Condensation fan capable of preventing airflow backflow oscillation

Abstract

The utility model relates to the technical field of condensation fans, in particular to an airflow backflow oscillation prevention condensation fan which comprises a shell, a filtering device is arranged on the rear surface of the shell, first additional blocks are arranged on the front portions of the inner walls of the two sides of the shell, and a plurality of first grooves are formed in the front surfaces of the two first additional blocks. A plurality of first grooves are formed in the outer shell, coils are arranged in the first grooves, a plurality of shaft grooves are formed in the inner walls of the two sides of the outer shell, shutters are arranged between the two rotating shafts on the same horizontal line, a detection device is arranged between the shutters and the first additional block, and one ends of the first bolts penetrate through the covering block and are in threaded connection with the outer shell. The shutters are opened and closed along the rotating shaft through power-on and power-off of the coil, signals are transmitted to a computer end through electrical connection of the first contact and the second contact, an operator is reminded that the condensation fan breaks down, faults can be found conveniently, and good heat dissipation of the condenser is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of condensing fans, in particular to a condensing fan capable of preventing airflow backflow oscillation. Background Art

[0002] In the air conditioning system, the condenser fan plays an important role. The condenser cools the hot gas by transferring it to the air. There are two ways to cool it: one is to be taken away by natural wind, and the other is to be assisted by the condenser fan. When the air conditioning system is running, the condenser fan will continuously transfer the hot gas being discharged from the condenser to the air. This is the role of the condenser fan. If the hot gas from the condenser cannot be transferred to the air in time, it will cause the air conditioning system to overheat, which will affect the normal operation of the entire system.

[0003] For example, the authorization announcement number "CN205823691U" is a condensing fan assembly. Although the condensing fan installation method is novel, the vibration reduction effect is good, and the reliability of the components is improved, if the condensing fan pipe fails or is blocked, it will cause airflow backflow, which will cause poor heat dissipation of the condenser, and it is difficult to find the fault. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a condensing fan capable of preventing airflow backflow oscillation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A condensing fan for preventing airflow backflow oscillation is designed, comprising a shell, an inner wall of the shell is provided with two fan brackets, a driving mechanism is provided on one side surface of the fan bracket, a driving shaft is provided on one side surface of the driving mechanism, one end of the driving shaft penetrates the fan bracket close to the driving mechanism, one end of the driving shaft is rotatably connected to the fan bracket far away from the driving mechanism, a plurality of fan blades are sleeved on the outside of the driving shaft, a filtering device is provided on the rear surface of the shell, a first additional block is provided on the front part of the inner walls on both sides of the shell, a plurality of first grooves are provided on the front surface of the two first additional blocks, a coil is provided inside the plurality of first grooves, a plurality of shaft grooves are provided on the inner walls on both sides of the shell, a rotating shaft is provided inside the plurality of shaft grooves, a louver is provided between the two rotating shafts on the same horizontal line, a detection device is provided between the louver and the first additional block, a second groove is provided on one side surface of the plurality of louvers close to the first additional block, a magnet is provided inside the plurality of second grooves, a plurality of magnets correspond to a plurality of coils one by one, and the magnets match the coils, a covering block is provided on the front surface of the shell, a plurality of first bolts are provided on the outside of the covering block, one end of the plurality of first bolts penetrates the covering block and is threadedly connected to the shell.

[0007] Preferably, the upper portion of the front surface of the louver is provided with a first L-shaped groove, and the lower portion of the rear surface of the louver is provided with a second L-shaped groove, and the first L-shaped groove matches the second L-shaped groove.

[0008] Preferably, the filter device comprises a filter screen, a second additional block is provided at the rear portion of the inner wall of the shell, a plurality of second bolts are provided behind the filter screen, and one end of the plurality of second bolts passes through the filter screen and is threadedly connected to the second additional block.

[0009] Preferably, a plurality of reinforcing ribs are provided on a surface of the louver on one side away from the first additional block.

[0010] Preferably, a plurality of positioning grooves are provided on the front surface of the shell, and a plurality of positioning blocks are provided on the rear surface of the cover block, and the positioning blocks match the positioning grooves.

[0011] Preferably, the detection device includes a first contact and a second contact, a plurality of first element slots are provided on the front surface of the first additional block, the first contact is arranged inside the first element slots, a plurality of second element slots are provided on the rear surfaces of the louvers, the second contact is arranged inside the second element slots, and the second contact is electrically connected to the first contact.

[0012] The utility model proposes a condensing fan which prevents airflow backflow and oscillation, and its beneficial effects are as follows: the set louvers are energized and de-energized by the coil, and after the coil is energized, due to the mutual repulsion of like magnetic poles, the coil and the magnet repel each other, so that the louvers are opened and closed along the rotating shaft, and when the condensing fan is in the on state, if the pipe of the condensing fan fails or is blocked, causing airflow backflow, the louvers will be affected by the airflow, so that the louvers are closed to prevent airflow backflow, and the detection device set at this time is electrically connected to the second contact through the first contact, and transmits the signal to the computer end, reminding the operator that the condensing fan has a fault, which is convenient for finding the fault and ensuring good heat dissipation of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a left side cross-sectional view of the utility model in a closed state;

[0014] Figure 2 It is a left side cross-sectional view of the utility model in the opened state;

[0015] Figure 3 This is the main structural diagram of the utility model;

[0016] Figure 4 This is a main structural diagram of the housing of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the shutter of the utility model;

[0018] Figure 6 This is an enlarged view of position A of the utility model;

[0019] Figure 7 This is an enlarged view of position B of the utility model;

[0020] Figure 8 This is an enlarged view of position C of the utility model;

[0021] Fig. 9 It is an enlarged view of position D of the present utility model.

[0022] In the figure: casing 1, fan bracket 2, driving mechanism 3, driving shaft 4, fan blades 5, first additional block 6, first groove 7, coil 8, shaft groove 9, rotating shaft 10, louver 11, second groove 12, magnet 13, covering block 14, first bolt 15, first L-shaped groove 16, second L-shaped groove 17, filter 18, second additional block 19, second bolt 20, reinforcing rib 21, positioning groove 22, positioning block 23, first element groove 24, first contact 25, second element groove 26, second contact 27. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-9 A condensing fan for preventing airflow backflow oscillation comprises a housing 1, and two fan brackets 2 are arranged on the inner wall of the housing 1 for supporting a driving mechanism 3 and a driving shaft 4. The driving mechanism 3 is arranged on one side surface of the fan bracket 2, and the driving shaft 4 is arranged on one side surface of the driving mechanism 3. One end of the driving shaft 4 penetrates the fan bracket 2 close to the driving mechanism 3, and one end of the driving shaft 4 is rotatably connected to the fan bracket 2 far from the driving mechanism 3, and a plurality of fan blades 5 are sleeved on the outside of the driving shaft 4.

[0025] A filter device is provided on the rear surface of the housing 1, and the filter device includes a filter screen 18. A second additional block 19 is provided at the rear portion of the inner wall of the housing 1. A plurality of second bolts 20 are provided behind the filter screen 18. One end of the plurality of second bolts 20 penetrates through the filter screen 18 and is threadedly connected to the second additional block 19. The airflow can enter the interior of the housing 1 through the filter screen 18, and the airflow is filtered by the filter screen 18 to prevent large particles of foreign matter from entering the interior of the housing 1.

[0026] The front part of the inner wall on both sides of the housing 1 is provided with a first additional block 6, and the front surface of the two first additional blocks 6 is provided with a plurality of first grooves 7, and the first grooves 7 are used to install the coil 8. The coil 8 is arranged inside the plurality of first grooves 7, and the inner wall on both sides of the housing 1 is provided with a plurality of shaft grooves 9, and the shaft grooves 9 are used to install the rotating shaft 10. The rotating shaft 10 is arranged inside the plurality of shaft grooves 9, and a shutter 11 is arranged between the two rotating shafts 10 on the same horizontal line.

[0027] A detection device is provided between the louver 11 and the first additional block 6, and the detection device includes a first contact 25 and a second contact 27. A plurality of first element slots 24 are provided on the front surface of the first additional block 6, and the first contact 25 is arranged inside the first element slot 24. A plurality of second element slots 26 are provided on the rear surfaces of the louvers 11, and the second contact 27 is arranged inside the second element slot 26. The second contact 27 is electrically connected to the first contact 25. When the second contact 27 is electrically connected or disconnected from the first contact 25, a signal is fed back to the computer terminal, so as to facilitate the judgment of whether the louver 11 is closed.

[0028] The second groove 12 is provided on the side surface of the plurality of shutters 11 close to the first additional block 6, and the second groove 12 is used to install the magnet 13. The magnets 13 are provided inside the plurality of second grooves 12, and the plurality of magnets 13 correspond to the plurality of coils 8 one by one, and the magnets 13 match the coils 8. The front surface of the shell 1 is provided with a covering block 14, and the outside of the covering block 14 is provided with a plurality of first bolts 15, and one end of the plurality of first bolts 15 passes through the covering block 14 and is threadedly connected to the shell 1. When installing the shutter 11, first put the rotating shaft 10 provided at both ends of the shutter 11 into the shaft groove 9, then cover the covering block 14 on the shell 1, and then pass the first bolt 15 through the covering block 14 and threadedly connect it to the shell 1, and the installation is completed.

[0029] The upper portion of the front surface of the louver 11 is provided with a first L-shaped groove 16, and the lower portion of the rear surface of the louver 11 is provided with a second L-shaped groove 17, and the first L-shaped groove 16 matches the second L-shaped groove 17. The second L-shaped groove 17 covers the first L-shaped groove 16, so that the louver 11 is in a vertical state.

[0030] A plurality of reinforcing ribs 21 are provided on a side surface of the louver 11 away from the first additional block 6 to enhance the strength of the louver 11 .

[0031] The front surface of the housing 1 is provided with a plurality of positioning grooves 22, and the rear surface of the cover block 14 is provided with a plurality of positioning blocks 23, and the positioning blocks 23 match the positioning grooves 22. During installation, by inserting the positioning blocks 23 into the positioning grooves 22, the cover block 14 can be quickly positioned.

[0032] Working principle: the shutter 11 is energized and de-energized by the coil 8. After the coil 8 is energized, due to the mutual repulsion of like magnetic poles, the coil 8 and the magnet 13 repel each other, so that the shutter 11 is opened and closed along the rotating shaft 10. When the condensing fan is in the on state, if the duct of the condensing fan fails or is blocked, causing air flow backflow, the shutter 11 will be affected by the airflow, so that the shutter 11 is closed to prevent air flow backflow. At this time, the detection device set is electrically connected to the second contact 25 and the second contact 27, and transmits the signal to the computer end to remind the operator that the condensing fan has a fault, which is convenient for finding the fault and ensuring good heat dissipation of the condenser.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A condensing fan for preventing airflow backflow oscillation, comprising a housing (1), characterized in that: The inner wall of the shell (1) is provided with two fan brackets (2), one side surface of the fan bracket (2) is provided with a driving mechanism (3), one side surface of the driving mechanism (3) is provided with a driving shaft (4), one end of the driving shaft (4) passes through the fan bracket (2) close to the driving mechanism (3), one end of the driving shaft (4) is rotatably connected to the fan bracket (2) far from the driving mechanism (3), the outer surface of the driving shaft (4) is sleeved with a plurality of fan blades (5), the rear surface of the shell (1) is provided with a filtering device, the front parts of the inner walls on both sides of the shell (1) are provided with first additional blocks (6), the front surfaces of the two first additional blocks (6) are provided with a plurality of first grooves (7), the plurality of first grooves (7) are provided with coils (8), the inner walls on both sides of the shell (1) are provided with a plurality of shafts (7), and the inner walls of the two sides of the shell (1) are provided with a plurality of shafts (8). A plurality of shaft grooves (9) are provided with rotating shafts (10) inside, a shutter (11) is provided between two rotating shafts (10) on the same horizontal line, a detection device is provided between the shutter (11) and the first additional block (6), a second groove (12) is provided on a surface of a side of the plurality of shutters (11) close to the first additional block (6), a magnet (13) is provided inside the plurality of second grooves (12), the plurality of magnets (13) correspond to the plurality of coils (8) one by one, the magnets (13) match the coils (8), a covering block (14) is provided on the front surface of the housing (1), a plurality of first bolts (15) are provided on the outside of the covering block (14), one end of the plurality of first bolts (15) passes through the covering block (14) and is threadedly connected to the housing (1).

2. A condensing fan for preventing airflow backflow oscillation according to claim 1, characterized in that: The upper portion of the front surface of the louver (11) is provided with a first L-shaped groove (16), and the lower portion of the rear surface of the louver (11) is provided with a second L-shaped groove (17), and the first L-shaped groove (16) matches the second L-shaped groove (17).

3. The condensing fan for preventing airflow backflow oscillation according to claim 1, characterized in that: The filter device comprises a filter screen (18), a second additional block (19) is provided at the rear portion of the inner wall of the housing (1), a plurality of second bolts (20) are provided behind the filter screen (18), one end of the plurality of second bolts (20) penetrates the filter screen (18) and is threadedly connected to the second additional block (19).

4. The condensing fan for preventing airflow backflow oscillation according to claim 1, characterized in that: A plurality of reinforcing ribs (21) are provided on a surface of one side of the shutter (11) away from the first additional block (6).

5. The condensing fan for preventing airflow backflow oscillation according to claim 1, characterized in that: The front surface of the housing (1) is provided with a plurality of positioning grooves (22), and the rear surface of the cover block (14) is provided with a plurality of positioning blocks (23), wherein the positioning blocks (23) match the positioning grooves (22).

6. The condensing fan for preventing airflow backflow oscillation according to claim 1, characterized in that: The detection device comprises a first contact (25) and a second contact (27); a plurality of first element slots (24) are provided on the front surface of the first additional block (6); the first contact (25) is arranged inside the first element slots (24); a plurality of second element slots (26) are provided on the rear surfaces of the plurality of louvers (11); the second contact (27) is arranged inside the second element slots (26); and the second contact (27) is electrically connected to the first contact (25).

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