Volute assembly and duct type air conditioner

Abstract

The invention discloses a volute assembly and a duct type air conditioner, and the volute assembly comprises a movable volute which is rotatably arranged along the axis of the movable volute, and the movable volute is provided with a plurality of transmission matching structures which are arranged at intervals in the axis direction; the driving part is used for providing power; and the transmission assembly is in driving connection with the driving part, and the transmission assembly is in driving connection with all the transmission matching structures at the same time. According to the volute assembly and the wind pipe machine, the problem that in the prior art, a movable volute of a wind pipe machine swings in the rotating process is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a volute assembly and a duct air conditioner. Background Art

[0002] Duct air conditioner is the abbreviation of hidden air duct air conditioner, which can also be called air conditioner duct air conditioner or duct air conditioner. Duct air conditioner is cheap, easy to maintain, suitable for Chinese people's air conditioning usage habits, and widely used. Duct indoor units installed on the wall above the room or on the ceiling of the room mostly have side air outlet. When heating, the hot air density is low, and the side air outlet makes the hot air flow float up and cannot blow to the users in the lower area of ​​the room. The temperature distribution in the room is uneven, causing the problem of hot top and cold bottom, and the experience is poor.

[0003] The prior art provides a method for switching the airflow direction of the indoor unit of the air conditioner to adjust the air outlet direction of the indoor unit, mainly by changing the airflow direction through a rotatable movable volute. The housing has a heating air outlet and a cooling air outlet; the movable volute can rotate relative to the fixed volute to change the air outlet direction of the fan, so that the cooling and heating modes can have different inlets and outlets. When cooling, the air enters from the heating air outlet and exits from the cooling air outlet (generally side outlet); when heating, the air enters from the cooling air outlet and exits from the heating air outlet (generally bottom outlet), thereby greatly alleviating the problem of temperature distribution in the room, with the upper part being hot and the lower part being cold.

[0004] However, since a single driving mechanism and a simple transmission mechanism are used in the driving assembly of the movable volute, the movable volute swings during the rotation process.

[0005] In the prior art, the movable volute of the duct fan has the problem of swinging during the rotation process. Summary of the invention

[0006] The embodiments of the present invention provide a volute assembly and a duct dryer to solve the problem that the movable volute of the duct dryer in the prior art swings during the rotation process.

[0007] To achieve the above-mentioned purpose, the present invention provides a volute assembly, including: a movable volute, which is rotatably arranged along its own axis, and the movable volute is provided with a plurality of transmission matching structures arranged at intervals along the axial direction; a driving component for providing power; a transmission assembly, which is drivingly connected to the driving component, and the transmission assembly is drivingly connected to all the transmission matching structures at the same time.

[0008] Furthermore, the transmission assembly includes a transmission rod and multiple transmission parts, and the multiple transmission parts are arranged on the transmission rod at intervals. Each transmission part is arranged in a one-to-one correspondence with the transmission matching structure and is transmission-connected, and all the transmission parts rotate synchronously along the axis of the transmission rod.

[0009] Furthermore, the transmission matching structure is a rack, the transmission member is a transmission gear, and all the transmission gears are coaxial.

[0010] Furthermore, the driving component is a stepping motor; the transmission assembly also includes a driving gear, the stepping motor is directly drivingly connected to the driving gear, and the driving gear is meshed with any of the transmission gears.

[0011] Furthermore, the number of the racks is at least two, wherein the two racks are respectively arranged at two ends of the movable volute in the axial direction.

[0012] Furthermore, the movable volute includes two detachable sub-housings, and the rack is provided at the axial end of the sub-housing corresponding to the movable volute.

[0013] Furthermore, a plurality of snap-fitting buckle assemblies are circumferentially arranged at the connection of the two sub-housings, and the two sub-housings can be disassembled and assembled along the axial direction of the movable volute.

[0014] Furthermore, a limit plate is fixedly connected to the transmission rod, the limit plate is arranged corresponding to the rack, the limit plate is arranged on one side of the rack along the axial direction of the movable volute, and the limit plate can stop the rack.

[0015] Furthermore, the limiting plate is an annular plate, the limiting plate is connected to the side surface of the transmission gear, and the outer contour diameter of the limiting plate is greater than or equal to the top circle diameter of the transmission gear.

[0016] Furthermore, the limiting plate and the transmission gear are integrally formed.

[0017] Furthermore, the transmission assembly is limitedly installed in a drive box, and the drive box is fixedly connected to the assembly structure.

[0018] Furthermore, the transmission member and the transmission matching structure form a chain transmission matching or a belt transmission matching.

[0019] According to another aspect of the present invention, a duct dryer is provided, comprising the above-mentioned volute assembly.

[0020] Furthermore, the duct dryer includes a fixed volute matched with the movable volute, the movable volute is rotatable relative to the fixed volute, and the duct dryer has a side air outlet or a bottom air outlet mode.

[0021] In the volute assembly of the present invention, a plurality of transmission matching structures are arranged on the movable volute, and all the transmission matching structures are driven to rotate simultaneously through the transmission assembly to drive the movable volute to rotate. Such structural matching ensures the overall synchronization of the movable volute during rotation, so that the corresponding parts of each transmission matching structure can rotate synchronously, eliminating the local rotation hysteresis of the movable volute, greatly reducing the swing of the movable volute during rotation, and increasing the operating stability of the movable volute. Moreover, the movable volute with greatly reduced swinging in the structure of the duct machine minimizes the risk of structural interference and friction, reduces operating noise, ensures the smooth operation of the duct machine, and improves structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional diagram of a volute assembly according to an embodiment of the present invention;

[0023] Figure 2 is a side view of a volute assembly according to an embodiment of the present invention;

[0024] Figure 3 is a partial structural schematic diagram of a transmission assembly of a volute assembly according to an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of the structural coordination of the transmission gear and the limiting plate of the volute assembly in an embodiment of the present invention; and

[0026] Figure 5 It is a schematic diagram of the structural coordination between the transmission assembly and the drive box of the volute assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0028] See also Figures 1 to 5 As shown, according to an embodiment of the present invention, a volute assembly is provided, the volute assembly includes a movable volute 10, a driving component 20 and a transmission assembly 30, the movable volute 10 is rotatably arranged along its own axis, and the movable volute 10 is provided with a plurality of transmission matching structures arranged at intervals along the axis direction; the driving component 20 is used to provide power, and the driving component 20 can drive the movable volute 10 to rotate. The transmission assembly 30 is drivingly connected to the driving component 20, and the transmission assembly 30 is drivingly connected to all the transmission matching structures at the same time.

[0029] In the volute assembly of the present invention, a plurality of transmission matching structures are arranged on the movable volute, and all the transmission matching structures are driven to rotate simultaneously through the transmission assembly to drive the movable volute to rotate. Such structural matching ensures the overall synchronization of the movable volute during rotation, so that the corresponding parts of each transmission matching structure can rotate synchronously, eliminating the local rotation hysteresis of the movable volute, greatly reducing the swing of the movable volute during rotation, and increasing the operating stability of the movable volute. Moreover, the movable volute with greatly reduced swinging in the structure of the duct machine minimizes the risk of structural interference and friction, reduces operating noise, ensures the smooth operation of the duct machine, and improves structural stability.

[0030] It should be noted that the transmission matching structure is better when it is set at the head and tail ends of the movable volute, and the number of transmission matching structures should not be too many, otherwise the structural weight and matching complexity will be increased, which is not conducive to structural simplification and service life. The transmission matching structure can have various forms, generally meeting the structural strength and being able to drive the movable volute to rotate.

[0031] Preferably, the transmission assembly 30 includes a transmission rod 31 and a plurality of transmission parts, wherein the plurality of transmission parts are arranged at intervals on the transmission rod 31, each of the transmission parts is arranged in one-to-one correspondence with the transmission matching structure and is transmission-connected, and all the transmission parts rotate synchronously along the axis of the transmission rod 31.

[0032] The cooperation between the transmission rod 31 and the multiple transmission parts can realize the synchronous rotation of all the transmission parts simply and efficiently. The transmission rod has the advantages of low structural weight, low cost, high structural strength and stable structure. The transmission rod 31 can be provided with weight-reducing holes and hollow structures according to the specific needs of structural strength.

[0033] Combination Figures 1 to 3 As shown, the transmission matching structure in this embodiment is a rack 11, the transmission member is a transmission gear 32, and all the transmission gears 32 are coaxial.

[0034] The rack 11 is laid along the circumference of the movable volute. Since the rotation angle of the movable volute is limited, the length of the rack is limited. Under the rotation of the transmission gear 32, the rack 11 meshed with the transmission gear 32 moves and drives the movable volute to rotate along the axis. The coaxiality of all the transmission gears 32 can keep the moving stroke of each rack 11 the same, so that the rotation of the movable volute is synchronized at the rack position, effectively improving the smoothness of the movable volute and greatly reducing the swing of the movable volute. The meshing of the rack and the transmission gear is very suitable for the drive of the movable volute, with stable transmission, high structural strength, not easy to damage, and stable and reliable structure.

[0035] See also Figure 1The driving component 20 is a stepper motor; the stepper motor can rotate in both directions, and cooperates with the transmission gear and the rack to make the movable volute reciprocate, thereby realizing the up and down reverse wind function of the air duct machine. The transmission assembly 30 also includes a driving gear 33, the stepper motor is directly connected to the driving gear 33, and the driving gear 33 is meshed with any of the transmission gears 32.

[0036] The output shaft of the stepper motor is coaxial with the driving gear and rotates synchronously. When the driving gear rotates, it meshes with the matching transmission gear to drive all the transmission gears on the transmission rod 31. The above structural coordination is simple and efficient, with high structural stability, and is not prone to problems such as tripping or failure to transmit.

[0037] Preferably, the number of the racks 11 is at least two, wherein the two racks 11 are respectively arranged at two ends of the movable volute 10 in the axial direction.

[0038] The two racks are respectively arranged at the head and tail ends of the movable volute, so that the rotation of the two ends of the movable volute can be kept synchronous, so that the movable volute can greatly reduce the swing of the movable volute during rotation, and the overall stability is guaranteed to the maximum extent, so that the movable volute can rotate within a reasonable and preset track.

[0039] In this embodiment, the movable volute 10 includes two detachable sub-housings 12 , and the racks 11 are provided at the axial ends of the sub-housings 12 corresponding to the movable volute 10 .

[0040] Combination Figure 1 and Figure 2 As shown, the movable volute 10 is composed of two sub-shells 12. Such a structural composition enables the duct machine to be disassembled layer by layer in the axial direction during disassembly, thereby reducing the difficulty of maintenance, preventing damage to components during maintenance, and improving maintenance efficiency.

[0041] Preferably, a plurality of snap-fitting buckle combinations are circumferentially arranged at the connection between the two sub-housings 12 , and the two sub-housings 12 can be disassembled and assembled along the axial direction of the movable volute 10 .

[0042] The buckle combination is a buckle and a slot, which can be staggered on the two sub-shells. The snap-fit ​​is conducive to quick installation, which makes it convenient for maintenance personnel to install the two sub-shells in the dimly lit internal environment of the duct machine, and convenient for maintenance personnel to quickly splice them when they cannot see completely.

[0043] See also Figure 1 , Figure 3 and Figure 4A limit plate 34 is fixedly connected to the transmission rod 31 , and the limit plate 34 is arranged corresponding to the rack 11 . The limit plate 34 is arranged on one side of the rack 11 along the axial direction of the movable volute 10 , and the limit plate 34 can stop the rack 11 .

[0044] The position of the limit plate 34 corresponds to the rack 11. When the movable volute 10 undergoes a certain axial displacement, the limit plate 34 contacts the surface of one side of the rack to stop the rack and the movable volute where the rack is located, preventing the movable volute from continuing to move axially. The position and structural coordination of the limit plate 34 prevents the movable volute from producing a large axial displacement or axial movement during the rotation process, ensuring that the movable volute always rotates within the specified track, avoiding structural interference or friction, improving operational stability, and ensuring long-term stable operation of the structure.

[0045] In this embodiment, the limit plate 34 is an annular plate, the limit plate 34 is connected to the side of the transmission gear 32, and the outer contour diameter of the limit plate 34 is greater than or equal to the diameter of the tooth top circle of the transmission gear 32. The shape and size relationship of the limit plate can fully meet the function of stopping the rack.

[0046] The limit plate 34 is connected and matched with the transmission gear 32, which makes full use of the structural space of the transmission gear and reduces the space occupancy rate. At the same time, the relationship between the limit plate and the rack is integrated, so that the limit plate and the transmission gear are concentrated in one position, so that the limit and transmission are formed in one position, and the structure is compact and reliable.

[0047] Preferably, the limiting plate 34 and the transmission gear 32 are integrally formed.

[0048] In order to further improve the structural reliability, the limit plate and the transmission gear are made into an integrated structure, so that the stress of transmission and limit are all on one structure, avoiding the problem of connection separation and structural failure that may occur due to stress concentration at the connection point. Integrated molding is also conducive to reducing production costs, reducing structural complexity, and reducing the number of parts.

[0049] See also Figure 5 The transmission assembly 30 is limitedly installed in the drive box 40, and the drive box 40 is fixedly connected to the assembly structure.

[0050] The drive box is fixedly connected to the assembly structure, generally a reliable component inside the duct machine, such as a fixed volute. The drive box remains fixed and the transmission component limitedly installed in the drive box will not produce a displacement exceeding the specified value, so that the transmission component can always maintain a stable transmission cooperation relationship with the movable volute, thereby reducing the swing of the movable volute and improving the running stability of the movable volute.

[0051] In other embodiments not shown in the figures, the difference between the volute assembly and the above-mentioned embodiments mainly lies in the specific structural form of the transmission member and the transmission matching structure. In other embodiments, the transmission member and the transmission matching structure form a chain transmission matching or a belt transmission matching.

[0052] Chain drive and belt drive are also stable and efficient transmission mechanisms that can be used in the rotation of the movable volute. Chain drive and belt drive can be configured accordingly based on the basic structure.

[0053] The present invention provides an embodiment of a duct air conditioner, which includes the volute assembly mentioned above.

[0054] Preferably, the duct dryer comprises a fixed volute cooperating with the movable volute, the movable volute is rotatable relative to the fixed volute, and the duct dryer has a side air outlet or a bottom air outlet mode.

[0055] The duct dryer of this embodiment solves the problem of swinging of the movable volute during rotation in the prior art, and the rotation of the movable volute is more stable and more reliable.

[0056] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] 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 numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0058] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A volute assembly, characterized in that: include: A movable volute (10) is rotatably arranged along its own axis, and the movable volute (10) is provided with a plurality of transmission matching structures arranged at intervals along the axis direction; A driving component (20) for providing power; The transmission assembly (30) is drivingly connected to the driving component (20), and the transmission assembly (30) is drivingly connected to all the transmission matching structures at the same time.

2. The volute assembly according to claim 1, characterized in that: The transmission assembly (30) comprises a transmission rod (31) and a plurality of transmission members, wherein the plurality of transmission members are arranged at intervals on the transmission rod (31), each of the transmission members is arranged in one-to-one correspondence with the transmission matching structure and is transmission-connected, and all of the transmission members rotate synchronously along the axis of the transmission rod (31).

3. The volute assembly according to claim 2, characterized in that: The transmission matching structure is a rack (11), the transmission member is a transmission gear (32), and all the transmission gears (32) are coaxial.

4. The volute assembly according to claim 3, characterized in that: The driving component (20) is a stepping motor; The transmission assembly (30) further comprises a driving gear (33), the stepping motor is directly drivingly connected to the driving gear (33), and the driving gear (33) is meshed with any one of the transmission gears (32).

5. The volute assembly according to claim 3, characterized in that: The number of the racks (11) is at least two, wherein the two racks (11) are respectively arranged at two axial ends of the movable volute (10).

6. The volute assembly according to claim 5, characterized in that: The movable volute (10) comprises two detachable sub-housings (12), and the racks (11) are arranged on the axial ends of the sub-housings (12) corresponding to the movable volute (10).

7. The volute assembly according to claim 6, characterized in that: A plurality of snap-fitting buckle assemblies are arranged along the circumferential direction at the connection between the two sub-housings (12); the two sub-housings (12) can be disassembled and assembled along the axial direction of the movable volute (10).

8. The volute assembly according to claim 3, characterized in that: The transmission rod (31) is fixedly connected to a limit plate (34), the limit plate (34) being arranged corresponding to the rack (11), the limit plate (34) being arranged on one side of the rack (11) along the axial direction of the movable volute (10), and the limit plate (34) being capable of stopping the rack (11).

9. The volute assembly according to claim 8, characterized in that: The limiting plate (34) is an annular plate, the limiting plate (34) is connected to the side surface of the transmission gear (32), and the outer contour diameter of the limiting plate (34) is greater than or equal to the tooth top circle diameter of the transmission gear (32).

10. The volute assembly according to claim 9, characterized in that: The limiting plate (34) and the transmission gear (32) are integrally formed.

11. The volute assembly according to claim 8, characterized in that: The transmission assembly (30) is limitedly installed in a drive box (40), and the drive box (40) is fixedly connected to the assembly structure.

12. The volute assembly according to claim 2, characterized in that: The transmission member and the transmission matching structure form a chain transmission matching or a belt transmission matching.

13. A duct machine, characterized in that: A volute assembly comprising the volute assembly described in any one of claims 1 to 12.

14. The air duct machine according to claim 13, characterized in that: The duct dryer comprises a fixed volute matched with the movable volute, the movable volute is rotatable relative to the fixed volute, and the duct dryer has a side air outlet or a bottom air outlet mode.

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