Hair dryer structure

Abstract

The invention discloses a hair dryer structure which comprises a handle and a machine barrel connected to the handle, at least two air flow channels penetrating front and back are formed in the machine barrel, and a driving device used for driving air flow from back to front is arranged in the air flow channels of the machine barrel. A pressure equalizing window which is communicated with the two adjacent airflow channels and is used for enabling airflow of one airflow channel to enter the other airflow channel is arranged between the two adjacent airflow channels, and an adjusting structure which can adjust opening, closing or opening amplitude of the pressure equalizing window is arranged in the machine barrel. The hair drier structure is provided with at least two air ducts and has the pressure stabilizing and flow stabilizing functions.

Description

Technical Field

[0001] The present invention specifically relates to a hair dryer structure. Background Art

[0002] As a common personal care appliance, a hair dryer is widely used for drying and styling hair in daily life. A traditional hair dryer generally includes a handle, a barrel connected to the handle, a driving device (such as a motor driving an impeller) disposed inside the barrel, and a heating element for heating the air flow. Its working principle is to generate an air flow through the driving device, and after being heated by the heating device, hot air is blown out from the air outlet.

[0003] However, in the actual use process, there are some deficiencies in traditional hair dryers. For example, when the air outlet or the air inlet is partially blocked, it is easy to cause the air pressure imbalance in the air flow channel, thereby affecting the stability and efficiency of the air output. In addition, due to the concentrated air flow heating area, if the air flow circulates between different channels, the air flow may be heated multiple times, resulting in too high an air output temperature, which not only affects the user experience but also may pose certain safety hazards.

[0004] In order to solve the above problems, some improved hair dryers attempt to adopt multiple air flow channels to improve the overall air supply capacity. However, due to the lack of an effective pressure regulation mechanism, it is still difficult to achieve dynamic balance of the air flow between the channels, resulting in problems such as uneven wind force and increased noise. At the same time, the position layout and control method of the heating device in the existing structure are also relatively simple, lacking fine management of the air flow path, which limits the further improvement of the device performance.

[0005] The present invention is precisely generated based on the above deficiencies. Summary of the Invention

[0006] The object of the present invention is to overcome the deficiencies of the prior art and provide a hair dryer structure having at least two air ducts and having a function of stabilizing pressure and air flow.

[0007] The present invention is realized by the following technical solutions:

[0008] The present invention provides a hair dryer structure, including a handle and a barrel connected thereto. At least two air flow channels that penetrate from front to back are provided inside the barrel. A driving device for driving the air flow from back to front is provided in the air flow channels of the barrel. A pressure equalizing window for connecting the two adjacent air flow channels and allowing the air flow in one air flow channel to enter another air flow channel is provided between the two adjacent air flow channels. An adjusting structure capable of adjusting the opening, closing or opening amplitude of the pressure equalizing window is provided inside the barrel.

[0009] The hair dryer structure described above, wherein a partition structure is provided in the barrel to divide its inner cavity into two air flow channels, the uniform pressure window is opened on the partition structure and is located in front of the driving device, and the adjusting structure includes an adjusting baffle, which is arranged at the uniform pressure window for blocking the window and is rotatably connected to the partition structure.

[0010] The hair dryer structure described above, wherein a main shaft portion is provided at the rear end of the adjusting baffle, and a shaft groove for accommodating the main shaft portion and allowing it to rotate is provided on the partition structure, so that when the adjusting baffle swings, the front part of the uniform pressure window is opened to a preset amplitude.

[0011] The hair dryer structure described above, wherein a heating device for heating the air flow is further provided in the air flow channel of the barrel.

[0012] The hair dryer structure described above, wherein a heating device for heating the air flow is further provided in the air flow channel of the barrel, the heating device is arranged at a position corresponding to the uniform pressure window, and the front end of the adjusting baffle is located on the front side of the front end of the heating device, or the front end of the adjusting baffle is aligned with the front end of the heating device.

[0013] The hair dryer structure described above, wherein a driving bracket and a heating bracket are provided in the barrel, a first partition for dividing the inner cavity of the driving bracket is provided, a second partition for dividing the inner cavity of the heating bracket is provided, the uniform pressure window is opened on the second partition, the first partition and the second partition together form the partition structure, and the shaft groove is opened on the first partition.

[0014] The hair dryer structure described above, wherein a heating device for heating the air flow is further provided in the air flow channel of the barrel, the heating device is arranged in the heating bracket, and a temperature sensor corresponding to the air flow channel is provided at the front part of the heating bracket.

[0015] The hair dryer structure described above, wherein blocking portions for blocking the swing of the adjusting baffle are provided on both sides of the shaft groove of the driving bracket, so that the adjusting baffle swings within a preset amplitude.

[0016] The hair dryer structure described above, wherein an air inlet cover corresponding to the air flow channel is connected to the rear part of the barrel, and an air inlet channel communicating with the corresponding air flow channel is provided in the air inlet cover.

[0017] The hair dryer structure described above, wherein a dust-proof net is provided in the air inlet channel of the air inlet cover.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Airflow stability control. The hair dryer structure provided by the embodiment can automatically adjust the air pressure balance between the two airflow channels by setting a pressure equalizing window and an adjusting structure between the two airflow channels, ensuring the stability of the airflow speed and efficiency when the air outlet or air inlet of one of the airflow channels is blocked.

[0020] 2. Automatic voltage and speed stabilization function. The adjusting baffle designed based on Bernoulli's principle in the hair dryer structure provided by the embodiment can automatically swing in the presence of a pressure difference, enabling the airflow on the high-pressure side to flow to the low-pressure side, achieving the effect of automatic voltage and speed stabilization, and improving the convenience of use and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the hair dryer of the present invention;

[0022] Figure 2 is a schematic cross-sectional view of the hair dryer of the present invention;

[0023] Figure 3 is an exploded schematic view of the hair dryer of the present invention;

[0024] Figure 4 is a partial part cross-sectional view of the hair dryer of the present invention;

[0025] Figure 5 is a schematic principle view of the hair dryer of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The invention will be further described below with reference to the accompanying drawings:

[0027] The directions described in the specification of the present invention, such as "up", "down", "left", "right", "front", "rear", etc., are all based on the directions of the accompanying drawings and are for the purpose of facilitating the description of the relationships between various components, rather than indicating the only or absolute positional relationships between various components. It is only one implementation manner for implementing the invention and is not a limitation on its implementation manner.

[0028] This embodiment introduces a hair dryer structure, as Figures 1 to 4 shown, including a handle 1 and a barrel 2 connected thereto. Two front-to-back through airflow channels 200 are provided inside the barrel 2. In this embodiment, air inlets 202 corresponding to the airflow channels 200 are opened at the rear end of the barrel 2, and air outlets 203 are opened at the front end.

[0029] Inside each air flow channel 200, a driving device 21 for driving the air flow from the back to the front is provided. This driving device 21 is usually realized by driving an impeller to rotate with a motor, and of course other forms can also be adopted. In this embodiment, each air flow channel 200 is separately configured with a driving device 21, but according to actual needs, one driving device can also be used to drive the air flow in two air flow channels 200 simultaneously.

[0030] A pressure equalizing window 201 for connecting the two air flow channels 200 is provided between the two air flow channels 200, for allowing the air flow in one air flow channel 200 to enter the other air flow channel 200. In addition, an adjusting structure 22 is further provided inside the barrel 2, for adjusting the opening, closing state or opening amplitude of the pressure equalizing window 201.

[0031] By controlling the opening degree of the pressure equalizing window 201 through the adjusting structure 22, the air flow between the air flow channels 200 can be made to flow through each other. As Figure 5 shown, as shown in the figure, the air flow direction is marked as P. When the air outlet or air inlet of one of the air flow channels 200 is blocked, it will cause a pressure difference between the two air flow channels 200. At this time, the pressure equalizing window 201 can be opened through the adjusting structure 22, so that the air flow on the high-pressure side flows to the low-pressure side, thereby maintaining the stability of the overall air outlet speed and efficiency of the hair dryer.

[0032] In addition to this embodiment, three or more air flow channels 200 can also be provided inside the barrel 2, as long as a pressure equalizing window 201 and the corresponding adjusting structure 22 are provided between adjacent two air flow channels 200.

[0033] Furthermore, as Figures 2 to 4 shown, a partition structure 23 for dividing the inner cavity into two air flow channels 200 is provided inside the barrel 2. The pressure equalizing window 201 is provided on this partition structure 23 and is located in front of the driving device 21. The adjusting structure 22 includes an adjusting baffle 221, which is arranged at the pressure equalizing window 201 for blocking this window and is rotatably connected to the partition structure 23. When there is a pressure difference between the two air flow channels 200, according to Bernoulli's principle, the air flow will push the adjusting baffle 221 to swing towards the side with faster flow velocity, so that the air flow on the high-pressure side flows into the low-pressure side, achieving the effect of automatic pressure and speed stabilization.

[0034] As a preferred solution, as Figures 2 to 4 shown, a main shaft portion 222 is provided at the rear end of the adjusting baffle 221, and a shaft groove 231 for accommodating this main shaft portion 222 and allowing it to rotate is provided on the partition structure 23. In this way, when the adjusting baffle 221 swings, the front part of the pressure equalizing window 201 can be opened to a preset amplitude.

[0035] For further detailed description, as Figures 2 to 5As shown in the figure, a drive bracket 25 and a heating bracket 26 are provided inside the barrel 2. Among them, the drive bracket 25 is cylindrical, and a first partition 251 is provided inside it, dividing the inner cavity into two first installation cavities for installing the heating device 24; the heating bracket 26 is also cylindrical, and a second partition 261 is provided inside it, dividing the inner cavity into two second installation cavities for installing the drive device 21. The first installation cavity is connected to the second installation cavity, jointly constituting a part of the air flow channel 200. The pressure equalizing window 201 is opened on the second partition 261, and the first partition 251 and the second partition 261 jointly form the above-mentioned partition structure 23, and the shaft groove 231 is opened on the first partition 251.

[0036] In order to make the adjusting baffle 221 swing within a preset range, this embodiment provides two implementation methods:

[0037] Solution 1: As Figures 2 to 4 shown, blocking portions 252 for blocking the swing of the adjusting baffle 221 are provided on both sides of the shaft groove 231 of the drive bracket 25 to limit its swing range;

[0038] Solution 2: As Figure 2 and Figure 4 shown, a magnetic attracting member 253 is provided on the heating bracket 26 on the front side of the adjusting baffle 221. The adjusting baffle 221 is made of magnetizable metal, so that it can automatically reset to the middle position without external force.

[0039] Preferably, as Figure 2 shown, a heating device 24 for heating the air flow is further provided in the air flow channel 200 of the barrel 2. The heating device 24 generally uses an alloy resistance wire (such as Ni80Cr20) wound on a high-temperature mica sheet insulating skeleton to form a spiral structure, and generates heat by energization. The heating device 24 is arranged at the position corresponding to the pressure equalizing window 201, and the front end of the adjusting baffle 221 should be located in front of the front end of the heating device 24 or aligned with its front end to ensure that the opening position of the pressure equalizing window 201 is before the heating device 24. This can avoid the air flow in the air flow channel 200 entering another channel through the pressure equalizing window 201 and being reheated by the heating device 24 again, thereby preventing the phenomenon of too high air outlet temperature.

[0040] For further optimizing the design, as Figures 2 to 4 shown, the heating device 24 is arranged inside the heating bracket 26, and a temperature sensor 27 corresponding to each air flow channel 200 is provided at the front part of the heating bracket 26. A control circuit board is usually provided inside the handle 1, and by being electrically connected to the drive device 21, the heating device 24 and the temperature sensor 27, intelligent control of the start-stop and power of the heating device 24 is realized, so as to monitor and adjust the temperature at the front part of the heating bracket 26 in real time.

[0041] As a preferred structure, as Figure 2 and Figure 3 shown, the rear part of the barrel 2 is connected with an air inlet hood 28 corresponding to the air flow channel 200 one by one. An air inlet channel 280 communicating with the corresponding air flow channel 200 is arranged inside the air inlet hood 28, and the rear end thereof is the aforementioned air inlet 202. As a more preferred embodiment, a dust-proof net 281 is further arranged in the air inlet channel 280 of the air inlet hood 28 to prevent impurities such as dust from entering the hair dryer, thereby improving the cleanliness and service life of the device.

[0042] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A hair dryer structure, characterized in that: It includes a handle (1) and a barrel (2) connected thereto. At least two air flow channels (200) running through from front to back are provided in the barrel (2). A driving device (21) for driving the air flow from back to front is provided in the barrel (2) within the air flow channels (200). A pressure equalizing window (201) for communicating the two adjacent air flow channels (200) and allowing the air flow in one air flow channel (200) to enter the other air flow channel (200) is provided between the two adjacent air flow channels (200). An adjusting structure (22) capable of adjusting the opening, closing or opening amplitude of the pressure equalizing window (201) is provided in the barrel (2).

2. The hair dryer structure according to claim 1, wherein: A partition structure (23) for dividing the inner cavity of the barrel (2) into two air flow channels (200) is provided in the barrel (2). The pressure equalizing window (201) is opened on the partition structure (23) and is located in front of the driving device (21). The adjusting structure (22) includes an adjusting baffle (221). The adjusting baffle (221) is arranged at the pressure equalizing window (201) for blocking the window and is rotatably connected to the partition structure (23).

3. The hair dryer structure according to claim 2, wherein: A main shaft portion (222) is provided at the rear end of the adjusting baffle (221). An axial groove (231) for accommodating the main shaft portion (222) and allowing it to rotate is provided on the partition structure (23), so that the front part of the pressure equalizing window (201) is opened to a preset amplitude when the adjusting baffle (221) swings.

4. The hair dryer structure according to any one of claims 1 to 3, characterized in that: The barrel (2) is further provided with a heating device (24) for heating the air flow within the air flow channels (200).

5. The hair dryer structure according to claim 3, wherein: The barrel (2) is further provided with a heating device (24) for heating the air flow within the air flow channels (200). The heating device (24) is arranged at a position corresponding to the pressure equalizing window (201). And the front end of the adjusting baffle (221) is located on the front side of the front end of the heating device (24), or the front end of the adjusting baffle (221) is aligned with the front end of the heating device (24).

6. The hair dryer structure according to claim 3, wherein: A driving support (25) and a heating support (26) are provided in the barrel (2). The driving support (25) is provided with a first partition (251) for dividing its inner cavity. The heating support (26) is provided with a second partition (261) for dividing its inner cavity. The pressure equalizing window (201) is opened on the second partition (261). The first partition (251) and the second partition (261) together form the partition structure (23). The axial groove (231) is opened on the first partition (251).

7. The hair dryer structure according to claim 6, characterized in that: The barrel (2) is further provided with a heating device (24) for heating the air flow within the air flow channels (200). The heating device (24) is arranged within the heating support (26). A temperature sensor (27) corresponding to each air flow channel (200) is provided at the front part of the heating support (26).

8. The hair dryer structure according to claim 6, characterized in that: Blocking portions (252) for blocking the swing of the adjusting baffle (221) are provided on both sides of the axial groove (231) of the driving support (25), so that the adjusting baffle (221) swings within a preset amplitude.

9. The hair dryer structure according to claim 1, wherein: At the rear of the barrel (2) described above, an air intake hood (28) corresponding to the air flow channel (200) one by one is connected, and an air intake channel (280) communicating with the corresponding air flow channel (200) is provided in the air intake hood (28).

10. The hair dryer structure according to claim 9, characterized in that: The air intake hood (28) is provided with a dust-proof net (281) in the air intake channel (280).

Images