Fan guide mechanism, fan assembly, and pump

Abstract

A fan air guide mechanism, a fan assembly, and a pump are disclosed, relating to the field of inflation product technology. The fan air guide mechanism includes an air guide shroud and an impeller. The air guide shroud includes an air guide tube and multiple air guide ribs, all of which are installed inside the air guide tube and arranged at intervals around the circumference of the air guide tube. The impeller is located within the area enclosed by the multiple air guide ribs, and the impeller is rotatably engaged with the air guide shroud. Through structural design, the fan air guide mechanism can reduce the resistance encountered during airflow, improve motion efficiency, and increase inflation / deflation efficiency.

Description

Technical Field

[0001] This invention relates to the field of inflatable product technology, and more specifically, to a blower air guide mechanism, a blower assembly, and a pump. Background Technology

[0002] With the rise of outdoor living, people are keen to carry inflatable products when traveling. Inflatable products are small in size and lightweight when deflated, making them easy to store and transport. Examples of inflatable products include air mattresses and inflatable backpacks. For ease of use, air mattresses can be inflated using manual or electric air pumps. An air pump is a device that removes or adds air to a closed space. In current technology, air pumps generally use axial flow fans to agitate the air, causing it to flow along the fan's axis.

[0003] The inventors discovered that existing air pumps have at least the following drawbacks: During the operation of the blower, the gas flow resistance is high and the gas filling and discharging efficiency is low. Summary of the Invention

[0004] The present invention includes, for example, providing a fan guide mechanism, a fan assembly, and a pump that can change the airflow pattern, thereby reducing resistance and improving inflation / deflation efficiency.

[0005] The embodiments of the present invention can be implemented as follows: In a first aspect, the present invention provides a fan air guiding mechanism, comprising: The air guide shroud and impeller are provided. The air guide shroud includes an air guide tube and multiple air guide ribs. The multiple air guide ribs are installed inside the air guide tube and are arranged at intervals in the circumferential direction of the air guide tube. The impeller is located in the area enclosed by the multiple air guide ribs and is rotatably engaged with the air guide shroud.

[0006] In an optional embodiment, the air guide duct has a first port and a second port opposite each other in its axial direction, the width of the air guide rib gradually increases in the direction from the first port to the second port, and the width direction of the air guide rib is consistent with the radial direction of the air guide duct; the impeller is used to guide air from the first port to the second port when rotating.

[0007] In an optional embodiment, the length direction of the air guide rib forms an angle with the axis of the air guide tube.

[0008] In an optional embodiment, the angle between the length direction of the air guide rib and the axis of the air guide tube is α, the angle between the length direction of the air guide rib and a preset straight line is β, the angle α is greater than the angle β, and the preset straight line is perpendicular to the axis of the air guide tube.

[0009] In an optional implementation, the difference between the angle of α and the angle of β is in the range of 0-5°.

[0010] In a second aspect, the present invention provides a fan assembly, the fan assembly comprising: The motor and the fan guide mechanism described in any of the foregoing embodiments, wherein the output shaft of the motor is connected to the impeller, and the guide tube is connected to the casing of the fan.

[0011] Thirdly, the present invention provides a pump, the pump comprising: The fan assembly described in the foregoing embodiments.

[0012] In an optional embodiment, the pump further includes a pump housing, a control component, and a valve assembly, all of which are connected to the pump housing. The pump housing is provided with a first air outlet and a second air outlet, and the valve assembly is used to adjust the opening and closing of the second air outlet. The control component is used to adjust the operating state of the fan assembly.

[0013] In an optional implementation, the control component includes three button modules, which work together to control the pump to switch between an inflation state, a deflation state, and a shutdown state.

[0014] In an optional implementation, the control component works in conjunction with both the fan assembly and the valve assembly to open the second air outlet when the fan assembly is in operation, and to close the second air outlet when the fan assembly is in a closed state.

[0015] The beneficial effects of the embodiments of the present invention include, for example: In summary, the fan guide mechanism provided in this embodiment, by covering the impeller with a guide shroud, which includes a guide tube and multiple guide ribs installed inside the guide tube, creates multiple guide channels around the impeller. When the impeller rotates under the drive of the motor, the high-speed rotation of the impeller jigs the airflow. While the air undergoes centrifugal motion inside the guide shroud, it also rotates in the direction of impeller rotation. The guide ribs, distributed around the impeller and close to it, allow air to directly enter the guide channels the moment it is ejected from the impeller, minimizing ineffective rotational motion within the guide shroud and thus improving efficiency. This allows air to quickly pass through the fan guide mechanism, thereby increasing the charging and discharging efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the fan assembly provided in this embodiment; Figure 2 This is a schematic diagram of the structure of the air guide shroud provided in this embodiment; Figure 3 This is a cross-sectional view of the air guide shroud provided in this embodiment; Figure 4 This is a schematic diagram of the pump provided in this embodiment; Figure 5 This is a schematic diagram of the pump in the inflation state provided in this embodiment; Figure 6 This is a schematic diagram of the gas flow direction when the pump is in the charging state, as provided in this embodiment. Figure 7 This is a schematic diagram of the pump in the venting state provided in this embodiment; Figure 8 This is a schematic diagram of the gas flow direction when the pump is in the venting state, as provided in this embodiment.

[0018] icon: 100-Pump casing; 101-First inner cavity; 102-Second inner cavity; 103-First air outlet; 104-Second air outlet; 110-Baffle plate; 111-First through hole; 112-Second through hole; 200-Control component; 210-First module; 220-Second module; 230-Third module; 240-Trigger plate; 250-Flow channel switching plate; 251-Connecting hole; 260-Switch plate; 300-Valve assembly; 400-Fan assembly; 410-Air guide shroud; 411-Air guide tube; 4111-First port; 4112-Second port; 412-Air guide rib; 420-Impeller; 430-Motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] Please refer to Figures 1-3 This embodiment provides a fan air guide mechanism, which includes an air guide shroud 410 and an impeller 420. The air guide shroud 410 includes an air guide tube 411 and a plurality of air guide ribs 412. The plurality of air guide ribs 412 are all installed inside the air guide tube 411 and are arranged at intervals in the circumferential direction of the air guide tube 411. The impeller 420 is located in the area enclosed by the plurality of air guide ribs 412, and the impeller 420 is rotatably engaged with the air guide shroud 410.

[0026] As described above, the working principle of the fan air guiding mechanism provided in this embodiment is as follows: When the impeller 420 rotates under the drive of the motor 430, the high-speed rotation of the impeller 420 jerks the airflow. While the air undergoes centrifugal motion inside the air guide shroud 410, it also rotates in the same direction as the impeller 420. The air guide ribs 412 are distributed around the impeller 420, close to its position, allowing air to directly enter the air guide channel the moment it is thrown out of the impeller 420. This minimizes ineffective rotational motion of the air within the air guide shroud 410, thereby improving motion efficiency and enabling the air to quickly pass through the fan's air guide mechanism, thus improving the charging and discharging efficiency.

[0027] Please refer to Figures 1-8This embodiment also provides a pump, which includes a fan assembly 400, and the fan assembly 400 includes the fan air guide mechanism of the above embodiment.

[0028] The following embodiments illustrate the details of the pump of this application by way of example, with the help of accompanying drawings and text.

[0029] Please refer to Figures 1-8 In this embodiment, optionally, the pump includes a pump housing 100, a control component 200, a valve assembly 300, and a blower assembly 400. The pump housing 100 has an inner cavity. The control component 200 is mounted on the top of the pump housing 100, the valve assembly 300 is mounted on the side of the pump housing 100, and the blower assembly 400 is mounted in the inner cavity of the pump housing 100. The control component 200 works in conjunction with both the valve assembly 300 and the blower assembly 400, and can adjust the operating states of the valve assembly 300 and the blower assembly 400. That is, when inflation or deflation is required, operating the control component 200 allows the valve assembly 300 and the blower assembly 400 to be adjusted to a set operating state, making operation convenient.

[0030] Optionally, a partition 110 is installed in the inner cavity of the pump casing 100, dividing the inner cavity into a first inner cavity 101 and a second inner cavity 102. The fan assembly 400 is installed in the second inner cavity 102. The partition 110 is provided with a first through hole 111 and a second through hole 112, which are spaced apart in a first direction. Figure 6 and Figure 8 As shown, the first through hole 111 is located above the second through hole 112. The air inlet of the fan assembly 400 is connected to the second through hole 112, and the air outlet of the fan assembly 400 is connected to the first through hole 111. The first inner cavity 101 and the second inner cavity 102 can be selectively connected through the first through hole 111 or the second through hole 112. A first air outlet 103 is provided on the top edge of the pump housing 100, and a second air outlet 104 is provided on the side of the pump housing 100. The first air outlet 103 is connected to the first inner cavity 101, and the second air outlet 104 can be selectively connected to the first through hole 111 or the second through hole 112. A valve assembly 300 is connected to the pump housing 100 and is used to open or close the second air outlet 104.

[0031] Optionally, the control component 200 includes three button modules and a trigger plate 240. All three button modules are mounted on the top of the pump housing 100. The three button modules are designated as a first module 210, a second module 220, and a third module 230. Pressing the first module 210 simultaneously opens the blower assembly 400 and causes the valve assembly 300 to open the second air outlet 104, allowing for inflation. When deflation is required, pressing the third module 230 returns the first module 210 to its initial state, stops the blower assembly 400, and closes the second air outlet 104. Then, pressing the second module 220 simultaneously opens the blower assembly 400 and causes the valve assembly 300 to open the second air outlet 104, switching the air duct, allowing for deflation. It should be understood that the second module 220 also needs to be reset by pressing the third module 230. In this way, the three button modules can be used to control the blower assembly 400 to switch between inflation, deflation and shutdown states, making operation flexible and convenient.

[0032] It should be understood that the actions of the first module 210, the second module 220 and the third module 230 can be achieved through the cooperation of elastic elements and inverted structures.

[0033] Furthermore, when the first module 210 and the second module 220 are pressed, they can drive the trigger plate 240 to move, so that the trigger plate 240 contacts the switch of the fan assembly 400, thereby turning on the fan assembly 400. The third module 230 can return the trigger plate 240 to its initial position, thereby turning off the fan assembly 400.

[0034] For example, in this embodiment, when the first module 210 or the second module 220 is pressed down, the trigger plate 240 moves to the left, and the buckle on the first module 210 or the second module 220 can pass over the position of the trigger plate 240 and be located below the trigger plate 240. The first module 210 and the second module 220 cannot rise automatically, and the trigger plate 240 cannot move to the right. The trigger plate 240 is always in the state of turning on the fan assembly 400. When it is necessary to contact the pressed state of the first module 210 and the second module 220, the third module 230 is pressed down, and the trigger plate 240 continues to move to the left. At this time, the buckle on the first module 210 or the second module 220 leaves the trigger plate 240. The first module 210 or the second module 220, which is in the pressed state, rises under the action of the elastic element. When the third module 230 is released, the trigger plate 240 can move to the right and reset under the action of the elastic element, and the third module 230 can rise and reset under the action of the elastic element.

[0035] The elastic element can be a spring.

[0036] It should be understood that the switch of the fan assembly 400 can be set on the circuit board, and the trigger board 240 turns the fan assembly 400 on or off by pressing the switch on the circuit board.

[0037] Optionally, the control assembly 200 further includes a flow channel switching plate 250 and a switch plate 260. The flow channel switching plate 250 is slidably installed in the first inner cavity 101. The flow channel switching plate 250 is provided with a connecting hole 251, which can be a gradient hole. The connecting hole 251 has a first end and a second end, with the diameter of the first end being larger than the diameter of the second end. The flow channel switching plate 250 is clamped between the partition plate 110 and the pump housing 100. The first end is always in communication with the second air outlet 104, and the second end can selectively communicate with the first through hole 111 and the second through hole 112 during the up-and-down sliding of the flow channel switching plate 250. It should be understood that when the flow switching plate is connected to the first through hole 111 above, the valve assembly 300 and the blower assembly 400 are opened. Air enters the first inner cavity 101 from the first air outlet 103, then enters the second inner cavity 102 from the second through hole 112, then enters the connecting hole 251 from the second inner cavity 102, and finally enters the inflatable product from the connecting hole 251 through the second air outlet 104 for inflation. Similarly, when the flow switching plate 250 slides downward to connect the second end with the second through hole 112, the second through hole 112 is directly connected to the second air outlet 104. After the blower assembly 400 is started, the gas in the inflatable product directly enters the second inner cavity 102, then enters the first inner cavity 101 from the first through hole 111, and finally exits from the first air outlet 103, thus releasing the gas. The switch plate 260 is connected to the flow channel switching plate 250. The switch plate 260 can be pressed down alone or together with the flow channel switching plate 250. When the switch plate 260 is pressed down, it can open the valve assembly 300, thereby opening the second air vent 104.

[0038] For ease of operation, the first module 210 is an inflation module, and it is decorated with inflation symbols or words. The second module 220 is a deflation module, and it is also decorated with deflation symbols or words. The third module 230 is a reset module.

[0039] Please refer to Figures 5-8 In the initial state, the flow channel switching plate 250 is in a state where the second end is connected to the first through hole 111. When the first module 210 is pressed, the first module 210 drives the trigger plate 240 to move to the left, and at the same time drives the switch plate 260 to move down. The fan assembly 400 starts, the second air vent 104 opens, and the outside air can enter from the first air vent 103, pass through the first inner cavity 101, the second through hole 112, the second inner cavity 102 and the first through hole 111 into the connecting hole 251, and finally enter the inflatable product from the second air vent 104 for inflation.

[0040] When the second module 220 is pressed, it causes the trigger plate 240 to move to the left, simultaneously causing the switch plate 260 and the flow channel switching plate 250 to move downwards together. The second end of the flow channel switching plate 250 moves downwards to connect with the second through hole 112, and the switch plate 260 moves downwards to open the valve assembly 300 and the second air vent 104. At this time, after the blower assembly 400 starts, the gas in the inflated product directly enters the second inner cavity 102 through the second through hole 112, is discharged into the first inner cavity 101 through the first through hole 111, and is discharged from the first air vent 103, thus releasing the gas.

[0041] It should be understood that the rise and reset of the flow channel switching plate 250 and the switch plate 260 can both be achieved through elastic elements.

[0042] Please refer to Figures 1-3 In this embodiment, optionally, the fan assembly 400 includes a motor 430 and the aforementioned fan guide mechanism. The motor 430 is fixed in the second inner cavity 102, and the output shaft of the motor 430 is connected to the fan guide mechanism for transmission.

[0043] Optionally, the fan guide mechanism includes a guide shroud 410 and an impeller 420. The guide shroud 410 is connected to the housing of the motor 430, and the impeller 420 is mounted on the output shaft of the motor 430. The impeller 420 is located within the area enclosed by the guide shroud 410, and the impeller 420 can rotate relative to the guide shroud 410 under the action of the motor 430.

[0044] Optionally, the air guide shroud 410 includes an air guide tube 411 and multiple air guide ribs 412. The multiple air guide ribs 412 are all installed inside the air guide tube 411 and are evenly spaced in the circumferential direction of the air guide tube 411, forming an air guide channel between adjacent air guide ribs 412. It should be understood that the number of air guide ribs 412 can be designed as needed, and this embodiment does not impose a specific limitation.

[0045] Furthermore, the air guide duct 411 is annular, and has a first port 4111 and a second port 4112 opposite to each other in its axial direction. The air guide rib 412 is a plate-like structure, and is obliquely installed on the inner wall surface of the air guide duct 411. The two ends of the air guide rib 412 are flush with the first port 4111 and the second port 4112, respectively. In other words, the length direction of the air guide rib 412 forms an angle α with the axial extension direction of the air guide duct 411, and the length direction of the air guide rib 412 forms an angle β with a preset straight line. The angle α is greater than the angle β, and the preset straight line is perpendicular to the axis of the air guide duct 411. Thus, α and β are complementary angles. Optionally, α-β=0-5°, that is, the difference between α and β is not greater than 5°. By designing the angles α and β, the lateral angle is made smaller than the vertical angle, which makes it easier for the air guide rib 412 and the rotating air contact surface to be in a large-angle tilt state, which is more conducive to the axial flow of air and can reduce the wind resistance of the axial flow of air.

[0046] Meanwhile, the air guide rib 412 is designed with a gradually increasing width, with the width of the air guide rib 412 gradually increasing from the first port 4111 to the second port 4112. The width direction of the air guide rib 412 is consistent with the radial direction of the air guide duct 411. Furthermore, the impeller 420 is located on the same side as the first port 4111. When the impeller 420 rotates, it can guide air from the first port 4111 to the second port 4112. That is, when the impeller 420 rotates, air can enter from the first port 4111, enter the air guide channel under the action of centrifugal force, and finally be discharged from the second port 4112, realizing axial flow.

[0047] It should be noted that the fan assembly 400 is installed in the second inner cavity 102, with the first port 4111 aligned with the second through hole 112. After the fan assembly 400 is started, it can introduce air into the second through hole 112, which then passes through the impeller 420 and the air guide channel before entering the second inner cavity 102 from the second port 4112, and then entering the first inner cavity 101 or the inflatable product from the first through hole 111.

[0048] It should be understood that by adding guide ribs 412 to the inner wall of the air guide duct 411, and with the impeller 420 rotating at high speed and jerking the airflow, the air undergoes centrifugal motion inside the air guide duct 411 while also rotating in the same direction as the impeller 420. The inclination angle α of the guide ribs 412 on the inner wall of the air guide duct 411 is reasonably designed, conforming to the air rotation direction, and the inclination angle reduces the resistance of the air exiting the air guide channel. Furthermore, the guide ribs 412 are distributed around the impeller 420, close to the impeller 420, allowing the air to directly enter the air guide channel the moment it is thrown out of the impeller 420, minimizing ineffective rotational motion of the air inside the air guide duct 411 and improving motion efficiency. The air guide ribs 412 on the inner wall of the air guide duct 411 are narrower near the air inlet and wider near the air outlet. This makes the gap between the air guide ribs 412 and the air outlet smaller. When air moves from the air inlet to the air outlet, it can ensure that the air is squeezed out better, prevent the air from doing ineffective rotation in the air guide duct 411, improve the air passage efficiency, and improve the inflation and deflation efficiency.

[0049] Therefore, the fan guide mechanism of this embodiment, by arranging the guide ribs 412 around the impeller 420, and in conjunction with the inclined structure and width structure of the guide ribs 412, can maximize the expulsion of air from the guide tube 411, improve the air filling and emptying efficiency, and save energy and reduce costs.

[0050] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fan air guiding mechanism, characterized in that, include: The wind guide shroud (410) and impeller (420) are provided. The wind guide shroud (410) includes a wind guide tube (411) and a plurality of wind guide ribs (412). The plurality of wind guide ribs (412) are installed inside the wind guide tube (411) and are arranged at intervals in the circumferential direction of the wind guide tube (411). The impeller (420) is located in the area enclosed by the plurality of wind guide ribs (412), and the impeller (420) is rotatably engaged with the wind guide shroud (410).

2. The fan air guiding mechanism according to claim 1, characterized in that: The air guide duct (411) has a first port (4111) and a second port (4112) opposite each other in its axial direction. The width of the air guide rib (412) gradually increases in the direction from the first port (4111) to the second port (4112). The width direction of the air guide rib (412) is consistent with the radial direction of the air guide duct (411). The impeller (420) is used to guide air from the first port (4111) to the second port (4112) when rotating.

3. The fan air guiding mechanism according to claim 1, characterized in that: The length direction of the air guide rib (412) is at an angle to the axis of the air guide tube (411).

4. The fan air guiding mechanism according to claim 1, characterized in that: The angle between the length direction of the air guide rib (412) and the axis of the air guide tube (411) is α, and the angle between the length direction of the air guide rib (412) and the preset straight line is β. The angle α is greater than the angle β, and the preset straight line is perpendicular to the axis of the air guide tube (411).

5. The fan air guiding mechanism according to claim 4, characterized in that: The difference between the angle of α and the angle of β is in the range of 0-5°.

6. A fan assembly (400), characterized in that, The fan assembly (400) includes: The motor (430) and the fan guide mechanism according to any one of claims 1-5, wherein the output shaft of the motor (430) is connected to the impeller (420), and the air guide tube (411) is connected to the housing of the fan.

7. A pump, characterized in that, The pump includes: The fan assembly (400) as described in claim 6.

8. The pump according to claim 7, characterized in that: The pump also includes a pump housing (100), a control component (200), and a valve assembly (300). The fan assembly (400), the control component (200), and the valve assembly (300) are all connected to the pump housing (100). The pump housing (100) is provided with a first air outlet (103) and a second air outlet (104). The valve assembly (300) is used to adjust the opening and closing of the second air outlet (104). The control component (200) is used to adjust the working state of the fan assembly (400).

9. The pump according to claim 8, characterized in that: The control component (200) includes three button modules, which work together to control the pump to switch between an inflation state, an deflation state, and a shutdown state.

10. The pump according to claim 8, characterized in that: The control component (200) works in conjunction with the fan assembly (400) and the valve assembly (300) to open the second air outlet (104) of the valve assembly (300) when the fan assembly (400) is in the working state, and to close the second air outlet (104) of the valve assembly (300) when the fan assembly (400) is in the closed state.

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