Shell assembly and ceiling electric appliance with same

Abstract

The utility model provides a shell assembly and a ceiling electric appliance with the same, and relates to the technical field of electric appliances. The shell assembly comprises a shell provided with an air duct, and the air duct is provided with an opening; the spliced volute is detachably connected with the shell, the spliced volute is provided with a plugging position connected with the shell, and the spliced volute is provided with a separation position separated from the shell; when the spliced volute is located at the blocking position, at least part of the spliced volute is located outside the shell, and part of the side wall of the air duct is defined by the spliced volute and part of the side wall of the shell. According to the technical scheme, the splicing volute and the shell are arranged to be detachably connected, the protruding part of the splicing volute and part of the side wall of the shell jointly define the air channel, the capacity of the air channel is increased, and therefore the air volume of the shell assembly is increased, and the air outlet volume and the performance of the shell assembly are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and more specifically, to a housing assembly and a ceiling 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 2024217966403, entitled "Housing Assembly and Ceiling Appliance Having the Same". Background Technology

[0002] Common ceiling electrical appliances include air conditioners, bathroom heaters, and fresh air systems. Ceiling electrical appliances are usually composed of a housing, air duct components (such as a volute) and fan components (such as a fan) inside the housing. The performance of ceiling electrical appliances is mainly affected by the size and volume of the fan components and air duct components inside the housing.

[0003] For example, a bathroom heater is a common indoor heating device. Its main function is to raise the temperature of the bathroom by electrically heating the air. A bathroom heater typically consists of a housing, a fan, and a volute. The performance of the bathroom heater is mainly affected by the size of the fan and the volute inside the housing. In traditional bathroom heater designs, the size of the housing is limited by the size of the ceiling panels and the width of the joists, which means that the size of the bathroom heater in current technology is already at its maximum. If the housing size is further increased to improve the airflow, the bathroom heater housing will be too large to be installed in the ceiling.

[0004] Due to the problems existing in the current technology, the air volume of the bathroom heater has always been at a low level, which cannot meet the needs of the usage environment that requires a large air volume, making the practicality of the bathroom heater in the current technology not high.

[0005] There is currently no effective solution to the aforementioned technical problems. Utility Model Content

[0006] The main objective of this invention is to provide a housing assembly and a ceiling appliance having the same, in order to solve the problems of insufficient airflow and low practicality of electrical appliances in the prior art.

[0007] 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; a splicing volute detachably connected to the housing, the splicing volute having a sealing position connected to the housing, and a separating position detached from the housing; when the splicing volute is in the sealing 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 form a partial sidewall of the air duct.

[0008] Furthermore, the splicing volute and the outer shell are detachably connected by magnetic attraction.

[0009] Furthermore, the housing assembly also includes at least one set of magnetic assemblies, each set of magnetic assemblies including a first magnetic element disposed on the housing and a second magnetic element disposed on the splicing volute.

[0010] Furthermore, the first magnetic element is positioned close to the opening.

[0011] Furthermore, there are multiple first magnetic attractors, which are respectively disposed on both sides of the opening along the length of the shell.

[0012] Furthermore, there are multiple first magnetic suction components, which are respectively disposed on both sides of the opening along the height direction of the shell.

[0013] Furthermore, the splicing volute includes: a splicing volute body, which extends along the length of the shell, and a splicing volute side plate is provided on each of the two sides of the splicing volute body in the width direction.

[0014] Furthermore, the two spliced ​​volute side plates are arranged opposite each other.

[0015] Furthermore, the two spliced ​​volute side plates and the spliced ​​volute main body are arranged to form a volute structure with an opening on one side, and the opening of the volute structure is set facing the inside of the shell.

[0016] Furthermore, the opening edge of the volute structure is provided with a first flange structure, and a second magnetic attraction element is provided on the first flange structure.

[0017] Furthermore, the edge of the opening is provided with a mating groove recessed towards the inside of the housing, and a first magnetic attracting element is provided in the mating groove.

[0018] Furthermore, a first mounting portion is provided on the groove, the first mounting portion is used to mount the first magnetic component, the first mounting portion includes a first mounting groove, and / or, the first mounting portion includes a first mounting hole.

[0019] Furthermore, a second mounting portion is provided on the first flange structure. The second mounting portion is used to mount the second magnetic component. The second mounting portion includes a second mounting groove and / or a second mounting hole.

[0020] Furthermore, when the spliced ​​volute is in the sealing position, the thickness of the first flange structure is set to be the same as the groove depth of the mating groove.

[0021] Furthermore, the spliced ​​volute also includes: a second flange structure, of which there are two. Along the length direction of the spliced ​​volute, a second flange structure is provided on each side of the first flange structure. The second flange structure protrudes along the width direction of the shell, and the two second flange structures extend in opposite directions. When the spliced ​​volute is in the blocking position, one of the second flange structures is located on the bottom outer side of the shell, and the other second flange structure protrudes in the direction away from the opening.

[0022] Furthermore, the first magnetic attractor is a magnet, and the second magnetic attractor is a strongly ferromagnetic metal sheet.

[0023] Furthermore, the shell includes a duct side plate. When the spliced ​​volute is in the blocking position, the spliced ​​volute and the duct side plate and / or part of the shell side wall form part of the duct side wall, and the part of the duct side wall has an arc-shaped structure.

[0024] According to another aspect of the present invention, a ceiling electrical appliance is provided, including a housing assembly, wherein the housing assembly is the housing assembly described above.

[0025] By applying the technical solution of this utility model, the splicing volute has a sealing position connected to the shell and a separation position separated from the shell. When the splicing volute is in the separation position, the longitudinal space of the shell assembly is not affected, allowing the shell assembly to be easily installed to the ceiling position through a relatively narrow installation opening. When the splicing volute is in the sealing position, the splicing volute seals the opening and connects to the shell, avoiding performance degradation caused by air leakage from the shell. At the same time, the splicing volute and the duct side plate form part of the side wall of the duct, and the protruding part of the splicing volute and part of the shell side wall together form another part of the side wall of the duct, increasing the capacity of the duct and thus improving the air volume of the shell assembly. When applied to electrical structures, it can effectively improve the air output of the electrical appliance, adapt to the usage environment with large air volume requirements, improve the practicality of the electrical appliance, and solve the problems of insufficient air output and low practicality of electrical appliances in the prior art. Attached Figure Description

[0026] 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:

[0027] Figure 1 A schematic diagram of the structure of a first embodiment of the housing assembly according to the present invention is shown;

[0028] Figure 2 A schematic diagram of the structure of a second embodiment of the housing assembly according to the present invention is shown;

[0029] Figure 3A structural schematic diagram of an embodiment of the spliced ​​volute according to the present invention is shown;

[0030] Figure 4 A structural schematic diagram of a third embodiment of the housing assembly according to the present invention is shown.

[0031] The above figures include the following reference numerals:

[0032] 10. Housing; 101. Opening; 102. Fitting groove; 103. Air outlet; 11. Air duct; 111. Ventilation opening; 112. Air inlet channel; 113. Air supply duct; 12. Air duct side panel;

[0033] 20. Assemble the volute casing; 21. Assemble the main body of the volute casing; 22. Assemble the side plates of the volute casing; 23. First flange structure; 24. Second flange structure;

[0034] 30. Magnetic suction assembly; 31. First magnetic suction element; 32. Second magnetic suction element;

[0035] 40. Wind blades. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Combination Figures 1 to 4 As shown, according to a specific embodiment of this application, a housing assembly is provided.

[0041] Specifically, such as Figure 1 , Figure 2 As shown, the housing assembly includes a housing 10 and a splicing volute 20. The housing 10 has an air duct 11 with an opening 101. The splicing volute 20 is detachably connected to the housing 10. The splicing volute 20 has a blocking position connected to the housing 10 and a separating position separated from the housing 10. 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 a portion of the sidewall of the air duct 11.

[0042] Applying the technical solution of this embodiment, the splicing volute 20 has a sealing position connected to the housing 10 and a separation position separated from the housing 10. When the splicing volute 20 is in the separation position, the longitudinal space of the housing assembly is not affected, which facilitates the housing assembly to be smoothly installed to the ceiling position through a relatively narrow installation opening. When the splicing volute 20 is in the sealing position, the splicing volute 20 seals the opening 101 and connects with the housing 10, avoiding the performance degradation caused by air leakage from the housing. At the same time, the splicing volute 20 and the air duct side plate 12 form part of the side wall of the air duct 11. The protruding part of the splicing volute 20 and part of the side wall of the housing 10 together form another part of the side wall of the air duct 11, increasing the capacity of the air duct 11, thereby increasing the air volume of the housing assembly. When applied to electrical structures, it can effectively increase the air volume of electrical appliances, adapt to the use environment with large air volume requirements, improve the practicality of electrical appliances, and solve the problems of insufficient air volume and low practicality of electrical appliances in the prior art.

[0043] It should be noted that in this embodiment, the splicing volute 20 and the housing 10 are detachably connected. This allows the splicing volute 20 to be separated from the housing 10 during the installation of the housing assembly. Then, the splicing volute 20 and the housing 10 are connected again through the installation ports to achieve sealing. The detachable connection also facilitates the individual maintenance and replacement of the splicing volute 20 and the housing 10 in the future.

[0044] In one embodiment of this application, the air duct 11 includes an air inlet channel 112 and an air supply channel 113. The air supply channel 113 is connected to the air outlet 103. The fan blade 40 is disposed in the air inlet channel 112 and is connected to the air outlet 103 through the air supply channel 113. The side wall profile of the air inlet channel 112 can be a complete volute profile structure, or it can be an air duct structure formed by multiple arc-shaped side plates or straight plates and the inner side wall of the housing 10. That is, the profile of the air inlet channel 112 can be composed of multiple straight lines and multiple arcs.

[0045] In another embodiment of this application, the air duct 11 includes an air duct side plate 12, an air duct top plate, and an air duct bottom plate. The air duct 11 and the housing 10 form an integral assembly component, that is, the air duct 11 is part of the housing 10, and the bottom of the housing 10 forms the air duct bottom plate. Of course, the air duct 11 can also be independently formed inside the housing 10. In this case, the air duct bottom plate of the air duct 11 is connected to the bottom of the housing 10. 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.

[0046] Specifically, the volute 20 and the housing 10 are detachably connected by magnetic attraction. This magnetic assembly method optimizes and improves the performance of the housing components while making the installation and maintenance of the volute 20 more convenient.

[0047] Furthermore, such as Figure 2 , Figure 3 As shown, the housing assembly also includes at least one set of magnetic assemblies 30. Each set of magnetic assemblies 30 includes a first magnetic element 31 disposed on the housing 10 and a second magnetic element 32 disposed on the splicing volute 20. When the first magnetic element 31 and the second magnetic element 32 are engaged, the splicing volute 20 is in a sealed position. The splicing volute 20 can be installed and disassembled through the magnetic assemblies 30. When the housing assembly is working, it is only necessary to bring the first magnetic element 31 and the second magnetic element 32 close together and align them, so that the splicing volute 20 can be connected to the housing 10 by the magnetic attraction force of the magnetic assemblies 30. When disassembling the splicing volute 20, it is only necessary to apply external force to move the splicing volute 20 to separate it from the housing 10. The operation is convenient and quick.

[0048] Preferably, the first magnetic suction element 31 is positioned close to the opening 101. This improves the sealing performance of the splicing volute 20 on the opening 101, further reducing the impact of air leakage.

[0049] It should be noted that multiple sets of magnetic suction components 30 can be provided. The setting of multiple sets of magnetic suction components 30 can improve the reliability and stability of the connection between the splicing volute 20 and the housing 10. Preferably, 2 to 4 sets of magnetic suction components 30 are provided. All sets of magnetic suction components 30 are set close to the opening 101. When the first magnetic suction component 31 and the second magnetic suction component 32 are attracted, the magnetic attraction force near the opening 101 is greater. That is, the connection between the splicing volute 20 and the housing 10 at the opening 101 is well sealed, which avoids air leakage at the connection between the splicing volute 20 and the housing 10 when the housing assembly is working, thereby avoiding air leakage in the air duct 11, generating noise and reducing performance.

[0050] Specifically, there are multiple first magnetic suction components 31, which are respectively disposed on both sides of the opening 101 along the length of the housing 10. The specifications and dimensions of the first magnetic suction components 31 can be adjusted according to the length, height, and other dimensions of the opening 101 to avoid problems such as unstable connection between the splicing volute 20 and the housing 10 and significant air leakage due to insufficient magnetic attraction generated by the magnetic suction components. This is applicable to cases where the length of the housing 10 is large, reducing the impact of air leakage on both sides of the opening 101 along its length.

[0051] Optionally, there are multiple first magnetic suction elements 31, which are respectively disposed on both sides of the opening 101 along the height direction of the housing 10. When the height dimension of the housing 10 is large, the first magnetic suction elements 31 are disposed on both sides of the opening 101 along the height direction of the housing 10, which can effectively reduce the air leakage effect on both sides of the opening 101 in the height direction.

[0052] In one embodiment of this application, such as Figure 2 and Figure 3 As shown, the housing assembly includes two sets of magnetic assemblies 30. Along the length of the housing assembly, two first magnetic assemblies 31 are respectively disposed on both sides of the opening 101, and two second magnetic assemblies 32 are respectively disposed corresponding to the first magnetic assemblies 31. The connection between the volute 20 and the housing 10 can be achieved by using two sets of magnetic assemblies 30, and the external force required for disassembly is small, making the operation more convenient.

[0053] In another embodiment of this application (not shown in the figure), the housing assembly includes two sets of magnetic assemblies 30. Along the height direction of the housing assembly, two first magnetic assemblies 31 are respectively disposed on both sides of the opening 101 of the housing 10, and two second magnetic assemblies 32 are respectively disposed corresponding to the first magnetic assemblies 31.

[0054] In one exemplary embodiment of this application, the housing 10 has a vent 111 communicating with the air duct 11. The vent 111 and the opening 101 are respectively disposed on opposite side plates of the housing 10. This arrangement, with the vent 111 and the opening 101 located on different side plates, avoids air leakage from the splicing volute 20 in a clearance position from interfering with the air permeability of the vent 111, thus preventing installation inconvenience. At the same time, with the opening 101 and the vent 111 located on different side plates, the size of the opening 101 and the vent 111 can be designed more flexibly, and the splicing volute 20 at the opening 101 has greater room for movement and range of motion.

[0055] Furthermore, such as Figure 3 As shown, 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 in the width direction. The spliced ​​volute side plate 22 and the spliced ​​volute body 21 can form a flow space for airflow, allowing the airflow to change direction within the flow space, thereby guiding the airflow direction. Simultaneously, the flow space can also accommodate a certain amount of airflow, expanding the flow area of ​​the air duct 11 within the housing 10.

[0056] Preferably, the two spliced ​​volute side plates 22 are arranged opposite to each other. This arrangement can guide and block the relative direction of airflow entering the spliced ​​volute 20, preventing air leakage, and at the same time, making the airflow more uniform.

[0057] Furthermore, the two spliced ​​volute side plates 22 and the spliced ​​volute body 21 are configured to form a volute structure with an opening on one side, the opening of which faces inward toward the inside of the housing 10. This configuration connects the volute structure to the air duct 11 of the housing 10 through the opening, thereby increasing the cross-sectional area for gas flow in the air duct 11, improving gas flow rate, enhancing the air delivery performance of the housing assembly, and meeting users' demands for higher air volume performance.

[0058] Furthermore, a first flange structure 23 is provided at the opening edge of the volute structure, and a second magnetic suction member 32 is provided on the first flange structure 23. With the first flange structure 23 at the opening edge of the volute structure, when the spliced ​​volute 20 is in the blocked position, the first flange structure 23 covers and adheres tightly to a portion of the shell 10 (i.e., the portion of the shell 10 near the opening 101), which can improve the stability of the connection between the spliced ​​volute 20 and the shell 10. Simultaneously, the second magnetic suction member 32 is provided on the first flange structure 23, which together covers the portion where the second magnetic suction member 32 connects to the first magnetic suction member 31, thus protecting the magnetic suction assembly 30 and preventing demagnetization during use.

[0059] It should be noted that multiple first flange structures 23 can be provided on the opening edge of the volute structure to improve the airtightness of the spliced ​​volute 20 during installation, and each first flange structure 23 can be provided with a second magnetic suction element 32. Sealing structures such as rubber gaskets and sealing rings can also be added to the opening edge of the volute structure.

[0060] Specifically, such as Figure 2 As shown, the edge of the opening 101 is provided with a mating groove 102 recessed towards the inside of the housing 10. A first magnetic suction element 31 is provided in the mating groove 102. When the splicing volute 20 is in the sealing position, the first flange structure 23 extends into the mating groove 102. The mating groove 102 enables rapid positioning of the installation position of the splicing volute 20, improving the installation speed of the splicing volute 20. At the same time, the extension of the first flange structure 23 into the mating groove 102 can reduce the volume of the housing assembly. The groove wall of the mating groove 102 can support the splicing volute 20, improving the connection stability and load-bearing capacity between the splicing volute 20 and the housing 10.

[0061] Furthermore, a first mounting portion is provided on the mating groove 102 for mounting the first magnetic member 31. The first mounting portion includes a first mounting groove and / or a first mounting hole. Mounting the first magnetic member 31 in the groove structure or hole structure can reduce the overall volume of the component. For example, by providing a first mounting groove on the mating groove 102 to mount the first magnetic member 31, the surface of the mating groove 102 can be kept flush.

[0062] The first flange structure 23 has a second mounting portion for mounting the second magnetic member 32. The second mounting portion includes a second mounting groove and / or a second mounting hole. Mounting the second magnetic member 32 in the groove structure or the hole structure can reduce the overall volume of the component. For example, by creating a second mounting groove on the first flange structure 23 to mount the second magnetic member 32, the surface of the first flange structure 23 can be kept flush.

[0063] Specifically, the shapes of the first mounting portion and the second mounting portion can be selected according to the size and shape of the first magnetic member 31 and the second magnetic member 32. For example, when the first magnetic member 31 and the second magnetic member 32 are circular, arc-shaped, strip-shaped, or irregular in shape, the shapes of the first mounting portion and the second mounting portion are preferably matching shapes. In one embodiment of this application, the first magnetic member 31 and the second magnetic member 32 are both strip-shaped magnetic members, the first mounting portion is a first mounting groove adapted to the strip-shaped magnetic member, and the second mounting portion is a second mounting groove adapted to the strip-shaped magnetic member.

[0064] Specifically, when the spliced ​​volute 20 is in the sealing position, the thickness of the first flange structure 23 is set to be the same as the groove depth of the mating groove 102. This arrangement allows the first magnetic member 31 and the second magnetic member 32 to attract and adhere tightly to each other. It ensures that after the mating groove 102 and the first flange structure 23 are nested and compacted together, the sides of the mating groove 102 and the first flange structure 23 abut against each other and are flush. This avoids gaps that may occur when the two are connected, affecting the magnetic assembly 30, improving its durability and ensuring the overall appearance.

[0065] Furthermore, such as Figure 3 As shown, the spliced ​​volute 20 also includes two second flange structures 24. One second flange structure 24 is provided on each side of the first flange structure 23 along the length direction of the spliced ​​volute 20. The second flange structures 24 protrude along the width direction of the housing 10, and the two second flange structures 24 extend in opposite directions. When the spliced ​​volute 20 is in the blocked position, one of the second flange structures 24 is located on the outer bottom of the housing 10, and the other second flange structure 24 protrudes away from the opening 101. By providing two second flange structures 24 in a direction perpendicular to the first flange structure 23, when the spliced ​​volute 20 is in the blocked position, the second flange structures 24 cover the part of the spliced ​​volute 20 that is in close contact with the housing 10, which can improve the stability of the connection between the spliced ​​volute 20 and the housing 10.

[0066] In this embodiment, two second flange structures 24 extend in opposite directions. One of the second flange structures 24 is located on the bottom outer side of the housing 10. This second flange structure 24 can fit tightly with the housing 10, making the connection between the splicing volute 20 and the housing 10 more secure. The other second flange structure 24 protrudes in a direction away from the opening 101. That is, the second flange structure 24 located on the top outer side of the housing 10 protrudes outward. This second flange structure 24 can form a protrusion to facilitate the disassembly and installation of the splicing volute 20.

[0067] Preferably, the first magnetic element 31 is a magnet, and the second magnetic element 32 is a strongly ferromagnetic metal sheet. This arrangement ensures a strong magnetic attraction between the first magnetic element 31 and the second magnetic element 32, allowing them to be tightly attracted to each other. The fact that the second magnetic element 32 is not a magnet avoids unnecessary cleaning work caused by it being placed in different positions to attract other metal parts after the assembly housing 20 is disassembled.

[0068] Furthermore, the housing 10 includes a duct side plate 12. When the spliced ​​volute 20 is in the blocking position, the spliced ​​volute 20, the duct side plate 12, and / or part of the side wall of the housing 10 form a partial side wall of the duct 11, and at least a portion of the partial side wall of the duct 11 is an arc-shaped structure. Figure 1 , Figure 4 As shown, part of the sidewalls surrounding the air duct 11 is an arc-shaped structure, while the other part of the sidewalls surrounding the air duct 11 is a straight plate structure. When expanding the capacity of the air duct 11, the expansion trend is slower with the arc-shaped structure and faster with the straight plate structure. Therefore, the arc-shaped structure and the straight plate structure can be alternately set to control the air duct capacity and thus control the maximum air volume, thereby improving the performance of the housing components.

[0069] According to another specific embodiment of this application, 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.

[0070] In one embodiment of this application, the ceiling electrical appliance has a housing 10 and a splicing volute 20 as described in the previous embodiment. The housing 10 is the outer casing of the main unit of the ceiling electrical appliance, and the air duct side plate 12 is formed on the housing 10. The air duct 11 and the housing 10 are two independently disposed components. Alternatively, the volute side plate can be configured as a plate-like structure, with the volute side plate, the side wall of the housing, and the bottom plate forming an air duct. An air collecting plate is disposed on the side of the housing 10 opposite to the bottom, and a panel is disposed on the outer side of the air collecting plate. The lamp assembly is disposed on the side where the air collecting plate and the panel are located.

[0071] As can be seen from the above description, the above embodiments of this utility model, through optimized design, enable the ceiling electrical appliances to improve performance while ensuring their overall appearance and ease of installation. The magnetic assembly method also makes the installation and maintenance of the ceiling electrical appliances more convenient.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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 detachably connected to the housing (10), the splicing volute (20) has a sealing position connected to the housing (10), and the splicing volute (20) has a separation position separated from the housing (10); When the spliced ​​volute (20) is in the blocked position, at least a portion of the spliced ​​volute (20) is located outside the housing (10), and the spliced ​​volute (20) and a portion of the sidewall of the housing (10) form a partial sidewall of the air duct (11).

2. The housing assembly according to claim 1, characterized in that, The spliced ​​volute (20) and the housing (10) are detachably connected by magnetic attraction.

3. The housing assembly according to claim 2, characterized in that, The housing assembly further includes at least one set of magnetic assemblies (30), each set of magnetic assemblies (30) including a first magnetic member (31) disposed on the housing (10) and a second magnetic member (32) disposed on the spliced ​​volute (20).

4. The housing assembly according to claim 3, characterized in that, The first magnetic attractor (31) is positioned near the opening (101).

5. The housing assembly according to claim 3, characterized in that, There are multiple first magnetic suction elements (31), and along the length direction of the housing (10), multiple first magnetic suction elements (31) are respectively disposed on both sides of the opening (101).

6. The housing assembly according to claim 5, characterized in that, There are multiple first magnetic suction elements (31), and along the height direction of the housing (10), multiple first magnetic suction elements (31) are respectively disposed on both sides of the opening (101).

7. The housing assembly according to claim 3, characterized in that, The spliced ​​volute (20) includes: The splicing volute body (21) extends along the length direction of the shell (10), and a splicing volute side plate (22) is provided on each of the two sides in the width direction of the splicing volute body (21).

8. The housing assembly according to claim 7, characterized in that, The two spliced ​​volute side plates (22) are arranged opposite to each other.

9. The housing assembly according to claim 8, characterized in that, The two spliced ​​volute side plates (22) and the spliced ​​volute body (21) are arranged to form a volute structure with an opening on one side, and the opening of the volute structure is set towards the inside of the shell (10).

10. The housing assembly according to claim 9, characterized in that, The opening edge of the volute structure is provided with a first flange structure (23), and the first flange structure (23) is provided with a second magnetic suction member (32).

11. The housing assembly according to claim 10, characterized in that, The edge of the opening (101) is provided with a mating groove (102) recessed toward the inside of the housing (10), and the first magnetic attractor (31) is provided in the mating groove (102).

12. The housing assembly according to claim 11, characterized in that, The mating groove (102) has a first mounting portion, which is used to mount the first magnetic suction member (31). The first mounting portion includes a first mounting groove and / or a first mounting hole.

13. The housing assembly according to claim 11 or 12, characterized in that, The first flange structure (23) has a second mounting part, which is used to mount the second magnetic suction member (32). The second mounting part includes a second mounting groove and / or a second mounting hole.

14. The housing assembly according to claim 13, characterized in that, When the spliced ​​volute (20) is located at the sealing position, the thickness of the first flange structure (23) is set to be the same as the groove depth of the mating groove (102).

15. The housing assembly according to claim 13, characterized in that, The spliced ​​volute (20) also includes: The second flange structure (24) consists of two parts. Along the length direction of the spliced ​​volute (20), a second flange structure (24) is provided on each side of the first flange structure (23). The second flange structure (24) protrudes along the width direction of the shell (10), and the two second flange structures (24) extend in opposite directions. When the spliced ​​volute (20) is in the blocking position, one of the second flange structures (24) is located on the bottom outer side of the housing (10), and the other second flange structure (24) is protruding in a direction away from the opening (101).

16. The housing assembly according to any one of claims 3-6, characterized in that, The first magnetic attractor (31) is a magnet, and the second magnetic attractor (32) is a strong ferromagnetic metal sheet.

17. The housing assembly according to claim 1, characterized in that, The housing (10) includes a duct side plate (12). When the splicing volute (20) is located in the blocking position, the splicing volute (20) and the duct side plate (12) and / or part of the side wall of the housing (10) surround a portion of the side wall of the duct (11), and the portion of the side wall surrounding the duct (11) is an arc-shaped structure.

18. 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 17.

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