Fan blade assembly and ceiling electric appliance with same

Abstract

The utility model provides a fan blade assembly and a ceiling electric appliance with the fan blade assembly, and relates to the technical field of ceiling electric appliances, the fan blade assembly comprises a plurality of fan blade impellers, the plurality of fan blade impellers are arranged along the axial direction of one fan blade impeller, at least one fan blade impeller is adjustably arranged relative to the axial direction of the other fan blade impellers, and the fan blade impellers are arranged along the axial direction of the other fan blade impellers. The fan blade impellers can be adjusted to the to-be-assembled positions for axial storage and the working positions for axial unfolding, when the fan blade impellers are installed, the fan blade impellers can be adjusted to the to-be-assembled positions for axial storage so as to adapt to the installation space of national standard parts, and after installation is completed, the fan blade impellers can be adjusted to the to-be-assembled positions for axial storage so that the fan blade impellers can be assembled. According to the fan blade assembly, the multiple fan blade impellers can be adjusted to the axially-unfolded working positions, so that the air outlet performance of the fan blade assembly is improved, the problem that in the prior art, the air outlet performance is poor due to the fact that the size of a volute is limited is solved, and the practicability of the fan blade assembly is improved.

Description

Technical Field

[0001] The present invention relates to the field of ceiling appliances, and more specifically, to a fan blade assembly and a ceiling appliance having the same. This application claims priority to a patent application filed with the State Intellectual Property Office of China on July 26, 2024, with application number 2024217965896 and utility model title “Fan blade assembly and ceiling appliance having the same.” Background Art

[0002] Common ceiling-mounted appliances include air conditioners, bathroom heaters, fresh air blowers, and ventilation fans. Bathroom heaters, as a common indoor heating device, primarily heat the air to increase the bathroom temperature. These heaters typically consist of a housing, a fan assembly (including the blades and drive motor), and a volute. The size of the blades and volute is closely linked to the performance of the heater.

[0003] In the existing technology, in order to improve the performance of the bathroom heater, attempts have been made to improve the size of the fan blades and volute of the bathroom heater, so that the fan blades and volute of the bathroom heater are increased as much as possible based on the original size. However, the limitation of this method is that the size of the fan blades and volute is limited by the size of the box, and the size of the bathroom heater box is limited by the size of the ceiling gusset plate and the width of the keel. Therefore, the size of the fan blades and volute is limited by the size of the ceiling gusset plate and the width of the keel. This limitation makes the performance improvement of the bathroom heater unable to meet the user's high demand for the performance of the bathroom heater. In addition, although the existing solution can increase the size of the fan blades and volute by improving the design, this method is difficult to implement and the cost is also high. Moreover, if the size of the fan blades is too large, it will be inconvenient to install the bathroom heater.

[0004] To address the above issues, no effective solutions have been proposed so far. Utility Model Content

[0005] The main purpose of the utility model is to provide a fan blade assembly and a ceiling appliance having the same, so as to solve the problem in the prior art that the fan blade size is limited and the air output performance is poor.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a fan blade assembly is provided, including: a fan blade impeller, a plurality of fan blade impellers, the plurality of fan blade impellers are arranged along the axial direction of one of the fan blade impellers, and at least one fan blade impeller is adjustably arranged relative to the axial direction of the remaining fan blade impellers, so that the plurality of fan blade impellers have an axially retracted position to be assembled, and the plurality of fan blade impellers have an axially expanded working position.

[0007] Furthermore, at least one of the multiple fan blade impellers is movably arranged in the axial direction relative to the other fan blade impellers, wherein at least one fan blade impeller can be moved to a to-be-assembled position close to the other fan blade impellers along a first axial direction, and at least one fan blade impeller can be moved to a working position along a second direction opposite to the first direction, wherein when at least one fan blade impeller is in the to-be-assembled position, the axial height of the multiple fan blade impellers is less than the axial height when the multiple fan blade impellers are in the working position.

[0008] Furthermore, the fan blade assembly includes: a driving motor, a plurality of fan blade impellers arranged along the axial direction of the output shaft of the driving motor, and at least one of the plurality of fan blade impellers can slide to an assembly position and a working position along the axial direction relative to the other fan blade impellers.

[0009] Furthermore, the fan blade assembly includes: an elastic member, which is arranged between two adjacent fan blade impellers, and the elastic member has an initial state and a compressed state, wherein when multiple fan blade impellers are in the assembly position, the elastic member is in the compressed state, and when multiple fan blade impellers are in the working position, the elastic member is reset to the initial state.

[0010] Furthermore, at least one of the two adjacent fan impellers is provided with a placement groove, and the elastic member is at least partially located in the placement groove.

[0011] Furthermore, two adjacent fan impellers are connected via a connecting shaft or an output shaft, and the elastic member is arranged along the circumference of the connecting shaft or the output shaft.

[0012] Furthermore, two adjacent fan impellers are connected via a connecting shaft, and the elastic member is arranged along the circumference of the connecting shaft, wherein the connecting shaft is connected to the output shaft.

[0013] Furthermore, each fan blade impeller is provided with a through hole for the connecting shaft or the output shaft to pass through, at least one of the two adjacent fan blade impellers is provided with a recessed portion, and the elastic member is at least partially disposed in the recessed portion, or at least one of the two adjacent fan blade impellers is provided with a raised portion, and the elastic member is connected to the raised portion.

[0014] Furthermore, one of the two adjacent fan blade impellers is provided with a protrusion, and the other of the two adjacent fan blade impellers is provided with a recess. When the multiple fan blade impellers are in the position to be assembled, at least part of the protrusion extends into the recess.

[0015] Furthermore, the multiple fan impellers include: a first impeller, a first boss is provided on the first hub of the first impeller, and a through hole is provided on the first boss for the connecting shaft or the output shaft to pass through; a second impeller, the first impeller and the second impeller are arranged adjacent to each other, a second boss is provided on the side of the second hub of the second impeller close to the first impeller, and a through hole is provided on the second boss for the connecting shaft or the output shaft to pass through.

[0016] Furthermore, the blades of adjacent fan blade impellers are staggered. In the same fan blade impeller, an avoidance channel is formed between the blades of adjacent fan blade impellers. When multiple fan blade impellers are in the assembly position, the blades of at least one fan blade impeller can be at least partially located in the avoidance channel of the adjacent fan blade impeller. When multiple fan blade impellers are in the working position, the blades of each fan blade impeller are at least partially located outside the avoidance channel of the adjacent fan blade impeller.

[0017] Furthermore, the elastic member is a spring.

[0018] According to another aspect of the present invention, a ceiling-mounted electrical appliance is provided, comprising a fan blade assembly, wherein the fan blade assembly is the above-mentioned fan blade assembly.

[0019] Furthermore, the ceiling appliance includes a shell assembly, which includes: a shell, an air duct is arranged in the shell, and the air duct includes a volute air duct, wherein the fan blade assembly is arranged in the volute air duct located in the shell.

[0020] Furthermore, the ceiling appliance includes a volute side panel and a spliced ​​volute, the volute side panel is located in the shell, the volute side panel has an opening, the spliced ​​volute has a blocking position for blocking at least part of the opening, and the spliced ​​volute has a avoidance position away from the opening or a storage position stored in the shell. When the spliced ​​volute is in the blocking position, at least part of the spliced ​​volute protrudes from the shell so that the spliced ​​volute and the volute side panel are arranged to form a volute air duct.

[0021] Furthermore, the spliced ​​volute is detachably connected to the shell body. When the spliced ​​volute is connected to the shell body, the spliced ​​volute is in a blocking position.

[0022] By applying the technical solution of the present invention, when installing the fan blade impellers, multiple fan blade impellers can be adjusted to an axially retracted position for assembly to adapt to the installation space of national standard parts. After the installation is completed, multiple fan blade impellers can be adjusted to an axially expanded working position to improve the wind output performance of the fan blade assembly. While increasing the size of the wind assembly, the convenience of the fan blade assembly during installation is ensured, which solves the problem of poor wind output performance caused by limited fan blade size in the prior art and increases the practicality of the fan blade assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic structural diagram of a first embodiment of a fan blade assembly according to the present utility model is shown;

[0025] Figure 2 Shown Figure 1 Enlarged view of point B in the middle;

[0026] Figure 3 A schematic structural diagram of a second embodiment of a fan blade assembly according to the present utility model is shown;

[0027] Figure 4 Shown Figure 4 Enlarged view of point C in the middle;

[0028] Figure 5 FIG2 shows a schematic structural diagram of a third embodiment of a fan blade assembly according to the present utility model;

[0029] Figure 6 FIG2 shows a schematic structural diagram of a fourth embodiment of a fan blade assembly according to the present utility model;

[0030] Figure 7 FIG2 shows a schematic structural diagram of a fifth embodiment of a fan blade assembly according to the present utility model;

[0031] Figure 8 FIG2 shows a schematic structural diagram of a sixth embodiment of a fan blade assembly according to the present utility model;

[0032] Figure 9 Shown Figure 8 Enlarged view of point A in the middle;

[0033] Figure 10 A schematic structural diagram of a first embodiment of a ceiling-mounted electrical appliance according to the present utility model is shown;

[0034] Figure 11 A structural schematic diagram of a second embodiment of a ceiling-mounted electrical appliance according to the present utility model is shown.

[0035] The above drawings include the following reference numerals:

[0036] 10. Fan impeller;

[0037] 100, leaves;

[0038] 101. First connecting member;

[0039] 102. Second connecting member;

[0040] 103. Support member;

[0041] 11. First impeller;

[0042] 111. Raised portion; 1111. First connecting protrusion;

[0043] 12. Second impeller;

[0044] 121, recessed portion; 1211, second connecting protrusion;

[0045] 13. Through hole;

[0046] 20. Elastic parts;

[0047] 200, avoidance passage;

[0048] 30. Connecting shaft;

[0049] 40. Shell; 401. Opening;

[0050] 41. Air duct; 411. Volute air duct; 412. Air supply duct; 4120. Air supply side panel;

[0051] 42. Volute side panel;

[0052] 50. Splicing the volute;

[0053] 60. Drive motor; 61. Output shaft. DETAILED DESCRIPTION

[0054] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0057] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0058] Combine Figures 1 to 9 As shown, in combination with a specific embodiment of the present utility model, a fan blade assembly is provided.

[0059] Specifically, the fan blade assembly includes a plurality of fan blade impellers 10, the plurality of fan blade impellers 10 being arranged along the axial direction of one of the fan blade impellers 10, and at least one fan blade impeller 10 being adjustably arranged relative to the axial direction of the remaining fan blade impellers 10, so that the plurality of fan blade impellers 10 have an axially retracted position ready for assembly, and the plurality of fan blade impellers 10 have an axially extended working position. The fan blade assembly can be used in conventional bathroom heaters as well as linear bathroom heaters.

[0060] Combine Figure 1 and Figure 3 As shown, in this embodiment, when the fan blade assembly is used in a conventional bathroom heater, when installing the fan blade impeller 10, the plurality of fan blade impellers 10 can be adjusted to the axially received position to be assembled (such as Figure 2 As shown) to reduce the axial height of the fan blade assembly, it can better adapt to the installation space of the national standard parts. After installation, the multiple fan blade impellers 10 can be adjusted to the axially expanded working position (as shown) Figure 1 As shown), the height of the fan blade assembly in the axial direction is increased, wherein, when at least one fan blade impeller 10 is in the position to be assembled, the axial height of the plurality of fan blade impellers 10 is less than the axial height when the plurality of fan blade impellers 10 are in the working position so as to improve the wind output performance of the fan blade assembly, while increasing the size of the wind assembly and ensuring the convenience of the fan blade assembly during installation, solving the problem of poor wind output performance caused by limited volute size in the prior art and increasing the practicality of the fan blade assembly.

[0061] In another embodiment of the present application, when the fan blade assembly is used in a linear bathroom heater, the linear bathroom heater can be configured as a shell including a first shell and a second shell, and the first shell and the second shell are detachably connected. When the linear bathroom heater is installed, the first shell and the second shell are first disassembled, and the fan blade assembly is moved to the assembly position and connected to one of the first shell and the second shell. The first shell and the second shell are respectively placed in the ceiling space through the installation openings reserved in the ceiling board, and then the first shell is connected to the second shell, and the multiple fan blade impellers 10 are adjusted to the axially expanded working position, or the multiple fan blade impellers 10 are adjusted to the working position before the first shell is connected to the second shell to realize the installation of the linear bathroom heater. When the linear bathroom heater is working, such a setting improves the air outlet performance of the fan blade assembly in the linear bathroom heater while ensuring that the width of the linear bathroom heater is extremely narrow and the installation is beautiful, thereby increasing the practicality of the fan blade assembly.

[0062] In order to achieve axial adjustment of at least one fan impeller 10 relative to the other fan impellers 10, at least one fan impeller 10 among the plurality of fan impellers 10 is movably arranged in the axial direction relative to the other fan impellers 10, wherein at least one fan impeller 10 can be moved in a first axial direction close to the other fan impellers 10 to a ready-to-assemble position, and at least one fan impeller 10 can be moved in a second direction opposite to the first direction to a working position, wherein when the at least one fan impeller 10 is in the ready-to-assemble position, the axial height of the plurality of fan impellers 10 is less than the axial height of the plurality of fan impellers 10 in the working position. The plurality of fan impellers 10 can be coaxially arranged so that the height of at least one fan impeller 10 relative to the other fan impellers 10 is adjustable in the axial direction, the first direction being along the axial direction of the fan impeller 10 and close to the other fan impellers 10, and the second direction being along the axial direction of the fan impeller 10 and away from the other fan impellers 10. After at least one fan blade impeller 10 is moved to the position to be assembled, the at least one fan blade impeller 10 can be matched and limited with at least one adjacent fan blade impeller 10, thereby improving the stability of the fan blade assembly when it is in the position to be assembled. The matching and limiting between the at least one fan blade impeller 10 and at least one adjacent fan blade impeller 10 can be, but is not limited to, provided with a limiting member and a limiting groove. The limiting member can be a limiting protrusion, a limiting block, or an elastic limiting member, etc., as long as the at least one fan blade impeller 10 can be locked and unlocked with the at least one adjacent fan blade impeller 10.

[0063] In one embodiment of the present application, the fan blade assembly includes a drive motor 60, a plurality of fan blade impellers 10 are arranged along the axial direction of the output shaft 61 of the drive motor, at least one of the plurality of fan blade impellers 10 is slidably arranged along the axial direction relative to the other fan blade impellers 10, and at least one fan blade impeller 10 is moved along the axial direction of the output shaft 61 of the drive motor to slide each fan blade impeller 10 to a ready-to-assemble position and a working position. Figure 5 As shown, the fan impeller 10 and the output shaft 61 of the driving motor can be connected by threads or by sliding components (such as guide rails and sliders).

[0064] In one embodiment of the present application, the fan impeller 10 is connected to the output shaft 61 of the drive motor via a threaded connection. When the fan impeller 10 is adjusted to the working position or the assembly position, the threaded connection enables the output shaft 61 of the drive motor to drive the fan impeller 10 to rotate. Preferably, the output shaft 61 of the drive motor can be configured as a D-shaped shaft. This configuration can further optimize the limiting effect of the output shaft 61 of the drive motor and the fan impeller 10, preventing the fan impeller 10 from rotating relative to the output shaft 61 of the drive motor.

[0065] In another embodiment of the present application, a plurality of first positioning holes are provided on the output shaft 61 of the driving motor, and the plurality of first positioning holes are arranged at intervals along the axial direction of the output shaft 61 of the driving motor. A second positioning hole is provided on the side of the fan impeller 10 close to the output shaft 61 of the driving motor. When the fan impeller 10 is adjusted to the working position or the assembly position, the first positioning hole and the second positioning hole are aligned and screwed in to achieve the fixation of each fan impeller 10.

[0066] In another embodiment of the present application, a positioning hole is provided on one side of the fan impeller 10 near the output shaft 61 of the drive motor. A plurality of balls are provided on the output shaft 61 of the drive motor. The plurality of balls are spaced apart along the axial direction of the output shaft 61 of the drive motor. When the fan impeller 10 is adjusted to the working position or the assembly position, the balls are located in the positioning holes, thereby securing each fan impeller 10 and improving the connection stability between adjacent fan impellers 10. In other embodiments of the present application, the balls may be replaced with other elastic members as long as they can cooperate with the positioning holes to achieve positioning.

[0067] Combine Figures 1 to 4As shown, the fan blade assembly includes an elastic member 20, which is disposed between two adjacent fan blade impellers 10. The elastic member 20 has an initial state and a compressed state. When the multiple fan blade impellers 10 are in the ready-to-assemble position, the elastic member 20 is in the compressed state. When the multiple fan blade impellers 10 are in the operating position, the elastic member 20 returns to the initial state. The provision of the elastic member 20 reduces direct contact between the fan blade impellers, reduces wear, enables flexible adjustment of the position of the fan blade impellers 10, and allows for free rotation in the operating state, thereby improving the adaptability and efficiency of the fan blade assembly.

[0068] In a specific embodiment of the present application, at least one of the two adjacent impellers 10 is provided with a placement slot, and the elastic member 20 is at least partially located within the placement slot. This arrangement ensures stable placement of the elastic member 20, improving the reliability of the impeller assembly. This allows the elastic member 20 to be compressed when the first impeller 11 and the second impeller 12 approach each other in the axial direction, while ensuring that the elastic member 20 provides elastic force when the first impeller 11 and the second impeller 12 move away from each other in the axial direction.

[0069] In a specific embodiment of the present application, two adjacent fan blade impellers 10 are connected through the output shaft 61 of the driving motor, and the elastic member 20 is arranged along the circumference of the output shaft 61 of the driving motor. This arrangement improves the connection strength between the adjacent fan blade impellers 10.

[0070] In another specific embodiment of the present application, two adjacent fan blade impellers 10 are connected by a connecting shaft 30, and the elastic member 20 is arranged along the circumference of the connecting shaft 30, wherein the connecting shaft 30 is connected to the output shaft 61 of the driving motor. This arrangement improves the connection strength between adjacent fan blade impellers 10.

[0071] In a specific embodiment of the present application, each impeller 10 is provided with a through hole 13 for the connecting shaft 30 or the output shaft 61 of the drive motor to pass through. At least one of the two adjacent impellers 10 is provided with a recessed portion 121, and the elastic member 20 is at least partially disposed within the recessed portion 121. This arrangement achieves an elastic connection between the two adjacent impellers 10, making the installation process of the ceiling appliance more convenient. In this embodiment, the recessed portion 121 is a placement groove.

[0072] In another specific embodiment of the present application, each fan impeller 10 is provided with a through hole 13 for the connecting shaft 30 or the output shaft 61 of the driving motor to pass through, at least one of the two adjacent fan impellers 10 is provided with a protrusion 111, the elastic member 20 is connected to the protrusion 111, and the elastic member 20 is located between the two adjacent fan impellers 10. This arrangement realizes the elastic connection of the two adjacent fan impellers 10, making the installation process of the ceiling appliance more convenient.

[0073] In another specific embodiment of the present application, one of the two adjacent fan blade impellers 10 is provided with a protrusion 111, and the other of the two adjacent fan blade impellers 10 is provided with a recessed portion 121. When multiple fan blade impellers 10 are in the position to be assembled, at least part of the protrusion 111 extends into the recessed portion 121, and one end of the elastic member 20 is connected to the protrusion 111, and one end of the elastic member 20 extends into the recessed portion 121. This arrangement realizes the elastic connection of the two adjacent fan blade impellers 10, further saves the space occupied by multiple fan blade impellers 10 when they are in the position to be assembled, and the recessed portion 121 can guide the protrusion 111 so that the fan blade assembly can be installed in a limited space, reducing the difficulty of installation.

[0074] Combine Figure 4 and Figure 5 As shown, in a specific embodiment of the present application, the plurality of impellers 10 include a first impeller 11 and a second impeller 12, the first impeller 11 and the second impeller 12 are arranged adjacent to each other, and the first impeller 11 and the second impeller 12 are connected by a connecting shaft 30, and the elastic member 20 is arranged along the circumference of the connecting shaft 30. The blade assembly also includes a drive motor, wherein the connecting shaft 30 is connected to the output shaft 61 of the drive motor (as shown in FIG. Figure 4 In one embodiment of the present application, the connecting shaft 30 is integrally provided with the output shaft 61 of the drive motor to enable the drive motor 60 to drive the first impeller 11 and the second impeller 12. This arrangement can improve the stability of the fan assembly, reduce vibration, and improve air output efficiency. Preferably, the first impeller 11 and the second impeller 12 are coaxially arranged. This arrangement helps to save space when multiple fan impellers 10 are in the assembly position, allowing the fan assembly to be installed in a limited space and reducing installation difficulty.

[0075] Furthermore, the plurality of impellers 10 include a first impeller 11 and a second impeller 12, which are disposed adjacent to each other. A first boss is disposed on the first hub of the first impeller 11, and a through-hole 13 is provided on the first boss for the connecting shaft 30 or the output shaft 61 of the drive motor to pass through. A second boss is disposed on the side of the second hub of the second impeller 12 proximate to the first impeller 11, and a through-hole 13 is provided on the second boss for the connecting shaft 30 or the output shaft 61 of the drive motor to pass through. In this manner, a stable connection between the first impeller 11 and the second impeller 12 is achieved, while the elastic member 20 provides a certain degree of elasticity in the connection, ensuring the stability and reliability of the two impeller assemblies during operation.

[0076] In a preferred embodiment of the present application, a protrusion 111 is provided on the first hub of the first impeller 11, and a recess 121 is provided on the side of the second hub of the second impeller 12 adjacent to the first impeller 11. Both the protrusion 111 and the recess 121 are provided with a through hole 13 for the connecting shaft 30 or the output shaft 61 of the drive motor to pass through. The elastic member 20 is located between the top of the protrusion 111 and the bottom of the recess 121. In this way, the first impeller 11 and the second impeller 12 can be connected via the protrusion 111, the recess 121, and the connecting shaft 30. At the same time, the elastic member 20 can provide a certain degree of elasticity in the connection, ensuring the stability and reliability of the two impeller assemblies during operation.

[0077] Combine Figures 1 to 8 As shown, a protrusion 111 is provided on the first hub of the first impeller 11, and a recess 121 is provided on the side of the second hub of the second impeller 12 close to the first impeller 11. A first connecting protrusion 1111 is formed on the side of the protrusion 111 away from the recess 121, and a second connecting protrusion 1211 is provided at the bottom of the recess 121. Part of the elastic member 20 is arranged along the circumference of the second connecting protrusion 1211. The first impeller 11 and the second impeller 12 are connected to the connecting shaft 30 or the output shaft 61 of the drive motor through the first connecting protrusion 1111 and the second connecting protrusion 1211. Specifically, the first connecting protrusion 1111 and the second connecting protrusion 1211 are coaxially arranged, and the first connecting protrusion 1111 and the second connecting protrusion 1211 are both provided with a through hole 13 for the output shaft 61 of the drive motor to pass through, so that the drive motor 60 drives the first impeller 11 and the second impeller 12 to rotate.

[0078] In another embodiment of the present application, the first connecting protrusion 1111 and the second connecting protrusion 1211 are both provided with a through hole 13 for the connecting bolt to pass through, and the output shaft 61 of the driving motor is provided with a connecting hole, and the first impeller 11 and the second impeller 12 are connected to the output shaft 61 of the driving motor through the connecting bolts, so as to realize the driving motor 60 driving the first impeller 11 and the second impeller 12 to rotate.

[0079] In a preferred embodiment of the present application, the protrusion 111 and the recessed portion 121 are integrally provided, and the recessed portion 121 and the second connecting protrusion 1211 are integrally provided, which improves the stability of the connection.

[0080] In another embodiment of the present application, the protrusion 111 and the recessed portion 121 are detachably provided, and the recessed portion 121 and the second connecting protrusion 1211 are detachably provided to facilitate subsequent maintenance and replacement.

[0081] In a preferred embodiment of the present application, the blades 100 of adjacent wind blade impellers 10 are staggered. In the same wind blade impeller 10, an avoidance channel 200 is formed between the blades 100 of adjacent wind blade impellers 10. When multiple wind blade impellers 10 are in the assembly position, the blades 100 of at least one wind blade impeller 10 can be at least partially located in the avoidance channel 200 of the adjacent wind blade impeller 10. When multiple wind blade impellers 10 are in the working position, the blades 100 of each wind blade impeller 10 are at least partially located outside the avoidance channel 200 of the wind blade impeller 10 adjacent to it.

[0082] Combine Figure 8 and Figure 9 As shown, when the plurality of impellers 10 are in the position to be assembled, the blades 100 of one of the adjacent impellers 10 can be located in the avoidance channel 200 of another of the adjacent impellers 10. This helps to reduce the contact between the blades during the assembly process and reduces the difficulty of assembly. When the plurality of impellers 10 are in the working position, the blades 100 of each impeller 10 are arranged away from the avoidance channel 200 of the adjacent impeller 10 to ensure that the blades 100 of each impeller 10 can work in the best state and improve the air outlet efficiency. The staggered blade layout can facilitate the embedding and storage between adjacent impellers 10, while increasing the size of the wind assembly and ensuring the convenience of the blade assembly during installation, making the blade assembly more practical.

[0083] Furthermore, at least one wind impeller 10 includes a first connecting member 101, a second connecting member 102 and a support member 103, wherein the second connecting member 102 is arranged along the circumference of the first connecting member 101; the support member 103 is connected to each second connecting member 102, the blade 100 is arranged on the support member 103, and the protrusion 111 is arranged on the surface of the first connecting member 101 on the side close to the second impeller 12. This arrangement improves the connection stability of the blade 100. Among them, the first connecting member 101, the second connecting member 102 and the support member 103 can form a conventional hub structure (such as Figure 3 The upper part shows that it can also form a radial structure with a concave center (as shown in the figure). Figure 3 As shown in the lower half), as long as the matching assembly can be achieved.

[0084] Combine Figure 8As shown in the lower half, in one embodiment of the present application, the first impeller 11 includes a first connecting member 101, a second connecting member 102 and a support member 103, and the second connecting member 102 is arranged along the circumference of the first connecting member 101; the support member 103 is connected to each second connecting member 102. At this time, the first connecting member 101, the second connecting member 102 and the support member 103 form a radial structure with a depression in the middle, and the blade 100 is arranged on the support member 103. This arrangement improves the connection stability of the blade 100 and facilitates the assembly of the first impeller 11 and the adjacent wind blade impeller 10.

[0085] Combine Figure 8 As shown in the upper part, in one embodiment of the present application, the second impeller 12 includes a first connecting member 101, a second connecting member 102 and a support member 103. There are multiple second connecting members 102, and the multiple second connecting members 102 are arranged at intervals along the circumference of the first connecting member 101. At this time, the first connecting member 101, the second connecting member 102 and the support member 103 form a conventional hub structure, and the blade 100 is arranged on the support member 103. This arrangement improves the connection stability and wind outlet stability of the blade 100.

[0086] In an exemplary embodiment of the present application, the elastic member 20 is a spring. In other embodiments of the present application, the elastic member 20 can also be configured as a rubber member, a polyurethane elastomer, a plastic elastomer, or a metal elastic member, as long as it can provide elastic force for resetting the impeller 10.

[0087] In another embodiment of the present application, a ceiling-mounted appliance is provided, including a fan assembly, wherein the fan assembly is the fan assembly of the above embodiment. The ceiling-mounted appliance includes, but is not limited to, kitchen air conditioners, non-kitchen air conditioners, bathroom heaters, fresh air blowers, ventilation fans, and the like.

[0088] In a specific embodiment of the present application, a ceiling-mounted appliance includes a housing assembly, the housing assembly including a housing 40, an air duct 41 including a volute air duct 411, wherein the fan assembly is located within the volute air duct 411 within the housing. This arrangement increases the airflow of the air duct 41, thereby improving the air output performance of the ceiling-mounted appliance.

[0089] Combine Figure 10 As shown, in a specific embodiment of the present application, a ceiling-mounted appliance includes a housing assembly, which includes a housing 40 having a duct enclosure for forming an air duct 41. Duct 41 includes a volute duct 411 and a supply duct 412, which are interconnected. The fan assembly is located within volute duct 411 within the housing. This arrangement increases the airflow of duct 41, thereby improving the airflow performance of the ceiling-mounted appliance.

[0090] Combine Figures 10 and 11As shown, in a specific embodiment of the present application, the air duct enclosure includes a volute side panel 42 and a spliced ​​volute 50 and an air supply side panel 4120 of the air supply duct 412. The volute side panel 42 is located in the shell 40, and the volute side panel 42 is provided with an opening 401. In this embodiment, an opening 401 is formed between the volute side panel 42 and the air supply side panel 4120, that is, the opening 401 on the volute side panel 42 is arranged adjacent to the air supply side panel 4120, and the volute side panel 42 is arranged in the shell 40. The spliced ​​volute 50 has a blocking position for blocking at least part of the opening 401, and the spliced ​​volute 50 has an avoidance position away from the opening 401 or a storage position stored in the shell 40. When the spliced ​​volute 50 is in the blocking position, at least part of the spliced ​​volute 50 is protruding from the outer surface of the shell 40 along the width direction of the shell 40, so that the spliced ​​volute 50 and the volute side panel 42 are arranged to form a volute air duct 411. This arrangement increases the air output of the volute air duct 411, so that a fan blade assembly with a larger diameter can be arranged in the volute air duct 411, thereby improving the air output performance of the ceiling appliance.

[0091] In another embodiment of the present application, the splicing volute 50 is detachably connected to the shell 40. When the splicing volute 50 is connected to the shell 40, the splicing volute 50 is in a blocking position. After the splicing volute 50 is disassembled from the shell 40, the splicing volute 50 is in an avoidance position. Among them, the splicing volute 50 and the shell 40 can be set to, but not limited to, a sliding connection, a magnetic connection, a rotatable connection, and a snap connection, etc., as long as the detachable technical effect can be achieved, the installation of the ceiling appliance can be facilitated. In other embodiments, the splicing volute 50 can also be stored in the shell 40 and be in a storage position.

[0092] In another embodiment of the present application, a bathroom heater is provided, including a shell assembly and a fan blade assembly. The shell assembly includes a shell 40. The shell 40 has a duct enclosure for forming an air duct 41. Part of the duct enclosure is protruding from the outer surface of the shell 40 along the length direction or width direction of the shell 40. The air duct 41 includes a volute air duct 411 and an air supply air duct 412. The volute air duct 411 and the air supply air duct 412 are connected, wherein the fan blade assembly is located in the volute air duct 411 in the shell.

[0093] Combine Figures 10 and 11As shown, in a specific embodiment of the present application, the air duct enclosure includes a volute side plate 42 and a spliced ​​volute 50 and an air supply side plate 4120 of the air supply duct 412, the air duct enclosure includes a volute side plate 42 and a spliced ​​volute 50 and an air supply side plate 4120 of the air supply duct 412, the volute side plate 42 is located in the shell 40, and the volute side plate 42 is provided with an opening 401. In this embodiment, an opening 401 is formed between the volute side plate 42 and the air supply side plate 4120, that is, the opening 401 on the volute side plate 42. 01 is arranged adjacent to the air supply side plate 4120, the volute side plate 42 is arranged in the shell 40, the spliced ​​volute 50 has a blocking position for blocking at least part of the opening 401, and the spliced ​​volute 50 has a avoidance position away from the opening 401 or a storage position stored in the shell 40. When the spliced ​​volute 50 is in the blocking position, at least part of the spliced ​​volute 50 is protruding from the outer surface of the shell 40 along the width direction of the shell 40, so that the spliced ​​volute 50 and the volute side plate 42 are arranged to form a volute air duct 411.

[0094] Preferably, the splicing volute 50 is detachably connected to the shell 40. When the splicing volute 50 is connected to the shell 40, the splicing volute 50 is in a blocking position. After the splicing volute 50 is disassembled from the shell 40, the splicing volute 50 is in an avoidance position. Among them, the splicing volute 50 and the shell 40 can be set to, but not limited to, a sliding connection, a magnetic connection, a rotatable connection, and a snap connection, etc., as long as the detachable technical effect can be achieved, the installation of the bathroom heater can be facilitated. In other embodiments, the splicing volute 50 can also be stored in the shell 40 and be in a storage position.

[0095] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0096] When installing the fan blade impeller 10, multiple fan blade impellers 10 can be adjusted to an axially retracted assembly position to adapt to the installation space of national standard parts. After the installation is completed, multiple fan blade impellers 10 can be adjusted to an axially expanded working position to improve the wind output performance of the fan blade assembly. While increasing the size of the wind assembly, the convenience of the fan blade assembly during installation is ensured, which solves the problem of poor wind output performance caused by limited volute size in the prior art and increases the practicality of the fan blade assembly.

[0097] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0098] In addition to the above, it should be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like in this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as being included in at least one embodiment generally described in 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 conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also fall within the scope of the present invention.

[0099] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0100] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fan blade assembly, characterized in that: include: A fan blade impeller (10), wherein the fan blade impeller (10) is multiple, the multiple fan blade impellers (10) are arranged along the axial direction of one of the fan blade impellers (10), and at least one of the fan blade impellers (10) is adjustably arranged relative to the axial direction of the other fan blade impellers (10), so that the multiple fan blade impellers (10) have an axially retracted position to be assembled, and the multiple fan blade impellers (10) have an axially extended working position.

2. The fan blade assembly according to claim 1, characterized in that: The fan blade assembly includes: At least one of the plurality of wind blade impellers (10) is movably arranged along the axial direction relative to the other wind blade impellers (10), wherein at least one of the wind blade impellers (10) can be moved to the to-be-assembled position close to the other wind blade impellers (10) along a first direction of the axial direction, and at least one of the wind blade impellers (10) can be moved to the working position along a second direction opposite to the first direction, wherein when at least one of the wind blade impellers (10) is located at the to-be-assembled position, the axial height of the plurality of wind blade impellers (10) is less than the axial height when the plurality of wind blade impellers (10) are located at the working position.

3. The fan blade assembly according to claim 2, characterized in that: The fan blade assembly includes: A driving motor (60) is provided, wherein a plurality of the fan blade impellers (10) are arranged along the axial direction of an output shaft (61) of the driving motor (60), and at least one of the plurality of fan blade impellers (10) is slidably moved to the to-be-assembled position and the working position relative to the other fan blade impellers (10) along the axial direction of the output shaft (61).

4. The fan blade assembly according to any one of claims 1 to 3, characterized in that: The fan blade assembly includes: An elastic member (20), the elastic member (20) being arranged between two adjacent fan blade wheels (10), the elastic member (20) having an initial state and a compressed state, wherein when a plurality of the fan blade wheels (10) are in the to-be-assembled position, the elastic member (20) is in the compressed state, and when a plurality of the fan blade wheels (10) are in the working position, the elastic member (20) is reset to the initial state.

5. The fan blade assembly according to claim 4, characterized in that: At least one of the two adjacent fan impellers (10) is provided with a placement groove, and the elastic member (20) is at least partially located in the placement groove.

6. The fan blade assembly according to claim 4, characterized in that: Two adjacent fan impellers (10) are connected via a connecting shaft (30) or an output shaft (61), and the elastic member (20) is arranged along the circumference of the connecting shaft (30) or the output shaft (61).

7. The fan blade assembly according to claim 6, characterized in that: Two adjacent fan impellers (10) are connected via the connecting shaft (30), and the elastic member (20) is arranged along the circumference of the connecting shaft (30), wherein the connecting shaft (30) is connected to the output shaft (61).

8. The fan blade assembly according to claim 6 or 7, characterized in that: Each of the fan impellers (10) is provided with a through hole (13) for the output shaft (61) or the connecting shaft (30) to pass through. At least one of the two adjacent fan impellers (10) is provided with a recessed portion (121), and the elastic member (20) is at least partially disposed in the recessed portion (121), or, At least one of the two adjacent fan impellers (10) is provided with a raised portion (111), and the elastic member (20) is connected to the raised portion (111).

9. The fan blade assembly according to claim 8, characterized in that: One of the two adjacent fan blade impellers (10) is provided with the raised portion (111), and the other of the two adjacent fan blade impellers (10) is provided with the recessed portion (121); when the plurality of fan blade impellers (10) are in the position to be assembled, at least part of the raised portion (111) extends into the recessed portion (121).

10. The fan blade assembly according to claim 6 or 7, characterized in that: The plurality of wind blade impellers (10) include: a first impeller (11), wherein a first boss is provided on a first hub of the first impeller (11), and a through hole (13) is provided on the first boss for the connecting shaft (30) or the output shaft (61) to pass through; A second impeller (12), wherein the first impeller (11) and the second impeller (12) are arranged adjacent to each other, a second boss is provided on a side of a second hub of the second impeller (12) close to the first impeller (11), and a through hole (13) is provided on the second boss for the connecting shaft (30) or the output shaft (61) to pass through.

11. The fan blade assembly according to claim 1 or 2, characterized in that: The blades (100) of the adjacent impellers (10) are arranged in a staggered manner. In the same impeller (10), an avoidance channel (200) is formed between the blades (100) of the adjacent impellers (10). When a plurality of impellers (10) are in the ready-to-assemble position, the blades (100) of at least one impeller (10) can be at least partially located in the avoidance channel (200) of the impeller (10) adjacent thereto. When the impeller (10) is in the working position, the blades (100) of the impeller (10) are at least partially located outside the avoidance channel (200) of the impeller (10) adjacent thereto.

12. The fan blade assembly according to claim 4, characterized in that: The elastic member (20) is a spring.

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

14. The ceiling appliance according to claim 13, characterized in that: The ceiling appliance includes a housing assembly, and the housing assembly includes: A housing (40) is provided with an air duct (41) in the housing (40), the air duct (41) comprising a volute air duct (411), wherein the fan blade assembly is located in the volute air duct (411) in the housing (40).

15. The ceiling-mounted electrical appliance according to claim 14, characterized in that: The ceiling electrical appliance includes A volute side plate (42) and a spliced ​​volute (50), wherein the volute side plate (42) is located in the shell (40), the volute side plate (42) is provided with an opening (401), the spliced ​​volute (50) has a blocking position for blocking at least part of the opening (401), and the spliced ​​volute (50) has a avoiding position away from the opening (401) or a storage position stored in the shell (40), when the spliced ​​volute (50) is in the blocking position, at least part of the spliced ​​volute (50) protrudes from the shell (40), so that the spliced ​​volute (50) and the volute side plate (42) are surrounded to form the volute air duct (411).

16. The ceiling-mounted electrical appliance according to claim 15, characterized in that: The spliced ​​volute (50) is detachably connected to the housing (40); when the spliced ​​volute (50) is connected to the housing (40), the spliced ​​volute (50) is in the blocking position.

Images