Multi-air-duct module and large-air-volume intelligent blower

Abstract

A plurality of groups of motors are arranged in a motor assembly, each group of motors is correspondingly provided with a group of fluid channels, only one group of fluid channels are communicated with an air outlet channel, and valves are arranged between other fluid channels and the air outlet channel. Opening and closing of other fluid channels are controlled by the valve, so that the flow speed of fluid in the air outlet channel is increased, control is more convenient, and the flow speed of the fluid in the air outlet channel is higher. The valve is normally closed through attraction of the magnet, the valve is in a closed and closed state by being matched with the limiting structure, when the motor works, fluid blows the valve to be opened, fluid in other fluid can be blown to the air outlet channel, the valve is closed under the action of the magnet after the motor is closed, and operation is more convenient. Meanwhile, the motor set is arranged to be detachable, so that the motor set can be conveniently detached to clean broken hair and dust on the motor set, the service life of the hair drier is prolonged, and the wind strength is improved.

Description

Technical Field

[0001] This utility model relates to the field of hair dryers, and in particular to multi-channel modules and high-volume intelligent hair dryers. Background Technology

[0002] Hair dryers, as a common household appliance, primarily use a motor-driven fan to generate airflow, combined with a heating element to output hot air for quickly drying hair or surfaces. Most traditional hair dryers on the market currently employ a single-motor drive structure, meaning only one motor works with the impeller, with the motor's rotation driving the impeller to generate unidirectional airflow. However, this design has the following technical drawbacks in practical use:

[0003] Insufficient airflow and energy efficiency issues: The single-motor structure is limited by motor power and impeller size, resulting in a smaller airflow, especially prone to noise and excessive energy consumption during high-power operation. To improve hair drying efficiency, users often need to extend the usage time or increase the temperature, which may cause heat damage to the hair.

[0004] Heat dissipation and dust accumulation hazards: Current hair dryers typically have their motors fixed inside the casing, lacking an effective isolation structure between the air inlet and the motor. During use, hair clippings, dust, and other foreign objects can easily enter the casing with the airflow and adhere to the motor surface. Long-term accumulation can lead to decreased motor heat dissipation performance, reduced speed, and consequently, affected airflow stability. In severe cases, this can cause motor overheating or even malfunction, posing a safety hazard. Furthermore, because the motor and casing are integrated, users cannot directly clean the foreign objects adhering to the motor; disassembly is required for maintenance, which is complex and can easily damage internal components.

[0005] Chinese Patent Publication No. CN222149288U discloses a hair dryer with a novel noise-reducing air intake structure, comprising an air intake shroud, a motor, and a housing. The air intake shroud, which has an end and a side, is arranged around the housing housing containing the motor. A platform with air intake holes is provided at the connection between the side and the housing housing containing the motor. This platform alters the fluid direction and noise propagation direction at the air intake, and the platform has an air layer cavity inside. This method significantly reduces the wind noise at the air intake, solving the technical problem of excessive wind noise at the air intake and high operating noise caused by the radial propagation of noise in existing technologies. It offers the benefits of low wind noise and a better user experience. The hair dryer described in this patent only has one motor, which generates insufficient airflow to achieve a large air volume. Utility Model Content

[0006] The technical problem this invention aims to solve is that existing hair dryers mostly use a single-motor drive structure, which has insufficient airflow and low energy efficiency, and cannot provide a large flow rate or volume of fluid. To address these shortcomings of the prior art, this invention provides a multi-channel module and a high-airflow intelligent hair dryer.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A multi-duct intelligent hair dryer with high airflow is constructed, including a housing. The lower part of the housing forms a handle, and a control board is installed inside the handle. A connecting line connected to the control board is provided at the end of the handle. The upper part of the housing is hollow, with an air inlet channel on one side and an air outlet channel on the other side. A motor assembly is installed in the hollow part. The motor assembly has a fluid channel communicating with the air inlet channel and the air outlet channel. The fluid channel includes a first fluid channel and at least one set of second fluid channels. A motor is installed in both the first and second fluid channels to generate fluid in the first and second fluid channels. The first fluid channel is connected to the air outlet channel. A valve is provided between the second fluid channel and the air outlet channel. The valve opens when fluid flows in the second fluid channel and closes when there is no fluid flow.

[0009] Preferably, the motor assembly includes a motor housing, the fluid channel is placed inside the motor housing, and at least one set of isolation plates is provided inside the motor housing. The isolation plates divide the fluid channel into a first fluid channel and a second fluid channel. One end of the fluid channel forms a fluid inlet that communicates with the air inlet channel, and the other end of the fluid channel forms a fluid outlet that communicates with the air outlet channel.

[0010] Preferably, the motor housing is provided with a shaft hole, the valve includes a fluid baffle, the fluid baffle is provided with a shaft, and the fluid baffle rotates in the second fluid channel through the shaft to open or close the second fluid channel.

[0011] Preferably, a first magnet is provided inside the motor housing, and a second magnet is provided on the side of the fluid baffle corresponding to the first magnet. The first magnet and the second magnet repel or attract each other. When no fluid flow is formed in the second fluid channel, the repulsion or attraction between the first magnet and the second magnet pushes the fluid baffle to close the second fluid channel. When fluid flow is formed in the second fluid channel, the fluid flow pushes the fluid baffle to open the second fluid channel.

[0012] Alternatively, the fluid baffle can be connected to the housing via an elastic element. When fluid flow is formed in the second fluid channel, the fluid flow pushes the fluid baffle to open the second fluid channel, and the elastic element undergoes elastic deformation. When no fluid flow is formed in the second fluid channel, the elastic element resets its elastic deformation and pulls the fluid baffle to close the second fluid channel.

[0013] Preferably, the motor housing is provided with a first limiting block and a second limiting block, and the fluid baffle is provided with a limiting groove corresponding to the first limiting block. When the first limiting block is placed in the limiting groove, the fluid baffle closes the second fluid channel. The fluid baffle moves between the first limiting block and the second limiting block, and a soft object is provided in the limiting groove.

[0014] Preferably, the first fluid channel and the second fluid channel are each provided with an independent fluid inlet, and the first fluid channel and the second fluid channel share a set of fluid outlets.

[0015] Preferably, the motors in the first fluid channel and the second fluid channel form a motor assembly, the motor housing is provided with a window corresponding to the motor assembly, the outer shell is provided with a disassembly window corresponding to the window, and the motor assembly is detachably connected to the motor housing at the window and the disassembly window.

[0016] Preferably, the air outlet is provided with a rear cover, the rear cover is provided with an isolation mesh, the air inlet is provided with a front cylinder, the front cylinder is provided with a filter mesh, the side of the outer shell is provided with an adjustment key and a light panel, the air outlet is provided with a heating component, and the handle is provided with a cold air key corresponding to the heating component.

[0017] Preferably, the handle is provided with a limiting plate, the outer shell is provided with a locking groove, and the front cylinder is provided with an outward protrusion corresponding to the locking groove.

[0018] Preferably, the handle is provided with a wire-locking post, the connecting line is provided with a wire-locking hole corresponding to the wire-locking post, and the connection point between the handle and the connecting line is provided with a wire sleeve.

[0019] The beneficial effects of this utility model are as follows: By setting multiple sets of motors within the motor assembly, each set of motors corresponds to a set of fluid channels. Only one set of fluid channels is connected to the air outlet channel, while valves are installed between the other fluid channels and the air outlet channel. These valves control the opening and closing of the other fluid channels, thereby enhancing the fluid flow rate in the air outlet channel, making control more convenient, and resulting in a stronger fluid flow rate in the air outlet channel. Normally, the valves are closed by magnetic attraction, and a limiting structure ensures the valves are in a relatively sealed state. When the motor is working, the fluid blows the valves open, allowing fluid from other fluid channels to be blown into the air outlet channel. After the motor is turned off, the valves close again under the action of the magnets, making operation more convenient. Furthermore, the motor assembly is designed to be detachable, facilitating the removal of hair and dust from the motor assembly, improving the lifespan and airflow strength of the hair dryer. A limiting plate inside the handle limits the control board, and a wire clamp secures the connecting wire, preventing short circuits caused by wire pulling and ensuring more stable wire conduction. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the axial three-dimensional structure of a hair dryer according to a preferred embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of another axial side of the hair dryer according to a preferred embodiment of the present invention;

[0023] Figure 3 This is an exploded view of a hair dryer according to a preferred embodiment of the present invention.

[0024] Figure 4 This is a cross-sectional structural diagram of a hair dryer according to a preferred embodiment of the present invention;

[0025] Figure 5 This is an exploded view of the motor assembly according to a preferred embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the valve-closed portion of the motor assembly according to a preferred embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the valve opening portion of the motor assembly in a preferred embodiment of the present invention;

[0028] Figure 8This is a schematic diagram of the axial structure of the valve according to a preferred embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the axial structure of the left movement housing according to a preferred embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the axial structure of the left outer shell of a preferred embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The preferred embodiment of this utility model includes a multi-duct module and a high-volume intelligent hair dryer; such as... Figures 1-4 As shown, the device includes a housing 10, with a handle 100 at the bottom. A control panel 50 is located inside the handle, and a connecting cable 60 at the end of the handle 100 connects to the control panel. This cable powers the hair dryer by connecting it to AC power. The upper part of the housing is hollow, with openings at both ends. One opening connects to a rear cover 40, and the other to a front cylinder 30. A mesh screen 400 is mounted on the rear cover 40, and a filter screen 300 is also mounted on the front cylinder 30. A motor assembly 20 is also located inside the upper part of the housing. This motor assembly creates a fluid channel within the hollow portion of the upper housing. When the motor assembly operates, air enters the fluid channel through the mesh screen on the rear cover and is then blown out through the filter screen of the front cylinder by the motor assembly. To facilitate adjustment of the control panel's operating mode, an adjustment key 502 connected to the control panel is located on the side of the upper part of the housing. Multiple adjustment keys can be configured to control the operating state of the motor assembly, thereby achieving fluid flow at different speeds. Meanwhile, a light panel 501 is provided on the side of the outer casing, which allows for easy observation of the hair dryer's operating status. To increase the temperature of the blown fluid, a heating element can be installed in the fluid channel. Under normal circumstances, the heating element will operate. If it is necessary to turn off the heating element, the cold air button 500 can be pressed to blow out cold air.

[0033] Specifically, such as Figures 4-9As shown, the motor assembly 20 includes a motor housing 200 and two sets of motors 201 disposed inside the motor housing. An isolation plate 205 is disposed in the middle of the motor housing, which divides the interior of the electrode housing into a first fluid channel 204 and a second fluid channel 205. Each set of fluid channels is provided with a set of motors. At the same time, due to the isolation plate, the first fluid channel and the second fluid channel have their own independent fluid inlet 2003, but the first fluid channel and the second fluid channel share a set of fluid outlets 2004. In this application, the first fluid channel 204 is configured as the main fluid channel, and the first fluid channel and the fluid outlet are on the same horizontal line. The second fluid channel 203 is a reinforcing fluid channel, and the second fluid channel and the fluid outlet are not on the same horizontal line. To control the opening and closing of the second fluid channel, a valve 202 is installed on it. When the valve is open, the fluid in the second fluid channel can be discharged through the fluid outlet. At this time, the fluid velocity at the fluid outlet is the sum of the fluid velocity in the first fluid channel and the fluid velocity in the second fluid channel. When the valve in the second fluid channel is closed, no fluid is generated in the second fluid channel, and the fluid velocity at the fluid outlet is equal to the fluid velocity in the first fluid channel. It should be noted that the first fluid channel and the fluid outlet may not be on the same horizontal line, and their vertical positions are not necessarily required. Even a slight misalignment of the first fluid channel and the fluid outlet in the vertical direction should fall within the scope of protection of this application. Furthermore, this application only describes the configuration of two sets of fluid channels. Multiple sets of second fluid channels can also be configured in the same way, and valves can be used to control the opening and closing of the corresponding fluid channels to enhance the fluid velocity at the fluid outlet; this should also fall within the scope of protection of this application. Simultaneously, corresponding to the control of multiple motors, multiple adjustment keys 502 are provided on the side of the housing 10 to correspond to different motors, so as to individually control the opening and closing of different motors, thereby enhancing the fluid flow rate at the fluid outlet.

[0034] Furthermore, such as Figures 4-9As shown, the motor housing 200 includes a left core housing 2000 and a right core housing 2001. Both the left and right core housings have a shaft hole 2007. The valve 202 includes a fluid baffle 2021 located at the connection between the second fluid channel and the fluid outlet. A shaft 2020 is located at the end of the fluid baffle corresponding to the shaft hole. The fluid baffle can rotate at the connection via the shaft to open or close the second fluid channel. Both the left and right core housings have a second magnet 2008. A first magnet 2023 is located on the side of the fluid baffle corresponding to the second magnet. The first and second magnets are chosen to be of opposite magnetic polarity, so that when no force is applied, the first and second magnets attract each other, pushing the fluid baffle to close the second fluid channel. When the motor starts within the second fluid channel, it blows the fluid baffle to rotate and open the second fluid channel. It should be noted that when the motor starts, the thrust on the fluid baffle should be greater than the attraction between the opposite magnets to open the second fluid channel. When the motor is off, the magnets attract each other, pushing the fluid baffle to reset and closing the second fluid channel. Alternatively, the magnets can be replaced with elastic elements. The elastic element pulls the fluid baffle to close the second fluid channel. When fluid flows within the second fluid channel, it blows the fluid baffle and stretches the elastic element. When there is no fluid flow in the second fluid channel, the elastic element resets and pulls the fluid baffle closed. Alternatively, the magnets of the same polarity can be used to repel each other. In this case, the second magnet should be positioned in the open position of the fluid baffle. When there is no fluid flow in the second fluid channel, the magnets repel each other, pushing the fluid baffle closed. To prevent insecure closure, the left and right core housings are equipped with first limiting blocks 2005. Corresponding to the first limiting blocks, the fluid baffle has limiting grooves 2022. When the magnets attract and push the fluid baffle to reset, the first limiting block is positioned within the limiting groove to limit the fluid baffle, preventing fluid in the first fluid channel from entering the second fluid channel through the gap between the valve and the housing. This also provides a buffering effect; a soft object, such as a silicone pad, can be inserted into the limiting groove to reduce the force and noise when the fluid baffle closes. A second limiting block 2006 is provided corresponding to the first limiting block. When the fluid baffle is positioned at the second limiting block, the valve is fully open. It should be noted that the second limiting block should be positioned such that opposite magnets attract each other, or the elastic element can reset. The specific position can be determined based on the magnetism of the magnets or the maximum elastic force of the elastic element; this will not be specifically described here. The valve's opening and closing mechanism is determined by the distance between the first and second limiting blocks.

[0035] Furthermore, such as Figure 2-3 and Figure 5As shown, although an isolation mesh 400 is provided on the rear cover 40 connected to the outer casing 10, dust or hair can still inevitably enter the hair dryer along with the fluid and become entangled on the motor. Therefore, the motor assembly is designed to be detachable. A window 2002 is provided on the motor casing 200, and a corresponding disassembly window 108 is also provided on the casing. The disassembly window corresponds to the window, and multiple motors can be disassembled simultaneously to facilitate cleaning the hair entangled on the motor. It should be noted that the motor assembly can be disassembled by pressing, such as by pressing with a spring-like elastic element. The motor assembly and the control board can be connected by a male and female connector. This part is not described in detail in this application.

[0036] Furthermore, such as Figure 3-4 and Figure 10 As shown, the outer casing 10 includes a left outer casing 101 and a right outer casing 102. An air inlet channel 105 is formed on the side of the outer casing near the rear cover 40, and an air outlet channel 105 is formed on the side near the front cylinder 30. The air inlet channel communicates with the fluid inlet, and the air outlet channel communicates with the fluid outlet, thereby enabling the motor assembly to drive the fluid flow. A heating element can be placed at the air outlet channel 105 so that the fluid blown out through the air outlet channel can be heated. The front cylinder 30 is also provided with an outward protrusion 301, and the inner wall of the outer casing is provided with a locking groove 103 corresponding to the outward protrusion. The locking groove and the outward protrusion secure the front cylinder, while the rear cover and outer casing are secured by a snap-fit ​​mechanism, facilitating disassembly. The handle is provided with multiple sets of limiting plates 107, which fix the control plate and prevent it from shaking. To prevent the connecting cable from breaking, a cable locking post 104 is provided inside the handle, and a cable locking hole 600 is provided on the connecting cable corresponding to the cable locking post. The cable locking hole can be inserted into the cable locking post to prevent the connecting cable from being pulled and causing poor contact. At the same time, a cable sleeve 601 is provided at the connection point between the connecting cable and the handle to protect the connecting cable at the connection point.

[0037] It should be understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A multi-duct module and a high-volume intelligent hair dryer, comprising a housing, a handle formed at the lower part of the housing, a control board disposed inside the handle, a connecting wire connected to the control board disposed at the end of the handle, a hollow upper part of the housing, an air inlet channel formed on one side and an air outlet channel formed on the other side, a motor assembly disposed in the hollow part, and a fluid channel communicating with the air inlet channel and the air outlet channel disposed inside the motor assembly, characterized in that: The fluid channel includes a first fluid channel and at least one set of second fluid channels. Each of the first and second fluid channels is equipped with a set of motors to generate fluid in the first and second fluid channels. The first fluid channel is connected to the air outlet channel. A valve is provided between the second fluid channel and the air outlet channel. The valve opens when fluid flows in the second fluid channel and closes when there is no fluid flow.

2. The hair dryer of claim 1, wherein: The motor assembly includes a motor housing, the fluid channel is placed inside the motor housing, and at least one set of isolation plates is provided inside the motor housing. The isolation plates divide the fluid channel into a first fluid channel and a second fluid channel. One end of the fluid channel forms a fluid inlet that communicates with the air inlet channel, and the other end forms a fluid outlet that communicates with the air outlet channel.

3. The hair dryer of claim 2, wherein: The motor housing has a shaft hole, and the valve includes a fluid baffle with a shaft. The fluid baffle rotates within the second fluid channel via the shaft to open or close the second fluid channel.

4. The hair dryer of claim 3, wherein: A first magnet is provided inside the motor housing, and a second magnet is provided on the side of the fluid baffle corresponding to the first magnet. The first magnet and the second magnet repel or attract each other. When no fluid flow is formed in the second fluid channel, the repulsion or attraction between the first magnet and the second magnet pushes the fluid baffle to close the second fluid channel. When fluid flow is formed in the second fluid channel, the fluid flow pushes the fluid baffle to open the second fluid channel. Alternatively, the fluid baffle can be connected to the housing via an elastic element. When fluid flow is formed in the second fluid channel, the fluid flow pushes the fluid baffle to open the second fluid channel, and the elastic element undergoes elastic deformation. When no fluid flow is formed in the second fluid channel, the elastic element resets its elastic deformation and pulls the fluid baffle to close the second fluid channel.

5. The hair dryer of claim 3, wherein: The motor housing is provided with a first limiting block and a second limiting block. The fluid baffle is provided with a limiting groove corresponding to the first limiting block. When the first limiting block is placed in the limiting groove, the fluid baffle closes the second fluid channel. The fluid baffle moves between the first limiting block and the second limiting block. A soft object is provided in the limiting groove.

6. The hair dryer of claim 2, wherein: The first fluid channel and the second fluid channel are each provided with an independent fluid inlet, and the first fluid channel and the second fluid channel share a set of fluid outlets.

7. The hair dryer of claim 6, wherein: The motors in the first fluid channel and the second fluid channel form a motor assembly. The motor housing is provided with a window corresponding to the motor assembly, and the outer shell is provided with a disassembly window corresponding to the window. The motor assembly is detachably connected to the motor housing at the window and the disassembly window.

8. The hair dryer of any one of claims 1-7, wherein: The air outlet is provided with a rear cover, and the rear cover is provided with an isolation mesh. The air inlet is provided with a front cylinder, and the front cylinder is provided with a filter mesh. The side of the outer shell is provided with an adjustment key and a light panel. The air outlet is provided with a heating element. The handle is provided with a cold air key corresponding to the heating element.

9. The hair dryer of claim 8, wherein: The handle is provided with a limit plate, the outer shell is provided with a locking groove, and the front cylinder is provided with an outward protrusion corresponding to the locking groove.

10. The hair dryer of claim 8, wherein: The handle is provided with a wire-locking post, and the connecting line is provided with a wire-locking hole corresponding to the wire-locking post. A wire sleeve is provided at the connection between the handle and the connecting line.

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