Air inlet structure and blower

Abstract

The utility model discloses an air inlet structure, which comprises an end cover, an air inlet, an air outlet and an air outlet, the tail cover is connected with the other side of the end cover, and an air inlet hole unit is arranged on the tail cover; one end of the shell is located in the end cover, the other end of the shell extends into the tail cover, the shell is provided with a ventilation flow channel, and the two ends of the ventilation flow channel communicate with the outer air outlet and the air inlet hole unit correspondingly; the filter screen is limited in the gap between the tail cover and the shell, airflow can sequentially and smoothly penetrate through the air inlet hole unit and the filter screen and then enter the ventilation flow channel, the cleanliness of inlet air is guaranteed, the air inlet hole unit and the filter screen are each of a semi-surrounding structure, the position for cable power connection is reserved in the structural design, and the air inlet hole unit and the filter screen are not prone to falling off. Therefore, obstruction of a cable power connection structure to air inlet is avoided, the overall weight of the hair drier is light, a user can hold the hair drier for a long time conveniently, and the use experience of the user is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, and in particular to an air inlet structure. Background Technology

[0002] Hair dryers are a common household appliance in modern life, mainly used to dry hair or heat and dry objects. They use a built-in motor to drive the fan blades to rotate, generating a high-speed airflow, and use heating elements (such as heating wires) to heat the airflow, thereby achieving the functions of drying or styling.

[0003] Traditional hair dryers have an air intake area that surrounds the handle, while the handle also serves as a power supply for the external cable. The cable connection structure occupies the air intake channel, which can negatively affect the smoothness of air intake. Furthermore, the large-diameter air intake area makes it difficult to ensure the cleanliness of the incoming air. Utility Model Content

[0004] The purpose of this utility model is to provide an air inlet structure and a hair dryer to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems:

[0006] An air inlet structure, comprising:

[0007] End cap, with an air vent on one side;

[0008] The tail cap is connected to the other side of the end cap, and the tail cap is provided with an air inlet unit;

[0009] The housing has one end located inside the end cap and the other end extending into the tail cap. The housing has a ventilation channel, the two ends of which are respectively connected to an outlet air vent and an inlet air vent unit.

[0010] The filter screen is positioned within the gap between the tail cap and the housing so that airflow passes sequentially through the air inlet unit and the filter screen before entering the ventilation channel.

[0011] As a further embodiment of this utility model, the housing includes an upper shell and a lower shell for enclosing and forming a ventilation channel. The area of ​​the upper shell covered by the filter screen is provided with a mesh support. The area of ​​the lower shell corresponding to the mesh support is provided with a mesh plate support. The end of the lower shell away from the mesh plate support is provided with an internal air outlet corresponding to the external air outlet.

[0012] As a further embodiment of this utility model, both the end cap and the tail cap have curved surfaces on the same side.

[0013] As a further embodiment of this utility model, the two ends of the filter screen are bent from one side of the air inlet unit to the side of the ventilation channel.

[0014] As a further embodiment of this utility model, the mesh support is provided with a plurality of first ventilation grooves arranged in an array, and the mesh plate support is provided with a plurality of second ventilation grooves arranged in an array.

[0015] As a further embodiment of this invention, the ventilation area of ​​the first ventilation groove is larger than the ventilation area of ​​the second ventilation groove.

[0016] As a further embodiment of this utility model, a first receiving position is provided on the lower shell and on the outer wall of the mesh plate support, and the first receiving position is adapted to the end position of the filter screen and is set as a planar structure.

[0017] As a further embodiment of this utility model, a second receiving position is provided on the lower shell and located on the periphery of the mesh support, and the second receiving position is adapted to the middle position of the filter screen to be configured as a bent structure.

[0018] As a further embodiment of this utility model, one end of the end cap has an opening, the edge of which is provided with a concave ring, and the end of the tail cap is provided with a corresponding convex edge corresponding to the concave ring.

[0019] In addition, this utility model also provides a hair dryer, including the aforementioned air inlet structure.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The air inlet structure and hair dryer of this utility model allow airflow to pass smoothly through the air inlet unit and the filter screen in sequence before entering the ventilation channel, ensuring the cleanliness of the incoming air. Moreover, both the air inlet unit and the filter screen are semi-enclosed structures, and the structural design reserves a position for cable power connection, thereby avoiding the obstruction of airflow by the cable power connection structure. The overall weight of the hair dryer is light, making it easy for users to hold and use for a long time, effectively improving the user experience, especially reducing hand fatigue when drying hair or styling hair for a long time. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a structural diagram of an air inlet structure and a hair dryer according to the present invention.

[0023] Figure 2 This utility model discloses a structural breakdown of an air inlet structure and a hair dryer. Figure 1 ;

[0024] Figure 3 This utility model discloses a structural breakdown of an air inlet structure and a hair dryer. Figure 2 ;

[0025] Figure 4 This utility model relates to an air inlet structure and a hair dryer. Figure 2 Enlarged view of the structure at point A in the image.

[0026] The components represented by each number in the attached diagram are listed below: 1. End cap; 11. Outlet vent; 12. Recessed ring; 2. Tail cap; 21. Inlet unit; 22. Protruding edge; 3. Housing; 31. Upper shell; 311. Mesh support; 3111. First vent groove; 312. Column hole; 32. Lower shell; 321. Mesh support; 322. Inner outlet; 323. Column; 324. Enclosure; 325. Internally threaded column; 3211. Second vent groove; 3212. Protrusion; 33. First receiving position; 34. Second receiving position; 4. Filter screen; 41. Assembly hole unit. Detailed Implementation

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Please see Figure 1-4This utility model provides an air inlet structure, including an end cap 1, a tail cap 2, a housing 3, and a filter screen 4. The end cap 1 has an outlet air vent 11 on one side. The air vent is an important opening on the end cap 1, used to discharge the airflow after it has been filtered by the filter screen 4 and guided by the ventilation channel to the blower. The design of the outlet air vent 11 is usually optimized according to the usage requirements. For example, it can be designed as a circle, rectangle, or other shapes to adapt to different blowing needs. In addition, the outlet air vent 11 can also be equipped with air guide vanes or other structures to further optimize the direction and distribution of airflow. The tail cap 2 is connected to the other side of the end cap 1. The tail cap 2 is provided with an air inlet unit 21. The semi-enclosed air inlet unit 21 allows air to enter the blower from multiple directions, improving air intake efficiency. Compared with the traditional annular air inlet, the semi-enclosed structure not only optimizes the airflow entry path but also reduces interference from cables or other components to the electrical structure. One end of the housing 3 is located inside the end cap 1, and the other end of the housing 3 extends into the tail cap 2. The housing 3 has a ventilation channel, the two ends of which are connected to the outlet 11 and the air inlet unit 21, respectively. The ventilation channel inside the housing 3 is the core channel for airflow, guiding the air drawn in by the air inlet unit 21 to the outlet 11. The outlet 11 ensures smooth airflow throughout the process, reducing energy loss. The filter 4 is confined within the gap between the tail cap 2 and the housing 3, allowing airflow to pass sequentially through the air inlet unit 21 and the filter 4 before entering the ventilation channel. The filter 4 is confined within the gap between the tail cap 2 and the housing 3, ensuring that airflow can pass sequentially through the air inlet unit 21 and the filter 4. The filter 4 can finely filter the air, preventing dust, hair, and other impurities from entering the hair dryer, thereby protecting the internal components of the hair dryer (such as the fan and heating wire), extending the service life of the hair dryer. Through the filtration of the filter 4, the air entering the ventilation channel is cleaner, avoiding airflow obstruction or increased noise caused by impurities entering.

[0029] Furthermore, the housing 3 includes an upper housing 31 and a lower housing 32 for enclosing and forming a ventilation channel. The area of ​​the upper housing 31 covered by the filter screen 4 is provided with a mesh support 311. The area of ​​the lower housing 32 corresponding to the mesh support 311 is provided with a mesh plate support 321. The end of the lower housing 32 away from the mesh plate support 321 is provided with an inner air outlet 322 corresponding to the outer air outlet 11.

[0030] Specifically, the mesh support 311 and the mesh plate support 321 together form a semi-enclosed hollow structure, which helps to evenly distribute airflow, reduce turbulence, and provide support for the filter 4.

[0031] Specifically, the internal air outlet 322 is aligned with the external air outlet 11, allowing airflow to pass through, thereby allowing the airflow to pass sequentially through the air inlet unit 21, the filter 4, the ventilation channel and the external air outlet 11.

[0032] Furthermore, both the end cap 1 and the tail cap 2 have curved surfaces on the same side;

[0033] Specifically, the curved structure makes the overall appearance of the hair dryer smoother and more beautiful, enhancing the product's design and user experience. At the same time, it makes it easier for users to hold the hair dryer and operate it comfortably and naturally.

[0034] Furthermore, both ends of the filter screen 4 are bent from one side of the air inlet unit 21 toward the ventilation channel side;

[0035] Specifically, the bend can increase the contact area between the filter 4 and the airflow, improve the filtration effect, and better block dust, hair and other impurities from entering the hair dryer. At the same time, the bend design of the filter 4 reserves space for the cable connection structure, avoiding mutual interference between the cable connection structure and the air intake path, and ensuring smooth air intake.

[0036] Furthermore, the lower shell 32 and the upper shell 31 are screwed together as a single structure. The lower shell 32 is provided with a plurality of cylindrical tubes 323 with internal threads on its edge, and the upper shell 31 is provided with cylindrical holes 312 that are directly opposite to each cylindrical tube 323.

[0037] Specifically, the design of the column 323 and the column hole 312 enables the upper shell 31 and the lower shell 32 to be precisely aligned during assembly, ensuring that the ventilation channels and other components inside the shell 3 can be correctly installed and positioned.

[0038] Furthermore, the mesh support 311 is provided with a plurality of first ventilation slots 3111 arranged in an array;

[0039] Specifically, multiple first ventilation slots 3111 arranged in an array on the grid support 311 are used to guide airflow through, and the first ventilation slots 3111 ensure that air can enter the ventilation channel evenly.

[0040] Optionally, the first venting groove 3111 is designed in a circular, strip, rectangular or triangular shape.

[0041] Furthermore, the mesh plate support 321 is provided with a plurality of second ventilation grooves 3211 arranged in an array, and some adjacent second ventilation grooves 3211 and located on the mesh plate support 321 are provided with protrusions 3212.

[0042] Specifically, multiple second ventilation slots 3211 arranged in an array on the mesh plate support 321 are used to guide airflow through, and the second ventilation slots 3211 ensure that air can enter the ventilation channel evenly.

[0043] Optionally, the second venting groove 3211 is designed in a circular, strip, rectangular or triangular shape.

[0044] Furthermore, the ventilation area of ​​the first ventilation groove 3111 is larger than the ventilation area of ​​the second ventilation groove 3211.

[0045] Specifically, the larger first vent groove 3111 can reduce the resistance of airflow when entering the ventilation channel, allowing the airflow to pass through the filter screen 4 more smoothly, thereby improving the filtration efficiency and achieving the effect of central main air intake and side auxiliary air intake.

[0046] Furthermore, a first receiving position 33 is provided on the lower shell 32 and on the outer wall of the mesh plate support 321, and the first receiving position 33 is adapted to the end position of the filter screen 4 and is set as a planar structure.

[0047] Specifically, the first receiving position 33 provides a clear installation and limiting position for the end of the filter screen 4. This design ensures that the filter screen 4 will not shift or shake after assembly.

[0048] Specifically, the first receiving position 33 is a planar structure, which allows the two ends of the filter screen 4 to fit tightly against it, facilitating the precise positioning of the filter screen 4;

[0049] Specifically, after passing through the air inlet unit 21, the airflow can smoothly enter the ventilation channel through the filter screen 4, reducing airflow turbulence or energy loss caused by the non-fixed position of the filter screen 4.

[0050] Furthermore, a second receiving position 34 is provided on the lower shell 32 and located on the periphery of the mesh support 311. The second receiving position 34 is adapted to be a bent structure in the middle of the filter screen 4.

[0051] Specifically, the function of the second receiving position 34 is to ensure that the filter screen 4 can be stably fixed inside the housing 3 after assembly, so as to ensure that the airflow can pass through the filter screen 4 evenly and achieve the function of cleaning and filtration.

[0052] Specifically, the second receiving position 34 has an arc-shaped structure, which can be adapted to the middle bending structure of the filter screen 4, and plays the role of quick positioning and supporting the filter screen 4.

[0053] Furthermore, both ends of the filter screen 4 are detachably connected to the lower shell 32. The lower shell 32 is provided with a baffle 324 located inside the mesh plate support 321. The baffle 324 is provided with an internally threaded post 325 with internal threads. The internally threaded post 325 passes through the mesh plate support 321. The two ends of the filter screen 4 are provided with assembly hole units 41 corresponding to the internally threaded post 325 and the protrusion 3212.

[0054] Specifically, the internal threaded post 325 and the protrusion 3212 are both located in the first receiving position 33s row. The assembly hole unit 41 includes a first assembly hole and a second assembly hole. When installing the filter screen 4, the filter screen 4 is slightly bent to deform it, making its opening angle larger, until the internal threaded post 325 and the protrusion 3212 are respectively aligned with the corresponding first assembly hole and second assembly hole. The external force acting on the filter screen 4 is removed, and the filter screen 4 automatically resets under its own elastic force. The protrusion 3212 can then be embedded in the corresponding second assembly hole, which can initially position the filter screen 4. Then, the screw is turned through the first assembly hole and into the internal threaded post 325, which can install the filter screen 4 and the lower shell 32 into an integrated structure. The enclosure 324 is located inside the mesh plate support 321, providing additional support for the mesh plate support 321 and enhancing the overall structural strength of the lower shell 32. The filter screen 4 is fully positioned by the cooperation between the internal threaded post 325 and the first assembly hole of the filter screen 4.

[0055] Furthermore, one end of the end cap 1 has an opening, and the edge of the opening is provided with a concave ring 12. The end of the tail cap 2 is provided with a corresponding convex edge 22 corresponding to the concave ring 12.

[0056] Specifically, the fit between the convex edge 22 and the concave ring 12 enables a tight assembly between the end cap 1 and the tail cap 2, which helps to enhance the integrity and sealing of the two structures. It is worth noting that the end cap 1 and the tail cap 2 can be separated left and right along the axial direction, and the upper shell 31 and the lower shell 32 can be separated up and down. After the shell 3 composed of the upper shell 31 and the lower shell 32 is embedded into the end cap 1 and the tail cap 2, the structural strength of the end cap 1 and the tail cap 2 can be used to clamp the shell 3, ensuring the integrity and sealing of the shell 3.

[0057] In addition, this utility model also provides a hair dryer, including the aforementioned air inlet structure.

Claims

1. An air inlet structure, characterized by, The utility model relates to an air inlet structure of a fan, which comprises: an end cover (1) having an air outlet (11) on one side thereof; a tail cover (2) connected to the other side of the end cover (1), the tail cover (2) being provided with an air inlet unit (21); a housing (3) having one end located in the end cover (1) and the other end extending into the tail cover (2), wherein the housing (3) has a ventilation flow channel, both ends of the ventilation flow channel being connected to the air outlet (11) and the air inlet unit (21) respectively; a filter screen (4) being located in the gap between the tail cover (2) and the housing (3) so that the airflow passes through the air inlet unit (21) and the filter screen (4) in sequence and then enters the ventilation flow channel.

2. An air inlet structure according to claim 1, wherein: The housing (3) comprises an upper housing (31) and a lower housing (32) for enclosing the ventilation flow channel, the area of the upper housing (31) covered by the filter screen (4) being provided with a mesh support (311), the area of the lower housing (32) corresponding to the mesh support (311) being provided with a mesh plate support (321), and the end of the lower housing (32) away from the mesh plate support (321) being provided with an inner air outlet (322) corresponding to the air outlet (11).

3. An air inlet structure according to claim 1, wherein: The same side of the end cover (1) and the tail cover (2) is a curved surface structure.

4. An air inlet structure according to claim 1, wherein: Both ends of the filter screen (4) are bent from one side of the air inlet unit (21) to one side of the ventilation flow channel.

5. An air inlet structure according to claim 2, wherein: A plurality of first air permeation grooves (3111) are arranged in an array on the mesh support (311), and a plurality of second air permeation grooves (3211) are arranged in an array on the mesh plate support (321).

6. An air inlet structure according to claim 5, wherein: The ventilation area of the first air permeation groove (3111) is greater than that of the second air permeation groove (3211).

7. An air inlet structure according to claim 2, wherein: A first accommodating position (33) is arranged on the outer wall of the lower housing (32) and located at the mesh plate support (321), and the end position of the filter screen (4) is adapted to be arranged as a flat structure.

8. An air inlet structure according to claim 2, wherein: A second accommodating position (34) is arranged on the outer wall of the lower housing (32) and located at the mesh support (311), and the middle position of the filter screen (4) is adapted to be arranged as a bent structure.

9. An air inlet structure according to claim 1, wherein: One end of the end cover (1) has an open mouth, the edge of the open mouth is provided with a concave ring (12), and the tail cover (2) is provided with a corresponding convex edge (22) at the end corresponding to the concave ring (12).

10. A hair dryer characterized by The utility model relates to an air inlet structure of a fan, which comprises: an end cover (1) having an air outlet (11) on one side thereof; a tail cover (2) connected to the other side of the end cover (1), the tail cover (2) being provided with an air inlet unit (21); a housing (3) having one end located in the end cover (1) and the other end extending into the tail cover (2), wherein the housing (3) has a ventilation flow channel, both ends of the ventilation flow channel being connected to the air outlet (11) and the air inlet unit (21) respectively; a filter screen (4) being located in the gap between the tail cover (2) and the housing (3) so that the airflow passes through the air inlet unit (21) and the filter screen (4) in sequence and then enters the ventilation flow channel. The housing (3) comprises an upper housing (31) and a lower housing (32) for enclosing the ventilation flow channel, the area of the upper housing (31) covered by the filter screen (4) being provided with a mesh support (311), the area of the lower housing (32) corresponding to the mesh support (311) being provided with a mesh plate support (321), and the end of the lower housing (32) away from the mesh plate support (321) being provided with an inner air outlet (322) corresponding to the air outlet (11). The same side of the end cover (1) and the tail cover (2) is a curved surface structure. Both ends of the filter screen (4) are bent from one side of the air inlet unit (21) to one side of the ventilation flow channel. A plurality of first air permeation grooves (3111) are arranged in an array on the mesh support (311), and a plurality of second air permeation grooves (3211) are arranged in an array on the mesh plate support (321). The ventilation area of the first air permeation groove (3111) is greater than that of the second air permeation groove (3211). A first accommodating position (33) is arranged on the outer wall of the lower housing (32) and located at the mesh plate support (321), and the end position of the filter screen (4) is adapted to be arranged as a flat structure. A second accommodating position (34) is arranged on the outer wall of the lower housing (32) and located at the mesh support (311), and the middle position of the filter screen (4) is adapted to be arranged as a bent structure. One end of the end cover (1) has an open mouth, the edge of the open mouth is provided with a concave ring (12), and the tail cover (2) is provided with a corresponding convex edge (22) at the end corresponding to the concave ring (12). The utility model relates to an air inlet structure of a fan, which comprises: an end cover (1) having an air outlet (11) on one side thereof; a tail cover (2) connected to the other side of the end cover (1), the tail cover (2) being provided with an air inlet unit (21); a housing (3) having one end located in the end cover (1) and the other end extending into the tail cover (2), wherein the housing (3) has a ventilation flow channel, both ends of the ventilation flow channel being connected to the air outlet (11) and the air inlet unit (21) respectively; a filter screen (4) being located in the gap between the tail cover (2) and the housing (3) so that the airflow passes through the air inlet unit (21) and the filter screen (4) in sequence and then enters the ventilation flow channel. The housing (3) comprises an upper housing (31) and a lower housing (32) for enclosing the ventilation flow channel, the area of the upper housing (31) covered by the filter screen (4) being provided with a mesh support (311), the area of the lower housing (32) corresponding to the mesh support (311) being provided with a mesh plate support (321), and the end of the lower housing (32) away from the mesh plate support (321) being provided with an inner air outlet (322) corresponding to the air outlet (11).

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