Heat dissipation device of fan motor

Abstract

The utility model relates to the technical field of fan motors, in particular to a heat dissipation device of a fan motor, which comprises a casing, an impeller is arranged in the casing, fan-shaped sealing blocks are rotatably connected to ports on two sides of the casing respectively, and heat dissipation channels are arranged on the sealing blocks from planes of inner side walls of the sealing blocks to cambered surfaces of the sealing blocks. Teeth which are evenly distributed are arranged on the arc-shaped surfaces of the sealing blocks, each sealing block is meshed with a transmission gear below, a linkage device is arranged in the machine shell, transmission shafts extend outwards from the corresponding positions of the two sides of the linkage device respectively, and the transmission gears on the two sides are controlled by the linkage device to keep different rotation directions. Rotatable sealing blocks are symmetrically arranged on the two sides of the machine shell and can be used for increasing the temperature in the machine shell at the initial stage of starting of the motor, when the temperature is too high, a heat dissipation channel can be rapidly opened, heat dissipation is convenient, in addition, the sealing blocks can effectively prevent external dust from entering equipment, and normal use of the fan motor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fan motors, and in particular to a heat dissipation device for fan motors. Background Art

[0002] Under normal circumstances, the fan motor is installed inside the casing. When the motor is working, a lot of heat will gather around it, and this heat will often be sent out from the air outlet along with the air. Generally speaking, the ambient temperature range for normal operation of the motor is between -15℃ and 40℃, and this temperature range can ensure the normal operation and service life of the motor. The existing motor heat dissipation device has the following problems. On the one hand, due to untimely heat dissipation, heat accumulation can easily burn the drive motor and cause the fan to malfunction; on the other hand, directly opening a heat dissipation port on the casing will allow external dust to enter the casing, affecting the normal performance of the motor. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a heat dissipation device for a fan motor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heat dissipation device for a fan motor comprises a casing, a support frame is arranged inside the casing, an impeller is installed at the bottom of the support frame, the impeller is directly opposite to the air outlet of the casing, through openings are respectively opened on the inner walls on both sides of the casing, the top walls of the through openings are both provided with mounting seats, a fan-shaped sealing block is rotatably connected inside the mounting seat, and a heat dissipation channel is opened from the plane of the inner wall to the arc surface of the sealing block;

[0006] The arc surface of the sealing block is provided with uniformly distributed teeth, and at the same time, the inner wall of the casing is provided with a transmission gear meshing with the corresponding sealing block below each sealing block, and a linkage is provided inside the casing, and transmission shafts extend outward at corresponding positions on both sides of the linkage, and the transmission shafts on both sides are coaxially connected to the transmission gears on both sides and enable the transmission gears on both sides to maintain different rotation directions.

[0007] In a preferred technical solution, a servo motor for driving the impeller to rotate is arranged on the top of the support frame.

[0008] In a preferred technical solution, the linkage comprises an installation box arranged inside the housing, and a bevel gear assembly for maintaining meshing transmission, a first linkage wheel and a second linkage wheel are arranged at the center of the installation box.

[0009] In a preferred technical solution, the bevel gear assembly includes a driving bevel gear arranged on the top wall of the mounting box and two driven bevel gears arranged on the opposite side walls of the mounting box. There are two groups of first interlocking wheels, and the first interlocking wheels are arranged between the two driven bevel gears. The driven bevel gears and the first interlocking wheels on the same side rotate coaxially through a rotating shaft.

[0010] In a preferred technical solution, the installation box is also provided with a power motor for controlling the forward and reverse rotation of the active bevel gear.

[0011] In a preferred technical solution, the number of the second linkage wheels is two and they are staggered and arranged on both sides of the inner wall of the installation box, and the first linkage wheel and the second linkage wheel, which are aligned in position, are connected by a linkage belt transmission.

[0012] In a preferred technical solution, mounting frames for connecting the second linkage wheel are respectively provided on both sides of the interior of the mounting box.

[0013] The beneficial effects of the utility model are:

[0014] The fan structure proposed in this solution solves the problem that the fan motor has poor heat dissipation effect and is easy to get dust into it, affecting its normal use. Rotatable sealing blocks are symmetrically arranged on both sides of the casing, which can be used to increase the temperature inside the casing at the initial stage of motor startup. When the temperature is too high, the heat dissipation channel can be quickly opened to facilitate heat dissipation. In addition, the sealing block can also effectively prevent external dust from entering the interior of the equipment, ensuring the normal use of the fan motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the internal structure of the casing proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the linkage inside the housing proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the linkage inside the casing proposed by the utility model when viewed from above.

[0018] In the figure: 1. casing; 2. support frame; 3. servo motor; 4. impeller; 5. air outlet; 6. mounting seat; 7. sealing block; 8. heat dissipation channel; 9. transmission gear; 10. linkage; 11. driving bevel gear; 12. driven bevel gear; 13. first linkage wheel; 14. mounting frame; 15. second linkage wheel; 16. linkage belt; 17. transmission shaft. DETAILED DESCRIPTION

[0019] 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.

[0020] In this embodiment, refer to Figure 1-3 A heat dissipation device for a fan motor includes a housing 1, a support frame 2 is arranged inside the housing 1, an impeller 4 is installed at the bottom of the support frame 2, and a servo motor 3 for driving the impeller 4 to rotate is arranged on the top of the support frame 2. The impeller 4 is directly opposite to the air outlet 5 of the housing 1.

[0021] The inner walls of both sides of the housing 1 are respectively provided with openings, and the top walls of the openings are provided with mounting seats 6, and the interior of the mounting seats 6 is rotatably connected with a fan-shaped sealing block 7, as shown in the attached Figure 1 As shown in FIG. 1 , the sealing block 7 is provided with a heat dissipation channel 8 from the plane of its inner side wall to its arc surface. Figure 1 The arc surface of the sealing block 7 is provided with uniformly distributed teeth. In addition, the inner wall of the housing 1 is provided with a transmission gear 9 meshing with the corresponding sealing block 7 below each sealing block 7. A linkage 10 is provided inside the housing 1. Transmission shafts 17 extend outward at corresponding positions on both sides of the linkage 10. The transmission shafts 17 on both sides are respectively connected to the transmission gears 9 on both sides in a coaxial rotation manner and keep the transmission gears 9 on both sides in different rotation directions.

[0022] The structure of the linkage 10 needs to be specifically described. Figure 2 or attached Figure 3 As shown, the linkage 10 includes an installation box arranged inside the housing 1, and a bevel gear assembly for maintaining meshing transmission, a first linkage wheel 13 and a second linkage wheel 15 are arranged at the center of the installation box:

[0023] The bevel gear assembly includes a driving bevel gear 11 arranged on the top wall of the mounting box and two driven bevel gears 12 arranged on the opposite side walls of the mounting box. There are two groups of first interlocking wheels 13, and each first interlocking wheel 13 is arranged between the two driven bevel gears 12. The driven bevel gears 12 and the first interlocking wheels 13 on the same side rotate coaxially through a rotating shaft.

[0024] There are two sets of second linkage wheels 15, which are staggered and arranged on both sides of the inner wall of the installation box, and the first linkage wheels 13 and the second linkage wheels 15 are aligned and connected to each other through a linkage belt 16. It should be supplemented that mounting brackets 14 for connecting the second linkage wheels 15 are respectively arranged on both sides of the interior of the installation box.

[0025] When the servo motor 3 is just started, the sealing blocks 7 on both sides are in a closed state, and their outer sides are flush with the outer wall of the housing 1, which can play a role in sealing and dustproofing, and at the same time can maintain the internal temperature of the housing 1, ensuring that the servo motor 3 can quickly reach the working temperature. After the servo motor 3 has been working for a period of time, the internal temperature of the housing 1 is relatively high. Therefore, the transmission of the bevel gear assembly in the installation box can be controlled, and the two driven bevel gears 12 are driven to maintain opposite rotation states through the rotation of the active bevel gear 11, and the first linkage wheel 13 and the second linkage wheel 15 are used to control the rotation of the corresponding transmission shaft 17. Here, the transmission shafts 17 on both sides will also maintain opposite rotation states. Finally, the two transmission gears 9 rotate and control the sealing blocks 7 on both sides to turn outward synchronously through meshing, so that the heat dissipation channel 8 inside is connected to the outside, so that the internal high-temperature gas will quickly escape outward along the heat dissipation channel 8. The heat dissipation channel 8 is connected to the outside, and its outer port is downward, so dust can also be prevented from entering the housing 1.

[0026] 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 heat dissipation device for a fan motor, comprising a housing (1), a support frame (2) being arranged inside the housing (1), an impeller (4) being installed at the bottom of the support frame (2), the impeller (4) being directly opposite to an air outlet (5) of the housing (1), characterized in that: The inner walls of both sides of the housing (1) are respectively provided with openings, the top walls of the openings are provided with mounting seats (6), a fan-shaped sealing block (7) is rotatably connected inside the mounting seat (6), and a heat dissipation channel (8) is provided on the sealing block (7) from the plane of the inner wall to the arc surface thereof; The arc surface of the sealing block (7) is provided with uniformly distributed teeth, and the inner wall of the housing (1) is provided with a transmission gear (9) below each sealing block (7) and meshing with the corresponding sealing block (7). A linkage (10) is provided inside the housing (1), and transmission shafts (17) extend outward at corresponding positions on both sides of the linkage (10). The transmission shafts (17) on both sides are respectively connected to the transmission gears (9) on both sides in a coaxial rotation manner so that the transmission gears (9) on both sides maintain different rotation directions.

2. A heat dissipation device for a fan motor according to claim 1, characterized in that: A servo motor (3) for driving the impeller (4) to rotate is arranged on the top of the support frame (2).

3. The heat dissipation device for a fan motor according to claim 1, characterized in that: The linkage (10) comprises an installation box arranged inside the housing (1), and a bevel gear assembly for maintaining meshing transmission, a first linkage wheel (13) and a second linkage wheel (15) are arranged at the center of the installation box.

4. The heat dissipation device for a fan motor according to claim 3, characterized in that: The bevel gear assembly comprises a driving bevel gear (11) arranged on the top wall of the installation box and two driven bevel gears (12) arranged on opposite side walls of the installation box. The number of first linkage wheels (13) is two groups, and the first linkage wheels (13) are arranged between the two driven bevel gears (12). The driven bevel gears (12) and the first linkage wheels (13) on the same side rotate coaxially with each other through a rotating shaft.

5. The heat dissipation device for a fan motor according to claim 3, characterized in that: The second linkage wheels (15) are provided in two groups and are staggered and arranged on both sides of the inner wall of the installation box respectively. The first linkage wheel (13) and the second linkage wheel (15) are aligned and connected to each other through a linkage belt (16).

6. The heat dissipation device for a fan motor according to claim 5, characterized in that: Mounting frames (14) for connecting the second linkage wheel (15) are respectively arranged on both sides of the interior of the mounting box.

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