A neck hanging fan with a centrifugal wind wheel

Abstract

The utility model discloses a neck-hanging fan with a centrifugal wind wheel, relating to the technical field of neck-hanging fans, comprising a fan casing, wherein a hanging part, an installation cavity, a motor, a centrifugal wind wheel, an air inlet, an air outlet and an air inlet protection part are arranged on the fan casing, an air hole corresponding to the air inlet is opened on the air inlet protection part, and the part with the air hole is arranged in a net shape; a magnetic suction part is installed on the fan casing, and a magnetically attracted part corresponding to the magnetic suction part is installed on the air inlet protection part, and when the air inlet protection part cover is arranged on the air inlet, the magnetic suction effect of the magnetic suction part on the magnetically attracted part enables the air inlet protection part to be magnetically connected to the fan casing; when the air inlet protection part needs to be removed from the fan casing, a pulling force greater than the magnetic suction force is applied to the air inlet protection part to pull it down, so that the air inlet protection part can be conveniently disassembled from the fan casing; the user can more conveniently clean the inside of the installation cavity through the open air inlet.

Description

Technical Field

[0001] The utility model relates to the technical field of neck-hanging fans, in particular to a neck-hanging fan with a centrifugal wind wheel. Background Art

[0002] A neck hanging fan is a fan that can be hung on the user's neck or clamped on the collar of the user's neck. It can blow air to the user's head in scenes such as user exercise and queuing, effectively freeing the user's hands while eliminating the stuffiness for the user. Its structure is similar to the Chinese utility model "A neck hanging fan with a centrifugal wind wheel" with announcement number CN220452237U, including: a shell, formed with an air inlet and an air outlet, the air inlet and the air outlet are both connected to the inside of the shell; a fan assembly, accommodated in the shell, the fan assembly includes a fan blade and a motor driving the fan blade to rotate, the fan blade includes a central part located in the center, a plate part arranged radially outside the central part, and a plurality of blades extending axially from a first side of the plate part, and the plurality of blades are arranged radially outside the central part at intervals; wherein the plate part is penetrated to form a ventilation part, and wind can enter between the blades from the second side of the plate part through the ventilation part.

[0003] Although there are currently blocking nets for protecting each air outlet, hair or other debris smaller than the mesh holes can still enter the shell through the air outlet, easily getting entangled or causing abnormal noise. It is currently inconvenient to clean the debris that enters the shell, and the entire shell needs to be disassembled for cleaning. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a neck-hanging fan with a centrifugal wind wheel, comprising a fan housing, a hanging part is arranged on the fan housing, an installation cavity is formed in the fan housing, a motor and a centrifugal wind wheel driven by the motor are arranged in the installation cavity; an air inlet corresponding to the air inlet side of the centrifugal wind wheel is arranged on the fan housing, and an air outlet corresponding to the centrifugal air outlet side of the centrifugal wind wheel is arranged on the fan housing; an air inlet protection member which can be covered on the air inlet is arranged on the fan housing, an air hole corresponding to the air inlet is opened on the air inlet protection member, and the part with the air hole is arranged in a net shape; a magnetic attraction member is installed on the fan housing, and a magnetically attracted member corresponding to the magnetic attraction member is installed on the air inlet protection member.

[0006] As a further solution of the utility model: a positioning convex ring is formed on the outer side of the fan housing, and the positioning convex ring is located on the outer periphery of the air inlet; a coupling ring is provided on the air inlet protection member, and an annular positioning groove corresponding to the positioning convex ring is formed on the side of the coupling ring corresponding to the fan housing.

[0007] As a further solution of the utility model: the magnetic attraction member is installed on the positioning convex ring, and the magnetically attracted member is installed on the annular positioning groove.

[0008] As a further solution of the utility model: at least the magnetic attraction member or the magnetically attracted member is arranged in a ring shape.

[0009] As a further solution of the utility model: a rotation gap is formed between the positioning protruding ring and the side wall of the annular positioning groove.

[0010] As a further solution of the utility model: a protective baffle corresponding to the air hole is installed on the outer side surface of the air inlet protection piece, and an air inlet space is formed between the protective baffle and the outer side surface of the air inlet protection piece. The air inlet space has a lateral air inlet formed by the protective baffle and the outer side surface of the air inlet protection piece.

[0011] As a further solution of the utility model: the protective baffle is detachably connected to the air inlet protection member.

[0012] As a further solution of the utility model: a screw hole column is formed on one side of the protective baffle corresponding to the air hole, and a corresponding connecting hole is penetrated through the air inlet protection piece, and a connecting screw is configured. The connecting screw passes through the corresponding connecting hole and is screwed to the corresponding screw hole column.

[0013] As a further solution of the utility model: the outer side surface of the coupling ring is inclined toward the air hole to form an air guiding slope corresponding to the lateral air inlet, so that the air intake is smoother.

[0014] As a further solution of the utility model: the hanging piece includes a collar clip installed on a side of the fan housing away from the air inlet.

[0015] Compared with the prior art, the beneficial effects of the present technical solution are as follows: when the air inlet protection member cover is arranged on the air inlet, the air inlet protection member can be magnetically connected to the fan housing through the magnetic attraction of the magnetic member on the magnetically attracted member; when the air inlet protection member needs to be removed from the fan housing, a pulling force greater than the magnetic attraction force is applied to the air inlet protection member to pull it off, thereby completing the convenient removal of the air inlet protection member from the fan housing; the user can more conveniently clean the inside of the installation cavity through the open air inlet.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural stereogram of the utility model;

[0019] Figure 2 It is a structural sectional view of the utility model;

[0020] Figure 3 It is a structural explosion diagram of the utility model.

[0021] The corresponding reference numerals in the accompanying drawings are described as follows:

[0022] Fan housing-1, installation cavity-2, motor-3, centrifugal fan wheel-4, air inlet-5, air outlet-6, air inlet protection part-7, air hole-8, positioning protruding ring-9, coupling ring-10, annular positioning groove-11, magnetic part-12, magnetic part-13, protection baffle-14, air inlet space-15, lateral air inlet-16, screw hole column-17, connecting hole-18, air guide slope-19, collar clip-20. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 A neck hanging fan with a centrifugal wind wheel comprises a fan housing 1, a mounting cavity 2 is formed in the fan housing 1, a motor 3 and a centrifugal wind wheel 4 are mounted in the mounting cavity 2, and the centrifugal wind wheel 4 is driven by the motor 3.

[0025] The fan housing 1 is provided with an air inlet 5 corresponding to the air inlet side of the centrifugal wind wheel 4, and the fan housing 1 is provided with an air outlet 6 corresponding to the centrifugal wind outlet side of the centrifugal wind wheel 4. The motor 3 drives the centrifugal wind wheel 4 to fan, so that the wind enters the installation cavity 2 from the air inlet and then blows out from the air outlet 6.

[0026] The fan housing 1 is detachably provided with an air inlet protection member 7. The air inlet protection member 7 is provided in a cover shape and can be correspondingly covered on the air inlet 5.

[0027] A plurality of air holes 8 are provided in the middle of the air inlet protection member 7 , so that a blocking net-shaped arrangement is formed in the middle thereof to prevent some objects from entering the installation cavity 2 .

[0028] A positioning convex ring 9 is formed on the outer side of the fan housing 1 and is located on the outer periphery of the air inlet 5. Figure 3 As shown, the air inlet 5 is arranged in a circular shape as a whole.

[0029] An engagement ring 10 is formed on the edge of the air inlet protection member 7 in a direction away from the air inlet where the air inlet protection member cover is arranged. An annular positioning groove 11 corresponding to the positioning protruding ring 9 is formed on the side of the engagement ring 10 corresponding to the fan housing.

[0030] When the air inlet protection member 7 is covered on the air inlet 5 , the annular positioning groove 11 can be correspondingly engaged with the positioning protruding ring 9 , that is, the positioning protruding ring 9 enters the annular positioning groove 11 , so that the air inlet protection member 7 is positioned on the air inlet 5 as a positioning cover.

[0031] There may be a certain gap between the positioning protrusion 9 and the side wall of the annular positioning groove 11, so that the air inlet protection member 7 with the annular positioning groove can rotate with the positioning protrusion 9 as the rotation axis, for example, to adjust the display angle of the pattern on the outer side surface of the air inlet protection member (not shown).

[0032] A magnetic member 12 is installed on the positioning protruding ring 9, and a magnetically attracted member 13 corresponding to the magnetic member 12 is installed on the annular positioning groove 11, so that when the positioning cover of the air inlet protection member 7 is arranged on the air inlet 5, the magnetic attraction of the magnetic member 12 on the magnetically attracted member 13 can enable the air inlet protection member 7 to be magnetically connected to the fan housing 1.

[0033] When it is necessary to remove the air inlet protection member 7 from the fan housing 1, a pulling force greater than the "magnetic attraction of the magnetic member 12 on the magnetically attracted member 13" is applied to the air inlet protection member 7, and the air inlet protection member 7 is pulled off from the positioning protruding ring 9 in a direction away from the air inlet protection member 7 covering the air inlet 5 (i.e., in a direction opposite to the covering direction), thereby completing the convenient removal of the air inlet protection member 7 from the fan housing 1. The user can more conveniently clean the interior of the installation cavity 2 through the open air inlet 5.

[0034] In some embodiments, the magnetic element is an annular magnetic strip or multiple arc-shaped magnetic strips, which can be installed on the positioning convex ring or on a part of the arc-shaped portion of the positioning convex ring. In other embodiments, the magnetic element can also be a cylindrical magnetic element, a block magnetic element, or a magnetic element of other shapes.

[0035] The magnetically attracted part may also have magnetic attraction ability, for example, the magnetically attracted part is a magnet, which can be magnetically attracted together with the magnetically attracted part. The magnetically attracted part may also not have magnetic attraction ability itself, for example, an iron block, etc., which can be magnetically attracted by the above-mentioned magnetic attraction.

[0036] In some embodiments, the air inlet protection member 7 having an annular positioning groove can rotate with the positioning convex ring 9 as the rotating axis, and at least the magnetic attraction member 12 or the magnetically attracted member 13 is arranged in a ring shape. When the air inlet protection member 7 rotates, the magnetic attraction member 12 can always magnetically attract the magnetically attracted member 13, ensuring that the air inlet protection member 7 can still be magnetically connected to the fan housing 1 when it rotates.

[0037] The air inlet protection member 7 is covered on the air inlet 5 to form an inner side surface of the air inlet protection member corresponding to the installation cavity 2 and an outer side surface of the air inlet protection member corresponding to the outside.

[0038] A protective baffle 14 is installed on the outer side of the middle part of the air inlet protection member 7, and the protective baffle 14 prevents objects from directly passing through the air holes 8. When viewed from the external front of the protective baffle 14, the protective baffle 14 can block all the air holes 8.

[0039] The protective baffle 14 is parallel or substantially parallel to the outer side surface of the middle part of the air inlet protection piece 7, and the protective baffle 14 and the outer side surface of the middle part of the air inlet protection piece 7 are spaced apart to form an air inlet space 15, and the air inlet space 15 has a lateral air inlet 16 formed by blocking the protective baffle 14 and the outer side surface of the middle part of the air inlet protection piece 7.

[0040] The protective baffle 14 changes the air intake route, where the air enters the air intake space 15 from the lateral air inlet 16 , and then passes through the air holes 8 and the air inlet 5 in sequence from the air intake space 15 to reach the installation cavity 2 .

[0041] The protective baffle 14 is detachably connected to the air inlet protection member 7. A plurality of screw hole columns 17 are formed on one side of the protective baffle 14 corresponding to the air hole, and corresponding connection holes 18 are penetrated one by one on the middle of the air inlet protection member 7. Corresponding connection screws (not shown) are passed through the corresponding connection holes 18 and then screwed to the corresponding screw hole columns 17, so that the protective baffle 14 with the screw hole columns is connected to the air inlet protection member 7.

[0042] The screw hole column 17 is used for connection on one hand, and on the other hand, its length is set to limit the spacing distance between the protective baffle 14 and the outer side surface of the middle part of the air inlet protection member 7.

[0043] Preferably, the outer side surface of the coupling ring 10 is inclined toward the air hole 8 to form an air guiding slope 19 corresponding to the lateral air inlet 16, so that the air intake is smoother.

[0044] The fan housing 1 is provided with a hanging member. The hanging member includes a collar clip 20 mounted on the fan housing 1 on a side away from the air inlet, and can be correspondingly clamped on the collar of the user's neck through the collar clip 20. In some embodiments, the hanging member also includes a hanging connection portion, which can be connected to an external hanging rope or neck hanging bracket through the hanging connection portion, so as to hang the fan housing on the user's neck.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A neck hanging fan with a centrifugal wind wheel, characterized in that: The fan housing comprises a fan casing, a hanging part is arranged on the fan casing, an installation cavity is formed in the fan casing, a motor and a centrifugal wind wheel driven by the motor are arranged in the installation cavity; an air inlet corresponding to the air inlet side of the centrifugal wind wheel is arranged on the fan casing, and an air outlet corresponding to the centrifugal wind outlet side of the centrifugal wind wheel is arranged on the fan casing; an air inlet protection member which can be covered on the air inlet is arranged on the fan casing, an air hole corresponding to the air inlet is opened on the air inlet protection member, and the part with the air hole is arranged in a net shape; a magnetic attraction member is installed on the fan casing, and a magnetically attracted member corresponding to the magnetic attraction member is installed on the air inlet protection member.

2. The neck hanging fan according to claim 1, characterized in that: A positioning convex ring is formed on the outer side of the fan housing, and the positioning convex ring is located on the outer periphery of the air inlet; The air inlet protection piece is provided with a coupling ring, and a side of the coupling ring corresponding to the fan housing is formed with an annular positioning groove corresponding to the positioning convex ring.

3. The neck hanging fan according to claim 2, characterized in that: The magnetic attraction member is installed on the positioning convex ring, and the magnetically attracted member is installed on the annular positioning groove.

4. The neck hanging fan according to claim 3, characterized in that: At least the magnetic attraction member or the magnetically attracted member is arranged in a ring shape.

5. The neck hanging fan according to any one of claims 2 to 4, characterized in that: A rotation gap is formed between the positioning protruding ring and the side wall of the annular positioning groove.

6. The neck hanging fan according to any one of claims 1 to 4, characterized in that: A protective baffle corresponding to the air hole is installed on the outer side of the air inlet protection piece, and an air inlet space is formed between the protective baffle and the outer side of the air inlet protection piece. The air inlet space has a lateral air inlet formed by the protective baffle and the outer side of the air inlet protection piece.

7. The neck hanging fan according to claim 6, characterized in that: The protective baffle is detachably connected to the air inlet protection piece.

8. The neck hanging fan according to claim 7, characterized in that: A screw hole column is formed on one side of the protective baffle corresponding to the air hole, and a corresponding connecting hole is penetrated on the air inlet protection piece, and a connecting screw is arranged. The connecting screw passes through the corresponding connecting hole and is screwed to the corresponding screw hole column.

9. The neck hanging fan according to claim 6, characterized in that: The outer side surface of the coupling ring is inclined toward the air hole to form an air guiding slope corresponding to the lateral air inlet, so that the air intake is smoother.

10. The neck hanging fan according to claim 1 or 2 or 3 or 4 or 7 or 8 or 9, characterized in that: The hanging piece comprises a collar clip which is installed on a side of the fan housing away from the air inlet.

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