the volute connector body 1, and a heat exchanger support 6 is provided on the right side of the volute connector body 1.

[0021] In this technical solution, the inward folding edge 11 and the outward folding edge 4 effectively improve the strength between the four frames of the volute connector body 1. At the same time, with the cooperation between the first rubber sealing gasket 5 and the second rubber sealing gasket 12, the sealing effect between the volute connector body 1 and the cross-flow fan volute 2 and the heat exchanger support 6 during installation is effectively improved, avoiding air leakage due to gaps on both sides of the volute connector body 1 during installation, and ensuring normal air delivery. In addition, since the air inlet 10 and the air outlet 7 on the volute connector body 1 are designed to be large and small respectively, the recirculation area is reduced and the cross-flow area is effectively increased. At the same time, the horizontal extension of the air outlet 7 also minimizes the recirculation area of ​​the airflow entering the heat exchanger support 6, so that the delivered air volume can be maximized.

[0022] Example 2:

[0023] Based on Embodiment 1, this utility model is as follows: Figures 1-3 As shown, the cross-flow fan volute 2 has first mounting holes 3 at both ends on the right side, second mounting holes 13 at both ends on the inward folded edge 11, fourth mounting holes 9 at both ends on the left side of the heat exchanger support 6, and third mounting holes 8 at both ends on the outward folded edge 4. The air inlet 10 and the air outlet 7 are arranged in parallel, and the area of ​​the air inlet 10 is larger than the area of ​​the air outlet 7. Both sides of the volute connecting body 1 are horseshoe-shaped, and the cross-flow fan body is fixedly installed at the middle of the cross-flow fan volute 2.

[0024] In this technical solution, the first mounting hole 3 and the second mounting hole 13 facilitate the quick connection and fixation of the inward folded edge 11 and the cross-flow fan volute 2 with rivets during the later assembly and installation process. The third mounting hole 8 and the fourth mounting hole 9 facilitate the quick connection and fixation of the outward folded edge 4 and the heat exchanger support 6 with rivets during the later assembly and installation process.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A volute connector for a floor convection fan duct, comprising a volute connector body (1), characterized in that: The left side of the volute connector body (1) is provided with an inward folded edge (11), and a second rubber sealing gasket (12) is pasted between the four sides of the left side of the inward folded edge (11). The left end of the volute connector body (1) is provided with an air inlet (10). The right side of the volute connector body (1) is provided with an outward folded edge (4), and a first rubber sealing gasket (5) is pasted between the four sides of the right side of the outward folded edge (4). The right end of the volute connector body (1) is provided with an air outlet (7). The left side of the volute connector body (1) is provided with a cross-flow fan volute (2), and the right side of the volute connector body (1) is provided with a heat exchanger support (6).

2. The volute connecting component of the floor convection fan duct according to claim 1, characterized in that: The right side of the cross-flow fan volute (2) is provided with first mounting holes (3) at both ends, and the inward folded edge (11) is provided with second mounting holes (13) at both ends.

3. The volute connector for a floor convection fan duct according to claim 1, characterized in that: The heat exchanger support (6) has a fourth mounting hole (9) at both ends on the left side, and the outward folded edge (4) has a third mounting hole (8) at both ends.

4. The volute connector for a floor convection fan duct according to claim 1, characterized in that: The air inlet (10) and the air outlet (7) are arranged in parallel, and the area of ​​the air inlet (10) is larger than the area of ​​the air outlet (7).

5. The volute connector for a floor convection fan duct according to claim 1, characterized in that: Both sides of the main body (1) of the volute connector are horseshoe-shaped.

6. The volute connector for a floor convection fan duct according to claim 1, characterized in that: The cross-flow fan body is fixedly installed at the middle end of the cross-flow fan volute (2).

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