Neck-hung fan

Abstract

The utility model discloses a neck-hanging fan, which comprises a shell, a fan and a circuit assembly, the shell comprises a connecting part and two mounting parts arranged at the two ends of the connecting part respectively, the two mounting parts are oppositely arranged, air ducts and electric control cavities are formed in the mounting parts and separated through partition plates, the mounting parts are further provided with first air outlets and air inlets, the first air outlets and the air inlets are communicated with the air ducts, the partition plates are provided with ventilation openings, and the ventilation openings penetrate through the partition plates. The electric control cavity communicates with the air duct through the ventilation opening, a heat dissipation outlet is formed in the cavity wall of the electric control cavity, and the electric control cavity communicates with the external environment through the heat dissipation outlet. The fan is rotationally mounted in the air duct and used for driving external airflow to flow into the air duct through the air inlet and then flow out of the air outlet; the circuit assembly is installed in the electric control cavity and electrically connected with the fan. According to the technical scheme, the cooling performance of the neck-hanging fan can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of neck fans, and particularly relates to a neck fan. Background Art

[0002] A neck fan is a blowing device that can be worn around the neck. It can move with the user and free the user's hands. By blowing air towards the human face and neck, it can achieve the purpose of cooling and heat dissipation.

[0003] Currently, usually the fan and the circuit components are respectively installed in the air duct and the electronic control cavity. When the neck fan is in use, the circuit components will generate a large amount of heat, resulting in a high temperature in the electronic control cavity, affecting the working state of the circuit components and reducing the service life. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a neck fan, aiming to improve the heat dissipation performance of the neck fan.

[0005] To achieve the above purpose, the neck fan proposed by the utility model includes:

[0006] A housing, including a connecting portion and two mounting portions respectively provided at both ends of the connecting portion. The two mounting portions are arranged opposite to each other. An air duct and an electronic control cavity are provided in the mounting portion. The air duct and the electronic control cavity are separated by a partition. The mounting portion further has a first air outlet and an air inlet, and both the first air outlet and the air inlet are connected to the air duct. The partition is provided with a ventilation port, and the ventilation port penetrates through the partition. The electronic control cavity is connected to the air duct through the ventilation port. The cavity wall of the electronic control cavity is provided with a heat dissipation outlet, and the electronic control cavity is connected to the external environment through the heat dissipation outlet;

[0007] A fan, rotatably mounted in the air duct, for driving the outside air to flow into the air duct through the air inlet and then flow out from the air outlet; and

[0008] A circuit component, mounted in the electronic control cavity and electrically connected to the fan.

[0009] Optionally, the ventilation port and the heat dissipation outlet are arranged opposite to each other.

[0010] Optionally, the heat dissipation outlet is located on the lower side surface of the mounting portion.

[0011] Optionally, the mounting portion further has a plurality of second air outlets, and the plurality of second air outlets are spaced apart along the extending direction of the air duct.

[0012] Optionally, the mounting portion further has a plurality of third air outlets, and the plurality of third air outlets are provided on the inner side surface of the mounting portion and are located between both ends of the mounting portion. The plurality of third air outlets are spaced apart from each other.

[0013] Optionally, the blower is provided at one end of the air duct, and the size of the air duct is tapered in a direction away from the blower.

[0014] Optionally, the neck-mounted fan further includes a display screen, which is provided on the outer side of the mounting portion and electrically connected to the circuit component.

[0015] Optionally, a plurality of mounting holes are provided on the outer side of the mounting portion, and the plurality of mounting holes penetrate through the side wall of the mounting portion. The blower is fixed in the air duct through the mounting holes; the neck-mounted fan further includes a cover plate, which covers the air inlet and the mounting holes and is spaced from the surface of the mounting portion.

[0016] Optionally, a plurality of hooks are provided on the inner side surface of the cover plate, and the plurality of hooks are spaced apart along the circumferential direction of the cover plate. The mounting portion is provided with a plurality of slots, and the plurality of slots correspond to the plurality of hooks one by one, and the slots are engaged with the corresponding hooks.

[0017] Optionally, a groove is provided on the outer side surface of the mounting portion, and the air inlet, the mounting holes, and the slots are all provided on the bottom wall of the groove. The cover plate covers the groove and is spaced from the groove wall.

[0018] In the technical solution of the present utility model, two mounting portions are provided at both ends of the housing connecting portion, the two mounting portions are arranged opposite to each other, an air duct and an electric control cavity are provided in the mounting portion, the electric control cavity and the air duct are separated by a partition plate, the mounting portion further has a first air outlet and an air inlet, both the first air outlet and the air inlet are communicated with the air duct, the partition plate is provided with a ventilation port, the electric control cavity is communicated with the air duct through the ventilation port, the cavity wall of the electric control cavity is provided with a heat dissipation outlet, and the electric control cavity is communicated with the external environment through the heat dissipation outlet. The blower is rotatably mounted in the air duct to drive the outside air to flow into the air duct from the air inlet and then discharge from the first air outlet. The circuit component is mounted in the electric control cavity and is electrically connected to the blower. In this way, when the user is using, when the blower makes the outside air flow into the air duct from the air inlet, part of the air can flow into the electric control cavity from the ventilation port and then flow out from the heat dissipation outlet. In this way, the heat generated by the circuit component can be blown outside the electric control cavity, which can effectively improve the heat dissipation performance of the neck-mounted fan. Moreover, while the circuit component can be cooled in this way, it will not affect the air volume of the first air outlet, which is beneficial to improving the user experience. Description of the Drawings

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of an embodiment of the utility model neck hanging fan;

[0021] Figure 2 for Figure 1 Exploded image of the middle halter fan;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 1 Side view of the mid-halter fan;

[0024] Figure 5 for Figure 1 Structural diagram of the middle installation part;

[0025] Figure 6 for Figure 1 Side view of the mid-halter fan;

[0026] Figure 7 for Figure 6 Cross-sectional view at AA in the middle.

[0027] Description of Figure Numbers:

[0028] 10. Housing; 11. Connecting portion; 12. Mounting portion; 121. First air outlet; 122. Air inlet; 123. Second air outlet; 124. Third air outlet; 125. Heat dissipation outlet; 126. Slot; 127. Mounting hole; 128. Groove; 13. Air duct; 14. Electric control chamber; 20. Fan; 30. Circuit assembly; 40. Display; 50. Cover; 51. Hook; 60. Power module; 70. Partition; 71. Ventilation opening

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The present utility model provides a neck fan.

[0034] In the embodiments of the present utility model, as Figures 1 to 7 shown, the neck fan includes a housing 10, a fan 20, and a circuit component 30.

[0035] Specifically, the housing 10 includes a connecting portion 11 and two mounting portions 12 provided at both ends of the connecting portion 11. The two mounting portions 12 are arranged oppositely. An air duct 13 and an electric control cavity 14 are provided in the mounting portion 12. The air duct 13 and the electric control cavity 14 are separated by a partition 70. The mounting portion 12 further has a first air outlet 121 and an air inlet 122. Both the first air outlet 121 and the air inlet 122 are connected to the air duct 13. The partition 70 has a ventilation port 71. The ventilation port 71 penetrates through the partition 70. The electric control cavity 14 is connected to the air duct 13 through the ventilation port 71. A heat dissipation outlet 125 is provided on the cavity wall of the electric control cavity 14. The electric control cavity 14 is communicated with the external environment through the heat dissipation outlet 125;

[0036] The blower 20 is rotatably installed in the air duct 13 to drive the external air flow to flow into the air duct 13 through the air inlet 122 and then flow out from the first air outlet 121; the circuit component 30 is installed in the electronic control cavity 14 and is electrically connected to the blower 20.

[0037] Specifically, in the present application, the blower 20 includes an impeller and a driving motor. The driving motor is in transmission connection with the impeller to drive the impeller to rotate in the air duct 13, so as to drive the external air flow to flow into the air duct 13 through the air inlet 122 and then flow out from the first air outlet 121 and blow towards the user.

[0038] Furthermore, the neck-mounted fan further includes a power supply module 60. The power supply module 60 is installed in the electronic control cavity 14, and the electronic control module is electrically connected to the blower 20 to provide electric energy for the blower 20.

[0039] In the embodiment, the neck-mounted fan further includes a power supply module 60. The power supply module 60 is installed in the electronic control cavity 14 and is electrically connected to the blower 20. It can be understood that the power supply module 60 is used to provide electric energy for the blower 20 so that the blower 20 can still work normally when not connected to the external current. Optionally, the power supply module 60 is set to be rechargeable.

[0040] Specifically in actual use, when the user wears it, the first air outlet 121 faces the user, and the air inlet 122 faces away from the user. After the blower 20 drives the external air flow to flow into the air duct 13 through the air inlet 122, part of the air flow can flow into the electronic control cavity 14 through the ventilation port 71, exchange heat with the circuit component 30, and then flow out from the heat dissipation outlet 125, so as to realize the heat dissipation of the circuit component 30. With such a setting, not only can the heat dissipation of the circuit component 30 be realized, but also the air volume of the first air outlet 121 is not affected.

[0041] The technical solution of the utility model is to provide two installation parts 12 at both ends of the connection part 11 of the housing 10. The two installation parts 12 are arranged opposite to each other. An air duct 13 and an electric control cavity 14 are provided in the installation part 12. The electric control cavity 14 and the air duct 13 are separated by a partition 70. The installation part 12 further has a first air outlet 121 and an air inlet 122. Both the first air outlet 121 and the air inlet 122 are communicated with the air duct 13. The partition 70 has a ventilation port 71. The electric control cavity 14 is communicated with the air duct 13 through the ventilation port 71. The cavity wall of the electric control cavity 14 has a heat dissipation outlet 125. The electric control cavity 14 is communicated with the external environment through the heat dissipation outlet 125. The fan 20 is rotationally installed in the air duct 13 to drive the outside air to flow into the air duct 13 from the air inlet 122 and then discharge from the first air outlet 121. The circuit component 30 is installed in the electric control cavity 14 and is electrically connected to the fan 20. In this way, during the user's use, when the fan 20 makes the outside air flow into the air duct 13 from the air inlet 122, part of the air can flow into the electric control cavity 14 from the ventilation port 71 and then flow out from the heat dissipation outlet 125. In this way, the heat generated by the circuit component 30 can be blown outside the electric control cavity 14, effectively improving the heat dissipation of the neck fan. Moreover, while the circuit component 30 can be cooled in this way, the air volume of the first air outlet 121 will not be affected, which is beneficial to improving the user experience.

[0042] In some embodiments, the ventilation port 71 and the heat dissipation outlet 125 are arranged opposite to each other. With this arrangement, it is beneficial to improve the flow velocity of the air flow, so that after the air flow flows into the electric control cavity 14 from the ventilation port 71, it can quickly discharge from the heat dissipation outlet 125, improving the heat dissipation efficiency of the circuit component 30.

[0043] In some embodiments, the heat dissipation outlet 125 is located on the lower side surface of the installation part 12. Specifically, in the case of user wearing and using, when the user wears the neck fan of the present application around the neck, the outlet direction of the heat dissipation outlet 125 deviates from the user's face position. That is to say, the hot air blown out from the heat dissipation outlet 125 will not blow towards the user's face. With this arrangement, it is beneficial to improve the user experience. Of course, in other embodiments, the heat dissipation outlet 125 is provided on the outer side surface of the installation part 12.

[0044] In some embodiments, the installation part 12 further has a plurality of second air outlets 123. The plurality of second air outlets 123 are spaced apart along the extension direction of the air duct 13. Specifically, the second air outlets 123 are at least two, so that the air can be discharged through the second air outlets 123 and the first air outlet 121 at the same time to increase the air outlet positions of the neck fan. With this arrangement, it is beneficial to improve the user experience. Of course, in other embodiments, the second air outlet 123 can also be provided with one, and one second air outlet 123 is in a long strip shape extending along the extension direction of the air duct 13.

[0045] In some embodiments, the installation part 12 is further provided with a plurality of third air outlets 124. The plurality of third air outlets 124 are arranged on the inner side surface of the installation part 12 and are located between the two ends of the installation part 12. The plurality of third air outlets 124 are arranged at intervals with each other.

[0046] With this arrangement, air can be blown out simultaneously through the first air outlet 121, the second air outlet 123 and the third air outlet, so as to increase the air outlet positions of the neck-mounted fan. Such an arrangement is beneficial to improving the user experience. Of course, in other embodiments, only one third air outlet 124 may be provided, and the one third air outlet 124 is in a long strip shape extending along the extending direction of the air duct 13.

[0047] In some embodiments, the first air outlet 121 is arranged at one end of the installation part 12 far away from the connecting part 11 and is located inside the installation part 12. The plurality of second air outlets 123 are all arranged on the upper side surface of the installation part 12 and are distributed at intervals along the extending direction of the air duct 13. The plurality of third air outlets 1 are arranged inside the installation part 12 and are spaced apart from each other. With this arrangement, when the user wears it, air can be blown towards the user from the first air outlet 121, the second air outlet 123 and the third air outlet 124, thus improving the user experience.

[0048] In some embodiments, the fan 20 is arranged at one end of the air duct 13, and the size of the air duct 13 is tapered in the direction away from the fan 20.

[0049] As we know, without changing the motor speed, the size of the air duct 13 can affect the flow rate of the air flow. By tapering the air duct 13, after the fan 20 drives the air flow into the air duct 13, the tapered air duct 13 can increase the flow rate of the air flow, so that the air flow blown out from the first air outlet 121, the second air outlet 123 and the third air outlet 124 is stronger, thereby improving the cooling effect of the neck-mounted fan and being beneficial to improving the user experience. Of course, in other embodiments, the sizes of both ends of the air duct 13 are the same.

[0050] In some embodiments, the neck-mounted fan further includes a display screen 40. The display screen 40 is arranged on the outer side surface of the installation part 12 and is electrically connected to the circuit component 30.

[0051] Specifically, the display screen 40 can be used to display the power level of the power module 60, enabling users to clearly know the power level of the power module 60. The display screen 40 can also be used to display the rotation speed of the fan 20. For example, the display screen 40 can display in ways such as weak, medium, and strong according to the rotation speed of the fan 20, or can also be set to display first level, second level, third level, etc. It can be specifically set according to the actual situation. In other embodiments, the neck-mounted fan is provided with an indicator light, which is electrically connected to the circuit component 30 and is exposed on the surface of the installation part 12 to prompt users through the indicator light.

[0052] In some embodiments, the outer side surface of the installation part 12 is provided with a plurality of installation holes 127, and the plurality of installation holes 127 all penetrate through the side wall of the installation part 12. The fan 20 is fixed in the air duct 13 through the installation holes 127; the neck-mounted fan further includes a cover plate 50, and the cover plate 50 covers the air inlet 122 and the installation holes 127 and is spaced from the surface of the installation part 12.

[0053] Specifically, the cover plate 50 can cover the installation holes 127 and the air inlet 122 at the same time to block the installation holes 127 and the air inlet 122, so as to prevent the installation holes 127 and the air inlet 122 from being exposed on the surface of the installation part 12. Such a setting is beneficial to improving the overall aesthetics of the neck-mounted fan. Of course, in other embodiments, the neck-mounted fan may not be provided with the cover plate 50.

[0054] In some embodiments, the inner side surface of the cover plate 50 is provided with a plurality of hooks 51, and the plurality of hooks 51 are spaced along the circumferential direction of the cover plate 50. The installation part 12 is provided with a plurality of slots 126, and the plurality of slots 126 correspond to the plurality of hooks 51 one by one. The slots 126 are in snap-fit with the corresponding hooks 51. That is, the cover plate 50 is fixed by the snap-fit of the hooks 51 and the slots 126. As we know, the snap-fit of the hooks 51 and the slots 126 is convenient for disassembly and assembly and subsequent maintenance operations.

[0055] Of course, in other embodiments, the cover plate �0 is provided with a plurality of through holes, and the installation part 12 is provided with a plurality of threaded holes. The plurality of through holes and the plurality of threaded holes are arranged in one-to-one correspondence. The neck-mounted fan includes a plurality of screws, and one screw correspondingly passes through one through hole and is screwed with the threaded hole.

[0056] In some embodiments, the outer side surface of the installation part 12 is provided with a groove 128, and the air inlet 122, the installation holes 127, and the slots 126 are all provided on the bottom wall of the groove 128. The cover plate 50 is installed in the groove 128 and is spaced from the groove wall of the groove 128. By setting the groove 128 in this way and installing the cover plate 50 in the groove 128, the structure of the cover plate 50 can be hidden, preventing the whole cover plate 50 from protruding on the surface of the installation part 12. Such a setting is beneficial to improving the overall aesthetics of the neck-mounted fan. Of course, in other embodiments, the outer side surface of the installation part 12 may not be provided with the groove 128.

[0057] The above are only the preferred embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. A neck hanging fan, characterized in that: include: The housing includes a connecting portion and two mounting portions provided at both ends of the connecting portion, the two mounting portions being arranged opposite to each other, an air duct and an electric control cavity being provided in the mounting portion, the air duct and the electric control cavity being separated by a partition, the mounting portion further being provided with a first air outlet and an air inlet, the first air outlet and the air inlet both being connected to the air duct, the partition being provided with a vent, the vent penetrating the partition, the electric control cavity being connected to the air duct through the vent, a cavity wall of the electric control cavity being provided with a heat dissipation outlet, the electric control cavity being connected to the external environment through the heat dissipation outlet; a fan rotatably mounted in the air duct to drive external air flow into the air duct through the air inlet and then out of the air outlet; as well as A circuit component is installed in the electric control cavity and is electrically connected to the fan.

2. The neck hanging fan according to claim 1, characterized in that: The vent and the heat dissipation outlet are arranged opposite to each other.

3. The neck hanging fan according to claim 1, characterized in that The heat dissipation outlet is located on the lower side of the mounting portion.

4. The neck hanging fan according to claim 1, characterized in that The mounting portion is further provided with a plurality of second air outlets, and the plurality of second air outlets are distributed at intervals along the extension direction of the air duct.

5. The neck hanging fan according to claim 4, characterized in that: The mounting portion is further provided with a plurality of third air outlets, which are arranged on the inner side surface of the mounting portion and between the two ends of the mounting portion, and the plurality of third air outlets are spaced apart from each other.

6. The neck hanging fan according to claim 5, characterized in that: The fan is arranged at one end of the air duct, and the size of the air duct is gradually reduced in the direction away from the fan.

7. The neck hanging fan according to claim 1, characterized in that: The neck hanging fan further includes a display screen, which is arranged on the outer side of the mounting portion and is electrically connected to the circuit assembly.

8. The neck hanging fan according to claim 1, characterized in that: The outer side surface of the mounting portion is provided with a plurality of mounting holes, and the plurality of mounting holes all pass through the side wall of the mounting portion, and the fan is fixed in the air duct through the mounting holes; the neck hanging fan also includes a cover plate, which covers the air inlet and the mounting holes and is spaced from the surface of the mounting portion.

9. The neck hanging fan according to claim 8, characterized in that: The inner side surface of the cover plate is provided with a plurality of hooks, and the plurality of hooks are distributed at intervals along the circumference of the cover plate. The mounting portion is provided with a plurality of slots, and the plurality of slots correspond to the plurality of hooks one by one, and the slots are engaged with the corresponding hooks.

10. The neck hanging fan according to claim 9, characterized in that: A groove is provided on the outer side surface of the mounting portion, the air inlet, the mounting hole and the card slot are all provided on the bottom wall of the groove, and the cover plate is installed in the groove and spaced from the groove wall.

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