Air duct structure and fan

Abstract

The utility model belongs to the field of fans, and particularly relates to an air duct structure which is characterized by comprising a fan assembly and a fan cover. A first mounting cavity penetrating through the front end of the rear shell is formed in the rear shell, an air inlet communicating with the first mounting cavity is formed in the rear side of the rear shell, and an abutting ring is arranged on the peripheral side of the first mounting cavity in a surrounding mode; a second mounting cavity penetrating through the rear end face of the front shell is formed in the front shell, an annular abutting face is arranged on the rear end face of the front shell, an air outlet communicated with the second mounting cavity is formed in the front side of the front shell, the rear end of the front shell is clamped with the front end of the rear shell, the first mounting cavity is communicated with the second mounting cavity, and the front end of the fan assembly abuts against the annular abutting face. The rear end of the fan assembly extends into the first mounting cavity and abuts against the abutting ring. According to the air duct structure, the installation is more convenient, the production efficiency can be more effectively improved, the stability of the position of the fan assembly in the installation cavity can be ensured after the installation is completed, and the reliability of the air duct structure is better.

Description

Technical Field

[0001] This utility model belongs to the field of fans, and specifically relates to an air duct structure and a handheld fan. Background Technology

[0002] Fans are widely used as a common air circulation device in various devices and living scenarios. Whether for cooling electronic products such as computers, or for ventilation in homes and offices, fans play an important role.

[0003] Traditional fan structures typically include a rear housing, a fan assembly, and a front housing. During assembly, the rear and front housings are often connected using screws. While this connection method achieves a relatively stable assembly, it has some significant drawbacks.

[0004] In terms of production efficiency, the screw-fixing method increases the number of steps and time on the production line. Workers need to tighten each screw, which significantly reduces production efficiency and increases production costs in large-scale production. Moreover, inconsistent screw tightening force can lead to uneven tightness between the rear and front housings, affecting the overall performance and stability of the fan. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide an air duct structure that is easy to install and can effectively improve production efficiency.

[0006] In order to solve the above problems, another objective of this utility model is to provide a fan that is easy to install and can effectively improve production efficiency.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows.

[0008] A duct structure, characterized in that it comprises:

[0009] Fan components used to accelerate airflow;

[0010] The rear shell has a first mounting cavity extending through its front end, and an air inlet communicating with the first mounting cavity is provided on the rear side of the rear shell, and a retaining ring is provided around the periphery of the first mounting cavity.

[0011] The front shell has a second mounting cavity extending through its rear end face. The rear end face of the front shell has an annular abutment surface, and the front side of the front shell has an air outlet that communicates with the second mounting cavity. The rear end of the front shell and the front end of the rear shell are snapped together. The first mounting cavity and the second mounting cavity are connected. The front end of the fan assembly abuts against the annular abutment surface, and the rear end of the fan assembly extends into the first mounting cavity and abuts against the abutment ring.

[0012] A fan includes a battery and a duct structure, wherein a mounting portion is fixedly disposed on the duct structure, the battery is mounted on the mounting portion to be arranged side by side with the duct structure, and the battery is electrically connected to the fan assembly.

[0013] In this utility model, the beneficial effect is that by installing the fan assembly into the first mounting cavity of the rear shell, and then snapping the rear end of the front shell with the front end of the rear shell, the two ends of the fan assembly are supported by the annular abutment surface and abutment ring on the rear end face of the front shell, respectively, to complete the installation. That is, the design of this air duct structure not only makes installation more convenient and can more effectively improve production efficiency, but also ensures the stability of the fan assembly's position in the mounting cavity by supporting the two ends of the fan assembly through the annular abutment surface and abutment ring after installation, making the air duct structure more reliable. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the air duct structure.

[0015] Figure 2 This is a cross-sectional view of the air duct structure.

[0016] Figure 3 This is an exploded view of the first embodiment of the fan.

[0017] Figure 4 This is a structural schematic diagram of the first embodiment of the fan.

[0018] Figure 5 This is an exploded view of the first embodiment of the fan.

[0019] Figure 6 This is a structural schematic diagram of the first embodiment of the fan.

[0020] Icon labels:

[0021] 1. Air duct structure;

[0022] 11. Fan assembly;

[0023] 12. Rear housing; 121. First mounting cavity; 122. Air inlet; 123. Support ring;

[0024] 13. Front housing; 131. Second mounting cavity; 132. Air outlet; 1321. Transparent part; 133. Annular abutment surface;

[0025] 14. Display screen;

[0026] Fan Example 1:

[0027] 2. Installation Department;

[0028] 3. Outer casing; 31. Receiving cavity; 32. Battery; 33. Mounting port; 34. Control motherboard;

[0029] 4. Sheath; 41. Sheath cavity; 42. First hook; 43. Second hook.

[0030] Fan Example 2:

[0031] 5. Installation Department;

[0032] 6. Outer shell; 61. Receiving cavity; 62. Battery; 63. Mounting port; 64. Control main board; 65. Indicator light; 66. Lamp hole; 67. First hook; 68. Second hook. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] See Figure 1-2 This embodiment provides an air duct structure, including:

[0035] Fan assembly 11 for accelerating airflow;

[0036] The rear shell 12 has a first mounting cavity 121 extending through its front end, and an air inlet 122 connected to the first mounting cavity 121 is provided on the rear side of the rear shell 12, and a retaining ring 123 is provided around the first mounting cavity 121.

[0037] The front shell 13 has a second mounting cavity 131 extending through its rear end face. The rear end face of the front shell 13 has an annular abutment surface 133, and the front side of the front shell 13 has an air outlet 132 that communicates with the second mounting cavity 131. The rear end of the front shell 13 and the front end of the rear shell 12 are snapped together. The first mounting cavity 121 and the second mounting cavity 131 are connected. The front end of the fan assembly 11 abuts against the annular abutment surface 133, and the rear end of the fan assembly 11 extends into the first mounting cavity 121 and abuts against the abutment ring 123.

[0038] In this embodiment, the front end of the first mounting cavity 121 is fitted onto the rear end of the front shell 13.

[0039] In this embodiment, the air duct structure 1 further includes a display screen 14, which is fixed to the fan assembly and disposed in the second mounting cavity 131. Specifically, the display screen 14 extends into the second mounting cavity 131 to correspond to the air outlet 132, and a transparent element 1321 can also be disposed at the middle position of the air outlet 132, through which the display screen 14 can display information.

[0040] This embodiment also provides an example of the air duct structure 1 used in two fan structures.

[0041] See Figure 3-4 An embodiment of a fan is provided, the fan including a battery 32 and an air duct structure 1, the air duct structure 1 having a mounting part 2 fixedly disposed thereon; the battery 32 is mounted on the mounting part 2 and arranged parallel to the air duct structure 1, and the battery 32 is electrically connected to the fan assembly 11.

[0042] In this embodiment, the fan also includes a housing 3, on which a receiving cavity 31 is provided. The housing 3 is connected to the air duct structure 1, and the battery 32 extends into the receiving cavity 31.

[0043] In this embodiment, the outer casing 3 is provided with an installation port 33 on the left or right side, and the battery 32 is inserted into the receiving cavity 31 through the installation port 33.

[0044] Specifically, the fan also includes a control motherboard 34, which is also located in the receiving cavity 31 and can be fixed to the outer casing 3, the mounting part 2, or the battery 32.

[0045] In this embodiment, the fan also includes a protective sleeve 4, which has a protective sleeve cavity 41. The outer shell 3 and the air duct structure 1 are detachably disposed in the protective sleeve cavity 41. The protective sleeve 4 is fixedly provided with a first hook 42 for mounting on the user's waist belt or pants and a second hook 43 for clamping the user's clothes.

[0046] See Figure 5-6 A second embodiment of a fan is provided, which includes a battery 62 and an air duct structure 1. A mounting part 5 is fixedly provided on the air duct structure 1, and the battery 62 is mounted on the mounting part 5 to be arranged side by side with the air duct structure 1. The battery 62 is electrically connected to the fan assembly 11.

[0047] In this embodiment, the fan also includes a housing 6, on which a receiving cavity 61 is provided. The housing 6 is connected to the air duct structure 1, and the battery 62 extends into the receiving cavity 61.

[0048] In this embodiment, both the air duct structure 1 and the battery 62 extend into the receiving cavity 61.

[0049] In this embodiment, the bottom of the outer casing 6 is provided with an installation port 63, and the air duct structure 1 and the battery 62 are inserted into the receiving cavity 61 through the installation hole.

[0050] Specifically, the fan also includes a control motherboard 64, which is also located in the receiving cavity 61 and can be fixed to the outer casing 6, the mounting part 5, or the battery 62.

[0051] In this embodiment, the fan also includes an indicator light 65. The outer side of the housing 6 is provided with a lamp hole 66 that extends through to the receiving cavity 61. The indicator light 65 is disposed inside the receiving cavity 61 and exposed to the outside through the lamp hole 66.

[0052] In this embodiment, the outer casing 6 is fixedly provided with a first hook 67 for mounting on the user's waist belt or trousers and a second hook 68 for clamping the user's clothing.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A duct structure, characterized in that, include: Fan components used to accelerate airflow; The rear shell has a first mounting cavity extending through its front end, and an air inlet communicating with the first mounting cavity is provided on the rear side of the rear shell, and a retaining ring is provided around the periphery of the first mounting cavity. The front shell has a second mounting cavity extending through its rear end face. The rear end face of the front shell has an annular abutment surface, and the front side of the front shell has an air outlet that communicates with the second mounting cavity. The rear end of the front shell and the front end of the rear shell are snapped together. The first mounting cavity and the second mounting cavity are connected. The front end of the fan assembly abuts against the annular abutment surface, and the rear end of the fan assembly extends into the first mounting cavity and abuts against the abutment ring.

2. The air duct structure according to claim 1, characterized in that, The front end of the first mounting cavity is fitted onto the rear end of the front shell.

3. A fan comprising a battery and a duct structure as described in any one of claims 1-2, wherein a mounting portion is fixedly disposed on the duct structure, the battery is mounted on the mounting portion to be disposed side by side with the duct structure, and the battery is electrically connected to the fan assembly.

4. A fan according to claim 3, characterized in that, The fan also includes a housing with a receiving cavity, the housing being connected to the air duct structure, and the battery extending into the receiving cavity.

5. A fan according to claim 4, characterized in that, The outer casing has an installation port on the left or right side, through which the battery is inserted into the receiving cavity.

6. A fan according to claim 4, characterized in that, Both the air duct structure and the battery extend into the receiving cavity.

7. A fan according to claim 6, characterized in that, The bottom of the outer casing is provided with an installation port, and the air duct structure and battery are inserted into the receiving cavity through the installation hole.

8. A fan according to claim 4, characterized in that, The fan also includes an indicator light. A light hole is provided on the outer side of the housing, extending into the receiving cavity. The indicator light is located inside the receiving cavity and is exposed to the outside through the light hole.

9. A fan according to claim 4, characterized in that, The outer shell is fixedly provided with a first hook for mounting on the user's waist belt or trousers and a second hook for holding the user's clothes.

10. A fan according to claim 4, characterized in that, The fan also includes a protective sleeve with a sleeve cavity, and the outer shell and air duct structure are detachably installed inside the sleeve cavity; the protective sleeve is fixedly provided with a first hook for mounting on the user's waist belt or trousers and a second hook for clamping the user's clothes.

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