A hair dryer

Abstract

The utility model provides a hair dryer, belonging to the technical field of household appliances. In the hair dryer of the utility model, since the main air outlet and the secondary air outlet are both arranged on the first end of the main body, when the hair dryer blows air through the main air outlet, the air pressure near the main air outlet is reduced, so that the gas in the secondary air outlet is sucked in and flows along with the airflow of the main air outlet. At the same time, a secondary air inlet is arranged between the first end and the second end of the hair dryer main body, and the secondary air inlet is connected to the secondary air outlet. After the gas in the secondary air outlet is sucked out, it can be replenished through the secondary air inlet. Therefore, during the process of blowing air from the main air outlet, the secondary air outlet can continue to blow air, thereby increasing the total air volume of the hair dryer.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, in particular to a hair dryer. Background Art

[0002] A hair dryer is a commonly used washing and care tool, usually used for drying and shaping hair. Air volume is an important functional parameter of a hair dryer. The air volume of an existing hair dryer is usually determined by a fan assembly arranged inside the hair dryer. Since a hair dryer is a small household appliance, the air volume that can be generated by the fan assembly is limited due to factors such as size, weight, cost, and working noise, making it difficult to further increase the air volume of existing hair dryers. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a hair dryer for solving the problem that the air volume of the hair dryer in the prior art is difficult to further increase.

[0004] In order to achieve the above-mentioned object and other related objects, the utility model provides a hair dryer, comprising:

[0005] A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end of the main body, and a secondary air inlet being arranged between the first end and the second end;

[0006] A secondary air flow channel, wherein the secondary air flow channel is at least partially disposed in the main body, and the secondary air flow channel is connected to the secondary air inlet and the secondary air outlet;

[0007] Among them, the secondary air flow channel includes a first air duct and a second air duct, the second air duct is connected to the secondary air inlet and extends from the secondary air inlet to the interior of the main body, the first air duct is connected to the secondary air outlet and extends from the secondary air outlet to the second end until it intersects and connects with the second air duct.

[0008] The utility model also provides a hair dryer, comprising:

[0009] A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end of the main body, and a secondary air inlet being arranged between the first end and the second end;

[0010] A secondary air flow channel is disposed in the main body, the secondary air flow channel being connected to the secondary air inlet and the secondary air outlet;

[0011] The secondary air flow channel includes a first air duct and a second air duct, the second air duct is connected to the secondary air inlet and extends from the secondary air inlet to the inside of the main body, the first air duct is connected to the secondary air outlet and extends from the secondary air outlet to the second end to intersect and communicate with the second air duct,

[0012] In the direction extending from the first end to the second end, the length dimension of the first air duct is a, the length dimension of the main body is b, and 0.3b≤a≤0.8b.

[0013] The utility model also provides a hair dryer, comprising:

[0014] A main body, the main body having a first end for air outlet and a second end away from the first end, the first end of the main body being provided with a main air outlet and a secondary air outlet, and a secondary air inlet being provided between the first end and the second end;

[0015] a main air flow channel, the main air flow channel being in communication with the main air outlet;

[0016] a secondary air flow channel, the secondary air flow channel communicating with the secondary air inlet and the secondary air outlet;

[0017] An electrical module, arranged in the main air flow channel;

[0018] Wherein, the main air flow channel and the secondary air flow channel are separated and independent from each other.

[0019] The utility model also provides a hair dryer, comprising:

[0020] A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end, and a secondary air inlet being arranged between the first end and the second end;

[0021] a first air duct connected to the secondary air outlet and extending from the secondary air outlet to the second end;

[0022] A first cavity, the first cavity is arranged in the main body around the first air duct;

[0023] A second cavity, wherein the second cavity is disposed in the main body, and the first air duct and the second cavity are disposed sequentially from the first end to the second end;

[0024] Wherein, the secondary air inlet is located between the first cavity and the second cavity and is connected to the first air duct, and the first air duct is separated from the first cavity and the second cavity respectively.

[0025] Optionally, the first air duct is perpendicular to the second air duct.

[0026] Optionally, the secondary air inlet is rectangular, oblong or elliptical.

[0027] Optionally, the main body is cylindrical, and the two ends of the cylinder are the first end and the second end respectively, and the secondary air inlet is arranged on the side wall of the cylinder.

[0028] Optionally, the second air guide duct passes through the main body, and the secondary air inlets are respectively formed on two opposite sides of the main body.

[0029] Optionally, the second end of the body is closed.

[0030] Optionally, the hair dryer is provided with a main air flow channel separated from the secondary air flow channel, and the hair dryer further has a main air inlet, and the main air flow channel is respectively connected to the main air inlet and the main air outlet.

[0031] The hair dryer also includes a fan assembly and a heating assembly, and the fan assembly and the heating assembly are sequentially arranged in the main air flow channel from the main air inlet to the main air outlet.

[0032] Optionally, the hair dryer further comprises a circuit board assembly, and a circuit board mounting cavity for accommodating the circuit board assembly is provided in the main body;

[0033] The circuit board installation cavity has a partition wall, and the circuit board installation cavity is separated from the main airflow channel and the secondary airflow channel by the partition wall, or

[0034] The circuit board installation cavity has a partition wall, the circuit board installation cavity is separated from the secondary air flow channel by the partition wall, and a connecting hole is opened on the partition wall, and the circuit board installation cavity is connected with the main air flow channel through the connecting hole.

[0035] Optionally, the hair dryer also includes a hollow handle connected to the main body, the main air inlet is arranged on the end of the handle away from the main body, the main air flow channel is partially located in the handle, and the fan assembly is arranged in the main air flow channel in the handle.

[0036] Optionally, the hair dryer further comprises a circuit board assembly, and the circuit board assembly is arranged in the main air flow channel in the handle.

[0037] Optionally, a circuit board installation cavity is provided in the main body, a circuit board assembly is provided in the circuit board installation cavity, the circuit board installation cavity is connected with the main air flow channel, a diverter plate is provided in the main air flow channel for diverting part of the air flow in the main air flow channel to the circuit board installation cavity, and the diverter plate is provided at the connection point between the circuit board installation cavity and the main air flow channel.

[0038] Optionally, the main air flow channel is connected to the circuit board installation cavity at the point where the handle is connected to the main body.

[0039] Optionally, a circuit board assembly is disposed in the main body, the circuit board assembly is disposed close to the second end of the main body, the heating assembly is disposed close to the first end of the main body, and the secondary air inlet is located on the outer surface of the main body between the circuit board assembly and the heating assembly.

[0040] Optionally, the hair dryer further includes a circuit board assembly, and the fan assembly, the circuit board assembly and the heating assembly are sequentially arranged in the main air flow channel from the main air inlet to the main air outlet.

[0041] Optionally, the secondary air flow channel is provided with an air guide protrusion for guiding the airflow in the second air guide duct into the first air guide duct. The air guide protrusion is located at the intersection of the first air guide duct and the second air guide duct, and protrudes along the second end of the main body toward the first end of the main body.

[0042] Optionally, a circuit board installation cavity is provided in the main body, a circuit board assembly is provided in the circuit board installation cavity, the air guide protrusion has a hollow space connected to the circuit board installation cavity, and the circuit board assembly is at least partially located in the hollow space of the air guide protrusion.

[0043] Optionally, a connecting opening is provided at a position of the second air duct close to the second end, and the hair dryer further comprises an accessory filled with a care substance, and the accessory extends into the connecting opening to be connected with the second air duct.

[0044] Optionally, a communication module is provided in the accessory, and a program is stored in the communication module. When the accessory is installed on the hair dryer, the communication module can be connected to the hair dryer for communication.

[0045] As described above, a hair dryer of the utility model has the following beneficial effects: since the main air outlet and the secondary air outlet are both arranged on the first end of the main body, when the hair dryer blows air through the main air outlet, the air pressure near the main air outlet is reduced, so that the gas in the secondary air outlet is sucked in and flows along with the airflow of the main air outlet. At the same time, a secondary air inlet is arranged between the first end and the second end of the hair dryer main body, and the secondary air inlet is connected to the secondary air outlet. After the gas in the secondary air outlet is sucked out, it can be replenished through the secondary air inlet. Therefore, during the process of blowing air through the main air outlet, the secondary air outlet can continue to blow air, thereby increasing the total air volume of the hair dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the three-dimensional structure of the hair dryer in the embodiment of the utility model;

[0047] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure of the main body;

[0048] Figure 3 for Figure 1 A partial cross-sectional structural diagram of the middle hair dryer;

[0049] Figure 4 for Figure 1 The second schematic diagram of the partial cross-sectional structure of the middle hair dryer;

[0050] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the middle hair dryer in the Z direction;

[0051] Figure 6 for Figure 5 A schematic diagram of a local enlarged structure;

[0052] Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure of the hair dryer body in the Y direction;

[0053] Figure 8 The second schematic diagram of the three-dimensional structure of the hair dryer in the embodiment of the utility model;

[0054] Fig. 9 for Figure 8 A schematic diagram of the partially enlarged structure of the main body;

[0055] Fig.10 for Figure 8 A schematic diagram of the cross-sectional structure of the middle hair dryer in the Z direction;

[0056] Fig.11 for Figure 8 A schematic diagram of the cross-sectional structure of the hair dryer body in the Y direction;

[0057] Fig.12 It is a cross-sectional schematic diagram of the attachment being separated from the rest of the main body in the embodiment of the utility model;

[0058] Fig.13 It is a cross-sectional schematic diagram of the connection between the attachment and the rest of the main body in the embodiment of the utility model.

[0059] Explanation of the reference numerals: main body 1, handle 2, secondary air inlet 3, secondary air outlet 4, main air inlet 5, main air outlet 6, first air duct 7, second air duct 8, first cavity 9, second cavity 10, circuit board assembly 11, air guide protrusion 12, fan assembly 13, heating assembly 14, diverter 15, filter 16, accessory 17, discharge opening 18, connecting opening 19. DETAILED DESCRIPTION

[0060] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0061] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0062] See also Figures 1 to 13 This embodiment provides a hair dryer, including a main body 1 and a handle 2 connected to the main body 1, the main body 1 has a first end for air outlet and a second end away from the first end, a main air outlet 6 and a secondary air outlet 4 are arranged on the first end of the main body 1, and a secondary air inlet 3 is arranged between the first end and the second end of the main body 1. The direction of the main air outlet 6 is the blowing direction of the hair dryer.

[0063] The main body 1 is provided with a first air duct 7 and a second air duct 8, which form a secondary air flow channel, and the secondary air flow channel is connected to the secondary air inlet 3 and the secondary air outlet 4. The secondary air flow channel includes the first air duct 7 and the second air duct 8, the second air duct 8 is connected to the secondary air inlet 3, and extends from the secondary air inlet 3 to the inside of the main body 1, and the first air duct 7 is connected to the secondary air outlet 4, and extends from the secondary air outlet 4 to the second end to intersect and communicate with the second air duct 8.

[0064] In this embodiment, the tube wall of the first air duct 7 and the tube wall of the second air duct 8 are connected to form a partition structure, and an airflow cavity connected to the main air outlet 6 is formed between the partition structure and the outer shell of the main body 1. The handle 2 is a hollow structure, and the hollowness of the handle 2 is connected to the cavity between the partition structure and the outer shell of the main body 1 to form a main airflow channel.

[0065] like Figure 3~Figure 5 , Fig.10 , Fig.12 and Fig.13As shown, a main air inlet 5 is provided on one end of the handle 2 away from the main body 1, and the main air flow channel is connected to the main air inlet 5. The main air flow channel and the secondary air flow channel are separated from each other by a partition structure formed by the tube wall of the first air duct 7 and the tube wall of the second air duct 8. The electrical module of the hair dryer includes a fan assembly 13, which is arranged in the main air flow channel to promote the flow of gas in the main air flow channel to form an air flow flowing from the main air inlet 5 to the main air outlet 6. The main air flow channel and the secondary air flow channel are separated from each other to avoid interference between the air flows in the main air flow channel and the secondary air flow channel and reduce the total air output of the hair dryer.

[0066] The main air inlet 5 is arranged on the end of the handle 2 away from the main body 1. When the user uses the hair dryer and holds the handle 2, the main air inlet 5 is far away from the user's head, which can prevent the user's hair from being sucked into the main air inlet 5. At the same time, the hair dryer is usually used to dry the user's wet hair, and water droplets in wet hair are easy to drip onto the hair dryer. When the user uses the hair dryer and holds the handle 2, the end of the handle 2 away from the main body 1, that is, the main air inlet 5 is usually facing downward. When water droplets fall near the main air inlet 5, the water droplets flow downward and are not easy to enter the main air flow channel, which can reduce the probability of failure and leakage of electrical modules such as the fan assembly 13 in the main air flow channel, and improve the reliability and safety of the product.

[0067] like Figure 1 to Figure 13 As shown, the solid hollow arrows in the figure indicate the flow direction of the airflow in the secondary airflow channel, and the dashed solid arrows indicate the flow direction of the airflow in the main airflow channel. Since the main air outlet 6 and the secondary air outlet 4 are both arranged on the first end of the main body 1, when the hair dryer blows air through the main air outlet 6, the air pressure near the main air outlet 6 decreases, so that the gas in the secondary airflow channel is sucked in and blown toward the front end of the main body 1 together with the airflow in the main air outlet 6. Therefore, during the blowing process of the main air outlet 6, the secondary air outlet 4 can continue to blow air, increasing the total air volume of the hair dryer.

[0068] At the same time, since the secondary air flow channel is composed of the first air duct 7 and the second air duct 8, the first air duct 7 and the second air duct 8 are both tubular structures with regular interiors and no other additional blocking structures, and the gas resistance is low, which is conducive to the flow of gas in the first air duct 7 and the second air duct 8, so as to increase the gas flow in the secondary air flow channel and increase the total amount of air output of the hair dryer. At the same time, since the first air duct 7 and the second air duct 8 have regular interiors, when debris such as the user's hair accidentally enters the secondary air flow channel, it is not easy to be entangled in the secondary air flow channel and is easy to escape, thereby improving the safety of the hair dryer.

[0069] like Figure 2 , Fig. 9As shown, in this embodiment, there are multiple main air outlets 6, each of which is in an arc shape, and multiple main air outlets 6 are arranged in a circular ring around the secondary air outlet 4, so that the secondary air outlet 4 is simultaneously located in the low pressure area of ​​each main air outlet 6 to increase the air volume of the secondary air outlet 4. At the same time, adjacent main air outlets 6 are arranged at intervals, and the ring formed by the multiple main air outlets 6 is connected inside and outside, which is conducive to improving the structural strength of the shell of the main body 1 at the first end.

[0070] like Figure 1 , Figure 8 As shown, in this embodiment, the main body 1 is cylindrical, and the two ends of the cylinder are respectively the first end and the second end, and the secondary air inlet 3 is arranged on the side wall of the main body 1. The secondary air inlet can be rectangular, oblong hole-shaped or elliptical. It should be understood that the circular shape is a special elliptical shape. The elliptical secondary air inlet can be either a conventional elliptical shape (that is, an elliptical shape with unequal major and minor axes) or a circular shape (that is, an elliptical shape with equal major and minor axes). Both conventional elliptical shapes and circular shapes should belong to the protection scope of this application.

[0071] Figure 1 and Figure 8 In the figure, the X direction is the axial direction of the main body 1, and the Y direction and the Z direction are two mutually perpendicular radial directions of the main body 1. The secondary air outlet 4 is in the X direction, the first air duct 7 extends along the X direction, the secondary air inlet 3 is in the Y direction, the second air duct 8 extends along the Y direction, and the handle 2 is connected to the main body 1 along the Z direction.

[0072] In this embodiment, the handle 2 is arranged along the Z direction, perpendicular to the X direction, that is, the handle 2 is perpendicular to the axial direction of the main body 1. When the handle 2 is arranged perpendicular to the axial direction of the hair dryer, the size of the handle 2 in the axial direction of the hair dryer is the smallest, which is conducive to reducing the size of the hair dryer in the X direction and facilitating the storage of the hair dryer. At the same time, when the user uses the hair dryer and the first end of the main body 1 faces the user, the handle 2 is roughly in a vertical state, which conforms to the principle of ergonomics. In some embodiments, the circuit board assembly 11 can also be arranged in the main air flow channel in the handle 2 to reduce the weight and volume of the main body 1, making the hair dryer lighter as a whole.

[0073] like Figure 3 and Figure 4 As shown, in some embodiments, a filter 16 is further provided in the handle 2, and the filter 16 is located between the main air inlet 5 and the fan assembly 13 to prevent debris outside the hair dryer from entering the fan assembly 13 from the main air inlet 5, thereby reducing the probability of failure of the fan assembly 13 and preventing the user's hair from being caught in the fan assembly 13, thereby improving the safety and reliability of the hair dryer.

[0074] In other embodiments, the end of the handle 2 away from the main body 1 can also be tilted toward the second end of the main body 1, that is, the angle between the extension direction of the handle 2 and the axial direction of the main body 1 is an obtuse angle, which conforms to the shape of the human hand and makes the use of the hair dryer more comfortable.

[0075] like Figure 1 to Figure 13 As shown, in this embodiment, the main body 1 is cylindrical. When the cross-sectional area is the same, the side length of the cylindrical cross section is the shortest, which is conducive to saving the material cost of the main body 1. In other embodiments, the main body 1 can also be other shapes such as an elliptical cylinder, a polygonal cylinder, etc.

[0076] In this embodiment, in the direction extending from the first end to the second end, that is, in the X direction, the length dimension of the first air duct 7 is a, and the length dimension of the main body 1 is b, 0.3b≤a≤0.8b. Since the first air duct 7 extends from the secondary air outlet 4 to the second end, if the first air duct 7 is too long or too short, the second end will move accordingly, which is not conducive to the center of gravity balance of the main body 1. Specifically, in this embodiment, 0.5b≤a≤0.75b, the length of the first air duct 7 is appropriate, which is conducive to the center of gravity balance of the main body 1 and improves the user's feel.

[0077] like Figure 3 , Figure 5 , Fig.10 and Fig.12 As shown, in this embodiment, the electrical module of the hair dryer further includes a circuit board assembly 11 and a heating assembly 14. The fan assembly 13 and the heating assembly 14 are sequentially arranged in the main air flow channel from the main air inlet 5 to the main air outlet 6. The fan assembly 13 pushes the air flow from the main air inlet 5 to the main air outlet 6 in the main air flow channel, and the heating assembly 14 can heat the air flow passing through it, so that the air flow blown out of the main air outlet 6 becomes hot air.

[0078] Specifically, in this embodiment, the fan assembly 13 is arranged in the hollow of the handle 2. In actual use, the handle 2 is usually located below the main body 1. The fan assembly 13 is arranged in the handle 2 to lower the center of gravity of the hair dryer as a whole in actual use, making the rotation of the main body 1 more flexible during use. At the same time, since the internal space of the main body 1 is limited, the fan assembly 13 is arranged in the handle 2, which is conducive to reducing the difficulty of arranging the components in the main body 1.

[0079] In this embodiment, the circuit board assembly 11 is also arranged in the primary air flow channel, that is, the circuit board assembly 11 is located outside the secondary air flow channel. Under normal circumstances, when a user uses the hair dryer and holds the handle 2, the end of the handle 2 away from the main body 1, that is, the main air inlet 5, is usually facing downward. When water droplets in the user's wet hair fall near the main air inlet 5, the water droplets flow downward and are not easy to enter the primary air flow channel, which can reduce the failure probability of the circuit board assembly 11 and improve the reliability of the product.

[0080] Specifically, Figure 3~Figure 7 As shown, in some embodiments, the fan assembly 13, the circuit board assembly 11 and the heating assembly 14 are sequentially arranged in the main air flow channel from the main air inlet 5 to the main air outlet 6. The airflow in the main air flow channel passes through the circuit board assembly 11 and then flows through the heating assembly 14. The airflow in the main air flow channel can cool the circuit board assembly 11 to prevent the circuit board assembly 11 from overheating and failing. The circuit board assembly 11 can also heat the airflow in the main air flow channel, utilizing the heat generated by the circuit board assembly 11 to improve the overall energy utilization efficiency of the hair dryer. At the same time, in the direction of airflow in the main air flow channel, the circuit board assembly 11 is arranged between the heating assemblies 14, which can also prevent the airflow heated by the heating assembly 14 from flowing through the circuit board assembly 11, thereby preventing the circuit board assembly 11 from being damaged due to overheating.

[0081] In other embodiments, the circuit board assembly 11 can also be arranged in the hollow of the handle 2 to lower the center of gravity of the hair dryer during actual use, so that the hair dryer can be rotated more flexibly during use. At the same time, since the internal space of the main body 1 is limited, the circuit board assembly 11 is arranged in the handle 2, which is conducive to reducing the difficulty of arranging parts in the main body 1. Preferably, the circuit board assembly 11 is arranged downstream of the fan assembly and upstream of the heating assembly in the main airflow channel, and the airflow generated by the fan assembly can be used to cool the circuit board assembly, and the airflow that is about to flow to the heating assembly can also be preheated.

[0082] In this embodiment, the main body 1 has a first cavity 9 and a second cavity 10, the first cavity 9 is arranged around the first air duct 7, the second cavity 10 is located behind the first air duct 7 in the extension direction of the first air duct 7, and the secondary air inlet 3 is located between the first cavity 9 and the second cavity 10. The first cavity 9 and the second cavity 10 are formed by the partition structure and the shell of the main body 1, and the first cavity 9 and the second cavity 10 are separated from the secondary air flow channel in the main body 1 by the partition structure.

[0083] like Figure 7 and Fig.11As shown, in this embodiment, the heating component 14 is arranged in the first cavity 9, and the circuit board component 11 is arranged in the second cavity 10, that is, the heating component 14 is arranged close to the first end of the main body 1, and the circuit board component 11 is arranged close to the second end of the main body 1. The first cavity 9 is close to the first end of the main body 1, and the second cavity 10 is close to the second end of the main body 1. The circuit board component 11 and the heating component 14 are respectively located at the two ends of the main body 1, which is conducive to the center of gravity of the main body 1 being centered, so that the main body 1 is in a balanced state when the hair dryer is used. At the same time, the secondary air inlet 3 is located between the circuit board component 11 and the heating component 14, which is conducive to the complete first cavity 9 and the second cavity 10 being arranged at both ends of the main body 1.

[0084] In this embodiment, the first cavity 9 is a part of the main airflow channel, which is respectively connected to the main air outlet 6 and the hollow of the handle 2, and the second cavity 10 is a circuit board installation cavity, and the circuit board assembly 11 is installed in the second cavity 10. Since the second cavity 10 is separated from the secondary airflow channel in the main body 1 by a partition structure, the circuit board assembly 11 is installed in the second cavity 10, which can prevent the moisture of the airflow in the secondary airflow channel from entering the circuit board installation cavity and causing the circuit board assembly 11 to fail, thereby improving the reliability of the hair dryer.

[0085] like Fig.10 and Fig.11 As shown, in some embodiments, a partition wall is provided between the first cavity 9 and the second cavity 10, the second cavity 10 is provided independently, and the second cavity 10 and the first cavity 9 are separated from each other, so as to prevent moisture in the airflow in the first cavity 9 from entering the circuit board mounting cavity and causing failure of the circuit board assembly 11, thereby improving the reliability of the hair dryer.

[0086] like Figure 3~Figure 7 As shown, in other embodiments, the second cavity 10 is connected to the main air flow channel, and the air flow in the main air flow channel can enter the circuit board installation cavity to cool the circuit board assembly 11 to prevent the circuit board assembly 11 from overheating and malfunctioning.

[0087] Specifically, Figure 4~Figure 6 As shown, at the connection point between the circuit board installation cavity and the main air flow channel, a diverter 15 is provided in the main air flow channel, and the diverter 15 is used to divert part of the air flow in the main air flow channel to the circuit board installation cavity, and the remaining part continues to pass through the main air flow channel to reach the main air outlet 6. The two sides of the diverter 15 are respectively facing the circuit board installation cavity and the main air flow channel, so as to guide the air flow to the circuit board installation cavity and the main air flow channel respectively.

[0088] like Figure 4~Figure 6As shown, the main air flow channel is connected with the circuit board installation cavity at the connection point between the handle 2 and the main body 1, that is, the circuit board installation cavity is connected with the main air flow channel in the handle 2, the main air flow channel in the handle 2 extends along the length direction of the handle 2, and the main air flow channel in the main body 1 extends along the X direction. The airflow in the main air flow channel changes its flow direction at the connection point between the handle 2 and the main body 1, and the diverter plate 15 is arranged at the connection point between the handle 2 and the main body 1 to divert and guide the airflow in the main air flow channel, thereby reducing the number of changes in the flow direction of the airflow in the main air flow channel and reducing the loss of airflow power in the main air flow channel.

[0089] Specifically, the second cavity 10, i.e., the circuit board installation cavity, is also connected to the first cavity 9, i.e., the circuit board installation cavity is connected to the main air flow channel in the main body 1. When the airflow in the handle 2 enters the circuit board installation cavity and cools down the circuit board assembly 11, it can return to the main air flow channel through the connection between the circuit board installation cavity and the first cavity 9, and then blown out from the main air outlet 6. The gas in the circuit board installation cavity does not need to flow back, which improves the circulation effect of the airflow in the circuit board installation cavity and is beneficial to cooling down the circuit board assembly 11.

[0090] like Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, an air guide protrusion 12 is provided in the secondary air flow channel. The air guide protrusion 12 is located at the intersection of the first air guide duct 7 and the second air guide duct 8, and protrudes from the tube wall of the second air guide duct 8 along the second end of the main body 1 toward the first end of the main body 1.

[0091] The air guide protrusion 12 may be in a cone shape or a cylindrical shape to guide the airflow in the second air guide duct 8 into the first air guide duct 7. When there are multiple secondary air inlets 3, the air guide protrusion 12 may reduce the turbulence caused by the collision between the airflows entering from each secondary inlet. The air guide protrusion 12 guides the airflow in the secondary airflow channel and reduces the wind noise caused by the drastic change of the airflow.

[0092] In some embodiments, the air outlet protrusion 12 may be a solid structure. In other embodiments, the interior of the air outlet protrusion 12 is hollow and communicated with the second cavity 10, and the circuit board assembly 11 may be at least partially installed in the hollow of the air outlet protrusion 12. For example, the capacitor of the circuit board assembly 11 may be installed in the hollow of the air outlet protrusion 12. The hollow of the air outlet protrusion 12 increases the volume of the circuit board installation cavity, which is beneficial to the installation of the circuit board assembly 11. The air outlet protrusion 12 may partially extend into the first air guide duct 7 to further increase the hollow volume of the air outlet protrusion 12.

[0093] like Fig.12 and Fig.13As shown, in some embodiments, an attachment 17 is provided on the second end of the main body 1, and the attachment 17 at least partially extends into the secondary air flow channel. Specifically, the second air duct 8 is provided with a communication opening 19 at a position close to the second end, and the attachment 17 extends into the communication opening 19 to communicate with the secondary air flow channel in the second air duct 8.

[0094] Specifically, the attachment 17 may be a hollow can-shaped structure, and the portion of the attachment 17 extending into the secondary airflow channel is provided with a discharge opening 18 connected to the hollow interior of the attachment 17. The attachment 17 may be filled with care substances such as aromatherapy and essential oils, and the substances in the attachment 17 may be blown out along with the airflow in the secondary airflow channel after being discharged from the discharge opening 18. At the same time, the airflow in the secondary airflow channel, when flowing near the discharge opening, will promote the discharge of the substances in the attachment 17. In other embodiments, the attachment 17 may be a solid structure, and the portion of the attachment 17 extending into the secondary airflow channel may be made of solid materials such as solid fresheners, and under the action of the airflow in the secondary airflow channel, the substances in the attachment 17 may be blown out along with the airflow in the secondary airflow channel.

[0095] The accessory 17 can be fixedly connected to the rest of the main body 1 by means of integral molding or the like, and a filling opening is provided on the accessory 17, through which aromatherapy, essential oils and other substances can be added to the accessory 17. Fig.13 As shown, the accessory 17 can also be detachably connected to the rest of the main body 1 by means such as magnetic attraction. After the accessory 17 is removed, the aromatherapy essential oil and other substances can be added to the accessory 17 through the discharge opening 18. It is also possible to replace the accessory 17 as a whole with a new one after the accessory 17 is removed. Furthermore, a communication module is provided in the accessory 17, and the communication module is stored with programs, such as programs for different blowing modes, programs for different blowing temperatures, etc. When the accessory is installed to the hair dryer, the communication module can be connected to the circuit board assembly in the hair dryer for communication, and transmit the program to the circuit board assembly to execute the program. Or the hair dryer can directly identify the program stored in the communication module and directly run the program.

[0096] In summary, in the hair dryer of this embodiment, since the main air outlet 6 and the secondary air outlet 4 are both arranged on the first end of the main body 1, when the hair dryer blows air through the main air outlet, the air pressure near the main air outlet is reduced, so that the gas in the secondary air outlet 4 is sucked in and flows along with the airflow of the main air outlet. At the same time, a secondary air inlet 3 is arranged on the side of the hair dryer main body 1, and the secondary air inlet 3 is connected to the secondary air outlet 4. After the gas in the secondary air outlet 4 is sucked out, it can be replenished through the secondary air inlet 3. Therefore, during the process of blowing air through the main air outlet 6, the secondary air outlet 4 can continue to blow air, thereby increasing the total air volume of the hair dryer.

[0097] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. The embodiments provided by the present invention may be combined with each other. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A hair dryer, characterized in that: include: A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end of the main body, and a secondary air inlet being arranged between the first end and the second end; A secondary air flow channel, wherein the secondary air flow channel is at least partially disposed in the main body, and the secondary air flow channel is connected to the secondary air inlet and the secondary air outlet; Among them, the secondary air flow channel includes a first air duct and a second air duct, the second air duct is connected to the secondary air inlet and extends from the secondary air inlet to the interior of the main body, the first air duct is connected to the secondary air outlet and extends from the secondary air outlet to the second end until it intersects and connects with the second air duct.

2. A hair dryer, characterized in that: include: A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end of the main body, and a secondary air inlet being arranged between the first end and the second end; A secondary air flow channel is disposed in the main body, the secondary air flow channel being connected to the secondary air inlet and the secondary air outlet; The secondary air flow channel includes a first air duct and a second air duct, the second air duct is connected to the secondary air inlet and extends from the secondary air inlet to the inside of the main body, the first air duct is connected to the secondary air outlet and extends from the secondary air outlet to the second end to intersect and communicate with the second air duct, In the direction extending from the first end to the second end, the length dimension of the first air duct is a, the length dimension of the main body is b, and 0.3b≤a≤0.8b.

3. The hair dryer according to any one of claims 1-2, characterized in that: The first air duct is perpendicular to the second air duct.

4. The hair dryer according to any one of claims 1-2, characterized in that: The secondary air inlet is rectangular, oblong or elliptical.

5. The hair dryer according to any one of claims 1-2, characterized in that: The main body is cylindrical, and two ends of the cylinder are the first end and the second end respectively, and the secondary air inlet is arranged on the side wall of the cylinder.

6. The hair dryer according to any one of claims 1-2, characterized in that: The second air guide pipe passes through the main body, and forms the secondary air inlets on two opposite sides of the main body.

7. The hair dryer according to any one of claims 1-2, characterized in that: The second end of the body is closed.

8. The hair dryer according to any one of claims 1-2, characterized in that: The hair dryer is provided with a main air flow channel separated from a secondary air flow channel, and the hair dryer also has a main air inlet, and the main air flow channel is connected to the main air inlet and the main air outlet respectively. The hair dryer also includes a fan assembly and a heating assembly, and the fan assembly and the heating assembly are sequentially arranged in the main air flow channel from the main air inlet to the main air outlet.

9. The hair dryer according to claim 8, characterized in that: The hair dryer further comprises a circuit board assembly, and a circuit board mounting cavity for accommodating the circuit board assembly is provided in the main body; The circuit board installation cavity has a partition wall, and the circuit board installation cavity is separated from the main airflow channel and the secondary airflow channel by the partition wall, or The circuit board installation cavity has a partition wall, the circuit board installation cavity is separated from the secondary air flow channel by the partition wall, and a connecting hole is opened on the partition wall, and the circuit board installation cavity is connected with the main air flow channel through the connecting hole.

10. The hair dryer according to claim 8, characterized in that: The hair dryer also includes a hollow handle connected to the main body, the main air inlet is arranged on the end of the handle away from the main body, the main air flow channel is partially located in the handle, and the fan assembly is arranged in the main air flow channel in the handle.

11. The hair dryer according to claim 10, characterized in that: The hair dryer also includes a circuit board assembly disposed in a main airflow channel within the handle.

12. The hair dryer according to claim 10, characterized in that: A circuit board installation cavity is provided in the main body, a circuit board assembly is provided in the circuit board installation cavity, the circuit board installation cavity is connected with the main air flow channel, a diverter plate for diverting part of the air flow in the main air flow channel to the circuit board installation cavity is provided in the main air flow channel, and the diverter plate is provided at the connection between the circuit board installation cavity and the main air flow channel.

13. The hair dryer according to claim 12, characterized in that: The main air flow channel is communicated with the circuit board installation cavity at the location where the handle is connected to the main body.

14. The hair dryer according to claim 8, characterized in that: A circuit board assembly is disposed in the main body, the circuit board assembly is disposed close to the second end of the main body, the heating assembly is disposed close to the first end of the main body, and the secondary air inlet is located on the outer surface of the main body between the circuit board assembly and the heating assembly.

15. The hair dryer according to claim 8, characterized in that: The hair dryer also includes a circuit board assembly. The fan assembly, the circuit board assembly and the heating assembly are arranged in sequence in the main air flow channel from the main air inlet to the main air outlet.

16. The hair dryer according to any one of claims 1-2, characterized in that: The secondary air flow channel is provided with an air guide protrusion for guiding the air flow in the second air guide duct into the first air guide duct. The air guide protrusion is located at the intersection of the first air guide duct and the second air guide duct, and protrudes from the second end of the main body to the first end of the main body.

17. The hair dryer according to claim 16, characterized in that: A circuit board installation cavity is provided in the main body, a circuit board assembly is provided in the circuit board installation cavity, the air guide protrusion has a hollow space connected to the circuit board installation cavity, and the circuit board assembly is at least partially located in the hollow space of the air guide protrusion.

18. The hair dryer according to any one of claims 1-2, characterized in that: A communication opening is provided at a position of the second air guide tube close to the second end, and the hair dryer further comprises an accessory filled with a care substance, and the accessory extends into the communication opening to communicate with the secondary air flow channel.

19. The hair dryer according to claim 18, characterized in that: The accessory is provided with a communication module, in which a program is stored. When the accessory is installed on the hair dryer, the communication module can be connected to the hair dryer for communication.

20. A hair dryer, characterized in that: include: A main body, the main body having a first end for air outlet and a second end away from the first end, the first end of the main body being provided with a main air outlet and a secondary air outlet, and a secondary air inlet being provided between the first end and the second end; a main air flow channel, the main air flow channel being in communication with the main air outlet; a secondary air flow channel, the secondary air flow channel communicating with the secondary air inlet and the secondary air outlet; An electrical module, arranged in the main air flow channel; Wherein, the main air flow channel and the secondary air flow channel are separated and independent from each other.

21. The hair dryer according to claim 20, characterized in that: The secondary air flow channel includes a first air duct and a second air duct arranged in the main body, the second air duct is connected to the secondary air inlet and extends from the secondary air inlet to the inside of the main body, the first air duct is connected to the secondary air outlet and extends from the secondary air outlet to the second end of the main body until it intersects and communicates with the second air duct; The first air duct is perpendicular to the second air duct; The secondary air inlet is rectangular, oblong or elliptical; The second air guide pipe passes through the main body, and forms the secondary air inlets on two opposite sides of the main body.

22. The hair dryer according to claim 21, characterized in that: The secondary air flow channel is provided with an air guide protrusion for guiding the air flow in the second air guide pipe into the first air guide pipe, the air guide protrusion is located at the intersection of the first air guide pipe and the second air guide pipe, and protrudes along the first air guide pipe toward the secondary air outlet; A circuit board installation cavity is provided in the main body, a circuit board assembly is provided in the circuit board installation cavity, a hollow space connected to the circuit board installation cavity is provided inside the air guide protrusion, and the circuit board assembly is at least partially located in the hollow space of the air guide protrusion.

23. The hair dryer according to claim 20, characterized in that: The hair dryer also has a main air inlet connected to the main air flow channel, the electrical module includes a fan assembly, a circuit board assembly and a heating assembly, and the fan assembly, the upper circuit board assembly and the heating assembly are arranged in sequence in the main air flow channel from the main air inlet to the main air outlet; The hair dryer further comprises a handle connected to the main body, the main air inlet is arranged on an end of the handle away from the main body, the main air flow channel is partially located in the handle, and the fan assembly is arranged in the main air flow channel in the handle; The circuit board assembly is arranged near the second end of the main body, or is arranged in the main air flow channel in the handle. When the circuit board assembly is arranged near the second end of the main body, the heating assembly is arranged near the first end of the main body, and the secondary air inlet is located on the outer surface of the main body between the circuit board assembly and the heating assembly.

24. The hair dryer according to claim 23, characterized in that: A circuit board installation cavity for accommodating the circuit board assembly is provided in the main body; The circuit board installation cavity is separated from the primary airflow channel and the secondary airflow channel respectively, or The circuit board installation cavity is connected to the main air flow channel at the position where the handle is connected to the main body. A diverter is provided in the main air flow channel at the connecting position between the circuit board installation cavity and the main air flow channel. The main air flow channel is provided with a diverter for diverting part of the air flow in the main air flow channel to the circuit board installation cavity. The diverter is provided at the connecting position between the circuit board installation cavity and the main air flow channel.

25. The hair dryer according to claim 21, characterized in that: A communication opening is provided at a position of the second air guide tube close to the second end, and the hair dryer further comprises an accessory filled with a care substance, and the accessory extends into the communication opening to communicate with the secondary air flow channel.

26. A hair dryer, characterized in that: include: A main body, the main body having a first end for air outlet and a second end away from the first end, a main air outlet and a secondary air outlet being arranged on the first end, and a secondary air inlet being arranged between the first end and the second end; a first air duct, the first air duct being connected to the secondary air outlet and extending from the secondary air outlet to the second end; A first cavity, the first cavity is arranged in the main body around the first air duct; A second cavity, wherein the second cavity is disposed in the main body, and the first air duct and the second cavity are disposed sequentially from the first end to the second end; Wherein, the secondary air inlet is located between the first cavity and the second cavity and is connected to the first air duct, and the first air duct is separated from the first cavity and the second cavity respectively.

27. The hair dryer according to claim 26, characterized in that: A second air duct connected to the secondary air inlet is disposed in the main body, the second air duct extends from the secondary air inlet to the inside of the main body, and intersects and communicates with the first air duct; The first air duct is perpendicular to the second air duct; The secondary air inlet is rectangular, oblong or elliptical; The second air guide pipe passes through the main body, and forms the secondary air inlets on two opposite sides of the main body.

28. The hair dryer according to claim 27, characterized in that: An air guide protrusion is provided in the main body for guiding the airflow in the second air guide duct into the first air guide duct. The air guide protrusion is located at the intersection of the first air guide duct and the second air guide duct, and protrudes along the first air guide duct toward the secondary air outlet. The air guide protrusion is hollow inside and is connected to the second cavity.

29. The hair dryer according to claim 26, characterized in that: The hair dryer further comprises a hollow handle connected to the main body, a main air inlet is arranged on one end of the handle away from the main body, the handle is connected to the first cavity, and the handle is also connected to the first cavity through the second cavity; The hair dryer includes a heating component, a circuit board component and a fan component. The fan component is arranged in the handle, the heating component is arranged in the first cavity, and the circuit board component is arranged in the second cavity or in the handle.

30. The hair dryer according to claim 29, characterized in that: The main body is provided with a diverter sheet for diverting part of the airflow in the handle to the first cavity and the second cavity respectively, and the first cavity and the second cavity are both connected to the handle at the diverter sheet.

31. The hair dryer according to claim 27, characterized in that: A communication opening is arranged near the second end of the second air duct, and the hair dryer further comprises an accessory filled with a care substance, and the accessory extends into the communication opening to communicate with the second air duct.

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