Electric hair dryer

Abstract

The utility model discloses an electric hair dryer which comprises a dryer body, a first air inlet channel and a second air inlet channel are arranged in the dryer body, the first air inlet channel is provided with a first fan, the second air inlet channel is provided with a second fan, a first heating channel and a second heating channel are further arranged in the dryer body, and the first air inlet channel is communicated with the first heating channel. The second air inlet channel communicates with the second heating channel, and the first heating channel surrounds the periphery of the second heating channel. The utility model provides an electric hair dryer which solves the problems of uneven air outlet and local overheating caused by the fact that a first heating channel and a second heating channel are arranged side by side up and down, an annular air channel is formed by enabling the first heating channel to surround the periphery of the second heating channel, air flow can be heated relatively evenly when in the annular air channel, and therefore the air flow can be heated more evenly. According to the air conditioner, uniform air outlet can be provided, local overheating possibly generated when air is directly blown to the head of a user is effectively avoided, and the user obtains good user experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of home appliances, in particular to an electric hair dryer. BACKGROUND

[0002] As an indispensable household appliance in daily life, the main function of the hair dryer is to generate hot air to quickly dry and style hair through the coordinated work of the built-in motor, fan and heating assembly. However, the design of the traditional hair dryer is often limited by its single internal structure, resulting in certain limitations in efficiency. In order to improve the efficiency of the hair dryer, the traditional method mainly relies on increasing the power and size of the motor and heating assembly. However, this approach not only significantly increases the production cost, but also causes energy waste, and at the same time, increases the size of the hair dryer, reducing the convenience of use. Users often need a long time to dry their hair, especially when facing thick or long hair, and this inefficient drying experience undoubtedly adds to the user's annoyance.

[0003] The prior art CN207693144U discloses a "multi-air duct hair dryer", which discloses a multi-air duct hair dryer, comprising a shell, a first channel and a second channel are arranged side by side in the shell, the first channel comprises a first air inlet and a first air outlet, the second channel comprises a second air inlet and a second air outlet, the above-mentioned application increases the speed of drying hair by arranging two fans in the shell, but the first channel and the second channel are arranged side by side, which will cause uneven air distribution and local overheating. When only one fan is used to dry hair, some hair will dry faster and some will dry slower. SUMMARY

[0004] The purpose of the utility model is to provide an electric hair dryer, which solves the problem of uneven air distribution and local overheating caused by the side-by-side arrangement of the first heating channel and the second heating channel. By forming a ring-shaped air duct around the second heating channel, the airflow will be heated relatively uniformly in the ring-shaped air duct, which not only provides uniform air output, but also effectively avoids local overheating when blowing directly to the user's head, providing a good user experience.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric hair dryer, comprising a body, a first air inlet channel and a second air inlet channel are arranged in the body, the first air inlet channel is provided with a first fan, the second air inlet channel is provided with a second fan, the body is further provided with a first heating channel and a second heating channel, the first air inlet channel and the first heating channel are communicated, the second air inlet channel and the second heating channel are communicated, and the first heating channel is arranged around the outer periphery of the second heating channel.

[0006] The utility model discloses the following advantages are obtained after adopting the technical scheme: two independent first air inlet channels and second air inlet channels are arranged in the body, the first air inlet channel and the second air inlet channel are connected with the first heating channel and the second heating channel respectively, the air flow is controlled by the first fan and the second fan respectively, the air flow entering the body can be heated independently, the first heating channel surrounds the outer periphery of the second heating channel, forming an annular air duct, which can provide more uniform air outlet, when the air flows in the annular air duct, it will be heated relatively uniformly, effectively avoiding the problem of local overheating or uneven wind force when blowing directly to the user's head, improving the comfort of blow-drying and the efficiency of blow-drying, and shortening the time required for blow-drying hair.

[0007] Further, a heating support is arranged in the body, the heating support comprises an outer ring body and an intermediate ring body, the outer ring body is located at the outer periphery of the intermediate ring body, and the first heating channel is formed between the outer ring body and the intermediate ring body, and the second heating channel is located at the inner side of the intermediate ring body.

[0008] According to the foregoing technical scheme, the heating support is arranged in the body, the outer ring body is arranged at the outer periphery of the intermediate ring body, the first heating channel is formed between the outer ring body and the intermediate ring body, and the positional relationship between the outer ring body and the intermediate ring body guides the flow direction of the air flow, which is helpful to promote the formation of the annular air duct, when the air is sucked into the body and passes through the heating support, it will be blown out along the annular first heating channel, which is helpful to make the air flow distribution more uniform, and the second heating channel is located at the inner side of the intermediate ring body, so that the air flow in the second heating channel is more concentrated and compact, the dispersion of the air flow is reduced, and the utilization rate of the air flow and the blow-drying efficiency are improved.

[0009] Further, a plurality of first rib plates are connected between the outer ring body and the intermediate ring body, and the first rib plates separate the first heating channel into a plurality of first sub-channels.

[0010] According to the foregoing technical scheme, the plurality of first rib plates connect the outer ring body and the intermediate ring body, forming a stable support structure, under the action of high temperature and wind force, the heating support is prone to deformation, the first rib plates enhance the stability of the heating support, ensuring the shape and size stability of the first heating channel, after the first rib plates separate the first heating channel into a plurality of first sub-channels, the air flow in each sub-channel is more independent, and the air flow is more easily heated due to the reduced air volume, thereby improving the air heating efficiency, so that the air outlet speed can be appropriately increased under the same temperature requirement, and meanwhile, a single annular channel is prone to vortex flow, resulting in uneven air flow distribution, and the plurality of first sub-channels can effectively reduce the generation of vortex flow, so that the air flow speed and temperature distribution are more uniform.

[0011] Further, the first heating channel comprises a first heating element, and the first heating element is arranged on the first rib plate, or on the inner side of the outer ring body, or on the outer side of the middle ring body.

[0012] By using the foregoing technical scheme, the first heating element is arranged on the plurality of first rib plates, or on the inner side of the outer ring body, or on the outer side of the middle ring body, so that the airflow can be in full contact with the first heating element when flowing through the first heating channel, thereby achieving a uniform heating effect.

[0013] Further, the heating support is internally provided with an inner ring body, and the inner ring body is located on the inner side of the middle ring body, and the middle ring body and the inner ring body form a ring-shaped second heating channel.

[0014] By using the foregoing technical scheme, the heating support is composed of the outer ring body, the middle ring body and the inner ring body, the first heating channel is formed between the outer ring body and the middle ring body, and the second heating channel is formed between the middle ring body and the inner ring body, and the positional relationship among the outer ring body, the middle ring body and the inner ring body guides the flow direction of the airflow, thereby forming a double-layer ring-shaped air duct, and when the air is sucked into the body and passes through the heating support, the air will be blown out along the ring-shaped first heating channel and / or the second heating channel, which helps to make the airflow speed and temperature distribution more uniform.

[0015] Further, a plurality of second rib plates are connected between the middle ring body and the inner ring body, and the second rib plates separate the second heating channel into a plurality of second sub-channels.

[0016] By using the foregoing technical scheme, the plurality of second rib plates connect the inner ring body and the middle ring body, thereby forming a stable support structure, and under the action of high temperature and wind force, the heating support is prone to deformation, and the second rib plates enhance the stability of the heating support, thereby ensuring the shape and size stability of the second heating channel, and after the second rib plates separate the second heating channel into the plurality of second sub-channels, the airflow in each sub-channel is more independent, and the air volume is reduced and is more easily heated, thereby improving the heating efficiency of the air, so that the air outlet speed can be appropriately increased under the same temperature requirement, and meanwhile, a single ring-shaped channel is prone to vortex flow, thereby causing uneven airflow distribution, and the plurality of second sub-channels can effectively reduce the generation of vortex flow, thereby making the airflow speed and temperature distribution more uniform.

[0017] Further, the second heating channel comprises a second heating element, and the second heating element is arranged on the second rib plate, or on the inner side of the middle ring body, or on the outer side of the inner ring body.

[0018] By using the foregoing technical scheme, the second heating element is arranged on the plurality of second rib plates, or on the inner side of the outer ring body, or on the outer side of the middle ring body, so that the airflow can be in full contact with the second heating element when flowing through the second heating channel, thereby achieving a uniform heating effect.

[0019] Further, the inner ring body is internally provided with a negative ion generator.

[0020] With the foregoing technical scheme, the inner ring body is located at the center position of the heating support, when the airflow is blown out, the negative ions generated by the negative ion generator are affected by the negative pressure and are sucked out, ensuring the uniformity of the distribution of negative ions in the blown-out airflow. The negative ions can neutralize the positive charges on the hair, reduce the occurrence of static electricity, prevent the hair from becoming frizzy and difficult to comb due to static electricity, make the hair more smooth and supple, and can also actively combine with harmful substances such as dust and bacteria in the air, so that they are settled or lose activity. In the process of using the hair dryer, the negative ions can be continuously released into the surrounding environment, improve the scalp activity, promote the metabolism of the scalp, reduce hair loss, and promote the healthy growth of the hair.

[0021] Further, the heating support is provided with an air outlet cover, the air outlet cover includes a side portion and an end portion, the side portion is sleeved on the outer periphery of the heating support and is fixedly connected with the heating support, the end portion is located at the front end of the side portion, the end portion is provided with a first air outlet and a second air outlet, the first air outlet surrounds the outer periphery of the second air outlet, the first air outlet is in communication with the first heating channel to form a ring-shaped first air outlet channel, and the second air outlet is in communication with the second heating channel to form a second air outlet channel.

[0022] With the foregoing technical scheme, the air outlet cover is sleeved on the outer periphery of the heating support and is fixedly connected with the heating support, the side portion of the air outlet cover wraps the side wall of the heating support, the end portion located at the front end of the side portion is provided with the first air outlet and the second air outlet, the first air outlet surrounds the outer periphery of the second air outlet, and is in communication with the first heating channel and the second heating channel respectively, the airflow in the first heating channel is blown out from the first air outlet, the airflow in the second heating channel is blown out from the second air outlet, forming independent air outlet channels, reducing turbulence and improving the uniformity of the air outlet.

[0023] Further, the rear end face of the end portion is provided with a rear protruding annular rib between the edges of the first air outlet and the second air outlet, the annular rib abuts against the heating support to separate the first air outlet channel and the second air outlet channel.

[0024] With the foregoing technical scheme, the rear end face of the end portion is provided with a rear protruding annular rib between the edges of the first air outlet and the second air outlet, the annular rib separates the first air outlet channel and the second air outlet channel, preventing the airflow from interfering with each other and mixing between the two channels, the annular rib abuts against the heating support to provide additional support for the air outlet cover, enhancing the connection strength between the air outlet cover and the heating support, and improving the stability of the entire hair dryer structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further described below in combination with the drawings:

[0026] Figure 1 is a schematic view of an electric hair dryer of the utility model;

[0027] Figure 2 is a schematic view of a heating support of the utility model;

[0028] Figure 3 is an assembly schematic view of the heating support and the air outlet cover of the utility model;

[0029] Figure 4 is a sectional schematic view of an electric hair dryer of the utility model;

[0030] Figure 5 is an assembly schematic view of the heating support and the air guide of the utility model;

[0031] Figure 6 is an air outlet schematic view of an electric hair dryer of the utility model;

[0032] Figure 7 is a schematic view of an air guide of the utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0034] The terms "first", "second" and the like (if any) in the description and claims of the utility model are used to distinguish similar objects, not to describe a specific order or sequence, even if "second" is used before a certain technical feature to distinguish, it does not mean that it must have "first". It should be understood that in the utility model, "including" and "having" and any variants thereof are intended to cover non-exclusive inclusion. It should be understood that in the utility model, "multiple" means two or more than two. "And / or" is only a description of the relationship between the associated objects, which means that there are three kinds of relationships, for example, X and / or Y can represent three cases: X alone, X and Y exist at the same time, and Y alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "Including X, Y and Z", "including X, Y, Z" means that X, Y and Z are included, "including X, Y or Z" means that one of X, Y and Z is included, "including X, Y and / or Z" means that any one or any two or three of X, Y and Z is included.

[0035] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0036] like Figure 1 As shown, this utility model provides a hair dryer, including a body 1. The body 1 has a first air inlet channel 22 and a second air inlet channel 12. The first air inlet channel 22 is provided with a first fan 21, and the second air inlet channel 12 is provided with a second fan 11. The body 1 also has a first heating channel 13 and a second heating channel 14. The first air inlet channel 22 and the first heating channel 13 are connected, and the second air inlet channel 12 is connected with the second heating channel 14. The first heating channel 13 surrounds the outer periphery of the second heating channel 14.

[0037] Understandably, the machine body 1 has two independent first air intake channels 22 and second air intake channels 12. The first air intake channels 22 and second air intake channels 12 are respectively connected to the first heating channel 13 and the second heating channel 14. The airflow is controlled by the first fan 21 and the second fan 11, so that they can independently heat the airflow entering the machine body 1. The first heating channel 13 surrounds the outer periphery of the second heating channel 14, forming an annular air duct, which can provide more uniform airflow. When the air flows in the annular air duct, it will be heated relatively evenly, effectively avoiding the problems of local overheating or uneven airflow that may occur when blowing directly on the user's head. This improves the comfort of hair drying, increases the efficiency of hair drying, and shortens the time required to dry hair. At the same time, the two independently heated channels, the first heating channel 13 and the second heating channel 14, can also obtain different sizes of airflow and air temperature, providing users with different levels of drying efficiency and improving the user experience.

[0038] Specifically, in this embodiment, a handle 2 connected to the body 1 is also included. The rear end of the handle 2 is provided with a first air inlet 23, and the body 1 is provided with a second air inlet 15. The first fan 21 and the first air inlet channel 22 are placed inside the handle 2. The handle 2 is for the user to hold. The handle 2 can be cylindrical in shape, making it more convenient to use by holding the handle 2. The body 1 and the handle 2 can be set separately, but for convenience and aesthetics, they can also be integrated. The handle 2 is provided with buttons with different functions to control different functions of the hair dryer, such as controlling the blowing force, controlling the blowing temperature, and different usage modes for different hair types. A power cord for powering the hair dryer is also connected below the handle 2.

[0039] The body 1 is equipped with a heating bracket 3.

[0040] In one embodiment, such as Figure 2As shown, the heating bracket 3 comprises an outer ring body 31 and an intermediate ring body 32, the outer ring body 31 is located at the outer periphery of the intermediate ring body 32, and the first heating channel 13 is formed between the outer ring body 31 and the intermediate ring body 32. The second heating channel 14 is located on the inner side of the intermediate ring body 32.

[0041] The body 1 is provided with a heating bracket 3, and the outer ring body 31 is arranged at the outer periphery of the intermediate ring body 32. The first heating channel 13 is formed between the outer ring body 31 and the intermediate ring body 32. The positional relationship between the outer ring body 31 and the intermediate ring body 32 guides the flow direction of the airflow, which helps to promote the formation of the annular air duct. When the air is sucked into the body 1 and passes through the heating bracket 3, it will be blown out along the annular first heating channel 13. The annular first heating channel 13 helps to make the airflow distribution more uniform. The second heating channel 14 is located on the inner side of the intermediate ring body 32, so that the airflow in the second heating channel 14 is more concentrated and compact, reducing the dispersion of the airflow and improving the utilization rate and blowing efficiency of the airflow.

[0042] A plurality of first rib plates 131 are connected between the outer ring body 31 and the intermediate ring body 32, and the first rib plates 131 separate the first heating channel 13 into a plurality of first sub-channels.

[0043] The plurality of first rib plates 131 connect the outer ring body 31 and the intermediate ring body 32 to form a stable support structure. Under the action of high temperature and wind force, the heating bracket 3 is prone to deformation. The first rib plates 131 enhance the stability of the heating bracket 3, ensuring the shape and size stability of the first heating channel 13. After the first heating channel 13 is separated into a plurality of first sub-channels by the first rib plates 131, the airflow in each sub-channel is more independent, and the airflow is more easily heated due to the reduced air volume, thereby improving the heating efficiency of the air. Therefore, under the same temperature requirement, the air outlet speed can also be appropriately increased. At the same time, a single annular channel is prone to vortex flow, resulting in uneven airflow distribution. The plurality of first sub-channels can effectively reduce the generation of vortex flow, making the airflow speed and temperature distribution more uniform.

[0044] The first heating channel 13 comprises a first heating element 132.

[0045] In one embodiment, the first heating element 132 is arranged on the first rib plate 131.

[0046] In other embodiments, the first heating element 132 can be arranged on the inner side surface of the outer ring body 31 or the outer side surface of the intermediate ring body 32.

[0047] Regardless of whether the first heating element 132 is arranged on the plurality of first rib plates 131, the inner side surface of the outer ring body 31, or the outer side surface of the intermediate ring body 32, the purpose is to enable the airflow to fully contact the first heating element 132 when flowing through the first heating channel 13, thereby achieving uniform heating effect.

[0048] In another embodiment, the heating bracket 3 is provided with an inner ring body 33, which is located inside the middle ring body 32, and the annular second heating channel 14 is formed between the middle ring body 32 and the inner ring body 33.

[0049] The heating bracket 3 is composed of three layers of the outer ring body 31, the middle ring body 32 and the inner ring body 33. The first heating channel 13 is formed between the outer ring body 31 and the middle ring body 32, and the second heating channel 14 is formed between the middle ring body 32 and the inner ring body 33. The positional relationship of the three bodies guides the flow direction of the airflow, forming a double-layer annular air duct. When the air is sucked into the body and passes through the heating bracket 3, it will be blown out along the annular first heating channel 13 and / or the second heating channel 14, which helps to make the airflow speed and temperature distribution more uniform.

[0050] The middle ring body 32 and the inner ring body 33 are connected by a plurality of second rib plates 141, which separate the second heating channel 14 into a plurality of second sub-channels.

[0051] The plurality of second rib plates 141 connect the inner ring body 33 and the middle ring body 32, forming a stable support structure. Under the action of high temperature and wind, the heating bracket 3 is prone to deformation. The second rib plate 141 enhances the stability of the heating bracket 3, ensuring the shape and size stability of the second heating channel 14. After the second rib plate 141 separates the second heating channel 14 into a plurality of second sub-channels, the airflow in each sub-channel is more independent, and the air volume is reduced and is easier to be heated, improving the heating efficiency of the air. Therefore, under the same temperature requirement, the air outlet speed can also be appropriately increased. At the same time, a single annular channel is prone to vortex, resulting in uneven airflow distribution. The plurality of second sub-channels can effectively reduce the generation of vortex, making the airflow speed and temperature distribution more uniform.

[0052] The second heating channel 14 includes a second heating element 142.

[0053] In one embodiment, the second heating element 142 is arranged on the second rib plate 141.

[0054] In other embodiments, the second heating element 142 can be arranged on the inner side surface of the middle ring body 32 or the outer side surface of the inner ring body 33.

[0055] No matter whether the second heating element 142 is arranged on the plurality of second rib plates 141 or the inner side surface of the outer ring body 31 or the outer side surface of the middle ring body 32, it is to make the airflow fully contact with the second heating element 142 when flowing through the second heating channel 14, so as to achieve uniform heating effect.

[0056] Optionally, the first heating element 132 and the second heating element 142 in the embodiment are both heating wires, and in other embodiments, metal resistance wire heaters, PCT sleeve heaters, etc. can also be selected according to different use requirements.

[0057] Preferably, the outer ring body 31 and the intermediate ring body 32 in the embodiment are separated by a mica sheet, which has excellent properties such as high temperature resistance, insulation, and heat insulation, and can effectively isolate the heat generated by the first heating element 132 and the second heating element 142, so as to prevent heat accumulation, damage to the heating element, or excessively high temperature.

[0058] Specifically, as shown in Figure 6 The first fan 21 and the second fan 11 are arranged in the body 1, and independently control the air outlet of the first air inlet channel 22 and the second air inlet channel 12, respectively, so that the airflow flows through the first heating channel 13 and the second heating channel 14 where the first heating element 132 and the second heating element 142 are respectively arranged. The user can adjust the specific use temperature and air outlet rate according to the use requirement through the keys on the handle 2. For example, the first fan 21 can be used alone, the second fan 11 can be used alone, or the first fan 21 and the second fan 11 can work together; or the first control circuit controls the first heating element 132 to heat, so that the first heating channel 13 blows hot air, the second control circuit controls the second heating element 142 not to heat, so that the second heating channel 14 blows cold air, etc. Various use modes, which will not be described in detail here.

[0059] Preferably, the inner ring body 33 is provided with a negative ion generator. The inner ring body 33 is located at the center position of the heating support 3, and when the airflow is blown out, the negative ions generated by the negative ion generator are sucked out under the influence of negative pressure, ensuring the uniformity of the distribution of negative ions in the blown airflow. Since the inner ring body 33 is annular, the negative ions will diffuse along the annular path after being generated, reducing the phenomenon of local over-concentration or under-concentration. Negative ions can neutralize the positive charges on the hair, reduce the occurrence of static electricity, prevent the hair from becoming tangled and difficult to comb due to static electricity, make the hair more smooth and smooth, and can also actively combine with harmful substances such as dust and bacteria in the air, so that they settle or lose activity. During the use of the hair dryer, negative ions can be continuously released into the surrounding environment, improve the activity of the scalp, promote the metabolism of the scalp, reduce hair loss, and promote the healthy growth of the hair.

[0060] Preferably, a plurality of first rib plates 131 are connected between the outer ring body 31 and the intermediate ring body 32, and the first rib plates 131 separate the first heating channel 13 into a plurality of first sub-channels. The included angle of the first rib plates 131 distributed in the circumferential direction is smaller than the included angle of the second rib plates 141 distributed in the circumferential direction.

[0061] As shown in Figure 3As shown, the heating support 3 is provided with an air outlet cover 5, the air outlet cover 5 includes a side portion 52 and an end portion 51, the side portion 52 is sleeved on the outer periphery of the heating support 3 and is fixedly connected with the heating support 3, the end portion 51 is located at the front end of the side portion 52, the end portion 51 is provided with a first air outlet 511 and a second air outlet 512, the first air outlet 511 surrounds the outer periphery of the second air outlet 512, the first air outlet 511 is communicated with the first heating channel 13 to form a ring-shaped first air outlet channel, and the second air outlet 512 is communicated with the second heating channel 14 to form a second air outlet channel.

[0062] The air outlet cover 5 is sleeved on the outer periphery of the heating support 3 and is fixedly connected with the heating support 3, the side portion 52 of the air outlet cover 5 wraps the side wall of the heating support 3, and the end portion 51 is located at the front end of the side portion 52 (the front-rear direction is referred to as the X direction, and the left-right direction is referred to as the Y direction) and is provided with the first air outlet 511 and the second air outlet 512, the first air outlet 511 surrounds the outer periphery of the second air outlet 512, and is respectively communicated with the first heating channel 13 and the second heating channel 14, the airflow in the first heating channel 13 is blown out from the first air outlet 511, the airflow in the second heating channel 14 is blown out from the second air outlet 512, and independent air outlet channels are formed, so that turbulence is reduced and the uniformity of air outlet is improved. Figure 1

[0063] Specifically, the heating support 3 is provided with a connecting plate 34 at the rear end, and the air outlet cover 5 is clamped with the connecting plate 34 to fix the heating support 3 in the machine body 1.

[0064] The heating support 3 is provided with an axial through hole 35, the air outlet cover 5 is sleeved on the outer periphery of the heating support 3, the end portion 51 of the air outlet cover 5 is provided with the first air outlet 511 communicated with the first heating channel 13 and the second air outlet 512 communicated with the second heating channel 14, and the end portion 51 of the air outlet cover 5 is further provided with a connecting column 53 extending rearward, the connecting column 53 is inserted into the axial through hole 35 and is fixedly connected with the connecting plate 34 to clamp the heating support 3.

[0065] The first air outlet 511 and the second air outlet 512 are both discontinuously distributed with a plurality of air outlets in the circumferential direction, the first air outlet 511 and the second air outlet 512 are respectively aligned with the first sub-channel and the second sub-channel, a first supporting rib 513 is arranged between two adjacent first air outlets 511 in the circumferential direction, and a second supporting rib 514 is arranged between two adjacent second air outlets 512 in the circumferential direction, the first supporting rib 513 abuts against the first rib plate 131, and the second supporting rib 514 abuts against the second rib plate 141.

[0066] The rear end surface of the end portion 51 is provided with a rearward protruding annular rib 515 between the edges of the first air outlet 511 and the second air outlet 512, the annular rib 515 abuts against the heating support 3 to separate the first air outlet channel and the second air outlet channel. ​

[0067] An annular rib 515 protruding backward is provided on the rear end face of the end 51 between the edges of the first air outlet 511 and the second air outlet 512. The annular rib 515 separates the first air outlet channel and the second air outlet channel, preventing mutual interference and mixing of airflow between the two channels. The annular rib 515 abuts against the heating bracket 3, providing additional support for the air outlet cover 5, enhancing the connection strength between the air outlet cover 5 and the heating bracket 3, and improving the stability of the entire blower structure.

[0068] Specifically, the rearward-protruding annular rib 515 gradually tapers and abuts against the heating bracket 3, causing the airflow to be compressed as it flows through the air outlet, thereby increasing the wind speed and force. Under the same power, the gradually tapering air outlet can generate a more concentrated airflow, which helps to dry hair faster.

[0069] Based on the above embodiments, such as Figures 4 to 7 As shown, the machine body 1 is provided with an air guide 4 and a mounting bracket 16. The air guide 4 is provided with a first air guide channel and a first air guide surface 41 surrounding the outer periphery of the first air guide channel. The rear end of the first air guide surface 41 abuts against the inner wall of the machine body 1 and forms an annular second air guide channel with the inner wall of the machine body 1. The first air guide channel connects the first air inlet channel 22 and the first heating channel 13, and the second air guide channel connects the second air inlet channel 12 and the second heating channel 14.

[0070] Specifically, the air guide 4 includes an air guide plate 42. The outer peripheral side of the rear end of the air guide plate 42 is in contact with the inner wall of the body 1, so that there is almost no gap between the air guide plate 42 and the inner wall of the body 1, which reduces the possibility of turbulence when the airflow passes through. The air guide 4 rotates around the air guide plate 42. The first air guide surface 41 is disposed on the outer periphery of the air guide plate 42. The first air guide surface 41 is a smooth curved surface that is concave in the center of the air guide 4, which improves the guidance of the airflow and reduces the resistance between the airflow and the first air guide surface 41.

[0071] Specifically, the rear end of the air guide plate 42 is provided with a first connecting part, which is fixedly connected to the mounting bracket 16. The first connecting part is provided with a first connecting hole 421, and the mounting bracket 16 is provided with a first through hole 161. The first screw passes through the first through hole 161 from back to front and connects with the first connecting hole 421 to fix the first connecting part to the mounting bracket 16.

[0072] Preferably, since the air guide plate 42 is attached to the inner wall of the body 1, in order to prevent the air guide plate 42 from rotating relative to the inner wall of the body 1 during use, the rear end of the air guide plate 42 is also provided with a foolproof part 46 that cooperates with the mounting bracket 16 to fix the air guide plate 42 relative to the body 1 in a designated position.

[0073] The air guide 4 is further provided with an air guide support 43 forming a first air guide channel, and the first air blower 21 is arranged in the air guide support 43, so that the air flow generated from the first air blower 21 can directly enter the first air guide channel, reducing the loss of the air flow in the machine body 1 and improving the flow efficiency and stability of the air flow.

[0074] The air guide support 43 comprises a mounting portion 431 mounting the first air blower 21 and a guide portion 432 for guiding the air flow, the guide portion 432 is located at the front end of the mounting portion 431 and is used for guiding the air flow of the first air guide channel into the first heating channel 13, and the guide portion 432 is provided with an air hole 433 for connecting the first air inlet channel 22 and the first air guide channel, so that more air flow can enter the first air guide channel and the air inlet efficiency is improved. Preferably, the rear end of the mounting portion 431 is provided with a limiting portion 4311 for preventing the first air blower 21 from sliding out of the mounting portion 431, and a first opening 4312 for dissipating heat of the first air blower 21, and the outer periphery of the mounting portion 431 is arranged in a circular ring shape. Preferably, the guide portion 432 extends from the rear to the front and from the inside to the outside of the mounting portion 431 and is connected to the front end of the air guide plate 42.

[0075] Optionally, in the embodiment, the air guide plate 42 and the air guide support 43 are integrated, but in order to facilitate the installation of the first air blower 21, the air guide plate 42 and the air guide support 43 are arranged as a first portion 44 and a second portion 45 along the axial direction of the air guide 4, wherein the first portion 44 and the second portion 45 are arranged in axial symmetry, and after the first air blower 21 is installed, the first portion 44 and the second portion 45 are assembled by screws or clamping or gluing or the like.

[0076] Optionally, the air guide 4 is made of hard plastic material with high temperature resistance and insulation, such as PI, PPS, etc.

[0077] The front end of the guide portion 432 is connected to the front end of the air guide plate 42 to form a ring-shaped second connecting portion 422, the second connecting portion 422 is fixedly connected with the connecting plate 34 at the rear end of the heating assembly, so as to separate the first air guide channel from the second air guide channel. The connecting plate 34 is provided with a second connecting hole, and the second connecting portion 422 is provided with a second through hole 423, and the second screw passes through the second through hole 423 from the rear to the front and is connected with the second connecting hole to fixedly connect the second connecting portion 422 with the connecting plate 34.

[0078] In summary, the machine body 1 is provided with the mounting bracket 16, the air guide 4, the connecting plate 34, the heating bracket 3 and the air outlet cover 5 along the axial direction from the rear to the front, the rear end of the air guide 4 is fixedly connected with the mounting bracket 16 by the first screw, the front end of the air guide 4 is fixedly connected with the connecting plate 34 by the second screw, the first screw and the second screw are both installed from the rear to the front, which is more convenient to operate, the connecting plate 34 is clamped with the air outlet cover 5 and axially positions the heating bracket 3, and the rear end of the air outlet cover 5 is axially positioned in the machine body 1.

[0079] In addition to the preferred embodiments described above, the utility model also has other implementation manners, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model claimed.

Claims

1. An electric blower, comprising a body, a first air inlet channel and a second air inlet channel are arranged in the body, the first air inlet channel is provided with a first fan, and the second air inlet channel is provided with a second fan, characterized in that, The machine body is also provided with a first heating channel and a second heating channel, the first air inlet channel is communicated with the first heating channel, and the second air inlet channel is communicated with the second heating channel, and the first heating channel surrounds the outer periphery of the second heating channel.

2. An electric hair dryer according to claim 1, characterized in that The machine body is provided with a heating support, the heating support comprises an outer ring body and an intermediate ring body, the outer ring body is located at the outer periphery of the intermediate ring body, and the first heating channel is formed between the outer ring body and the intermediate ring body, and the second heating channel is located at the inner side of the intermediate ring body.

3. An electric hair dryer according to claim 2, wherein A plurality of first rib plates are connected between the outer ring body and the intermediate ring body, and the first rib plates separate the first heating channel into a plurality of first sub-channels.

4. An electric hair dryer according to claim 3, wherein The first heating channel comprises a first heating element, and the first heating element is arranged on the first rib plate, the inner side surface of the outer ring body or the outer side surface of the intermediate ring body.

5. An electric hair dryer according to claim 2, wherein The heating support is provided with an inner ring body, the inner ring body is located at the inner side of the intermediate ring body, and the annular second heating channel is formed between the intermediate ring body and the inner ring body.

6. An electric hair dryer according to claim 5, wherein A plurality of second rib plates are connected between the intermediate ring body and the inner ring body, and the second rib plates separate the second heating channel into a plurality of second sub-channels.

7. An electric hair dryer according to claim 6, characterized in that The second heating channel comprises a second heating element, and the second heating element is arranged on the second rib plate, the inner side surface of the intermediate ring body or the outer side surface of the inner ring body.

8. An electric hair dryer according to claim 6, wherein The inner ring body is provided with a negative ion generator.

9. An electric hair dryer according to claim 2, wherein The heating support is provided with an air outlet cover, the air outlet cover comprises a side portion and an end portion, the side portion is sleeved on the outer periphery of the heating support and is fixedly connected with the heating support, the end portion is located at the front end of the side portion, the end portion is provided with a first air outlet and a second air outlet, the first air outlet surrounds the outer periphery of the second air outlet, the first air outlet is communicated with the first heating channel to form an annular first air outlet channel, and the second air outlet is communicated with the second heating channel to form a second air outlet channel.

10. An electric hair dryer according to claim 9, wherein The rear end surface of the end portion is provided with an annular convex rib protruding rearward between the edges of the first air outlet and the second air outlet, and the annular convex rib abuts against the heating support to separate the first air outlet channel and the second air outlet channel.

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