Inner fan mounting structure for centrifugal fan

Abstract

The utility model discloses an inner fan mounting structure for a centrifugal fan, which comprises an air conditioner body, fixing plates are symmetrically and fixedly mounted on the top of the air conditioner body, a fixed connecting plate is mounted between the two fixing plates, and the fixing plates are fixed on two sides of the top of the air conditioner body in advance. The two inner fan bodies are fixed to the fixed connecting plate, the fixed connecting plate is installed between the two fixing plates, installation of the inner fan bodies is facilitated, and when the inner fan bodies are taken down for maintenance, the fixed connecting plate is taken out from the position between the two fixing plates, so that disassembly and maintenance of the inner fan bodies are facilitated; the positioning blocks are inserted into the positioning through holes, installation between the fixing connecting plates and the fixing plates is facilitated, then the fixing connecting plates slide out of the positioning through holes, positioning of the positioning blocks on the fixing connecting plates is cancelled, the fixing connecting plates are lifted and taken out from the position between the two fixing plates, and the fixing connecting plates are convenient to detach.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning centrifugal fan installation technology, specifically to an internal fan installation structure for centrifugal fans. Background Technology

[0002] Centrifugal fans for air conditioning are a new type of energy-saving, high-efficiency, variable-speed, low-noise centrifugal ventilator. This type of fan has a compact structure, is easy to install, small in size, has a large air volume, and high pressure. It can evenly deliver hot or cold air to every corner of the room, ensuring that the temperature of the entire room can reach the set level. In the existing technology, the internal fan of the centrifugal fan is generally installed in the internal circulation outlet of the electric air conditioner. The internal fan is directly fixed to the internal circulation outlet of the air conditioner by bolts. Since the space of the internal circulation outlet of the air conditioner is small, the installation and maintenance of the internal fan is relatively inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide an internal fan installation structure for centrifugal fans to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an internal fan installation structure for a centrifugal fan, comprising an air conditioner body, a fixing plate symmetrically fixedly installed on the top of the air conditioner body, a fixing connecting plate installed between the two fixing plates, an internal fan body symmetrically installed in the middle of the fixing connecting plate, the internal fan body being configured to correspond to the internal circulation air outlet of the air conditioner, a positioning block for positioning the fixing connecting plate being installed on the fixing plate, a positioning through hole corresponding to the positioning block being opened at the end of the fixing connecting plate, and the positioning block being slidably inserted into the positioning through hole.

[0005] As a further preferred embodiment of this technical solution, the inner wall of the fixed plate is symmetrically fixedly installed with limit rods, and the two limit rods are slidably connected to the positioning block. The positioning block has limit holes, and the limit holes are slidably connected to the limit rods. A compression spring is sleeved on the outer side of the end of the limit rod near the fixed plate. One end of the compression spring is fixedly connected to the fixed plate, and the other end of the compression spring is fixedly connected to the positioning block.

[0006] As a further preferred embodiment of this technical solution, the apex of the positioning block away from the compression spring is provided with an inclined surface, and the inclined surface is in compression contact with the end of the fixed connecting plate.

[0007] As a further preferred embodiment of this technical solution, a positioning plate is integrally fixedly installed on the top of the positioning block.

[0008] As a further preferred embodiment of this technical solution, a first guide rod is fixedly installed in the middle of the fixed plate, and a movable frame is slidably installed between the two first guide rods on the two fixed plates. A pressing rod is fixedly installed at both ends of the movable frame corresponding to the position of the positioning block. A first pressing slope is provided at the end of the pressing rod, and a second pressing slope is provided on one side of the positioning block. The first pressing slope and the second pressing slope are in pressing contact.

[0009] As a further preferred embodiment of this technical solution, positioning rods are symmetrically fixedly installed at the bottom end of the fixing plate, and positioning holes are opened at the corresponding positions of the positioning rods on the fixing connecting plate. The positioning holes are slidably connected to the positioning rods, and the top of the positioning rods is chamfered.

[0010] As a further preferred embodiment of this technical solution, a second guide rod is symmetrically fixedly installed inside the fixed connecting plate, a movable plate is slidably installed between the two second guide rods, and a brush is fixedly installed below the movable plate.

[0011] This utility model provides an internal fan installation structure for centrifugal fans, which has the following advantages:

[0012] (1) This utility model pre-fixes the fixing plate on the top two sides of the air conditioner body, and the two indoor fan bodies are fixed on the fixing connecting plate. The fixing connecting plate is installed between the two fixing plates, which facilitates the installation of the indoor fan bodies. When the indoor fan bodies are removed for maintenance, the fixing connecting plate is taken out from between the two fixing plates, which facilitates the disassembly and maintenance of the indoor fan bodies.

[0013] (2) In this utility model, the fixed connecting plate is slid between two fixed plates. The two ends of the fixed connecting plate will press the inclined angle of the end of the positioning block, which will drive the positioning block to slide along the limiting rod. At this time, the compression spring is in a compressed state. When the positioning block corresponds to the positioning hole, the compression spring will push the positioning block to insert into the positioning hole, which is convenient for the installation between the fixed connecting plate and the fixed plate. Then, by pushing the moving frame along the first guide rod, the compression rod on the moving frame will press the positioning block. The compression of the first compression slope at the end of the compression rod against the second compression slope on the side of the positioning block will drive the positioning block to slide along the limiting rod. The positioning block will slide out of the positioning hole, canceling the positioning of the fixed connecting plate by the positioning block. Then, the fixed connecting plate is lifted and removed from between the two fixed plates, which is convenient for the disassembly of the fixed connecting plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is a partial structural schematic diagram of the present invention;

[0017] Figure 4 This is one of the schematic diagrams of a partial explosion structure of this utility model;

[0018] Figure 5 This is the second schematic diagram of the partial explosion structure of this utility model;

[0019] Figure 6 This is the third schematic diagram of the partial explosion structure of this utility model;

[0020] In the diagram: 1. Air conditioner body; 2. Fixing plate; 3. Fixing connection plate; 4. Indoor fan body; 5. Positioning block; 6. Positioning through hole; 7. Limiting rod; 8. Limiting hole; 9. Compression spring; 10. Inclined angle; 11. Positioning plate; 12. First guide rod; 13. Moving frame; 14. Compression rod; 15. First compression slope; 16. Second compression slope; 17. Positioning rod; 18. Positioning hole; 19. Chamfer; 20. Second guide rod; 21. Moving plate; 22. Brush. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 6 As shown in this embodiment, an internal fan installation structure for a centrifugal fan includes an air conditioner body 1. Fixing plates 2 are symmetrically fixed to the inner walls of the top two sides of the air conditioner body 1 using rivets. A fixing connecting plate 3 is installed between the two fixing plates 2. An internal fan body 4 is symmetrically installed in the middle of the fixing connecting plate 3. The internal fan body 4 is positioned corresponding to the internal circulation air outlet of the air conditioner. A positioning block 5 for positioning the fixing connecting plate 3 is slidably installed on the fixing plate 2. A positioning through hole 6 corresponding to the positioning block 5 is opened at the end of the fixing connecting plate 3. The positioning block 5 and the positioning through hole 6 are slidably inserted into each other. The fixing plates 2 are pre-fixed to the top two sides of the air conditioner body 1 using rivets. The two internal fan bodies 4 are fixed to the fixing connecting plate 3. Installing the fixing connecting plate 3 between the two fixing plates 2 facilitates the installation of the internal fan bodies 4. When removing the internal fan bodies 4 for maintenance, the fixing connecting plate 3 is removed from between the two fixing plates 2, facilitating the disassembly and maintenance of the internal fan bodies 4.

[0023] like Figures 1 to 6As shown, limit rods 7 are symmetrically fixedly installed on the inner wall of the fixed plate 2. The two limit rods 7 are slidably connected to the positioning block 5. Limit holes 8 are opened on the positioning block 5. The limit holes 8 are slidably connected to the limit rods 7. A compression spring 9 is sleeved on the outer side of the end of the limit rod 7 near the fixed plate 2. One end of the compression spring 9 is fixedly connected to the fixed plate 2, and the other end of the compression spring 9 is fixedly connected to the positioning block 5.

[0024] The fixed connecting plate 3 is slid between the two fixed plates 2. The positioning block 5 is pushed by the compression spring 9 and inserted into the positioning hole 6 to fix the fixed connecting plate 3.

[0025] like Figures 1 to 6 As shown, the top corner of the positioning block 5 away from the compression spring 9 is provided with an inclination angle 10, and the inclination angle 10 is in compression contact with the end of the fixed connecting plate 3.

[0026] During the process of sliding the fixed connecting plate 3 between the two fixed plates 2, the two ends of the fixed connecting plate 3 will press the tilt angle 10 of the end of the positioning block 5, which will drive the positioning block 5 to slide along the limit rod 7, making it convenient to install the fixed connecting plate 3 and the fixed plate 2.

[0027] like Figures 1 to 6 As shown, a positioning plate 11 is integrally fixedly installed on the top of the positioning block 5.

[0028] When the positioning block 5 is pushed into the positioning hole 6 by the compression spring 9, the design of the positioning plate 11 can prevent the positioning block 5 from being over-inserted into the positioning hole 6.

[0029] like Figures 1 to 6 As shown, a first guide rod 12 is fixedly installed in the middle of the fixed plate 2, and a movable frame 13 is slidably installed between the two first guide rods 12 on the two fixed plates 2. The two ends of the movable frame 13 are fixedly installed with extrusion rods 14 corresponding to the positions of the positioning blocks 5. The end of the extrusion rod 14 is provided with a first extrusion inclined surface 15, and a second extrusion inclined surface 16 is provided on one side of the positioning block 5. The first extrusion inclined surface 15 and the second extrusion inclined surface 16 are in extrusion contact.

[0030] By pushing the movable frame 13 along the first guide rod 12, the pressing rod 14 on the movable frame 13 will press the positioning block 5. The pressing of the first pressing slope 15 at the end of the pressing rod 14 against the second pressing slope 16 on one side of the positioning block 5 will cause the positioning block 5 to slide along the limiting rod 7. The positioning block 5 will slide out of the positioning through hole 6, thus canceling the positioning of the positioning block 5 on the fixed connecting plate 3.

[0031] like Figures 1 to 6As shown, a positioning rod 17 is symmetrically fixedly installed at the bottom end of the fixing plate 2, and a positioning hole 18 is opened at the position corresponding to the positioning rod 17 on the fixing connecting plate 3. The positioning hole 18 is slidably connected to the positioning rod 17, and a chamfer 19 is opened at the top of the positioning rod 17.

[0032] When the fixed connecting plate 3 is installed between the two fixed plates 2, the positioning rod 17 can be inserted into the positioning hole 18 to facilitate the installation and positioning between the fixed connecting plate 3 and the fixed plate 2.

[0033] like Figures 1 to 6 As shown, the fixed connecting plate 3 has two second guide rods 20 symmetrically fixedly installed inside, and a movable plate 21 is slidably installed between the two second guide rods 20. A brush 22 is fixedly installed below the movable plate 21.

[0034] By moving the moving plate 21 along the trajectory of the second guide rod 20, the brush 22 on the moving plate 21 can clean the dust on the fixed connecting plate 3, making it convenient to clean the dust accumulated on the fixed connecting plate 3.

[0035] This utility model provides an internal fan mounting structure for a centrifugal fan, and its specific working principle is as follows:

[0036] When the device is in use, the fixing plate 2 is pre-fixed to the top two sides of the air conditioner body 1 by rivets, and the two inner fan bodies 4 are fixed on the fixing connecting plate 3. When installing the fixing connecting plate 3 on which the inner fan bodies 4 are installed, the fixing connecting plate 3 is slid between the two fixing plates 2. The two ends of the fixing connecting plate 3 will press the tilt angle 10 of the end of the positioning block 5, which will drive the positioning block 5 to slide along the limit rod 7. At this time, the compression spring 9 is in a compressed state. When the positioning block 5 corresponds to the positioning through hole 6, the compression spring 9 pushes the positioning block 5 to drive the positioning block 5 to be inserted into the positioning through hole 6 for fixing the fixing connecting plate 3, that is, to realize the installation of the inner fan body 4.

[0037] When removing the internal fan body 4 for maintenance, the moving frame 13 is pushed to slide along the first guide rod 12. The pressing rod 14 on the moving frame 13 will press the positioning block 5. The pressing of the first pressing slope 15 at the end of the pressing rod 14 against the second pressing slope 16 on one side of the positioning block 5 will cause the positioning block 5 to slide along the limiting rod 7. The positioning block 5 will slide out of the positioning through hole 6, canceling the positioning of the positioning block 5 on the fixed connecting plate 3. Then, the fixed connecting plate 3 is lifted and removed from between the two fixed plates 2, thus realizing the disassembly of the internal fan body 4 and facilitating the maintenance of the internal fan body 4.

[0038] By moving the moving plate 21 along the trajectory of the second guide rod 20, the brush 22 on the moving plate 21 can clean the dust on the fixed connecting plate 3, making it convenient to clean the dust accumulated on the fixed connecting plate 3.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internal fan mounting structure for a centrifugal fan, comprising an air conditioning body (1), characterized in that: The top of the air conditioner body (1) is symmetrically fixed with a fixing plate (2), and a fixing connecting plate (3) is installed between the two fixing plates (2). An internal fan body (4) is symmetrically installed in the middle of the fixing connecting plate (3). The internal fan body (4) is set to correspond to the internal circulation air outlet of the air conditioner. A positioning block (5) for positioning the fixing connecting plate (3) is installed on the fixing plate (2). A positioning hole (6) corresponding to the positioning block (5) is opened at the end of the fixing connecting plate (3). The positioning block (5) and the positioning hole (6) are slidably inserted into each other.

2. The internal fan installation structure for a centrifugal fan according to claim 1, characterized in that: Limiting rods (7) are symmetrically fixedly installed on the inner wall of the fixed plate (2). The two limiting rods (7) are slidably connected to the positioning block (5). The positioning block (5) has a limiting hole (8). The limiting hole (8) is slidably connected to the limiting rod (7). A compression spring (9) is sleeved on the outer side of the end of the limiting rod (7) near the fixed plate (2). One end of the compression spring (9) is fixedly connected to the fixed plate (2), and the other end of the compression spring (9) is fixedly connected to the positioning block (5).

3. The internal fan installation structure for a centrifugal fan according to claim 2, characterized in that: The positioning block (5) has an inclined angle at the top corner away from the compression spring (9), and the inclined angle is in compression contact with the end of the fixed connecting plate (3).

4. The internal fan installation structure for a centrifugal fan according to claim 3, characterized in that: The top of the positioning block (5) is integrally fixed with a positioning plate (11).

5. The internal fan installation structure for a centrifugal fan according to claim 2, characterized in that: A first guide rod (12) is fixedly installed in the middle of the fixed plate (2). A movable frame (13) is slidably installed between the two first guide rods (12) on the two fixed plates (2). A pressing rod (14) is fixedly installed at both ends of the movable frame (13) corresponding to the position of the positioning block (5). A first pressing slope (15) is opened at the end of the pressing rod (14). A second pressing slope (16) is opened on one side of the positioning block (5). The first pressing slope (15) and the second pressing slope (16) are in pressing contact.

6. The internal fan installation structure for a centrifugal fan according to claim 5, characterized in that: The bottom end of the fixing plate (2) is symmetrically fixed with positioning rods (17), and the fixing connecting plate (3) is provided with positioning holes (18) at the corresponding positions of the positioning rods (17). The positioning holes (18) are slidably connected with the positioning rods (17), and the top of the positioning rods (17) is provided with chamfers (19).

7. The internal fan installation structure for a centrifugal fan according to claim 3, characterized in that: The fixed connecting plate (3) is symmetrically fixedly installed with second guide rods (20), and a movable plate (21) is slidably installed between the two second guide rods (20). A brush (22) is fixedly installed below the movable plate (21).

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