Shell structure and neck-hanging fan

Abstract

The embodiment of the utility model relates to the technical field of fans, and particularly discloses a shell structure and a neck-hanging fan, the shell structure comprises a first shell part, a second shell part and a connecting part, in the extension direction of the first shell part, the first shell part is provided with a first end and a second end; in the extending direction of the second shell part, the second shell part is provided with a third end and a fourth end; one end of the connecting part is arranged at the second end or close to the second end, and the other end is arranged at the fourth end or close to the fourth end; wherein the second end is provided with a first air hole in the extending direction of the first shell part, and / or the fourth end is provided with a second air hole in the extending direction of the second shell part. By means of the mode, the first air hole and the second air hole can be formed in the second end and the fourth end, so that air can enter the end of the neck-hanging fan, namely the air inlet direction is parallel to the air suction direction of the fan, and wind power loss caused by turning when airflow flows to the fan from the air inlet is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and in particular to a shell structure and a neck-hanging fan. Background Art

[0002] With the continuous development of technology and the continuous improvement of living standards, various small household appliances have penetrated into people's lives. When the weather is hot, people like to use cooling equipment when traveling. Neck fans are convenient to carry. They do not need to be held in hand when used. They only need to be hung around the neck to bring air volume to people and achieve the purpose of cooling.

[0003] However, in the process of implementing the utility model, the inventor of the present utility model found that the current hanging neck fan only has an air inlet on the side wall of the shell, and the power source of the hanging neck fan - the fan is usually arranged inside the shell, and the air is sucked in through the air inlet and discharged from the air outlet, and the airflow direction of the air inlet is basically perpendicular to the air intake direction of the fan, resulting in a large loss of wind power. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide a shell structure, which can be provided with an air inlet on the end wall of the shell.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a shell structure, including a first shell portion, a second shell portion and a connecting portion, in the extension direction of the first shell portion, the first shell portion has a first end and a second end; in the extension direction of the second shell portion, the second shell portion has a third end and a fourth end; one end of the connecting portion is arranged at the second end or close to the second end, and the other end is arranged at the fourth end or close to the fourth end; wherein, the first shell portion and the second shell portion are arc-shaped as a whole, the first shell portion and the second shell portion enclose a receiving space to accommodate the neck, the second end is provided with a first air hole in the extension direction of the first shell portion, and / or the fourth end is provided with a second air hole in the extension direction of the second shell portion.

[0006] Optionally, a third air hole is provided on a side of the first shell portion away from the accommodating space and close to the second end; and / or a fourth air hole is provided on a side of the second shell portion away from the accommodating space and close to the fourth end.

[0007] Optionally, the connecting portion includes: a first rotating member, which is disposed in the first shell portion and is disposed at the second end or near the second end; and a second rotating member, which is rotatably connected to the first rotating member, which is disposed in the second shell portion and is disposed at the fourth end or near the fourth end.

[0008] Optionally, the first rotating member and the second rotating member are connected in a damped rotation manner.

[0009] Optionally, the first rotating member includes a first rotating part and a first fixed part, the first fixed part is fixed on the first shell part, the second rotating member includes a second rotating part and a second fixed part, the second fixed part is fixed to the second shell part, and the connecting part also includes a damping member and a rotating shaft, and the rotating shaft is inserted into the first rotating part, the second rotating part and the damping member.

[0010] Optionally, the shell structure also includes: a first baffle cover, which is fixed to the first shell portion and at least partially located on the outside of the first rotating member to at least partially cover the first rotating member; and a second baffle cover, which is fixed to the second shell portion and at least partially located on the outside of the second rotating member to at least partially cover the second rotating member.

[0011] Optionally, the angle between at least part of the end surface of the second end and the extension direction of the first shell portion is not equal to 90°; and / or the angle between at least part of the end surface of the fourth end and the extension direction of the second shell portion is not equal to 90°.

[0012] Optionally, in a width direction of the first shell portion and the second shell portion, the connecting portion is disposed close to the accommodating space.

[0013] According to another aspect of an embodiment of the present application, a neck-hanging fan is provided, comprising the above-mentioned shell structure, a power supply and a fan, wherein the power supply is arranged in the first shell portion and / or the second shell portion; the fan is arranged in the first shell portion and / or the second shell portion.

[0014] Optionally, both the first shell portion and the second shell portion are provided with a wire passing hole, in the first shell portion, the wire passing hole is provided at the second end or close to the second end, and in the second shell portion, the wire passing hole is provided at the fourth end or close to the fourth end.

[0015] The beneficial effect of the embodiment of the utility model is: different from the prior art, the embodiment of the utility model sets the first air hole and the second air hole at the second end and the fourth end, so that the neck hanging fan can take in air at the end, that is, the air intake direction is parallel to the suction direction of the fan, thereby reducing the wind loss caused by the turning of the air flow when flowing from the air inlet to the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of the housing structure of an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the section along AA;

[0019] Figure 3 yes Figure 2 A magnified view of part B in FIG.

[0020] Figure 4 It is an exploded schematic diagram of the connection part of an embodiment of the utility model;

[0021] Figure 5 is an overall schematic diagram of a neck hanging fan according to another embodiment of the present application;

[0022] Figure 6 yes Figure 5 Schematic diagram of the section along CC;

[0023] Figure 7 yes Figure 6 Enlarged view of part D in .

[0024] Description of the drawings: 1. Shell structure; 110. Accommodation space; 120. First shell portion; 130. Second shell portion; 140. Connecting portion; 150. First stop cover; 160. Second stop cover; 111. Opening; 120a. First end; 120b. Second end; 121. First air hole; 122. Fan cavity; 123. Third air hole; 124. Fifth air hole; 130a. Third end; 130b. Fourth end; 131. Second air hole; 132. fourth air hole; 133. sixth air hole; 141. first rotating member; 142. second rotating member; 143. rotating shaft; 144. damping member; 140a. shaft hole; 140b. through hole; 141a. first rotating part; 141b. first fixed part; 142a. second rotating part; 142b. second fixed part; 143a. mounting groove; 2. neck hanging fan; shell structure; 10. power supply; 20. fan; 11. air inlet chamber. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0027] See also Figures 1 to 3 The embodiment of the present application provides a shell structure 1, including a first shell part 120, a second shell part 130 and a connecting part 140. In the extension direction of the first shell part 120, the first shell part 120 has a first end 120a and a second end 120b. In the extension direction of the second shell part 130, the second shell part 130 has a third end 130a and a fourth end 130b, and the connecting part 140 connects the second end 120b and the fourth end 130b respectively. Among them, the first shell part 120 and the second shell part 130 are enclosed to form a receiving space 110 to accommodate the neck, and the second end 120b is provided with a first air hole 121 in the extension direction of the first shell part 120, and the fourth end 130b is provided with a second air hole 131 in the extension direction of the second shell part 130. It should be noted that in some embodiments of the present application, only the first shell part 120 may be provided with the first air hole 121, or only the second shell part 130 may be provided with the second air hole 131.

[0028] For the first shell 120 and the second shell 130, please refer to Figures 1 to 3The first shell 120 and the second shell 130 are of mirror-symmetrical structure as a whole. The first shell 120 and the second shell 130 are bent into a "C" shape as a whole. The first shell 120 and the second shell 130 are enclosed together to form a receiving space 110 to accommodate the neck. The first end 120a and the third end 130a are located at the opening 111 of the receiving space 110. The user can adjust the connection angle between the first shell 120 and the second shell 130 by applying external force, thereby adjusting the size of the receiving space 110 and the opening 111, so as to facilitate the user to wear and remove. The connecting portion 140 is respectively connected to the second end 120b and the fourth end 130b, thereby realizing the connection between the first shell 120 and the second shell 130. The second end 120b is provided with a first air hole 121 in the extension direction of the first shell 120, and the fourth end 130b is provided with a second air hole 131 in the extension direction of the second shell 130. The first air hole 121 and the second air hole 131 are both cylindrical, and the number of the first air hole 121 and the second air hole 131 is multiple, and the multiple first air holes 121 and the multiple second air holes 131 are respectively and evenly arranged at the second end 120b and the fourth end 130b. It should be understood that in the embodiment of the present application, in order to reduce the size of the shell structure 1 in the width direction of the first shell 120 and the second shell 130, the connecting portion 140 connects the second end 120b and the fourth end 130b respectively, and in other embodiments of the present application, the connecting portion 140 can be provided at one end at the second end 120b or near the second end 120b, and the other end can be provided at the fourth end 130b or near the fourth end 130b. It should be noted that, in the embodiment of the present application, the extending direction of the first shell portion 120 and the second shell portion 130 is the length direction of the arc profile, and the width direction refers to Figure 1 The direction perpendicular to the length direction.

[0029] The first shell 120 and the second shell 130 are both provided with a fan cavity 122, and the fan cavity 122 is arranged near the second end 120b and the fourth end 130b, so as to be close to the first air hole 121 and the second air hole 131, which can reduce the loss of wind force. It should be noted that the first shell 120 and the second shell 130 are both arc-shaped as a whole, which does not limit the first shell 120 and the second shell 130 to have an arc-shaped appearance, but the two ends of the first shell 120 and the second shell 130 in the extension direction are gathered in one direction as a whole, and in this embodiment, as Figure 1As shown, the parts of the first shell 120 and the second shell 130 where the fan cavity 122 is provided are in a straight line shape, but the first shell 120 and the second shell 130 are bent as a whole into a "C" shape, that is, the first shell 120 and the second shell 130 are in an arc shape. It should also be noted that the present application does not limit the specific position of the fan cavity 122 on the first shell 120 and the second shell 130. In the embodiment provided in the present application, the fan cavity 122 is arranged near the second end 120b and the fourth end 130b to increase the wind force. In other embodiments of the present application, taking the first shell 120 as an example, the fan cavity 122 can be arranged away from the second end 120b, such as the fan cavity 122 can be arranged in the middle of the first shell 120 in the extension direction, or the fan cavity 122 can be arranged at the first end 120a. The structure of the second shell 130 is similar to that of the first shell 120, and will not be repeated here.

[0030] For the above-mentioned connection part 140, please refer to Figure 3 and Figure 4The connecting portion 140 includes a first rotating member 141 and a second rotating member 142 that are rotatably connected. The first rotating member 141 is disposed on the first shell 120 and is disposed on the second end 120b. The second rotating member 142 is disposed on the second shell 130 and is disposed on the fourth end 130b. Specifically, the first rotating member 141 includes a first rotating portion 141a and a first fixed portion 141b, the first fixed portion 141b is fixed to the first shell 120, the second rotating member 142 includes a second rotating portion 142a and a second fixed portion 142b, the second fixed portion 142b is fixed to the second shell 130, the first rotating portion 141a and the second rotating portion 142a are rotatably connected, the first rotating member 141 and the second rotating member 142 are the same in size and shape, the first fixed portion 141b and the second fixed portion 142b are flat plate structures with through holes 140b, screws are passed through the through holes 140b and are screwed to the first shell 120 and the second shell 130, thereby realizing the fixation of the first fixed portion 141b and the second fixed portion 142b on the first shell 120 and the second shell 130 respectively. The first rotating part 141a and the second rotating part 142a are formed by bending a plate-like structure extending from one side of the first fixed part 141b and the second fixed part 142b, respectively, and have a structure of an axis hole 140a. The connecting part 140 also includes a rotating shaft 143, which is inserted into the first rotating part 141a and the second rotating part 142a to achieve a rotational connection between the first rotating member 141 and the second rotating member 142. In other embodiments of the present application, the connecting part 140 can also be provided in the form of a flexible connecting shaft, one end of the flexible connecting shaft is fixed at or near the second end 120b, and the other end is fixed at or near the fourth end 130b. When the two sides of the flexible connecting shaft are respectively connected to the second end 120b and the fourth end 130b, the connecting surface of at least one connecting end of the flexible connecting shaft is smaller than the end surface of the second end 120b or the fourth end 130b.

[0031] It should be understood that the present application does not limit the specific fixing method of the first fixing portion 141b and the second fixing portion 142b on the first shell 120 and the second shell 130. In other embodiments of the present application, the first fixing portion 141b and the second fixing portion 142b can be fixed to the first shell 120 and the second shell 130 by setting a snap connection or riveting or other methods. On the other hand, in the embodiment of the present application, in order to reduce the number of parts and the production cost, the first rotating member 141 and the second rotating member 142 are designed to be the same in size and shape, that is, the first rotating portion 141a and the second rotating portion 142a are both structures with an axial hole 140a, but the present application does not limit this. In other embodiments of the present application, the first rotating portion 141a and the second rotating portion 142a can be a structure with a shaft hole and a shaft, and the shaft is inserted into the shaft hole to achieve a rotational connection between the first rotating portion 141a and the second rotating portion 142a.

[0032] It should be noted that in the embodiment of the present application, in order to simplify the structure of the first shell 120 and reduce the production difficulty and cost of the first shell 120, the first rotating member 141 and the first shell 120 are designed as separate parts, and then fixedly assembled through installation, but the present application is not limited to this. In other embodiments of the present application, the first rotating member 141 and the first shell 120 can be designed as an integral whole, thereby reducing the number of parts and assembly steps. The relationship between the second rotating member 142 and the second shell 130 is similar to the above and will not be repeated here.

[0033] Preferably, in order to further increase the air volume, the first shell 120 is provided with a third air hole 123 on the side away from the accommodating space 110 and near the second end 120b, and the second shell 130 is provided with a fourth air hole 132 on the side away from the accommodating space 110 and near the fourth end 130b, that is, the end faces and side faces of the second end 120b and the fourth end 130b are provided with air holes, so that the second end 120b and the fourth end 130b can simultaneously realize gas flow from the parallel direction and the angle direction of the air intake direction of the fan 20 to provide air volume. The third air hole 123 and the fourth air hole 132 are both cylindrical, and the number of the third air hole 123 and the fourth air hole 132 is multiple, and the multiple third air holes 123 and the multiple fourth air holes 132 are evenly arranged in the first shell 120 and the second shell 130, respectively. It should be noted that, in some embodiments of the present application, only the first shell portion 120 may be provided with the third air hole 123 , or only the second shell portion 130 may be provided with the fourth air hole 132 .

[0034] Preferably, the connecting portion 140 further includes a damping member 144, which is an annular damping sheet with a notch, and there are two damping members 144. The rotating shaft 143 is sequentially inserted into the damping member 144, the first rotating portion 141a, the second rotating portion 142a, and the damping member 144. Specifically, the rotating shaft 143 is provided with mounting grooves 143a near both ends, and the damping member 144 is embedded and installed in the mounting grooves 143a through the notch. It should be noted that the present application does not limit the shape and number of the damping member 144. For example, in some embodiments of the present application, only one damping member 144 may be directly provided on the first rotating portion 141a and the second rotating portion 142a, or the damping member 144 may be a ring-shaped cylinder with thickness, and the damping member 144 is radially arranged between the rotating shaft 143 and the first rotating portion 141a to realize the damping rotation connection between the first rotating portion 141a and the second rotating portion 142a. When the user adjusts the size of the opening 111, the first shell portion 120 and the second shell portion 130 can maintain a relative angle, which saves effort in operation, and can be adjusted when the user wears it on the neck, so that the first shell portion 120 and the second shell portion 130 fit the user's neck and the first shell portion 120 and the second shell portion 130 will not squeeze the neck, thereby improving the user experience.

[0035] Preferably, the housing structure 1 further comprises a first blocking cover 150 and a second blocking cover 160. The first blocking cover 150 is fixed to the first housing portion 120 and is partially located outside the first rotating member 141 to at least partially shield the first rotating member 141. The second blocking cover 160 is fixed to the second housing portion 130 and is partially located outside the second rotating member 142 to at least partially shield the second rotating member 142. The first blocking cover 150 and the second blocking cover 160 are arranged so that the first fixed portion 141b and the second fixed portion 142b are in a relatively closed space, and shield a portion of the first rotating portion 141a and a portion of the second rotating portion 142a, thereby reducing the pollution of the first rotating member 141 and the second rotating member 142 by dust and water vapor in the air, facilitating the cleaning and maintenance of the housing structure 1, and thus improving the user experience. It should be noted that the embodiments of the present application are intended to simplify the structure of the first block cover 150 and the second block cover 160, so the first block cover 150 and the second block cover 160 partially cover the first rotating member 141 and the second rotating member 142, but the present application is not limited to this. In some embodiments of the present application, the first block cover 150 and the second block cover 160 can completely cover the first rotating member 141 and the second rotating member 142 to achieve a better sealing effect.

[0036] Preferably, the angle between the end surface of the second end 120b and the extension direction of the first shell 120 is not equal to 90°, and the angle between the end surface of the fourth end 130b and the extension direction of the second shell 130 is not equal to 90°, thereby increasing the end surface area of ​​the second end 120b and the fourth end 130b, increasing the area of ​​the first air hole 121 and the second air hole 131, and then increasing the air volume. It should be noted that in some embodiments of the present application, only the angle between the end surface of the second end 120b and the extension direction of the first shell 120 is not equal to 90°, or only the angle between the end surface of the fourth end 130b and the extension direction of the second shell 130 is not equal to 90°. It should be understood that in the embodiment of the present application, the first blocking cover 150 is fixedly mounted on the first shell portion 120, and the first blocking cover 150 and the first shell portion 120 together constitute the end face of the second end 120b, and the first air hole 121 is arranged at the second end 120b, that is, the first air hole 121 is arranged at the part of the second end 120b, and the angle between the end face part of the second end 120b and the extension direction of the first shell portion 120 is not equal to 90, but in some embodiments of the present application, the first blocking cover 150 does not constitute the end face of the second end 120b, and the end face of the second end 120b has only one face. At this time, the angle between the end face of the second end 120b and the extension direction of the first shell portion 120 is not equal to 90°, and the situation of the fourth end 130b is the same as that of the second end 120b, which will not be elaborated here.

[0037] Preferably, in the width direction of the first shell 120 and the second shell 130, the connecting portion 140 is arranged close to the accommodating space 110, thereby increasing the end surface area of ​​the second end 120b and the fourth end 130b, and further increasing the area of ​​the first air hole 121 and the second air hole 131 to increase the air intake.

[0038] The embodiment of the utility model provides the first air hole 121 and the second air hole 131 at the second end 120b and the fourth end 130b, thereby achieving air intake at the end of the neck hanging fan 2, that is, the air intake direction is parallel to the air suction direction of the fan 20, thereby reducing the wind loss caused by the turning of the airflow from the air inlet to the fan 20. The first shell 120 is provided with the first air hole 121 and the third air hole 123 on the side and the end surface at the same time, thereby increasing the air intake direction of the airflow and thus increasing the wind force. The second end 120b and the fourth end 130b are arranged in the form of an inclined surface, and the connecting portion 140 is arranged close to the accommodating space 110 in the width direction, thereby increasing the area of ​​the inclined surface, that is, increasing the area of ​​the first air hole 121 and the second air hole 131, thereby increasing the air volume. Moreover, the embodiment of the present application also includes a first blocking cover 150 and a second blocking cover 160, which can partially cover the connection part 140, thereby preventing dust in the air from adhering to the connection part 140, and the connection part 140 is arranged close to the user's neck when in use. The arrangement of the first blocking cover 150 and the second blocking cover 160 can prevent the user's neck from directly contacting the connection part 140, thereby preventing oil from contacting and corroding the connection part 140, and can prevent the connection part 140 from squeezing the user's skin and catching the user's hair when rotating, thereby facilitating cleaning and improving user experience. On the other hand, the embodiment of the present application adopts a damping shaft 143 connection method, so that the user can turn and stop immediately, and the user experience is strong.

[0039] See also Figure 5 and Figure 6 In combination with the above figures, the embodiment of the present application further provides a neck hanging fan 2, which includes the above-mentioned shell structure 1, a power supply 10 and a fan 20, the number of the power supply 10 and the fan 20 is two, the two power supplies 10 and the two fans 20 are respectively arranged in the first shell part 120 and the second shell part 130, the first shell part 120 is further provided with a fifth air hole 124, and the second shell part 130 is provided with a sixth air hole 133, wherein, in the first shell part 120, the first air hole 121 and the third air hole 123 are air inlet holes, and the first air inlet hole and the third air inlet hole are correspondingly provided with an air inlet cavity 11, the fan 20 is arranged close to the first air hole 121 and the third air hole 123, and the fifth air hole 124 is an air outlet hole. The air flow flows into the interior of the first shell 120 through the first air hole 121 and the third air hole 123, and is guided to the fifth air hole 124 through the fan 20 to flow out. The structure of the second shell 130 is similar to that of the first shell 120, which will not be repeated here.

[0040] Preferably, please refer to Figure 7, the first shell 120 and the second shell 130 are both provided with a wire hole 101, and the neck hanging fan also includes a wire 30, which is a strip-shaped wire. The wire 30 is electrically connected to the two power supplies 10 respectively, and the wire 30 is arranged through the wire hole 101, and the wire 30 hangs down on the connection part 140. It should be noted that in the embodiment of the present application, the wire 30 is arranged in a strip-shaped manner to partially cover the connection part 140, and the strip-shaped wire 30 is more conducive to bending and not easy to be damaged, but the present application does not limit the specific shape of the wire 30. In other embodiments of the present application, the cross-section of the wire 30 can also be cylindrical or rectangular or other polygonal shapes.

[0041] The neck-hanging fan 2 of the embodiment of the present application includes the above-mentioned shell structure 1, so the neck-hanging fan 2 of the embodiment of the present application includes the beneficial effects of the above-mentioned shell structure 1. In addition, the neck-hanging fan 2 of the embodiment of the present application is arranged close to the air inlet, and a corresponding air inlet cavity 11 is provided, so that the airflow has space to turn before being sucked into the fan 20, thereby reducing the loss of wind power.

[0042] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A housing structure, characterized in that: include: A first shell portion, wherein in an extending direction of the first shell portion, the first shell portion has a first end and a second end; A second shell portion, wherein in an extending direction of the second shell portion, the second shell portion has a third end and a fourth end; and a connecting portion, one end of which is disposed at the second end or close to the second end, and the other end of which is disposed at the fourth end or close to the fourth end; The first shell portion and the second shell portion enclose a receiving space to accommodate the neck, the second end is provided with a first air hole in the extension direction of the first shell portion, and / or the fourth end is provided with a second air hole in the extension direction of the second shell portion.

2. The housing structure according to claim 1, characterized in that: A third air hole is provided on a side of the first shell portion away from the accommodating space and close to the second end; and / or A fourth air hole is provided on a side of the second shell portion away from the accommodating space and close to the fourth end.

3. The housing structure according to claim 1, characterized in that: The connecting portion comprises: a first rotating member, the first rotating member being disposed on the first shell portion and the first rotating member being disposed at the second end or close to the second end; and The second rotating member is rotatably connected to the first rotating member, the second rotating member is arranged on the second shell portion, and the second rotating member is arranged at the fourth end or close to the fourth end.

4. The housing structure according to claim 3, characterized in that: The first rotating member and the second rotating member are connected in damped rotation.

5. The housing structure according to claim 4, characterized in that: The first rotating member includes a first rotating part and a first fixed part, the first fixed part is fixed on the first shell part, the second rotating member includes a second rotating part and a second fixed part, the second fixed part is fixed to the second shell part, and the connecting part also includes a damping member and a rotating shaft, the rotating shaft is inserted into the first rotating part, the second rotating part and the damping member.

6. The housing structure according to claim 3, characterized in that: The housing structure further comprises: a first blocking cover, the first blocking cover being fixed to the first shell portion and at least partially located outside the first rotating member to at least partially cover the first rotating member; A second blocking cover is fixed to the second shell portion and is at least partially located outside the second rotating member to at least partially cover the second rotating member.

7. The housing structure according to any one of claims 1 to 6, characterized in that: The angle between at least part of the end surface of the second end and the extension direction of the first shell portion is not equal to 90°; and / or An angle between at least a portion of the end surface of the fourth end and the extension direction of the second shell portion is not equal to 90°.

8. The housing structure according to claim 7, characterized in that: In the width direction of the first shell portion and the second shell portion, the connecting portion is disposed close to the accommodating space.

9. A neck hanging fan, characterized in that: The invention comprises a housing structure as claimed in any one of claims 1 to 8, and: A power source, provided in the first shell portion and / or the second shell portion; A fan is arranged on the first shell portion and / or the second shell portion.

10. The neck hanging fan according to claim 9, characterized in that: The first shell part and the second shell part are both provided with a wire passing hole. In the first shell part, the wire passing hole is provided at the second end or close to the second end, and in the second shell part, the wire passing hole is provided at the fourth end or close to the fourth end.

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