Air supply shell and electrical equipment

Abstract

The utility model relates to an air supply shell and electrical equipment, and the air supply shell comprises an air outlet shell, and air inlets are formed in the two opposite ends of the air outlet shell in the first direction correspondingly; the two supports are installed at the two air inlets correspondingly and connected with the air outlet shell in a matched mode. The two air inlet grilles are connected to the two supports in a matched mode respectively, and each air inlet grille correspondingly covers one air inlet. The air supply shell, the support and the air outlet shell are connected in a buckled mode, and the air inlet grille and the support are connected in a rotating and clamping mode, so that the air outlet shell, the support and the air outlet shell jointly form a whole and are connected with the main machine body through the support, the assembly mode is simple, and the overall structure of the electrical equipment is more stable.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to an air supply housing and electrical equipment. Background Technology

[0002] With the development of technology and the improvement of living standards, people's requirements for the comfort of their living environment are also gradually increasing. Electric appliances such as fans, widely used in people's production and daily life, have effectively improved people's living and working environments.

[0003] A fan typically consists of a main body and an air supply casing located at one end of the main body. However, the existing air supply casing has a relatively complex structure and is difficult to assemble, which increases the production cost of the air supply device and reduces its production efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide an air supply housing and electrical equipment to address the problem of the high difficulty in assembling the air supply housing.

[0005] An air supply housing, comprising:

[0006] An air outlet housing, wherein an air inlet is formed at each of the opposite ends in a first direction;

[0007] Two brackets are respectively installed at the two air inlets and connected to the air outlet housing; and

[0008] Two air intake grilles are respectively connected to the two brackets, and each air intake grille covers one of the air intakes.

[0009] In one embodiment, the air outlet housing is provided with a housing buckle, and the bracket is provided with a bracket buckle, and the housing buckle and the bracket buckle are engaged with each other in the first direction.

[0010] In one embodiment, the bracket has a bracket slot, and the upper limit of the outer shell buckle in the direction surrounding the first direction is located in the bracket slot.

[0011] In one embodiment, the air outlet housing is provided with a housing fixing part, the bracket is provided with a bracket fixing part, and the housing fixing part is threadedly connected to the bracket fixing part.

[0012] In one embodiment, the air outlet housing is provided with a reinforcing portion, which is disposed around the outer side of the housing fixing portion, and the bracket is provided with a limiting groove located on one side of the bracket fixing member in the first direction, and the reinforcing portion is at least partially limited in the limiting groove.

[0013] In one embodiment, the bracket is provided with a guide groove, which is located on the side of the limiting groove away from the bracket fixing member and communicates with the limiting groove, and the length of the guide groove in the circumferential direction of the bracket gradually decreases from the end away from the limiting groove to the end communicating with the limiting groove.

[0014] In one embodiment, one of the air outlet housing and the bracket is provided with a positioning post, and the other of the air outlet housing and the bracket is provided with a positioning hole, and the positioning post is inserted into the positioning hole along the first direction.

[0015] In one embodiment, the bracket has a mounting groove, and the air inlet grille has a bent and extended grille buckle, which is rotatably limited to the bracket through the mounting groove.

[0016] An electrical device comprising the aforementioned air supply housing.

[0017] In one embodiment, the electrical device is a circulating fan.

[0018] The aforementioned air supply housing, bracket and air outlet housing are snap-fitted together, and the air inlet grille is rotatably snapped into the bracket, so that the air outlet housing, bracket and air outlet housing together form a whole, and are connected to the main body through the bracket. The assembly method is simple and makes the overall structure of the electrical equipment more stable. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an air supply device according to an embodiment of this application.

[0022] Figure 2 for Figure 1 The diagram shows the internal structure of the air supply device.

[0023] Figure 3 This is a schematic diagram of the structure of an air supply housing according to an embodiment of this application.

[0024] Figure 4 for Figure 3The diagram shows the structure of the air outlet shell of the air supply housing.

[0025] Figure 5 for Figure 4 The diagram shows the structure of the air outlet grille on the air outlet casing.

[0026] Figure 6 for Figure 4 The diagram shows a structural schematic of the air outlet casing from another angle.

[0027] Figure 7 for Figure 3 The diagram shows the structural design of the support frame for the air supply housing.

[0028] Figure 8 for Figure 2 A magnified view of part A of the air supply device shown.

[0029] Figure 9 for Figure 3 A magnified view of part B of the air supply casing shown.

[0030] Figure 10 for Figure 3 A magnified view of part C of the air supply casing shown.

[0031] Figure 11 for Figure 3 The front view of the air inlet grille of the air supply housing shown.

[0032] Figure 12 for Figure 11 The side view of the air intake grille shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Air supply device; 20. Air supply housing; 20a. Air inlet; 21. Air outlet housing; 211. Housing body; 212. Air outlet grille; 2121. Air outlet blades; 213. Housing clip; 214. Housing fixing part; 215. Reinforcing part; 216. Positioning column; 23. Bracket; 231. Bracket clip; 232. Bracket slot; 233. Bracket fixing part; 234. Limiting groove; 235. Guide groove; 236. Positioning hole; 237. Mounting groove; 238. Support part; 2392. Center mounting part; 2392a. Air duct limiting hole; 2394. Mounting rib; 2396. Bracket body; 25. Air inlet grille; 252. Grille buckle; 254. Grille fixing part; 40. Air duct assembly; 60. Functional module. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] Please see Figure 1 and Figure 2 An embodiment of this application provides an electrical device including an air supply device 100, which is used to generate a directional airflow to regulate the temperature of the external environment.

[0042] The structure of the central air supply device 100 of this application will be described below using an electrical appliance as an example, specifically a circulating fan. This embodiment is only used as an example and does not limit the technical scope of this application. It is understood that in other embodiments, the electrical appliance may also be other devices equipped with the air supply device 100, such as a cooling fan, etc., which are not limited here.

[0043] Please continue reading. Figure 1 and Figure 2 The electrical equipment includes a main body and an air supply device 100. The air supply device 100 is installed at one end of the main body and includes an air supply housing 20 and an air duct assembly 40 that are connected to each other. The air supply housing 20 includes an air outlet housing 21, a bracket 23 and an air inlet grille 25 that are connected to each other.

[0044] The air outlet housing 21 has a hollow shell structure. An air inlet 20a is formed at each of the two ends of the air outlet housing 21 in the first direction, and an air outlet is formed on the outer periphery of the air outlet housing 21. In the following embodiments, the air outlet housing 21 has a cylindrical structure with a central axis, and the axial direction of the air outlet housing 21 is defined as the first direction (i.e., Figure 1 (As shown in the X direction), the air outlet extends around the first direction.

[0045] Two brackets 23 are respectively installed at the two air inlets 20a of the air outlet housing 21 and snap-fitted to the air outlet housing 21. Two air inlet grilles 25 are respectively installed on the two brackets 23, and each air inlet grille 25 covers one air inlet 20a. The air duct assembly 40 is installed inside the air outlet housing 21 to create negative pressure to generate airflow. Thus, under the negative pressure of the air duct assembly 40, air from the outside environment can pass through the two air inlet grilles 25 into the air outlet housing 21, and then flow out through the air outlet via the air duct assembly 40.

[0046] like Figure 3 and Figure 4 As shown, in one specific embodiment, the air outlet housing 21 includes a housing body 211 and an air outlet grille 212. The housing body 211 is a hollow cylindrical structure with openings at both ends in a first direction, and the central axis of the housing body 211 is the central axis of the air outlet housing 21. Two air inlets 20a are formed at opposite ends of the housing body 211 in the first direction, and an air outlet is formed on the outer periphery of the housing body 211. The air outlet grille 212 is disposed at the air outlet and integrally formed with the housing body 211.

[0047] Since the air outlet grille 212 and the outer shell body 211 are integrally formed to form a complete air outlet shell 21, unlike the separate air outlet grille and outer shell body in the prior art, the structure of the air outlet shell 21 is simplified, the assembly steps of the air supply shell 20 are reduced, thereby improving the assembly efficiency of the air supply shell 20 and reducing the production cost of the air supply shell 20.

[0048] In some embodiments, the air outlet grille 212 is an arc-shaped mesh structure that extends around the central axis of the outer shell body 211, including a plurality of air outlet blades 2121 arranged at intervals along a first direction. Two adjacent air outlet blades 2121 form a grille air outlet, and the airflow generated under the negative pressure of the air duct assembly 40 can flow out simultaneously through the plurality of grille air outlets.

[0049] Furthermore, please combine Figure 3 , Figure 4 as well as Figure 5 As shown, the air outlet grille 212 has a virtual reference surface A, which is perpendicular to the first direction and passes through the center point of the air outlet in the first direction. The air outlet grille 212 is symmetrically arranged with respect to the virtual reference surface A. From one end near the central axis of the air outlet housing 21 to the end away from the central axis of the air outlet housing 21, the portion of the air outlet blades 2121 near the virtual reference surface A extends perpendicular to the central axis of the housing body 211, while the other air outlet blades 2121 away from the virtual reference surface A extend obliquely in a direction away from the virtual reference surface A.

[0050] Thus, the air outlet blades 2121 of the air outlet grille 212 have a discrete and gradually expanding structure. At least some of the air outlet blades 2121 on both sides of the virtual reference plane A extend outward at an angle, thereby expanding the air supply range of the air supply device 100 without changing the area of ​​the air outlet, thus achieving a better temperature regulation effect.

[0051] Furthermore, from one end near the central axis of the air outlet grille 212 to the end away from the central axis, the tilt angle α of each air outlet blade 2121 relative to the virtual reference surface A is 0° to 45°. This expands the air supply range without affecting the air volume or increasing the outlet noise. Conversely, if the tilt angle α is greater than 45°, the excessive tilt of the air outlet blade 2121 will obstruct the airflow, affecting the air volume and increasing the outlet noise. If the tilt angle α is less than 0°, it will actually reduce the air supply range.

[0052] In some embodiments, in each pair of adjacent air outlet blades 2121 located on either side of the virtual reference surface A, the tilt angle α of the air outlet blade 2121 away from the virtual reference surface A relative to the virtual reference surface A is equal to or greater than the tilt angle α of the air outlet blade 2121 close to the virtual reference surface A relative to the virtual reference surface A, thereby achieving a better air outlet effect.

[0053] It is understood that the number of air outlet blades 2121 of the air outlet grille 212 is not limited to this, and the tilt angle of each air outlet blade 2121 can also be set as needed to meet different air outlet requirements.

[0054] Please see Figure 3 , Figure 4 , Figure 6 The air outlet housing 21 has multiple housing clips 213 at its two opposite axial ends, and all housing clips 213 at any axial end of the air outlet housing 21 are arranged at intervals along the circumference of the air inlet 20a. Please refer to Figure 3 , Figure 7 As shown, the bracket 23 has a circular structure, and the bracket 23 is provided with multiple bracket buckles 231 arranged at intervals along its circumference. Figure 3 , Figure 8 as well as Figure 9 As shown, any one of the outer casing clips 213 and a bracket clip 231 are engaged with each other in the first direction, thereby enabling the air outlet casing 21 and the bracket 23 to be connected to each other.

[0055] It is understood that the shape of the outer shell buckle 213 and the bracket buckle 231 is not limited, and the number, setting position and arrangement of the outer shell buckle 213 and the bracket buckle 231 can also be set as needed to meet different connection requirements.

[0056] like Figure 3 , Figure 8 as well as Figure 9 As shown, in some embodiments, the bracket 23 is also provided with a plurality of bracket slots 232. The bracket slots 232 are located on one side of the bracket buckle 231 in the first direction. While the outer shell buckle 213 is engaged with the bracket buckle 231, one end of the outer shell buckle 213 can extend into the bracket slot 232, so that the upper limit in the direction around the first direction (i.e. the radial direction of the air outlet outer shell 21) is located in the bracket slot 232, so as to prevent the outer shell buckle 213 from disengaging from the bracket buckle 231.

[0057] Please combine Figure 3 , Figure 4 , Figure 6 , Figure 7 as well as Figure 10 As shown, in some embodiments, the air outlet housing 21 has multiple housing fixing portions 214 at its two opposite axial ends, and all housing fixing portions 214 at any axial end of the air outlet housing 21 are arranged at intervals along the circumference of the air inlet 20a. The bracket 23 has multiple bracket fixing portions 233, and all bracket fixing portions 233 are arranged at intervals along the circumference of the bracket 23. Each housing fixing portion 214 is threadedly connected to one bracket fixing portion 233, thereby fixing the air outlet housing 21 to the bracket 23.

[0058] In some specific embodiments, the outer casing fixing part 214 is a screw post, and the bracket fixing part 233 is a screw hole. The screw post and the screw hole are connected to each other, so that they can be fixed to each other by screws or other fasteners. It is understood that the number, setting position and arrangement of the outer casing fixing part 214 and the bracket fixing part 233 are not limited, and can be set as needed to meet different connection requirements.

[0059] Furthermore, the air outlet housing 21 has multiple reinforcing parts 215 protruding from the inner edges of its two opposite axial ends in the axial direction. Each reinforcing part 215 is correspondingly wrapped around an outer housing fixing part 214, thereby effectively improving the structural strength of the outer housing fixing part 214 and thus improving the connection stability between the air outlet housing 21 and the bracket 23.

[0060] Furthermore, the bracket 23 is provided with a plurality of circumferentially spaced limiting grooves 234, each limiting groove 234 being located on one side of the bracket fixing part 233 in the first direction, and the reinforcing part 215 being at least partially limited in the limiting groove 234, thereby avoiding interference between the reinforcing part 215 and the bracket 23.

[0061] In a preferred embodiment, the bracket 23 is provided with a plurality of guide grooves 235 arranged at intervals along the circumference. Each guide groove 235 is located on the side of a limiting groove 234 away from the fixing member of the bracket 23 and is connected to the limiting groove 234. The length of each guide groove 235 in the circumferential direction of the bracket 23 gradually decreases from the end away from the limiting groove 234 to the end connected to the limiting groove 234, thereby playing a guiding role for the reinforcing part 215 to assist in the alignment of the screw hole and the screw post.

[0062] In some embodiments, one of the air outlet housing 21 and the bracket 23 is provided with a positioning post 216, and the other of the air outlet housing 21 and the bracket 23 is provided with a positioning hole 236. The positioning post 216 is inserted into the positioning hole 236 along a first direction, thereby achieving preliminary positioning of the air outlet housing 21 and the bracket 23. Specifically, in one embodiment, the air outlet housing 21 is provided with a positioning post 216 at each of its two opposite axial ends, and each bracket 23 is provided with a corresponding positioning hole 236. It is understood that the number of positioning posts 216 and positioning holes 236 is not limited to this, and can be set as needed to meet different positioning requirements.

[0063] Please see Figure 7 , Figure 11 as well as Figure 12 In some embodiments, the air intake grille 25 has a disc-shaped mesh structure, and the bracket 23 has a plurality of mounting slots 237 arranged circumferentially. The edge of the air intake grille 25 is provided with a bent and extended grille buckle 252, which is rotated and snapped into the mounting slot 237, thereby allowing the air intake grille 25 to be installed on the bracket 23.

[0064] In one specific embodiment, the grille buckle 252 is approximately "L"-shaped, with one end protruding from the air inlet grille 25 and the other end bent and extending radially along the air inlet grille 25. The length of the end of the grille buckle 252 away from the air inlet grille 25 is less than the length of the mounting groove 237 on the bracket 23. Thus, the grille buckle 252 can extend into the mounting groove 237 in the first direction, and then the air inlet grille 25 can be rotated relative to the bracket 23 so that the grille buckle 252 abuts against the bracket 23 in the first direction, thereby achieving mutual engagement between the bracket 23 and the air inlet grille 25.

[0065] In some embodiments, the edge of the air inlet grille 25 is further provided with a grille fixing part 254, which can be threadedly connected to the air outlet housing 21, thereby fixing the air inlet grille 25 to the air outlet housing 21. Specifically, in one embodiment, the grille fixing part 254 is a screw post, and the air outlet housing 21 is provided with screw holes that match the screw post, so the two can be fixedly connected by screws or other fasteners.

[0066] like Figure 7As shown, in some embodiments, the bracket 23 is further provided with a support portion 238, and the bracket 23 is connected to the main body through the support portion 238, so that the air supply housing 20 is installed as a whole at one end of the main body.

[0067] In this way, the bracket 23 is snapped together with the air outlet housing 21, and the air inlet grille 25 is rotated and snapped together with the bracket 23, so that the air outlet housing 21, the bracket 23 and the air outlet housing 21 together form a whole, and are connected to the main body through the bracket 23. The assembly method is simple and makes the overall structure of the electrical equipment more stable.

[0068] In some embodiments, the bracket 23 includes a central mounting portion 2392, at least one mounting rib 2394, and a bracket body 2396. The central mounting portion 2392 has a duct limiting hole 2392a, the central axis of which coincides with the central axis of the air outlet housing 21. The duct assembly 40 is mounted between the two brackets 23 through this duct limiting hole 2392a. One end of the mounting rib 2394 is connected to the central mounting portion 2392, and the other end extends away from the central mounting portion 2392. The mounting rib 2394 has a functional module mounting position for mounting functional modules 60 such as evaporative cooling pads (e.g.,...). Figure 2 (As shown). The bracket body 2396 is roughly in the shape of a ring. The bracket body 2396 surrounds the central mounting part 2392 and connects to the end of the mounting rib 2394 away from the central mounting part 2392. The bracket buckle 231, bracket slot 232, bracket fixing part 233 and other structures are all provided on the bracket body 2396.

[0069] The assembly process of the aforementioned air supply housing 20 is as follows:

[0070] First, the positioning hole 236 on the bracket 23 and the positioning post 216 on the bracket 23 cooperate with each other to position the bracket 23 relative to the outer shell. Then, the bracket 23 and the air outlet outer shell 21 are connected by the mutual engagement of the bracket buckle 231 and the outer shell buckle 213. Finally, the fasteners are inserted into the corresponding connected outer shell fixing part 214 and bracket fixing part 233 to fix the bracket 23 and the air outlet outer shell 21.

[0071] Then, pass the grille buckle 252 on the air inlet grille 25 through the mounting groove 237 on the bracket 23 and rotate it so that the air inlet grille 25 is fitted onto the bracket 23. Finally, insert the fastener into the corresponding connected grille fixing part 254 and bracket fixing part 233 to fix the air outlet grille 212 to the air outlet housing 21.

[0072] The aforementioned air outlet housing 21, air supply housing 20, and electrical equipment, along with the air outlet grille 212 integrated with the main housing body 211, simplify the overall structure of the air outlet housing 21. Furthermore, the discretely expanding structure of the air outlet grille 212, combined with its integration with the main housing body 211, effectively expands the air supply range and increases airflow, resulting in better temperature regulation. In addition, the air outlet housing 21, bracket 23, and air inlet grille 25 are interconnected via snap-fit ​​mechanisms, screw posts, and other structures, ensuring both high connection strength and high installation efficiency.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air supply housing, characterized in that, include: An air outlet housing (21) has an air inlet (20a) formed at opposite ends in a first direction. Two brackets (23) are respectively installed at the two air inlets (20a) and connected to the air outlet housing (21); as well as Two air intake grilles (25) are respectively connected to two brackets (23), and each air intake grille (25) covers one air intake (20a).

2. The air supply housing according to claim 1, characterized in that, The air outlet housing (21) is provided with a housing buckle (213), and the bracket (23) is provided with a bracket buckle (231). The housing buckle (213) and the bracket buckle (231) are engaged with each other in the first direction.

3. The air supply housing according to claim 2, characterized in that, The bracket (23) has a bracket slot (232), and the upper limit of the outer shell buckle (213) in the direction surrounding the first direction is located in the bracket slot (232).

4. The air supply housing according to claim 1, characterized in that, The air outlet housing (21) is provided with a housing fixing part (214), and the bracket (23) is provided with a bracket fixing part (233). The housing fixing part (214) and the bracket fixing part (233) are threadedly connected.

5. The air supply housing according to claim 4, characterized in that, The air outlet housing (21) is provided with a reinforcing part (215), which is arranged around the housing fixing part (214). The bracket (23) is provided with a limiting groove (234) located on one side of the bracket (23) fixing member in the first direction. The reinforcing part (215) is at least partially limited in the limiting groove (234).

6. The air supply housing according to claim 5, characterized in that, The bracket (23) is provided with a guide groove (235), the guide groove (235) is located on the side of the limiting groove (234) away from the bracket (23) fixing member and is connected to the limiting groove (234), and the length of the guide groove (235) in the circumferential direction of the bracket (23) gradually decreases from the end away from the limiting groove (234) to the end connected to the limiting groove (234).

7. The air supply housing according to claim 1, characterized in that, One of the air outlet housing (21) and the bracket (23) is provided with a positioning post (216), and the other of the air outlet housing (21) and the bracket (23) is provided with a positioning hole (236). The positioning post (216) is inserted into the positioning hole (236) along the first direction.

8. The air supply housing according to claim 1, characterized in that, The bracket (23) has an installation groove (237), and the air inlet grille (25) has a bent and extended grille buckle (252). The grille buckle (252) is rotatably limited to the bracket (23) through the installation groove (237).

9. The air supply housing according to claim 1, characterized in that, The bracket (23) is provided with: The central mounting section (2392) is provided with an air duct limiting hole (2392a); At least one mounting rib (2394) is provided, with one end connected to the central mounting portion (2392) and the other end extending away from the central mounting portion (2392). The mounting rib (2394) is provided with a functional module mounting position. The bracket body (2396) surrounds the central mounting part (2392) and connects the mounting rib (2394) to one end away from the central mounting part (2392).

10. An electrical appliance, characterized in that, Includes the air supply housing as described in any one of claims 1 to 9.

11. The electrical equipment according to claim 10, characterized in that, The electrical device is a circulating fan.

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