Downward discharge type large-air-volume air pressure fan system

Abstract

The utility model discloses a down-discharge type fan system with large air volume and air pressure, which comprises a shell, a fan component, an air pipe component and a sealing component, the shell comprises an upper volute and a lower volute, the fan component comprises a motor and a wind wheel, the output end of the motor is vertically upwards arranged, and the wind wheel is arranged at the output end of the motor. The motor with the vertically upward output end is embedded in the wind wheel, the fan assembly is integrated in the cavity in the bottom of the upper volute, the first connecting piece which is integrated with the lower volute and the second connecting piece which is connected with the first connecting piece in a clamped mode are arranged so that the air outlet pipe can be conveniently installed, the integration degree is high, and installation is convenient. In addition, the structural strength of the system can be effectively guaranteed, the sealing ring is arranged along the side length of the opening, the two ends of the middle air inlet net abut against the inner walls of the two corresponding sides of the upper volute respectively, and therefore the overall sealing performance and follow-up smoke exhaust smoothness are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of fan design, and more specifically relates to a downdraft high-volume and high-pressure fan system. Background Technology

[0002] Integrated cooktops typically consist of a cooktop and a range hood. The range hood is usually positioned above the cooktop. Due to its relatively small air intake area, it usually requires a high-powered fan to meet energy efficiency and airflow requirements. Although current built-in integrated cooktop and range hood products on the market can improve smoke extraction efficiency by changing the air intake method, it is difficult to effectively guarantee the structural strength of the system while ensuring the maximum static pressure and maximum airflow of the duct system. Therefore, there is an urgent need for a fan system that can solve the above problems. Utility Model Content

[0003] The main purpose of this utility model is to provide a downdraft high-volume and high-pressure fan system that can ensure smooth smoke exhaust and structural strength of the system.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A downdraft high-volume, high-pressure fan system includes a housing, a fan assembly, a duct assembly disposed at the output end of the fan assembly, and a sealing assembly. The housing includes an upper volute and a lower volute. The fan assembly includes a motor with its output end vertically upward and a fan impeller disposed at the output end of the motor. The motor is embedded in the fan impeller. The top of the upper volute has an opening, and the bottom of the upper volute has a cavity for mounting the fan assembly. The output end of the motor is fixedly connected to the fan impeller, and the other end of the motor is fixedly connected to the lower volute. The duct assembly includes a first connector integral with the lower volute for mounting an outlet duct and a second connector disposed on the bottom surface of the upper volute that can engage with the first connector. The sealing assembly includes a sealing ring disposed along the side length of the opening and an intermediate air inlet mesh disposed within the upper volute. The two ends of the intermediate air inlet mesh abut against the inner walls of the corresponding two sides of the upper volute.

[0006] According to a first aspect of the present invention, the first connector is provided with two grooves spaced apart, and the second connector is provided with two fastening protrusions respectively corresponding to the grooves.

[0007] According to a first aspect of the present invention, the first connector is further provided with at least one limiting member that can be inserted into the upper volute, the limiting member being located between the two grooves.

[0008] According to a first aspect of the present invention, a drainage component is further included, the drainage component including a leak hole disposed on one side inside the upper volute and a water receiving box disposed corresponding to the leak hole.

[0009] According to a first aspect of the present invention, one end of the water receiving box is provided with a hanging hole, one side of the bottom of the upper volute is provided with an installation groove for inserting one end of the water receiving box, and the other side of the bottom of the upper volute is provided with a protrusion that can cooperate with the hanging hole.

[0010] According to a first aspect of the present invention, the water receiving box is provided with an openable and closable first plug at the end away from the mounting groove.

[0011] According to a first aspect of the present invention, the first plug is a component made of rubber.

[0012] According to a first aspect of the present invention, the lower volute is provided with an openable and closable second plug on the side away from the output end of the fan assembly.

[0013] According to a first aspect of the present invention, the bottom surface of the lower volute is provided with a groove for placing motor connecting wires, and a first limiting component and a second limiting component are respectively provided on both sides of the groove.

[0014] According to a first aspect of the present invention, the first limiting component includes at least two first U-shaped members arranged along the length direction of the groove, and the second limiting component includes at least two second U-shaped members respectively located below the first U-shaped members, wherein the second U-shaped members and the corresponding first U-shaped members are staggered.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This invention integrates a motor with its output end vertically upwards into the impeller, and integrates the fan assembly into the cavity at the bottom of the upper volute. It also includes a first connector integrated with the lower volute and a second connector that snaps into the first connector to facilitate the installation of the air outlet duct. This design not only achieves high integration but also effectively ensures the structural strength of the system. Furthermore, by setting a sealing ring along the edge of the opening and a middle air inlet mesh with both ends abutting against the corresponding inner walls on both sides of the upper volute, overall sealing and smooth subsequent smoke exhaust are guaranteed. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Appendix Figure 1 This is an overall structural diagram of one embodiment of the present utility model;

[0019] Appendix Figure 2 This is an exploded view of one embodiment of the present invention;

[0020] Appendix Figure 3 This is a bottom view of one embodiment of the present invention;

[0021] Appendix Figure 4 This is a structural diagram of the upper volute of one embodiment of the present invention;

[0022] Appendix Figure 5 This is a structural diagram of a water receiving box according to an embodiment of the present invention. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0028] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0029] See attached document Figure 1 To be continued Figure 5 As shown, a down-draft high-volume and high-pressure fan system includes a housing 1, a fan assembly 2, a duct assembly disposed at the output end of the fan assembly 2, a sealing assembly, and a drainage assembly 5, wherein the housing 1 includes an upper volute 11 and a lower volute 12.

[0030] In one embodiment of the present invention, the fan assembly 2 includes a motor 21 with its output end vertically upward and a fan wheel 22 with its output end. The motor 21 is embedded in the fan wheel 22. An opening is provided at the top of the upper volute 11 and a cavity for installing the fan assembly 2 is provided at the bottom of the upper volute 11. The output end of the motor 21 is fixedly connected to the fan wheel 22, and the other end of the motor 21 is screwed to the lower volute 12.

[0031] In one embodiment of this utility model, the duct assembly includes a first connector 31 that is an integral component with the lower volute 12 and is available for installing an exhaust duct, and a second connector 32 that can be snapped onto the bottom surface of the upper volute 11 and can be engaged with the first connector 31. When a rectangular duct is subsequently installed, the rectangular duct can be inserted into the first connector 31 and extended outward, which can ensure that the overall appearance of the machine is neat and beautiful, the structural strength is better, and the exhaust of the range hood is smoother.

[0032] In one embodiment of this utility model, the sealing assembly includes a sealing ring 41 arranged along the side length of the opening and an intermediate air inlet mesh 42 arranged inside the upper volute 11. The two ends of the intermediate air inlet mesh 42 respectively abut against the inner walls of the corresponding two sides of the upper volute 11, thereby having the characteristics of good sealing and low exhaust noise during smoke exhaust operation, which effectively improves the performance of the product.

[0033] In one embodiment of this utility model, the first connector 31 is provided with two grooves 311 spaced apart, and the second connector 32 is provided with two fastening protrusions 321 corresponding to the grooves 311 respectively. Thus, when the upper volute 11 and the lower volute 12 are installed and connected, the fastening protrusions 321 can be inserted into the grooves 311 respectively, which is convenient, quick and easy to operate.

[0034] In one embodiment of this utility model, a limiting member 312 is provided on the first connecting member 31, which is perpendicular to the upper volute 11 and is located between two grooves 311. When the fastening protrusion 321 is inserted into the groove 311, after the upper volute 11 and the lower volute 12 are installed and connected, the limiting member 312 can be inserted into the upper volute 11, which can prevent the lower volute 12 from moving relative to the upper volute 11 and affecting the sealing performance of the fan system.

[0035] In one embodiment of this utility model, the drainage component 5 includes a drain hole 51 disposed on one side inside the upper volute 11 and a water receiving box 52 disposed corresponding to the drain hole 51. One end of the water receiving box 52 is provided with a hanging hole 521, and one side of the bottom of the upper volute 11 is provided with an installation groove 111 for inserting one end of the water receiving box 52. The other side of the bottom of the upper volute 11 is provided with a protrusion 112 that can cooperate with the hanging hole 521. Thus, water droplets generated during operation can fall into the water receiving box 52 through the drain hole 51, and the water receiving box 52 can be quickly installed through the installation groove 111 and the protrusion 112 that can cooperate with the hanging hole 521, ensuring that the volume of this fan system is reasonable and the structural design is reasonable.

[0036] In one embodiment of this utility model, a first plug 53 of rubber material is provided at the end of the water receiving box 52 away from the mounting groove 111, and a second plug 6 of rubber material is provided on the side of the lower volute 12 away from the output end of the fan assembly 2. The purpose of quickly discharging wastewater from the water receiving box 52 and the lower volute 12 can be achieved by opening the first plug 53 and the second plug 6 respectively.

[0037] In one embodiment of this utility model, the bottom surface of the lower volute 12 is provided with a wire groove 7 for placing the motor connecting wire. The two sides of the wire groove 7 are respectively provided with a first limiting component and a second limiting component. The first limiting component includes two first U-shaped parts 81 arranged along the length direction of the wire groove 7, and the second limiting component includes two second U-shaped parts 82 located below the first U-shaped parts 81. One side of the motor connecting wire can be snapped into the first U-shaped part 81. The second U-shaped parts 82 and the corresponding first U-shaped parts 81 are staggered, which can ensure that the other side of the motor connecting wire is always located in the wire groove 7 while facilitating the installation of the connecting wire.

[0038] This fan system integrates the fan assembly 2 into the cavity at the bottom of the upper volute 11 by embedding the motor 21, which is vertically upward at the output end, into the impeller 22. It also incorporates a first connector 31 integrated with the lower volute 12 and a second connector 32 that snaps into the first connector 31 for easy installation of the exhaust duct. This design not only achieves high integration but also effectively ensures the structural strength of the system. By setting a sealing ring 41 along the opening edge and a middle air inlet mesh 42 with both ends abutting against the corresponding inner walls of the upper volute 11, the system achieves better overall strength and smoother smoke exhaust, significantly improving product performance while maintaining a static pressure of 520 Pa, an air volume of 673.2 cubic meters per minute, and a noise level of approximately 68 dB.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A downdraft high-volume, high-pressure fan system, characterized in that, include: The housing (1) includes an upper volute (11) and a lower volute (12); The fan assembly (2) includes a motor (21) with its output end vertically upward and a fan wheel (22) with its output end set at the output end of the motor (21). The motor (21) is embedded in the fan wheel (22). The upper volute (11) has an opening at the top and a cavity at the bottom for the fan assembly (2) to be installed. The output end of the motor (21) is fixedly connected to the impeller (22), and the other end of the motor (21) is fixedly connected to the lower volute (12). The air duct assembly is provided at the output end of the fan assembly (2). The air duct assembly includes a first connector (31) that is an integral component with the lower volute (12) and is available for installation of the air outlet duct, and a second connector (32) that can be snapped into the first connector (31) is provided on the bottom surface of the upper volute (11). The sealing assembly includes a sealing ring (41) arranged along the side length of the opening and an intermediate air inlet mesh (42) arranged inside the upper volute (11), the two ends of which abut against the inner walls of the corresponding sides of the upper volute (11).

2. The downdraft high-volume, high-pressure fan system according to claim 1, characterized in that: The first connector (31) has two grooves (311) spaced apart, and the second connector (32) has two fastening protrusions (321) respectively corresponding to the grooves (311).

3. The downdraft high-volume, high-pressure fan system according to claim 2, characterized in that: The first connector (31) is also provided with at least one limiting member (312) that can be inserted into the upper volute (11), and the limiting member (312) is located between the two grooves (311).

4. The downdraft high-volume, high-pressure fan system according to claim 1, characterized in that: It also includes a drainage assembly (5), which includes a drain hole (51) disposed on one side inside the upper volute (11) and a water receiving box (52) disposed corresponding to the drain hole (51).

5. The downdraft high-volume, high-pressure fan system according to claim 4, characterized in that: The water receiving box (52) has a hanging hole (521) at one end, and the bottom side of the upper volute (11) has an installation groove (111) for inserting one end of the water receiving box (52), and the other side of the bottom of the upper volute (11) has a protrusion (112) that can cooperate with the hanging hole (521).

6. The downdraft high-volume, high-pressure fan system according to claim 5, characterized in that: The water receiving box (52) is provided with an openable and closable first plug (53) at the end away from the mounting groove (111).

7. The downdraft high-volume, high-pressure fan system according to claim 6, characterized in that: The first plug (53) is a rubber component.

8. The downdraft high-volume, high-pressure fan system according to claim 1, characterized in that: The lower volute (12) is provided with a second plug (6) that can be opened and closed on the side away from the output end of the fan assembly (2).

9. The downdraft high-volume, high-pressure fan system according to claim 1, characterized in that: The bottom surface of the lower volute (12) is provided with a wire groove (7) for placing the motor connection wire, and a first limiting component and a second limiting component are respectively provided on both sides of the wire groove (7).

10. The downdraft high-volume, high-pressure fan system according to claim 9, characterized in that: The first limiting component includes at least two first U-shaped parts (81) arranged along the length direction of the groove (7), and the second limiting component includes at least two second U-shaped parts (82) respectively located below the first U-shaped parts (81), and the second U-shaped parts (82) and the corresponding first U-shaped parts (81) are staggered.

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