Parallel air flow hair dryer

Abstract

The utility model relates to a parallel airflow hair dryer, including host shell, its inside is formed with air duct, parallel airflow generating mechanism sets up in the air outlet end of host shell, parallel airflow generating mechanism is provided with multiple groups of air outlet groove hole, and the central axis of all air outlet groove holes is parallel to each other, is used for generating parallel outgoing airflow, circuit board eccentricity sets up in host shell, wherein, the circuit element of big space occupation is stacked in one side of circuit board, and the circuit element of small space occupation is stacked in the other side of circuit board, is used for balancing the air inlet resistance of both sides in host shell inside, through setting up parallel airflow generating mechanism, can produce the parallel jet flow of consistent direction, effectively avoids the mutual entanglement, curling of hair in the drying process because of disorderly airflow. Meanwhile, through eccentricity setting up and reasonably distributing the layout of size element of circuit board, balanced the air inlet resistance of both sides in host shell inside, and the parallel airflow generating mechanism coordinates work, has guaranteed the stable generation of parallel airflow.

Description

Technical Field

[0001] This utility model relates to the field of personal care electrical appliances, and in particular to a parallel airflow hair dryer. Background Technology

[0002] Current high-speed hair dryers typically have arc-shaped or radially shaped air outlets, resulting in a diffused and non-parallel airflow. This turbulent airflow, when acting on the hair, causes strands to tangle and curl, failing to meet users' desire for straight hair. Furthermore, the layout of internal components (such as circuit boards and their components) can lead to uneven airflow resistance on both sides of the air duct, further disrupting airflow balance and affecting airflow performance. While some products on the market attempt to optimize the air duct or add heat insulation, they have failed to fundamentally address the issues of airflow parallelism, internal structural balance, and efficient heat insulation in a coordinated manner. Utility Model Content

[0003] The purpose of this utility model is to provide a parallel airflow blower designed to solve at least one technical problem in the background art.

[0004] To achieve the above objectives, the present invention adopts the following solution: a parallel airflow blower, including a main housing with an air duct formed inside; a parallel airflow generating mechanism disposed at the air outlet end of the main housing; the parallel airflow generating mechanism having multiple sets of air outlet slots, the central axes of all air outlet slots being parallel to each other, for generating parallel outgoing airflow; a circuit board eccentrically disposed inside the main housing; wherein, large-space-occupying circuit components are stacked on one side of the circuit board, and small-space-occupying circuit components are stacked on the other side of the circuit board, for balancing the air intake resistance on both sides inside the main housing.

[0005] The advantages of this invention are as follows: By setting a parallel airflow generating mechanism with the central axes of all air outlets parallel to each other, a parallel jet with a consistent direction can be generated, effectively preventing hair from tangling and curling due to turbulent airflow during the drying process, resulting in a straighter blow-drying effect. Simultaneously, by setting the circuit board eccentrically and rationally distributing the layout of components of different sizes, the air intake resistance on both sides of the main casing is balanced, working in conjunction with the parallel airflow generating mechanism to ensure the stable generation of parallel airflow. Furthermore, by using a main support structure composed of ribs and steps, a continuous heat-insulating cavity is formed between the inner and outer shells, effectively preventing heat transfer and achieving excellent anti-scalding effect. This invention comprehensively improves the usability, safety, and comfort of the hair dryer from its structural foundation. Attached Figure Description

[0006] Figure 1 This is a three-dimensional structural diagram of a parallel airflow blower according to an embodiment of the present utility model;

[0007] Figure 2This is a three-dimensional structural diagram of a parallel airflow blower according to an embodiment of the present utility model;

[0008] Figure 3 This is a side view of the parallel airflow blower according to an embodiment of the present invention;

[0009] Figure 4 This is an embodiment of the present utility model. Figure 3 A cross-sectional view of section AA.

[0010] Figure 5 This is an embodiment of the present utility model. Figure 3 Cross-sectional schematic diagram of section BB;

[0011] Figure 6 This is a schematic diagram of the structure of a parallel airflow blower according to an embodiment of the present invention;

[0012] Figure 7 This is an embodiment of the present utility model. Figure 6 Cross-sectional schematic diagram of the CC section;

[0013] Figure 8 This is a schematic diagram of the parallel airflow generating mechanism and inner liner of an embodiment of this utility model.

[0014] Figure Labels

[0015] 100. Main unit housing; 200. Parallel airflow generating mechanism; 210. Long straight slot; 220. Edge air guide hole; 300. Circuit board; 310. Large volume component; 320. Small volume component; 400. Inner liner; 500. Outer shell; 600. Support structure; 610. Rib; 620. Step; 700. Heat insulation cavity; 800. Handle; 810. Switch button; 820. Cold air button; 830. Hot air level control button; 840. Fan speed level control button; 900. Air inlet; 910. Rear air inlet group; 920. Peripheral air inlet group. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0018] In the description of this utility model, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number. The terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features.

[0019] Furthermore, unless otherwise defined, the technical and scientific terms used in this invention have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for the purpose of describing particular embodiments only and not for limiting the invention. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Please see Figure 1-8In one embodiment, a parallel airflow hair dryer includes a main housing 100, a parallel airflow generating mechanism 200, and a circuit board 300. An air duct is formed inside the main housing 100; the parallel airflow generating mechanism 200 is disposed at the air outlet end of the main housing 100; the parallel airflow generating mechanism 200 has multiple sets of air outlet slots, all of which have central axes parallel to each other, for generating parallel outgoing airflow; the circuit board 300 is eccentrically disposed inside the main housing 100; wherein, large-space-occupying circuit components 310 are stacked on one side of the circuit board 300, and small-space-occupying circuit components 320 are stacked on the other side of the circuit board 300, for balancing the air intake resistance on both sides inside the main housing 100. This basic structure, through the coordinated design of parallel airflow and internal layout, fundamentally solves the problems of turbulent airflow and hair tangling and curling caused by traditional hair dryers.

[0022] In one embodiment, the air outlet slot consists of a long straight slot 210 and an edge guide hole 220; the two sides of the long straight slot 210 are parallel straight lines; one side of the edge guide hole 220 is a straight line, and the other side is an arc that matches the shape of the main unit housing 100. This structure ensures parallel airflow while perfectly matching the product's appearance, achieving a unity of aesthetics and function.

[0023] In one embodiment, the system further includes an inner liner 400 and an outer shell 500. The inner liner 400 is disposed inside the outer shell 500. The outer wall of the inner liner 400 is connected to the inner wall of the outer shell 500 by a plurality of spaced-apart support structures 600, thereby forming a heat-insulating cavity 700 between the inner liner 400 and the outer shell 500. This design effectively blocks the direct conduction path of heat through the principle of air insulation.

[0024] In one embodiment, the support structure 600 includes a rib 610 and a step 620; the rib 610 is located at one end near the parallel airflow generating mechanism 200, and the step 620 is connected to the rib 610 and its thickness is greater than the height of the rib 610. This differential height design ensures structural strength while further reducing the area for heat conduction.

[0025] In one embodiment, the rib 610 and the step 620 constitute the main support structure between the inner liner 400 and the outer shell 500, forming a continuous heat-insulating cavity 700 between the inner liner 400 and the outer shell 500. This design effectively prevents heat transfer to the outer shell by minimizing the heat conduction contact area and isolating heat within the inner liner, thus achieving excellent anti-scalding effect.

[0026] In one embodiment, there are multiple sets of long straight slots 210, arranged side-by-side in the central region of the parallel airflow generating mechanism 200; there are multiple sets of edge guide holes 220, symmetrically distributed on both sides of the long straight slots 210. This arrangement results in a concentrated and strong airflow in the central region and a smooth transition of the airflow at the edges, together forming a uniform parallel flow field.

[0027] In one embodiment, the circuit board 300 is specifically disposed on the right side of the main housing 100; the space-consuming circuit components 310, including electrolytic capacitors and PFC inductors, are stacked on the left side of the circuit board 300; the space-consuming circuit components 320, including surface mount resistors and surface mount capacitors, are stacked on the right side of the circuit board 300. This specific component layout scientifically balances the flow resistance on both sides of the air duct, providing a stable aerodynamic basis for generating parallel airflow.

[0028] In one embodiment, the number of bone positions 610 and steps 620 is no less than three sets, and they are evenly distributed circumferentially around the outer wall of the inner liner 400. This symmetrical layout ensures the uniformity of structural stress and avoids deformation or abnormal noise caused by stress concentration at a single point.

[0029] In one embodiment, the parallel airflow generating mechanism 200 is connected to the air outlet of the main housing 100 by a snap-fit ​​and is detachable. This design facilitates the user in cleaning dust and lint from the air outlet slots, ensuring the long-term performance and hygiene of the product.

[0030] In one embodiment, the total air outlet area of ​​the multiple sets of air outlet slots accounts for 60% to 80% of the total area of ​​the parallel airflow generating mechanism 200. This preferred area ratio ensures sufficient airflow volume while guaranteeing sufficient airflow velocity and concentration, achieving optimal drying and smoothing effects.

[0031] In one embodiment, the device also includes a handle 800 mounted on the main unit housing 100. The front end of the handle 800 is provided with a power switch 810 and a cool air button 820, while the side of the handle 800 is provided with a hot air mode control button 830 and a fan speed mode control button 840. This ergonomic button layout allows users to operate the device intuitively and conveniently while holding it, enhancing the user experience.

[0032] In one embodiment, the air inlet end 900 of the main housing 100 is provided with a rear air inlet group 910 and a peripheral air inlet group 920. This multi-directional air intake design effectively increases the air intake area, reduces wind resistance and noise, and ensures smooth and efficient motor operation.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A parallel airflow hair dryer, characterized in that, include: The main unit casing has an internal air duct. A parallel airflow generating mechanism is provided at the air outlet end of the main housing; the parallel airflow generating mechanism has multiple sets of air outlet slots, and the central axes of all the air outlet slots are parallel to each other, for generating parallel outgoing airflow. The circuit board is eccentrically positioned inside the main unit housing; wherein, large-sized circuit components are stacked on one side of the circuit board, and small-sized circuit components are stacked on the other side of the circuit board, in order to balance the air intake resistance on both sides inside the main unit housing.

2. A parallel airflow hair dryer as described in claim 1, characterized in that, The air outlet slot is composed of a long straight slot and an edge air guide hole; the two sides of the long straight slot are parallel straight lines; one side of the edge air guide hole is a straight line, and the other side is an arc that matches the shape of the main unit housing.

3. A parallel airflow hair dryer as described in claim 1, characterized in that, It also includes an inner liner and an outer shell. The inner liner is disposed inside the outer shell. The outer wall of the inner liner is connected to the inner wall of the outer shell by a plurality of spaced-apart support structures, so that a heat-insulating cavity is formed between the inner liner and the outer shell.

4. A parallel airflow hair dryer as described in claim 3, characterized in that, The support structure includes a rib and a step; the rib is located at one end near the parallel airflow generating mechanism, and the step is connected to the rib and its thickness is greater than the height of the rib.

5. A parallel airflow hair dryer as described in claim 4, characterized in that, The bone structure and the step form the main support structure between the inner liner and the outer shell, thereby creating a continuous heat-insulating cavity between the inner liner and the outer shell.

6. A parallel airflow hair dryer as described in claim 2, characterized in that, The number of the long straight slots is in multiple groups, and they are arranged side by side in the central region of the parallel airflow generating mechanism; the number of the edge guide holes is in multiple groups, and they are symmetrically distributed on both sides of the long straight slots.

7. A parallel airflow hair dryer as described in claim 1, characterized in that, The circuit board is specifically located on the right side of the main unit casing; the space-consuming circuit components include electrolytic capacitors and PFC inductors, which are stacked on the left side of the circuit board; the space-consuming circuit components include surface mount resistors and surface mount capacitors, which are stacked on the right side of the circuit board.

8. A parallel airflow hair dryer as described in claim 4, characterized in that, The number of bone positions and steps is no less than three sets, and they are evenly distributed around the outer wall of the inner liner.

9. A parallel airflow hair dryer as described in claim 1, characterized in that, The parallel airflow generating mechanism is connected to the air outlet of the main housing by a snap-fit ​​and is detachable.

10. A parallel airflow hair dryer as described in claim 1, characterized in that, The total air outlet area of ​​the multiple sets of air outlet slots accounts for 60% to 80% of the total area of ​​the parallel airflow generating mechanism.

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