TWM531093U - Motor heat dissipation structure - Google Patents

Description

Motor heat dissipation structure

The present invention is a heat dissipation structure of a motor, in particular, a motor having multiple heat dissipation paths and capable of exerting a more effective heat dissipation effect, so that the inside of the motor casing can exert the highest output power of the motor operation due to the difficulty of accumulating heat, and further Improve the operating efficiency of the motor, while also extending the life of the motor.

In today's technology industry, the motor is a commonly used power object. However, whether it is a large motor with high power or a small motor with low power, it is easy to drive inside the motor casing after the motor starts the rotor. Accumulated high heat, due to the lack of a heat dissipation structure that can eliminate the high temperature generated by the motor operation in a timely manner, the high heat accumulated inside the motor will cause the magnetic force of the magnet to decay, and the running efficiency of the motor will gradually decrease, when the temperature rises. After a certain degree, the insulation of the enameled coil in the armature is more damaged, which causes a short circuit of the enameled coil to burn the entire motor, and even derive other dangers. In order to prevent such a deficiency, the currently widely used technology attaches a heat-dissipating fan to one end of the rotating shaft of the motor to suppress the rapid increase of the temperature of the motor during operation. However, this technique only allows the cooling fan to advance. The airflow is blown through the peripheral surface of the casing of the motor, and it is practically impossible to directly convey the forward airflow into the inside of the motor casing, which cannot effectively dissipate the inside of the motor at a timely time, so the inside of the casing of the motor used at this stage is The shortcomings of easy heat accumulation are still unable to overcome the solution.

The main purpose of this creation is to provide a heat dissipation structure for the motor, which has multiple heat dissipation paths and can exert a more effective heat dissipation effect.

The secondary purpose of the present invention is to provide a heat dissipation structure for a motor that incorporates a cover body at the opening of the housing, the front intake air flow generated by the cover body and the cooling fan blade, and the axis of the motor rotating shaft The direction lines are facing each other in the positive direction. The outer peripheral surface of the central shaft seat of the cover body is provided with a plurality of spaced-apart drainage ports, and the central shaft seat is a conical central shaft seat, and the cooling shaft is facing the cooling fan blade A collecting ring cover extends from the cover body, and the collecting ring cover is located at a periphery of the plurality of drainage openings, so that the circular swirling forward airflow follows the frame surrounding space of the collecting ring cover and the conical central axle seat Further, the inlet port directly enters the inner space of the casing of the motor, and the high temperature generated in the inner space of the casing during the operation of the motor can be eliminated in a timely manner.

Another main object of the present invention is to provide a heat dissipation structure of a motor, the motor is coupled to a cover body at an opening of the housing, and a plurality of air guiding covers are disposed on the circumferential surface of the cover body, and the air guiding cover is provided The utility model has a top plate, wherein the two side edges of the top plate each extend a side plate integrally connected with the cover body, and an air guiding port is formed between the two side plates, the top plate and the circumferential surface of the cover body, when the shell and the cover body are combined, The air guiding hood can be located above the venting opening of the casing, and the air guiding opening of the air guiding hood can directly guide the previous intake air flow generated when the cooling fan blade rotates, and the cooling fan blade mounted on the rotating shaft of the motor is When the circumferential rotation is performed, the air flow generated by the air can directly enter the vent of the motor casing according to the air hood, and enter the inside of the casing of the motor from the vent to cause heat dissipation in the internal space of the casing, and then The air outlet on the closed surface of the motor casing leads the high-temperature airflow, so that the motor has heat dissipation and is not easy to accumulate heat, thereby prolonging the service life of the motor.

Another main purpose of the present invention is to provide a heat dissipating structure of the motor, which forms a through-and-forward unobstructed through-hole between the two raised air hoods, so that the intake air flows through the through-hole before entering the interior of the casing. The outer surface of the casing is blown so that the outer casing is also dissipated at the same time.

Another main purpose of the present invention is to provide a heat dissipation structure of a motor, especially when operating in a high temperature geographical environment, the motor does not cause burnt phenomenon, and for this purpose, the physical object of the creation is The 70 ° C confined space was continuously tested for a long time, and it was found that it would not cause burnt damage when used in a high temperature geographical environment.

Since the principle of operation of the motor and the internal related structure are well known in the art, the description will not be repeated.

Please refer to the first to third figures. The present invention is a heat dissipation structure of a motor, which comprises a cylindrical casing 1 . One end of the casing 1 is a closed surface 11 and is disposed on the sealing surface 11 . a plurality of air outlets 13 are separated, and the other end of the housing 1 has an opening 12, and at least one venting opening 10 is formed on the circumferential surface of the housing 1 to make the interior of the motor housing 1 Airflow can be generated outside the motor housing 1. The housing 1 is provided with components necessary for motor construction, such as the rotor 5, the coil 6 and the magnet 7, in the internal space 14, and a rotating shaft 8 is provided at the axis of the closing surface 11 at one end of the housing 1 and the opening 12 at the other end. One end of the rotating shaft 8 extending from the closing surface 11 is an output end 80, and the output end 80 can be connected to the relevant transmission component, and the motor can perform work after the rotating shaft 8 rotates. The motor can be sleeved around the outer side of the casing 1 with a magnetic material 3 of the metal material. The magnetic coil 3 has the function of magnetic conduction, and the efficiency of the motor can be improved when the motor performs work.

Referring to FIGS. 4 and 5, a cover 2 is formed at a central pivot point of the cover 2 to form a central shaft seat 20 having a conical shape 22 of a shaft hole 21, and a cross-sectional diameter of the central shaft seat 20 of the conical shape 22 The cross-sectional diameter of the cover body 2 is gradually increased from the bottom end of the cover body 2, and a plurality of spaced-apart drain ports 23 are provided on the outer periphery of the central shaft base 20, and a wind collecting ring cover 24 extends from the outer surface of the cover body 2, The air collecting ring cover 24 is integrally formed with the cover body 2, and the air collecting ring cover 24 is located at the periphery of the plurality of drainage openings 23. The inner surface of the cover body 2 is provided with positioning sleeves 281 and 282 and is completely penetrated. Through holes 271, 272 (refer to the fifth figure). A plurality of raised air hoods 25 are disposed on the circumferential surface of the cover body 2, and the air hoods 25 have a top plate 251. The two side edges of the top plate 251 each extend a side plate 252 integrally connected with the cover body 2, 253, an air guiding opening 254 is formed between the two side plates 252, 253, the top plate 251 and the circumferential surface of the cover body 2, and a through-hole 26 is formed between the two raised air guiding covers 25 without being blocked; 2, the opening 12 of the casing 1 is combined and closed, and the conductive inserts 81 and 82 for conductive purposes can fit directly into the through holes 271 and 272 of the cover 2 and protrude beyond the through holes 271 and 272. The pins 83, 84 in the housing 1 are sleeved on the positioning sleeves 281, 282, so that the cover 2 is fixed at the opening 12 of the housing 1, and the cover 2 is coupled to the housing 1, and the rotating shaft 8 is The outermost end, that is, the connecting end 89, can be extended by the shaft hole 21 of the center shaft base 20, and the bearing (not shown) is wrapped in the center shaft seat 20, so that the rotating shaft 8 can be smoothly rotated. .

Referring to the first figure, a cooling fan blade 4 has a shaft hole 40, and the heat dissipation fan blade 4 is fixed to the coupling end 89 of the rotating shaft 8 with its shaft hole 40.

The state after the combination of the casing 1, the cover 2 and the cooling fan blades 4 is as shown in the second and third figures. Referring to the sixth to tenth drawings, when the motor rotating shaft 8 is operated, the cooling fan blades 4 will rotate synchronously to generate a circular swirling forward airflow, that is, located on the right side of the cooling fan blade 4 (in the direction of the view of the sixth figure) The airflow will be sucked in and advancing to the left side of the cooling fan blade 4. This forward airflow will be guided by the structural design of the multiple heat dissipation paths of the present creation and enter the internal space 14 of the casing 1, as shown in the seventh figure, The high temperature generated in the internal space 14 of the casing 1 during motor operation is effectively eliminated in a timely manner. The structural design of the multiple heat dissipation paths of the present invention and the effects thereof can be referred to in the sixth to tenth drawings. Due to the previous intake air flow generated by the cover body 2 and the heat dissipation fan blades 4, the two axes appear in the axial direction of the motor rotation axis 8 Facing the front side, and by the structure of the central shaft seat 20 of the conical shape 22, the heat dissipation path A of the circular swirling forward airflow follows the frame surrounding space of the collecting ring cover 24 and the central shaft seat 20 of the conical shape 22, Further, the drain port 23 directly enters the inner space 14 of the casing 1 of the motor. The heat dissipation path A is as shown in FIGS. 8 and 10, and the high-temperature airflow generated in the inner space 14 when the motor is operated can pass through the casing 1 The air outlet 13 of the closing surface 11 is led out, and the high temperature generated in the internal space 14 of the casing 1 during motor operation can be eliminated in a timely manner. Where the circular swirling forward airflow is larger than the circular area outside the range of the collecting ring cover 24 of the cover body 2, it can be used as the heat dissipation path B and the heat dissipation path C, respectively, and the heat dissipation path B of the forward airflow can directly follow the cover. The air guiding opening 254 of the air guiding cover 25 of the body 2 enters the air vent 10 of the motor casing 1, wherein the forward air flow is surrounded by the two side plates 252, 253, the top plate 251 and the circumferential surface of the cover body 2, and the air guiding opening 254 is formed. Ingress, the air flow can be effectively concentrated, and the air flow enters the inner space 14 of the casing 1 of the motor from the vent 10, so that the internal space 14 in the casing 1 generates heat dissipation (refer to the seventh and ninth drawings at the same time). However, the phenomenon and lack of heat accumulation in the casing 1 are less likely to occur. In addition, the heat dissipation path C is used as the intake air flow before entering the inside of the casing 1, and can be blown through the outer surface of the casing 1 through the through joint 26 between the two air hoods 25, so that the outer casing 1 is also dissipated at the same time, that is, As shown in the sixth figure, the multiple heat dissipation paths can be formed to exert a more effective heat dissipation function, and the heat dissipation path C can substantially play the heat dissipation function together with the heat dissipation paths A and B, so that the motor can not be burned. The phenomenon of damage.

In summary, the present invention provides a heat dissipation structure of a motor that is provided on the motor side and that has a plurality of heat dissipation paths for the air flow generated by the operation, and that can provide a more effective heat dissipation effect. a cover body 2 at the opening 12 of the casing 1 and a plurality of spaced-apart drainage openings 23 provided in the cover body 2, the structure providing a heat dissipation path A, and the circumferential surface of the cover body 2 is provided a plurality of air guiding hoods 25, the air guiding hood 25 can be positioned above the venting opening 10 of the casing 1, and the air guiding opening 254 of the air guiding hood 25 can directly guide the previous intake air flow generated when the cooling fan blade 4 rotates. As the heat dissipation path B, the joint 26 between the two air hoods 25 can provide a heat dissipation path C, so that the intake air flows through the casing 1 through the through joint 26 between the two air hoods 25 before entering the inside of the casing 1. The outer surface allows the outer casing 1 to simultaneously achieve a heat dissipation effect, and forms a plurality of heat dissipation paths to exert a more effective heat dissipation effect, so that the inside of the casing 1 of the motor can exhibit the highest output power of the motor operation due to the difficulty of accumulating heat, thereby improving The operating efficiency of the motor can also extend the motor The life, especially when the creation is used in a high-temperature geographical environment, the motor will not be burned and damaged. It is obvious that the creation is practical and progressive.

(1) ‧‧‧Shell
(10) ‧ ‧ vents
(11) ‧ ‧ closed face
(12) ‧ ‧ openings
(13) ‧‧‧air outlet
(14) ‧‧‧Internal space
(2) ‧ ‧ cover
(20)‧‧‧Center shaft seat
(21)‧‧‧Axis hole
(22)‧‧‧Conical
(23)‧‧‧Drainage
(24) ‧‧‧Wind ring cover
(25) ‧‧‧wind hood
(251)‧‧‧ top board
(252) (253) ‧‧‧ side panels
(254)‧‧‧air guide
(26)‧‧‧through seams
(271) (272) ‧‧‧through holes
(281)(282)‧‧‧ Positioning post
(3) ‧ ‧ magnetic coil
(4) ‧‧‧Dissipation fan blades
(40)‧‧‧Axis hole
(5) ‧‧‧Rotor
(6)‧‧‧ coil
(7)‧‧‧ Magnet
(8)‧‧‧Rotary axis
(80) ‧‧‧Extension
(81) (82)‧‧‧Electrical inserts
(83) (84) ‧ ‧ pin
(89) ‧‧‧Linked end

The first picture is an exploded view of some parts of the motor. The second picture: a perspective view of the motor of the creation. The third picture is a perspective view of another angle of the motor. The fourth picture is a perspective view of the cover body with the windshield of the present invention. The fifth figure is another perspective view of the cover body with the windshield. Fig. 6 is a view showing the state of use of the appearance plane and the forward airflow of the present invention to dissipate the outer surface of the motor casing through the through-hole. Figure 7 is a cross-sectional view of the sixth section A-A showing the state of use of the forward airflow into the motor housing for heat dissipation. Figure 8: The front side plan of the motor. Figure IX: The state of use of the forward airflow following the air hood into the vent of the motor housing and into the motor housing to provide heat dissipation. Figure 10: A diagram showing the state of use in which the forward airflow enters the motor housing to provide heat dissipation.

(1) ‧‧‧Shell

(10) ‧ ‧ vents

(11) ‧ ‧ closed face

(12) ‧ ‧ openings

(14) ‧‧‧Internal space

(2) ‧ ‧ cover

(20)‧‧‧Center shaft seat

(21)‧‧‧Axis hole

(22)‧‧‧Conical

(23)‧‧‧Drainage

(24) ‧‧‧Wind ring cover

(25) ‧‧‧wind hood

(251)‧‧‧ top board

(252) (253) ‧‧‧ side panels

(254)‧‧‧air guide

(26)‧‧‧through seams

(271) ‧‧‧through holes

(3) ‧ ‧ magnetic coil

(4) ‧‧‧Dissipation fan blades

(40)‧‧‧Axis hole

(8)‧‧‧Rotary axis

(80) ‧‧‧Extension

(81) (82)‧‧‧Electrical inserts

(83) (84) ‧ ‧ pin

(89) ‧‧‧Linked end

Claims (5)

A heat dissipation structure for a motor, comprising: a housing having an inner space, one end of the housing being a closed surface having a plurality of air outlets on the closed surface, and the other end of the housing has an opening; The rotating shaft is mounted in the casing for rotation. One end of the output end can extend out of the sealing surface, and the other end is a connecting end. A cover body forms a center with a shaft hole at a central axis point of the cover body. The shaft seat and the rotating shaft can extend through the shaft hole of the central shaft seat; a heat dissipating fan blade is embedded on the connecting end of the rotating shaft and can rotate synchronously with the rotating shaft; and the cover body is located at the central shaft seat The outer periphery is provided with a plurality of spaced-apart drainage openings, and the outer surface of the cover body extends out of a collecting air ring cover, and the collecting air ring cover is located at a periphery of the plurality of drainage openings to generate a cooling fan fan. The circular swirling forward airflow follows the frame surrounding space of the collecting ring cover and the central shaft seat, and then directly enters the inner space of the motor casing by the drain opening. The heat dissipation structure of the motor of claim 1, wherein the air collection ring cover is integrally formed with the cover body. The heat dissipation structure of the motor of claim 1, wherein the outer circumferential surface of the cover body is provided with a plurality of raised air hoods, the air hood having a top plate, and the two side edges of the top plate Extending a side panel integrally connected with the cover body, and forming an air guiding opening between the two side panels, the top panel and the circumferential surface of the cover body, and when the shell and the cover body are combined, the air deflector can be positioned in the ventilation of the shell Above the mouth, and the air guiding vent of the air guiding hood can directly guide the previous intake air flow generated when the cooling fan blade rotates. The heat dissipation structure of the motor according to claim 3, wherein a through-and-forward unobstructed through-hole is formed between the two raised air hoods, so that the intake air flows through the through-hole before entering the interior of the casing. The outer surface of the casing is blown so that the outer casing is also dissipated at the same time. The heat dissipation structure of the motor of claim 1, wherein a set of ring-shaped magnetic coils disposed on an outer surface of the casing is made of a metal material having magnetic permeability. Can improve the efficiency of the motor.