CN114876875A - Fan shell subassembly and indirect heating equipment - Google Patents

Abstract

The invention provides a fan shell assembly and heat exchange equipment, wherein the fan shell assembly comprises a base, a housing and an air outlet grid, wherein the housing is arranged on the base, at least one side wall of the housing is of a curved surface structure, an air outlet is formed in the curved surface structure, the air outlet is open, the open end of the air outlet faces the base, and two opposite edges of the air outlet are provided with avoidance notches; at least two opposite edges of the air outlet grid are provided with a guide sliding groove and a limiting protrusion, and after the limiting protrusion penetrates through the avoidance notch, the edge of the air outlet on the same side is located in the guide sliding groove on the corresponding side, so that the air outlet grid can start to slide until the air outlet is completely shielded from the avoidance notch. The invention solves the problem that the assembly difficulty of the air outlet grid and the curved surface structure of the fan housing assembly in the prior art is higher.

Description

Fan housing components and heat exchange equipment

technical field

The invention relates to the technical field of heating equipment, in particular, to a fan casing assembly and heat exchange equipment.

Background technique

In the prior art, at least one side wall surface of the fan casing assembly is set to a curved structure to improve the overall appearance of the fan casing assembly, and the arrangement of the air outlet grille on the curved structure increases the assembly difficulty between the two. The air outlet grille is forcibly installed on the curved structure, which easily leads to the deformation of the curved structure, which seriously affects the quality of the fan casing assembly.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a fan casing assembly and heat exchange equipment, so as to solve the problem that the air outlet grille and the curved structure of the fan casing assembly in the prior art are difficult to assemble.

In order to achieve the above object, according to an aspect of the present invention, a fan casing assembly is provided, comprising a base, a cover and an air outlet grille, wherein the cover is arranged on the base, and at least one side wall of the cover is a curved surface structure, The curved surface structure is provided with an air outlet, the air outlet is open, and the open end of the air outlet faces the base, and two opposite edges of the air outlet are provided with avoidance gaps; at least two opposite edges of the air outlet grille have The guide chute and the limit protrusion, and when the limit protrusion passes through the avoidance gap, the edge of the air outlet on the same side is located in the guide chute on the corresponding side, so that the air grille can slide from the avoidance gap until Completely block the air outlet.

Further, in the direction from the closed end to the open end of the air outlet, the air outlet grille extends in a curved shape, and the curved radian of the air outlet grille is consistent with the curved radian of the curved structure at the air outlet.

Further, the air outlet grille includes a plate body, a boss structure and an air outlet air duct, wherein the boss structure is arranged on the inner surface of the plate body, and at least two opposite side wall surfaces of the boss structure are provided with limit protrusions. , and a guide chute is formed between the limiting protrusion and the edge of the plate body; the air outlet duct runs through the plate body and the boss structure.

Further, when the edge of the air outlet on the same side has an escape notch, the edge of the corresponding side of the air outlet grille has at least two limit protrusions, and at least one limit protrusion at the end is adjacent to it. The distance between the other limiting protrusions is greater than or equal to the distance from the avoidance notch on the same side to the open end of the air outlet.

Further, when there are two or more avoidance notches at the edge of the air outlet on the same side, the edge of the corresponding side of the air outlet grille has the same number of limit protrusions as the avoidance notches, and each limit protrusion. They are set in one-to-one correspondence with each avoidance gap; or, the number of limit protrusions at the edge of the corresponding side of the air outlet grille is greater than the number of avoidance gaps, and the plurality of limit protrusions are located at the closed end of the air outlet. There are two groups in the direction of the open end. The number of the first group of limit protrusions is the same as the number of avoidance notches and they are set in a one-to-one correspondence. The number of the second group of limit protrusions is at least one, and the second group The distance between the set of limiting protrusions and two mutually adjacent limiting protrusions in the first set of limiting protrusions is greater than or equal to the distance from the avoidance notch near the open end to the open end of the air outlet.

Further, the side of the air outlet grille away from the closed end of the air outlet is protruded from the open end of the air outlet, and the two opposite edges of the air outlet grille in the non-sliding direction are provided with limit grooves. When installed in place, the edge of the closed end of the air outlet is located in one of the two limiting grooves, and a part of the edge of the base is located in the other of the two limiting grooves.

Further, the air outlet grille includes a plate body and a boss structure, the boss structure is arranged on the inner side surface of the plate body, and the two opposite sidewall surfaces in the non-sliding direction of the boss structure are provided with limit structures. A limit groove is formed between the structure and the edge of the plate body.

Further, the cross section of the limiting protrusion is U-shaped, and the surface of the U-shaped limiting protrusion facing the side of the plate body is consistent with the curvature of the plate body.

According to another aspect of the present invention, a heat exchange device is provided, comprising the above fan housing assembly.

Further, the heat exchange equipment includes at least one of a heater and an air cooler.

By applying the technical solution of the present invention, the air outlet of the casing is arranged in an open structure form, and the open end of the air outlet is arranged toward the base, and the two opposite edges of the air outlet are provided with avoidance gaps, so that When installing the air outlet grille on the housing, it is only necessary to pass the limit protrusion on the air outlet grille through the avoidance gap, so that the edge of the air outlet on the same side can be located in the guide chute on the corresponding side, thereby ensuring The air outlet grille can be slid from the avoidance gap and installed at the air outlet, which greatly reduces the sliding path of the air outlet grille, thus ensuring the convenience of installation of the air outlet grille.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 shows a schematic structural diagram of a fan casing assembly according to an optional embodiment of the present invention;

FIG. 2 shows a schematic structural diagram of the fan housing assembly in FIG. 1 from another perspective;

Fig. 3 shows the structural schematic diagram of the casing of the fan housing assembly in Fig. 1;

Fig. 4 shows the structural schematic diagram of the fan casing assembly in Fig. 1 when the casing and the air outlet grille are in a disassembled state;

Fig. 5 shows the structural schematic diagram of the air outlet grille in Fig. 4;

FIG. 6 shows a schematic structural diagram of the air outlet grille in FIG. 4 from another perspective;

Fig. 7 shows the structural schematic diagram of the base of the fan housing assembly in Fig. 1;

FIG. 8 shows a schematic diagram of the internal structure of the fan casing assembly in FIG. 1 when the casing and the air outlet grille are in an assembled state.

Wherein, the above-mentioned drawings include the following reference signs:

10. Base;

20. Housing; 21. Surface structure; 211. Air outlet; 212. Avoidance gap; 22. First positioning structure;

30, air outlet grille; 31, guide chute; 32, limit protrusion; 33, plate body; 34, boss structure; 35, air outlet duct; 36, limit groove; 37, limit structure; 38 , the second positioning structure; 39, the lug structure;

40. Decorative parts.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to solve the problem of difficulty in assembling the air outlet grille and the curved structure of the fan casing assembly in the prior art, the present invention provides a fan casing assembly and heat exchange equipment, wherein the heat exchange equipment includes the above and the following fans housing assembly.

Further, the heat exchange equipment includes at least one of a heater and an air cooler, and the following description will be given by taking the heater as an example in the present application.

As shown in FIGS. 1 to 8 , the fan casing assembly includes a base 10 , a cover 20 and an air outlet grille 30 , wherein the cover 20 is arranged on the base 10 , and at least one side wall of the cover 20 is a curved structure 21 , and the curved The structure 21 is provided with an air outlet 211, the air outlet 211 is open, and the open end of the air outlet 211 faces the base 10, and two opposite edges of the air outlet 211 are provided with avoidance gaps 212; Two opposite edges are provided with guide chute 31 and limit protrusion 32, and after limit protrusion 32 passes through the avoidance gap 212, the edge of the air outlet 211 on the same side is located in the guide chute 31 on the corresponding side, So that the air outlet grill 30 can start to slide from the avoidance gap 212 until the air outlet 211 is completely blocked.

By arranging the air outlet 211 of the housing 20 to have an open structure, and the open end of the air outlet 211 is disposed toward the base 10, and the two opposite edges of the air outlet 211 are provided with avoidance gaps 212, so that, When installing the air outlet grille 30 on the housing 20, it is only necessary to pass the limiting protrusions 32 on the air outlet grille 30 through the avoidance gap 212, so that the edge of the air outlet 211 on the same side can be positioned on the guide slide on the corresponding side. into the groove 31 , thereby ensuring that the air outlet grille 30 can slide from the avoidance gap 212 and be installed at the air outlet 211 , greatly reducing the sliding path of the air outlet grille 30 , thereby ensuring the installation convenience of the air outlet grille 30 .

It should be noted that, in the present application, the cross-sectional area of the cross-section of the avoidance notch 212 is larger than the cross-sectional area of the limit protrusion 32 in the direction of passing through the avoidance notch 212 , so as to ensure that the limit protrusion 32 can smoothly pass through the avoidance notch 212 .

As shown in FIG. 2 , in the direction from the closed end to the open end of the air outlet 211 , the air outlet grille 30 extends in a curved shape, and the curved arc of the air outlet grille 30 is consistent with the curved arc of the curved structure 21 at the air outlet 211 . . In this way, the bonding reliability between the air outlet grille 30 and the curved structure 21 is ensured, thereby ensuring the assembly reliability between the two.

As shown in FIGS. 5 and 6 , the air outlet grille 30 includes a plate body 33 , a boss structure 34 and an air outlet duct 35 , wherein the boss structure 34 is arranged on the inner surface of the plate body 33 , and the boss structure 34 is Limiting protrusions 32 are provided on at least two opposite side walls, and guide chute 31 is formed between the limiting protrusions 32 and the edge of the plate body 33 ; In this way, the guide chute 31 plays a role of guiding the sliding of the air outlet grille 30 at the air outlet 211 of the curved structure 21 , so as to ensure the sliding reliability of the air outlet grille 30 .

As shown in FIG. 3 to FIG. 6 , when the edge of the air outlet 211 on the same side has an escape notch 212 , the edge of the corresponding side of the air outlet grill 30 has at least two limiting protrusions 32 , which are at least located at the end The distance between one limiting protrusion 32 of the upper part and the other limiting protrusion 32 adjacent to it is greater than or equal to the distance from the avoidance notch 212 on the same side to the open end of the air outlet 211 . In this way, it is ensured that after the limiting protrusion 32 close to the closed end of the air outlet 211 passes through the avoidance gap 212 , another limiting protrusion 32 adjacent to the limiting protrusion 32 can be located just at the end of the open end of the air outlet 211 . even at a position other than the end of the open end of the air outlet 211, preventing another limiting protrusion 32 adjacent to the limiting protrusion 32 from being blocked by the side edge of the air outlet 211 and causing the air close to the air outlet 211 The limiting protrusion 32 at the closed end cannot pass through the avoidance gap 212 smoothly.

It should be noted that the above-mentioned "at least one limiting protrusion 32 at the end" refers to the limiting protrusion 32 on the side close to the closed end of the air outlet 211 .

It should be noted that, in a not-shown embodiment of the present application, when the edge of the air outlet 211 on the same side has two or more avoidance notches 212, the edge of the corresponding side of the air outlet grill 30 has The limit protrusions 32 are the same in number as the avoidance notches 212 , and each limiter protrusion 32 is provided in a one-to-one correspondence with each avoidance notches 212 . In this way, when the air outlet grille 30 is installed at the air outlet 211 of the curved structure 21, it is ensured that each limiting protrusion 32 can pass through the corresponding avoidance gaps 212, thereby ensuring the sliding path of the air outlet grille 30 during the installation process. as short as possible.

It should be noted that the above-mentioned "two or more avoidance gaps 212 at the edge of the air outlet 211 on the same side" can be understood as a continuous polyline segment after being wirelessly divided on the circle, that is, the assembly of the large curved surface The assembly is transformed into a small curved surface, so that the casing 20 and the air outlet grille 30 are within their respective elastic ranges during the assembly process, so as to ensure that the two can still maintain a smooth curved surface after the assembly is completed, thereby ensuring the quality of the product. In order to reduce the sliding path of the air outlet grille 30, the convenience of sliding installation of the air outlet grille 30 is ensured.

It should be noted that, in another not-shown embodiment of the present application, the number of the limiting protrusions 32 at the edge of the corresponding side of the air outlet grille 30 is greater than the number of the avoidance notches 212, and the plurality of limiting The position protrusions 32 are divided into two groups in the direction from the closed end to the open end of the air outlet 211 . The number of the limit protrusions 32 is at least one, and the distance between the second set of limit protrusions 32 and the two limit protrusions 32 adjacent to each other in the first group of limit protrusions 32 is greater than or equal to the proximity of the opening. The distance from the escape notch 212 of the mouth end to the open end of the air outlet 211 . In this way, when the air outlet grille 30 is installed at the air outlet 211 of the curved structure 21 , it is ensured that the first set of limiting protrusions 32 can pass through the corresponding avoidance gaps 212 one by one, thereby greatly reducing the size of the air outlet grille. 30 sliding path during the installation process, in addition, the arrangement of the second set of limiting protrusions 32 further increases the guiding and limiting effect on the air outlet grille 30 .

As shown in FIG. 1 and FIG. 8 , the side of the air outlet grille 30 away from the closed end of the air outlet 211 is protruded from the open end of the air outlet 211 , and the two opposite edges of the air outlet grille 30 in the non-sliding direction are provided. Each has a limit slot 36. When the air outlet grille 30 is installed in place, the edge of the closed end of the air outlet 211 is located in one limit slot 36 of the two limit slots 36, and a part of the edge of the base 10 is located in the two limit slots. 36 in another limiting groove 36. In this way, the protruding portion of the air outlet grille 30 can be assembled with the edge of the base 10 , thereby ensuring the installation stability of the air outlet grille 30 .

As shown in FIG. 1 to FIG. 8 , the air outlet grille 30 includes a plate body 33 and a boss structure 34 . The boss structure 34 is disposed on the inner surface of the plate body 33 . The two opposite sides of the boss structure 34 in the non-sliding direction Limiting structures 37 are provided on the sidewalls of the plates 37 , and a limiting groove 36 is formed between the limiting structures 37 and the edge of the plate body 33 . In this way, the limiting effect on the non-sliding direction of the air outlet grille 30 is ensured, thereby ensuring the installation stability of the air outlet grille 30 .

As shown in FIG. 4 and FIG. 5 , there are multiple limiting structures 37 , and the multiple limiting structures 37 are arranged at intervals along the length direction of the sidewall surface. In this way, it is ensured that the limiting grooves 36 are formed between the plurality of limiting structures 37 and the edge of the plate body 33 , thereby ensuring the reliability of the connection between the air outlet grille 30 and the base 10 and the connection between the air outlet grille 30 and the closed end of the air outlet 211 . reliability.

It should be noted that, in an embodiment not shown in the present application, the limiting structure 37 is one that extends continuously along the length direction of the sidewall surface. In this way, it is beneficial to increase the contact surface between the groove wall surface of the limiting groove 36 on one side and a part of the edge of the base 10 , thereby ensuring the reliability of the clipping between the limiting groove 36 and a part of the edge of the base 10 , and increasing the The contact surface between the groove wall surface of the limiting groove 36 and the edge of the closed end of the air outlet 211 ensures the reliability of the clamping between the limiting groove 36 and the closed end of the air outlet 211 .

Of course, there may also be a plurality of limiting structures 37 on one side, and one limiting structure 37 extending continuously along the length direction of the sidewall surface on the other side.

As shown in FIGS. 3 to 6 , the casing 20 is provided with a first positioning structure 22 at the closed end of the air outlet 211 , and a second positioning structure 38 is provided at the position opposite to the first positioning structure 22 of the air outlet grille 30 . The air outlet grille 30 is connected to the housing 20 through the cooperation of the second positioning structure 38 and the first positioning structure 22 . In this way, the reliability of the connection between the air outlet grille 30 and the housing 20 is ensured.

As shown in FIG. 3 to FIG. 6 , the first positioning structure 22 is a positioning column protruding from the inner wall surface of the casing 20 , and the positioning column extends along the direction from the closed end to the open end of the air outlet 211 , and the air outlet A lug structure 39 is provided on the inner wall surface of the grille 30 facing the housing 20 , the second positioning structure 38 is a positioning hole opened on the lug structure 39 , and the positioning column is inserted into the positioning hole. In this way, the assembly relationship between the positioning column and the positioning hole is relatively simple, and is easy to manufacture, and finally a nut is screwed on the end of the positioning column to ensure the reliability of the connection between the two.

As shown in FIG. 8 , of course, the diameter of the positioning column can also be larger than the diameter of the positioning hole. When the positioning column is aligned with the positioning hole, the fastening screw is passed through the positioning hole and connected with the positioning column, so as to realize the connection between the air outlet grille 30 and the positioning column. Fastening connection between housings 20 .

Optionally, the air outlet grille 30 and the casing 20 may not be fixed by the cooperation between the positioning column and the positioning hole, or rib columns may be designed for positioning, and the base 10 and the casing 20 can be fixed by the cooperation.

As shown in FIG. 6 , the cross section of the limiting protrusion 32 is U-shaped, and the surface of the U-shaped limiting protrusion 32 facing the side of the plate body 33 is consistent with the curvature of the plate body 33 . In this way, by setting the cross-section of the limiting protrusion 32 to have a U-shaped structure, it is beneficial to the lightweight design of the limiting protrusion 32. Further, by orienting the U-shaped limiting protrusion 32 toward the plate body The surface on one side of 33 is set in a structural form consistent with the curvature of the plate body 33 to ensure that the guide chute 31 formed between the surface of the limiting protrusion 32 facing the side of the plate body 33 and the inner wall surface of the edge of the plate body 33 . The bending arc is consistent with the bending arc of the air outlet grille 30 , so as to ensure the installation reliability of the air outlet grille 30 installed at the air outlet 211 .

It should be noted that the present application enables the process of assembling the air grille 30 on the curved structure 21 to be realized, and at the same time, the installation stability of the air outlet grille 30 can also be ensured.

It should be noted that, as shown in FIG. 1 , the fan casing assembly further includes a decorative piece 40 , and the decorative piece 40 is surrounded by three connected outer edges of the curved structure 21 of the casing 20 away from the base 10 .

Optionally, the curved structure 21 with a larger curved surface can completely rely on the elasticity of the material. By arranging elastic buckles at the edge of the air outlet 211, in the process of installing the air outlet grille 30 on the curved surface structure 21, the air outlet grille is installed. 30 is pressed in from the edge of the air outlet 211, and the snap buckle is deformed during the pressing process to provide a space for the air outlet grill 30 to avoid. at the air outlet 211 .

Optionally, the cross-sectional shape of the limiting protrusion 32 is not limited to the above-mentioned U shape, and may be other shapes, as long as the guide chute 31 is formed between the limiting protrusion 32 and the plate body 33 .

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, acts, devices, components, and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A fan housing assembly, comprising:

a base (10);

the air conditioner comprises a cover shell (20), wherein the cover shell (20) is arranged on the base (10), at least one side wall of the cover shell (20) is a curved surface structure (21), an air outlet (211) is formed in the curved surface structure (21), the air outlet (211) is open, the open end of the air outlet (211) faces the base (10), and two opposite edges of the air outlet (211) are provided with avoidance notches (212);

go out tuber wind bars (30), two at least relative edges of going out tuber wind bars (30) have direction spout (31) and spacing arch (32), and work as spacing arch (32) pass after dodging breach (212), the homonymy the edge of air outlet (211) is located the corresponding side in direction spout (31), so that it can follow to go out tuber wind bars (30) dodge breach (212) department and begin to slide until sheltering from completely air outlet (211).

2. The fan housing assembly according to claim 1, wherein in a direction from the closed end of the air outlet (211) to the open end, the air outlet grill (30) extends in a curved shape, and a curvature of the air outlet grill (30) is identical to a curvature of the curved surface structure (21) at the air outlet (211).

3. The fan housing assembly of claim 1, wherein the air outlet grill (30) comprises:

a plate body (33);

the boss structure (34) is arranged on the inner side surface of the plate body (33), the limiting protrusions (32) are arranged on at least two opposite side wall surfaces of the boss structure (34), and the guide sliding groove (31) is formed between the limiting protrusions (32) and the edge of the plate body (33);

and the air outlet duct (35), wherein the air outlet duct (35) penetrates through the plate body (33) and the boss structure (34).

4. The blower housing assembly of claim 1,

when the edge of air outlet (211) has one of homonymy when dodging breach (212), the edge of the corresponding side of air-out bars (30) has at least two spacing arch (32), and is located one of tip at least spacing arch (32) and its adjacent another spacing distance between spacing arch (32) more than or equal to homonymy dodge breach (212) extremely the distance of the opening end of air outlet (211).

5. The blower housing assembly according to claim 1, wherein when two or more escape notches (212) are provided at the edge of the air outlet (211) on the same side,

the edges of the corresponding sides of the air outlet grid (30) are provided with the limiting protrusions (32) with the same number as the avoidance notches (212), and each limiting protrusion (32) is arranged in one-to-one correspondence with each avoidance notch (212); or,

the edge of the corresponding side of air-out bars (30) has the number of spacing arch (32) is greater than dodge the number of breach (212), and a plurality of spacing arch (32) are in the blind end of air outlet (211) extremely divide into two sets ofly in the direction of open end, first group spacing arch (32) the number with dodge the same and the one-to-one setting of number of breach (212), the second group the number of spacing arch (32) is one at least, and the second group spacing arch (32) and first group adjacent two each other in spacing arch (32) distance more than or equal to between spacing arch (32) is close to the open end dodge breach (212) extremely the distance of the open end of air outlet (211).

6. The fan housing assembly according to claim 1, wherein one side of the air outlet grill (30) away from the closed end of the air outlet (211) protrudes out of the open end of the air outlet (211), two opposite edges of the air outlet grill (30) in the non-sliding direction are provided with limiting grooves (36), when the air outlet grill (30) is installed in place, the edge of the closed end of the air outlet (211) is located in one of the two limiting grooves (36), and a part of the edge of the base (10) is located in the other limiting groove (36) of the two limiting grooves (36).

7. The fan housing assembly of claim 6, wherein the air outlet grill (30) comprises:

a plate body (33);

boss structure (34), boss structure (34) set up on the inboard surface of plate body (33), all be provided with limit structure (37) on two relative side wall faces in the non-slip direction of boss structure (34), limit structure (37) with form between the edge of plate body (33) spacing groove (36).

8. The fan housing assembly according to claim 7, wherein the cross section of the limiting protrusion (32) is U-shaped, and the surface of the U-shaped limiting protrusion (32) facing the plate body (33) is in accordance with the bending radian of the plate body (33).

9. A heat exchange device comprising a fan housing assembly according to any one of claims 1 to 8.

10. The heat exchange device of claim 9, wherein the heat exchange device comprises at least one of a warm air blower and a cold air blower.

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