Blowing device

Abstract

The utility model discloses a blowing device which comprises an air outlet main body and a heating mechanism, the air outlet main body comprises a first air outlet part and a second air outlet part, the second air outlet part is connected to the periphery of the first air outlet part in a sleeved mode, an air outlet channel is formed between the second air outlet part and the first air outlet part, and the air outlet main body further comprises a first end plate and a second end plate which are oppositely arranged. An opening is formed between the first end plate and the second end plate in a spaced mode, a containing cavity penetrating in the air outlet direction is formed in the side, back to the second air outlet part, of the first air outlet part, and the containing cavity communicates with the opening. The heating mechanism is arranged in the air outlet channel and comprises a heat insulation sheet and a heating wire, the heating wire is wound around the heat insulation sheet, a plurality of heating wire sections arranged side by side are formed on the first surface and the second surface of the heat insulation sheet respectively, and the heating wire sections extend in the airflow direction of the air outlet channel and are arranged at intervals with the inner wall of the air outlet channel. According to the technical scheme, the practicability and reliability of the air blowing device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blowing equipment, in particular to a blowing device. Background Art

[0002] In the related art, in order to achieve rapid drying of wet parts of the human body such as hair and hands, hair dryers, hand dryers and other blowing devices are usually used to generate hot air flow to act on the human body to accelerate the evaporation rate of moisture in the parts to be dried, which is conducive to better reducing the time required for natural drying of the parts to be dried.

[0003] However, most of the existing hair dryers generate hot air flow that blows directly onto the part to be dried, which can easily cause the hair waiting to be dried to be scattered by the air flow, causing the hair to be tangled and knotted; at the same time, the direct collision of the blowing air flow and the part to be dried can easily cause water to splash on the part to be dried, resulting in splashed water marks easily attached to the inside and outside of the hair dryer, making it inconvenient to clean and maintain the hair dryer, thereby reducing the practicality and reliability of the hair dryer. Utility Model Content

[0004] The main purpose of the utility model is to provide a blowing device, aiming to improve the structure of the blowing device so that the airflow generated by the blowing device can act on the surface of the part to be dried to dry it, thereby improving the practicality and reliability of the blowing device.

[0005] To achieve the above-mentioned purpose, the blowing device proposed by the utility model includes an air outlet body and a heating mechanism, the air outlet body includes a first air outlet portion and a second air outlet portion, the second air outlet portion is sleeved on the outer periphery of the first air outlet portion, and an air outlet channel is formed between the second air outlet portion and the first air outlet portion, one end of the air outlet body forms an air outlet connected to the air outlet channel, the air outlet body also includes a first end plate and a second end plate arranged opposite to each other, the first end plate connects one end of the first air outlet portion and one end of the second air outlet portion, the second end plate connects the other end of the first air outlet portion and the other end of the second air outlet portion, the first An opening is formed between the end plate and the second end plate, and a accommodating cavity is formed on the side of the first air outlet portion facing away from the second air outlet portion and penetrating along the air outlet direction, and the accommodating cavity is connected to the opening; the heating mechanism is arranged in the air outlet channel, and the heating mechanism includes a heat insulation sheet and a heating wire, and the heat insulation sheet is defined as having a first surface and a second surface facing each other, the heating wire is wound around the heat insulation sheet, and a plurality of heating wire segments arranged side by side are formed on the first surface and the second surface respectively, the heating wire segments extend along the airflow direction of the air outlet channel, and are spaced apart from the inner wall of the air outlet channel.

[0006] Optionally, the blowing device further comprises a fixed structure, the fixed structure is connected to the second air outlet, a drainage cavity is provided in the fixed structure, and the drainage cavity is connected to the air outlet channel. The blowing device further comprises a drainage device, the drainage device is provided in the drainage cavity, and is used to drive the airflow through the drainage cavity into the air outlet channel.

[0007] Optionally, an air inlet connected to the drainage cavity is provided on the outer peripheral side of the fixed structure, the drainage device is provided between the air inlet and the air outlet channel, the fixed structure is provided with a guide cone, the guide cone is provided in the drainage cavity and is arranged on the same horizontal plane as the air inlet, and a guide arc surface is provided on the outer periphery of the guide cone, and the guide arc surface is arranged toward the air inlet.

[0008] Optionally, the air outlet body is further provided with a partition plate, which is arranged in the air outlet channel and divides the air outlet channel into an air outlet cavity and an installation cavity, and the drainage cavity is connected to the air outlet cavity. The blowing device also includes a control circuit board, which is arranged in the installation cavity and connected to the periphery of the first air outlet.

[0009] Optionally, the partition plate is provided with a slot, and the slot is fixedly connected to one end of the heat insulation sheet. And / or, the air outlet body is further provided with an air outlet cover, and the air outlet cover is connected to one end of the air outlet body and covers the air outlet, and an annular air outlet hole is provided in the air outlet cover, and the annular air outlet hole is connected to the air outlet channel, and the width of the annular air outlet hole is gradually reduced along the air flow direction, and one end of the heat insulation sheet is connected to the annular air outlet hole.

[0010] Optionally, the number of the heating mechanisms is at least two, and at least two of the heating mechanisms are sequentially and spaced apart from each other in the air outlet channel.

[0011] Optionally, the distance between two adjacent heating mechanisms is defined as H, 2mm≤H≤10mm.

[0012] Optionally, the thermal insulation sheet includes a thermal insulation body and a support member, the heating wire is wound around the thermal insulation body, and the thermal insulation body has two ends facing the air inlet and the air outlet respectively; the support member is connected to the two ends of the thermal insulation body and is clamped to the air outlet body.

[0013] Optionally, the air outlet channel is defined as having a first inner wall and a second inner wall opposite to each other, the first inner wall is disposed toward the first surface of the heat insulation sheet, the second inner wall is disposed toward the second surface of the heat insulation sheet, the spacing between the first inner wall and the heating wire segment on the first surface is defined as W1, the spacing between the second inner wall and the heating wire segment on the second surface is defined as W2, 0.5≤W2 / W1≤1. And / or, a heat insulation layer is provided on the inner wall of the air outlet channel.

[0014] Optionally, the projection formed by the air outlet body along the air outlet direction is U-shaped. Alternatively, the projection formed by the air outlet body along the air outlet direction is V-shaped. Alternatively, the projection formed by the air outlet body along the air outlet direction is C-shaped.

[0015] The technical solution of the utility model can make the part to be dried enter the accommodating cavity through the opening by arranging a receiving cavity and an opening on the air outlet body, so that the air outlet direction of the air outlet on the air outlet body is flush with the surface of the part to be dried. In this way, the air flow can flow along the surface of the part to be dried to take away moisture and achieve air drying of the part to be dried, avoiding the air flow from acting vertically on the surface of the part to be dried, preventing the part to be dried from scattering and reducing the splashing of moisture into the blowing device. At the same time, by using the heating wire to wrap around the heat insulation sheet to form a heating mechanism, the heating wire segments of the heating mechanism on the first surface and the second surface of the heat insulation sheet can be arranged parallel to the air flow direction, reducing the obstruction of the heating mechanism to the air flow, effectively reducing the loss of heat carried by the air flow, ensuring the full use of heat energy, and then achieving a higher heat hot air blowing effect under the lower operating power consumption of the blowing device, which is conducive to better improving the air drying rate of the blowing device under low power consumption conditions, and further improving the practicality and reliability of the blowing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the blowing device of the utility model;

[0018] Figure 2 for Figure 1 A structural exploded view of an embodiment of a blowing device;

[0019] Figure 3 for Figure 1 A cross-sectional view of an embodiment of a blowing device;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0021] Figure 5 for Figure 1 A flow diagram of the outlet air flow in the blowing device;

[0022] Figure 6 for Figure 1 A cross-sectional view of an embodiment of an air outlet body and a heating mechanism of an air blowing device;

[0023] Figure 7 for Figure 1 A structural schematic diagram of an embodiment of a heating mechanism of a blowing device.

[0024] Description of Figure Numbers:

[0025] Label name Label name 100 Blowing device 16 Air outlet cover 10 Air outlet 161 Ring air outlet 10a Air outlet 30 Heating mechanism 11a Air outlet cavity 31 Heat insulation sheet 13a Mounting cavity 311 Insulation body 10b Air outlet 313 Support 10c Opening 33 Heating wire 11 First air outlet 50 Fixed structure 111 Accommodation cavity 51 Drainage cavity 12 Second air outlet 53 Air Inlet 13 First end plate 55 Diversion cone 14 Second end plate 70 Drainage devices 15 Divider 90 Control circuit board 151 Card slot

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] In the related art, in order to achieve rapid drying of wet hair, hands and other parts of the human body, hair dryers, hand dryers and other blowing devices can usually be used to generate hot air flow to act on the human body to accelerate the evaporation rate of water in the parts to be dried, which is conducive to better reducing the time required for the parts to be dried to dry naturally. However, most of the existing blowing devices generate hot air flow and blow it directly on the parts to be dried, which can easily cause the hair waiting to be dried to be scattered by the air flow, causing the hair to be tangled and knotted; at the same time, the direct collision of the blowing air flow and the parts to be dried can easily cause water to splash on the parts to be dried, resulting in splashed water marks inside and outside the blowing device, which is not convenient for cleaning and maintenance of the blowing device, thereby reducing the practicality and reliability of the blowing device. In view of the above problems, the utility model proposes a blowing device 100.

[0032] Reference Figures 1 to 7In the embodiment of the utility model, the blowing device 100 includes an air outlet body 10 and a heating mechanism 30. The air outlet body 10 includes a first air outlet portion 11 and a second air outlet portion 12. The second air outlet portion 12 is sleeved on the outer periphery of the first air outlet portion 11 and forms an air outlet channel 10a with the first air outlet portion 11. One end of the air outlet body 10 forms an air outlet 10b connected to the air outlet channel 10a. The air outlet body 10 also includes a first end plate 13 and a second end plate 14 arranged opposite to each other. The first end plate 13 connects one end of the first air outlet portion 11 and one end of the second air outlet portion 12. The second end plate 14 connects the other end of the first air outlet portion 11 and the other end of the second air outlet portion 12. An opening 10c is formed between the first end plate 13 and the second end plate 14, and a accommodating cavity 111 is formed on the side of the first air outlet portion 11 facing away from the second air outlet portion 12 and extending through the air outlet direction, and the accommodating cavity 111 is connected to the opening 10c; a heating mechanism 30 is arranged in the air outlet channel 10a, and the heating mechanism 30 includes a heat insulating sheet 31 and a heating wire 33, and the heat insulating sheet 31 is defined to have a first surface and a second surface facing each other, the heating wire 33 is wound around the heat insulating sheet 31, and a plurality of heating wire 33 sections arranged side by side are formed on the first surface and the second surface respectively, and the heating wire 33 sections extend along the airflow direction of the air outlet channel 10a and are spaced apart from the inner wall of the air outlet channel 10a.

[0033] In the present application, by arranging the first end plate 13 and the second end plate 14 which relatively form the opening 10c on the air outlet main body 10, the opposite sides of the first end plate 13 can be used to respectively connect one end of the first air outlet portion 11 and one end of the second air outlet portion 12, and the opposite sides of the second end plate 14 can be respectively connected to the other end of the first air outlet portion 11 and the other end of the second air outlet portion 12, so that the air outlet channel 10a formed between the first air outlet portion 11 and the second air outlet portion 12 can be closed under the action of the first end plate 13 and the second end plate 14, so that the outlet airflow can stably flow through the air outlet channel 10a, and the airflow can be stably blown out from the air outlet 10b under the heating action of the heating mechanism 30 in the air outlet channel 10a.

[0034] By forming a accommodating chamber 111 by recessing the first air outlet 11, and making the accommodating chamber 111 communicate with the opening 10c, when the hair dryer 100 blows air to the part to be dried, the part to be dried can enter the accommodating chamber 111 through the opening 10c, and at this time, the first air outlet 11 and the second air outlet 12 can wrap the outside of the part to be dried, and then when the hair dryer 100 blows out air through the air outlet 10b of the air outlet body 10, the air outlet direction of the air can be parallel to the surface of the part to be dried, so that the air outlet airflow can flow along the surface of the object to be dried to take away moisture, and ensure the hair dryer 100 to dry the part stably. In addition, it can avoid the air outlet airflow blowing vertically to the part to be dried, which is conducive to preventing the hair and fur from flying in the part to be dried, and at the same time, it can reduce the dried water vapor entering the hair dryer 100, and ensure the overall structural stability of the hair dryer 100, so that the user experience is better, and the practicality and reliability of the hair dryer 100 are further improved.

[0035] Specifically, when the hair dryer 100 is used as a hair dryer, the user grabs the hair and places the hair into the accommodating cavity 111 through the opening 10c. The first air outlet portion 11 is wrapped around the periphery of the hair, and the air outlet 10b of the air outlet body 10 is directed toward the ends of the hair. The air flow blown out through the air outlet 10b flows to the surface of the hair and takes away moisture from the surface of the hair to dry the hair. Since the air outlet body 10 is wrapped around the outside of the hair, the hair can be prevented from flying around or even tangled or knotted during the drying process. It should be noted that since the flow direction of the air flow is the same as the growth direction of the hair scales, the air flow blows the scales closed during the drying process, making the hair smoother after drying. When the hair dryer 100 is used as a hand dryer, the wrist or arm of the human body enters the accommodating chamber 111 through the opening 10c, the air outlet body 10 is wrapped around the outside of the wrist or arm, and the air outlet 10b faces the hand. The airflow discharged from the air outlet 10b blows toward the surface of the hand along the extension direction of the fingers, and takes away the moisture to achieve hand drying; it should be noted that since the airflow flows along the surface of the hand, the moisture on the surface of the hand is driven by the airflow and falls directly downward, and will not splash into the interior of the hair dryer 100, which can reduce the liquid residue inside the hair dryer 100 and facilitate cleaning and maintenance. It should be noted that in order to facilitate the part to be dried to be placed in the accommodating chamber 111 through the opening 10c, in this embodiment, the accommodating chamber 111 and the opening 10c both pass through the air outlet body 10 along the air outlet direction of the air outlet channel 10a to avoid interference with the air outlet body 10 during the process of the part to be dried being placed in the accommodating chamber 111. The blowing device 100 further includes a flow guiding device 70 for generating airflow. The airflow generated by the flow guiding device 70 enters the air outlet channel 10a and is discharged from the air outlet 10b, thereby drying the object to be dried.

[0036] In addition, the heating mechanism 30 is formed by winding a heating wire 33 on the thermal insulation sheet 31. The thermal insulation sheet 31 can be a sheet structure made of a material with certain thermal insulation properties such as mica sheet. The thermal insulation sheet 31 can be used to isolate the heat generated by the heating wire 33 from being directly transferred to the air outlet main body 10. A longer heating wire 33 is spirally wound around the surface of the thermal insulation sheet 31, so that a plurality of heating wire 33 sections laid side by side along the length direction of the thermal insulation sheet 31 can be formed on the first surface and the second surface of the thermal insulation sheet 31, and the heating wire 33 sections are extended along the airflow direction in the air outlet channel 10a. When the heating mechanism 30 is installed in the air outlet main body 10, the thermal insulation sheet 31 can be set along the airflow direction, so that the heating wire 33 sections on the thermal insulation sheet 31 can be set parallel to the airflow flowing in the air outlet channel 10a. At the same time, since the thickness of the heat insulation sheet 31 is relatively small, when the heating mechanism 30 is set in the air outlet channel 10a, the heating wire 33 sections on the first surface and the second surface of the heat insulation sheet 31 can maintain a certain gap with the inner wall of the air outlet channel 10a, so that the outlet airflow can flow through the gap more stably and smoothly to be discharged, effectively avoiding the obstruction of the outlet airflow by the heating mechanism 30, and thus preventing the airflow from turbulently colliding with the inner wall of the air outlet channel 10a and the heating mechanism 30 in the air outlet channel 10a, reducing the loss of heat carried by the airflow, and allowing the outlet airflow to maintain a higher flow rate and heat out of the air outlet 10b, so that the heating mechanism 30 does not need to use a higher working power to ensure the temperature of the outlet airflow, effectively reducing the power consumption of the blowing device 100. Furthermore, by improving the power consumption design of the heating mechanism 30, the outlet air flow can carry higher heat to dry the parts to be dried, which is beneficial to further improve the drying rate of the blowing device 100 while achieving lower power consumption of the blowing device 100, so that the blowing device 100 can better meet the user's usage needs and further improve the practicality and reliability of the blowing device 100.

[0037] The heating mechanism 30 is arranged on the first surface and the second surface of the heat insulation sheet 31 by using the heating wire 33 segments extending along the air flow direction, and radiates heat toward the inner wall of the air outlet channel 10a by using the heating wire 33 segments, so that the airflow carries heat energy when flowing through the gap between the heating wire 33 segments and the inner wall of the air outlet channel 10a, and discharges air through the annular air outlet 10b to realize the hot air function of the blowing device 100. At this time, by adjusting the overall size of the air outlet body 10, the channel width of the air outlet channel 10a can be limited, thereby avoiding the gap between the heating wire 33 segments and the inner wall of the air outlet channel 10a being too large, which may cause a certain probability that part of the airflow away from the heating wire 33 segments does not receive enough heat, resulting in uneven heat of the air outlet airflow; or avoiding the gap between the heating wire 33 segments and the inner wall of the air outlet channel 10a being too small, which may cause the heating mechanism 30 to affect the stable flow of the air outlet airflow in the air outlet channel 10a, thereby better improving the structural stability and reliability of the blowing device 100.

[0038] The technical solution of the utility model is to set a accommodating cavity 111 and an opening 10c on the air outlet main body 10, so that the part to be dried can enter the accommodating cavity 111 through the opening 10c, and the air outlet direction of the air outlet 10b on the air outlet main body 10 is flush with the surface of the part to be dried. In this way, the air flow can flow along the surface of the part to be dried to carry away moisture and achieve air drying of the part to be dried, avoiding the air flow from acting vertically on the surface of the part to be dried, preventing the part to be dried from scattering and reducing the splashing of moisture into the blowing device 100. At the same time, by using the heating wire 33 to be wound around the insulation sheet 31 to form a heating mechanism 30, the heating wire 33 sections on the first surface and the second surface of the insulation sheet 31 of the heating mechanism 30 can be arranged parallel to the airflow direction, thereby reducing the obstruction of the heating mechanism 30 to the outlet airflow, effectively reducing the loss of heat carried by the outlet airflow, and ensuring the full utilization of thermal energy. As a result, a higher heat level hot air blowing effect can be achieved under lower operating power consumption of the blowing device 100, which is conducive to better improving the air drying rate of the blowing device 100 under low power consumption conditions, and further improving the practicality and reliability of the blowing device 100.

[0039] Reference Figure 2 and Figure 3 In one embodiment of the utility model, the blowing device 100 further includes a fixed structure 50, the fixed structure 50 is connected to the second air outlet 12, and a drainage cavity 51 is provided in the fixed structure 50, and the drainage cavity 51 is connected to the air outlet channel 10a. The blowing device 100 further includes a drainage device 70, which is provided in the drainage cavity 51 and is used to drive the airflow through the drainage cavity 51 into the air outlet channel 10a.

[0040] In this embodiment, the fixed structure 50 can be a handle for the user to hold, so that the user can hold the hair-drying device 100 for drying, and can flexibly adjust the angle of the air outlet body 10, the position of the opening 10c, etc. as needed, and has high convenience of use. For example, when the hair-drying device 100 is a hair dryer, the fixed structure 50 is set as a handle, and the air outlet body 10 is an air outlet. The fixed structure 50 can also be a structure for realizing the installation and fixation of the air outlet device. For example, the fixed structure 50 is set as a fixed seat, and the fixed seat can be installed and fixed on the installation surface (such as a wall, a washbasin), so that the air outlet body 10 is in a fixed state. For example, when the air outlet device is a hand dryer, the fixed structure 50 is a fixed seat on the hand dryer for fixing.

[0041] By arranging a drainage device 70 in the drainage chamber 51, the drainage device 70 can be a fan, and the fan is used to drive the fan blades to rotate in the drainage chamber 51, so as to drive the air outside the blowing device 100 into the drainage chamber 51 to form an outlet airflow, and the outlet airflow passes through the drainage chamber 51 into the air outlet channel 10a, and is then blown out through the air outlet 10b to act on the part to be dried, thereby ensuring the stable operation of the blowing device 100.

[0042] Reference Figure 3 and Figure 4 In one embodiment of the utility model, an air inlet 53 connected to a drainage cavity 51 is provided on the outer peripheral side of the fixed structure 50, and a drainage device 70 is provided between the air inlet 53 and the air outlet channel 10a. The fixed structure 50 is provided with a guide cone 55, and the guide cone 55 is provided in the drainage cavity 51 and is arranged on the same horizontal plane as the air inlet 53. A guide arc surface is provided on the outer periphery of the guide cone 55, and the guide arc surface is arranged toward the air inlet 53.

[0043] In this embodiment, the fixed structure 50 can be provided with an air inlet 53 on the outer peripheral surface at a certain distance from the air outlet body 10, so that the air outside the blowing device 100 can be better driven into the drainage chamber 51 under the driving action of the drainage device 70, thereby ensuring the stable operation of the blowing device 100. Among them, when the blowing device 100 is used as a hair dryer, the distance between the air inlet 53 and the air outlet body 10 can meet the user's holding requirements, so that the user can avoid blocking the air inlet 53 when holding the blowing device 100 for blowing, thereby ensuring the stable air intake of the air inlet 53.

[0044] Among them, by setting a guide cone 55 in the drainage chamber 51, the outer peripheral arc surface of the guide cone 55 can be set toward the air outlet 10b, and then when the airflow enters the drainage chamber 51 through the air inlet 53, it can flow toward the drainage device 70 along the guide arc surface of the guide cone 55, so that the guide cone 55 can play a certain guiding and drainage effect, which is beneficial to avoid turbulence after the airflow enters the drainage chamber 51 through the air inlet 53, so that the airflow can flow vertically in the drainage chamber 51 to the air outlet channel 10a, effectively improving the airflow velocity flowing in the air outlet channel 10a, achieving a better air outlet effect of the blowing device 100, and further improving the practicality and reliability of the blowing device 100.

[0045] Reference Figure 2 , Figure 3 and Figure 6 In one embodiment of the utility model, the air outlet body 10 is further provided with a partition plate 15, which is arranged in the air outlet channel 10a and divides the air outlet channel 10a into an air outlet cavity 11a and a mounting cavity 13a, and the guide cavity 51 is connected to the air outlet cavity 11a. The blowing device 100 also includes a control circuit board 90, which is arranged in the mounting cavity 13a and connected to the outer periphery of the first air outlet portion 11.

[0046] In this embodiment, by setting a partition plate 15 in the air outlet body 10 to separate the air outlet channel 10a, a relatively sealed installation cavity 13a can be formed in the air outlet body 10, which is conducive to the blowing device 100 to install the control circuit board 90 in the installation cavity 13a, thereby preventing the air flow from entering the installation cavity 13a and affecting the control circuit board 90. At the same time, the air flow heated by the heating mechanism 30 can be better isolated from flowing back into the installation cavity 13a, effectively preventing the control circuit board 90 from being affected by the high-temperature air flow, and further improving the overall structural stability of the blowing device 100. Among them, the control circuit board 90 can be sleeved on the outer periphery of the first air outlet portion 11, so that the control circuit board 90 can be assembled with the air outlet body 10 to prevent the control circuit board 90 from being offset in the air outlet body 10, and further improve the structural stability and reliability of the blowing device 100.

[0047] Reference Figure 2 and Figure 3 In one embodiment of the utility model, the partition plate 15 is provided with a slot 151, and the slot 151 is clamped and fixed with one end of the heat insulation sheet 31. And / or, the air outlet body 10 is further provided with an air outlet cover 16, which is clamped at one end of the air outlet body 10 and covers the air outlet 10b, and an annular air outlet hole 161 is provided in the air outlet cover 16, and the annular air outlet hole 161 is connected to the air outlet channel 10a, and the width of the annular air outlet hole 161 is gradually reduced along the air flow direction, and one end of the heat insulation sheet 31 is clamped at the annular air outlet hole 161.

[0048] In this embodiment, the partition plate 15 can be provided with a card slot 151 on the side surface facing the air outlet 10b. The card slot 151 can be set corresponding to the thickness dimension of the heat insulation sheet 31, or when a support member 313 is provided at the end of the heat insulation sheet 31, the card slot 151 can be set corresponding to the dimension of the support member 313. Then, during the assembly process of the blowing device 100, the heating mechanism 30 can clamp and fix the end of the heat insulation sheet 31 in the card slot 151, so as to realize the installation and fixation of the heating mechanism 30 in the air outlet channel 10a, prevent the heating mechanism 30 from shifting in the air outlet channel 10a, and avoid the heat generated by the heating mechanism 30 from being directly transferred to the air outlet body 10, thereby further improving the structural stability and reliability of the blowing device 100.

[0049] In addition, by providing an air outlet cover 16 whose width gradually decreases along the air outlet direction on the air outlet main body 10, the annular air outlet hole in the air outlet cover 16 can be used to guide and gather the air flow, which is conducive to better improving the flow rate and flow rate of the air flow of the blowing device 100, and further improving the blowing effect of the blowing device 100. Among them, the air outlet cover 16 can be provided with a slot corresponding to the size of the heat insulation sheet 31 in the annular air outlet hole, or the end of the heat insulation sheet 31 can be provided with a support member 313, so that the width size of the annular air outlet hole of the air outlet cover 16 corresponds to the size setting of the support member 313, and then during the assembly process, the end of the heat insulation sheet 31 facing the air outlet cover 16 can be clamped and fixed in the annular air outlet hole, so as to achieve the stable installation of the heating mechanism 30 in the air outlet channel 10a, prevent the heating mechanism 30 from deviating in the air outlet channel 10a, and further improve the structural stability and reliability of the blowing device 100.

[0050] In an embodiment of the present invention, the number of the heating mechanisms 30 is at least two, and the at least two heating mechanisms 30 are sequentially and spaced apart from each other and sleeved in the air outlet passage 10a.

[0051] In this embodiment, the blowing device 100 can be configured with at least two heating mechanisms 30, so that a larger number of heating mechanisms 30 can be used to better increase the heat of the outlet air flow; or a larger number of heating mechanisms 30 can be used to ensure the setting of a larger volume of air outlet channels 10a, so as to better achieve large air volume outlet of the blowing device 100. Among them, the blowing device 100 can select an appropriate number of heating mechanisms 30 according to the size setting requirements of the air outlet channel 10a and the spacing requirements between the air outlet channel 10a and the heating mechanism 30. When it is necessary to configure at least two heating mechanisms 30 in the blowing device 100, at least two heating mechanisms 30 can be arranged in sequence at a certain interval, and when multiple heating mechanisms 30 are installed in the air outlet channel 10a, the heating mechanism 30 close to the inner wall of the channel of the air outlet channel 10a maintains a certain gap with the inner wall of the channel of the air outlet channel 10a, so that the outlet airflow can smoothly flow through the gap between the heating mechanism 30 and the inner wall of the channel of the air outlet channel 10a and the gap between the heating mechanisms 30, thereby ensuring the stable heating of the airflow in the blowing device 100 and achieving a stable and reliable hot air blowing effect of the blowing device 100.

[0052] Therefore, by arranging a plurality of heating mechanisms 30 at intervals in the air outlet channel 10a, the plurality of heating mechanisms 30 can be used to better increase the heat carried by the outlet airflow, so that the hot air blown by the blowing device 100 can better meet the user's use needs. Or when the air outlet body 10 needs to be provided with a larger air outlet channel 10a to meet the demand for large air volume, the plurality of heating mechanisms 30 can be arranged at intervals to better release heat into the entire air outlet channel 10a, effectively reducing the heating dead zone in the air outlet channel 10a, ensuring that the outlet airflow can be fully heated, and thus better ensuring the uniform hot air outlet effect of the blowing device 100, further improving the practicality and reliability of the blowing device 100.

[0053] In an embodiment of the present invention, the distance between two adjacent heating mechanisms 30 is defined as H, 2 mm ≤ H ≤ 10 mm.

[0054] In this embodiment, when at least two heating mechanisms 30 are configured in the blowing device 100, a certain spacing requirement needs to be maintained between adjacent heating mechanisms 30, which is beneficial to avoid mutual interference between the heating mechanisms 30, and at the same time ensures that the heating mechanisms 30 can better release heat in the entire air outlet channel 10a, further improving the practicality and reliability of the blowing device 100. Specifically, the spacing H between two adjacent heating mechanisms 30 can be limited to between 2 mm and 10 mm, wherein by making H ≥ 2 mm, for example, H = 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, etc., within this range, it can be ensured that there can be a certain gap between adjacent heating mechanisms 30, which is beneficial to better avoid the heating wire 33 sections on two adjacent insulation sheets 31 from contacting each other, which may cause overheating of the heating mechanism 30, thereby ensuring the stable operation of the blowing device 100, and at the same time, the outlet air flow can flow through the gap between the two adjacent heating mechanisms 30 more stably and reliably, effectively preventing the heating mechanism 30 from obstructing the outlet air flow and causing heat loss of the outlet air flow, thereby ensuring full utilization of the thermal energy of the blowing device 100. At the same time, by making H≤10mm, for example, H=5mm, 6mm, 7mm, 8mm, 9mm, etc., within this range, the distance between two adjacent heating mechanisms 30 is not too large, so that the two adjacent heating mechanisms 30 can fully radiate heat in the gap between them, effectively avoiding the heating dead zone in the air outlet channel 10a, ensuring the uniform heating of the air flow in the air outlet channel 10a, improving the hot air outlet effect of the blowing device 100, and further improving the practicality and reliability of the blowing device 100.

[0055] Reference Figure 2 and Figure 7 In one embodiment of the utility model, the heat insulation sheet 31 includes a heat insulation body 311 and a support member 313, the heating wire 33 is wound around the heat insulation body 311, and the heat insulation body 311 has two ends facing the air inlet 53 and the air outlet 10b respectively; the support member 313 is connected to the two ends of the heat insulation body 311 and is clamped to the air outlet body 10.

[0056] In this embodiment, the thermal insulation sheet 31 may include a thermal insulation body 311 and a support member 313. The thermal insulation body 311 may be a sheet-like structure with a relatively small thickness so that the heating wire 33 can be wound around the thermal insulation body 311. At this time, the upper and lower surfaces of the thermal insulation body 311 can be formed as the first surface and the second surface of the thermal insulation sheet 31, so that the heating wire 33 can be wound around the thermal insulation body 311 to form side-by-side heating wire 33 sections on the surface of the thermal insulation body 311, thereby ensuring that the heating mechanism 30 stably heats the outlet airflow in the air outlet channel 10a. By connecting the support members 313 at both ends of the heat insulation body 311, the support members 313 can be a rod or a sheet structure set corresponding to the width of the air outlet channel 10a, so that the support member 313 can be fixed to the end of the heat insulation body 311 by snapping or bonding, and then when the heating mechanism 30 is installed in the air outlet channel 10a, the support member 313 can be used to abut against the inner wall of the air outlet channel 10a or snap on the components of the air outlet body 10, so that the heat insulation body 311 can be suspended in the air outlet channel. 10a, ensuring that the airflow can stably pass through the gap between the heat-insulating body 311 and the inner wall of the air outlet channel 10a, thereby better ensuring the stable hot air outlet of the blowing device 100; at the same time, under the supporting effect of the supporting member 313, it can better avoid the possibility of interference and collision between the heat-insulating body 311 and the inner wall of the air outlet channel 10a when the blowing device 100 is subjected to external force, thereby preventing the heat generated by the heating wire 33 from being directly transferred to the air outlet body 10, thereby further improving the structural stability and reliability of the blowing device 100.

[0057] Reference Figure 6 In one embodiment of the utility model, the air outlet channel 10a is defined to have a first inner wall and a second inner wall opposite to each other, the first inner wall is arranged toward the first surface of the heat insulation sheet 31, and the second inner wall is arranged toward the second surface of the heat insulation sheet 31, and the spacing between the first inner wall and the heating wire 33 segment on the first surface is defined as W1, and the spacing between the second inner wall and the heating wire 33 segment on the second surface is defined as W2, 0.5≤W2 / W1≤1. And / or, the inner wall of the air outlet channel 10a is provided with a heat insulation layer.

[0058] In this embodiment, when the flow guide device 70 drives the air to form an airflow and enter the annular air inlet 53, the airflow is subjected to the cyclonic effect of the flow guide device 70, which causes the airflow to have a certain force of outward diffusion, so that the airflow flows in the direction toward the first inner wall after entering the air outlet channel 10a, thereby making it easy to make the airflow between the first inner wall and the first surface larger than the airflow between the second inner wall and the second surface. By limiting the ratio of the spacing W2 between the heating wire 33 segments on the second inner wall and the second surface to the spacing W1 between the heating wire 33 segments on the first inner wall and the first surface to be between 0.5 and 1, W1 can be set to be greater than W2, which is conducive to allowing the airflow with a larger flow rate flowing between the first surface and the first inner wall to have a larger circulation space for air discharge, and the airflow can be better affected by the heat energy radiated by the heating wire 33 segments on the first surface in the larger circulation space, avoiding the airflow with a larger flow rate in a narrow space from flowing too fast and reducing the heat carried by the airflow, thereby ensuring the stable hot air discharge of the blowing device 100. At the same time, by setting the circulation space between the second surface and the second inner wall to be smaller, it is possible to facilitate the airflow with a smaller flow rate to pass through the circulation space between the second surface and the second inner wall more smoothly, avoiding the airflow with a smaller flow rate flowing in a larger circulation space and causing a certain probability of flow velocity attenuation, further improving the air outlet stability and reliability of the blowing device 100, and achieving a better air outlet effect of the blowing device 100. The airflow flowing between the second surface and the second inner wall can flow close to the second surface under the effect of airflow diffusion, so that the airflow can be fully heated by the heating wire 33 section on the second surface, further ensuring that the outlet airflow is fully heated in the air outlet channel 10a, achieving uniform heating of the hot air flow, and further improving the structural stability and reliability of the blowing device 100.

[0059] Reference Figure 6 and Figure 7 In one embodiment of the present invention, W1 satisfies the condition: 0.5 mm ≤ W1 ≤ 6 mm. And / or, W2 satisfies the condition: 0.5 mm ≤ W2 ≤ 6 mm. And / or, the distance between any two adjacent heating wires 33 is defined as L, L ≥ 0.5 mm.

[0060] In this embodiment, the spacing W1 between the heating wire 33 section on the first surface and the first inner wall can be limited to between 0.5mm and 6mm, so that the blowing device 100 can be configured with a relatively suitable volume of the air outlet channel 10a for smooth flow of airflow and form a relatively uniformly heated hot airflow. Among them, by making W1 ≥ 0.5mm, for example, W1 = 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, etc., within this range, the spacing between the air outlet channel 10a on the first surface and the first inner wall is not too small, which is conducive to avoiding the heating wire 33 section on the first surface from contacting the first inner wall to transfer heat to the air outlet body 10 due to external force during the operation of the blowing device 100, and is conducive to making the airflow flow more smoothly through the gap between the first surface and the first inner wall, so that the blowing device 100 has a higher air flow rate and flow rate, and ensures the stable operation of the blowing device 100. At the same time, by making W1≤6mm, for example, W1=3mm, 4mm, 5mm, 6mm, etc., within this range, the distance between the first surface of the air outlet channel 10a and the first inner wall is not too large, which is conducive to avoiding the fact that the heat radiated by the heating wire 33 on the first surface to the area near the first inner wall is low, and there is a certain probability that the airflow flowing close to the first inner wall cannot receive heat energy well, and ensures that the heating mechanism 30 heats the outlet airflow stably and fully. Therefore, by making W1 meet the condition of 0.5mm≤W1≤6mm, the overall structural stability of the heating mechanism 30 and the air outlet body 10 can be better improved, while ensuring that the outlet airflow can flow more smoothly through the gap between the first surface and the first inner wall, and ensuring that the heating mechanism 30 stably heats the outlet airflow flowing through the gap, further improving the practicality and reliability of the blowing device 100.

[0061] Similarly, the spacing W2 between the heating wire 33 section on the second surface and the second inner wall can be limited to between 0.5mm and 6mm, so that the blowing device 100 can be configured with an air outlet channel 10a with a relatively suitable volume for smooth flow of airflow and form a hot airflow that is heated more evenly. Among them, by making W2 ≥ 0.5mm, for example, W2 = 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, etc., within this range, the spacing between the air outlet channel 10a on the second surface and the second inner wall is not too small, which is conducive to avoiding the heating wire 33 section on the second surface from contacting the second inner wall to transfer heat to the air outlet body 10 due to external force during the operation of the blowing device 100, and is conducive to making the airflow flow more smoothly through the gap between the second surface and the second inner wall, so that the blowing device 100 has a higher air flow rate and flow rate, and ensures the stable operation of the blowing device 100. At the same time, by making W2≤6mm, for example, W2=3mm, 4mm, 5mm, 6mm, etc., within this range, the distance between the second surface of the air outlet channel 10a and the second inner wall is not too large, which is conducive to avoiding the heat radiated by the heating wire 33 section on the second surface to the second inner wall is low, and there is a certain probability that the airflow flowing close to the second inner wall cannot receive heat energy well, ensuring that the heating mechanism 30 heats the outlet airflow stably and fully. Therefore, by making W2 meet the condition of 0.5mm≤W1≤6mm, the overall structural stability of the heating mechanism 30 and the air outlet body 10 can be better improved, while ensuring that the outlet airflow can flow more smoothly through the gap between the second surface and the second inner wall, and ensuring that the heating mechanism 30 stably heats the outlet airflow flowing through the gap, further improving the practicality and reliability of the blowing device 100.

[0062] In addition, the heating wire 33 is wound on the heat insulation sheet 31 and forms a plurality of heating wire 33 sections laid side by side on the first surface and the second surface of the heat insulation sheet 31. The gap between the heating wire 33 sections on the first surface or the second surface can be adjusted during the winding process to ensure that the heating mechanism 30 can heat the airflow in the air outlet channel 10a more stably and prevent the mutual interference between the heating wire 33 sections. Among them, the spacing L between any two adjacent heating wire 33 sections can be limited to a range greater than or equal to 0.5mm, for example, L can be made 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc. Within this range, any two adjacent heating wire 33 sections can maintain a certain spacing, which is conducive to better avoiding mutual interference and collision between adjacent heating wire 33 sections, preventing local overheating of the heating mechanism 30 and a certain probability of overloading and damage of the heating mechanism 30, ensuring the stable operation of the blowing device 100, and further improving the overall structural stability and reliability of the blowing device 100.

[0063] Secondly, the air outlet body 10 can lay a heat insulation layer on the inner wall of the air outlet channel 10a. The heat insulation layer can be made of materials with good heat insulation properties such as heat insulation silicone and asbestos. Under the action of the heat insulation layer, the heat generated by the heating mechanism 30 can be effectively concentrated and diffused in the air outlet channel 10a, which is beneficial to better avoid the heat generated by the heating mechanism 30 from being transferred to the air outlet body 10, causing the air outlet body 10 to overheat and affect the user's experience. At the same time, it can reduce heat loss, so that the heating mechanism 30 can apply heat to the outlet airflow more fully, which is beneficial to better reduce the power consumption of the heating mechanism 30 and further improve the practicality and reliability of the hot air component.

[0064] In one embodiment of the utility model, the projection formed by the air outlet body 10 along the air outlet direction is U-shaped. Alternatively, the projection formed by the air outlet body 10 along the air outlet direction is V-shaped. Alternatively, the projection formed by the air outlet body 10 along the air outlet direction is C-shaped.

[0065] In this embodiment, the cross-section of the air outlet body 10 is approximately U-shaped, V-shaped, C-shaped, etc. On the premise that the air outlet body 10 has an opening 10c, the shape can also be adaptively adjusted, such as changing the length and bending angle of the first air outlet portion 11 and the second air outlet portion 12.

[0066] Among them, the opening 10c is arranged at the top of the air outlet main body 10, the first air outlet portion 11 and the second air outlet portion 12 are bent to a certain extent, and the projection formed by the air outlet main body 10 along the air outlet direction is approximately U-shaped; the opening 10c is arranged at the top of the air outlet main body 10, the first air outlet portion 11 and the second air outlet portion 12 both extend along a straight line, and the projection formed by the air outlet main body 10 along the air outlet direction is approximately V-shaped; the opening 10c is arranged on the side of the air outlet main body 10, the first air outlet portion 11 and the second air outlet portion 12 are bent to a certain extent, and the projection formed by the air outlet main body 10 along the air outlet direction is approximately C-shaped.

[0067] Furthermore, the blowing device 100 can enable the air outlet body 10 to achieve a variety of cross-sectional shape settings, so that the blowing device 100 can be better adapted to a variety of parts to be dried while also meeting the requirements of aesthetics, which is conducive to better improving the practicality and reliability of the blowing device 100.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A blowing device, characterized in that: include: The air outlet body comprises a first air outlet portion and a second air outlet portion, the second air outlet portion is sleeved on the outer periphery of the first air outlet portion and forms an air outlet channel with the first air outlet portion, one end of the air outlet body forms an air outlet connected to the air outlet channel, and the air outlet body further comprises a first end plate and a second end plate arranged opposite to each other, the first end plate connects one end of the first air outlet portion and one end of the second air outlet portion, the second end plate connects the other end of the first air outlet portion and the other end of the second air outlet portion, an opening is formed between the first end plate and the second end plate, a accommodating cavity is formed on a side of the first air outlet portion facing away from the second air outlet portion and penetrating along the air outlet direction, and the accommodating cavity is connected to the opening; A heating mechanism is arranged in the air outlet channel, and the heating mechanism includes a heat insulating sheet and a heating wire. The heat insulating sheet is defined as having a first surface and a second surface opposite to each other. The heating wire is wound around the heat insulating sheet, and a plurality of heating wire segments arranged side by side are formed on the first surface and the second surface respectively. The heating wire segments extend along the airflow direction of the air outlet channel and are spaced apart from the inner wall of the air outlet channel.

2. The blowing device according to claim 1, characterized in that: The blowing device further comprises a fixed structure, the fixed structure is connected to the second air outlet portion, a drainage cavity is provided in the fixed structure, and the drainage cavity is connected to the air outlet channel; The blowing device also includes a drainage device, which is arranged in the drainage cavity and is used to drive the air flow through the drainage cavity into the air outlet channel.

3. The blowing device according to claim 2, characterized in that: An air inlet connected to the drainage cavity is provided on the outer peripheral side of the fixed structure, the drainage device is provided between the air inlet and the air outlet channel, the fixed structure is provided with a guide cone, the guide cone is provided in the drainage cavity and is arranged on the same horizontal plane as the air inlet, and a guide arc surface is provided on the outer periphery of the guide cone, and the guide arc surface is arranged toward the air inlet.

4. The blowing device according to claim 2, characterized in that: The air outlet body is further provided with a partition plate, which is arranged in the air outlet channel and divides the air outlet channel into an air outlet cavity and an installation cavity, and the drainage cavity is connected to the air outlet cavity; The blowing device further includes a control circuit board, which is disposed in the installation cavity and connected to the outer periphery of the first air outlet portion.

5. The blowing device according to claim 4, characterized in that: The partition plate is provided with a slot, and the slot is clamped and fixed to one end of the heat insulation sheet; And / or, the air outlet main body is also provided with an air outlet cover body, the air outlet cover body is clamped on one end of the air outlet main body and covers the air outlet, the air outlet cover body is provided with an annular air outlet hole, the annular air outlet hole is connected to the air outlet channel, the width of the annular air outlet hole is gradually reduced along the air flow direction, and one end of the thermal insulation sheet is clamped on the annular air outlet hole.

6. The blowing device according to any one of claims 1 to 5, characterized in that: The number of the heating mechanisms is at least two, and at least two of the heating mechanisms are sequentially and spaced apart from each other in the air outlet channel.

7. The blowing device according to claim 6, characterized in that: The distance between two adjacent heating mechanisms is defined as H, 2mm≤H≤10mm.

8. The blowing device according to claim 3, characterized in that: The thermal insulation sheet comprises: A heat-insulating body, the heating wire is wound around the heat-insulating body, and the heat-insulating body has two ends facing the air inlet and the air outlet respectively; A support member is connected to both ends of the heat insulation body and is clamped to the air outlet body.

9. The blowing device according to any one of claims 1 to 5, characterized in that: The air outlet channel is defined as having a first inner wall and a second inner wall opposite to each other, the first inner wall is arranged toward the first surface of the heat insulation sheet, the second inner wall is arranged toward the second surface of the heat insulation sheet, the spacing between the first inner wall and the heating wire segment on the first surface is defined as W1, the spacing between the second inner wall and the heating wire segment on the second surface is defined as W2, 0.5≤W2 / W1≤1; And / or, a heat insulation layer is provided on the inner wall of the air outlet channel.

10. The blowing device according to any one of claims 1 to 5, characterized in that: The projection formed by the air outlet body along the air outlet direction is U-shaped; Alternatively, the projection formed by the air outlet body along the air outlet direction is V-shaped; Alternatively, the projection formed by the air outlet body along the air outlet direction is C-shaped.

Images