Hair drier

Abstract

The blower comprises a blower body and a handle, the blower body comprises an air inlet, an air outlet and an airflow channel, a draught fan and a heating piece are sequentially arranged in the airflow channel in the airflow flowing direction, the draught fan comprises an inner cylinder and an outer cylinder, and an air passing channel communicating with the air inlet is formed between the inner cylinder and the outer cylinder; the heating piece comprises a support with a plurality of fins and a heating wire wound on the fins in the circumferential direction of the support, a flow guide piece is arranged between the fan and the heating piece and comprises a barrel and a plurality of splitter blades arranged along the outer circumferential wall of the barrel at intervals, and the barrel covers the end, facing the heating piece, of the inner barrel; the splitter blades and the fins are arranged in a one-to-one correspondence mode, the end, facing the heating piece, of each splitter blade is in butt joint with the corresponding fin, a flow guide air channel is formed between every two adjacent splitter blades, a heating air channel is formed between every two adjacent fins, and therefore airflow flowing out of the air passing channel flows into the heating air channels through the flow guide air channels. The blower can improve the flowing performance of airflow in the blower body.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of small household appliances, and particularly relates to a hair dryer. BACKGROUND

[0002] Most of the current hair dryers have a large gap between the motor module and the heating module. For example, the hair dryer disclosed in patent CN206369972U is prone to vortex between the motor module and the heating module, resulting in poor air flow and additional noise.

[0003] In order to solve the above problems, another patent CN220916787U discloses a hair dryer, which is provided with a wind guide cover at the air outlet end of the motor, so that the air flow passing through the motor can be smoothly transitioned to the wind guide cover, the vortex at the air outlet end of the motor is reduced, and the air resistance and the air noise generated by the vortex are reduced. On this basis, the cross-sectional area of the wind guide cover gradually decreases along the air flow direction in the air duct. When the heating element is arranged downstream of the wind guide cover, the air flow moving along the wind guide cover converges to the middle, and can only effectively contact the heating element at the middle position, resulting in low utilization efficiency of the heating element. Moreover, the air flow is prone to converge to the middle, which is not conducive to the uniform distribution of heat of the heating element, resulting in high temperature of part of the air flow and low temperature of part of the air flow, and uneven outlet air temperature, which affects the user experience. CONTENT OF THE UTILITY MODEL

[0004] The application provides a hair dryer, which aims to solve the technical problems that the existing flow guide structure arranged at the air outlet end of the motor cannot effectively cooperate with the heating element, resulting in low heat utilization rate of the heating element and uneven air flow heating.

[0005] The technical scheme adopted by the application is as follows:

[0006] A hair dryer comprises a machine body and a handle, the machine body comprises an air inlet, an air outlet and an air flow channel between the air inlet and the air outlet, a fan and a heating element are arranged in the air flow channel in sequence along the air flow direction, the fan comprises an inner cylinder and an outer cylinder, a through-air air duct communicating with the air inlet is formed between the inner cylinder and the outer cylinder, the heating element comprises a bracket with multiple fins and a heating wire arranged on the fins in a circumferential direction of the bracket, a flow guide piece is arranged between the fan and the heating element, the flow guide piece comprises a cylinder body and multiple shunt blades arranged along the outer peripheral wall of the cylinder body, the cylinder body is arranged at one end of the inner cylinder facing the heating element, the multiple shunt blades are arranged in one-to-one correspondence with the multiple fins, one end of each shunt blade facing the heating element is connected to the corresponding fin, a flow guide air duct is formed between two adjacent shunt blades, and a heating air duct is formed between two adjacent fins, so that the air flow flowing out of the through-air air duct flows into the heating air duct through the flow guide air duct.

[0007] The hair dryer of the application further has the following additional technical features:

[0008] The end of the barrel body towards the heating element is provided with a clamping groove extending from the end to the side wall of the barrel body, and a plurality of clamping grooves are provided one by one corresponding to a plurality of wings.

[0009] The end of the splitter blade is flush with the bottom of the clamping groove, the wing is inserted into the clamping groove, and the end of the wing abuts against the end of the splitter blade.

[0010] The end of the splitter blade towards the heating element abuts against the corresponding wing in dislocation.

[0011] The splitter blade comprises a first blade segment and a second blade segment along the airflow direction, the width of the second blade segment is greater than that of the first blade segment, and the width of the second blade segment is constant along the airflow direction.

[0012] The width of the first blade segment gradually increases along the airflow direction, and the end of the first blade segment away from the barrel body extends in an arc shape.

[0013] The outer diameter of the barrel body expands along the airflow direction.

[0014] The outer diameter of the barrel body is equal to the inner diameter of the heating wire in the circumferential direction.

[0015] The end of the barrel body towards the heating element is internally provided with a baffle, the baffle is provided with a first wire passing hole, and the wire harness of the heating element extends into the barrel body from the first wire passing hole.

[0016] The side wall of the barrel body towards the handle is provided with a second wire passing hole, and the wire harness of the heating element and the wire harness of the fan extend out of the barrel body from the second wire passing hole to be connected with the control panel in the handle.

[0017] Due to the adoption of the above technical solutions, the beneficial effects obtained by the application are:

[0018] 1. The hair dryer of the application can fully utilize the space between the fan and the heating element under the premise of arranging the flow guide between the fan and the heating element, prevent vortex from being generated at this position, cause airflow to flow smoothly, and increase noise. On this basis, the flow guide forms a plurality of flow guide air ducts through a plurality of splitter blades, the flow guide air ducts are communicated with the heating air duct formed by the heating element, which is conducive to making the airflow flowing out of the air passing air duct smoothly flow into the heating air duct through the flow guide air duct. Under the condition that the total airflow flow rate is constant, the airflow is divided into a plurality of streams and flows into a plurality of heating air ducts through a plurality of flow guide air ducts. Not only the resistance is small, the flow is smooth and orderly, but also the airflow can be ensured to fully contact with the heating wire during flowing through the heating air duct, so as to ensure that each branch airflow is heated uniformly, which is conducive to uniform air outlet temperature and improves the user's experience.

[0019] By setting multiple diversion vanes, the space around the cylinder is divided into multiple air guide channels while the airflow is guided, which can improve the space utilization; the diversion vanes and the airfoils are formed in a similar shape to form air channels that communicate with each other, without the need to set a special air channel structure, which can improve the space utilization, simplify the structure configuration, and facilitate the compact arrangement of the structure, without increasing the size of the machine body, ensuring the miniaturization of the hair dryer.

[0020] 2. In order to enhance the stability of the installation and use of the air guide, the end of the cylinder towards the heating element is provided with a clamping groove extending from the end to the side wall of the cylinder, and a plurality of clamping grooves are provided one by one corresponding to a plurality of airfoils, and the airfoils are inserted into the clamping grooves, so that the two ends of the cylinder are respectively abutted by the related structures of the fan and the heating element, which can improve the stability and promote the compactness between the structures; the airfoils are inserted into the clamping grooves, which can also enhance the installation effect of the heating element, and the clamping grooves can also serve as installation guides, facilitating the butt joint of the airfoils and the diversion vanes, reducing the assembly difficulty and improving the assembly efficiency.

[0021] Further, in order to realize the butt joint of the airfoils and the diversion vanes, the end of the diversion vane is flush with the bottom of the clamping groove, which can prevent interference during the insertion of the airfoils, and when the airfoils are inserted in place, the end of the airfoil abuts against the end of the diversion vane, which not only ensures smooth installation, but also ensures that the airflow flows into the heating air channel through the air guide channel, preventing air leakage between the airfoils and the diversion vanes, affecting the airflow into the heating air channel, thereby ensuring the efficiency of the final hot air.

[0022] 3. In order to ensure that the airflow flows into the heating air channel through the air guide channel, and prevent part of the airflow from flowing between the air guide and the heating element to affect the final air outlet efficiency, the end of the diversion vane towards the heating element is offset from the corresponding airfoil, that is, the diversion vane and the airfoil partially overlap, which can prevent the formation of gaps at the butt joint of the two, affecting the airflow into the heating air channel, thereby ensuring the efficiency of the final hot air.

[0023] 4. Near the air outlet end of the fan, the size of the passage between the inner cylinder and the outer cylinder changes along the airflow direction, in order to better match the space of the passage, the width of the diversion vane is not uniform along the airflow direction, by designing the diversion vane into a two-section structure, the diversion vane includes a first vane segment and a second vane segment along the airflow direction, the width of the second vane segment is greater than that of the first vane segment, which is conducive to arranging the first vane segment in a relatively small space and arranging the second vane segment in a relatively large space, so as to realize the rational use of space; the width of the second vane segment is set to be constant along the airflow direction, which is conducive to guiding the airflow to flow straight into the heating air channel, thereby improving the airflow rate and further improving the air outlet efficiency.

[0024] Further, the width of the first blade segment gradually increases along the airflow direction, which can conform to the change of the passage between the inner cylinder and the outer cylinder, reasonably utilize the space, and the end of the first blade segment away from the cylinder body extends in an arc shape, which is beneficial to guide the airflow to flow more smoothly when turning, reduce the wind resistance, and improve the airflow rate.

[0025] 5. In order to make the airflow passing through the flow guide fully contact with the heating wire, the outer diameter of the cylinder body increases along the airflow direction, so that the radial distance between the cylinder body and the heating wire is smaller at the air outlet end of the flow guide, the airflow can contact with the heating wire more quickly, improve the heat transfer efficiency, prevent the airflow from gathering towards the central axis of the heating element, and cause a part of the airflow to be difficult to contact with the heating wire, and the path of the airflow to the heating wire is longer, which affects the heat transfer efficiency.

[0026] 6. In order to improve the heat utilization rate of the heating wire, the outer diameter of the cylinder body is equal to the inner diameter of the heating wire in the circumferential direction, so that the heating wire located at the innermost side in the radial direction can also contact with the cold air passing through the cylinder body, which can avoid the cold air only contacting with the heating wire at the outer side in the radial direction, causing a part of the heat to be wasted, improving the heat utilization rate, and improving the heat transfer efficiency.

[0027] 7. In order to optimize the arrangement of the wire harness of the electronic components, the inner side of the end of the cylinder body towards the heating element is provided with a baffle, the baffle is provided with a first wire passing hole, and the wire harness of the heating element extends into the cylinder body through the first wire passing hole. By setting the first wire passing hole with a proper size, the wire harness can meet the wiring requirements and can be constrained, which can prevent the wire harness from being arranged disorderly and affecting the airflow, and part of the wire harness can be wired from the cylinder body, improving the space utilization.

[0028] Further, the side wall of the cylinder body towards the handle is provided with a second wire passing hole, and the wire harness of the heating element and the wire harness of the fan extend out of the cylinder body through the second wire passing hole to be connected with the control panel in the handle. By setting the second wire passing hole towards the handle, the wire harness can meet the electrical connection requirements while the wiring path is the shortest, which is beneficial to save the length of the wire harness, reduce the risk of winding the wire harness, and realize the orderly and simple arrangement of the wire harness. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 It is a cross-sectional view of the body of the hair dryer and the internal structure thereof according to an embodiment of the present application.

[0031] Figure 2 It is a schematic view of the cooperation between the flow guide and the heating element according to an embodiment of the present application.

[0032] Figure 3 Fig. 1 is a schematic view of a structure of a flow guide according to an embodiment of the present application.

[0033] Figure 4 Fig. 2 is a schematic view of a longitudinal section of the flow guide of Fig. 1. Figure 3

[0034] Reference signs:

[0035] 10, body; 101, air inlet; 102, air outlet; 103, air flow channel; 11, fan; 111, wire harness of the fan; 12, heating element; 121, wire harness of the heating element; 13, inner cylinder; 14, outer cylinder; 141, first horizontal section; 142, second inclined section; 143, third horizontal section; 15, air passing air duct; 16, support; 161, wing; 17, heating wire; 18, flow guide; 19, cylinder body; 191, clamping groove; 192, first cylinder part; 193, second cylinder part; 194, second wire passing hole; 20, flow dividing blade; 201, first blade section; 202, second blade section; 203, wire slot; 21, flow guide air duct; 22, heating air duct; 23, baffle; 231, first wire passing hole. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0037] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and therefore the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment can be combined with each other without conflict.

[0038] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] ​In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0040] In this application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0041] As Figures 1 to 4 As shown in the figure, the application provides a hair dryer, which comprises a body 10 and a handle, the body 10 comprises an air inlet 101, an air outlet 102 and an air flow channel 103 between the air inlet 101 and the air outlet 102, a fan 11 and a heating element 12 are arranged in the air flow channel 103 in sequence along the air flow direction, the fan 11 comprises an inner cylinder 13 and an outer cylinder 14, a through-air air duct 15 communicating with the air inlet 101 is formed between the inner cylinder 13 and the outer cylinder 14, the heating element 12 comprises a bracket 16 with a plurality of fins 161 and a heating wire 17 circumferentially arranged on the fins 161 along the bracket 16, a flow guide 18 is arranged between the fan 11 and the heating element 12, the flow guide 18 comprises a cylinder body 19 and a plurality of shunt blades 20 arranged at intervals along the outer peripheral wall of the cylinder body 19, the cylinder body 19 is arranged on one end of the inner cylinder 13 facing the heating element 12, the plurality of shunt blades 20 are arranged one by one corresponding to the plurality of fins 161, one end of each shunt blade 20 facing the heating element 12 is butt jointed with the corresponding fin 161, a flow guide air duct 21 is formed between the adjacent two shunt blades 20, and a heating air duct 22 is formed between the adjacent two fins 161, so that the air flow from the through-air air duct 15 flows into the heating air duct 22 through the flow guide air duct 21.

[0042] The hair dryer of the present application can make full use of the space between the fan 11 and the heating element 12 under the premise of arranging the flow guide 18 between the fan 11 and the heating element 12, prevent vortex from being generated at the position, cause airflow to flow unsmoothly and increase noise, on the basis of which, the flow guide 18 forms a plurality of flow guide air ducts 21 through a plurality of flow splitting blades 20, the flow guide air ducts 21 are communicated with a heating air duct 22 formed by the heating element 12, which is conducive to making the airflow flowing out of the airflow passing air duct 15 flow into the heating air duct 22 through the flow guide air duct 21 smoothly, under the condition that the total airflow flow rate is constant, the airflow is divided into a plurality of branches and flows into a plurality of heating air ducts 22 through a plurality of flow guide air ducts 21, which not only has small resistance, smooth and orderly flow, but also can ensure that the airflow fully contacts the heating wire 17 during flowing through the heating air duct 22, and ensure that each branch airflow is heated uniformly, thus being conducive to uniform air outlet temperature and improving user experience.

[0043] By arranging a plurality of flow splitting blades 20, the airflow is guided at the same time, and the space outside the cylinder 19 is also divided to form a plurality of flow guide air ducts 21, which can improve the space utilization rate; the flow splitting blades 20 and the airfoils 161 are formed in a similar shape to form air ducts that are communicated with each other, without the need to arrange a special air duct structure, which can improve the space utilization rate, simplify the structure configuration, and also be conducive to compact arrangement of the structure, without increasing the size of the machine body 10, and ensuring the miniaturization of the hair dryer.

[0044] As shown in Figure 1 and Figure 2 , the present application adds a flow guide 18 between the fan 11 and the heating element 12 to solve the problem of vortex generated after the airflow passes through the fan 11, thereby improving the wind speed and air outlet efficiency of the hair dryer, and optimizing noise reduction. The fan 11, the flow guide 18 and the heating element 12 are coaxially arranged, and the flow path of the airflow is: the external air flows into the machine body 10 from the air inlet 101, flows through the airflow passing air duct 15, flows from the airflow passing air duct 15 into the flow guide air duct 21, and then the airflow flows into the heating air duct 22. The cold air is heated by the heating wire 17 and then flows out of the air outlet 102. The cylinder 19 of the flow guide 18 is a hollow structure, which is sleeved on the inner cylinder 13, is convenient to install, and part of the structure of the fan 11 can extend into the cylinder 19, thereby improving the space utilization rate. As shown in Figure 2 , the flow guide 18 and the heating element 12 form a communicated air duct through the butt joint of the flow splitting blade 20 and the airfoil 161, and a plurality of air ducts are formed in the circumferential direction, which can realize airflow splitting, is conducive to each branch airflow flowing along each air duct and being fully heated by the heating wire 17, improves the air outlet efficiency, ensures uniform air outlet temperature, and improves user experience.

[0045] As a preferred embodiment of the present application, the end of the barrel 19 towards the heating element 12 is provided with a clamping groove 191 extending from the end to the side wall of the barrel 19, and a plurality of clamping grooves 191 are provided one-to-one corresponding to the plurality of flaps 161, and the flaps 161 are inserted into the clamping grooves 191.

[0046] In this embodiment, the fan 11 and the heating element 12 jointly fix the flow guide 18, and the two ends of the barrel 19 are respectively abutted by the relevant structures of the fan 11 and the heating element 12, which can improve the stability and promote the compactness between the structures; the flaps 161 are inserted into the clamping grooves 191, which can also enhance the installation effect of the heating element 12, and the clamping grooves 191 can also serve as installation guides, facilitating the butt joint of the flaps 161 and the splitter blades 20, and reducing the assembly difficulty and improving the assembly efficiency.

[0047] As shown in Figure 3 The barrel 19 is circumferentially evenly distributed with six clamping grooves 191, and the number of the clamping grooves 191, the flaps 161 and the splitter blades 20 is the same, and the number can be set according to actual needs. The end of the barrel 19 towards the heating element 12 can be provided with an opening, i.e. an open setting, or a baffle 23 can be provided on the inner circumferential wall of the barrel 19, and when the baffle 23 is provided, the position of the baffle 23 is subject to the condition that it does not interfere with the insertion of the flaps 161, for example, the baffle 23 is flush with the bottom of the clamping groove 191.

[0048] In one embodiment, the end of the splitter blade 20 is flush with the bottom of the clamping groove 191, which can prevent interference during the insertion of the flaps 161, and the flaps 161 are inserted into the clamping grooves 191 and the ends of the flaps 161 abut the ends of the splitter blades 20, which can prevent the existence of gaps between the flaps 161 and the splitter blades 20 from causing air leakage, affecting the airflow into the heating air duct 22, and thus ensuring the efficiency of the final hot air.

[0049] As a preferred embodiment of the present application, the end of the splitter blade 20 towards the heating element 12 is misaligned with the corresponding flap 161.

[0050] In this embodiment, the flaps 161 and the splitter blades 20 butt joint in the form of end face misalignment, i.e. there is partial overlap between the flaps 161 and the splitter blades 20, and the side walls of the overlapping parts of the flaps 161 and the splitter blades 20 abut, which can prevent the formation of gaps at the butt joint of the flaps 161 and the splitter blades 20 from affecting the airflow into the heating air duct 22, and thus ensuring the efficiency of the final hot air.

[0051] As a preferred embodiment of the present application, the splitter blade 20 includes a first blade segment 201 and a second blade segment 202 along the airflow direction, the width of the second blade segment 202 is greater than the width of the first blade segment 201, and the width of the second blade segment 202 is constant along the airflow direction.

[0052] As shown in Figure 1 , the air outlet end of the outer cylinder 14 is provided with a trumpet mouth, the outer cylinder 14 comprises a first horizontal section 141, a second inclined section 142 extending outwardly from the end of the first horizontal section 141, and a third horizontal section 143 extending horizontally, and the space between the outer cylinder 14 and the inner cylinder 13 becomes larger in the downstream direction from the second inclined section 142. In order to make rational use of space, as shown in Figure 4 , the flow dividing vane 20 is designed as a two-section structure, the first vane section 201 and the second vane section 202 are provided with different widths in order to adapt to the space between the outer cylinder 14 and the inner cylinder 13, and prevent interference between structural members. The second vane section 202 can correspond to the position of the third horizontal section 143, so that the second vane section 202 can be provided with a larger width, the depth of the flow guide air duct 21 can be deepened, the interference between the branch air flows can be reduced, and the air flow can flow more smoothly; the width of the second vane section 202 is constant along the air flow direction, which is beneficial to guide the air flow to flow straight into the heating air duct 22, thereby improving the air flow rate and further improving the air outlet efficiency.

[0053] In one embodiment, the width of the first vane section 201 gradually increases along the air flow direction, the first vane section 201 corresponds to the positions of the first horizontal section 141 and the second inclined section 142, and can adapt to the space change between the inner cylinder 13 and the outer cylinder 14 to avoid interference; further, the end of the first vane section 201 away from the cylinder body 19 extends in an arc shape, which is beneficial to guide the air flow to flow more smoothly when turning, reduce the wind resistance, and improve the air flow rate.

[0054] As a preferred embodiment of the present application, the outer diameter of the cylinder body 19 increases along the air flow direction.

[0055] Specifically, as shown in Figure 4 , the cylinder body 19 along the air flow direction for example comprises a first cylinder part 192 and a second cylinder part 193, the inner diameter and the outer diameter of the first cylinder part 192 are uniform, which is beneficial to the sleeving installation of the first cylinder part 192 and the inner cylinder 13; the inner diameter and the outer diameter of the second cylinder part 193 gradually increase along the air flow direction, so that at the end of the second cylinder part 193, the radial distance between the cylinder body 19 and the heating wire 17 is small, the air flow can quickly contact the heating wire 17, the heat transfer efficiency can be improved, and the air flow can be prevented from gathering towards the central axis of the heating element 12, which causes a part of the air flow to be difficult to contact the heating wire 17, and the path of the air flow to reach the heating wire 17 is long, which affects the heat transfer efficiency.

[0056] As a preferred embodiment of the present application, the outer diameter of the cylinder body 19 is equal to the inner diameter of the heating wire 17 along the circumferential direction.

[0057] Generally, the heating wire 17 is designed in a wave shape, after being arranged on the support 16, the heating wire 17 takes the circle formed near the center of the support 16 as the inner diameter, takes the circle formed away from the center of the support 16 as the outer diameter, and sets the outer diameter of the position where the air outlet end of the cylinder 19 is located to be equal to the inner diameter of the heating wire 17, so as to ensure that the cold air flowing through the cylinder 19 can contact each part of the heating wire 17 distributed in the radial direction, so that the heating wire 17 located at the innermost side in the radial direction can also contact the cold air flowing through the cylinder 19, which can avoid that the cold air can only contact the heating wire 17 at the outer side in the radial direction, thereby causing a part of heat waste, improving the heat utilization rate and the heat transfer efficiency.

[0058] As a preferred embodiment of the present application, the inner side of one end of the cylinder 19 towards the heating element 12 is provided with a baffle 23, and the baffle 23 is provided with a first wire passing hole 231, and the wire harness 121 of the heating element extends into the cylinder 19 from the first wire passing hole 231.

[0059] As shown in Figure 3 , by setting the first wire passing hole 231 with a proper size, the wire harness can be constrained while meeting the wire harness wiring requirement, which can prevent the disorderly arrangement of the wire harness from affecting the airflow, and the wire harness part can be wired from the inside of the cylinder 19, thereby improving the space utilization.

[0060] The first wire passing hole 231 can be a circular hole or other shaped hole, which is not limited here. When the wire harness 121 of the heating element is a plurality of wires, the wire harness can be pre-bundled by using a wire tie, a wire clamp or the like, which is convenient for passing through the first wire passing hole 231 and is conducive to installation.

[0061] Further, the side wall of the cylinder 19 towards the handle is provided with a second wire passing hole 194, and the wire harness 121 of the heating element and the wire harness 111 of the fan extend out of the cylinder 19 from the second wire passing hole 194 to be connected with the control panel in the handle.

[0062] By setting the second wire passing hole 194 in the direction towards the handle, the wire harness can be arranged in the shortest path while meeting the electrical connection requirement, which is conducive to saving the length of the wire harness, reducing the risk of winding the wire harness, and realizing the orderly and simple arrangement of the wire harness.

[0063] It can be understood that the cylinder 19 is sleeved on the inner cylinder 13, the wire harness 111 of the fan can extend into the cylinder 19 from one end of the cylinder 19, and the wire harness 111 of the fan and the wire harness 121 of the heating element are wired from the inside of the cylinder 19, which can solve the problem that the existing wire harness is directly exposed in the airflow passage 103 to affect the airflow, and can further improve the smoothness of the airflow. The second wire passing hole 194 can be a circular hole or other shaped hole, which is not limited here.

[0064] Further, as shown in Figure 3As shown, a wire slot 203 extending along the width direction of the shunt vane 20 is arranged near the second wire passing hole 194, and the wire harness extending from the second wire passing hole 194 is arranged through the wire slot 203, which is beneficial to the orderly arrangement of the wire harness and improves the arrangement effect of the wire harness.

[0065] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0066] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0067] The above only describes the embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1.A hair dryer comprising a body and a handle, the body comprising an air inlet, an air outlet and an air flow channel between the air inlet and the air outlet, the air flow channel comprising a fan and a heating element in sequence along a direction of air flow, the fan comprising an inner cylinder and an outer cylinder, a through air duct being formed between the inner cylinder and the outer cylinder and communicating with the air inlet, the heating element comprising a bracket having a plurality of fins and a heating wire wound on the fins along a circumferential direction of the bracket, characterized in that a flow guide is arranged between the fan and the heating element, the flow guide comprising a cylinder and a plurality of flow splitter blades arranged along an outer peripheral wall of the cylinder, the cylinder being arranged on an end of the inner cylinder facing the heating element, the plurality of flow splitter blades being arranged one-to-one corresponding to the plurality of fins, each of the flow splitter blades being abutted with the corresponding fin at an end thereof facing the heating element, a flow guide duct being formed between two adjacent flow splitter blades, and a heating air duct being formed between two adjacent fins, so that the air flow from the through air duct flows into the heating air duct through the flow guide duct. 2.The hair dryer according to claim 1, characterized in that the end of the cylinder facing the heating element is provided with a clamping groove extending from the end to a side wall of the cylinder, and the plurality of clamping grooves are arranged one-to-one corresponding to the plurality of fins, and the fins are inserted into the clamping grooves. 3.The hair dryer according to claim 2, characterized in that the end of the flow splitter blade is flush with the bottom of the clamping groove, and the fin is inserted into the clamping groove and the end of the fin is abutted with the end of the flow splitter blade. 4.The hair dryer according to claim 1, characterized in that the end of the flow splitter blade facing the heating element is abutted with the corresponding fin in a staggered manner. 5.The hair dryer according to claim 1, characterized in that the flow splitter blade comprises a first blade segment and a second blade segment along the direction of air flow, the width of the second blade segment is greater than the width of the first blade segment, and the width of the second blade segment is constant along the direction of air flow. 6.The hair dryer according to claim 5, characterized in that the width of the first blade segment gradually increases along the direction of air flow, and an end of the first blade segment away from the cylinder extends in an arc shape. 7.The hair dryer according to claim 1, characterized in that the outer diameter of the cylinder expands along the direction of air flow. 8.The hair dryer according to claim 1, characterized in that the outer diameter of the cylinder is equal to the inner diameter of the heating wire along the circumferential direction. 9.The hair dryer according to claim 1, characterized in that an inner portion of an end of the cylinder facing the heating element is provided with a baffle, the baffle is provided with a first wire passing hole, and a wire harness of the heating element extends into the cylinder from the first wire passing hole. 10.The hair dryer according to claim 9, characterized in that a side wall of the cylinder facing the handle is provided with a second wire passing hole, and the wire harness of the heating element and a wire harness of the fan extend out of the cylinder from the second wire passing hole to be connected with a control board in the handle. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Images