Volute assembly and ceiling electric appliance with same

Abstract

The utility model provides a volute assembly and a ceiling electric appliance with the volute assembly, and relates to the technical field of electric appliances. The volute assembly includes: a volute body having an open side; and the spliced volute has a folded state and an unfolded state, and when the spliced volute is in the unfolded state, the spliced volute blocks part of the opening side. According to the technical scheme, when the spliced volute is in the folded state, the radial size of the volute body is not affected, the volute assembly can keep the small radial size so that the volute assembly can be placed in a small space, and when the spliced volute is in the unfolded state, the spliced volute can play a role in increasing the overall space of the volute assembly; when the volute is applied to an electric appliance structure, the arrangement of the spliced volute can effectively improve the air outlet amount of the electric appliance, the use environment with high requirements for the air volume is adapted, and the practicability of the electric appliance is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and more specifically, to a volute assembly and a 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, duct components and fan components installed inside the housing. The performance of ceiling electrical appliances is mainly affected by the size and volume of the fan components and 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 heater. The airflow and other performance characteristics of a bathroom heater are mainly affected by the size of the fan inside the housing and the size of the volute housing the fan. During the installation of ceiling-mounted electrical appliances, the limited size of the installation opening restricts the size of the appliance's casing, significantly limiting its airflow performance. Increasing the size of the volute to improve airflow performance can easily lead to an increase in the overall size of the casing, causing the appliance to be unable to pass through the installation opening smoothly.

[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 requirements 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 volute assembly and a ceiling appliance having the same, in order to solve the problem of limited airflow inside the volute due to the limited size of the volute in the prior art.

[0007] To achieve the above objectives, according to one aspect of the present invention, a volute assembly is provided, comprising: a volute body having an open side; and a spliced ​​volute having a folded state and an unfolded state, wherein when the spliced ​​volute is in the unfolded state, the spliced ​​volute partially blocks the open side.

[0008] Furthermore, when the splicing volute is in a folded state, the splicing volute is positioned away from the opening side to avoid the opening side.

[0009] Furthermore, the spliced ​​volute includes multiple splicing bodies, which are movably set.

[0010] Furthermore, when the spliced ​​volute is in a folded state, multiple spliced ​​bodies have overlapping portions.

[0011] Furthermore, the splice body has a folded position and an unfolded position. When all splice bodies are in the folded position, the splicing volute is in a folded state. When at least one splice body is in the unfolded position, the splicing volute is in an unfolded state.

[0012] Furthermore, at least one splice is rotatably connected to the main body of the volute.

[0013] Furthermore, the splicing body includes a splicing main body, and when the splicing volute is in the unfolded state, the splicing main body and the volute main body form a volute structure.

[0014] Furthermore, the splicing body extends along the circumferential direction of the volute body.

[0015] Furthermore, the assembly also includes a connector, one end of which is connected to the main assembly body, and the other end of which is rotatably connected to the volute body.

[0016] Furthermore, the connector extends radially along the volute body.

[0017] Furthermore, connectors are provided at both ends of the main assembly.

[0018] Furthermore, the end of the connector furthest from the connected body has a hollow structure.

[0019] Furthermore, the rotation centers of each splice are set in the same way, or at least two splices have different rotation centers.

[0020] Furthermore, when the spliced ​​volute is in the unfolded state, at least two adjacent spliced ​​bodies are provided with a gap between them.

[0021] Furthermore, the splice body is slidably connected to the main body of the volute, and the splice body can slide to the folded position and the unfolded position.

[0022] According to another aspect of the present invention, a ceiling electrical appliance is provided, the ceiling electrical appliance having a volute assembly, the volute assembly being the aforementioned volute assembly.

[0023] Furthermore, the ceiling electrical appliance also includes: a housing, in which at least a portion of a volute assembly is provided, wherein when the spliced ​​volute is in the unfolded state, at least a portion of the spliced ​​volute protrudes outward from the housing along the radial direction of the volute body.

[0024] Furthermore, the main body of the volute is disposed inside the shell, and the shell has a shell opening. When the spliced ​​volute is in the folded state, the spliced ​​volute is located inside the shell to avoid the shell opening. When the spliced ​​volute is in the unfolded state, the spliced ​​volute protrudes from the shell through the shell opening.

[0025] Furthermore, an air supply duct is provided inside the shell. When the spliced ​​volute is in the unfolded state, the side of the spliced ​​volute away from the opening is connected to the air supply duct.

[0026] Furthermore, the ceiling electrical appliance also includes an air collecting plate, which has an air outlet connected to the air supply duct. At least one of the housing, the volute body, and the air collecting plate is provided with a rotating shaft, and the splicing volute is rotatably connected to the rotating shaft.

[0027] By applying the technical solution of this utility model, when the spliced ​​volute is in the folded state, the radial dimension of the volute body is not affected, and the volute assembly can maintain a small radial dimension to fit into a small space. When the spliced ​​volute is in the unfolded state, it can seal part of the opening side. The spliced ​​volute in the unfolded state and the volute body together form a complete volute structure. At this time, the spliced ​​volute can increase the overall space of the volute assembly, thereby expanding the volute space. When applied to electrical structures, the spliced ​​volute can effectively increase the air volume 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 volume and low practicality of electrical appliances in the prior art. At the same time, since the spliced ​​volute can switch between the folded and unfolded states, it is beneficial to realize the assembly of the volute assembly and solve the problem that the volute assembly cannot pass smoothly due to the limited size of the installation opening during the installation of electrical appliances. Attached Figure Description

[0028] 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:

[0029] Figure 1 A schematic diagram of the structure of a first embodiment of the volute assembly according to the present invention is shown;

[0030] Figure 2 A schematic diagram of the structure of a second embodiment of the volute assembly according to the present invention is shown;

[0031] Figure 3 A schematic diagram of the structure of a third embodiment of the volute assembly according to the present invention is shown;

[0032] Figure 4 A schematic diagram of the structure of a fourth embodiment of the volute assembly according to the present invention is shown;

[0033] Figure 5 A schematic diagram of the fifth embodiment of the volute assembly according to the present invention is shown;

[0034] Figure 6A schematic diagram of the structure of a sixth embodiment of the volute assembly according to the present invention is shown;

[0035] Figure 7 A structural schematic diagram of a seventh embodiment of the volute assembly according to the present invention is shown;

[0036] Figure 8 A schematic diagram of the structure of the eighth embodiment of the volute assembly according to the present invention is shown;

[0037] Figure 9 A structural schematic diagram of a ninth embodiment of the volute assembly according to the present invention is shown;

[0038] Figure 10 A structural schematic diagram of a tenth embodiment of the volute assembly according to the present invention is shown;

[0039] Figure 11 A structural schematic diagram of an embodiment of the spliced ​​volute according to the present invention is shown.

[0040] The above figures include the following reference numerals:

[0041] 10. Main body of the volute; 100. Opening side; 102. Volute casing circumference; 103. Volute tongue;

[0042] 20. Spliced ​​volute; 21. Spliced ​​body; 210. Rotating shaft; 211. Spliced ​​main body; 212. Connecting component;

[0043] 1. Housing; 101. Housing opening; 11. Air supply duct; 12. Duct side panel;

[0044] 3. Air collection plate; 30. Air outlet. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Combination Figures 1 to 11 As shown, according to a specific embodiment of this application, a volute assembly is provided.

[0050] Specifically, such as Figure 1 As shown, the volute assembly includes a volute body 10 and a spliced ​​volute 20. The volute body 10 has an open side 100. The spliced ​​volute 20 has a folded state and an unfolded state. When the spliced ​​volute 20 is in the unfolded state, it partially blocks the open side 100.

[0051] Applying the technical solution of this embodiment, when the splicing volute 20 is in the folded state, the radial dimension of the volute body 10 is not affected, and the volute assembly can maintain a small radial dimension to fit into a small space. When the splicing volute 20 is in the unfolded state, it can block part of the opening side 100. The splicing volute 20 in the unfolded state and the volute body 10 together form a complete volute structure. At this time, the splicing volute 20 can increase the overall space size of the volute assembly, thereby expanding the volute space. When applied to electrical structures, the splicing volute 20 can effectively increase the air volume 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 volume and low practicality of electrical appliances in the prior art. At the same time, since the splicing volute 20 can switch between the folded and unfolded states, it is beneficial to realize the assembly of the volute assembly and solve the problem that the volute assembly cannot pass smoothly due to the limited size of the installation opening during the installation of electrical appliances.

[0052] It should be noted that, as Figure 1 As shown, the volute body 10 has a volute enclosure 102, one end of which is provided with a volute tongue 103, and the other end of the volute enclosure 102 forms an opening side 100 with the volute tongue 103. When the spliced ​​volute 20 is in the unfolded state, the spliced ​​volute 20 blocks at least part of the opening side 100. The spliced ​​volute 20 in the unfolded state and the volute body 10 together form a complete volute structure. The end of the spliced ​​volute 20 near the volute body 10 and the volute tongue 103 of the volute body 10 form the air outlet of the volute structure. The spliced ​​volute 20 is configured to protrude outward along the radial direction of the volute body 10, which can increase the radial dimension of the volute assembly, thereby allowing the fan assembly located inside the volute to have a larger radial dimension, thus improving the air outlet performance of the fan assembly. At the same time, due to the expansion of the spliced ​​volute 20, the flow area of ​​the electrical duct increases, which can increase the air volume and improve the air outlet performance of the electrical appliance. Furthermore, the splicing volute 20 uses a folding method for position switching, which can further reduce the space occupied when in the folded state and achieve a compact structure.

[0053] Those skilled in the art should understand that the terms "unfolded state" and "folded state" describe changes in the shape and extended area of ​​the splicing volute 20 itself. The splicing volute 20 in the folded state has a smaller area, while the splicing volute 20 in the unfolded state has a larger area. Specifically, the splicing volute 20 can switch between the unfolded and folded states using a fan-like storage and unfolding mechanism. Alternatively, the splicing volute 20 can switch between the unfolded and folded states using an elastic structural deformation mechanism. Because of the changes in the size and shape of the splicing volute 20 in the unfolded and folded states, the splicing volute 20 can be switched according to the needs of actual applications.

[0054] Preferably, when the splicing volute 20 is in the folded state, it is positioned away from the opening side 100 to avoid obstructing the opening side 100. This ensures that during the installation phase, the splicing volute 20 does not interfere with installation activities near the opening side 100, facilitating the installation of the fan by personnel through the opening side 100.

[0055] Specifically, such as Figure 1 , Figure 6 , Figure 11 As shown, the spliced ​​volute 20 includes multiple splicing bodies 21, which are movably arranged. This arrangement allows for easy adjustment of the position of the splicing bodies 21 according to actual needs, resulting in higher precision in the final structural profile of the spliced ​​volute 20 and more stable gas pressure at the spliced ​​volute 20, effectively reducing airflow noise.

[0056] Furthermore, such as Figures 1 to 10 As shown, when the splicing volute 20 is in the folded state, the multiple splicing bodies 21 have overlapping portions. This arrangement allows the splicing volute 20 to occupy less space when it is in the folded state.

[0057] Specifically, the splicing body 21 has a folded position and an unfolded position. When all splicing bodies 21 are in the folded position, the splicing volute 20 is in a folded state; when at least one splicing body 21 is in the unfolded position, the splicing volute 20 is in an unfolded state. By adjusting the position of each splicing body 21, the splicing volute 20 can be switched between the folded and unfolded states.

[0058] In one exemplary embodiment of this application, multiple splicing bodies 21 can be moved to a folded position along a preset direction, and multiple splicing bodies 21 can be moved to an unfolded position in a direction opposite to the preset direction. When all multiple splicing bodies 21 are in the folded position, the splicing volute 20 is in a folded state; when at least one splicing body 21 is in the unfolded position, the splicing volute 20 is in an unfolded state. Preferably, the splicing volute 20 is configured in the form of multiple splicing bodies 21 connected in sequence, with each splicing body 21 having the same shape and size. When the splicing volute 20 is in the folded state, each splicing body 21 is in an overlapping folded position and is stored at one end of the opening side 100 of the volute body 10, which can reduce the overall space occupied by the splicing volute 20 and at the same time minimize the obstruction of the opening side 100.

[0059] Furthermore, the preset direction is the circumferential direction of the volute body 10. The circumferential direction of the volute body 10 has an opening side 100. The splicing volute 20 can be unfolded along the circumferential direction of the volute body 10 to the unfolded state to complete the volute body 10, or it can be folded back to the folded state to avoid the opening side 100 along the opposite direction of the preset direction.

[0060] It should be noted that, in this preferred embodiment, all the splicing bodies 21 are connected sequentially along the circumferential direction. When all the splicing bodies 21 are in the unfolded position, the splicing volute 20 is in the unfolded state; when all the splicing bodies 21 are in the folded position, the splicing volute 20 is in the folded state. Depending on actual needs, various structures and combinations of the splicing bodies 21 can be configured. That is, one of the splicing bodies 21 can be switched to the unfolded position so that the splicing volute 20 is in the unfolded state. When the dimensions of the multiple splicing bodies 21 are inconsistent—for example, when the circumferential area or radial dimensions of the splicing bodies 21 are inconsistent—switching any splicing body 21 that meets the required dimensions to the unfolded position will result in splicing volutes 20 with different expansion spaces, thereby adjusting the spatial size of the complete volute structure ultimately formed with the volute body 10.

[0061] In one exemplary embodiment of this application, when the splicing volute 20 is in a folded state, multiple splicing bodies 21 are overlapped along the radial direction of the volute body 10. When the splicing volute 20 is in an unfolded state, multiple splicing bodies 21 are arranged sequentially along the circumferential direction of the volute body 10, and each splicing body 21 is connected end to end to seal part of the opening side 100.

[0062] In one exemplary embodiment of this application, when the spliced ​​volute 20 is in a folded state, the spliced ​​volute 20 covers at least a portion of the volute body 10. This further reduces the space occupied by the volute assembly, making the structure of the volute assembly more compact. It should be noted that when the spliced ​​volute 20 is in a folded state, the spliced ​​volute 20 can be located inside or outside the volute body 10.

[0063] Furthermore, such as Figures 1 to 10 As shown, at least one splice 21 is rotatably connected to the volute body 10. The rotation method makes it easier to switch the position of the splice 21.

[0064] Preferably, the splicing body 21 is rotatably arranged around the axial direction of the volute body 10, so that the splicing body 21 can switch between a folded position and an unfolded position. Optionally, the rotation direction of the splicing body 21 can also be adjusted according to actual needs. For example, the splicing body 21 can also be rotated around the circumferential direction of the volute body 10, that is, the state can be switched by flipping up and down.

[0065] In one exemplary embodiment of this application, all splicing bodies 21 are rotatably arranged about the axial direction of the volute body 10, and each splicing body 21 is controlled independently, so as to make the control of the splicing volute 20 more precise and the position adjustment accuracy of the multiple splicing bodies 21 higher.

[0066] Furthermore, such as Figure 1 , Figure 2 , Figure 6 As shown, the splicing body 21 includes a splicing main body 211. When the splicing volute 20 is in the unfolded state, the splicing main body 211 and the volute main body 10 form a volute structure. The splicing main body 211 ensures that the final volute assembly forms a complete spiral airflow path, realizing the airflow guiding function of the volute assembly.

[0067] It should be noted that, in order for the splicing body 211 and the volute body 10 to fit together to form a complete volute shape, the shape of the splicing body 211 should match that of the volute body 10. Specifically, the splicing body 211 and the volute body 10 should be spliced ​​together to form a relatively complete volute shape. The volute can be a combination of one or more of the following: an involute, an Archimedean spiral, a multi-segment circular arc, and a zigzag line.

[0068] Specifically, the splicing body 211 extends along the circumferential direction of the volute body 10. This arrangement allows the volute structure formed by the splicing body 211 and the volute body 10 to be smooth and complete, resulting in smoother internal airflow.

[0069] Furthermore, the splicing body 21 also includes a connector 212. One end of the connector 212 is connected to the splicing main body 211, and the other end of the connector 212 is rotatably connected to the volute main body 10. The connector 212 can drive the splicing main body 211 to rotate, thereby realizing the position switching of the splicing body 21. At the same time, by using the connector 212 to indirectly drive the rotation of the splicing main body 211, the problem of directly setting a rotating structure on the splicing main body 211 and affecting the final volute structure performance is avoided.

[0070] It should be noted that when the volute assembly is applied to an electrical appliance, the volute assembly is assembled into the housing. As an alternative implementation, one end of the connector 212 is connected to the splicing body 211, and the other end of the connector 212 can be rotatably connected to the housing.

[0071] Optionally, the connector 212 is a plate-like structure, or the connector 212 can also be a connecting rod, connecting column, or other structures.

[0072] Preferably, when the splicing volute 20 is in a folded state, the splicing bodies 211 of the multiple splicing bodies 21 overlap along the radial direction of the volute body 10, and the connecting parts 212 of the multiple splicing bodies 21 overlap along the axial direction of the volute body 10.

[0073] Furthermore, the connector 212 extends radially along the volute body 10, which avoids increasing the axial dimension of the volute assembly and makes the overall structure of the volute assembly more compact.

[0074] It should be noted that the end of the connector 212 away from the splicing body 211 is the rotation center of the splicing body 21. This rotation center can be set to coincide with the central axis of the volute body 10, or it can be set to deviate from the central axis of the volute body 10. A mating part can be provided on the volute body 10 so that each connector 212 is connected to the mating part, thereby allowing each splicing body to rotate around the geometric center of the mating part.

[0075] In this embodiment, the splicing body 211 is the portion extending circumferentially along the volute body 10 and sealing the opening side 100, and the connector 212 is the portion extending radially along the volute body 10 and sealing the opening side 100. Preferably, each splicing body 21 includes one splicing body 211 and two connectors 212. The connection between two adjacent splicing bodies 21 is achieved by connecting two adjacent connectors 212 and two adjacent splicing bodies 211 to each other. The shape and size of the splicing body 211 and connector 212 of each adjacent splicing body 21 are adapted to each other so that each splicing body 21 overlaps when the splicing volute 20 is in the folded state. Setting the connector 212 to drive the splicing body 211 to rotate can make the movement process of the splicing body 211 smoother.

[0076] Specifically, connectors 212 are provided at both ends of the splicing body 211. That is, along the height direction of the volute body 10 (i.e., the axial direction of the volute body 10), connectors 212 are provided at the top and bottom ends of the splicing body 211, and each connector 212 is connected to both ends of the rotation axis of the volute body 10 to improve the stability of the spliced ​​volute 20. Depending on actual needs, connectors 212 can also be provided at only one end of the splicing body 211 to simplify the structure of the spliced ​​volute 20, or connectors 212 can be provided on the inner or outer circumferential surface of the splicing body 211.

[0077] Optionally, such as Figures 6 to 8 As shown, the end of the connector 212 furthest from the splicing body 211 has a hollow structure. This reduces the material used in the connector 212 and its weight, thereby reducing the load on the volute assembly. Furthermore, the hollow structure at the end of the connector 212 furthest from the splicing body 211, while the solid structure at the end closest to the splicing body 211, reduces axial obstruction and friction on the internal space of the volute while ensuring good sealing of the splice body 21. This makes the splice body 21 more flexible and easier to operate. Specifically, the hollow structure avoids the location of the air inlet of the volute structure, reducing airflow resistance.

[0078] Optionally, the rotation centers of each splice body 21 are set identically. This arrangement facilitates the integration of the rotation centers of multiple splice bodies 21, thereby simplifying the structure of the splicing volute 20. For example... Figure 6As shown, the arcs on the three spliced ​​bodies 21 all correspond to the same center, that is, they have the same center of rotation.

[0079] Optionally, the rotation centers of at least two splicing bodies 21 are set differently. By setting different rotation centers, different rotation paths can be set for different splicing bodies 21, thereby increasing the degree of freedom in adjusting the state switching process of the splicing volute 20. Figure 6 For example, a single arc of one of the splicing bodies 21 can be replaced with a combination structure of "arc + arc". Different arcs on the same splicing body 21 can be non-concentric. Alternatively, a single arc of the splicing body 21 can be replaced with a combination structure of "arc + broken line".

[0080] Furthermore, when the splicing volute 20 is in the unfolded state, at least two adjacent splicing bodies 21 are provided with a gap. The reserved gap can avoid damage caused by friction between the splicing bodies 21 and extend the service life of the splicing bodies 21.

[0081] Optionally, the splicing body 21 is slidably connected to the volute body 10, and the splicing body 21 can slide to a folded position and an unfolded position. That is, sliding structures can be provided on the volute body 10 and the splicing body 21 to allow the splicing body 21 to slide relative to the volute body 10. For example, slide rails or grooves can be provided on the volute body 10, and sliders or slide bars can be provided on the splicing body 21. This arrangement can make the position switching process of the splicing body 21 smoother.

[0082] Optionally, the connection structure can be configured such that adjacent splicing bodies 21 can slide relative to each other. For example, multiple splicing bodies 21 include a first splicing body, a second splicing body, and a third splicing body arranged sequentially along the circumference of the volute body 10. The first splicing body is closest to the opening end of the volute body 10. Along the circumference of the volute body 10, the first splicing body can slide relative to the opening end of the volute body 10, the second splicing body can slide relative to the first splicing body, and the third splicing body can slide relative to the second splicing body. When switching the state of the spliced ​​volute 20, each splicing body 21 slides towards the opening side in the direction away from the opening end of the volute body 10. The first splicing body, the second splicing body, and the third splicing body are sequentially switched to the unfolded position, thereby switching the spliced ​​volute 20 to the unfolded state. To facilitate the movement of multiple splicing bodies 21, the axial dimension of the first splicing body can be larger than the axial dimension of the volute body 10, the axial dimension of the second splicing body can be larger than the axial dimension of the first splicing body, and the axial dimension of the third splicing body can be larger than the axial dimension of the second splicing body.

[0083] According to another specific embodiment of this application, a ceiling-mounted electrical appliance is also provided, which has a volute assembly, the volute assembly being the same as that 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.

[0084] When the volute assembly in the above embodiments is applied to ceiling electrical appliances, such as Figure 5 As shown, since the volute assembly is composed of foldable splice bodies 21, multiple splice bodies 21 can be folded together along the circumferential direction of the volute assembly to form the size of a single splice body 21, and then moved to one side of the volute body 10. This does not occupy the radial space of the volute assembly, which facilitates the installation of internal components of the volute assembly. When multiple splice bodies 21 are unfolded along the circumferential direction of the volute assembly and connected to each other, and together with the volute body 10 to form a complete volute, the volute space can be increased, resulting in better air outlet performance of the ceiling appliances. This makes them more suitable for environments with high air volume requirements, improving the air outlet performance and practicality of the ceiling appliances.

[0085] Furthermore, such as Figures 7-10 As shown, the ceiling electrical appliance also includes a housing 1, and at least part of the volute assembly is provided inside the housing 1. When the spliced ​​volute 20 is in the unfolded state, at least part of the spliced ​​volute 20 protrudes outward from the housing 1 along the radial direction of the volute body 10.

[0086] Applying the technical solution of this embodiment, when the splicing volute 20 is in the unfolded state, that is, when each splice body 21 is in the unfolded position, along the longitudinal direction of the shell 1 (the width direction of the shell 1), some splice bodies 21 protrude from the shell 1, and the protruding part blocks the opening side 100. The splicing volute 20 and the volute body 10 are arranged to form a complete volute. Since the splicing volute 20 can protrude outward to increase the flow area of ​​the volute, the volute body 10 can have a larger air volume, thereby making the air outlet effect better, more suitable for environments with high air volume requirements, and improving air outlet performance and practicality.

[0087] Specifically, such as Figures 3-5 , Figures 7-10As shown, the volute body 10 is disposed inside the housing 1, and the housing 1 has a housing opening 101. When the spliced ​​volute 20 is in the folded state, the spliced ​​volute 20 is located inside the housing 1 to avoid the housing opening 101. When the spliced ​​volute 20 is in the unfolded state, the spliced ​​volute 20 protrudes from the housing 1 through the housing opening 101. After the volute body 10 is placed inside the housing 1 through the housing opening 101, the opening side 100 of the volute body 10 is aligned with the housing opening 101. When the spliced ​​volute 20 is switched to the folded state, the multiple splice bodies 21 of the spliced ​​volute 20 overlap and are stored inside the housing 1 to avoid the opening side 100 and the housing opening 101, without affecting the installation of internal components of the housing 1 through the housing opening 101. When the spliced ​​volute 20 is switched to the unfolded state, the multiple splice bodies 21 of the spliced ​​volute 20 are connected to each other and unfolded. Their protruding parts pass through the housing opening 101 and block at least part of the housing opening 101. The protruding parts of the splice bodies 21 and the volute body 10 form a volute with a larger capacity, which can make the volute assembly have a larger air volume.

[0088] Preferably, one side of the opening side 100 is connected to one side of the shell opening 101. When the spliced ​​volute 20 is in the unfolded state, the part protruding from the shell opening 101 can simultaneously seal the opening side 100 and the shell opening 101, preventing impurities from entering the shell 1 and affecting the function of the internal components of the shell 1.

[0089] Furthermore, such as Figure 5 , Figure 6 , Figure 9 As shown, an air supply duct 11 is also provided inside the housing 1. When the spliced ​​volute 20 is in the unfolded state, the side of the spliced ​​volute 20 away from the opening side 100 is connected to the air supply duct 11. Since the volute body 10 is provided with the opening side 100, the air supply duct 11 is divided into two sections along the length of the housing 1. When the spliced ​​volute 20 switches from the folded state to the unfolded state, the spliced ​​volute 20 partially blocks the opening side 100, and the fan assembly located inside the volute assembly discharges air. At the same time, the volute body 10, the spliced ​​volute 20 and the air supply duct 11 form a complete air duct structure, realizing the fan discharge and air supply.

[0090] It should be noted that after the splicing volute 20 seals the opening side 100, it connects with the air supply duct 11. The splicing body 21 connected to the air supply duct 11 can achieve the connection between the splicing volute 20 and the air supply duct 11 through a matching structure such as buckle and magnetic attraction, so as to improve the stability of the connection of the air supply duct 11.

[0091] Furthermore, such as Figure 8 , Figure 10As shown, the ceiling electrical appliance also includes an air collecting plate 3, on which an air outlet 30 is provided that communicates with the air supply duct 11. At least one of the housing 1, the volute body 10, and the air collecting plate 3 is provided with a rotating shaft 210, and the splicing volute 20 is rotatably connected to the rotating shaft 210. The housing 1 has an installation space where various components of the ceiling electrical appliances are installed, such as the fan assembly, the light body assembly, and the volute assembly. The airflow in the air supply duct 11 can be blown out through the air outlet 30 of the air collecting plate 3 to meet the user's requirements for the air outlet of the ceiling electrical appliances. The splicing volute 20 can rotate around the pivot 210 to switch between the folded and unfolded states. Setting the pivot 210 on one or more of the housing 1, the volute body 10, or the air collecting plate 3 can improve the stability of the splicing volute 20 rotating through the pivot 210, based on the large size of the housing 1 and the air collecting plate 3. Setting the pivot 210 on the volute body 10 can improve the structural compactness of the volute assembly and facilitate the assembly of the volute assembly.

[0092] It should be understood that the rotating shaft 210 can be a motor output shaft or a connecting shaft used to connect the splicing volute 20 and the drive motor output shaft.

[0093] In one embodiment of this application, the air supply duct 11 further includes a duct top plate and a duct bottom plate. The duct side plate 12, the duct top plate, and the duct bottom plate form a shell 1, meaning that the air supply duct 11 is part of the structure of the shell 1, and the duct bottom plate is formed from the bottom of the shell 1. The profile of the duct side plate 12 can be a volute profile, or it can be a profile structure including straight lines and curved lines.

[0094] In another embodiment of this application, the air supply duct 11 includes a duct side plate 12, a duct top plate, and a duct bottom plate. The air supply duct 11 and the housing 1 form a separate assembly component, that is, the air supply duct 11 is independently formed in the housing 1. In this case, the duct bottom plate of the air supply duct 11 is connected to the bottom of the housing 1 (with independent bottoms). The difference between this embodiment and the above embodiment is that both the air supply duct 11 and the housing 1 have their own bottom plates.

[0095] In one embodiment of this application, the ceiling-mounted electrical appliance is a bathroom heater / ventilation unit. The bathroom heater / ventilation unit has the volute assembly and housing 1 described in the previous embodiment. The housing 1 is the outer casing of the bathroom heater / ventilation unit. A duct side plate 12 is formed on the housing 1. The air supply duct 11 and the housing 1 are two independently configured components. Alternatively, the duct side plate 12 can be configured as a plate structure, with the duct side plate 12, the side wall of the housing, and the bottom plate forming the air supply duct 11. An air collecting plate 3 is provided on the side of the housing 1 opposite to the bottom. A panel is provided on the outer side of the air collecting plate 3, and a lamp assembly is located on the side containing the air collecting plate 3 and the panel.

[0096] When the volute assembly and housing are applied to a bathroom heater, the spliced ​​volute 20 protrudes outward onto the housing 1, increasing the flow area of ​​the air duct 11 formed by the spliced ​​volute 20 and the housing 1. This improves the single-unit airflow of the bathroom heater, allowing the housing 1 to have a larger airflow without modifying the size of the bathroom heater fan and housing 1, resulting in better airflow performance. Furthermore, the spliced ​​volute 20 can be folded and unfolded for position switching, avoiding complex installation while meeting different airflow requirements of users. This achieves performance optimization and simplified installation in the field of bathroom heater equipment technology, improving the airflow performance and practicality of the bathroom heater.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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 volute assembly, characterized in that, include: The volute body (10) has an opening side (100); The splicing volute (20) has a folded state and an unfolded state. When the splicing volute (20) is in the unfolded state, the splicing volute (20) partially blocks the opening side (100).

2. The volute assembly according to claim 1, characterized in that, When the spliced ​​volute (20) is in the folded state, the spliced ​​volute (20) is positioned away from the opening side (100) to avoid the opening side (100).

3. The volute assembly according to claim 1 or 2, characterized in that, The spliced ​​volute (20) includes multiple splicing bodies (21), which are movably arranged.

4. The volute assembly according to claim 3, characterized in that, When the spliced ​​volute (20) is in the folded state, the plurality of spliced ​​bodies (21) have overlapping portions.

5. The volute assembly according to claim 3, characterized in that, The splicing body (21) has a folded position and an unfolded position. When all the splicing bodies (21) are in the folded position, the splicing volute (20) is in the folded state. When at least one of the splicing bodies (21) is in the unfolded position, the splicing volute (20) is in the unfolded state.

6. The volute assembly according to claim 3, characterized in that, At least one of the splice bodies (21) is rotatably connected to the volute body (10).

7. The volute assembly according to claim 3, characterized in that, The splicing body (21) includes a splicing main body (211). When the splicing volute (20) is in the unfolded state, the splicing main body (211) and the volute main body (10) form a volute structure.

8. The volute assembly according to claim 7, characterized in that, The splicing body (211) extends along the circumferential direction of the volute body (10).

9. The volute assembly according to claim 7, characterized in that, The splicing body (21) also includes a connector (212), one end of which is connected to the splicing body (211), and the other end of which is rotatably connected to the volute body (10).

10. The volute assembly according to claim 9, characterized in that, The connector (212) extends along the radial direction of the volute body (10).

11. The volute assembly according to claim 9, characterized in that, The connector (212) is provided at both ends of the splicing body (211).

12. The volute assembly according to claim 9, characterized in that, The end of the connector (212) away from the splicing body (211) is provided with a hollow structure.

13. The volute assembly according to claim 6, characterized in that, The rotation centers of each of the splicing bodies (21) are set in the same way, or the rotation centers of at least two of the splicing bodies (21) are set in different ways.

14. The volute assembly according to claim 3, characterized in that, When the spliced ​​volute (20) is in the unfolded state, at least two adjacent spliced ​​bodies (21) are provided with a gap between them.

15. The volute assembly according to claim 5, characterized in that, The splicing body (21) is slidably connected to the volute body (10), and the splicing body (21) can slide to the folded position and the unfolded position.

16. A ceiling-mounted electrical appliance, the ceiling-mounted electrical appliance having a volute assembly, characterized in that, The volute assembly is the volute assembly according to any one of claims 1-15.

17. The ceiling electrical appliance according to claim 16, characterized in that, The ceiling electrical appliances also include: The housing (1) contains at least a portion of the volute assembly. When the spliced ​​volute (20) is in the unfolded state, at least a portion of the spliced ​​volute (20) protrudes outward from the housing (1) along the radial direction of the volute body (10).

18. The ceiling electrical appliance according to claim 17, characterized in that, The volute body (10) is disposed inside the housing (1). The housing (1) has a housing opening (101). When the spliced ​​volute (20) is in the folded state, the spliced ​​volute (20) is located inside the housing (1) to avoid the housing opening (101). When the spliced ​​volute (20) is in the unfolded state, the spliced ​​volute (20) protrudes from the housing (1) through the housing opening (101).

19. The ceiling electrical appliance according to claim 17 or 18, characterized in that, The housing (1) is also provided with an air supply duct (11). When the splicing volute (20) is in the unfolded state, the side of the splicing volute (20) away from the opening side (100) is connected to the air supply duct (11).

20. The ceiling electrical appliance according to claim 19, characterized in that, The ceiling electrical appliance also includes an air collecting plate (3), on which an air outlet (30) communicating with the air supply duct (11) is provided. At least one of the housing (1), the volute body (10), and the air collecting plate (3) is provided with a rotating shaft (210), and the spliced ​​volute (20) is rotatably connected to the rotating shaft (210).

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