A hair dryer end cover and a hair dryer

Abstract

The utility model discloses a hair dryer end cover and hair dryer, wherein, this hair dryer end cover includes, outer end cover, be equipped with a plurality of first through -hole on the outer end cover, the one side of outer end cover forms and holds the groove, a plurality of first through -hole all with the first through -hole of holding the groove, inner end cover, install in the holding groove, form a plurality of second through -hole on the inner end cover, the second through -hole with first through -hole intercommunication, form the air outlet hole, the hole depth of air outlet hole is not less than 2 millimeter, the one side of outer end cover with holding the groove is equipped with the connecting portion. The utility model can reduce the noise of hair dryer under the condition that guaranteeing that hair dryer size does not increase greatly.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, specifically to a hair dryer end cap and a hair dryer. Background Technology

[0002] In existing technologies, high-speed fans are typically used to enable hair dryers to generate a large airflow. However, as the airflow increases, the noise level of the hair dryer also increases.

[0003] In existing technologies, to reduce the noise of hair dryers, noise-reducing components are typically installed on the inner wall of the hair dryer body, and sound-absorbing or sound-insulating materials are added to the inner wall of the hair dryer body. For example, patent CN222982617U adds a conical inner shell to the hair dryer body to achieve noise reduction. This method inevitably increases the overall size of the hair dryer.

[0004] How to reduce the noise of a hair dryer without significantly increasing its size is one of the most important problems that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to provide a hair dryer end cap and hair dryer to overcome the shortcomings of the prior art. It can reduce the noise of the hair dryer without significantly increasing the size of the hair dryer.

[0006] This utility model discloses a hair dryer end cap, wherein: it includes,

[0007] An outer end cap is provided with a plurality of first through holes; a receiving groove is formed on one side of the outer end cap; and the plurality of first through holes are all connected to the receiving groove.

[0008] An inner end cap is installed in the receiving groove. The inner end cap has a plurality of second through holes, which communicate with the first through holes to form an air outlet. The depth of the air outlet is not less than 2 mm.

[0009] The outer end cap has a connecting part on one side of the receiving groove.

[0010] In the hair dryer end cap described above, optionally, the number of the second through holes is equal to the number of the first through holes, and they correspond one-to-one;

[0011] A barrier is formed between the first through hole and the corresponding second through hole, and the wall portion of the barrier is integrally formed with the wall of the first through hole or the second through hole.

[0012] The hair dryer end cap as described above, wherein, optionally, the enclosure includes a first enclosure and a second enclosure;

[0013] The first enclosure is located on the side of the outer end cover that has the receiving groove, and the wall portion of the first enclosure is integrally formed with the wall of the first through hole;

[0014] The second enclosure is located on one side of the inner end cover, and the wall portion of the second enclosure is integrally formed with the wall of the second through hole;

[0015] The first and second enclosures cooperate with each other to surround the corresponding first and second through holes.

[0016] In the hair dryer end cap described above, optionally, the inner end cap is provided with a first limiting portion for restricting the first enclosure.

[0017] In the hair dryer end cap described above, the outer end cap and the inner end cap may optionally be snap-fitted, welded, or integrally formed.

[0018] In the hair dryer end cap described above, optionally, the plurality of air outlets are arranged in a circumferential array; and the air outlets are oblong.

[0019] In the hair dryer end cap described above, optionally, the second through hole has a chamfered structure on the side facing away from the enclosure.

[0020] In the hair dryer end cap described above, optionally: the connecting part is annular, and the end of the connecting part away from the outer end cap is provided with several notches, and the notches are provided with claws for engaging with the hair dryer body.

[0021] In the hair dryer end cap as described above, optionally: the claws are provided with locking holes; a protruding ring is provided on the outer periphery of the connecting portion, and two reinforcing ribs are provided between the protruding ring and each claw, with the locking holes located between the two reinforcing ribs. This disclosure proposes a hair dryer, comprising a hair dryer body and the hair dryer end cap as described above;

[0022] The outer end cap has one side with the receiving groove connected to the air outlet end of the hair dryer body.

[0023] Compared with the prior art, this utility model adds an outer end cap and an inner end cap at the outlet of the hair dryer. Since the outer end cap has a first through hole and the inner end cap has a second through hole, the first through hole and the second through hole cooperate to form an air outlet. The depth of the air outlet is not less than 2 mm. When the airflow driven by the high-speed fan flows to the air outlet in a spiral manner, the airflow will be shaped by the air outlet to flow out in a manner that is basically parallel to the air outlet, thereby reducing noise. Attached Figure Description

[0024] Figure 1This is a perspective view of the hair dryer end cap proposed in this utility model;

[0025] Figure 2 This is a perspective view of the hair dryer end cap proposed in this utility model.

[0026] Figure 3 This is a perspective view of the outer end cap proposed in this utility model;

[0027] Figure 4 This is a perspective view of the inner end cap proposed in this utility model;

[0028] Figure 5 This is a perspective view of the inner end cap proposed in this utility model from another angle.

[0029] Figure 6 This is a three-dimensional sectional view of the hair dryer end cap proposed in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Outer end cap, 2-Inner end cap, 3-Air outlet, 4-First cavity, 5-Second cavity;

[0032] 11-First through hole, 12-Receiving groove, 13-Connecting part;

[0033] 131-Protruding ring, 132-Second limiting part, 133-Positioning groove, 134-Notch, 135-Claw, 136-Claw hole, 137-Reinforcing rib;

[0034] 1351 - Snap-in hole, 1352 - Reinforcing rib;

[0035] 21-Second through hole, 22-Enclosure, 23-First limiting part, 24-Protruding structure;

[0036] 221 - First fence, 222 - Second fence. Detailed Implementation

[0037] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] To address the problems mentioned in the background art, one reason for noise generation is that the airflow driven by the fan flows out intermittently with a certain degree of rotation. This periodic fluctuation in airflow causes noise to form and propagate. To solve this problem, the present invention proposes the following embodiments.

[0039] Example 1

[0040] Please refer to Figures 1 to 6This embodiment proposes a hair dryer end cap, including an outer end cap 1 and an inner end cap 2. The outer end cap 1 is used to connect with the hair dryer body so as to be installed downstream of the blower and to provide support for the inner end cap 2. On the other hand, it cooperates with the inner end cap 2 so that the depth of the formed air outlet 3 is not less than 2 mm.

[0041] The outer end cover 1 has multiple first through holes 11; a receiving groove 12 is formed on one side of the outer end cover 1; all the multiple first through holes 11 communicate with the receiving groove 12. In specific implementation, the depth direction of the first through holes 11 should be parallel to the axis of the fan. In practical applications, the number of first through holes 11 can be 8 to 24. The main function of the receiving groove 12 is to facilitate the installation of the inner end cover 2.

[0042] The inner end cap 2 is installed within the receiving groove 12. Specifically, the inner end cap 2 and the outer end cap 1 can be fixedly connected, snap-fitted, or integrally formed; this embodiment is not limited to this. The inner end cap 2 has multiple second through holes 21, which communicate with the first through holes 11 to form an air outlet 3; the depth of the air outlet 3 is not less than 2 mm. In specific implementations, the number of second through holes 21 and first through holes 11 are equal and correspond one-to-one. After the inner end cap 2 and outer end cap 1 are installed, the first through holes 11 and the corresponding second through holes 21 cooperate to form the corresponding air outlet 3. That is, the second through holes 21 and the corresponding first through holes 11 should have the same size to form an air outlet 3 with a relatively smooth inner wall.

[0043] In practical applications, in a preferred implementation, all air outlets 3 can be of the same size. However, in other implementations, the sizes of different air outlets 3 can be different, and this invention is not limited to this.

[0044] The outer end cap 1 has a connecting part 13 on one side of the receiving groove 12. The function of the connecting part 13 is to connect the outer end cap 1 to the blower body.

[0045] When in use, when the air is driven forward by the high-speed fan to the air outlet 3, the air can be rectified under the action of the air outlet 3. After passing through the air outlet 3, the airflow can flow forward in a manner that is basically parallel to the air outlet 3, which helps to reduce airflow noise.

[0046] In practical applications, hair dryers typically have a hot air blowing function, and metal has high thermal conductivity. Using metal to make the end cap of the hair dryer could easily burn the user, posing a safety hazard. Using plastic parts makes it difficult to achieve the required depth for the air outlet 3. In this embodiment, to ensure the required depth of the air outlet 3, a barrier 22 is formed between the first through hole 11 and the corresponding second through hole 21. The wall of the barrier 22 is integrally formed with the wall of the first through hole 11 or the second through hole 21, so that each of the first through holes 11 and its corresponding second through hole 21 forms the air outlet 3. That is, by adding the barrier 22, the depth of the air outlet 3 can be increased, improving the noise reduction effect.

[0047] Specifically, to facilitate the processing of the enclosure 22, the enclosure 22 includes a first enclosure 221 and a second enclosure 222; that is, the enclosure 22 is made into a split structure, and the first enclosure 221 and the second enclosure 222 are assembled to form the enclosure 22, which ultimately forms the air outlet 3 together with the walls of the first through hole 11 and the second through hole 21. In this way, the depth of the enclosure 22 can be avoided, which facilitates manufacturing. Specifically, the first enclosure 221 is located on the side of the outer end cover 1 with the receiving groove 12, and the wall portion of the first enclosure 221 is integrally formed with the wall of the first through hole 11. The second enclosure 222 is located on one side of the inner end cover 2, and the wall portion of the second enclosure 222 is integrally formed with the wall of the second through hole 21. The first enclosure 221 and the second enclosure 222 cooperate with each other, surrounding the corresponding first through hole 11 and second through hole 21.

[0048] In practical implementation, to ensure the sealing between the first enclosure 221 and the second enclosure 222, the inner end cover 2 is provided with a first limiting part 23 for restricting the first enclosure 221. Specifically, the first enclosure 221 and the second enclosure 222 are closely fitted together. By setting the first limiting part, the first enclosure 221 can be accurately fitted to the first limiting part, and a sealing structure is formed between the first enclosure 221 and the second enclosure 222, preventing gaps from forming on the wall surface of the air outlet 3.

[0049] In some implementations, multiple first enclosures 221 are connected in sequence and cooperate with the outer end cover 1 and the inner end cover 2 to form a first cavity 4. Since the first enclosure 221 and the second enclosure 222 are sealed together, airflow can be prevented from entering the first cavity 4. The presence of the first cavity 4 helps to reduce the weight of the entire structure.

[0050] In specific implementation, the second enclosure 222 is distributed in a ring shape, and multiple second enclosures 222 are sequentially connected to form a circular groove; the circular groove cooperates with the outer end cover 1 to form a second cavity 5. The existence of the second cavity 5 is to reduce the overall weight. Multiple air outlets 3 are distributed in a circumferential array; and the air outlets 3 are waist-shaped holes. Specifically, the length direction of the air outlets 3 is set along the radial direction of the blower end cover.

[0051] In practical implementation, to ensure smooth airflow into the air outlet 3, the second through hole 21 has a chamfered structure on the side facing away from the enclosure 22. Specifically, this chamfered structure is an arc-shaped chamfer. Furthermore, to facilitate backflow and avoid the formation of a large negative pressure area in the central region, the inner end cover 2 has a raised structure 24 in the middle of the side facing away from the enclosure 22, and the surface of the raised structure 24 is partially spherical; the second through holes 21 are evenly distributed around the raised structure.

[0052] In practical implementation, to facilitate the connection between the outer end cap 1 and the hair dryer body, the connecting part 13 is annular. The end of the connecting part 13 away from the outer end cap 1 has several notches 134, and each notch 134 contains a locking claw 135 for engaging with the hair dryer body. In actual applications, there are multiple locking claws 135, and these claws 135 are arranged in a circumferential array along the circumference of the outer end cap 1. In a preferred embodiment, there are three locking claws 135.

[0053] Specifically, to ensure the secure installation of the outer end cover 1, the claw 135 is provided with a locking hole 1351; a protruding ring 131 is provided on the outer periphery of the connecting part 13, and two reinforcing ribs 1352 are provided between the protruding ring 131 and each claw 135, with the locking hole 1351 located between the two reinforcing ribs 1352. In a specific implementation, a guide is provided on the inner side of the free end of the claw to facilitate the locking of the claw 135.

[0054] In practical applications, to ensure a tight connection between the outer end cap 1 and the blower body, a second limiting part 132 is provided on the inner wall of the connecting part 13. Specifically, the second limiting part 132 is an annular stepped surface provided on the inner wall of the connecting part.

[0055] In practical applications, the connecting part 13 is provided with a positioning groove 133. By providing the positioning groove 133, when the outer end cover 1 is connected to the blower body, the claw 135 can be aligned with the locking block on the blower body, and the locking block can be locked in the locking hole 1351.

[0056] Example 2

[0057] This embodiment is a specific application of embodiment 1. The similarities will not be repeated. Only the differences will be explained below.

[0058] This embodiment proposes a hair dryer, including a hair dryer body and a hair dryer end cap as described in Embodiment 1; the side of the outer end cap having the receiving groove (12) is connected to the air outlet end of the hair dryer body. Specifically, the hair dryer end cap is connected to the air outlet end of the hair dryer body. Of course, in some application scenarios, other components can be added to the hair dryer end cap, that is, the hair dryer end cap is not necessarily at the very end of the hair dryer.

[0059] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A hair dryer end cap, characterized in that: include, An outer end cap (1) is provided with a plurality of first through holes (11); a receiving groove (12) is formed on one side of the outer end cap (1); the plurality of first through holes (11) are all connected to the receiving groove (12); An inner end cap (2) is installed in the receiving groove (12). A plurality of second through holes (21) are formed on the inner end cap (2). The second through holes (21) communicate with the first through hole (11) to form an air outlet (3). The depth of the air outlet (3) is not less than 2 mm. The outer end cap (1) has a connecting part (13) on one side of the receiving groove (12).

2. The hair dryer end cap according to claim 1, characterized in that: The number of the second through holes (21) is equal to the number of the first through holes (11), and they correspond one-to-one; A barrier (22) is formed between the first through hole (11) and the corresponding second through hole (21), and the wall portion of the barrier (22) is integrally formed with the wall of the first through hole (11) or the second through hole (21).

3. The hair dryer end cap according to claim 2, characterized in that: The enclosure (22) includes a first enclosure (221) and a second enclosure (222); The first enclosure (221) is located on the side of the outer end cover (1) having the receiving groove (12), and the wall portion of the first enclosure (221) is integrally formed with the wall of the first through hole (11); The second enclosure (222) is located on one side of the inner end cover (2), and the wall portion of the second enclosure (222) is integrally formed with the wall of the second through hole (21); The first enclosure (221) and the second enclosure (222) cooperate with each other to surround the corresponding first through hole (11) and second through hole (21).

4. The hair dryer end cap according to claim 3, characterized in that: The inner end cap (2) is provided with a first limiting part (23) for limiting the first enclosure (221).

5. The hair dryer end cap according to claim 1, characterized in that: The outer end cap (1) and the inner end cap (2) are snapped together, welded together, or integrally formed.

6. The hair dryer end cap according to claim 2, characterized in that: The multiple air outlets (3) are arranged in a circular array; and the air outlets (3) are waist-shaped holes.

7. The hair dryer end cap according to claim 2, characterized in that: The second through hole (21) has a chamfered structure on the side opposite to the enclosure (22).

8. The hair dryer end cap according to any one of claims 1-7, characterized in that: The connecting part (13) is annular, and a plurality of notches (134) are provided at one end of the connecting part (13) away from the outer end cap (1). The notches (134) are provided with claws (135) for engaging with the blower body.

9. The hair dryer end cap according to claim 8, characterized in that: The claw (135) is provided with a locking hole (1351); the outer periphery of the connecting part (13) is provided with a protruding ring (131), and two reinforcing ribs (1352) are provided between the protruding ring (131) and each claw (135), and the locking hole (1351) is located between the two reinforcing ribs (1352).

10. A hair dryer, characterized in that: Includes the hair dryer body and the hair dryer end cap as described in any one of claims 1-9; The outer end cap has one side of the receiving groove (12) connected to the air outlet end of the hair dryer body.

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