Combined fan with detachable and interchangeable motor on base

Abstract

The combined fan comprises the base, an impeller, the motor, a printed circuit board (PCB) and a dustproof insulation cover ring, the size of the base is larger than that of a motor shell, the size of an outer ring of the dustproof insulation cover ring is matched with the base, and the size of an inner ring of the dustproof insulation cover ring is matched with the size of the motor shell. The center of the dustproof insulating cover ring is provided with a through hole for mounting a motor; the motor shell is arranged at the upper end of the dustproof insulating cover ring, and the dustproof insulating cover ring is arranged on the base; the capacitor is arranged on the PCB in a lying posture, and the lowest part of the capacitor is close to the bottom of the base. In this way, the motor shells of different sizes and the base of the large size can be subjected to size conversion butt joint so that motors of different sizes can be replaced, the height of the base can be made smaller, the area can be made larger, the efficiency of the driving plate and the efficiency of the fan can be made higher, and large-size elements such as a capacitor can be arranged in a flat mode so that the overall height of the fan can be remarkably reduced; therefore, the fan can be installed in equipment with limited installation height.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a combined fan that can be applied to products such as automotive air conditioning, new energy industry, industrial control, servers, game console equipment, air conditioning cabinets, and smart home appliances. Background Technology

[0002] Fans are used in many electrical products, such as automotive air conditioning, new energy industry equipment, industrial control, servers, gaming equipment, air conditioning cabinets, and smart home appliances. Figure 5 As shown, this type of fan generally includes an impeller, a base 1, a motor, and a PCB board 4. The motor is connected to a shaft 8, and the impeller is assembled and fixed to the motor housing 2. The shaft 8 is assembled to the base 1, and the PCB board 4 is installed in the base. For some high-power EC fans, the electronic components used are usually large, especially the capacitor 41, which is quite long. Due to the limitations of installation space and drive board power, the motor housing 2 of a conventional fan cannot be made too large, otherwise it will not meet the drive requirements. At the same time, since the base 1 needs to be assembled with the motor housing 2, the installation space of the base 1 is limited and must match the size of the motor housing 2 without being too tall. This means that large components such as the capacitor 41 cannot be placed in a flat position and can only be placed vertically on the PCB board 4. The vertical placement of the capacitor 41 and other components results in a relatively high overall height of the motor, further increasing the overall height of the fan after the motor is installed. This cannot effectively save space and cannot be adapted to equipment with limited installation height, so only a smaller power fan can be selected. However, a small power fan cannot meet the heat dissipation requirements of the equipment, which will affect the normal operation of the equipment itself, reduce performance and service life. In addition, the heat dissipation module and base 1 of existing fans are usually integrated into one structure. The heat of the module on the PCB board 4 is transferred to the base 1 through thermal adhesive to improve heat dissipation performance. However, since the heat dissipation module cannot be disassembled, it may be idle for low-power fans due to the small amount of heat generated, resulting in waste and increased costs. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a combined fan and ventilator with a detachable and interchangeable motor, featuring a more rational structural design, a base that can be made larger and thinner, allowing components such as capacitors to be laid flat, thereby reducing the overall height of the motor and fan.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a combined fan with a detachable and interchangeable motor, comprising a base, an impeller, a motor, and a PCB board. The motor is mounted on the central tube of the base, the impeller is mounted on the motor housing, and the PCB board is mounted in the base. The feature is that it further includes a dustproof insulating cover ring. The size of the base is larger than the size of the motor housing. The outer ring size of the dustproof insulating cover ring is adapted to the base, and the inner ring size is adapted to the motor housing size. The center of the dustproof insulating cover ring has a through hole for mounting the motor. The motor housing is mounted on the upper end of the dustproof insulating cover ring, and the dustproof insulating cover ring is mounted on the base. Capacitors or other large devices are mounted on the PCB board in a flat position, with the lowest part of the capacitor close to the bottom of the base.

[0005] Furthermore, a raised inner ring is provided near the central through hole in the dustproof insulation cover ring, and a mating ring is provided near the outer edge of the dustproof insulation cover ring. There is a mating groove between the inner ring and the mating ring. The end of the motor housing is aligned with or inserted into the mating groove but does not contact the dustproof insulation cover ring.

[0006] Furthermore, a mating edge with an L-shaped cross-section is provided at the top edge of the base, and a plugging edge protruding towards the base is provided at the outer edge of the dustproof and insulating cover ring. The plugging edge is inserted into the inner side of the mating edge and mates with the mating edge to form an assembly and fixing structure between the dustproof and insulating cover ring and the base.

[0007] Furthermore, a heat dissipation module independent of the base is provided in the base, and the heat dissipation module and the base adopt a detachable fixing structure.

[0008] Furthermore, the heat dissipation module includes a first heat dissipation module, with fixing ears at both ends of the heat dissipation module and screw posts in the base. The first heat dissipation module is installed in the base by screwing screws through the fixing ears and into the screw posts.

[0009] Furthermore, the heat dissipation module also includes a second heat dissipation module. The second heat dissipation module has fixing ears on both sides, and a screw post is provided in the base. The second heat dissipation module is installed in the base by screwing through the fixing ears and screwing into the screw post.

[0010] Furthermore, the base is made of aluminum alloy or metal-coated material, and heat dissipation holes are provided on the bottom surface of the base, aligned with the first heat dissipation module.

[0011] The dustproof insulating cover ring is made of insulating material.

[0012] Preferably, the dustproof insulating cover ring is made of plastic material and integrally molded by injection molding.

[0013] This invention utilizes an interchangeable base tube and dustproof insulating cover as intermediate transition components, perfectly combining a smaller motor housing with a larger base. This allows for size conversion and interchangeability to accommodate motors of different sizes. This enables a larger base diameter without altering the motor housing size, resulting in higher efficiency for the drive board and fan. Furthermore, it allows for the horizontal mounting of larger electronic components such as capacitors, significantly reducing the overall height of the motor and fan by 20-30mm. This reduced motor height allows for a smaller overall fan height, enabling installation in devices with limited height. This allows for the installation of a higher-power fan under the same conditions, significantly improving heat dissipation, operational stability, and lifespan. Additionally, by separating the heat dissipation module from the base, two base structures can be used, facilitating easy assembly and disassembly: without the heat dissipation module, it can be used as a DC or conventional power base; with the heat dissipation module, it can be used as an EC or high-power base, thus reducing costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the main body of this utility model from another angle;

[0016] Figure 3 This is an exploded structural diagram of the present invention;

[0017] Figure 4 This is a schematic cross-sectional view of the main body of this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the main body of a conventional wind turbine.

[0019] In the diagram, 1 is the base, 11 is the central tube, 12 is the screw post, 13 is the mating edge, 14 is the heat dissipation hole, 2 is the motor housing, 3 is the dustproof and insulating cover ring, 31 is the mating ring, 32 is the mating groove, 33 is the plug-in edge, 4 is the PCB board, 41 is the capacitor, 5 is the first heat dissipation module, 51 is the fixing ear, 6 is the second heat dissipation module, 61 is the fixing ear, 7 is the impeller, and 8 is the shaft. Detailed Implementation

[0020] In this embodiment, refer to Figures 1-4The detachable and interchangeable motor combination fan includes a base 1, an impeller 7, a motor, and a PCB board 4. The impeller 7 is mounted on the central tube 11 of the base 1, and the motor housing 2 of the motor is mounted on the motor housing 2. The PCB board 4 is mounted in the base 1. It also includes a dustproof and insulating cover ring 3. The size of the base 1 is larger than the size of the motor housing 2. The outer ring size of the dustproof and insulating cover ring 3 is adapted to the base 1, and the inner ring size of the dustproof and insulating cover ring 3 is adapted to the size of the motor housing 2. The center of the dustproof and insulating cover ring 3 has a through hole for mounting the motor. Different specifications of dustproof and insulating cover ring 3 and different sizes of central tubes can be configured to adapt to different specifications of motors. The motor housing 2 is mounted on the upper end of the dustproof and insulating cover ring 3, and the dustproof and insulating cover ring 3 is mounted on the base 1. This allows a smaller motor to be adapted to a larger base 1. The capacitor 41 or a larger device is mounted on the PCB board 4 in a flat position. The lowest part of the capacitor 41 is close to the bottom of the base 1. This reduces the height space occupied by the capacitor 41 by about half, up to two or three centimeters.

[0021] A raised inner ring (not shown) is provided near the central through hole of the dustproof insulating cover ring 3. A mating ring 31 is provided near the outer edge of the dustproof insulating cover ring 3. A mating groove 32 is formed between the inner ring and the mating ring 31. The end of the motor housing 2 is inserted into the mating groove 32 but does not contact the dustproof insulating cover ring 3. This serves both an assembly function and an effective dustproof effect.

[0022] A mating edge 13 with an L-shaped cross-section is provided on the top edge of the base 1. A plugging edge 33 protruding towards the base 1 is provided on the outer edge of the dustproof and insulating cover ring 3. The plugging edge 33 is inserted into the inner side of the mating edge 13 and mats with the mating edge 13 to form an assembly and fixing structure between the dustproof and insulating cover ring 3 and the base 1.

[0023] A heat dissipation module, independent of the base itself, is installed in the base 1. The heat dissipation module and the base 1 are fixed together by a detachable structure. For some fans with low heat generation, the heat dissipation module can be removed, which can save costs and avoid waste.

[0024] The heat dissipation module includes a first heat dissipation module 5, with fixing ears 51 at both ends of the first heat dissipation module 5. A screw post 12 is provided in the base 1. The first heat dissipation module 5 is installed in the base 1 by screwing through the fixing ears 51 and screwing into the screw post 12.

[0025] The heat dissipation module also includes a second heat dissipation module 6. The second heat dissipation module 6 has fixing ears 61 on both sides. The base 1 has a screw post. The second heat dissipation module 6 is installed in the base 1 by screwing through the fixing ears 61 and screwing into the screw post.

[0026] The base 1 is made of aluminum alloy or metal coated with rubber, and heat dissipation holes 14 are provided on the bottom surface of the base 1 facing the first heat dissipation module 5.

[0027] The dustproof insulating cover ring 3 is made of insulating material, which can be made of plastic material through injection molding, such as ABS, PA66, etc.

[0028] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A combined fan with a detachable and interchangeable motor, comprising a base, an impeller, a motor, and a PCB board, wherein the motor is mounted on the central tube of the base, the impeller is mounted on the motor housing, and the PCB board is mounted in the base, characterized in that: It also includes a dustproof insulating cover ring. The size of the base is larger than the size of the motor housing. The outer ring size of the dustproof insulating cover ring is adapted to the base, and the inner ring size of the dustproof insulating cover ring is adapted to the size of the motor housing. The center of the dustproof insulating cover ring has a through hole for mounting the motor. The motor housing is mounted on the upper end of the dustproof insulating cover ring, and the dustproof insulating cover ring is mounted on the base. The capacitor is mounted on the PCB board in a flat position, with the lowest part of the capacitor close to the bottom of the base.

2. The combined fan with a detachable and interchangeable motor based on the base as described in claim 1, characterized in that: A raised inner ring is provided near the central through hole of the dustproof insulation ring, and a mating ring is provided near the outer edge of the dustproof insulation ring. There is a mating groove between the inner ring and the mating ring. The end of the motor housing is aligned with or inserted into the mating groove but does not contact the dustproof insulation cover ring.

3. The combined fan with a detachable and interchangeable motor based on the base as described in claim 1, characterized in that: A mating edge with an L-shaped cross-section is provided at the top edge of the base, and a plugging edge protruding towards the base is provided at the outer edge of the dustproof and insulating cover ring. The plugging edge is inserted into the inner side of the mating edge and mates with the mating edge to form an assembly and fixing structure between the dustproof and insulating cover ring and the base.

4. The combined fan with a detachable and interchangeable motor based on the base as described in claim 1, characterized in that: The base contains a heat dissipation module that is independent of the base itself, and the heat dissipation module is detachably fixed to the base.

5. The combined fan with a detachable and interchangeable motor based on the base according to claim 4, characterized in that: The heat dissipation module includes a first heat dissipation module, with fixing ears at both ends of the heat dissipation module and screw posts in the base. The first heat dissipation module is installed in the base by screwing screws through the fixing ears and into the screw posts.

6. The combined fan with a detachable and interchangeable motor based on the base according to claim 5, characterized in that: The heat dissipation module also includes a second heat dissipation module. The second heat dissipation module has fixing ears on both sides and a screw post in the base. The second heat dissipation module is installed in the base by screwing screws through the fixing ears and into the screw post.

7. The combined fan with a detachable and interchangeable motor based on the base as described in claim 5, characterized in that: The base is made of aluminum alloy or metal coated with rubber, and heat dissipation holes are provided on the bottom surface of the base, facing the first heat dissipation module.

8. The combined fan with a detachable and interchangeable motor based on the base according to claim 1, characterized in that: The dustproof insulating cover ring is made of insulating material.

9. The combined fan with a detachable and interchangeable motor based on claim 1 or 8, characterized in that: The dustproof and insulating cover ring is made of plastic material and is integrally molded by injection molding.

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