Large-air-volume low-noise cross-flow wind wheel

Abstract

The utility model relates to the technical field of cross-flow wind wheels, in particular to a large-air-volume low-noise cross-flow wind wheel which comprises a first middle section structure, a second middle section structure, a top hub and a bottom hub, the first middle section structure and the second middle section structure respectively comprise a first middle plate, one side of each first middle plate is fixedly connected with a plurality of blades, and the other side of each first middle plate is fixedly connected with a plurality of second middle plates. The sides, away from the first middle plate, of the blades are fixedly connected with a second middle plate. The impeller has the advantages that the first middle section structure, the second middle section structure, the top hub, the bottom hub, the first middle plate, the blades, the second middle plate, the fixing plate, the fixing insertion hole, the positioning clamping groove, the mounting groove, the guide rod, the fixing spring, the sliding plate, the hollow fixing insertion rod, the sealing groove and the sealing ring are arranged in a matched mode; when a certain part of the first middle joint structure, the second middle joint structure, the top hub and the bottom hub is damaged, the damaged part can be conveniently detached and replaced, the whole cross-flow wind wheel does not need to be replaced, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-flow wind wheels, in particular to a cross-flow wind wheel with large air volume and low noise. Background Art

[0002] A crossflow fan is also called a crossflow fan. It is mainly composed of three parts: an impeller, an air duct and an electric motor. The impeller is also called a wind wheel. The wind wheel of a crossflow fan is multi-bladed, long cylindrical, and has forward multi-wing blades. When the wind wheel rotates, the airflow enters the blade grid from the open part of the wind wheel, passes through the inside of the wind wheel, and is discharged into the volute from the other side of the blade grid to form a working airflow.

[0003] The structure of the current cross-flow impeller is composed of multiple middle sections, which are connected together by welding. It is impossible to disassemble a certain middle section separately. When a middle section of the cross-flow impeller is damaged, the entire cross-flow impeller structure needs to be replaced, which increases the maintenance cost. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a crossflow impeller with large air volume and low noise, so as to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present invention provides a crossflow impeller with large air volume and low noise, including a first middle section structure, a second middle section structure, a top hub and a bottom hub, the first middle section structure and the second middle section structure both including a first middle plate, one side of the first middle plate is fixedly connected to a plurality of blades, and a side of the plurality of blades away from the first middle plate is fixedly connected to a second middle plate, one side of the top hub and the second middle plate is fixedly connected to two fixing plates, one side of the two fixing plates is provided with a fixing plug hole, one side of the first middle plate and the bottom hub is provided with two positioning slots, the outer surfaces of the first middle plate and the bottom hub are provided with two mounting slots, the inner walls of the two mounting slots are fixedly connected with a guide rod and a fixing spring, the outer surfaces of the two guide rods are slidably connected with a slide, one side of the two slides is fixedly connected to a hollow fixing rod, one side of the second middle plate and the top hub is provided with a sealing groove, and one side of the first middle plate and the bottom hub is fixedly connected to a sealing ring.

[0007] Preferably, any of the above schemes is that the inner wall of the sealing groove is fixedly connected with sound-absorbing cotton, and the inner wall of the second middle plate is provided with a plurality of sound-absorbing holes.

[0008] Preferably, one side of the blade is provided with a plurality of ventilation slots.

[0009] Preferably, any of the above solutions has the following characteristics: the positions of the fixing plate and the positioning slot correspond to each other, and the sizes of the fixing plate and the positioning slot are adapted to each other.

[0010] Preferably, any of the above schemes is that a portion of the guide rod is located inside the fixed spring, the end of the fixed spring away from the inner wall of the mounting groove is fixedly connected to the slide, a portion of the guide rod is located inside the hollow fixed plug, the hollow fixed plug is slidably connected to the guide rod, and the hollow fixed plug is adapted to the size of the fixed socket.

[0011] Preferably, any of the above schemes is that the positions of the sealing ring and the sealing groove correspond to each other, the sizes of the sealing ring and the sealing groove are adapted to each other, and the sum of the height of the sealing ring and the thickness of the sound-absorbing cotton is equal to the depth of the sealing groove.

[0012] Preferably, in any of the above solutions, the number of blades included in the first middle section structure is different from the number of blades included in the second middle section structure.

[0013] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0014] 1. Through the coordinated arrangement of the first middle section structure, the second middle section structure, the top hub, the bottom hub, the first middle plate, the blades, the second middle plate, the fixing plate, the fixing socket, the positioning slot, the mounting slot, the guide rod, the fixing spring, the slide plate, the hollow fixing rod, the sealing groove and the sealing ring, when a part of the first middle section structure, the second middle section structure, the top hub and the bottom hub is damaged, it is convenient to remove the damaged part and replace it, so there is no need to replace the entire crossflow impeller, thereby reducing the replacement cost, and making the installation and disassembly of the first middle section structure, the second middle section structure, the top hub and the bottom hub simple, thereby improving the efficiency of replacing the first middle section structure, the second middle section structure, the top hub and the bottom hub.

[0015] 2. The number of blades included in the first middle section structure is different from the number of blades included in the second middle section structure, which can stagger the pressure changes generated in the gap between the first middle section structure with different numbers of blades and the second middle section structure and the leading edge of the volute tongue and the wind wheel shell, and at the same time stagger the blade rotation frequency noise, thereby reducing the noise generated by the modified cross flow wind wheel during operation, and through the coordinated arrangement with sound-absorbing cotton and sound-absorbing holes, it can absorb the noise generated by the modified cross flow wind wheel during operation, so that the noise reduction effect of the cross flow wind wheel is better and the noise of the cross flow wind wheel is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2This is a schematic structural diagram of the second middle section structure and its connecting components from a first perspective of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the second middle section structure and its connecting components from a second perspective of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the top hub and its connecting components of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the bottom hub and its connecting components of the utility model;

[0021] Figure 6 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0022] In the figure: 1-first middle section structure, 2-second middle section structure, 3-top hub, 4-bottom hub, 5-first middle plate, 6-blades, 7-second middle plate, 8-fixing plate, 9-fixing socket, 10-positioning slot, 11-mounting slot, 12-guide rod, 13-fixing spring, 14-slide plate, 15-hollow fixed rod, 16-sealing groove, 17-sealing ring, 18-sound-absorbing cotton, 19-sound-absorbing hole, 20-ventilation slot. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] like Figures 1 to 6 As shown, the utility model provides a large air volume and low noise cross-flow wind wheel, including a first middle section structure 1, a second middle section structure 2, a top hub 3 and a bottom hub 4. The first middle section structure 1 and the second middle section structure 2 both include a first middle plate 5, one side of the first middle plate 5 is fixedly connected to a plurality of blades 6, and the side of the plurality of blades 6 away from the first middle plate 5 is fixedly connected to a second middle plate 7, one side of the top hub 3 and the second middle plate 7 are both fixedly connected to two fixing plates 8, and one side of the two fixing plates 8 is provided with a fixing hole 9. Two positioning slots 10 are provided on one side of the middle plate 5 and the bottom hub 4, and two mounting grooves 11 are provided on the outer surfaces of the first middle plate 5 and the bottom hub 4. The inner walls of the two mounting grooves 11 are fixedly connected with guide rods 12 and fixed springs 13, and the outer surfaces of the two guide rods 12 are slidably connected with slides 14. One side of the two slides 14 is fixedly connected with a hollow fixed rod 15. A sealing groove 16 is provided on one side of the second middle plate 7 and the top hub 3, and a sealing ring 17 is fixedly connected to one side of the first middle plate 5 and the bottom hub 4.

[0025] When connecting the first middle section structure 1 and the second middle section structure 2, first pull the slide plate 14 to drive the hollow fixed rod 15 to move, so that the hollow fixed rod 15 is removed from the inside of the positioning slot 10. At this time, the fixing spring 13 is in a compressed state. Then the fixing plate 8 is inserted into the inside of the positioning slot 10. At this time, the sealing ring 17 is inserted into the inside of the sealing groove 16. At this time, the hollow fixed rod 15 corresponds to the position of the fixed socket 9. Then slowly release the slide plate 14, and under the reaction force of the fixing spring 13, the hollow fixed rod 15 is inserted into the inside of the fixed socket 9, thereby completing the operation of connecting the first middle section structure 1 and the second middle section structure 2. Similarly, the operation of connecting the second middle section structure 2 and the bottom hub 4 and the operation of connecting the first middle section structure 2 and the top hub 3 are the same as the operation of connecting the first middle section structure 1 and the second middle section structure 2.

[0026] As an optional technical solution of the present invention, the inner wall of the sealing groove 16 is fixedly connected with a sound-absorbing cotton 18, and the inner wall of the second middle plate 7 is provided with a plurality of sound-absorbing holes 19, which are connected to the sealing groove 16. Noise can be absorbed through the sound-absorbing holes 19 and the sound-absorbing cotton 18.

[0027] As an optional technical solution of the present invention, a plurality of ventilation slots 20 are provided on one side of the blade 6. The ventilation slots 20 starting from the blade 6 can realize stepped air discharge while breaking up the vortex, and can disperse the airflow, increase the contact area with the airflow, thereby increasing the air volume, so that the air volume generated by the cross-flow impeller is larger.

[0028] As an optional technical solution of the present invention, the position of the fixing plate 8 corresponds to that of the positioning slot 10 , and the size of the fixing plate 8 is adapted to that of the positioning slot 10 , so that the fixing plate 8 can be smoothly inserted into the interior of the positioning slot 10 .

[0029] As an optional technical solution of the present invention, a portion of the guide rod 12 is located inside the fixed spring 13, and the end of the fixed spring 13 away from the inner wall of the mounting groove 11 is fixedly connected to the slide plate 14. A portion of the guide rod 12 is located inside the hollow fixed plug rod 15, and the hollow fixed plug rod 15 is slidingly connected to the guide rod 12. The hollow fixed plug rod 15 is adapted to the size of the fixed socket 9, so that the hollow fixed plug rod 15 can be smoothly moved and inserted into the interior of the fixed socket 9.

[0030] As an optional technical solution of the present invention, the position of the sealing ring 17 corresponds to that of the sealing groove 16, the size of the sealing ring 17 is adapted to that of the sealing groove 16, and the sum of the height of the sealing ring 17 and the thickness of the sound-absorbing cotton 18 is equal to the depth of the sealing groove 16, so that the sealing ring 17 can be smoothly inserted into the interior of the sealing groove 16, and the sealing effect of the sealing groove 16 is relatively good.

[0031] As an optional technical solution of the present invention, the number of blades 6 included in the first middle section structure 1 is different from the number of blades 6 included in the second middle section structure 2 .

[0032] The utility model provides a large air volume and low noise cross flow impeller, which connects the first middle section structure 1 and the second middle section structure 2 and has the following working principle:

[0033] 1) Pull the slide 14 to move the hollow fixed rod 15, so that the hollow fixed rod 15 is removed from the interior of the positioning slot 10. At this time, the fixing spring 13 is in a compressed state;

[0034] 2) The fixing plate 8 is inserted into the interior of the positioning slot 10. At this time, the sealing ring 17 is inserted into the interior of the sealing groove 16, and the position of the hollow fixing rod 15 corresponds to the position of the fixing hole 9;

[0035] 3) Slowly release the slide plate 14 and insert the hollow fixed rod 15 into the fixed insertion hole 9 under the reaction force of the fixed spring 13, thereby completing the operation of connecting the first middle section structure 1 and the second middle section structure 2.

[0036] Similarly, the operation of connecting the second middle section structure 2 and the bottom hub 4 and connecting the first middle section structure 2 and the top hub 3 is the same as the working principle of connecting the first middle section structure 1 and the second middle section structure 2.

[0037] In summary, the crossflow impeller with large air volume and low noise is provided with the cooperation of the first middle section structure 1, the second middle section structure 2, the top hub 3, the bottom hub 4, the first middle plate 5, the blades 6, the second middle plate 7, the fixing plate 8, the fixing socket 9, the positioning slot 10, the installation slot 11, the guide rod 12, the fixing spring 13, the slide plate 14, the hollow fixing plug rod 15, the sealing groove 16 and the sealing ring 17. When a part of the first middle section structure 1, the second middle section structure 2, the top hub 3 and the bottom hub 4 is damaged, it is convenient to remove the damaged part and replace it, so there is no need to replace the entire crossflow impeller, which reduces the replacement cost and makes it easy to install and disassemble the first middle section structure 1, the second middle section structure 2, the top hub 3 and the bottom hub 4. The hub 4 is easy to operate, which improves the efficiency of replacing the first middle section structure 1, the second middle section structure 2, the top hub 3 and the bottom hub 4. The number of blades 6 included in the first middle section structure 1 is different from the number of blades 6 included in the second middle section structure 2, which can stagger the pressure changes generated in the gap between the first middle section structure 1 and the second middle section structure 2 with different numbers of blades 6 and the leading edge of the volute tongue and the wind wheel shell, and at the same time, stagger the rotation frequency noise of the blades 6, thereby reducing the noise generated by the modified cross-flow wind wheel during operation, and through the coordinated arrangement with the sound-absorbing cotton 18 and the sound-absorbing holes 19, it can absorb the noise generated by the modified cross-flow wind wheel during operation, so that the noise reduction effect of the cross-flow wind wheel is better, and the noise of the cross-flow wind wheel is lower.

Claims

1. A crossflow impeller with large air volume and low noise, characterized by: The invention comprises a first middle section structure (1), a second middle section structure (2), a top wheel hub (3) and a bottom wheel hub (4); the first middle section structure (1) and the second middle section structure (2) both comprise a first middle plate (5); a plurality of blades (6) are fixedly connected to one side of the first middle plate (5); a second middle plate (7) is fixedly connected to one side of the plurality of blades (6) away from the first middle plate (5); two fixing plates (8) are fixedly connected to one side of the top wheel hub (3) and the second middle plate (7); a fixing socket (9) is provided on one side of the two fixing plates (8); a fixing socket (9) is provided on one side of the first middle plate (5) and the bottom wheel hub (4); Two positioning slots (10) are provided on the sides, two installation slots (11) are provided on the outer surfaces of the first middle plate (5) and the bottom wheel hub (4), the inner walls of the two installation slots (11) are fixedly connected with guide rods (12) and fixing springs (13), the outer surfaces of the two guide rods (12) are slidably connected with slide plates (14), one side of the two slide plates (14) is fixedly connected with a hollow fixing rod (15), one side of the second middle plate (7) and the top wheel hub (3) is provided with a sealing groove (16), and one side of the first middle plate (5) and the bottom wheel hub (4) is fixedly connected with a sealing ring (17).

2. A large air volume and low noise crossflow impeller according to claim 1, characterized in that: The inner wall of the sealing groove (16) is fixedly connected with a sound-absorbing cotton (18), and the inner wall of the second middle plate (7) is provided with a plurality of sound-absorbing holes (19).

3. A large air volume and low noise crossflow impeller according to claim 2, characterized in that: A plurality of ventilation slots (20) are provided on one side of the blade (6).

4. A large air volume and low noise crossflow impeller according to claim 3, characterized in that: The positions of the fixing plate (8) and the positioning slot (10) correspond to each other, and the sizes of the fixing plate (8) and the positioning slot (10) are adapted to each other.

5. A large air volume and low noise crossflow impeller according to claim 4, characterized in that: A portion of the guide rod (12) is located inside the fixed spring (13); one end of the fixed spring (13) away from the inner wall of the mounting groove (11) is fixedly connected to the slide plate (14); a portion of the guide rod (12) is located inside the hollow fixed plug rod (15); the hollow fixed plug rod (15) is slidably connected to the guide rod (12); and the size of the hollow fixed plug rod (15) is adapted to that of the fixed plug hole (9).

6. A large air volume and low noise crossflow impeller according to claim 5, characterized in that: The sealing ring (17) corresponds to the position of the sealing groove (16), the sealing ring (17) is adapted to the size of the sealing groove (16), and the sum of the height of the sealing ring (17) and the thickness of the sound-absorbing cotton (18) is equal to the depth of the sealing groove (16).

7. A large air volume and low noise crossflow impeller according to claim 6, characterized in that: The number of blades (6) included in the first middle section structure (1) is different from the number of blades (6) included in the second middle section structure (2).

Images