Novel turbofan and turbofan device
By installing a Tesla check valve mechanism on the inner wall of the turbine fan, the energy loss problem caused by the contact between the high-speed airflow and the inner wall is solved, thereby improving the outlet air speed and air volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-10
AI Technical Summary
When a turbo fan rotates at high speed, the high-speed airflow easily comes into contact with the inner wall, resulting in energy loss and a reduction in flow rate and outlet air speed.
A Tesla check valve mechanism, including multiple check channels and check rings, is installed on the inner wall of the turbo fan. The staggered structure is designed to reduce the direct contact between the airflow and the inner wall and increase the airflow speed.
The Tesla check valve mechanism reduces energy loss from high-speed airflow and increases the air velocity and volume at the outlet.
Smart Images
Figure CN224107426U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of turbine devices, especially a kind of novel turbine fan and turbofan device. BACKGROUND
[0002] Turbine fan has the advantages of wind power concentration, large air output compared with traditional axial fan, and has been widely used. Turbine fan inhales airflow from one side, and the rotating wind wheel in the turbine fan drives the inhaled airflow to rotate at high speed. The high-speed airflow can be discharged through the air duct to achieve the effect of air supply, heat dissipation or gas transportation. When the wind wheel rotates at high speed and drives the inhaled airflow to move at high speed, the high-speed airflow will move centrifugally relative to the wind wheel, and then directly contact the inner wall of the turbine fan, which will consume the energy of the high-speed airflow and reduce the flow rate of the high-speed airflow in the air duct, affecting the air outlet speed.
[0003] Therefore, it is necessary to further improve the structure of the current turbine fan. SUMMARY
[0004] To solve the above at least one technical problem, the main purpose of the utility model is to provide a kind of novel turbine fan and turbofan device.
[0005] To achieve the above purpose, one technical scheme adopted by the utility model is to provide a kind of novel turbine fan, comprising:
[0006] centrifugal wind wheel;
[0007] bottom frame, the bottom frame has a mounting portion, and the centrifugal wind wheel is detachably assembled in the mounting portion; the bottom frame has a second opening at the air outlet position;
[0008] upper cover, the upper cover can be covered on the bottom frame, one side of the upper cover has an air inlet corresponding to the centrifugal wind wheel, and the upper cover is provided with a first opening corresponding to the second opening; when the upper cover is covered on the bottom frame, the upper cover and the bottom frame form a volute, and the first opening and the second opening are connected to form an air outlet of the volute; a air supply channel is formed between the volute and the outer edge of the centrifugal wind wheel;
[0009] Among them, the inner wall of the bottom frame corresponding to the air supply channel has a Tesla check valve mechanism, or the inner wall of the upper cover corresponding to the air supply channel has a Tesla check valve mechanism, the check valve channel of the Tesla check valve mechanism extends along the extension direction of the air supply channel, and the inflow valve port of the check valve channel is located at the starting position of the air supply channel, and the outflow valve port of the check valve channel is located at the air outlet of the air supply channel.
[0010] Among them, the Tesla check valve mechanism includes a first check mechanism and a second check mechanism, the first check mechanism is located in the inner wall of the upper cover, and the second check mechanism is located in the inner wall of the bottom frame.
[0011] The third check valve mechanism is arranged on the inner wall of the upper cover corresponding to the air supply channel.
[0012] The first check valve mechanism comprises a first check valve channel, a first check valve ring and a second check valve ring.
[0013] The second check valve mechanism comprises a second check valve channel, a third check valve ring and a fourth check valve ring.
[0014] The first check valve ring, the second check valve ring, the third check valve ring and the fourth check valve ring each comprise an arc segment and a pointed segment.
[0015] The upper cover has at least two spaced-apart first check valve mechanisms corresponding to the inner wall of the air supply channel.
[0016] The bottom frame has at least two spaced-apart second check valve mechanisms corresponding to the inner wall of the air supply channel.
[0017] The upper cover comprises a cover body and a cover body surrounding wall.
[0018] The bottom frame comprises a frame body and a frame body surrounding wall.
[0019] The cover body surrounding wall has a butt joint outer edge, and the frame body has a butt joint inner edge.
[0020] The upper cover and the bottom frame are connected through the buckle mechanism.
[0021] Another technical scheme adopted by the utility model is to provide a turbofan device comprising the novel turbine fan.
[0022] The utility model discloses a technical scheme including centrifugal fan wheel, upper cover and bottom frame, wherein, through setting the Tesla check valve mechanism in the inner wall of upper cover or bottom frame, the check passage of Tesla check valve mechanism extends along the extension direction of air supply channel, and the inflow valve port of check passage is located at the starting position of air supply channel, and the outflow valve port of check passage is located at the air outlet of air supply channel, high-speed airflow enters check passage through the inflow valve port of Tesla check valve mechanism, check passage can make high-speed airflow pass through in it fast, can reduce the energy loss of high-speed airflow, and then promotes the flow velocity of high-speed airflow in the inner wall of volute, and it is favorable to the wind speed of air outlet. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the structure shown in these drawings.
[0024] Figure 1 It is a partial exploded structural schematic view of a novel turbine fan of an embodiment of the utility model;
[0025] Figure 2 It is a whole exploded structural schematic view of a novel turbine fan of an embodiment of the utility model;
[0026] Figure 3 It is a structural schematic view of bottom frame of an embodiment of the utility model;
[0027] Figure 4 It is a structural schematic view of upper cover of an embodiment of the utility model.
[0028] Label explanation:
[0029] 110, upper cover: 111, cover body, 1111, air inlet, 1112, grating, 1113, first opening, 112, cover body wall, 112, butt joint outer edge, 113, first check mechanism, 1131, first inflow valve port, 1132, first check ring, 1133, second check ring, 1134, first check passage, 1135, first outflow valve port;
[0030] 120, centrifugal fan wheel:
[0031] 130, bottom frame: 131, frame body, 1311, air outlet, 1312, air supply channel, 1313, second opening, 132, frame body wall, 1321, butt inner edge, 133, second check mechanism, 1331, second inflow valve port, 1332, third check ring, 1333, fourth check ring, 1334, second check channel, 1335, second outflow valve port;
[0032] 140, buckle mechanism.
[0033] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0035] It should be noted that the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.
[0036] Different from the problem in the related art that when the wind wheel rotates at high speed and drives the suction airflow to move at high speed, the high-speed airflow will move centrifugally relative to the wind wheel, is easy to directly contact the inner wall of the turbine fan, waste the energy of the high-speed airflow, and further reduce the flow rate of the high-speed airflow in the air duct, affecting the air outlet speed, the utility model provides a novel turbine fan, through the inner wall of the novel turbine fan is provided with a Tesla check valve mechanism, can accelerate the flow rate of airflow from the inner wall surface of the bottom frame or the upper cover, improve the wind speed of the air outlet. The specific structure of the novel turbine fan is described in the following embodiments.
[0037] Please refer to Figures 1 to 4 , Figure 1 It is a partial exploded structural schematic view of a novel turbine fan according to an embodiment of the utility model; Figure 2 It is a partial exploded structural schematic view of a novel turbine fan according to an embodiment of the utility model; Figure 3The structural schematic view of the bottom frame of an embodiment of the utility model; Figure 4 The structural schematic view of the upper cover of an embodiment of the utility model is shown in the figure.
[0038] The centrifugal fan wheel 120 has a receiving space in the middle for accommodating a high-speed motor, and the motor can drive the centrifugal fan wheel 120 to rotate at high speed. In order to better control the rotating speed of the centrifugal fan wheel 120 and further adjust the air speed of the air outlet 1311, the motor can be provided with multiple gears. Each gear corresponds to a different rotating speed of the motor, which in turn drives the centrifugal fan wheel 120 to rotate at different speeds. It can be understood that when the rotating speed of the centrifugal fan wheel 120 is low, the energy consumption of the device is low, and the air speed of the air outlet 1311 is slow. When the rotating speed of the centrifugal fan wheel 120 is high, the energy consumption of the device is high, and the air speed of the air outlet 1311 is fast. Users can flexibly adjust according to actual needs.
[0039] The bottom frame 130 has a mounting portion, and the centrifugal fan wheel 120 is detachably assembled in the mounting portion. The bottom frame 130 has a second opening 1313 at the air outlet position. The mounting portion is in the middle of the bottom frame 130, and the centrifugal fan wheel 120 is mounted in the mounting portion and located in the middle position of the bottom frame 130. In order to increase the mechanical strength of the bottom frame 130, the mounting portion and the inner wall of the bottom frame 130 are provided with multiple reinforcing ribs, which are evenly distributed. In addition, the outer wall of the bottom frame 130 can also be provided with reinforcing ribs to further improve the mechanical strength of the bottom frame 130. The bottom frame 130 has a second opening 1313 for air outlet, and the opening area of the second opening 1313 can be flexibly set according to needs.
[0040] An upper cover 110 is provided on the bottom frame 130, and one side of the upper cover 110 has an air inlet 1111 corresponding to the centrifugal fan 120. The upper cover 110 is provided with a first opening 1113 corresponding to the second opening 1313. When the upper cover 110 is provided on the bottom frame 130, the upper cover 110 and the bottom frame 130 form a volute, and the first opening 1113 and the second opening 1313 are connected to form an air outlet 1311 of the volute. The volute and the outer edge of the centrifugal fan 120 form an air supply channel 1312. In order to ensure the stability of the upper cover 110 and the bottom frame 130, the upper cover 110 and the bottom frame 130 can be fixed by bolts or clamping. The upper cover 110 has a first opening 1113, which is also used for exhaust. The area of the first opening 1113 can also be flexibly selected according to actual requirements. It is worth noting that when the upper cover 110 is provided on the bottom frame 130, the upper cover 110 and the bottom frame 130 form a closed volute, and the volute and the centrifugal fan 120 form an air supply channel 1312. The first opening 1113 and the second opening 1313 are connected to form an air outlet 1311 of the air supply channel 1312, and the starting position of the air supply channel 1312 is close to the centrifugal fan 120. The sidewall of the upper cover 110 is provided with an air inlet 1111, and the air inlet 1111 is provided with a grille 1112, which divides the air inlet 1111 into a plurality of small area air inlets 1111, so as to avoid that large foreign matters are involved in the centrifugal fan 120 and improve the reliability of the device.
[0041] In view of the problem that high-speed airflow is easy to contact the inner wall of the bottom frame 130 and the upper cover 110, and lose energy to affect the wind speed, the bottom frame 130 has a Tesla check valve mechanism corresponding to the inner wall of the air supply channel 1312, or the upper cover 110 has a Tesla check valve mechanism corresponding to the inner wall of the air supply channel 1312. The check valve channel of the Tesla check valve mechanism extends along the extension direction of the air supply channel 1312, and the inlet valve port of the check valve channel is located at the starting position of the air supply channel 1312, and the outlet valve port of the check valve channel is located at the air outlet 1311 of the air supply channel 1312. The inlet valve port of the check valve channel is located at the starting position of the air supply channel 1312, and the outlet valve port of the check valve channel is located at the air outlet 1311 of the air supply channel 1312. In this way, the Tesla check valve mechanism can allow the airflow to flow at high speed in the inner wall of the bottom frame 130 or the upper cover 110, and improve the wind speed of the air outlet 1311.
[0042] As a specific embodiment of the present solution, the Tesla check valve mechanism includes a first check mechanism 113 and a second check mechanism 133, the first check mechanism 113 is located in the inner wall of the upper cover 110, and the second check mechanism 133 is located in the inner wall of the bottom frame 130. Both the first check mechanism 113 and the second check mechanism 133 are Tesla check valves. When the high-speed gas flows in the air supply channel 1312, the high-speed gas flow is easy to directly contact the inner wall of the upper cover 110 and the inner wall of the bottom frame 130. Through the design of the above-mentioned Tesla check valve mechanism, the energy loss of the high-speed gas can be reduced, and the flow speed of the high-speed gas in the inner wall of the volute can be accelerated.
[0043] Considering that a part of the high-speed gas flow corresponds to the inner wall contact problem of the connection between the air supply channel 1312 and the upper cover 110 and the bottom frame 130, in order to further reduce the loss of the high-speed gas and the inner wall of the volute, the Tesla check valve mechanism further includes a third check mechanism, the third check mechanism is arranged on the inner wall of the connection between the upper cover 110 and the bottom frame 130. In a specific structure, one half of the third check mechanism is located in the inner wall of the upper cover 110, and the other half is located in the inner wall of the bottom frame 130. When the upper cover 110 is covered on the bottom frame 130, the two are connected to form the third check mechanism.
[0044] As a specific embodiment of the present solution, the first check mechanism 113 includes a first check channel 1134, a first check ring 1132 and a second check ring 1133, the first check channel 1134 has a first inlet valve port 1131 located at the starting position of the air supply channel 1312, and a first outlet valve port 1135 located at the air outlet 1311 of the air supply channel 1312, the first check ring 1132 and the second check ring 1133 are respectively located on both sides of the first check channel 1134 and are in communication with the first check channel 1134, and the first check ring 1132 and the second check ring 1133 are staggered.
[0045] The second check mechanism 133 comprises a second check passage 1334, a third check ring 1332 and a fourth check ring 1334. The second check passage 1334 has a second inlet valve port 1331 located at the starting position of the air supply passage 1312 and a second outlet valve port 1335 located at the air outlet 1311 of the air supply passage 1312. The third check ring 1332 and the fourth check ring 1334 are located at two sides of the second check passage 1334 and communicate with the second check passage 1334. The third check ring 1332 and the fourth check ring 1334 are staggered. In this embodiment, the first check mechanism 113 and the second check mechanism 133 can have the same or similar shape, but different distribution positions. The first check mechanism 113 is described in detail below. The first check mechanism 113 comprises a first check passage 1134, a plurality of first check rings 1132 and a plurality of second check rings 1133. The plurality of first check rings 1132 are arranged at the same side of the first check passage 1134, and the plurality of second check rings 1133 are arranged at the other side of the first check passage 1134. The first check rings 1132 and the second check rings 1133 are staggered. When the high-speed airflow enters from the first inlet valve port 1131, the high-speed airflow is divided into two parts. One part moves along the first check passage 1134, and the other part moves along the first check ring 1132 or the second check ring 1133, and finally converges into the first check passage 1134. The moving direction of the high-speed airflow in the first check ring 1132 or the second check ring 1133 is substantially the same as the direction of the airflow flowing out of the first check passage 1134, which reduces the energy loss caused by the direct collision of the high-speed airflow with the inner wall, facilitates the rapid passage of the high-speed gas, and can increase the air volume of the air outlet 1311. When the high-speed gas backflows, the moving direction of the high-speed airflow in the first check ring 1132 or the second check ring 1133 is opposite to the direction of the airflow flowing out of the first check passage 1134. The two directions interfere with each other after converging, which reduces the backflow speed of the high-speed gas.
[0046] Specifically, the first check ring 1132, the second check ring 1133, the third check ring 1332 and the fourth check ring 1334 each comprise an arc segment and a sharp port segment. The arc segment and the sharp port segment communicate with each other. The arc segment is located close to the starting position of the air supply passage 1312 along the extension direction of the air supply passage 1312. The sharp port segment is located close to the air outlet 1311 of the air supply passage 1312 along the extension direction of the air supply passage 1312. The arc segment and the sharp port segment communicate with each other to form a check ring. The arc segment deviates from the check passage, and the sharp port segment is close to the check passage. After the arc segment and the sharp port segment communicate with each other, they are inclined to the check passage. The angle of the inclined arrangement can be flexibly set according to actual requirements.
[0047] To further reduce the energy consumption of the inner wall of the upper cover 110 or the inner wall of the bottom frame 130 to the high-speed airflow, the inner wall of the upper cover 110 corresponding to the air supply channel 1312 has at least two spaced first check mechanisms,
[0048] And / or, the inner wall of the bottom frame 130 corresponding to the air supply channel 1312 has at least two spaced second check mechanisms. The number of first check mechanisms and second check mechanisms is multiple, and the specific number can be designed according to the area of the inner wall, which is not limited here.
[0049] In a specific embodiment, the upper cover 110 includes a cover body 111, a cover body surrounding wall 112, the cover body surrounding wall 112 is arranged on the periphery of the cover body 111, and the first opening 1113 is formed in the cover body surrounding wall 112;
[0050] The bottom frame 130 includes a frame body 131, a frame body surrounding wall 132, the frame body surrounding wall 132 is arranged on the periphery of the frame body 131, and the second opening 1313 is formed in the frame body surrounding wall 132. The above-mentioned air supply channel 1312 is formed in the space surrounded by the periphery of the frame body 131, the frame body surrounding wall 132, the cover body surrounding wall 112, the cover body 111 and the centrifugal fan 120, the cross section of the air supply channel 1312 increases in turn along its starting position to the air outlet 1311, reducing the resistance of the inner wall to the high-speed airflow. In addition, since the upper cover 110 has the cover body surrounding wall 112 and the bottom frame 130 has the frame body surrounding wall 132, when the upper cover 110 covers the bottom frame 130, the cover body surrounding wall 112 contacts with the frame body surrounding wall 132, and the air tightness is good.
[0051] Specifically, the cover body surrounding wall 112 has a butt joint outer edge 1121, and the frame body 131 has a butt joint inner edge 1321, and when the upper cover 110 covers the bottom frame 130, the butt joint outer edge 1121 and the butt joint inner edge 1321 are in surface contact. When the upper cover 110 covers the bottom frame 130, the butt joint outer edge 1121 is inserted into the butt joint inner edge 1321, and the two are in surface contact, the gap at the connection is small, and the air tightness is good.
[0052] In addition, in order to realize the detachable connection of the upper cover 110 and the bottom frame 130, a buckle mechanism 140 is further included, and the upper cover 110 and the bottom frame 130 are connected through the buckle mechanism 140. The above-mentioned buckle mechanism 140 includes a buckle and a buckle opening, the buckle is arranged on the frame body surrounding wall 132 of the bottom frame 130, and the buckle opening is arranged on the cover body surrounding wall 112 of the upper cover 110. When the upper cover 110 and the bottom frame 130 are covered, the buckle and the buckle opening are matched and buckled.
[0053] In the embodiment of the utility model, the turbofan device comprises the above-mentioned novel turbine fan. The specific structure of the turbofan device is referred to the embodiment of the above-mentioned novel turbine fan, which will not be repeated here. Since the turbofan device of the present scheme adopts all the technical solutions of all the embodiments of the above-mentioned novel turbine fan, it at least has all the advantages and beneficial effects brought by the technical solutions of the embodiments of the above-mentioned novel turbine fan, which will not be repeated here.
[0054] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the technical scheme conception of the utility model is included in the patent protection range of the utility model.
Claims
1. A new turbofan characterized by, The new turbine fan comprises: a centrifugal fan wheel; a bottom frame having a mounting portion, wherein the centrifugal fan wheel is detachably assembled in the mounting portion; an upper cover, wherein one side of the upper cover has an air inlet corresponding to the centrifugal fan wheel, and the upper cover is provided with a first opening corresponding to the second opening; when the upper cover is covered on the bottom frame, the upper cover and the bottom frame form a volute, and the first opening and the second opening are connected to form an air outlet of the volute; and a blowing channel is formed between the volute and the outer edge of the centrifugal fan wheel. The inner wall of the bottom frame corresponding to the blowing channel is provided with a Tesla check valve mechanism, or the inner wall of the upper cover corresponding to the blowing channel is provided with a Tesla check valve mechanism, the check valve channel of the Tesla check valve mechanism extends along the extension direction of the blowing channel, the inlet valve port of the check valve channel is located at the starting position of the blowing channel, and the outlet valve port of the check valve channel is located at the air outlet of the blowing channel.
2. The novel turbofan as claimed in claim 1, wherein, The Tesla check valve mechanism comprises a first check mechanism and a second check mechanism, the first check mechanism is located in the inner wall of the upper cover, and the second check mechanism is located in the inner wall of the bottom frame.
3. The novel turbofan as claimed in claim 2, wherein, The Tesla check valve mechanism further comprises a third check mechanism, and the third check mechanism is arranged on the inner wall of the connection between the upper cover and the bottom frame corresponding to the blowing channel.
4. The novel turbofan as claimed in claim 2 or 3, wherein, The first check mechanism comprises a first check channel, a first check ring and a second check ring, the first check channel has a first inlet valve port located at the starting position of the blowing channel and a first outlet valve port located at the air outlet of the blowing channel, the first check ring and the second check ring are respectively located on both sides of the first check channel and are in communication with the first check channel, and the first check ring and the second check ring are staggered. The second check mechanism comprises a second check channel, a third check ring and a fourth check ring, the second check channel has a second inlet valve port located at the starting position of the blowing channel and a second outlet valve port located at the air outlet of the blowing channel, the third check ring and the fourth check ring are respectively located on both sides of the second check channel and are in communication with the second check channel, and the third check ring and the fourth check ring are staggered.
5. The novel turbofan as claimed in claim 4, wherein, The first check ring, the second check ring, the third check ring and the fourth check ring each comprise an arc segment and a sharp port segment, the arc segment and the sharp port segment are in communication, the arc segment is close to the starting position of the blowing channel along the extension direction of the blowing channel, and the sharp port segment is close to the air outlet of the blowing channel along the extension direction of the blowing channel.
6. The novel turbofan as claimed in claim 4, wherein, The inner wall of the upper cover corresponding to the blowing channel has at least two spaced first check mechanisms, and / or, the inner wall of the bottom frame corresponding to the blowing channel has at least two spaced second check mechanisms.
7. The novel turbofan as claimed in claim 4, wherein, The upper cover comprises a cover body and a cover body surrounding wall, the cover body surrounding wall is arranged on the periphery of the cover body, and the first opening is formed in the cover body surrounding wall. The bottom frame comprises a frame body and a frame body surrounding wall, the frame body surrounding wall is arranged on the periphery of the frame body, and the second opening is formed in the frame body surrounding wall.
8. The novel turbofan as claimed in claim 7, wherein, The cover body surrounding wall has a butt joint outer edge, the frame body has a butt joint inner edge, and the butt joint outer edge and the butt joint inner edge are in surface contact when the upper cover is covered on the bottom frame.
9. The novel turbofan as claimed in claim 1, wherein, Further comprising a buckle mechanism, and the upper cover and the bottom frame are connected through the buckle mechanism.
10. A turbofan device, characterized in that, The turbofan device comprises a new type of turbine fan as claimed in any one of claims 1 to 8. The turbofan device comprises a new type of turbine fan as claimed in any one of claims 1 to 8.