Fan structure

Abstract

The utility model discloses a fan structure, which comprises a fixed plate, a plurality of fan blades, a plurality of fan blades, a plurality of fan blades, a plurality of fan blades and a plurality of fan blades, a wind wheel is arranged in the air duct volute, an air outlet is formed in the front portion of the air duct volute, a nest tongue extending forwards is arranged on the lower portion of the air outlet, a plurality of inserting buckles matched with the fixing plate are arranged on the periphery of the air outlet, limiting ribs are arranged on the lower end face of the nest tongue, and when the air duct volute is installed on the fixing plate, the nest tongue penetrates through a through opening of the fixing plate. The limiting rib of the nest tongue is clamped on the lower side edge of the through opening, the inserting buckle of the air channel volute is matched with the clamping groove of the fixing plate in an inserting mode, and the air channel volute is fixedly connected with the fixing plate through a fastener. According to the scheme, the inserting buckles and the limiting ribs are arranged on the air flue volute, and the clamping grooves corresponding to the inserting buckles are formed in the fixing plate, so that the installation position of the air flue volute on the fixing plate is limited, the fixing reliability of the air flue volute is high, the structure is simple, and the strength of the volute can be improved through the limiting ribs.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a fan structure. Background Art

[0002] In the existing fan structures in the market, the air duct volute in the fan assembly is usually supported by plastic or sheet metal. The air duct volute is usually fixed on the volute fixing plate through fasteners, so as to complete the fixation of the fan assembly. The patent application with the publication number CN209263287U discloses a volute fixing structure and an air conditioner, in which the first volute passes through the through hole on the volute fixing plate and is connected with the volute fixing plate. However, there are always potential safety hazards in the fixing method of this kind of fan assembly. In the case of long-distance transportation or the unit falling due to improper operation of construction workers, if the fan assembly is not effectively fixed or the fixing method is unreliable, the fan assembly may fall off, resulting in a completely ineffective state and unable to work properly. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a fan structure with simple process, convenient assembly and high reliability.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A fan structure, comprising:

[0006] A fixing plate, through holes are opened on the fixing plate, and a plurality of card slots are opened on the periphery of the through holes;

[0007] An air duct volute, a wind wheel is arranged in the air duct volute, an air outlet is arranged at the front of the air duct volute, a volute tongue extends forward below the air outlet, a plurality of buckles adapted to the fixing plate are arranged on the periphery of the air outlet, a limiting rib is arranged on the lower end surface of the volute tongue. When the air duct volute is installed on the fixing plate, the volute tongue passes through the through hole of the fixing plate, the limiting rib of the volute tongue is clamped on the lower side edge of the through hole, the buckles of the air duct volute are inserted and matched with the card slots of the fixing plate, and the air duct volute and the fixing plate are fixedly connected through fasteners. By arranging buckles and limiting ribs on the air duct volute and corresponding card slots on the fixing plate, the installation position of the air duct volute on the fixing plate is limited, so that the fixing reliability of the air duct volute is high, the structure is simple, and the limiting rib can also improve the strength of the volute.

[0008] Preferably, the number of the air duct volutes is multiple, two through holes are arranged on the fixing plate, and the two air duct volutes are arranged on the fixing plate at intervals, and the air outlets of the air duct volutes correspond to the through holes of the fixing plate one by one.

[0009] Preferably, it further includes a motor bracket and a motor. The motor bracket is fixedly installed on the fixed plate and located between the two air duct volutes. The motor is installed on the motor bracket, and the motor is used to drive the impeller in the air duct volute to rotate.

[0010] Preferably, the air duct volute includes an upper volute and a lower volute. The upper volute covers the upper part of the lower volute. The upper volute and the lower volute are spliced to form an installation space for installing the impeller. The air outlet is opened at the front of the upper volute, and the volute tongue is arranged at the front of the lower volute.

[0011] Preferably, several buckles are provided at the connection between the upper end of the lower volute and the upper volute. Several limiting grooves adapted to the buckles are provided at the connection between the lower end of the upper volute and the lower volute. The upper volute is snap-fitted and covered above the lower volute through the buckles and the limiting grooves.

[0012] Preferably, a hook portion is provided at the end of the buckle. When the buckle is arranged in the limiting groove, the hook portion of the buckle abuts against the upper end surface of the limiting groove.

[0013] Preferably, a mounting plate is provided around the air outlet. The insertion buckle is formed by bending a part of the mounting plate backward. When the air duct volute is installed on the fixed plate, the insertion buckle passes through the card slot of the fixed plate and is inserted and matched with the card slot. A part of the mounting plate abuts against the fixed plate, and the mounting plate and the fixed plate are fixedly connected through fasteners.

[0014] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects: By providing an insertion buckle and a limiting rib on the air duct volute and providing a card slot corresponding to the insertion buckle on the fixed plate, when installing the air duct volute, the installation position of the air duct volute on the fixed plate is limited, so that the fixing reliability of the air duct volute is high, the structure is simple, and without changing the shape of the fan assembly and having no influence on the air volume and performance, the situation that the fan assembly falls off caused by long-distance transportation or improper operation of construction personnel resulting in the unit falling is avoided. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the air duct volute;

[0016] Figure 2 is a schematic structural diagram of the upper volute;

[0017] Figure 3 is a schematic structural diagram of the lower volute;

[0018] Figure 4 is a schematic structural diagram of the present utility model;

[0019] Figure 5 is Figure 4 a schematic structural diagram from another angle.

[0020] Reference numerals:

[0021] 1. Fixed plate; 11. Through port; 12. Card slot;

[0022] 2. Upper volute; 21. Air outlet; 22. Insert buckle; 23. Limit groove; 24. Mounting plate;

[0023] 3. Lower volute; 31. Buckle;

[0024] 4. Impeller;

[0025] 5. Tongue; 51. Limit rib;

[0026] 7. Motor bracket; Detailed implementation manners

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where 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 by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise clearly defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, the terms "mounting", "connecting", "coupling", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0032] As Figures 1 to 5 shown, a fan structure includes:

[0033] A fixing plate 1, in which a through hole 11 is formed, and a plurality of clamping grooves 12 are formed around the through hole 11;

[0034] An air duct volute, in which a wind wheel 4 is provided. At the front part of the air duct volute, an air outlet 21 is provided. At the lower part of the air outlet 21, a volute tongue 5 extends forward. A plurality of fastening buttons 22 adapted to the fixing plate 1 are provided around the air outlet 21. A limiting rib 51 is provided on the lower end surface of the volute tongue 5. When the air duct volute is installed on the fixing plate 1, the volute tongue 5 passes through the through hole 11 of the fixing plate 1, the limiting rib 51 of the volute tongue 5 is clamped on the lower side edge of the through hole 11, the fastening buttons 22 of the air duct volute are in plug-in fit with the clamping grooves 12 of the fixing plate 1, and the air duct volute and the fixing plate 1 are fixedly connected by fasteners.

[0035] In the present utility model, by providing the fastening buttons 22 and the limiting rib 51 on the air duct volute and providing the clamping grooves 12 corresponding to the fastening buttons 22 on the fixing plate 1, when installing the air duct volute, the installation position of the air duct volute on the fixing plate 1 is limited, so that the fixing reliability of the air duct volute is high, the structure is simple, and without changing the shape of the fan assembly and having no influence on the air volume and performance, the situation that the fan assembly falls off due to long-distance transportation or improper operation of construction personnel resulting in the unit falling is avoided.

[0036] Generally, the number of the air duct volutes is multiple. Two through holes 11 are provided on the fixing plate 1. Two air duct volutes are arranged at intervals on the fixing plate 1, and the air outlets 21 of the air duct volutes correspond to the through holes 11 of the fixing plate 1 one by one.

[0037] As Figure 5 shown, it further includes a motor bracket 7 and a motor. The motor bracket 7 is fixedly installed on the fixing plate 1 and is located between two air duct volutes. The motor is installed on the motor bracket 7, and the motor is used to drive the wind wheel 4 in the air duct volute to rotate.

[0038] In the present utility model, the air duct volute is made of plastic, such as Figures 1 to 3 shown, the air duct volute includes an upper volute 2 and a lower volute 3. The upper volute 2 covers above the lower volute 3. The upper volute 2 and the lower volute 3 are spliced to form an installation space for installing a wind wheel 4. The air outlet 21 is opened at the front of the upper volute 2, and the volute tongue 5 is arranged at the front of the lower volute 3. The volute tongue 5 and the lower volute 3 are integrally formed.

[0039] Such as Figure 2 and Figure 3 shown, at the connection between the upper end of the lower volute 3 and the upper volute 2, there are several buckles 31. At the connection between the lower end of the upper volute 2 and the lower volute 3, there are several limiting grooves 23 adapted to the buckles 31. The upper volute 2 is snap-fitted and covered above the lower volute 3 through the buckles 31 and the limiting grooves 23.

[0040] In order to make the snap connection more stable, the end of the buckle 31 is provided with a hook portion. When the buckle 31 is arranged in the limiting groove 23, the hook portion of the buckle 31 abuts against the upper end face of the limiting groove 23.

[0041] Such as Figure 2 shown, an installation plate 24 is provided around the air outlet 21. The insertion buckle 22 is formed by bending a part of the installation plate 24 backward. When the air duct volute is installed on the fixing plate 1, the insertion buckle 22 passes through the slot 12 of the fixing plate 1 and is in plug-in fit with the slot 12. A part of the installation plate 24 abuts against the fixing plate 1, and the installation plate 24 and the fixing plate 1 are fixedly connected through fasteners.

[0042] All features described in the specification, the appended claims and the drawings, whether alone or in any combination thereof, are important features of the present utility model.

[0043] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, variations, delete some features, add features or re-combine features within the scope of the present utility model without departing from the principles and purposes of the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the innovative principles of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims

1. A fan structure, characterized in that: include: A fixing plate (1), wherein a through opening (11) is formed on the fixing plate (1), and a plurality of slots (12) are formed around the through opening (11); An air duct volute is provided, wherein a wind wheel (4) is provided in the air duct volute, an air outlet (21) is provided at the front of the air duct volute, a tongue (5) extending forward is provided at the lower part of the air outlet (21), a plurality of buckles (22) matching with a fixing plate (1) are provided around the air outlet (21), a limiting rib (51) is provided on the lower end surface of the tongue (5), when the air duct volute is mounted on the fixing plate (1), the tongue (5) passes through a through opening (11) of the fixing plate (1), the limiting rib (51) of the tongue (5) is clamped on the lower side of the through opening (11), the buckle (22) of the air duct volute is plugged into and matched with a clamping groove (12) of the fixing plate (1), and the air duct volute is fixedly connected to the fixing plate (1) by a fastener.

2. A fan structure according to claim 1, characterized in that: The number of the air duct volutes is multiple, two openings (11) are provided on the fixed plate (1), the two air duct volutes are arranged on the fixed plate (1) at intervals, and the exhaust ports (21) of the air duct volutes correspond one-to-one to the openings (11) of the fixed plate (1).

3. A fan structure according to claim 2, characterized in that: It also includes a motor bracket (7) and a motor, wherein the motor bracket (7) is fixedly mounted on the fixing plate (1) and located between the two air duct volutes, and the motor is mounted on the motor bracket (7), and the motor is used to drive the wind wheel (4) in the air duct volute to rotate.

4. A fan structure according to claim 1, characterized in that: The air duct volute comprises an upper volute (2) and a lower volute (3), wherein the upper volute (2) covers the upper part of the lower volute (3), and the upper volute (2) and the lower volute (3) are spliced ​​to form an installation space for installing a wind wheel (4), wherein the air outlet (21) is provided at the front part of the upper volute (2), and the tongue (5) is provided at the front part of the lower volute (3).

5. A fan structure according to claim 4, characterized in that: The upper end of the lower volute (3) is provided with a plurality of buckles (31) at the connection with the upper volute (2), and the lower end of the upper volute (2) is provided with a plurality of limit grooves (23) matched with the buckles (31) at the connection with the lower volute (3). The upper volute (2) is clamped and covered on the upper part of the lower volute (3) by the buckles (31) and the limit grooves (23).

6. A fan structure according to claim 5, characterized in that: A hook portion is provided at the end of the buckle (31), and when the buckle (31) is arranged in the limiting groove (23), the hook portion of the buckle (31) abuts against the upper end surface of the limiting groove (23).

7. A fan structure according to claim 1, characterized in that: A mounting plate (24) is provided around the air outlet (21), and the buckle (22) is formed by bending a portion of the mounting plate (24) backwards. When the air duct volute is mounted on the fixing plate (1), the buckle (22) passes through the slot (12) of the fixing plate (1) and is plugged into and matched with the slot (12), and a portion of the mounting plate (24) abuts against the fixing plate (1). The mounting plate (24) and the fixing plate (1) are fixedly connected by fasteners.

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