CN206389217U - A Strong Heat Dissipation Type Brushless DC Generator - Google Patents

Abstract

The utility model discloses a strong heat dissipation type brushless direct current generator, the inner cavity of the casing is provided with a transmission shaft, the outer wall of the transmission shaft is sleeved with a rotating shaft, the outer wall of the rotating shaft is uniformly provided with a rotating magnet, the inner wall of the casing is uniformly provided with a coil winding, the left side of the casing is provided with a heat dissipation cover, the inner cavity of the heat dissipation cover is provided with a first heat dissipation fan, the first heat dissipation fan is sleeved on the outer wall of the transmission shaft, the right side of the casing is provided with a protection cover, the right end of the transmission shaft penetrates through the protection cover, the right end of the transmission shaft is provided with a driving wheel, the transmission shaft can drive the first heat dissipation fan and the second heat dissipation fan to dissipate heat of the device when rotating, and can take away heat through an induced air hole and a heat dissipation hole, the heat dissipation effect is good, and no additional power is needed to be provided, and the structure is simple.

Description

A Strong Heat Dissipation Type Brushless DC Generator

technical field

The utility model relates to the technical field of micro generators, in particular to a strong heat dissipation brushless DC generator.

Background technique

Micro and small brushless DC generators can be widely used in household appliances, medical equipment, industrial equipment, etc. The main function of the brushless DC generator is to realize the conversion of mechanical energy and DC electric energy. There is no spark when the brushless DC generator works, and it has little interference with radio equipment. However, the heat dissipation equipment of the current brushless DC generator is generally through The cooling fins on the outer wall of the casing are used to dissipate heat. This kind of cooling efficiency is low, and the effect is not obvious when running under continuous high temperature conditions; there are also cooling fans installed outside the machine body to dissipate heat. This kind of setting structure is complicated. Therefore, we propose an integrated strong heat dissipation brushless DC generator.

Utility model content

The purpose of this utility model is to provide a strong heat dissipation brushless DC generator, which directly integrates a pair of heat dissipation fans inside, so as to solve the problems of inconspicuous heat dissipation effect and complicated structure in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a strong heat dissipation brushless DC generator, including a casing, the inner cavity of the casing is provided with a transmission shaft, and the outer wall of the transmission shaft is sleeved with a rotating shaft , the outer wall of the rotating shaft is evenly provided with rotating magnets, the inner wall of the casing is evenly provided with coil windings, the left side of the casing is provided with a heat dissipation cover, and the inner cavity of the heat dissipation cover is provided with a first cooling fan, And the first cooling fan is sleeved on the outer wall of the transmission shaft, the right side of the casing is provided with a protective cover, the right end of the transmission shaft passes through the protective cover, the right end of the transmission shaft is provided with a transmission wheel, and the casing The right side of the inner cavity of the housing is provided with a second heat dissipation fan, and the second heat dissipation fan is sleeved on the outer wall of the transmission shaft, and the inner cavity of the casing is provided with a support grid, and the support grid is located on the left side of the second heat dissipation fan , the surface of the casing is evenly provided with air induction holes corresponding to the second heat dissipation fan, a rectifier is arranged on the top of the inner cavity of the casing, and the rectifier is located on the left side of the supporting grid, and the top of the casing A positive connection port is provided, a negative connection port is provided on the right side of the positive connection port, and cooling holes are evenly arranged on the surface of the heat dissipation cover; the first heat dissipation fan and the second heat dissipation fan are coaxial and lead to Rotate to form the same direction in the motor to strengthen the cooling airflow.

Preferably, both the positive terminal and the negative terminal are located above the rectifier.

Preferably, the left end of the transmission shaft is connected to the left side of the inner cavity of the heat dissipation cover through a bearing seat.

Preferably, the bottom of the casing is provided with a mounting base.

Compared with the prior art, the beneficial effect of the utility model is that the first heat dissipation fan and the second heat dissipation fan can be driven by the first heat dissipation fan and the second heat dissipation fan while the transmission shaft is rotating and working through the first heat dissipation fan and the second heat dissipation fan socketed on the outer wall of the transmission shaft. The fan dissipates the heat of the device, and the heat can be taken away through the air-introduction holes and the heat dissipation holes, the heat dissipation effect is good, and no additional power is required, and the structure is simple.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the casing structure of the utility model;

Fig. 3 is a schematic diagram of the structure of the heat dissipation cover of the present invention.

In the figure: 1 casing, 2 transmission shaft, 3 rotating shaft, 4 rotating magnet, 5 coil winding, 6 heat dissipation cover, 7 first heat dissipation fan, 8 protective cover, 9 transmission wheel, 10 second heat dissipation fan, 11 supporting grid , 12 air induction holes, 13 rectifiers, 14 positive wiring ports, 15 negative wiring ports, 16 cooling holes.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a strong heat dissipation brushless DC generator, including a casing 1, the inner cavity of the casing 1 is provided with a transmission shaft 2, and the outer wall of the transmission shaft 2 is covered Connected to the rotating shaft 3, the outer wall of the rotating shaft 3 is uniformly provided with a rotating magnet 4, the inner wall of the casing 1 is uniformly provided with a coil winding 5, the left side of the casing 1 is provided with a cooling cover 6, and the inner cavity of the cooling cover 6 is provided with a first Radiating fan 7, and the first cooling fan 7 is sleeved on the outer wall of the transmission shaft 2, the right side of the casing 1 is provided with a protective cover 8, the right end of the transmission shaft 2 runs through the protective cover 8, and the right end of the transmission shaft 2 is provided with a transmission wheel 9. The right side of the inner cavity of the casing 1 is provided with a second cooling fan 10, and the second cooling fan 10 is sleeved on the outer wall of the transmission shaft 2. The inner cavity of the casing 1 is provided with a supporting grid 11, and the supporting grid 11 is located on the left side of the second heat dissipation fan 10, and the surface of the casing 1 is evenly provided with air induction holes 12 corresponding to the second heat dissipation fan 10, and a rectifier 13 is provided on the top of the inner cavity of the casing 1, and the rectifier 13 is located on the support On the left side of the grid frame 11 , the top of the casing 1 is provided with a positive connection port 14 , the right side of the positive connection port 14 is provided with a negative connection port 15 , and the surface of the cooling cover 6 is evenly provided with cooling holes 16 .

The first heat dissipation fan 7 and the second heat dissipation fan 10 are coaxial and rotate in one direction, forming a same direction of enhanced heat dissipation airflow in the motor.

Wherein, the positive pole connection port 14 and the negative pole connection port 15 are all located above the rectifier 13, which facilitates the connection of the positive pole connection port 14 and the negative pole connection port 15 with the rectifier 13, and saves materials. The left side of the inner cavity is connected to make the rotation effect of the transmission shaft 2 better and more stable. The bottom of the casing 1 is provided with a mounting seat to facilitate the fixed installation of the device.

Working principle: the casing 1 and the coil winding 5 form the stator, the transmission shaft 2, the rotating shaft 3 and the rotating magnet 4 form the rotor, and the external equipment drives the transmission wheel 9 to rotate, the transmission wheel 9 drives the transmission shaft 2 to rotate, and the transmission shaft 2 drives the rotation shaft 3 Rotation, the rotating shaft 3 drives the rotating magnet 4 to rotate, that is, the rotor rotates, the rotor rotates to generate rotating magnetic force lines, the stator cuts the magnetic force lines generated by the rotor to generate current, the coil winding 5 transmits the current to the rectifier 13, and the rectifier 13 converts AC power into DC power, and the positive pole It is output through the positive terminal 14, and the negative is output through the negative terminal 15. When the transmission shaft 2 rotates, it drives the first cooling fan 7 and the second cooling fan 10 to rotate. When the device works to generate electricity, the second cooling fan 10 passes through the lead The wind hole 12 introduces external air into the device, and blows and dissipates heat from the device. The first heat dissipation fan 7 blows out the heat generated when the device works to generate power through the heat dissipation hole 16. The device can simultaneously dissipate heat in two directions when generating power, increasing heat dissipation effect, and the structure is simple, the protective cover 8 protects the device when the transmission wheel 9 is working, and prevents external factors from interfering or damaging the device. The supporting grid 11 supports the transmission shaft 2, and can also Ventilation, so that the heat dissipation effect of this device is better when it is working.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. a kind of strong heat dissipation type brushless DC generator, including casing (1), it is characterised in that：The inner chamber of the casing (1) is set There is power transmission shaft (2), the outer wall of the power transmission shaft (2) is socketed with rotating shaft (3), and the outer wall of the rotating shaft (3) is evenly arranged with rotation Magnet (4), the inwall of the casing (1), which is evenly arranged with the left of coil windings (5), the casing (1), is provided with heat dissipating housing (6), the inner chamber of the heat dissipating housing (6) is provided with the first heat emission fan (7), and the first heat emission fan (7) is socketed on the outer of power transmission shaft (2) Protective cover (8) is provided with the right side of wall, the casing (1), the right-hand member of the power transmission shaft (2) runs through protective cover (8), the transmission The right-hand member of axle (2), which is provided with the right side of drive (9), the inner chamber of the casing (1), is provided with the second heat emission fan (10), and second dissipates Heat fan (10) is socketed on the outer wall of power transmission shaft (2), and the inner chamber of the casing (1) is provided with support rack (11), and support rack (11) it is located at the left side of the second heat emission fan (10), the surface of the casing (1) is evenly arranged with the second heat emission fan (10) relatively The air inducing hole (12) answered, the inner cavity top of the casing (1) is provided with rectifier (13), and rectifier (13) is located at support rack (11) positive terminal mouthful (14) is provided with the top of left side, the casing (1), the right side of the positive terminal mouthful (14) is set There is negative terminal mouthful (15), the surface of the heat dissipating housing (6) is evenly arranged with heat emission hole (16)；Described the first heat emission fan (7) It is coaxial with the second heat emission fan (10), leads to rotation, reinforcing radiating airflow in the same direction is formed in motor.

2. strong heat dissipation type brushless DC generator according to claim 1, it is characterised in that：The positive terminal mouthful (14) The top of rectifier (13) is respectively positioned on negative terminal mouthful (15).

3. strong heat dissipation type brushless DC generator according to claim 1, it is characterised in that：A left side for the power transmission shaft (2) End is by bearing block with being connected on the left of the inner chamber of heat dissipating housing (6).

4. strong heat dissipation type brushless DC generator according to claim 1, it is characterised in that：The bottom of the casing (1) It is provided with mounting seat.