Hot air components and blowing devices

Abstract

The utility model discloses a hot air component and a blowing device, wherein the hot air component includes an air outlet body and a heating mechanism, an air outlet channel is provided in the air outlet body, the air outlet body is defined as having two ends arranged opposite to each other, and the two ends of the air outlet body are respectively provided with an air inlet and an air outlet connected to the air outlet channel; the heating mechanism is arranged in the air outlet channel, the heating mechanism includes a heat insulation sheet and a heating wire, the heat insulation sheet is defined as having a first surface and a second surface opposite to 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. The technical solution of the utility model aims to reduce the heat loss of the hot air flow and improve the practicality and reliability of the hot air component.

Description

Technical Field

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

[0002] In the related art, a heating mechanism can usually be set in the internal air outlet air flow channel of the blowing device, and the heating mechanism can be used to heat the air flow so that the blowing device can blow out a hot air flow, thereby realizing the functions of the blowing device such as hot air drying or adjusting the indoor temperature.

[0003] However, in existing blowing devices, the heating mechanism can usually be fixed in the air outlet air flow channel using a heating wire bracket, and then a plurality of heating wire protrusions extending perpendicular to the air flow direction are arranged on the heating wire bracket, so that when the air flow flows through the heating mechanism, it contacts the heating wire protrusions to heat the air flow.

[0004] However, the heating mechanism forms multiple heating wire protrusions extending perpendicular to the airflow direction, which increases the longitudinal cross-sectional area of ​​the heating mechanism, causing the heating mechanism to cause certain obstructions to the flow of air in the air outlet air flow channel, which in turn causes the air flow to be easily turbulent when flowing in the air outlet air flow channel, making it easy for the air flow to collide with the inner wall of the air outlet air flow channel, thereby causing heat loss, reducing the thermal energy utilization rate and practicality of the blowing device. Utility Model Content

[0005] The main purpose of the utility model is to provide a hot air component and a blowing device, aiming to improve the arrangement of the heating mechanism in the hot air component, reduce the heat loss of the hot air flow, and improve the practicality and reliability of the hot air component.

[0006] To achieve the above-mentioned purpose, the hot air component proposed in the utility model includes an air outlet main body and a heating mechanism, the air outlet main body is provided with an air outlet channel, and the air outlet main body is defined as having two ends arranged opposite to each other, and the two ends of the air outlet main body are respectively provided with an air inlet and an air outlet connected to the air outlet channel; 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 opposite to 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.

[0007] Optionally, the longitudinal cross-section of the air outlet channel is annular, and the heat insulation sheet is hollow cylindrical and is arranged to correspond to the shape of the air outlet channel.

[0008] Optionally, the air outlet channel is defined to have 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, and 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, and the spacing between the second inner wall and the heating wire segment on the second surface is defined as W2, and 0.5≤W2 / W1≤1.

[0009] Optionally, 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 wire segments is defined as L, L ≥ 0.5 mm.

[0010] Optionally, the air outlet body includes a first cylinder and a second cylinder, a limiting connector is provided in the first cylinder, a plurality of first ribs are provided on the periphery of the limiting connector, and one end of the first rib facing away from the limiting connector is connected to the inner wall of the first cylinder; the second cylinder is detachably provided in the first cylinder and is snap-fitted with the limiting connector, a plurality of second ribs are provided on the outer wall of the second cylinder, one end of the second rib facing away from the second cylinder abuts against the inner wall of the first cylinder, and the outer wall of the second cylinder and the inner wall of the first cylinder are enclosed to form the air outlet channel. The limiting connector and the first rib are provided at the air outlet, the second rib is provided at the air inlet, and the side walls opposite to the first rib and the second rib are respectively provided with slots, and the two ends of the heat insulation sheet are snap-fitted with the slots of the first rib and the slots of the second rib, respectively.

[0011] Optionally, the hot air assembly includes at least two heating mechanisms, and the at least two heating mechanisms are arranged in the air outlet channel at intervals along a direction perpendicular to the air flow direction.

[0012] Optionally, the distance between two adjacent heating mechanisms is defined as H, 2mm≤H≤10mm.

[0013] Optionally, the thermal insulation sheet includes an insulation body and a support member, the heating wire is wound around the insulation body, and the 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 insulation body and abuts against the inner wall of the air outlet channel.

[0014] Optionally, a limit slot is provided on the inner wall of the air outlet channel, and the support member is connected to the limit slot. And / or, a heat insulation layer is provided on the inner wall of the air outlet channel.

[0015] The utility model also provides a blowing device, which includes a drainage device and a hot air component. The hot air component is the hot air component described above, and the drainage device is connected to the hot air component.

[0016] The technical solution of the utility model forms a heating mechanism by winding the heating wire on the heat insulation sheet, so that the heating wire can form a plurality of heating wire segments laid side by side on the first surface and the second surface of the heat insulation sheet respectively, so that when the heating mechanism is installed in the air outlet channel of the air outlet body, the heating wire segment and the air flow direction in the air outlet channel can be made parallel to each other, and then the heating mechanism with a smaller overall thickness can be used to heat the airflow flowing through the air outlet channel in the air outlet channel, effectively avoiding the mutual collision and interference between the heating mechanism and the airflow, and reducing the heat energy loss of the airflow in the air outlet channel after being heated. At the same time, the direction of the heat energy radiated by the heating wire segment toward the inner wall of the air outlet channel on the first surface and the second surface can be perpendicular to the airflow direction, so that the airflow can carry the heat energy more smoothly and discharge from the air outlet during the flow in the air outlet channel, better improve the heat energy utilization rate of the hot air component, realize the full utilization of the heat energy of the heating mechanism, help reduce the power consumption of the heating mechanism, and improve the practicality and reliability of the hot air component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a hot air assembly of the utility model;

[0019] Figure 2 for Figure 1 A structural exploded view of an embodiment of a hot air assembly;

[0020] Figure 3 for Figure 1 A cross-sectional view of an embodiment of a hot air assembly;

[0021] Figure 4 for Figure 1 A flow diagram of the outlet air flow in the hot air component of an embodiment of the hot air component;

[0022] Figure 5 for Figure 1 A structural exploded view of another embodiment of a hot air assembly;

[0023] Figure 6 for Figure 1A structural schematic diagram of an embodiment of a heating mechanism of a hot air component.

[0024] Description of Figure Numbers:

[0025]

[0026]

[0027] 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

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the existing blowing device, the heating mechanism can usually be fixed in the air outlet air flow channel by using a heating wire bracket, and then a plurality of heating wire protrusions extending perpendicular to the air flow direction are arranged on the heating wire bracket, so that when the air flow passes through the heating mechanism, it contacts with the heating wire protrusions to heat the air flow. However, the formation of a plurality of heating wire protrusions extending perpendicular to the air flow direction by the heating mechanism will increase the longitudinal cross-sectional area of ​​the heating mechanism, causing the heating mechanism to cause certain obstructions to the flow of the air flow in the air outlet air flow channel, and further causing the air flow to be easily turbulent when flowing in the air outlet air flow channel, making it easy for the air flow to collide with the inner wall of the air outlet air flow channel, thereby causing heat loss, reducing the thermal energy utilization rate and practicality of the blowing device. In view of the above problems, the utility model proposes a hot air component 100.

[0033] Reference Figures 1 to 6 In the embodiment of the utility model, the hot air component 100 includes an air outlet body 10 and a heating mechanism 30. The air outlet body 10 is provided with an air outlet channel 10a. The air outlet body 10 is defined as having two ends arranged opposite to each other. The two ends of the air outlet body 10 are respectively provided with an air inlet 10b and an air outlet 10c connected to the air outlet channel 10a; the heating mechanism 30 is arranged in the air outlet channel 10a. The heating mechanism 30 includes a heat insulation sheet 31 and a heating wire 33. The heat insulation sheet 31 is defined as having a first surface and a second surface opposite to each other. The heating wire 33 is wound around the heat insulation 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. The heating wire 33 sections extend along the air flow direction of the air outlet channel 10a and are spaced apart from the inner wall of the air outlet channel 10a.

[0034] It can be understood that, by arranging a heating mechanism 30 in the air outlet channel 10a of the hair dryer, a hair dryer, a hand heater and other devices, a fan and other drainage devices can be used to drive the air in the environment to form an airflow through the air outlet channel 10a, so that the airflow is heated by the heating mechanism 30 to form a hot airflow and blown out of the hair dryer, so that the hair dryer can use the hot airflow to dry the hair to be dried, or the hair dryer can generate a hot airflow to act on the environment to change the indoor temperature, thereby ensuring the stable operation of the hair dryer.

[0035] In the present application, the hot air component 100 can be installed in a blowing device, so that the air inlet 10b of the air outlet body 10 can be connected to the air outlet end of the drainage device. The drainage device can be a fan, etc. The drainage device can be used to drive the air in the environment into the drainage device. After the airflow is formed by the drainage device, the airflow can be made to pass through the air inlet 10b into the air outlet channel 10a, and then flow through the heating mechanism 30 and be blown out from the air outlet 10c, thereby achieving the hot air blowing effect of the blowing device. Among them, the heating mechanism 30 can wind a heating wire 33 on the insulation sheet 31. The insulation sheet 31 can be a sheet structure made of mica sheet or other materials with certain insulation properties. The 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 insulation sheet 31, so that a plurality of heating wire 33 sections laid side by side along the length direction of the insulation sheet 31 can be formed on the first surface and the second surface of the 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 insulation sheet 31 can be set along the airflow direction, so that the heating wire 33 sections on the insulation sheet 31 can be set parallel to the airflow flowing in the air outlet channel 10a.

[0036] 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 thus making the outlet airflow maintain a higher flow rate and heat out of the air outlet 10c, 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 hot air component 100, and effectively improving the practicality and reliability of the hot air component 100.

[0037] The heating mechanism 30 utilizes a heating wire 33 segment extending along the airflow direction and arranged on the first surface and the second surface of the heat insulation sheet 31, and utilizes the heating wire 33 segment to radiate heat toward the inner wall of the air outlet channel 10a, so that the airflow carries heat energy when flowing through the gap between the heating wire 33 segment and the inner wall of the air outlet channel 10a and discharges air through the air outlet 10c to realize the hot air effect of the blowing device. 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 that the gap between the heating wire 33 segment and the inner wall of the air outlet channel 10a is too large, which may cause a certain probability that part of the airflow away from the heating wire 33 segment does not receive enough heat, resulting in uneven heat of the air outlet airflow; or avoiding that the gap between the heating wire 33 segment and the inner wall of the air outlet channel 10a is 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 hot air assembly 100.

[0038] The technical solution of the utility model forms a heating mechanism 30 by winding a heating wire 33 on a heat insulating sheet 31, so that the heating wire 33 can form a plurality of heating wire 33 sections laid side by side on the first surface and the second surface of the heat insulating sheet 31, respectively, so that when the heating mechanism 30 is installed in the air outlet channel 10a of the air outlet main body 10, the heating wire 33 sections can be made parallel to the air flow direction in the air outlet channel 10a, and then the heating mechanism 30 with a smaller overall thickness can be used to heat the airflow passing through the air outlet channel 10a in the air outlet channel 10a, thereby effectively avoiding mutual collision and interference between the heating mechanism 30 and the air outlet airflow, and reducing the heat energy loss of the airflow in the air outlet channel 10a after being heated. At the same time, the direction in which the heating wire 33 section radiates heat energy toward the inner wall of the air outlet channel 10a on the first surface and the second surface can be perpendicular to the air flow direction, so that the air flow can carry heat energy more smoothly and discharge from the air outlet 10c during the flow in the air outlet channel 10a, thereby better improving the thermal energy utilization rate of the hot air component 100 and fully utilizing the thermal energy of the heating mechanism 30, which is beneficial to reducing the power consumption of the heating mechanism 30 and improving the practicality and reliability of the hot air component 100.

[0039] Reference Figure 2 and Figure 5 In one embodiment of the present invention, the longitudinal cross-section of the air outlet channel 10a is annular, and the shape of the heat insulation sheet 31 is hollow cylindrical and is arranged corresponding to the shape of the air outlet channel 10a.

[0040] In this embodiment, the air outlet main body 10 can form an annular through hole inside the air outlet main body 10, so that the annular through hole forms an air outlet channel 10a. At this time, the thermal insulation sheet 31 can be bent by a sheet structure to form a hollow cylindrical structure, and the hollow cylindrical structure formed by the thermal insulation sheet 31 corresponds to the structural setting of the air outlet channel 10a, so that the thermal insulation sheet 31 can be stably set in the air outlet channel 10a, and the heating wire 33 sections laid side by side on the first surface and the second surface of the thermal insulation sheet 31 maintain a certain gap with the inner wall of the air outlet channel 10a, thereby ensuring that the airflow stably flows through the hot air component 100 to achieve hot air outlet. By configuring the air outlet channel 10a to be an annular through hole and configuring the heat insulation sheet 31 to be a hollow cylinder, the hot air component 100 can be better configured with an annular air outlet 10c. Compared with the long strip-shaped air outlet 10c, the annular air outlet 10c can better adapt to the user's usage needs, reduce the waste of the outlet air flow, and help to better improve the utilization rate of the outlet air flow of the blowing device. At the same time, the annular air outlet method can also better reduce the overall structure of the hot air component 100, which is beneficial to reducing the occupied space of the hot air component 100, facilitating the miniaturization design of the hot air component 100, and further improving the practicality and reliability of the hot air component 100.

[0041] Reference Figure 3 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 disposed toward the first surface of the heat insulation sheet 31, and the second inner wall is disposed toward the second surface of the heat insulation sheet 31. 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.

[0042] In this embodiment, an air outlet channel 10a is formed by opening an annular through hole in the air outlet main body 10, so that a first inner wall and a second inner wall relative to each other are formed in the air outlet channel 10a. When the heating mechanism 30 is installed in the air outlet channel 10a, the heat insulation sheet 31 can be arranged between the first inner wall and the second inner wall, so that the airflow can stably flow through the gap between the first inner wall and the first surface and the gap between the second inner wall and the second surface for air outlet.

[0043] Among them, when the drainage device drives the air to form an airflow and enter the annular air inlet 10b, the airflow has a certain outward diffusion force due to the cyclonic effect of the drainage device, so that the airflow enters the air outlet channel 10a and flows in the direction toward the first inner wall, 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 larger 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 hot air component 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 make the airflow with a smaller flow rate 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 hot air component 100, and achieving a better air outlet effect of the blowing device. 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 hot air component 100.

[0044] Reference Figure 3 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.

[0045] 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 hot air component 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 air flow. 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 hot air component 100 being subjected to external force during operation and having a certain probability of causing the heating wire 33 section on the first surface to contact the first inner wall to transfer heat to the air outlet body 10, and is conducive to allowing the airflow to flow more smoothly through the gap between the first surface and the first inner wall, so that the blowing device has a higher air flow rate and flow rate, and ensures the stable operation of the blowing device. 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 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 airflow can flow more smoothly through the gap between the first surface and the first inner wall, and ensuring that the heating mechanism 30 heats the airflow flowing through the gap stably, further improving the practicality and reliability of the hot air assembly 100.

[0046] 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 hot air component 100 can be configured with an air outlet channel 10a with a relatively suitable volume for smooth flow of airflow and form a relatively uniformly heated hot airflow. 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 hot air component 100 being subjected to external force during operation and having a certain probability of causing the heating wire 33 section on the second surface to contact the second inner wall and transfer heat to the air outlet body 10, and is conducive to allowing the airflow to flow more smoothly through the gap between the second surface and the second inner wall, so that the blowing device has a higher air flow rate and flow rate, and ensures the stable operation of the blowing device. 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 hot air component 100.

[0047] In addition, the heating wire 33 is wound on the heat insulation sheet 31 and forms a plurality of heating wire 33 segments 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 segments 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 segments. Among them, the spacing L between any two adjacent heating wire 33 segments 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 segments can maintain a certain spacing, which is conducive to better avoiding mutual interference and collision between adjacent heating wire 33 segments, 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 hot air component 100, and further improving the overall structural stability and reliability of the hot air component 100.

[0048] Reference Figure 2 and Figure 5 In one embodiment of the utility model, the air outlet body 10 includes a first cylinder 11 and a second cylinder 13. A limiting connecting piece 111 is provided in the first cylinder 11. A plurality of first ribs 113 are provided on the outer periphery of the limiting connecting piece 111. One end of the first rib 113 facing away from the limiting connecting piece 111 is connected to the inner wall of the first cylinder 11. The second cylinder 13 is detachably arranged in the first cylinder 11 and is clamped with the limiting connecting piece 111. A plurality of second ribs 131 are provided on the outer wall of the second cylinder 13. One end of the second rib 131 facing away from the second cylinder 13 abuts against the inner wall of the first cylinder 11. The outer wall of the second cylinder 13 and the inner wall of the first cylinder 11 enclose an air outlet channel 10a. The limiting connector 111 and the first rib 113 are arranged at the air outlet 10c, the second rib 131 is arranged at the air inlet 10b, and the opposite side walls of the first rib 113 and the second rib 131 are respectively provided with a slot 15, and the two ends of the heat insulation sheet 31 are respectively connected to the slot 15 of the first rib 113 and the slot 15 of the second rib 131.

[0049] In this embodiment, the air outlet main body 10 can be formed by combining a first cylinder 11 and a second cylinder 13 that can be detachably arranged, wherein the outer diameter of the second cylinder 13 is smaller than the inner diameter of the first cylinder 11, so that when the second cylinder 13 is coaxially installed with the first cylinder 11 or centrifugally installed, an air outlet channel 10a with a certain space can be formed between the inner wall of the first cylinder 11 and the outer wall of the second cylinder 13. At this time, one end of the first cylinder 11 and one end of the second cylinder 13 can be spaced apart to form an air inlet 10b connected to the air outlet channel 10a, and the other end of the first cylinder 11 and the other end of the second cylinder 13 can be spaced apart to form an air outlet 10c connected to the air outlet channel 10a.

[0050] By setting a limiting connector 111 in the first cylinder 11, the limiting connector 111 can be a sleeve that is plugged and fixed with the second cylinder 13, and a first rib 113 can be set on the outer periphery of the limiting connector 111. The first rib 113 is used to connect the outer wall of the limiting connector 111 and the inner wall of the first cylinder 11, so that when the second cylinder 13 is inserted into the first cylinder 11, the second cylinder 13 can be plugged and fixed on the limiting connector 111, so that the first cylinder 11 and the second cylinder 13 can be relatively stably assembled, and the second cylinder 13 can be prevented from shifting in the first cylinder 11, thereby ensuring the stable air outlet effect of the hot air assembly 100 and further improving the structural stability and reliability of the hot air assembly 100. In addition, a second rib 131 may be provided on the outer periphery of the second cylinder 13, and the size of the second rib 131 may be set corresponding to the spacing between the inner wall of the first cylinder 11 and the outer wall of the second cylinder 13, so that the second cylinder 13 can use the second rib 131 to abut against the inner wall of the first cylinder 11, thereby achieving relatively stable assembly of the first cylinder 11 and the second cylinder 13, preventing the second cylinder 13 from shifting in the first cylinder 11, ensuring the stable air outlet effect of the hot air assembly 100, and further improving the structural stability and reliability of the hot air assembly 100.

[0051] Among them, the air outlet body 10 can set the limiting connector 111 and the first rib 113 at the air outlet 10c, and set the second rib 131 at the air inlet 10b, so as to better avoid the first rib 113 and the second rib 131 occupying the space of the air outlet channel 10a, ensure that the airflow can flow and be heated smoothly in the air outlet channel 10a, reduce the collision and heat loss of the airflow in the air outlet channel 10a, and further improve the structural stability and reliability of the hot air assembly 100. In addition, since the first rib 113 and the second rib 131 are arranged to separate the air outlet channel 10a, when the heating mechanism 30 is installed in the air outlet channel 10a, the heat insulation sheet 31 can be clamped and fixed on the first rib 113 and the second rib 131, to ensure the relative fixed assembly of the heating mechanism 30 and the air outlet body 10, prevent the heating mechanism 30 from deviating in the air outlet channel 10a, ensure the stable operation of the hot air assembly 100, and further improve the overall structural stability and reliability of the hot air assembly 100. At this time, a slot 15 can be set on the side wall of the first rib 113 facing the second rib 131, and a slot 15 can be set on the side wall of the second rib 131 facing the first rib 113, and then the slot 15 on the first rib 113 and the slot 15 on the second rib 131 can be used to respectively clamp the opposite ends of the thermal insulation plate 31 to achieve a stable connection between the heating mechanism 30 and the air outlet main body 10. At the same time, under the supporting and fixing effect of the first rib 113 and the second rib 131 on the thermal insulation plate 31, the heating wire 33 section formed on the thermal insulation plate 31 can maintain a certain gap with the inner wall of the first cylinder 11 and the outer wall of the second cylinder 13, thereby ensuring that the outlet airflow can stably flow through the air outlet channel 10a and carry the heat released by the heating mechanism 30, thereby further improving the overall structural stability and reliability of the hot air assembly 100.

[0052] Therefore, by utilizing the mutually detachable first cylinder 11 and the second cylinder 13 to form the air outlet main body 10, and arranging a corresponding supporting connection structure between the first cylinder 11 and the second cylinder 13 to ensure the relative stability of the first cylinder 11 and the second cylinder 13 after installation, and realizing the fixation of the air outlet main body 10 to the heat insulation sheet 31, the overall structural stability of the hot air assembly 100 can be better guaranteed. At the same time, during the production process and the maintenance process, the mutual disassembly of the first cylinder 11 and the second cylinder 13 can be utilized to more conveniently realize the disassembly and replacement of the heating mechanism 30 in the air outlet channel 10a, thereby further improving the disassembly and practicability of the hot air assembly 100.

[0053] Reference Figure 5 In one embodiment of the present invention, the hot air assembly 100 includes at least two heating mechanisms 30, and the at least two heating mechanisms 30 are arranged in the air outlet channel 10a at intervals along a direction perpendicular to the air flow direction.

[0054] In this embodiment, the hot air component 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 outlet channel 10a, so as to better achieve large air volume outlet of the hot air component 100. Among them, the hot air component 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 hot air component 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 air flow 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 hot air component 100 and achieving a stable and reliable hot air blowing effect of the blowing device.

[0055] 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 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 hot air component 100, further improving the practicality and reliability of the hot air component 100.

[0056] In an embodiment of the present invention, the distance between two adjacent heating mechanisms 30 is defined as H, 2 mm ≤ H ≤ 10 mm.

[0057] In this embodiment, when at least two heating mechanisms 30 are configured in the hot air assembly 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, while ensuring that the heating mechanisms 30 can better release heat in the entire air outlet channel 10a, further improving the practicality and reliability of the hot air assembly 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 is 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 hot air component 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 hot air component 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, and further improving the practicality and reliability of the hot air assembly 100.

[0058] Reference Figure 2 , Figure 3 and Figure 6 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 10b and the air outlet 10c respectively; the support member 313 is connected to the two ends of the heat insulation body 311 and abuts against the inner wall of the air outlet channel 10a.

[0059] 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 support members 313 at both ends of the heat insulation body 311 respectively, the support member 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, 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 insulation body 311 and the inner wall of the air outlet channel 10a, and better ensuring the stable hot air outlet of the blowing device; at the same time, under the supporting effect of the support member 313, it can be better avoided that when the blowing device is subjected to external force, there is a certain probability that the heat insulation body 311 and the inner wall of the air outlet channel 10a interfere and collide, and the heat generated by the heating wire 33 is prevented from being directly transferred to the air outlet body 10, thereby further improving the structural stability and reliability of the hot air assembly 100.

[0060] Reference Figure 2 and Figure 6 In one embodiment of the utility model, a limiting slot 133 is provided on the inner wall of the air outlet channel 10a, and the support member 313 is connected to the limiting slot 133. And / or, a heat insulation layer is provided on the inner wall of the air outlet channel 10a.

[0061] In this embodiment, the air outlet main body 10 can also be provided with a limiting card slot 133 on the inner wall of the air outlet channel 10a. The slot width of the limiting card slot 133 can be set corresponding to the width dimension of the support member 313 of the thermal insulation plate 31, so that when the heating mechanism 30 is assembled into the air outlet main body 10, the support member 313 can be clamped into the limiting card slot 133, and fixed in the air outlet channel 10a as the limiting card slot 133 slides. Then, the positioning and installation of the heating mechanism 30 can be achieved under the action of the limiting card slot 133, so that the heating mechanism 30 can be firmly set in the air outlet channel 10a, preventing the heating mechanism 30 from being offset by external force during operation, and further improving the overall structural stability and reliability of the hot air assembly 100.

[0062] In addition, the air outlet main 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 main body 10, causing the air outlet main 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 more fully apply heat to the outlet airflow, 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 assembly 100.

[0063] The utility model also proposes a blowing device, which includes a drainage device and a hot air component 100. The specific structure of the hot air component 100 refers to the above embodiment. Since the blowing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0064] 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 inventive 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 hot air component, characterized in that: include: An air outlet body, wherein an air outlet channel is provided in the air outlet body, and the air outlet body is defined as having two ends arranged opposite to each other, and the two ends of the air outlet body are respectively provided with an air inlet and an air outlet connected to the air outlet channel; 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 hot air assembly according to claim 1, characterized in that: The longitudinal section of the air outlet passage is annular in shape, and the heat insulation sheet is hollow cylindrical in shape and is arranged corresponding to the shape of the air outlet passage.

3. The hot air assembly according to claim 2, characterized in that: The air outlet channel 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, and the second inner wall is arranged toward the second surface of the heat insulation sheet; The distance between the first inner wall and the heating wire segment on the first surface is defined as W1, and the distance between the second inner wall and the heating wire segment on the second surface is defined as W2, and 0.5≤W2 / W1≤1.

4. The hot air assembly according to claim 3, characterized in that: W1 meets the following conditions: 0.5mm≤W1≤6mm; And / or, W2 satisfies the following conditions: 0.5 mm ≤ W2 ≤ 6 mm; And / or, the distance between any two adjacent heating wire segments is defined as L, where L≥0.5 mm.

5. The hot air assembly according to claim 2, characterized in that: The air outlet body comprises: A first cylinder, wherein a limiting connection piece is disposed in the first cylinder, a plurality of first ribs are disposed on the outer periphery of the limiting connection piece, and an end of the first rib facing away from the limiting connection piece is connected to the inner wall of the first cylinder; a second cylinder, the second cylinder being detachably disposed in the first cylinder and being clamped with the position-limiting connector, a plurality of second ribs being disposed on an outer wall of the second cylinder, an end of the second rib facing away from the second cylinder being in contact with an inner wall of the first cylinder, and the outer wall of the second cylinder and the inner wall of the first cylinder being enclosed to form the air outlet channel; The limiting connecting piece and the first rib are arranged at the air outlet, the second rib is arranged at the air inlet, the side walls opposite to the first rib and the second rib are respectively provided with slots, and the two ends of the heat insulation sheet are respectively connected to the slots of the first rib and the slots of the second rib.

6. The hot air assembly according to any one of claims 1 to 5, characterized in that: The hot air component comprises at least two heating mechanisms, and the at least two heating mechanisms are arranged in the air outlet channel at intervals along a direction perpendicular to the air flow direction.

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

8. The hot air assembly according to any one of claims 1 to 5, 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 abuts against an inner wall of the air outlet channel.

9. The hot air assembly according to claim 8, characterized in that: A limit slot is provided on the inner wall of the air outlet channel, and the support member is clamped in the limit slot; And / or, a heat insulation layer is provided on the inner wall of the air outlet channel.

10. A blowing device, characterized in that: The blowing device includes a drainage device and a hot air component, the hot air component is the hot air component according to any one of claims 1 to 9, and the drainage device is connected to the hot air component.

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