A compact hair dryer

Abstract

The utility model relates to the field of hair dryer provides a miniaturization hair dryer, including casing, cylinder and heating wire subassembly, and the casing includes the air tube and handle, and the air tube and handle intercommunication arrangement, the cylinder includes the first cylinder, and the first cylinder includes first casing and second casing, and is equipped with the first air duct between first casing and second casing, and the first air duct is equipped with the air outlet in first cylinder axial one end, and first casing is equipped with first abutment portion in the one end close to air outlet, heating wire subassembly includes mounting plate, the heating wire of winding in mounting plate and installation support, and installation support is equipped with in the one end of first casing away from air outlet, and mounting plate is along first cylinder axial direction abuts and installs between installation support and first abutment portion, the mounting plate of this application abuts and installs between installation support and the first abutment portion of first casing, makes mounting plate relatively located installation support's one side, reduces the radial length of heating wire subassembly, and then reduces the radial length of cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hair dryers, and further to a miniaturized hair dryer. Background Technology

[0002] Currently, hair dryers have a heating wire assembly inside the nozzle to heat the airflow. The mounting plate of the heating wire assembly is mostly fitted onto the outside of the mounting bracket, and the protective cover is fitted onto the inner and outer rings of the mounting plate. This results in a large overall radial length of the heating wire assembly, which in turn leads to a large diameter of the hair dryer nozzle. Moreover, the nozzle of most hair dryers is axially hollow, which further increases the diameter of the hair dryer nozzle, making it difficult to miniaturize the hair dryer. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a miniaturized hair dryer. A heating wire assembly is provided in the first air duct of the barrel. The mounting plate of the heating wire assembly is abutted between the mounting bracket and the first abutment part of the first housing, so that the mounting plate is located on one side of the mounting bracket, reducing the radial length of the heating wire assembly, thereby reducing the radial length of the barrel, thus preparing for the miniaturization of the hair dryer barrel.

[0004] To achieve the above objectives, this utility model provides a miniaturized hair dryer, including a housing, a cylindrical body, and a heating wire assembly. The housing includes a blower and a handle, and the blower and the handle are connected in communication. The cylindrical body is disposed inside the air duct. The cylindrical body includes a first cylindrical body, the first cylindrical body includes a first shell and a second shell, the second shell is coaxially disposed outside the first shell, a first air duct is provided between the first shell and the second shell, the first air duct has an air outlet at one axial end of the first cylindrical body, and a first abutting part is provided at one end of the first shell near the air outlet. The heating wire assembly includes a heating wire, a mounting plate, and a mounting bracket. The mounting bracket is sleeved on the end of the first housing away from the air outlet. The mounting plate is abutted between the mounting bracket and the first abutting part along the axial direction of the first cylinder. The heating wire is wound around the mounting plate.

[0005] In some embodiments, the first housing is provided with a first mounting groove at the end away from the air outlet, and the mounting bracket is sleeved in the first mounting groove; The mounting bracket is provided with a second mounting groove around it, and the mounting plate is abutted between the mounting groove and the first abutting part.

[0006] In some embodiments, the heating wire assembly further includes a first heat insulation cover and a second heat insulation cover, a third mounting groove is provided on the inner side of the end of the mounting plate near the air outlet, a fourth mounting groove is provided on the inner side of the end of the mounting bracket near the air outlet, and the first heat insulation cover is abutted and installed between the third mounting groove and the fourth mounting groove. The second housing has a second abutment on the side near the air outlet, and the second heat insulation cover is disposed on the outside of the mounting plate and abuts against the second abutment.

[0007] In some embodiments, the second housing is provided with a first inclined surface on the side near the air outlet, and the mounting plate is provided with a second inclined surface at the end near the air outlet, the second inclined surface being adapted to abut against the second inclined surface.

[0008] In some embodiments, the cylinder further includes a second cylinder, the mounting bracket has a first assembly groove at one end away from the air outlet, the second housing has a second assembly groove at one end away from the air outlet, the second cylinder has a third abutment and a fourth abutment, the second cylinder is sleeved on the second housing and the mounting bracket, the third abutment is abutted and installed in the first assembly groove, and the fourth abutment is abutted and installed in the second assembly groove.

[0009] In some embodiments, a third cylindrical body is further included, which is sleeved on the outside of the second cylindrical body. The first housing is provided with a first mounting groove at the end away from the air outlet, and the third cylindrical body is provided with a fifth abutting part at the end near the air outlet. The fifth abutting part of the third cylindrical body is abutted and installed on the side of the first mounting groove away from the air outlet and is located below the third abutting part.

[0010] In some embodiments, the first cylinder further includes a third housing, which is disposed inside the second housing and a second air duct is provided between the second housing and the third housing. The third housing is adapted to house care components and circuit boards.

[0011] In some embodiments, the third housing includes a mounting wall and a mounting shell, the mounting wall being disposed below the second air duct and located at the midpoint of the axial length of the second housing, and the mounting shell being parallel to the axial direction of the second housing.

[0012] In some embodiments, the projection of the third housing onto the third air duct accounts for 30-60% of the total projection of the third air duct.

[0013] In some embodiments, the end of the heating wire assembly furthest from the air outlet is flush with the mounting wall.

[0014] Compared with the prior art, the miniaturized hair dryer provided by this utility model has at least one of the following beneficial effects: 1. A heating wire assembly is provided in the first air duct of the cylinder. The mounting plate of the heating wire assembly is abutted between the mounting bracket and the first abutment part of the first housing, so that the mounting plate is located on one side of the mounting bracket, reducing the radial length of the heating wire assembly, thereby reducing the radial length of the cylinder, and preparing for the miniaturization of the blower cylinder.

[0015] 2. The first heat insulation cover is abutted between the third and fourth mounting slots, so that the first heat insulation cover is located inside the mounting plate, which ensures the heat insulation effect while reducing the thickness of the first heat insulation cover, thereby reducing the overall radial length of the heating wire assembly.

[0016] 3. The second cylinder is abutted and installed on the first assembly groove of the mounting bracket and the second assembly groove of the second housing, and the third cylinder is abutted and installed on the outer side of the second cylinder and the first mounting groove of the first housing, so that the fifth abutting part and the third abutting part are abutted and installed between the first assembly groove and the first mounting groove, and the mounting bracket is firmly fixed between the first housing and the second cylinder, while also reducing the thickness of the third cylinder and the second cylinder.

[0017] 4. A third housing is provided inside the second air duct of the second housing. The third housing is suitable for installing the care components and circuit boards. While ensuring the airflow of the second air duct, some components are placed inside the third housing to reduce the number of components inside the air duct, thereby preparing for a reduction in the diameter of the air duct. Moreover, the care components can also improve the user experience and make full use of the space of the second air duct. Attached Figure Description

[0018] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0019] Figure 1 This is a structural diagram of the shell; Figure 2 This is a cross-sectional view of the cylinder; Figure 3 This is a cross-sectional view of the cylinder; Figure 4 This is a structural diagram of the mounting bracket; Figure 5 This is a structural diagram of the first shell; Figure 6 This is an exploded view of the cylinder; Figure 7 This is a diagram of the second cylinder; Figure 8 This is a structural diagram of the third cylinder; Figure 9 This is a cross-sectional view of the shell.

[0020] Explanation of icon numbers: Housing 1, air duct 11, handle 12, cylinder 2, air outlet 20, first cylinder 21, first air duct 210, first housing 211, first abutment part 2111, first mounting groove 2112, abutment block 2113, second housing 212, second abutment part 2121, first inclined surface 2122, second assembly groove 2123, third housing 213, second air duct 2130, mounting wall 2131, mounting shell 2132, care assembly 2133, circuit board 2134. Second cylinder 22, third abutment part 221, fourth abutment part 222, third cylinder 23, fifth abutment part 231 Heating wire assembly 3, heating wire 31, mounting plate 32, third mounting groove 321, second inclined surface 322, mounting bracket 33, abutment groove 331, second mounting groove 332, fourth mounting groove 333, first assembly groove 334. First heat insulation cover 4, second heat insulation cover 5. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0022] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0023] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0026] refer to Figures 1 to 3 This utility model provides a miniaturized hair dryer, including a housing 1, a cylindrical body 2, and a heating wire assembly 3. The housing 1 includes a blower tube 11 and a handle 12, which are connected. The cylindrical body 2 is disposed inside the blower tube 11 and includes a first cylindrical body 21. The first cylindrical body 21 includes a first housing 211 and a second housing 212. The second housing 212 is coaxially disposed outside the first housing 211. A first air duct 210 is provided between the first housing 211 and the second housing 212. The first air duct 210 has an air outlet 20 at one axial end of the first cylindrical body 21. The first housing 211 has a first abutment portion 2111 at one end near the air outlet 20. The heating wire assembly 3 includes a heating wire 31, a mounting plate 32, and a mounting bracket 33. The mounting bracket 33 is sleeved on the end of the first housing 211 away from the air outlet 20. The mounting plate 32 is abutted and installed between the mounting bracket 33 and the first abutment portion 2111 along the axial direction of the first cylindrical body 21. The heating wire 31 is wound around the mounting plate 32.

[0027] In this embodiment, a heating wire assembly 3 is provided in the first air duct 210 of the cylinder 2. The mounting plate 32 of the heating wire assembly 3 is abutted between the mounting bracket 33 and the first abutting part 2111 of the first housing 211, so that the mounting plate 32 is located on one side of the mounting bracket 33, reducing the radial length of the heating wire assembly, thereby reducing the radial length of the cylinder 2, and preparing for the miniaturization of the blower's air duct 11.

[0028] Specifically, housing 1 includes a blower 11 and a handle 12, which are vertically connected. Cylinder 2 includes a first cylinder 21, inside which a first air duct 210 is provided. The first air duct 210 is also connected to the handle 12, which contains a motor assembly capable of injecting gas into the first air duct 210. The first cylinder 21 includes a first housing 211 and a second housing 212 coaxially arranged. The second housing 212 is fitted over the first housing 211. The first air duct 210 is located between the first housing 211 and the second housing 212. The second housing 212 also contains a second air duct 2130, which supplies airflow to the outlet side via negative pressure. The first housing 211 is provided with a first mounting groove 2112 at the end away from the air outlet 20. The first mounting groove 2112 is also provided with an abutment block 2113. The mounting bracket 33 is also provided with an abutment groove 331 on the inner side. The mounting bracket 33 is sleeved in the first mounting groove 2112 and the abutment block 2113 is abutted and installed in the abutment groove 331. The abutment block 2113 and the abutment groove 331 abut against each other, which is suitable for preventing the mounting bracket 33 from shaking and firmly fixing the mounting bracket 33 to the end of the first housing 211 away from the air outlet 20. The mounting bracket 33 is provided with a second mounting groove 332 around it. The mounting plate 32 is abutted between the second mounting groove 332 and the first abutting part 2111. The mounting plate 32 includes, but is not limited to, mica sheets. The mounting plate 32 is disposed opposite to the side of the mounting bracket 33 near the air outlet 20. Compared with abutting the mounting plate 32 between the second housing 212 and the mounting bracket 33, the radial length of the mounting plate 32 and the mounting bracket 33 after installation is greatly reduced.

[0029] Further, refer to Figures 2 to 4 The heating wire assembly 3 also includes a first heat insulation cover 4 and a second heat insulation cover 5. The mounting plate 32 has a third mounting groove 321 on the inner side of one end near the air outlet 20. The mounting bracket 33 has a fourth mounting groove 333 on the inner side of one end near the air outlet 20. The first heat insulation cover 4 is abutted between the third mounting groove 321 and the fourth mounting groove 333. The second housing 212 has a second abutting part 2121 on the side near the air outlet. The second heat insulation cover 5 is disposed on the outer side of the mounting plate 32 and abuts against the second abutting part 2121.

[0030] In this embodiment, the first heat insulation cover 4 is abutted and installed between the third mounting groove 321 and the fourth mounting groove 333, so that the first heat insulation cover 4 is located inside the mounting plate 32, which ensures the heat insulation effect while reducing the thickness of the first heat insulation cover 4, thereby reducing the overall radial length of the heating wire assembly 3.

[0031] Specifically, the first heat insulation cover 4 and the second heat insulation cover 5 both include, but are not limited to, mica sheets and other heat insulation materials. The first heat insulation cover 4 is located on the inner ring of the mounting plate 32, that is, the first heat insulation cover 4 is fitted onto the outer side of the first housing 211. The inner side of the mounting plate 32 near the air outlet 20 is provided with a third mounting groove 321, and the inner side of the mounting bracket 33 near the air outlet 20 is provided with a fourth mounting groove 333. The third mounting groove 321 and the fourth mounting groove 333 are both recessed along the radial direction of the first cylinder 21 away from the first housing 211, so that the first heat insulation cover 4 is abutted and installed between the third mounting groove 321 and the fourth mounting groove 333 and is located on the inner side of the mounting plate 32, thereby reducing the thickness of the first heat insulation cover 4. The first heat insulation cover 4 is located on the outer ring of the mounting plate 32, that is, the second heat insulation cover 5 is fitted inside the second housing 212. The second housing 212 has a second abutment part 2121 on the side near the air outlet. The second heat insulation cover 5 is located on the outer side of the mounting plate 32 and abuts against the second abutment part 2121. The position of the second abutment part 2121 corresponds to the position of the first abutment part 2111. Preferably, the second housing 212 also has a first inclined surface 2122 on the side near the air outlet 20, and the mounting plate 32 has a second inclined surface 322 on the end near the air outlet 20. The second inclined surface 322 is adapted to abut against the second inclined surface 322. The first inclined surface 2122 connects the second abutment part 2121 and the air outlet 20. The abutment between the second inclined surface 322 and the first inclined surface 2122 increases the limiting effect of the mounting plate 32 and prevents it from tilting and shaking.

[0032] Further, refer to Figures 5 to 8 The cylinder 2 also includes a second cylinder 22. A first mounting groove 334 is provided at the end of the mounting bracket 33 away from the air outlet. A second mounting groove 2123 is provided at the end of the second housing 212 away from the air outlet 20. A third abutment portion 221 and a fourth abutment portion 222 are provided on the second cylinder 22. The second cylinder 22 is fitted onto the second housing 212 and the mounting bracket 33. The third abutment portion 221 is abutted and installed within the first mounting groove 334, and the fourth abutment portion 222 is abutted and installed within the second mounting groove 2123. The system also includes a third cylinder 23, which is fitted onto the outside of the second cylinder 22. A first mounting groove 2112 is provided at the end of the first housing 211 away from the air outlet 20. A fifth abutment portion 231 is provided at the end of the third cylinder 23 near the air outlet 20. The fifth abutment portion 231 of the third cylinder 23 is abutted and installed on the side of the first mounting groove 2112 away from the air outlet 20 and is located below the third abutment portion 221.

[0033] In this embodiment, the second cylinder 22 is abutted and installed on the first assembly groove 334 of the mounting bracket 33 and the second assembly groove 2123 of the second housing 212. The third cylinder 23 is abutted and installed on the outer side of the second cylinder 22 and the first mounting groove 2112 of the first housing 211, so that the fifth abutting part 231 and the third abutting part 221 are abutted and installed between the first assembly groove 334 and the first mounting groove 2112, and the mounting bracket 33 is firmly fixed between the first housing 211 and the second cylinder 22. At the same time, the thickness of the third cylinder 23 and the second cylinder 22 is also reduced.

[0034] Specifically, the second cylinder 22 and the first cylinder 21 together form a first air passage, the second cylinder 22 is fixedly connected to the mounting bracket 33 and the second shell 212, and the third cylinder 23 is fixedly connected to the second cylinder 22 and the first shell 211, so that the first cylinder 21, the second cylinder 22 and the third cylinder 23 form a complete cylinder 2 structure.

[0035] Further, refer to Figure 9 The first cylinder 21 also includes a third housing 213, which is disposed inside the second housing 212 and a second air duct 2130 is provided between the second housing 212 and the third housing 213. The third housing 213 is suitable for installing the care component 2133 and the circuit board 2134.

[0036] In this embodiment, a third housing 213 is provided inside the second air duct 2130 of the second housing 212. The third housing 213 is suitable for installing the care component 2133 and the circuit board 2134. While ensuring the flow rate of the second air duct 2130, some components are placed inside the third housing 213, reducing the number of components inside the air duct 11, thereby preparing for a reduction in the diameter of the air duct 11. Moreover, the care component 2133 can also improve the user experience and make full use of the space of the second air duct 2130.

[0037] Specifically, the third housing 213 includes a mounting wall 2131 and a mounting shell 2132. The mounting wall 2131 is located below the second air duct 2130 and is positioned at the midpoint of the axial length of the second housing 212. The mounting shell 2132 is parallel to the axial direction of the second housing 212. The end of the heating wire 31 of the heating wire assembly 3 furthest from the air outlet 20 is flush with the mounting wall 2131. The heating wire 31 is closer to the air outlet 20 to concentrate the heat of the heating wire assembly 3 at the air outlet 20, thereby improving the hot air effect of the hair dryer. The mounting shell 2132 is suitable for installing a care component 2133, which includes, but is not limited to, an essential oil component, a negative ion component, and a display component. The third housing 213 not only allows for the installation of the care component 2133 but also reduces the cross-section of the second air duct 2130, achieving a concentrating effect and increasing the airflow of the second air duct 2130, thus achieving multiple benefits. The circuit board 2134 can control the care component 2133 and also has wiring holes on the second housing 212. The circuit board connects the control component and motor component on the handle 12, enabling the circuit board 2134 to control the entire hair dryer. Preferably, the projection of the third housing 213 into the third air duct occupies 30-60% of the total projection of the third air duct. The projection of the third housing 213 into the third air duct is the longitudinal section of the third housing 213, and the total projection of the third air duct is the longitudinal section of the second housing 212. When the area of ​​the third housing 213 occupies 30-60% of the total area of ​​the third air duct, a better balance is achieved between the installation space effect of the third housing 213 and the auxiliary flow effect of the second air duct 2130. It is worth noting that the third housing 213 can also be set at the top, left, and right of the second air duct 2130, and even the third housing 213 can be set in the center of the second air duct 2130 and connected to the second housing 212 by a fixing post.

[0038] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A miniaturized hair dryer, characterized in that, include: A housing, the housing including a blower and a handle, the blower and the handle being connected in communication; A cylindrical body is disposed inside the air duct. The cylindrical body includes a first cylindrical body, which includes a first shell and a second shell. The second shell is coaxially disposed outside the first shell. A first air duct is provided between the first shell and the second shell. The first air duct has an air outlet at one axial end of the first cylindrical body. A first abutting part is provided at one end of the first shell near the air outlet. A heating wire assembly, comprising a heating wire, a mounting plate, and a mounting bracket, wherein the mounting bracket is sleeved on the end of the first housing away from the air outlet, the mounting plate is abutted between the mounting bracket and the first abutting part along the axial direction of the first cylinder, and the heating wire is wound around the mounting plate.

2. A miniaturized hair dryer according to claim 1, characterized in that, The first housing has a first mounting groove at the end away from the air outlet, and an abutment block is also provided in the first mounting groove. The mounting bracket also has an abutment groove on its inner side. The mounting bracket is sleeved in the first mounting groove and the abutment block is abutted and installed in the abutment groove. The mounting bracket is provided with a second mounting groove around it, and the mounting plate is abutted between the second mounting groove and the first abutting part.

3. A miniaturized hair dryer according to claim 2, characterized in that, The heating wire assembly also includes a first heat insulation cover and a second heat insulation cover. The mounting plate has a third mounting groove on the inner side of one end near the air outlet. The mounting bracket has a fourth mounting groove on the inner side of one end near the air outlet. The first heat insulation cover is abutted and installed between the third mounting groove and the fourth mounting groove. The second housing has a second abutment on the side near the air outlet, and the second heat insulation cover is disposed on the outside of the mounting plate and abuts against the second abutment.

4. A miniaturized hair dryer according to claim 3, characterized in that, The second housing is provided with a first inclined surface on the side near the air outlet, and the mounting plate is provided with a second inclined surface at the end near the air outlet, the second inclined surface being adapted to abut against the second inclined surface.

5. A miniaturized hair dryer according to claim 1, characterized in that, The cylinder also includes a second cylinder. The mounting bracket is provided with a first assembly groove at one end away from the air outlet. The second housing is provided with a second assembly groove at one end away from the air outlet. The second cylinder is provided with a third abutment and a fourth abutment. The second cylinder is sleeved on the second housing and the mounting bracket. The third abutment is abutted and installed in the first assembly groove, and the fourth abutment is abutted and installed in the second assembly groove.

6. A miniaturized hair dryer according to claim 5, characterized in that, It also includes a third cylinder, which is sleeved on the outside of the second cylinder. The first housing is provided with a first mounting groove at the end away from the air outlet. The third cylinder is provided with a fifth abutting part at the end near the air outlet. The fifth abutting part of the third cylinder is abutted and installed on the side of the first mounting groove away from the air outlet and is located below the third abutting part.

7. A miniaturized hair dryer according to any one of claims 1-6, characterized in that, The first cylinder also includes a third housing, which is disposed inside the second housing and a second air duct is provided between the second housing and the third housing. The third housing is suitable for installing care components and circuit boards.

8. A miniaturized hair dryer according to claim 7, characterized in that, The third housing includes a mounting wall and a mounting shell. The mounting wall is located below the second air duct and is positioned at the middle of the axial length of the second housing. The mounting shell is parallel to the axial direction of the second housing.

9. A miniaturized hair dryer according to claim 7, characterized in that, The projection of the third housing onto the third air duct accounts for 30-60% of the total projection of the third air duct.

10. A miniaturized hair dryer according to claim 8, characterized in that, The end of the heating wire of the heating wire assembly that is away from the air outlet is flush with the mounting wall.

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