Shell assembly and ceiling electric appliance with same

Abstract

The utility model provides a housing assembly and a ceiling electric appliance with the same, and the housing assembly comprises a housing which is provided with an air channel, and the air channel is provided with an opening; the spliced volute is movably connected with the shell, so that the spliced volute is provided with a plugging position for at least partially plugging the opening and an avoiding position far away from the opening; when the spliced volute is located at the blocking position, at least part of the spliced volute is located outside the shell, and the spliced volute and part of the side wall of the shell define the side wall of the air flue, so that the air flue is expanded as much as possible under the condition that the installation space of the shell assembly is limited, and the ventilation performance of the shell assembly is improved; the problem that in the prior art, due to the fact that the installation space of a shell assembly is limited, the air volume is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of ceiling electrical technology, and more specifically, to a housing assembly and a ceiling electrical appliance having the same. This application claims priority to the patent application filed on July 26, 2024, with China National Intellectual Property Administration, application number 2024217947597, entitled "Housing Assembly and Ceiling Electrical Appliance Having the Same". Background Technology

[0002] Common ceiling-mounted electrical appliances include air conditioners, bathroom heaters, and fresh air systems. Among these, bathroom heaters, as a commonly used indoor heating device, primarily function to raise the temperature of the bathroom by heating the air. Bathroom heaters typically consist of a housing, impeller, and volute, with the size of the impeller and volute closely related to the performance of the heater.

[0003] In existing technologies, attempts to improve the performance of bathroom heaters involve modifying the dimensions of the impeller and volute, maximizing their size within the original dimensions. However, this method is limited by the dimensions of the enclosure, which in turn are constrained by the dimensions of the ceiling panels and the width of the joists. This limitation prevents the performance improvements of the bathroom heaters from meeting the high demands of users.

[0004] There is currently no effective solution to the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a housing assembly and a ceiling appliance having the same, in order to solve the problem of low air volume caused by limited installation space in the existing housing assembly.

[0006] To achieve the above objectives, according to one aspect of the present invention, a housing assembly is provided, comprising: a housing having an air duct with an opening; and a splicing volute movably connected to the housing such that the splicing volute has a blocking position that at least partially blocks the opening, and a clearance position away from the opening; wherein, when the splicing volute is in the blocking position, at least a portion of the splicing volute is located outside the housing, and the sidewalls of the splicing volute and a portion of the housing enclose the sidewalls of the air duct.

[0007] Furthermore, the shell includes a volute side plate. When the spliced ​​volute is in the blocking position, the side wall of the spliced ​​volute and the volute side plate and / or part of the shell is formed as a partial side wall of the air duct. The partial side wall forming the air duct is at least partially arc-shaped.

[0008] Furthermore, when the spliced ​​volute is in the avoidance position, the spliced ​​volute is housed inside the shell.

[0009] Furthermore, the spliced ​​volute can be moved along the width of the shell to a blocking position and an avoidance position.

[0010] Furthermore, when the spliced ​​volute is in the sealing position, the edge of the spliced ​​volute is smoothly transitioned to the edge of the opening.

[0011] Furthermore, the housing assembly includes a sliding component, wherein the splicing volute is movably connected to the housing via the sliding component, and the splicing volute is movably disposed relative to the housing via the sliding component, so that the splicing volute can switch between a blocking position and an avoidance position.

[0012] Furthermore, the sliding assembly includes a first sliding member and a second sliding member, one of which is disposed on the housing, and the other of which is disposed on the splicing volute.

[0013] Furthermore, one of the first and second sliding members is a guide rail, and the other of the first and second sliding members is a slider that cooperates with the guide rail. The slider is slidably arranged along the length direction of the guide rail.

[0014] Furthermore, a guide rail is provided on the housing, and a slider is provided on the splicing volute. The length direction of the guide rail extends along the width direction of the housing.

[0015] Furthermore, there are one or more guide rails, and each guide rail is provided with at least one slider.

[0016] Furthermore, the spliced ​​volute includes: a spliced ​​volute body extending along the length of the shell; a spliced ​​volute side plate on each of the two sides along the length of the spliced ​​volute body; the two spliced ​​volute side plates being arranged opposite to each other; and the two spliced ​​volute side plates and the spliced ​​volute body forming a volute structure with an opening on one side; the opening of the volute structure facing the interior of the shell; at least one spliced ​​volute side plate being movably connected to the shell via a sliding component; when the spliced ​​volute is in the blocked position, the edge of the opening of the volute structure is smoothly transitioned to the edge of the opening.

[0017] Furthermore, the main body of the spliced ​​volute is an arc-shaped plate.

[0018] According to another aspect of the present invention, a ceiling electrical appliance is provided, including a housing assembly, wherein the housing assembly is the aforementioned housing assembly.

[0019] By applying the technical solution of this utility model, the splicing volute and the housing are movably connected. When the housing assembly is installed, the splicing volute is located in an avoidance position, and when working, the splicing volute is located in a blocking position, so that the housing assembly overcomes the problem of low air volume caused by installation space limitations.

[0020] The housing assembly of this application can also control the position of the splicing volute according to the installation environment, thereby achieving the technical effect that even if the size of the housing assembly is increased, it will not be limited by the installation space. That is, in addition to increasing the air volume, the housing assembly of this application can also reduce the installation difficulty of the housing assembly, solve the problem of low air volume caused by the limited installation space of the housing assembly in the prior art, and effectively improve the practicality of the housing assembly. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a first embodiment of the housing assembly according to the present invention is shown;

[0023] Figure 2 A schematic diagram of the structure of a second embodiment of the housing assembly according to the present invention is shown;

[0024] Figure 3 A schematic diagram of the structure of a third embodiment of the housing assembly according to the present invention is shown;

[0025] Figure 4 A schematic diagram of the structure of a fourth embodiment of the housing assembly according to the present invention is shown;

[0026] Figure 5 A structural schematic diagram of an embodiment of the ceiling electrical appliance according to the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 10. Shell; 101. Opening;

[0029] 11. Air duct; 111. Air outlet; 112. Ventilation vent;

[0030] 12. Volute side plates;

[0031] 20. Assemble the volute casing; 21. Assemble the main body of the volute casing; 22. Assemble the side plates of the volute casing;

[0032] 30. Sliding component; 31. First slider; 32. Second slider;

[0033] 40. Impeller. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0038] Combination Figures 1 to 4 As shown, according to a specific embodiment of the present invention, a housing assembly is provided.

[0039] Specifically, the housing 10 and the splicing volute 20 are included. The housing 10 has an air duct 11 with an opening 101. The splicing volute 20 is movably connected to the housing 10, such that the splicing volute 20 has a blocking position that at least partially blocks the opening 101, and a clearance position that is away from the opening 101. When the splicing volute 20 is in the blocking position, at least a portion of the splicing volute 20 is located outside the housing 10, and the splicing volute 20 and a portion of the sidewall of the housing 10 form the sidewall of the air duct 11.

[0040] Combination Figures 1 to 5 As shown, in this embodiment, the splicing volute 20 and the housing 10 can be connected by sliding, rotating or magnetic connection. During operation, the splicing volute 20 is in the blocked position, at least part of the splicing volute 20 is outside the housing 10. The splicing volute 20 and the volute side plate 12 form the side wall of the air duct 11, which maximizes the flow area of ​​the air duct 11 and improves the air outlet performance of the housing assembly. The splicing volute 20 can completely seal the opening 101 or partially block the opening 101, as long as most of the airflow can be ensured to flow out along the air duct. This solves the problem of low air volume caused by limited installation space in the housing assembly and improves the practicality of the housing assembly.

[0041] Optionally, the housing 10 includes a volute side plate 12. When the spliced ​​volute 20 is in the blocking position, the spliced ​​volute 20 and the volute side plate 12 form part of the side wall of the air duct 11. At least part of the side wall forming the air duct 11 is an arc-shaped structure. This arrangement can reduce the resistance when the housing assembly is venting air.

[0042] Optionally, the housing 10 includes a volute side plate 12. When the spliced ​​volute 20 is in the blocking position, the spliced ​​volute 20 and part of the side wall of the housing 10 form part of the side wall of the air duct 11. The part of the side wall forming the air duct 11 is at least partially arc-shaped. This arrangement can reduce the resistance when the housing assembly is venting air.

[0043] In one embodiment of this application, the housing 10 includes a volute side plate 12. When the spliced ​​volute 20 is in the blocking position, the spliced ​​volute 20, the volute side plate 12 (one or more pieces), and part of the side wall of the housing 10 together form part of the side wall of the air duct 11. The part of the side wall forming the air duct 11 is at least partially arc-shaped, which increases the flow area of ​​the air duct 11 while reducing the resistance of the housing assembly when it is venting.

[0044] To address the installation difficulties caused by the overall size of the housing assembly being larger than the installation dimensions, a design was implemented whereby the splicing volute 20 is housed within the housing 10 when it is in an avoidance position.

[0045] Combination Figure 2 and Figure 3As shown, during the installation of the housing assembly, the splicing volute 20 is positioned in a clearance position and is housed within the housing 10 (e.g., Figure 3 As shown), this design saves space required for the installation of the housing assembly. During operation, the splicing volute 20 is located in the sealing position (e.g., Figure 2 As shown, the spliced ​​volute 20 and the volute side plate 12 form the side wall of the air duct 11. The side wall of the air duct 11 is at least partially arc-shaped, which maximizes the air duct 11 within the existing installation space and optimizes the air outlet performance of the housing assembly.

[0046] In one embodiment of this application, the air duct 11 further includes an air duct top plate and an air duct bottom plate. The sidewalls of the air duct 11, the air duct top plate, and the air duct bottom plate enclose a shell 10, meaning that the air duct 11 is part of the structure of the shell 10, and the air duct bottom plate is formed from the bottom of the shell 10. The profile of the sidewalls of the air duct 11 can be a volute profile, or it can be a profile structure including straight lines and curved lines.

[0047] In another embodiment of this application, the air duct 11 includes a side wall, a top plate, and a bottom plate. The air duct 11 and the housing 10 form a separate assembly component, that is, the air duct 11 is not part of the housing 10. In this case, the air duct 11 is independently formed inside the housing 10. The bottom plate of the air duct 11 is connected to the bottom of the housing 10 (they have independent bottoms). The difference between this embodiment and the above embodiment is that both the air duct 11 and the housing 10 have their own bottom plates.

[0048] Furthermore, the splicing volute 20 can be moved along the width direction of the housing 10 to a blocking position and an avoidance position.

[0049] Combination Figure 2 and Figure 3 As shown, in this embodiment, the splicing volute 20 is movably arranged along the width direction of the housing 10, which maximizes the air duct 11 within the existing installation space of the splicing volute 20 and improves the reliability of the housing assembly.

[0050] Furthermore, the housing 10 has an air outlet 111 communicating with the air duct 11. The air outlet 111 and the opening 101 are respectively disposed on the side plate of the housing 10. The splicing volute 20 has a blocking position that moves away from the housing 10 to the opening 101 to at least partially block the opening 101, and a clearance position that moves toward the housing 10 until the splicing volute 20 is completely housed in the housing 10.

[0051] Combination Figures 2 to 4As shown, in this embodiment, the housing 10 also has an air exchange port 112 communicating with the air duct 11. The protruding part of the air outlet pipe forming the air exchange port 112 is detachable. When installing the housing assembly, the protruding part of the air outlet pipe forming the air exchange port 112 is installed to the ceiling panel, and the splicing volute 20 is located in a clearance position close to the housing 10. The splicing volute 20 is housed inside the housing 10 (e.g., Figure 3 As shown), the splicing volute 20 is installed to the mounting position and then connected to the protruding part of the air outlet duct forming the ventilation port 112. This design saves space required for the installation of the housing assembly. During operation, the splicing volute 20 is located at the sealing position on the side away from the housing 10 (e.g., Figure 2 As shown, the spliced ​​volute 20 and the volute side plate 12 form the side wall of the air duct 11, which maximizes the air duct 11 within the existing installation space and improves the practicality of the housing assembly.

[0052] To improve the sealing performance of the spliced ​​volute 20 during operation, when the spliced ​​volute 20 is in the sealing position, the edge of the spliced ​​volute 20 is smoothly transitioned to the edge of the opening 101. Combined with... Figure 2 As shown, this arrangement helps the spliced ​​volute 20 and the volute side plate 12 to form the side wall of the air duct 11, improving the sealing performance of the spliced ​​volute 20 when it is in the sealing position.

[0053] To further optimize the reliability of the housing assembly during movement, the housing assembly includes a sliding component 30. The splicing volute 20 is movably connected to the housing 10 via the sliding component 30, and the splicing volute 20 is movably positioned relative to the housing 10 via the sliding component 30, allowing the splicing volute 20 to switch between a blocking position and a clearance position. This configuration enables the splicing volute 20 to move relative to the housing 10 under different operating conditions. During installation of the housing assembly, the splicing volute 20 slides to the clearance position via the sliding component 30 (e.g., ...). Figure 3 As shown), the splicing volute 20 is completely housed within the housing 10, saving the installation space required for the housing assembly; during operation, the splicing volute 20 slides to the sealing position via the sliding component 30 (as shown). Figure 2 As shown, the spliced ​​volute 20 and the volute side plate 12 form the side wall of the air duct 11. The side wall of the air duct 11 has an arc-shaped structure, which maximizes the size of the air duct 11 within the existing installation space and improves the practicality of the housing assembly.

[0054] In one exemplary embodiment of this application, the sliding assembly 30 includes a first sliding member 31 and a second sliding member 32. One of the first sliding member 31 and the second sliding member 32 is disposed on the housing 10, and the other of the first sliding member 31 and the second sliding member 32 is disposed on the splicing volute 20. This arrangement enables the splicing volute 20 to slide relative to the housing 10 to a blocking position or an avoidance position, so that the housing assembly is suitable for various occasions.

[0055] Furthermore, one of the first slider 31 and the second slider 32 is a guide rail, and the other of the first slider 31 and the second slider 32 is a slider that cooperates with the guide rail. The slider is slidably disposed along the length direction of the guide rail.

[0056] Combination Figures 1 to 3 As shown, in a preferred embodiment of this application, the air outlet 111 and the opening 101 are respectively disposed on the side plate of the housing 10. The guide rail is disposed along the width direction of the housing 10, and the slider is slidably disposed along the length direction of the guide rail. This arrangement enables the splicing volute 20 to have a blocking position where it can move away from the housing 10 to the opening 101 through the cooperation of the guide rail and the slider, so as to at least partially block the opening 101. It also enables the splicing volute 20 to have a clearance position where it can move towards the housing 10 through the cooperation of the guide rail and the slider, until the splicing volute 20 is completely housed within the housing 10. This allows the splicing volute 20 to move along the width direction of the housing 10 to both the blocking position and the clearance position, increasing the applicability of the housing assembly.

[0057] Furthermore, a guide rail is provided on the housing 10, and a slider is provided on the splicing volute 20. The length direction of the guide rail extends along the width direction of the housing 10. This arrangement enables the splicing volute 20 to reciprocate relative to the housing 10 along the width direction of the housing 10, so that the splicing volute 20 can switch between a blocking position and an avoidance position, improving the convenience of the housing assembly.

[0058] Furthermore, there are one or more guide rails, and each guide rail is provided with at least one slider.

[0059] In one embodiment of this application, there is one guide rail, and a corresponding slider is provided on the guide rail. This arrangement can achieve the switching between the blocking position and the avoidance position of the spliced ​​volute 20 on the basis of the simplest improvement, with low optimization cost and solve the problem of low air volume caused by the limited installation space of the housing component in the prior art.

[0060] In one embodiment of this application, there is one guide rail, and the guide rail is provided with multiple sliders. This arrangement can improve the stability of the splicing volute 20 when it moves, making the housing assembly more reliable when switching between the blocking position and the avoidance position.

[0061] Combination Figure 2 As shown, in this embodiment, there are two guide rails, and each guide rail is provided with a corresponding slider. The splicing volute 20 reciprocates relative to the housing 10 along the width direction of the housing 10, so that the splicing volute 20 can switch between the blocking position and the avoidance position, which improves the convenience of the housing assembly.

[0062] In one embodiment of this application, there are multiple guide rails, and each guide rail is provided with multiple sliders. This arrangement can further improve the stability of the splicing volute 20 when it moves, and increase the stability of the housing assembly.

[0063] Furthermore, the spliced ​​volute 20 includes a spliced ​​volute body 21, which extends along the length of the housing 10. A spliced ​​volute side plate 22 is respectively provided on each of the two sides of the spliced ​​volute body 21 along its length. The two spliced ​​volute side plates 22 are arranged opposite to each other, and together with the spliced ​​volute body 21, they form a volute structure with an opening on one side. The opening of the volute structure faces the interior of the housing 10. At least one spliced ​​volute side plate 22 is movably connected to the housing 10 via a sliding component 30. When the spliced ​​volute 20 is in the blocked position, the edge of the opening of the volute structure smoothly transitions to the edge of the opening 101. This arrangement helps the spliced ​​volute 20 and the volute side plates 12 to form the sidewall of the air duct 11, improving the sealing performance of the spliced ​​volute 20 when it is in the blocked position.

[0064] In one exemplary embodiment of this application, the splicing volute body 21 is an arc-shaped plate so that the splicing volute 20 and the volute side plate 12 can be arranged to form the side wall of the air duct 11, thereby expanding the air outlet area of ​​the air duct 11 and improving the practicality of the housing assembly.

[0065] In another embodiment of this utility model, a ceiling-mounted electrical appliance is also provided, including a housing assembly, which is the housing assembly described in the above embodiments. The ceiling-mounted electrical appliance includes, but is not limited to, air outlet devices such as kitchen air conditioners, non-kitchen air conditioners, bathroom heaters, and fresh air systems.

[0066] Combination Figure 5As shown, specifically, in this embodiment, a bathroom heater is provided. The bathroom heater includes a housing assembly and an impeller 40. The housing assembly includes a housing 10 and a splicing volute 20. The impeller 40 is disposed in the receiving cavity of the housing 10. The housing 10 has a volute side plate 12 for forming an air duct 11. The side plate of the housing 10 has an opening 101. The splicing volute 20 is movably connected to the housing 10 so that the splicing volute 20 has a blocking position that at least partially blocks the opening 101, and a clearance position that is away from the opening 101. When the splicing volute 20 is in the blocking position, at least part of the splicing volute 20 is located outside the housing 10, so that the splicing volute 20 and the volute side plate 12 form the sidewall of the air duct 11. In this embodiment, the splicing volute 20 and the housing 10 can be connected by sliding, rotating or magnetic connection. During operation, the splicing volute 20 is in the blocked position. The splicing volute 20 can completely seal the opening 101 or partially block the opening 101, as long as most of the airflow can be ensured to flow out along the air duct. At this time, at least part of the splicing volute 20 is located outside the housing 10. The splicing volute 20 and the volute side plate 12 form the side wall of the air duct 11. The side wall of the air duct 11 has an arc-shaped structure, which maximizes the size of the air duct 11 and improves the air outlet performance of the housing assembly.

[0067] In another embodiment of this utility model, the housing assembly is installed according to the following steps:

[0068] Step S1: Move the spliced ​​volute to the avoidance position inside the shell.

[0069] Step S2: Install the shell with the spliced ​​volute onto the installation base of the indoor mezzanine;

[0070] Step S3: Move the spliced ​​volute to the sealing position.

[0071] Through the above steps, the splicing volute is moved along the first preset direction to the avoidance position inside the housing so that the housing passes through the installation opening formed by the ceiling panel during installation. The housing with the splicing volute is installed on the installation base (ceiling panel or keel in the ceiling space) of the indoor mezzanine. The splicing volute is then moved along the second preset direction to the sealing position so that the splicing volute and the volute side plate can be arranged to form a volute enclosure, thereby forming a larger air duct. This increases the air volume while reducing the installation difficulty of the housing components.

[0072] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0073] During installation of the housing assembly, the splicing volute 20 slides to a clearance position via the sliding component 30, completely housing the splicing volute 20 within the housing 10. This allows the portion of the structure exceeding the installation space (the splicing volute 20) to be moved to the clearance position, even when the overall size of the housing assembly exceeds the installation space, thus solving the installation difficulty caused by the overall size exceeding the installation size. Specifically, during operation, the splicing volute 20 slides to a blocking position via the sliding component 30. The splicing volute 20 and part of the side wall of the housing 10 form the side wall of the air duct 11. Under the limitations of existing traditional installation space, this increases the flow area of ​​the air duct 11, improves the air volume of the housing assembly, enhances the user experience, and further improves the practicality of ceiling appliances with this housing assembly.

[0074] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0075] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0076] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0077] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A housing assembly, characterized in that, include: A housing (10) having an air duct (11) having an opening (101); A splicing volute (20) is movably connected to the housing (10) such that the splicing volute (20) has a blocking position that at least partially blocks the opening (101) and a clearance position that is away from the opening (101). When the splicing volute (20) is located at the blocking position, at least a portion of the splicing volute (20) is located outside the housing (10), and the splicing volute (20) and a portion of the sidewall of the housing (10) form the sidewall of the air duct (11).

2. The housing assembly according to claim 1, characterized in that, The housing (10) includes a volute side plate (12). When the spliced ​​volute (20) is located in the blocking position, the spliced ​​volute (20) and the volute side plate (12) and / or part of the side wall of the housing (10) form part of the side wall of the air duct (11). The part of the side wall forming the air duct (11) is at least partially arc-shaped.

3. The housing assembly according to claim 1, characterized in that, When the spliced ​​volute (20) is located in the avoidance position, the spliced ​​volute (20) is housed inside the housing (10).

4. The housing assembly according to any one of claims 1 to 3, characterized in that, The spliced ​​volute (20) can be moved along the width direction of the housing (10) to the blocking position and the avoidance position.

5. The housing assembly according to any one of claims 1 to 3, characterized in that, When the spliced ​​volute (20) is located at the blocking position, the edge of the spliced ​​volute (20) is smoothly transitioned to the edge of the opening (101).

6. The housing assembly according to claim 4, characterized in that, The housing assembly includes: The sliding assembly (30) is used to movably connect the splicing volute (20) to the housing (10), and the splicing volute (20) is movably disposed relative to the housing (10) via the sliding assembly (30) so that the splicing volute (20) can switch between the blocking position and the avoidance position.

7. The housing assembly according to claim 6, characterized in that, The sliding assembly (30) includes a first sliding member (31) and a second sliding member (32), one of the first sliding member (31) and the second sliding member (32) is disposed on the housing (10), and the other of the first sliding member (31) and the second sliding member (32) is disposed on the splicing volute (20).

8. The housing assembly according to claim 7, characterized in that, One of the first slider (31) and the second slider (32) is a guide rail, and the other of the first slider (31) and the second slider (32) is a slider that cooperates with the guide rail. The slider is slidably disposed along the length direction of the guide rail.

9. The housing assembly according to claim 8, characterized in that, The guide rail is provided on the housing (10), and the slider is provided on the splicing volute (20). The length direction of the guide rail extends along the width direction of the housing (10).

10. The housing assembly according to claim 8, characterized in that, The guide rails may be one or more, and each guide rail is provided with at least one slider.

11. The housing assembly according to any one of claims 8 to 10, characterized in that, The spliced ​​volute (20) includes: A splicing volute body (21) is provided, which extends along the length direction of the housing (10). A splicing volute side plate (22) is provided on each of the two sides along the length direction of the splicing volute body (21). The two splicing volute side plates (22) are arranged opposite to each other, and the two splicing volute side plates (22) and the splicing volute body (21) form a volute structure with an opening on one side. The opening of the volute structure faces the interior of the housing (10). At least one splicing volute side plate (22) is movably connected to the housing (10) through the sliding component (30). When the spliced ​​volute (20) is located in the blocking position, the opening edge of the volute structure is smoothly transitioned to the edge of the opening (101).

12. The housing assembly according to claim 11, characterized in that, The spliced ​​volute body (21) is an arc-shaped plate.

13. A ceiling-mounted electrical appliance, comprising a housing assembly, characterized in that, The housing assembly is the housing assembly according to any one of claims 1 to 12.

Images