Waist hanging fan

Abstract

The utility model relates to a waist hanging fan which comprises a shell, a waistband and a fan assembly, and the shell is provided with an air inlet and an air outlet; two ends of the waistband are respectively connected with two ends of the shell; the fan assembly is installed in the outer shell, the fan assembly comprises an inner shell and fan blades arranged in the inner shell, the inner shell is arranged in a penetrating mode to form an airflow channel, the two ends of the airflow channel are the air outlet end and the air inlet end respectively, the air outlet end is aligned with the air outlet, and the air inlet end and the air inlet are arranged in a spaced mode; when the waist-hanging fan is placed in clothes for use, the clothes cannot be in direct contact with the air inlet end, so that the clothes are blocked by the shell and cannot easily enter the fan assembly through the air inlet end, and the situation that the waist-hanging fan is interfered in use and consequently the air outlet amount is reduced is avoided; therefore, the air outlet amount and the cooling effect of the waist-hanging fan during use are ensured.

Description

Technical Field

[0001] This utility model relates to the field of portable cooling devices, and more particularly to waist-mounted fans. Background Technology

[0002] As a wearable cooling device, waist-hanging fans typically use axial or mixed-flow fans. The fan is placed on the user's waist through a waist fixation device, and local cooling is achieved by the fan drawing air in from the bottom and expelling air from the top. The air inlet of existing waist-hanging fans is usually located at the bottom of the outer shell. When the waist-hanging fan is used inside clothing, the clothing is attracted into the fan, affecting the fan's rotation, resulting in weaker airflow and poorer cooling effect. Utility Model Content

[0003] In view of this, the present invention provides a waist-hanging fan to solve the problems of existing waist-hanging fans.

[0004] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes:

[0005] Waist-mounted fans, including:

[0006] The housing is provided with an air inlet and an air outlet;

[0007] A belt, the two ends of which are respectively connected to the two ends of the outer casing;

[0008] A fan assembly is installed inside the housing. The fan assembly includes an inner shell and fan blades disposed inside the inner shell. The inner shell is configured to form an airflow channel. The two ends of the airflow channel are an air outlet and an air inlet, respectively. The air outlet is aligned with the air outlet, and the air inlet is spaced apart from the air inlet.

[0009] In some embodiments, the housing includes opposing inner sidewalls, outer sidewalls, and a bottom wall connecting the inner sidewalls and outer sidewalls, and the air inlet is distributed in at least one of the inner sidewalls, the outer sidewalls, and the bottom wall.

[0010] In some embodiments, the air inlet includes a bottom air inlet hole distributed on the bottom wall, a first side air inlet hole distributed on the inner side wall, and a second side air inlet hole distributed on the outer side wall.

[0011] In some embodiments, an inner partition and an outer partition are further included. The inner partition is spaced apart from the inner sidewall and at least partially covers the first side air inlet. The outer partition is spaced apart from the outer sidewall and at least partially covers the second side air inlet.

[0012] In some embodiments, a gasket is attached to the side of the inner partition away from the inner sidewall, the gasket being made of a soft rubber material or a phase change material.

[0013] In some embodiments, the inner partition is provided with a plurality of first connecting posts, which are fixedly connected to the inner sidewall, and the outer partition is provided with a plurality of second connecting posts, which are fixedly connected to the outer sidewall.

[0014] In some embodiments, the fan assembly further includes a retaining buckle, the outer casing has an installation groove, the inner casing is embedded in the installation groove, and the two ends of the retaining buckle are fixedly connected to the inner wall of the outer casing, thereby pressing and fixing the inner casing in the installation groove.

[0015] In some embodiments, a soft rubber sleeve is fitted on the outer surface of the inner shell, and the fixing buckle is pressed onto the soft rubber sleeve to press and fix the inner shell in the mounting groove.

[0016] In some embodiments, the inner wall of the housing is provided with a receiving boss, the top surface of which abuts against the outer edge of the inner housing on the side having the air inlet end.

[0017] In some embodiments, the fan assembly includes a motor that drives the fan blades to rotate. The motor has a terminal block located near the air outlet. The housing has a shield and an air outlet at the air outlet. The shield blocks the terminal block, and the air outlet is arranged around the periphery of the shield.

[0018] Implementing the embodiments of this utility model will have the following beneficial effects:

[0019] By using the aforementioned waist-hanging fan, the air inlet and air outlet are spaced apart, ensuring that the air inlet of the fan assembly does not directly contact the outer casing. When the waist-hanging fan is placed inside clothing, the clothing will not directly contact the air inlet, making it difficult for the clothing to enter the fan assembly through the air inlet due to the obstruction of the outer casing. This avoids interference with the waist-hanging fan during use, which could lead to a reduction in airflow and thus ensures the airflow and cooling effect of the waist-hanging fan during use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the overall structure of one embodiment.

[0022] Figure 2 This is a schematic diagram of an exploded assembly structure according to one embodiment;

[0023] Figure 3 This is a schematic diagram of the internal structure of the outer casing in one embodiment;

[0024] Figure 4 This is a top view of the overall structure of one embodiment;

[0025] Figure 5 This is a partial structural cross-sectional view of one embodiment;

[0026] Figure 6 This is a schematic diagram showing the separation of the inner partition, outer partition, and outer shell in one embodiment;

[0027] Figure 7 This is a schematic diagram of a wind turbine assembly structure according to one embodiment;

[0028] Figure 8 This is a schematic diagram of the outer casing structure of one embodiment;

[0029] in:

[0030] 1-Outer shell; 1a-Shell; 1b-Cover plate; 10-Air inlet; 100-Bottom air inlet; 101-First side air inlet; 102-Second side air inlet; 11-Inner wall; 12-Outer wall; 13-Bottom wall; 14-Air outlet; 140-Air outlet; 141-Shielding part; 15-Mounting groove; 16-Receiving boss;

[0031] 2-Belt;

[0032] 3-Fan assembly; 30-Inner shell; 300-Airflow channel; 3001-Air inlet; 3002-Air outlet; 31-Fan blade; 32-Fixing buckle; 33-Soft rubber sleeve; 34-Motor; 340-Terminal block;

[0033] 41-Inner partition; 410-First connecting post; 411-Gasket; 42-Outer partition; 420-Second connecting post;

[0034] 5-Control component; 50-Control board; 51-Battery; 52-Control button. Detailed Implementation

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] See appendix Figure 1 -Appendix Figure 8 This utility model proposes a waist-mounted fan, which includes: a shell 1, a waist belt 2, and a fan assembly 3. The shell 1 is provided with an air inlet 10 and an air outlet 14. The two ends of the waist belt 2 are respectively connected to the two ends of the shell 1. The fan assembly 3 is installed inside the shell 1. The fan assembly 3 includes an inner shell 30 and a fan blade 31 disposed in the inner shell 30. The inner shell 30 is configured to form an airflow channel 300. The two ends of the airflow channel 300 are an air outlet 3002 and an air inlet 3001, respectively. The air outlet 3002 is aligned with the air outlet 14, and the air inlet 3001 is spaced apart from the air inlet 10.

[0039] like Figure 2 , Figure 3 and Figure 5 As shown, the inner shell 30 is fixed to the inner wall of the outer shell 1, and the end of the inner shell 30 with the air inlet 3001 is spaced apart from the side of the outer shell 1 with the air inlet 10, so that the air inlet 3001 of the fan assembly 3 will not directly contact the outer shell 1. When the waist-hanging fan is placed inside the clothing, the clothing will not directly contact the air inlet 3001, so that the clothing is blocked by the outer shell 1 and will not easily enter the interior of the fan assembly 3 through the air inlet 3001. This avoids the waist-hanging fan being disturbed during use, which would reduce the air volume, thereby ensuring the air volume and cooling effect of the waist-hanging fan during use.

[0040] Reference Figure 4 The outer casing 1 has an overall arc-shaped design to fit the waist. For easy assembly, the outer casing 1 includes a shell 1a with an opening on one side and a cover plate 1b to close the opening. The fan assembly 3 and the control assembly 5 for controlling the fan assembly 3 are installed inside the outer casing 1 through the opening and closed by the cover plate 1b, so that the internal structure is not exposed. To increase the air volume of the waist-mounted fan, the fan assembly 3 can be set as two sets, with the two sets of fan assemblies 3 symmetrically distributed at both ends of the length direction of the outer casing 1, and corresponding air outlets 14 and air inlets 10 are opened on the outer casing 1 to increase the air volume and improve the cooling effect. Figure 2 and Figure 3 As shown, the control component 5 is distributed between the two sets of fan components 3. The control component 5 specifically includes a control board 50, a battery 51, and a control button 52 exposed on the outer casing 1. The control board 50 is connected to the fan component 3 through wires to facilitate the user to control the air volume and start / stop of the fan component 3. In addition, the inner casing 30 is a circular tubular structure with two through ends. The internal fan blades 31 rotate to form an airflow channel 300, so that the airflow can be discharged through the air inlet 10, the air inlet end 3001, the airflow channel 300, the air outlet end 3002, and the air outlet 14. In some embodiments, the waist belt 2 can be two separate waist belts 2, and the two waist belts 2 are provided with a buckle that can be fastened to each other. The waist fan is stably worn on the waist of the human body through the waist belts 2 and the buckle on the waist belts 2.

[0041] Reference Figure 5 and Figure 6 The outer casing 1 includes an inner sidewall 11, an outer sidewall 12, and a bottom wall 13 connecting the inner sidewall 11 and the outer sidewall 12. Air inlets 10 are distributed in at least one of the inner sidewall 11, the outer sidewall 12, and the bottom wall 13. Specifically, the outer sidewall 12 is a cover plate 1b. The inner sidewall 11 and the bottom wall 13 are distributed on the casing 1a. After the cover plate 1b covers the opening of the casing 1a, the outer sidewall 12 and the inner sidewall 11 are arranged opposite to each other. In some embodiments, air inlets 10 can be opened on the inner sidewall 11, the outer sidewall 12, and the bottom wall 13 of the outer casing 1 to increase the area of ​​the air inlets 10, increase the air intake and exhaust volume of the fan assembly 3, and significantly improve the cooling effect of the hanging fan.

[0042] In some embodiments, the air inlet 10 includes a bottom air inlet 100 distributed on the bottom wall 13, a first side air inlet 101 distributed on the inner side wall 11, and a second side air inlet 102 distributed on the outer side wall 12. Specifically, the bottom air inlet 100, the first side air inlet 101, and the second side air inlet 102 are all arrayed through holes. The design of multiple through holes helps to ensure the air intake volume of the air inlet end 3001 and avoids excessively large openings that cause clothing to come into contact with the air inlet end 3001 through the air inlet 10, thereby reducing the probability of clothing entering the fan assembly 3.

[0043] Reference Figure 5 and Figure 6 The waist-hanging fan also includes an inner partition 41 and an outer partition 42. The inner partition 41 is spaced apart from the inner sidewall 11 and at least partially covers the first side air inlet 101. The outer partition 42 is spaced apart from the outer sidewall 12 and at least partially covers the second side air inlet 102. When the waist-hanging fan is in use, the inner sidewall 11 of the outer casing 1 is close to the waist of the user, and the outer sidewall 12 of the outer casing 1 is opposite to the inner sidewall 11, i.e., the outer sidewall 12 is away from the waist of the user. To prevent the first side air inlet 101 on the inner wall from being blocked by the waist of the user, thus preventing external airflow from reaching the air inlet end 3001 through the first side air inlet 101, inner partitions 41 are spaced apart on the inner sidewall 11, so that the inner partitions 41 and the outer sidewall 11 are spaced apart. A flow guide gap is formed between the inner sidewalls 11. During use, the inner partition 41 directly contacts the waist of the human body, and the external airflow enters the first side air inlet 101 through the flow guide gap. Correspondingly, in order to prevent clothing from blocking the second side air inlet 102, an outer partition 42 is installed at intervals on the outer sidewall 12. Another flow guide gap is formed between the outer partition 42 and the outer sidewall 12, so that the clothing is blocked by the outer partition 42 and cannot directly contact the outer sidewall 12. The external airflow enters the second side air inlet 102 through the flow guide gap. In addition, the inner sidewall 11 and the outer sidewall 12 of the outer shell 1 are both arc-shaped walls, and the inner partition 41 and the outer partition 42 are respectively set as arc-shaped plates to fit the waist of the human body and improve the comfort of wearing the waist fan.

[0044] like Figure 6As shown, the inner partition 41 is provided with a plurality of first connecting posts 410, which are fixedly connected to the inner sidewall 11. The outer partition 42 is provided with a plurality of second connecting posts 420, which are fixedly connected to the outer sidewall 12. Specifically, the plurality of first connecting posts 410 are evenly distributed at the edge of the inner partition 41, and the plurality of second connecting posts 420 are evenly distributed at the edge of the outer partition 42. The inner sidewall 11 and the outer sidewall 12 of the outer shell 1 are respectively provided with a plurality of connecting protrusions or connecting through holes for connecting the first connecting posts 410 and the second connecting posts 420, thereby improving the connection stability between the inner partition 41 and the inner sidewall 11, and between the outer partition 42 and the outer sidewall 12, and making the flow guiding gap formed by the inner partition 41 and the inner sidewall 11, and the outer partition 42 and the outer sidewall 12, multi-sided through, ensuring that the external airflow can smoothly enter the first side air inlet 101 and the second side air inlet 102.

[0045] To further improve user comfort when using the waist fan, a gasket 411 is attached to the side of the inner partition 41 away from the inner wall 11. The gasket 411 is made of soft rubber material or phase change material.

[0046] Reference Figure 2 and Figure 8 The fan assembly 3 also includes a fixing buckle 32. The outer shell 1 has an installation groove 15, and the inner shell 30 is embedded in the installation groove 15. The two ends of the fixing buckle 32 are fixedly connected to the inner wall of the outer shell 1, and press the inner shell 30 into the installation groove 15. Specifically, the installation groove 15 is designed as an arc groove corresponding to the circular tubular structure of the inner shell 30, so that when the inner shell 30 is pressed into the installation groove 15 by the fixing buckle 32, the outer wall of the inner shell 30 fits against the groove wall of the installation groove 15 to improve stability. The fixing buckle 32 is a U-shaped buckle, and the two ends of the fixing buckle 32 have through holes. The locking bolts pass through the through holes at both ends of the fixing buckle 32 and are threadedly connected to the outer shell 1.

[0047] In some embodiments, the inner wall of the outer shell 1 is provided with a receiving boss 16. The top surface of the receiving boss 16 abuts against the outer edge of the inner shell 30 with the air inlet end 3001. The receiving boss 16 is specifically opened at one end of the mounting groove 15 near the air inlet 10. By abutting against the receiving boss 16, the inner shell 30 will not move towards the air inlet 10, so as to maintain the distance between its air inlet end 3001 and the air inlet 10.

[0048] Reference Figure 7 A soft rubber sleeve 33 is fitted on the outer surface of the inner shell 30. The fixing buckle 32 is pressed into the soft rubber sleeve 33 to press and fix the inner shell 30 in the mounting groove 15. The soft rubber sleeve 33 can reduce vibration and noise. The material of the soft rubber sleeve 33 can further improve the installation stability of the fan assembly 3 inside the outer shell 1.

[0049] Reference Figure 5 and Figure 7 The fan assembly 3 includes a motor 34 that drives the fan blades 31 to rotate. The motor 34 is provided with a terminal block 340. The terminal block 340 is located near the air outlet 14. The housing 1 is provided with a shielding part 141 and an air outlet 140 at the air outlet 14. The shielding part 141 shields the terminal block 340. The air outlet 140 is arranged around the periphery of the shielding part 141. There are multiple air outlets 140, which are distributed in a circular array around the shielding part 141. The shielding part 141 can reduce the probability of the motor 34 and its terminal block 340 being splashed by external water droplets.

[0050] It should also be noted that the fan assembly 3 can be either an axial flow fan or a mixed flow fan. The axial flow fan mainly uses axial air delivery and has the characteristics of large air volume, low pressure and low noise. The mixed flow fan mainly uses axial and radial mixed air delivery, which can simultaneously take into account air volume and pressure and has high air delivery efficiency. In actual production, it can be selected according to the requirements.

[0051] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A waist-mounted fan, characterized in that, include: The outer casing (1) is provided with an air inlet (10) and an air outlet (14); A belt (2), the two ends of which are respectively connected to the two ends of the outer shell (1); A fan assembly (3) is installed inside the outer casing (1). The fan assembly (3) includes an inner casing (30) and a fan blade (31) disposed inside the inner casing (30). The inner casing (30) is configured to form an airflow channel (300). The two ends of the airflow channel (300) are an air outlet (3002) and an air inlet (3001), respectively. The air outlet (3002) is aligned with the air outlet (14), and the air inlet (3001) is spaced apart from the air inlet (10).

2. The waist-mounted fan according to claim 1, characterized in that, The outer casing (1) includes opposing inner sidewalls (11), outer sidewalls (12) and a bottom wall (13) connecting the inner sidewalls (11) and the outer sidewalls (12), and the air inlet (10) is distributed in at least one of the inner sidewalls (11), the outer sidewalls (12) and the bottom wall (13).

3. The waist-mounted fan according to claim 2, characterized in that, The air inlet (10) includes a bottom air inlet (100) distributed on the bottom wall (13), a first side air inlet (101) distributed on the inner side wall (11), and a second side air inlet (102) distributed on the outer side wall (12).

4. The waist-mounted fan according to claim 3, characterized in that, It also includes an inner partition (41) and an outer partition (42), wherein the inner partition (41) is spaced apart from the inner sidewall (11) and the inner partition (41) at least partially covers the first side air inlet (101), and the outer partition (42) is spaced apart from the outer sidewall (12) and the outer partition (42) at least partially covers the second side air inlet (102).

5. The waist-mounted fan according to claim 4, characterized in that, A gasket (411) is attached to the side of the inner partition (41) away from the inner sidewall (11), and the gasket (411) is made of soft rubber material or phase change material.

6. The waist-mounted fan according to claim 4, characterized in that, The inner partition (41) is provided with a plurality of first connecting posts (410), which are fixedly connected to the inner sidewall (11). The outer partition (42) is provided with a plurality of second connecting posts (420), which are fixedly connected to the outer sidewall (12).

7. The waist-mounted fan according to claim 1, characterized in that, The fan assembly (3) also includes a fixing buckle (32). The outer shell (1) is provided with an installation groove (15). The inner shell (30) is embedded in the installation groove (15). The two ends of the fixing buckle (32) are fixedly connected to the inner wall of the outer shell (1) and press the inner shell (30) into the installation groove (15).

8. The waist-mounted fan according to claim 7, characterized in that, The outer surface of the inner shell (30) is fitted with a soft rubber sleeve (33), and the fixing buckle (32) is pressed onto the soft rubber sleeve (33) to press and fix the inner shell (30) in the mounting groove (15).

9. The waist-mounted fan according to claim 1, characterized in that, The inner wall of the outer shell (1) is provided with a receiving boss (16), and the top surface of the receiving boss (16) abuts against the outer edge of the inner shell (30) on the side with the air inlet end (3001).

10. The waist-mounted fan according to claim 1, characterized in that, The fan assembly (3) includes a motor (34) that drives the fan blades (31) to rotate. The motor (34) is provided with a terminal block (340). The terminal block (340) is located near the air outlet (14). The housing (1) is provided with a shielding part (141) and an air outlet (140) at the air outlet (14). The shielding part (141) shields the terminal block (340). The air outlet (140) is arranged around the periphery of the shielding part (141).

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