Fan structure with convertible air port

Abstract

The invention provides a fan structure with a convertible air port, which relates to the technical field of automobile seat fans, and comprises the following steps: a fan assembly is mounted in a mounting space in a shell assembly and is used for driving air to flow; the shell assembly is provided with a first air opening and a second air opening which are used for air suction and air blowing correspondingly. The first air opening and the second air opening are both used for being communicated with a ventilation assembly. The switching assembly is arranged on the shell assembly and used for switching the air suction state and the air blowing state. The switching assembly has a first state and a second state, and when the switching assembly is in the first state, the switching assembly is used for blowing air out of the mounting space to the ventilation assembly; and in the second state, the switching assembly is used for sucking the air into the mounting space from the ventilation assembly. Therefore, the two functions of air blowing and air suction are combined on the same fan structure, free switching of the two functions is achieved by adjusting the state of the switching assembly, and meanwhile the stable ventilation effect is achieved.

Description

Technical Field

[0001] The invention generally relates to the technical field of automobile seat fans, and in particular to a fan structure with switchable air outlets. Background Art

[0002] Existing car seats all have a ventilation function, and generally only have a single-mode blowing function.

[0003] After a lot of actual research, it is known that when passengers are riding in a single mode of blowing, the comfort level is poor. To solve the above situation, after many experiments, it is known that the subjective feeling of the human body will be more comfortable when the blowing and suction are switched.

[0004] Since the current fans only have a single blowing or suction function, if the blowing and suction functions are to be met, two fans with opposite directions must be set or the fan direction must be switched by a program. Among them, setting two fans is costly and bulky, which is not conducive to installation. The program switching fan direction has the problem of too small air volume and unclear ventilation effect. It is difficult to well realize a single fan on a seat with two stable ventilation modes of suction and blowing. Summary of the invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a fan structure with switchable air outlets.

[0006] The present invention provides a fan structure with a switchable air outlet, comprising: A shell component, wherein the shell component has an installation space, a first air suction channel and a first air blowing channel inside, and the shell component has a first air outlet and a second air outlet; the first air suction channel and the first air blowing channel are respectively connected to the installation space; the first air suction channel is connected to the first air outlet, the first air blowing channel is connected to the second air outlet, and the first air outlet and the second air outlet are both used to communicate with the ventilation component; A fan assembly, the fan assembly is installed in the installation space and is used to drive air flow; A switching component, wherein the switching component is arranged on the housing component; The switching component has a first state and a second state; When the switching component is in the first state, the first air outlet is connected to the ventilation component, and the second air outlet is blocked from the ventilation component, so that air is sucked from the ventilation component into the installation space through the first air suction channel; When the switching component is in the second state, the first air outlet and the ventilation component are blocked from each other, and the second air outlet is connected to the ventilation component, so as to allow air to be blown out from the installation space to the ventilation component through the first blowing channel.

[0007] According to the technical solution provided by the present invention, the switching component includes: A housing, wherein an air guide channel is provided inside the housing, and the housing is located at the first air outlet and the second air outlet; a partition plate, the partition plate being arranged in the air guiding channel and being used for dividing the air guiding channel into a second air suction channel and a second air blowing channel; The second air suction channel is connected to the first air suction channel through the first air outlet, and the second air blowing channel is connected to the first air blowing channel through the second air outlet; a switching device, the switching device being mounted on the housing; When the switching assembly is in the first state, the switching device is used to connect the ventilation assembly, the second air suction channel and the first air suction channel, and the first air blowing channel and the second air blowing channel are blocked from each other; When the switching component is in the second state, the switching device is used to connect the ventilation component, the first blowing channel and the second blowing channel, and the second suction channel and the first suction channel are blocked from each other.

[0008] According to the technical solution provided by the present invention, the switching device includes: a first windshield member, the first windshield member is rotatably mounted in the housing and comprises a first windshield portion and a second windshield portion with a gap therebetween; the second windshield portion is located in the second air suction channel; the first windshield portion is located in the second air blowing channel; the partition plate is located between the second windshield portion and the first windshield portion; The first wind shield has a third state and a fourth state; the first wind shield (8) is rotated to switch to the third state or the fourth state; When the first wind shield is in the third state, the first wind shield blocks the second air blowing channel and the ventilation assembly; the second wind shield and the partition plate are separated from each other, so as to connect the second air suction channel with the ventilation assembly; When the first wind shield is in the fourth state, the second wind shield blocks the second air suction channel and the ventilation assembly, and the first wind shield and the partition plate are separated from each other to connect the second air blowing channel with the ventilation assembly.

[0009] According to the technical solution provided by the present invention, the switching device includes: A second wind shielding member, the second wind shielding member is rotatably mounted at a second air suction channel in the housing; a third wind shielding member, the third wind shielding member being rotatably mounted at the second air blowing channel in the housing; The second wind shield and the third wind shield have a fifth state and a sixth state; a transmission mechanism, the transmission mechanism connecting the second wind shield and the third wind shield, and used for switching the second wind shield and the third wind shield between the fifth state and the sixth state; When the second wind shield and the third wind shield are in the fifth state, The second wind shield abuts against the inner side wall of the shell, blocking the second air suction channel and the ventilation component, the third wind shield is separated from the inner side wall of the shell, and the second air blowing channel is connected to the ventilation component; When the second wind shield and the third wind shield are in the sixth state, The second wind shield is separated from the inner wall of the shell, the third wind shield abuts against the inner wall of the shell to block the second blowing channel and the ventilation component, and the second suction channel is connected to the ventilation component.

[0010] According to the technical solution provided by the present invention, the switching device further includes: A first driving device is installed on the housing, and a driving shaft is fixedly connected to the first wind shield member, and is used to drive the first wind shield member to rotate so as to switch the state of the first wind shield member.

[0011] According to the technical solution provided by the present invention, a first air hole is provided on the side wall of the housing close to the second air suction channel, for allowing air to enter the installation space through the first air hole when the first wind shield is in the fourth state; When the first wind shielding member is in the third state, the second wind shielding portion blocks the first air hole.

[0012] According to the technical solution provided by the present invention, a second air hole is provided on the side wall of the housing close to the second blowing channel, so as to allow gas to be discharged from the installation space through the second air hole when the first wind shield is in the third state; When the first wind shielding member is in the fourth state, the first wind shielding portion blocks the second air hole.

[0013] According to the technical solution provided by the present invention, the shell and the shell assembly are an integrated structure.

[0014] According to the technical solution provided by the present invention, a first positioning groove is provided on one side of the partition plate close to the second wind shielding portion; and a first positioning protrusion is provided on the edge of the second wind shielding portion close to the partition plate; When the first wind shielding member is in the fourth state, the first positioning protrusion is inserted into the first positioning groove; A second positioning groove is provided on one side of the partition plate close to the first wind shielding portion; a second positioning protrusion is provided on the edge of the first wind shielding portion close to the partition plate; When the first wind shielding member is in the third state, the second positioning protrusion is inserted into the second positioning groove.

[0015] According to the technical solution provided by the present invention, the second windshield portion has a third positioning protrusion at an edge close to the first windshield portion; the first windshield portion has a fourth positioning protrusion at an edge close to the second windshield portion; The third positioning protrusion and the fourth positioning protrusion are used to abut against the edge of the partition plate in the third state and the fourth state, respectively.

[0016] The beneficial effects of the present invention are: The shell component has an installation space, a first suction channel and a first blowing channel, and has a first air outlet and a second air outlet; a fan component is installed at the installation space in the shell component to drive air flow; the first suction channel and the first blowing channel are respectively connected to the installation space; the first suction channel is connected to the first air outlet, the first blowing channel is connected to the second air outlet, and the first air outlet and the second air outlet are both used to communicate with the ventilation component. The switching component is arranged on the shell component and is used to switch between two states of suction or blowing. The switching component has a first state and a second state. When in the first state, the switching component is used to blow air out of the installation space to the ventilation component; when in the second state, the switching component is used to inhale air from the ventilation component into the installation space. In this way, the two functions of blowing and suction are combined on the same fan structure, and the free switching of the two functions is achieved by adjusting the state of the switching component, while satisfying the effect of stable ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of a fan structure with a switchable air outlet in a first embodiment; Figure 2 It is a structural schematic diagram of a fan structure with a switchable air outlet in a second embodiment; Figure 3 An exploded view of a fan structure with a switchable air outlet in a first embodiment; Figure 4 is a schematic structural diagram of a first wind shield; Figure 5 is a schematic diagram of the structure of the partition plate; Figure 6 is another structural schematic diagram of a partition plate; Figure 7 is a schematic structural diagram of a first wind shield in another embodiment; Figure 8 A schematic diagram of the structure of a partition plate in another embodiment; Fig. 9 is a structural schematic diagram of a switching component in a second state; Fig.10 is a structural schematic diagram of a switching component in a first state; Fig.11 It is a structural schematic diagram of a switching device in another embodiment; Fig.12 A schematic diagram of the structure of a transmission mechanism in one embodiment; Fig.13 A cross-sectional view of one side of the second wind shielding member in the fifth state; Fig.14 A cross-sectional view of one side of the third wind shielding member in the fifth state; Fig.15 A cross-sectional view of one side of the second wind shielding member in the sixth state; Fig.16 A cross-sectional view of one side of the third wind shielding member in the sixth state; Fig.17 It is a structural schematic diagram of a switching device in another embodiment; Fig.18 It is a structural schematic diagram of a transmission mechanism in another embodiment; Fig.19 is a cross-sectional view of one side of the second wind shielding member in a fifth state in another embodiment; Fig. 20 is a cross-sectional view of one side of the third wind shielding member in a fifth state in another embodiment; Fig.21 is a cross-sectional view of one side of the second wind shielding member in a sixth state in another embodiment; Fig. 22 is a cross-sectional view of one side of the third wind shielding member in a sixth state in another embodiment; wherein: 1. a shell assembly; 2. a shell; 3. a switching assembly; 4. a fan assembly; 5. a partition plate; 6. a first air outlet; 7. a second air outlet; 8. a first wind shield; 9. a first wind shield portion; 10. a second wind shield portion; 11. a first drive device; 12. a first air hole; 13. a second air hole; 14. a first positioning groove; 15. a first positioning protrusion; 16. a second positioning groove; 17. a second positioning protrusion; 18. a first partition plate; 19. a second partition plate; 20. a third positioning protrusion; 21. a fourth positioning protrusion; 22. a first suction channel; 23. a first blowing channel; 24. a second suction channel; 25. a second blowing channel; 26. a second wind shield; 27. a third wind shield; 28. a first gear; 29. ​​a second gear; 30. a second drive device; 31. a third air hole; 32. a fourth air hole; 33. a third gear; 34. a fourth gear; 35. a fifth gear. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] Please refer to Figure 1 and Figure 3 The present invention provides a fan structure with a switchable air outlet, comprising: A shell component 1, wherein the shell component 1 has an installation space, a first air suction channel 22 and a first air blowing channel 23 inside, and the shell component 1 has a first air outlet 6 and a second air outlet 7; the first air suction channel 22 and the first air blowing channel 23 are respectively connected to the installation space; the first air suction channel 22 is connected to the first air outlet 6, the first air blowing channel 23 is connected to the second air outlet 7, and the first air outlet 6 and the second air outlet 7 are both used to communicate with the ventilation component; A fan assembly 4, wherein the fan assembly 4 is installed in the installation space and is used to drive air flow; A switching component 3, wherein the switching component 3 is arranged on the housing component 1; The switching component 3 has a first state and a second state; When the switching component 3 is in the first state, the first air outlet 6 is connected to the ventilation component, and the second air outlet 7 is blocked from the ventilation component, so that air is sucked from the ventilation component into the installation space through the first air suction channel 22; When the switching component 3 is in the second state, the first air outlet 6 and the ventilation component are blocked from each other, and the second air outlet 7 is connected to the ventilation component, so as to allow air to be blown out from the installation space to the ventilation component through the first blowing channel 23.

[0021] Specifically, the ventilation assembly is a structure with an air passage inside, which is used to connect the space around the body surface of the passenger with the first air outlet 6 and the second air outlet 7 for air circulation.

[0022] refer to Figure 3 The housing assembly 1 includes, from top to bottom, an upper housing, a middle housing and a lower housing. The fan assembly 4 is installed between the middle housing and the lower housing. A first air intake channel is formed between the upper housing and the middle housing; an installation space and a first air blowing channel are provided between the middle housing and the lower housing.

[0023] The fan assembly 4 is installed in the housing assembly 1, so that the air in the installation space can only flow in one direction. The switching assembly 3 switches between two states, so that the air can only be blown out to the ventilation assembly or inhaled from the ventilation assembly at the same time, and the user can freely adjust according to actual needs.

[0024] Thus, the two functions of blowing and sucking are combined in the same fan structure, and the two functions can be freely switched by adjusting the state of the switching component 3, thereby meeting various needs.

[0025] In some embodiments, the cross-sectional area of ​​the first air outlet 6 is greater than the cross-sectional area of ​​the second air outlet 7, so as to increase the air flow rate during inhalation and increase the cooling speed during inhalation.

[0026] Furthermore, the switching component 3 includes: A housing 2, wherein the housing 2 has an air guide channel therein, and the housing 2 is located at the first air outlet 6 and the second air outlet 7; A partition plate 5, the partition plate 5 is arranged in the air guide channel, and is used to separate the air guide channel into a second air suction channel 24 and a second air blowing channel 25; The second air suction channel 24 is connected to the first air suction channel 22 through the first air outlet 6, and the second air blowing channel 25 is connected to the first air blowing channel 23 through the second air outlet 7; A switching device, wherein the switching device is mounted on the housing 2; When the switching component 3 is in the first state, the switching device is used to connect the ventilation component, the second air suction channel 24 and the first air suction channel 22, and the first air blowing channel 23 and the second air blowing channel 25 are blocked from each other; When the switching component 3 is in the second state, the switching device is used to connect the ventilation component, the first blowing channel 23 and the second blowing channel 25, and the second suction channel 24 and the first suction channel 22 are blocked from each other.

[0027] In some embodiments, reference Figure 3 The housing 2 includes a first sub-housing and a second sub-housing from top to bottom, and the two are connected or plugged into each other to form the housing 2.

[0028] In some embodiments, the housing 2 is detachably mounted on the housing assembly 1, and a partition plate 5 is installed in the housing 2. The partition plate 5 is installed parallel to the gas flow direction, and the first wind shield 8 is rotatably mounted on the housing 2, with the rotation axis perpendicular to the gas flow direction, so that the first wind shield 8 can block the gas flow.

[0029] The switching device is adjusted so that the switching component 3 is adjusted to the first state or the second state. Since the fan component 4 allows the air to flow in only one direction, the air flow directions in the two states are respectively: refer to Fig. 9 , air flow direction reference Fig. 9 When the switching device connects the second air outlet 7 to the installation space, the air is driven by the fan assembly 4 to flow toward the side close to the second air outlet 7 and is blown out from the installation space through the second air outlet 7.

[0030] refer to Fig.10 , air flow direction reference Fig.10 In the direction of the middle arrow. When the switching device connects the first air outlet 6 with the installation space, the air is driven by the fan assembly 4 to flow to the side close to the second air outlet 7; however, in the current state, the second air outlet 7 is not connected to the installation space, and the air cannot be blown out from the second air outlet 7. The air close to the first air outlet 6 is driven by the fan assembly 4 to the side of the second air outlet 7, and a pressure difference is generated between the side of the fan assembly 4 close to the first air outlet 6 and the first air outlet 6, and the air at the first air outlet 6 flows to the surrounding of the fan assembly 4, forming a suction effect.

[0031] Furthermore, the switching device comprises: a first windshield member 8, which is rotatably mounted in the housing 2 and comprises a second windshield portion 10 and a first windshield portion 9 with a gap therebetween; the second windshield portion 10 is located in the second air suction channel 24; the first windshield portion 9 is located in the second air blowing channel 25; the partition plate 5 is located between the second windshield portion 10 and the first windshield portion 9; The first wind shield member 8 has a third state and a fourth state; the first wind shield member (8) is rotated to switch the third state or the fourth state; When the first wind shield 8 is in the third state, the first wind shield 9 blocks the second air blowing channel 25 and the ventilation assembly; the second wind shield 10 and the partition plate 5 are separated from each other, so as to connect the second air suction channel 24 with the ventilation assembly; When the first wind shield 8 is in the fourth state, the second wind shield 10 blocks the second air suction channel 24 and the ventilation assembly, and the first wind shield 9 and the partition plate 5 are separated from each other to connect the second air blowing channel 25 with the ventilation assembly.

[0032] Specifically, the first wind shield 9 and the second wind shield 10 on the first wind shield 8 are respectively arranged at the second air outlet 7 and the first air outlet 6. The first wind shield 9 and the second wind shield 10 are both arc-shaped shield structures, and a rotating shaft is provided at the center of the arc-shaped shield on the first wind shield 8, and a mounting groove is provided on the housing 2. The first wind shield 8 can be rotatably mounted on the housing 2 through the rotating shaft and the mounting groove. A gap is provided between the first wind shield 9 and the second wind shield 10, and a partition plate 5 is provided between the two to avoid air leakage between the two.

[0033] In this way, at the same time, only the first wind shield 9 blocks the second air outlet 7, or the second wind shield 10 blocks the first air outlet 6. Therefore, by switching the state of the first wind shield 8, the switching device can control the second air outlet 7 or the first air outlet 6 to be connected to the installation space, and finally the switching component has the first state and the second state, so that the fan has the functions of blowing and sucking air.

[0034] In another embodiment, reference Figure 11-12 , the switching device comprises: A second wind shield 26, which is rotatably mounted on the second air suction channel 24 in the housing 2; A third wind shield 27, which is rotatably mounted on the second air blowing channel 25 in the housing 2; The second wind shield 26 and the third wind shield 27 have a fifth state and a sixth state; a transmission mechanism, the transmission mechanism connecting the second wind shield 26 and the third wind shield 27, and used for switching the second wind shield 26 and the third wind shield 27 between the fifth state and the sixth state; refer to Figure 13-14 , the arrow direction is the gas flow direction.

[0035] When the second wind shield 26 and the third wind shield 27 are in the fifth state, The second wind shield 26 abuts against the inner wall of the housing 2 to block the second air suction channel 24 and the ventilation assembly, the third wind shield 27 is separated from the inner wall of the housing 2, and the second air blowing channel 25 is connected to the ventilation assembly; refer to Figure 15-16 , the arrow direction is the gas flow direction.

[0036] When the second wind shield 26 and the third wind shield 27 are in the sixth state, The second wind shield 26 is separated from the inner wall of the shell 2, and the third wind shield 27 is in contact with the inner wall of the shell 2 to block the second blowing channel 25 and the ventilation component, while the second suction channel 24 is connected to the ventilation component.

[0037] In one embodiment, reference Figure 17-18 The second wind shield 26 and the third wind shield 27 both have an arc-shaped plate structure for blocking the flow of gas.

[0038] In this embodiment, the transmission mechanism includes: a first gear 28 , a second gear 29 and a second driving device 30 .

[0039] The first gear 28 is fixedly connected to the rotation shaft of the second wind shield 26, and the second gear 29 is fixedly connected to the rotation shaft of the third wind shield 27; the rotation shaft of the second wind shield 26 and the rotation shaft of the third wind shield 27 are mutually staggered, and the first gear 28 and the second gear 29 are mutually meshed; the second driving device 30 is mounted on the housing 2. The driving shaft of the second driving device 30 is fixedly connected or transmission-connected to the rotation shaft of the second wind shield 26.

[0040] The second driving device 30 is a motor, which is used to drive the second wind shield 26 to rotate in the forward or reverse direction, and drives the second wind shield 26 and the third wind shield 27 to rotate in opposite directions through the transmission relationship between the first gear 28 and the second gear 29, thereby switching the second wind shield 26 and the third wind shield 27 to the fifth state and the sixth state.

[0041] A third air hole 31 is formed on the side wall of the housing 2 close to the second air suction channel 24 , and a fourth air hole 32 is formed on the side wall of the housing 2 close to the second air blowing channel 25 .

[0042] When the second wind shield 26 and the third wind shield 27 are in the fifth state, the second wind shield 26 abuts against the inner wall of the shell 2 to block the second air suction channel 24 and the ventilation component, and the third air hole 31 is connected to the second air suction channel 24 to allow gas to flow from the outside into the second air suction channel 24.

[0043] When the second wind shield 26 and the third wind shield 27 are in the sixth state, the third wind shield 27 abuts against the inner wall of the shell 2 to block the second blowing channel 25 and the ventilation assembly, and the fourth air hole 32 is connected to the second blowing channel 25 to discharge the gas in the shell 2 to the outside.

[0044] This method can also achieve the two functions of suction and blowing, so that the two wind shields can block the ventilation components and the suction or blowing channels, avoiding the suction or blowing channels from being connected to the air holes opened on the shell and causing air leakage.

[0045] In another embodiment, the second wind shield 26 has an arc plate structure, and the third wind shield 27 is a straight plate; both are used to block the flow of gas. In this embodiment, the rotation axes of the second wind shield 26 and the third wind shield 27 are respectively installed on the side walls of the housing 2 on both sides.

[0046] The transmission mechanism includes: a third gear 33, a fourth gear 34 and a fifth gear 35 which are meshed in sequence.

[0047] The third gear 33 is fixed on the rotating shaft of the second wind shield 26, the fourth gear 34 is rotatably mounted on the partition plate 5, and the fifth gear 35 is fixedly mounted on the rotating shaft of the third wind shield 27; The driving shaft of the second driving device 30 is fixedly connected to the third gear 33. Through the meshing transmission relationship between the three gears, the second wind shield 26 and the third wind shield 27 can rotate in the same direction to achieve switching between the fifth state and the sixth state.

[0048] refer to Figure 19-20 , the arrow direction is the gas flow direction, and the second wind shield 26 and the third wind shield 27 are in the fifth state. Figure 21-22 , the arrow direction is the gas flow direction, and the second wind shield 26 and the third wind shield 27 are in the sixth state. The specific working process is consistent with the previous embodiment.

[0049] Furthermore, the switching device further comprises: The first driving device 11 is installed on the housing 2, and the driving shaft is fixedly connected or transmission-connected to the first wind shield 8, and is used to drive the first wind shield 8 to rotate to switch the state of the first wind shield 8.

[0050] Specifically, the driving shaft of the first driving device 11 is fixedly connected to the center of the arc-shaped baffles at the ends of the first wind shield portion 9 and the second wind shield portion 10 on the first wind shield member 8 to ensure smooth rotation of the first wind shield portion 9 and the second wind shield portion 10. The first driving device 11 (a motor in this embodiment, which is controlled by the passenger to rotate forward or reverse) controls the rotation of the first wind shield member 8 to switch between the third state and the fourth state, thereby controlling the fan to suck air from the ventilation component or blow air to the ventilation component. This method is simple to operate and easy to control.

[0051] In some embodiments, the first driving device 11 can also be a knob. This method has a simple structure, is light in weight, and is easy to install in various locations, especially locations that are inconvenient to arrange circuits, and has good adaptability.

[0052] Further, refer to Figure 9-10 A first air hole 12 is provided on the side wall of the housing 2 near the second air suction channel 24, for allowing air to enter the installation space through the first air hole 12 when the first wind shield 8 is in the fourth state; When the first wind shielding member 8 is in the third state, the second wind shielding portion 10 blocks the first air hole 12 .

[0053] Specifically, when blowing air, the total amount of air in the installation space is slightly reduced, so it is necessary to open the first air hole 12 to supplement the air in the installation space so that the fan assembly 4 can continue to blow air.

[0054] When suction is performed, in order to prevent the first air hole 12 from affecting the suction effect of the first air outlet 6 , the second wind shielding portion 10 is used to shield the first air hole 12 .

[0055] Furthermore, a second air hole 13 is provided on the side wall of the housing 2 near the second blowing channel 25, so as to allow air to be discharged from the installation space through the second air hole 13 when the first wind shield 8 is in the third state; When the first wind shielding member 8 is in the fourth state, the first wind shielding portion 9 blocks the second air hole 13 .

[0056] Specifically, when air is sucked, the total amount of air in the installation space increases slightly, so it is necessary to open a second air hole 13 for air to be discharged so that the fan assembly 4 can continue to suck air.

[0057] When blowing air, in order to prevent the second air holes 13 from affecting the blowing effect of the second air outlet 7 , the first wind shielding portion 9 is used to shield the second air holes 13 .

[0058] Further, refer to Figure 2The shell 2 and the shell assembly 1 are an integrated structure; this method can reduce the splicing between shells, reduce the splicing gaps, and reduce the risk of air leakage.

[0059] Further, refer to Figure 4 , Figure 5 A first positioning groove 14 is formed on one side of the partition plate 5 close to the first wind shielding portion 9; a first positioning protrusion 15 is formed on the edge of the first wind shielding portion 9 close to the partition plate; When the first wind shielding member 8 is in the fourth state, the first positioning protrusion 15 is inserted into the first positioning groove 14 .

[0060] Further, refer to Figure 4 , Figure 6 A second positioning groove 16 is formed on one side of the partition plate 5 close to the second wind shielding portion 10; a second positioning protrusion 17 is formed on the edge of the second wind shielding portion 10 close to the partition plate 5; When the first wind shielding member 8 is in the third state, the second positioning protrusion 17 is inserted into the second positioning groove 16 .

[0061] Specifically, the relative position between the wind shield and the partition plate 5 is fixed by interlocking the positioning groove and the positioning protrusion; when the velocity of the blown wind or the inhaled wind is too large, this structure can prevent the wind from blowing the wind shield to cause position displacement, resulting in a gap between the wind shield and the partition plate 5, thereby causing air leakage.

[0062] Further, refer to Figure 7-8 The first windshield portion 9 has a third positioning protrusion 20 at an edge close to the second windshield portion 10; the second windshield portion 10 has a fourth positioning protrusion 21 at an edge close to the first windshield portion 9; The third positioning protrusion 20 and the fourth positioning protrusion 21 are used to abut against the edge of the partition plate 5 in the third state and the fourth state, respectively.

[0063] Specifically, the partition plate 5 is separated from the middle into a first partition plate 18 and a second partition plate 19 . The first partition plate 18 and the second partition plate 19 can be respectively installed on the shell 2 , so as to facilitate the installation of the partition plate 5 .

[0064] In this case, when the first wind shield 8 is in two states respectively, the third positioning protrusion 20 and the fourth positioning protrusion 21 respectively abut against each other at the edge of the side of the second partition plate 19 away from the first partition plate 18, so that no gap is generated between the end of the second partition plate 19 away from the first partition plate 18 and the first wind shield 8 to cause air leakage, thereby having a better wind shielding effect.

[0065] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A fan structure with a switchable air outlet, characterized in that: include: A shell component (1), wherein the shell component (1) has an installation space, a first air suction channel (22) and a first air blowing channel (23) inside, and the shell component (1) has a first air outlet (6) and a second air outlet (7); the first air suction channel (22) and the first air blowing channel (23) are respectively connected to the installation space; the first air suction channel (22) is connected to the first air outlet (6), the first air blowing channel (23) is connected to the second air outlet (7), and the first air outlet (6) and the second air outlet (7) are both used to communicate with the ventilation component; A fan assembly (4), the fan assembly (4) being installed in the installation space and used to drive air flow; A switching component (3), wherein the switching component (3) is arranged on the housing component (1); The switching component (3) has a first state and a second state; When the switching component (3) is in the first state, the first air outlet (6) is in communication with the ventilation component, and the second air outlet (7) is blocked from the ventilation component, so that air is sucked from the ventilation component into the installation space through the first air suction channel (22); When the switching component (3) is in the second state, the first air outlet (6) and the ventilation component are blocked from each other, and the second air outlet (7) is connected to the ventilation component, so as to allow air to be blown out from the installation space through the first blowing channel (23) to the ventilation component.

2. A fan structure with switchable air outlet according to claim 1, characterized in that: The switching component (3) comprises: A shell (2), wherein the shell (2) has an air guide channel inside, and the shell (2) is located at the first air outlet (6) and the second air outlet (7); A partition plate (5), the partition plate (5) being arranged in the air guide channel and used for dividing the air guide channel into a second air suction channel (24) and a second air blowing channel (25); The second air suction channel (24) is connected to the first air suction channel (22) via the first air outlet (6), and the second air blowing channel (25) is connected to the first air blowing channel (23) via the second air outlet (7); A switching device, the switching device being mounted on the housing (2); When the switching assembly (3) is in the first state, the switching device is used to connect the ventilation assembly, the second air suction channel (24) and the first air suction channel (22), and the first air blowing channel (23) and the second air blowing channel (25) are blocked from each other; When the switching component (3) is in the second state, the switching device is used to connect the ventilation component, the first blowing channel (23) and the second blowing channel (25), and the second suction channel (24) and the first suction channel (22) are blocked from each other.

3. A fan structure with switchable air outlet according to claim 2, characterized in that: The switching device comprises: a first wind shield (8), the first wind shield (8) being rotatably mounted in the housing (2) and comprising a first wind shield portion (9) and a second wind shield portion (10) with a gap therebetween; the second wind shield portion (10) being located in the second air suction channel (24); the first wind shield portion (9) being located in the second air blowing channel (25); and the partition plate (5) being located between the second wind shield portion (10) and the first wind shield portion (9); The first wind shield (8) has a third state and a fourth state; the first wind shield (8) is rotated to switch to the third state or the fourth state; When the first wind shield (8) is in the third state, the first wind shield (9) blocks the second air blowing channel (25) and the ventilation component; the second wind shield (10) and the partition plate (5) are separated from each other, so as to allow the second air suction channel (24) to communicate with the ventilation component; When the first wind shield (8) is in the fourth state, the second wind shield (10) blocks the second air suction channel (24) and the ventilation component, and the first wind shield (9) and the partition plate (5) are separated from each other, so as to allow the second air blowing channel (25) to communicate with the ventilation component.

4. The fan structure with switchable air outlet according to claim 2, characterized in that: The switching device comprises: a second wind shield (26), the second wind shield (26) being rotatably mounted at the second air suction channel (24) in the housing (2); a third wind shield (27), the third wind shield (27) being rotatably mounted at the second air blowing channel (25) in the housing (2); The second wind shield (26) and the third wind shield (27) have a fifth state and a sixth state; a transmission mechanism, the transmission mechanism connecting the second wind shield (26) and the third wind shield (27) and used for switching the second wind shield (26) and the third wind shield (27) between the fifth state and the sixth state; When the second wind shield (26) and the third wind shield (27) are in the fifth state, The second wind shield (26) abuts against the inner side wall of the shell (2) to block the second air suction channel (24) and the ventilation component, the third wind shield (27) is separated from the inner side wall of the shell (2), and the second air blowing channel (25) is connected to the ventilation component; When the second wind shield (26) and the third wind shield (27) are in the sixth state, The second wind shield (26) is separated from the inner wall of the shell (2), the third wind shield (27) is in contact with the inner wall of the shell (2), blocking the second air blowing channel (25) and the ventilation component, and the second air suction channel (24) is connected to the ventilation component.

5. The fan structure with switchable air outlet according to claim 3, characterized in that: The switching device also includes: A first driving device (11), wherein the first driving device (11) is mounted on the housing (2), and a driving shaft is fixedly connected to the first wind shield (8), and is used to drive the first wind shield (8) to rotate, so as to switch the state of the first wind shield (8).

6. The fan structure with switchable air outlet according to claim 3, characterized in that: A first air hole (12) is provided on a side wall of the housing (2) close to the second air suction channel (24), for allowing air to enter the installation space through the first air hole (12) when the first air shield (8) is in the fourth state; When the first wind shield (8) is in the third state, the second wind shield (10) blocks the first air hole (12).

7. The fan structure with switchable air outlet according to claim 3, characterized in that: A second air hole (13) is provided on a side wall of the housing (2) close to the second air blowing channel (25), for allowing air to be discharged from the installation space through the second air hole (13) when the first air shield (8) is in the third state; When the first wind shielding member (8) is in the fourth state, the first wind shielding portion (9) blocks the second air hole (13).

8. The fan structure with switchable air outlet according to claim 3, characterized in that: The housing (2) and the housing assembly (1) are an integral structure.

9. A fan structure with switchable air outlet according to any one of claims 3 and 8, characterized in that: A first positioning groove (14) is provided on a side of the partition plate (5) close to the first wind shielding portion (9); and a first positioning protrusion (15) is provided on an edge of the first wind shielding portion (9) close to the partition plate. When the first wind shield (8) is in the fourth state, the first positioning protrusion (15) is inserted into the first positioning groove (14); A second positioning groove (16) is provided on a side of the partition plate (5) close to the second wind shielding portion (10); and a second positioning protrusion (17) is provided on an edge of the second wind shielding portion (10) close to the partition plate (5); When the first wind shield (8) is in the third state, the second positioning protrusion (17) is inserted into the second positioning groove (16).

10. A fan structure with switchable air outlet according to any one of claims 3 and 8, characterized in that: The first wind shield (9) has a third positioning protrusion (20) at an edge close to the second wind shield (10); and the second wind shield (10) has a fourth positioning protrusion (21) at an edge close to the first wind shield (9); The third positioning protrusion (20) and the fourth positioning protrusion (21) are used to abut against the edge of the partition plate (5) in the third state and the fourth state, respectively.

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