A side-mounted micro-thin high-efficiency energy-saving centrifugal fan

Abstract

The application discloses a kind of side-mounted micro-thin high-efficiency energy-saving centrifugal fan, it is related to centrifugal fan technical field;Specific volute, the two sides of the volute are fixedly installed with side shell, and the side of side shell is provided with air inlet, the front of the volute is provided with air nozzle, the back of volute four corners is fixedly installed with L type piece, for wind from the air inlet of the two sides of side shell is introduced into volute, then by air nozzle is exported simultaneously, fixed part, fixed part is fixedly connected with the outside of side shell by bolt, the same end of every three fixed parts is welded with same mounting seat, the side of mounting seat is fixedly installed with fixed box, rotating mechanism, the two sides of the volute inner wall are provided with rotating groove, and every rotating groove is rotatably connected with centrifugal fan wheel.The application effectively solves the problem of low efficiency of single centrifugal fan in the existing device, improves the practicability, and not only recycles energy consumption, but also achieves the effect of environmental protection and energy saving, improves the utilization rate of overall structure.

Description

Technical Field

[0001] This invention relates to the field of centrifugal fan technology, and in particular to a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan. Background Technology

[0002] Side-mounted, slim, high-efficiency, energy-saving centrifugal fans are a new type of fan equipment widely used in HVAC (Heating, Ventilation, and Air Conditioning), industrial ventilation, and other applications requiring efficient airflow management. The compact structure of side-mounted, slim centrifugal fans effectively saves installation space, while their slim design significantly reduces wind resistance and improves airflow efficiency during operation. Compared to traditional centrifugal fans, they consume less electricity under the same airflow conditions, thus achieving energy conservation and consumption reduction. Side-mounted, slim, high-efficiency, energy-saving centrifugal fans have also made significant progress in noise control. By optimizing the impeller design and airflow path, the noise generated during operation is greatly reduced, meeting the stringent noise requirements of modern buildings and industrial environments. This has led to their widespread application in commercial buildings, residential areas, and special locations requiring quiet environments (such as hospitals and libraries). Furthermore, with the development of intelligent technology, many new fans also possess intelligent monitoring and adjustment functions, automatically adjusting operating parameters according to actual needs, further improving energy utilization efficiency.

[0003] A search revealed Chinese Patent Publication No. CN222162954U, which discloses a centrifugal fan and a centrifugal fan mounting bracket. The centrifugal fan and mounting bracket include a centrifugal fan, a mounting bracket, a base at the bottom of the mounting bracket, a first fixed plate rotatably mounted on the top of the base, a left support frame and a right support frame on the top of the first fixed plate, a first bearing on the top of the left support frame, and a second bearing on the top of the right support frame. A connecting sleeve is located on one side of the centrifugal fan and connects to the second bearing. A motor is located on the other side of the centrifugal fan, and a connecting shaft is located on one side of the motor. A second fixed plate is mounted on the connecting shaft and connects to the first bearing. A limiting block is located at the bottom of the first bearing on the left support frame. Both the first and second fixed plates have several through holes arranged in a circular array along their axes. A first fixing pin is located on the first fixed plate, and a second fixing pin is located on the limiting block. A fixing hole is located on the top of the base. The centrifugal fan and centrifugal fan mounting bracket described above have the following shortcomings: While the aforementioned device facilitates the adjustment of the centrifugal fan's angle, thereby allowing for adjustment of the fan's airflow direction as needed, its overall structure not only occupies excessive space, reducing loading and unloading efficiency, but also employs a single centrifugal impeller, resulting in low efficiency. Therefore, there is an urgent need for a side-mounted, slim, high-efficiency, and energy-saving centrifugal fan. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A side-mounted, slim, high-efficiency, energy-saving centrifugal fan includes: The volute has side shells fixedly installed on both sides, and an air inlet is provided on one side of the side shell. A nozzle is provided on the front of the volute, and L-shaped parts are fixedly installed at the four corners of the back of the volute to introduce air into the volute from the air inlets on both sides of the side shell, and then simultaneously exhaust it through the nozzles. The fasteners are fixedly connected to the outside of the side housing by bolts. The same mounting base is welded to the same end of every three fasteners, and a fixing box is fixedly installed on one side of the mounting base. The rotating mechanism has rotating grooves on the inner walls of both sides of the volute, and a centrifugal impeller is rotatably connected in each rotating groove. The rotating mechanism is set on one side opposite to the two centrifugal impellers to efficiently drive the two centrifugal impellers to complete the air guiding work.

[0006] Preferably, the rotating mechanism includes a limiting ring, an annular groove, a connecting ring, a mounting hole, a servo motor, a support plate, a vertical gear set, a main gear, a secondary gear, and a sliding ring. The servo motor is fixedly installed inside one of the fixed boxes. The vertical gear set consists of two vertically meshing helical gears. The output end of the servo motor is fixedly connected to one of the helical gears.

[0007] Furthermore: the support plate is fixedly installed on the inner side of the fixed box, the main gear is rotatably connected to one end of the support plate, and the inner shaft of the main gear is fixedly connected to the inner circumference of another helical gear, and the secondary gear meshes with one side of the main gear.

[0008] Based on the aforementioned scheme: the limiting ring is fixedly connected to one side of the fixed box, and the annular groove is opened on the inner side of the limiting ring. The sliding ring is slidably connected in the annular groove. The connecting ring is fixedly connected to one side of the sliding ring. The inner shaft of the secondary gear is fixedly passed through the center of the connecting ring. The mounting holes are equally spaced on one side of the circumference of the connecting ring, and a guide assembly is provided in the mounting hole. The guide assembly is fixedly connected to the blade of the centrifugal impeller.

[0009] A preferred embodiment of the aforementioned scheme is that the rotating mechanism further includes a generator box, a second vertical gear set, a second support plate, a guide shaft, a pinion, and a large gear, with the large gear fixedly connected to the circumference of the inner shaft end of the secondary gear, the second support plate fixedly connected to the inner wall of another fixed box, and the pinion rotatably connected to one end of the second support plate.

[0010] As a further embodiment of the present invention: the small gear and the large gear mesh with each other, the vertical gear set II is composed of two vertically meshing helical gears II, one of which is fixedly installed on the inner circumference of the small gear shaft, and the generator box is fixedly installed on the inner wall of another fixed box.

[0011] Meanwhile, the generator box contains a generator, and the guide shaft is connected to the generator end shaft inside the generator box via a coupling, and another helical gear is fixedly installed on the circumference of the guide shaft.

[0012] As a preferred embodiment of the present invention, the guide assembly includes a fixing block, a telescopic spring, a fixing hole, a mounting block, a guide groove, and a connecting rod, wherein the fixing block is slidably connected to the mounting hole and the mounting block is fixedly mounted on one side of the fixing block.

[0013] Meanwhile, the fixing hole is opened on one side of the mounting block, and one end of the fan blade inside the centrifugal impeller is fixedly installed in the fixing hole, while the other end rotates horizontally inside the outer frame of the centrifugal impeller. The telescopic spring is fixedly connected between the two fixing blocks, the guide groove is opened on the top of the fixing block, and the connecting rod is limited and slidably connected in the two guide grooves.

[0014] As a preferred embodiment of the present invention: a wind speed sensor is fixedly installed on the inner side of the volute, a controller is fixedly installed on one side of the side shell, and a maintenance kit is fixedly installed on the side of the side shell near the controller.

[0015] The beneficial effects of this invention are as follows: 1. This side-mounted, slim, high-efficiency, and energy-saving centrifugal fan drives a vertical gear set to rotate via a servo motor, which in turn drives the main gear and secondary gear to rotate. Since the main gear is larger than the secondary gear, the secondary gear rotates at a higher speed than the main gear, thereby driving the two centrifugal impellers to rotate. The tight fit of the two connecting rings enhances the air guiding efficiency of the overall structure, effectively solving the problem of low efficiency of a single centrifugal impeller in existing devices, thus improving practicality.

[0016] 2. This side-mounted, thin, high-efficiency, energy-saving centrifugal fan, when the secondary gear rotates, drives the large gear at the tail end of its inner shaft to rotate, which in turn drives the small gear to operate, and through the vertical gear set two, enables the generator in the generator box to work. Since the rotation speed of the small gear is greater than that of the large gear, the device achieves power generation and energy storage while operating, which not only recovers energy consumption, but also achieves the effect of environmental protection and energy saving, and improves the utilization rate of the overall structure.

[0017] 3. This side-mounted, slim, high-efficiency, and energy-saving centrifugal fan features a fixed block that slides within the mounting hole via a telescopic spring when the centrifugal impeller rotates. Simultaneously, the connecting rod slides horizontally within the guide groove. This design effectively alleviates the centrifugal tension on the impeller blades, protects the blades, ensures operational stability, and extends service life. Attached Figure Description

[0018] Figure 1 This is a right-side view of the structure of a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention. Figure 2 This is a schematic diagram of the left-side structure of a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention. Figure 3 This is a schematic diagram of the main structure of a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention. Figure 4 This is a schematic diagram of the internal structure of a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention. Figure 5 This is a schematic diagram of the rotating mechanism in a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention. Figure 6 This is a partial structural diagram of the rotating mechanism in a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention; Figure 7 This is a schematic diagram of the conductive assembly in a side-mounted, thin, high-efficiency, and energy-saving centrifugal fan proposed in this invention.

[0019] In the diagram: 1. Side casing; 2. Nozzle; 3. Wind speed sensor; 4. Volute; 5. Controller; 6. Repair kit; 7. Mounting base; 8. Centrifugal impeller; 9. Fixture; 10. Rotating mechanism; 11. Fixing box; 1001. Limiting ring; 1002. Annular groove; 1003. Connecting ring; 1004. Mounting hole; 1005. Servo motor; 1006. Support plate one; 1007. Vertical gear set one; 10 08. Main gear; 1009. Secondary gear; 1010. Sliding ring; 1011. Generator box; 1012. Vertical gear set two; 1013. Support plate two; 1014. Guide shaft; 1015. Pinion; 1016. Large gear; 10041. Fixing block; 10042. Telescopic spring; 10043. Fixing hole; 10044. Mounting block; 10045. Guide groove; 10046. Connecting rod. Detailed Implementation

[0020] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] A side-mounted, slim, high-efficiency, energy-saving centrifugal fan, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it includes a volute 4, with side housings 1 fixedly installed on both sides of the volute 4. An air inlet is provided on one side of the side housing 1. A nozzle 2 is provided on one side of the front of the volute 4. A wind speed sensor 3 is fixedly installed on the inner side of the volute 4. A fixing member 9 is fixed to the outer side of the side housing 1 by bolts. The same mounting base 7 is welded to the same end of every three fixing members 9. The model of the wind speed sensor 3 is HRTS-01. A fixed box 11 is fixedly installed on one side of the mounting base 7. Rotating grooves are opened on the inner walls of both sides of the volute 4, and centrifugal impellers 8 are rotatably connected in each rotating groove. A rotating mechanism 10 is set on one side of the two centrifugal impellers 8. L-shaped parts are fixedly installed at the four corners of the back of the volute 4. The L-shaped parts facilitate the loading and unloading of the whole device and reduce the installation area of ​​the whole device. A controller 5 is fixedly installed on one side of the side shell 1, and a maintenance kit 6 is fixedly installed on the side of the side shell 1 near the controller 5. The controller 5 is model ATV312HU75N4.

[0025] To address the low efficiency issue of existing devices using a single centrifugal impeller; such as... Figure 5 , Figure 6As shown, the rotating mechanism 10 includes a limiting ring 1001, an annular groove 1002, a connecting ring 1003, a mounting hole 1004, a servo motor 1005, a support plate 1006, a vertical gear set 1007, a main gear 1008, a secondary gear 1009, and a sliding ring 1010. The servo motor 1005 is fixedly installed inside one of the fixed boxes 11. The vertical gear set 1007 is composed of two vertically meshing helical gears. The output end of the servo motor 1005 is fixedly connected to one of the helical gears. The support plate 1006 is fixedly installed on the inner side of the fixed box 11. The main gear 1008 is rotatably connected to one end of the support plate 1006, and the inner shaft of the main gear 1008 is fixedly connected to the inner circumference of another helical gear. The secondary gear 1009 meshes with one side of the main gear 1008. The limiting ring 1001 is fixedly connected to one side of the fixed box 11, and the annular groove 1002 is opened inside the limiting ring 1001. The sliding ring 1010 is slidably connected in the annular groove 1002. The connecting ring 1003 is fixedly connected to one side of the sliding ring 1010. The inner shaft of the secondary gear 1009 is fixedly passed through the center of the connecting ring 1003. The mounting holes 1004 are equally spaced on one side of the circumference of the connecting ring 1003. A guide assembly is provided in the mounting hole 1004. The guide assembly is fixedly connected to the blade of the centrifugal impeller 8. During operation, the servo motor 1005 is started to drive the vertical gear set 1007 to rotate. The rotating vertical gear set 1007 drives the main gear 1008 to rotate, and the main gear 1008 drives the secondary gear 1009 to rotate. The main gear 1008 is larger than the secondary gear 1009. Since the two connecting rings 1003 are in close contact with each other, the rotating secondary gear 1009 drives the two centrifugal impellers 8 to rotate. Moreover, the rotation speed of the secondary gear 1009 is greater than that of the main gear 1008, which enhances the air guiding efficiency of the overall structure. This solves the problem of low efficiency when using a single centrifugal impeller 8 in existing devices and improves practicality.

[0026] The rotating mechanism 10 also includes a generator box 1011, a second vertical gear set 1012, a second support plate 1013, a guide shaft 1014, a pinion 1015, and a large gear 1016. The large gear 1016 is fixedly connected to the circumference of the inner shaft end of the secondary gear 1009. The second support plate 1013 is fixedly connected to the inner wall of another fixed box 11, and the pinion 1015 is rotatably connected to one end of the second support plate 1013. The pinion 1015 meshes with the gear 1016. The vertical gear set 2 1012 consists of two vertically meshing helical gears 2. One of the helical gears 2 is fixedly installed on the inner circumference of the pinion 1015. The generator box 1011 is fixedly installed on the inner wall of another fixed box 11. The generator box 1011 contains a generator, and the guide shaft 1014 is connected to the generator end shaft inside the generator box 1011 through a coupling. The other helical gear 2 is fixedly installed on the circumference of the guide shaft 1014. In addition to the generator, the generator box 1011 also contains several key components, such as a frequency converter, a battery pack, and a voltmeter. The power generation process is existing technology and will not be described in detail in this embodiment. When the secondary gear 1009 rotates, it drives the large gear 1016 at the end of its inner shaft to rotate. The rotating large gear 1016 drives the small gear 1015 to rotate, and through the vertical gear set 2 1012, it drives the generator in the generator box 1011 to work. The rotation speed of the small gear 1015 is greater than that of the large gear 1016. Thus, while the whole device is working, it simultaneously realizes power generation and energy storage. This not only realizes the recycling of energy consumption, but also achieves environmental protection and energy saving, and improves the utilization rate of the overall structure.

[0027] To ensure the safety of the internal blades of the centrifugal impeller 8; such as... Figure 7 As shown, the guide assembly includes a fixing block 10041, a telescopic spring 10042, a fixing hole 10043, a mounting block 10044, a guide groove 10045, and a connecting rod 10046. The fixing block 10041 is slidably connected to the mounting hole 1004, and the mounting block 10044 is fixedly installed on one side of the fixing block 10041. The fixing hole 10043 is opened on one side of the mounting block 10044, and one end of the fan blade in the centrifugal impeller 8 is fixedly installed in the fixing hole 10043, while the other end rotates horizontally inside the outer frame of the centrifugal impeller 8. The telescopic spring 10042 is fixedly connected between the two fixing blocks 10041, the guide groove 10045 is opened on the top of the fixing block 10041, and the connecting rod 10046 is limited and slidably connected to the two guide grooves 10045. When the centrifugal impeller 8 rotates, the fixed block 10041 can slide within the mounting hole 1004 through the telescopic spring 10042, and at the same time, it can slide horizontally within the guide groove 10045 with the help of the connecting rod 10046. This can effectively relieve the centrifugal tension of the blades inside the centrifugal impeller 8, protect the blades inside the centrifugal impeller 8, ensure its working stability, and extend its service life.

[0028] Working principle: The servo motor 1005 is started to drive the vertical gear set 1007 to rotate. The vertical gear set 1007 drives the main gear 1008 to rotate. Since the main gear 1008 is larger than the secondary gear 1009, the main gear 1008 drives the secondary gear 1009 to rotate at a faster speed. Also, because the two connecting rings 1003 are in contact with each other, the secondary gear 1009 drives the two centrifugal impellers 8 to rotate, improving the overall air guiding efficiency. At the same time, the rotation of the secondary gear 1009 drives the large gear 1016 at the end of its inner shaft to rotate. The large gear 1016 drives the small gear 1015 to rotate at a faster speed. And through the vertical gear set 2 1012, it drives the generator in the generator box 1011 to work, realizing synchronous power generation and energy storage. When the centrifugal impellers 8 are rotating, the fixed block 10041 slides within the mounting hole 1004 with the help of the telescopic spring 10042. The connecting rod 10046 slides horizontally within the guide groove 10045, which relieves the centrifugal tension of the blades in the centrifugal impellers 8 and protects the blades.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A side-mounted, slim, high-efficiency, energy-saving centrifugal fan, characterized in that, include: The volute (4) has side shells (1) fixedly installed on both sides, and an air inlet is provided on one side of the side shell (1). A nozzle (2) is provided on the front of the volute (4), and L-shaped parts are fixedly installed at the four corners of the back of the volute (4) to introduce air into the volute (4) from the air inlets on both sides of the side shell (1) and then simultaneously out through the nozzles (2). The fastener (9) is fixedly connected to the outside of the side shell (1) by bolts. The same mounting base (7) is welded to the same end of every three fasteners (9). A fixing box (11) is fixedly installed on one side of the mounting base (7). Rotating mechanism (10): Rotating grooves are provided on the inner walls of both sides of the volute (4), and centrifugal impellers (8) are rotatably connected in each rotating groove. The rotating mechanism (10) is set on the opposite side of the two centrifugal impellers (8) to efficiently drive the two centrifugal impellers (8) to complete the air guiding work. The rotating mechanism (10) includes a limiting ring (1001), an annular groove (1002), a connecting ring (1003), a mounting hole (1004), a servo motor (1005), a support plate (1006), a vertical gear set (1007), a main gear (1008), a secondary gear (1009), and a sliding ring (1010). The servo motor (1005) is fixedly installed inside one of the fixed boxes (11). The vertical gear set (1007) is composed of two vertically meshing helical gears. The output end of the servo motor (1005) is fixedly connected to one of the helical gears. The limiting ring (1001) is fixedly connected to one side of the fixed box (11), and the annular groove (1002) is opened inside the limiting ring (1001). The sliding ring (1010) is slidably connected inside the annular groove (1002). The connecting ring (1003) is fixedly connected to one side of the sliding ring (1010). The inner shaft of the secondary gear (1009) is fixedly passed through the center of the connecting ring (1003). The mounting holes (1004) are equally spaced on one side of the circumference of the connecting ring (1003). A guide assembly is provided inside the mounting hole (1004). The guide assembly is fixedly connected to the blade of the centrifugal impeller (8). The guide assembly includes a fixing block (10041), a telescopic spring (10042), a fixing hole (10043), a mounting block (10044), a guide groove (10045), and a connecting rod (10046). The fixing block (10041) is slidably connected to the mounting hole (1004), and the mounting block (10044) is fixedly installed on one side of the fixing block (10041). The fixing hole (10043) is opened on one side of the mounting block (10044), and one end of the fan blade in the centrifugal impeller (8) is fixedly installed in the fixing hole (10043), while the other end rotates horizontally inside the outer frame of the centrifugal impeller (8). The telescopic spring (10042) is fixedly connected between the two fixing blocks (10041), the guide groove (10045) is opened on the top of the fixing block (10041), and the connecting rod (10046) is limited and slidably connected in the two guide grooves (10045).

2. The side-mounted, slim, high-efficiency, energy-saving centrifugal fan according to claim 1, characterized in that, The support plate (1006) is fixedly installed on the inner side of the fixed box (11). The main gear (1008) is rotatably connected to one end of the support plate (1006), and the inner shaft of the main gear (1008) is fixedly connected to the inner circumference of another helical gear. The secondary gear (1009) meshes with one side of the main gear (1008).

3. A side-mounted, slim, high-efficiency, energy-saving centrifugal fan according to claim 1, characterized in that, The rotating mechanism (10) also includes a generator box (1011), a second vertical gear set (1012), a second support plate (1013), a guide shaft (1014), a pinion (1015) and a large gear (1016), with the large gear (1016) fixedly connected to the circumference of the inner shaft end of the secondary gear (1009), the second support plate (1013) fixedly connected to the inner wall of another fixed box (11), and the pinion (1015) rotatably connected to one end of the second support plate (1013).

4. A side-mounted, slim, high-efficiency, energy-saving centrifugal fan according to claim 3, characterized in that, The pinion (1015) meshes with the gear (1016), and the vertical gear set (1012) consists of two vertically meshing helical gears, one of which is fixedly installed on the inner circumference of the pinion (1015), and the generator box (1011) is fixedly installed on the inner wall of another fixed box (11).

5. A side-mounted, slim, high-efficiency, energy-saving centrifugal fan according to claim 3, characterized in that, The generator box (1011) contains a generator, and the guide shaft (1014) is connected to the generator end shaft inside the generator box (1011) via a coupling, and another helical gear is fixedly installed on the circumference of the guide shaft (1014).

6. A side-mounted, slim, high-efficiency, energy-saving centrifugal fan according to claim 1, characterized in that, A wind speed sensor (3) is fixedly installed on the inner side of the volute (4), a controller (5) is fixedly installed on one side of the side shell (1), and a maintenance kit (6) is fixedly installed on the side of the side shell (1) near the controller (5).

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