A special impeller assembly for air curtain machines

Abstract

This utility model discloses a special impeller assembly for an air curtain machine, including an impeller mechanism and a heat dissipation mechanism located inside the air curtain machine's housing. The impeller mechanism includes a motor, a left drive impeller, and a right drive impeller. The motor is equipped with coaxial and opposing left and right drive shafts. The left drive shaft of the motor is connected to the left drive impeller, and the right drive shaft is connected to the right drive impeller. The left and right drive impellers are cross-flow impellers. The heat dissipation mechanism includes cooling impellers arranged opposite each other on the left and right sides. The cooling impellers are respectively connected to the end faces of the left and right drive impellers near the motor without tools. The cooling impellers are centrifugal impellers, with their air inlet side facing the motor. This utility model drives the cooling impellers to rotate by driving the impellers, thereby generating airflow to introduce the heat from the motor into the cooling impellers. The generated hot air is first blown out from the outer circumference of the cooling impellers and then discharged from the air inlet and outlet of the air curtain machine's housing, improving the motor's heat dissipation effect and effectively reducing the motor cost.

Description

Technical Field

[0001] This utility model relates to the field of air curtain machine technology, and in particular to a special impeller assembly for air curtain machines. Background Technology

[0002] Existing air curtain machines typically use a central motor to drive a cross-flow impeller that is positioned at both ends and arranged opposite each other. In order to better conceal the motor and improve aesthetics, the outer side of the air curtain machine housing where the motor is installed is sealed, which results in poor heat dissipation of the motor. Therefore, a motor with more coils or stator laminations is required, which increases manufacturing costs.

[0003] In addition, due to the symmetrical structure of the impellers, it is impossible to install a cooling fan similar to a tower fan on one of the motors, and it is easy to cause an imbalance in the drive of the impellers at both ends, affecting the air output effect.

[0004] Therefore, in order to solve the above problems, it is urgent to design a special impeller assembly for air curtain machines. By setting tool-free centrifugal cooling impellers on the end faces of the left and right drive impellers near the motor, the drive impellers drive the cooling impellers to rotate, thereby generating airflow to introduce the heat of the motor into the cooling impellers. The generated hot air is first blown out from the outer circumference of the cooling impellers, and then discharged from the air inlet and outlet of the air curtain machine casing, improving the motor heat dissipation effect and effectively reducing the motor cost. Utility Model Content

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A special impeller assembly for an air curtain machine, characterized in that it includes an impeller mechanism and a heat dissipation mechanism located inside the air curtain machine housing;

[0007] The wind turbine mechanism includes a motor, a left drive wind turbine, and a right drive wind turbine. The motor is equipped with a coaxial and opposite left drive shaft and a right drive shaft. The left drive shaft of the motor is connected to the left drive wind turbine, and the right drive shaft is connected to the right drive wind turbine.

[0008] The left and right drive impellers are connected to the air curtain machine housing via rotating shafts at their ends furthest from the motor. The left and right drive impellers are cross-flow impellers.

[0009] The heat dissipation mechanism includes heat dissipation fans arranged opposite each other on the left and right sides. The heat dissipation fans are respectively connected to the end faces of the left drive fan and the right drive fan that are close to the motor without tools.

[0010] The cooling fan is a centrifugal fan, and the air inlet side faces the motor.

[0011] Preferably, the cooling fan is engaged with the left drive fan and the right drive fan.

[0012] Preferably, the cooling fan is rotatably engaged with the left drive fan and the right drive fan;

[0013] The bottom surface of the heat dissipation fan is provided with multiple L-shaped clips arranged in a circular array, and the end faces of the left and right drive fan wheels near the motor are provided with slots for engaging with the L-shaped clips.

[0014] The L-shaped card head and the card slot are set in a one-to-one correspondence.

[0015] Preferably, the L-shaped clamp head and the bayonet are engaged in the same direction as the rotation of the driving impeller.

[0016] Preferably, the cooling fan is a backward-inclined centrifugal fan.

[0017] Preferably, the outer diameter of the cooling fan is less than or equal to the outer diameter of the driving fan.

[0018] Preferably, the heat dissipation fan is tightly connected to the left drive fan or the right drive fan after being rotated and snapped together.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model features tool-free centrifugal cooling fans installed on the end faces of the left and right drive impellers near the motor. The drive impellers rotate the cooling fans, generating airflow that draws heat from the motor into the cooling fans. The resulting hot air is then blown out from the outer circumference of the cooling fans and discharged from the air inlet and outlet of the air curtain machine casing, thus improving the motor's heat dissipation effect and effectively reducing motor costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a diagram showing the connection relationship between the right drive fan and the cooling fan in this utility model;

[0024] The components include: wind turbine mechanism 1, heat dissipation mechanism 2, heat dissipation wind turbine 3, bayonet 10, motor 11, left drive wind turbine 12, right drive wind turbine 13, L-shaped clamp 31, left drive shaft 111, and right drive shaft 112. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0029] like Figure 1-3 As shown, a special impeller assembly for an air curtain machine includes an impeller mechanism 1 and a heat dissipation mechanism 2 located inside the air curtain machine housing (not shown in the figure);

[0030] The wind turbine mechanism 1 includes a motor 11, a left drive wind turbine 12 and a right drive wind turbine 13. The motor 11 is provided with a coaxial and opposite left drive shaft 111 and a right drive shaft 112. The left drive shaft 111 of the motor 11 is connected to the left drive wind turbine 12, and the right drive shaft 112 is connected to the right drive wind turbine 13.

[0031] The left drive impeller 12 and the right drive impeller 13 are respectively connected to the air curtain machine housing via rotating shafts at the ends away from the motor 11. The left drive impeller 12 and the right drive impeller 13 are cross-flow impellers.

[0032] The heat dissipation mechanism 2 includes heat dissipation fan wheels 3 arranged opposite to each other on the left and right sides. The heat dissipation fan wheels 3 are respectively connected to the end faces of the left drive fan wheel 12 and the right drive fan wheel 13 near the motor 11 without tools.

[0033] The cooling fan 3 is a centrifugal fan, and the air inlet side faces the motor 11.

[0034] In this embodiment, the left drive impeller 12 and the right drive impeller 13 are cross-flow impellers, and the cooling impeller 3 is a centrifugal impeller. By setting tool-free cooling impellers 3 on the end surfaces of the left drive impeller 12 and the right drive impeller 13 near the motor 11, the driving impeller drives the cooling impeller 3 to rotate, thereby generating suction to introduce the heat of the motor 11 into the cooling impeller 3. The generated hot air is first blown out from the outer circumference of the cooling impeller 3, and then discharged from the air inlet and air outlet of the air curtain machine housing, thereby improving the heat dissipation effect of the motor and effectively reducing the cost of the motor.

[0035] In the above structure, due to the improved heat dissipation performance of the motor 11, a motor 11 with fewer copper wires or fewer stator laminations can be configured, thereby reducing the procurement cost of the motor 11.

[0036] Furthermore, such as Figure 1 , 2 As shown in Figures 1 and 3, for ease of disassembly, assembly, and maintenance, the cooling fan 3 is engaged with the left drive fan 12 and the right drive fan 13.

[0037] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to connect the cooling fan 3 to the drive fan in a low-cost, convenient and reliable manner, the cooling fan 3 is rotatably engaged with the left drive fan 12 and the right drive fan 13.

[0038] The bottom surface of the heat dissipation fan 3 is provided with a plurality of L-shaped clips 31 arranged in a circular array, and the end faces of the left drive fan 12 and the right drive fan 13 near the motor 11 are provided with clips 10 that engage with the L-shaped clips 31.

[0039] The L-shaped card head 31 is set in a one-to-one correspondence with the card slot 10.

[0040] In this embodiment, the mold for producing the drive impeller does not require major structural modifications. The bayonet 10 is formed directly during the molding process. For metal impellers, the bayonet 10 can be directly opened on the end face, which is practical and reliable.

[0041] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to ensure a stable and secure connection between the cooling fan 3 and the driving fan, and to achieve the purpose of rotational clamping, the L-shaped clamp head 31 and the clamping slot 10 are rotated and clamped in the same direction as the rotation direction of the driving fan.

[0042] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to reduce the load on motor 11, reduce resistance, and improve the suction effect on motor 11, the cooling fan 3 is a backward-inclined centrifugal fan.

[0043] In this embodiment, the above structure uses a rotating snap-fit ​​mechanism to ensure that the rotation of the drive fan synchronously drives the cooling fan 3 to rotate.

[0044] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to achieve reasonable connection and assembly and improve heat dissipation effect, the outer diameter of the heat dissipation fan 3 is less than or equal to the outer diameter of the driving fan.

[0045] Furthermore, such as Figure 1 , 2 As shown in Figure 3, in order to ensure that the cooling fan 3 and the drive fan are integrated and to improve working stability, the cooling fan 3 is tightly connected to the left drive fan 12 or the right drive fan 13 after being rotated and snapped together.

[0046] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A special impeller assembly for an air curtain machine, characterized in that, This includes the impeller mechanism and heat dissipation mechanism located inside the air curtain machine's casing; The wind turbine mechanism includes a motor, a left drive wind turbine, and a right drive wind turbine. The motor is equipped with a coaxial and opposite left drive shaft and a right drive shaft. The left drive shaft of the motor is connected to the left drive wind turbine, and the right drive shaft is connected to the right drive wind turbine. The left and right drive impellers are connected to the air curtain machine housing via rotating shafts at their ends furthest from the motor. The left and right drive impellers are cross-flow impellers. The heat dissipation mechanism includes heat dissipation fans arranged opposite each other on the left and right sides. The heat dissipation fans are respectively connected to the end faces of the left drive fan and the right drive fan that are close to the motor without tools. The cooling fan is a centrifugal fan, and the air inlet side faces the motor.

2. The wind turbine assembly for an air curtain machine according to claim 1, characterized in that, The cooling fan is engaged with the left drive fan and the right drive fan.

3. The wind turbine assembly for an air curtain machine according to claim 2, characterized in that, The cooling fan wheel is rotatably engaged with the left drive fan wheel and the right drive fan wheel; The bottom surface of the heat dissipation fan is provided with multiple L-shaped clips arranged in a circular array, and the end faces of the left and right drive fan wheels near the motor are provided with slots for engaging with the L-shaped clips. The L-shaped card head and the card slot are set in a one-to-one correspondence.

4. The wind turbine assembly for an air curtain machine according to claim 3, characterized in that, The L-shaped clamp head rotates and engages with the bayonet in the same direction as the direction of rotation of the driving impeller.

5. A special impeller assembly for an air curtain machine according to claim 1, 2, or 3, characterized in that, The cooling fan is a backward-inclined centrifugal fan.

6. A wind turbine assembly for an air curtain machine according to claim 1, characterized in that, The outer diameter of the cooling fan is less than or equal to the outer diameter of the driving fan.

7. A special impeller assembly for an air curtain machine according to claim 3, characterized in that, The cooling fan is tightly connected to the left or right drive fan after being rotated and snapped together.

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