TW202123580A - Improved heat radiation structure of motor including a combination of a housing and a fan module - Google Patents

Abstract

Provided is an improved heat radiation structure of a motor. The improved heat radiation structure includes a combination of a housing and a fan module. The housing is provided with a first part and a second part which collectively define an internal space for accommodating the fan module. The blades of the fan module are enabled to face the interior direction of the housing, so that the risk that a person touches the running blades is reduced. The first part is provided with an airflow input port of which the area is increased. Also, at a position corresponding to the input port, the second part is provided with an airflow output port of which the area is greater than that of the input port, so that the airflow resistance is reduced (or the airflow output efficiency is increased); and the situation that the heat radiation effect is affected due to small areas of an airflow inlet and an airflow outlet, and high airflow resistance in the prior art is relieved.

Description

Improved heat dissipation structure of motor

The present invention relates to an improved structure for heat dissipation of a motor; in particular, it refers to a technology for reducing airflow resistance with a corresponding (or symmetrical) configuration (cross-sectional) area of the air inlet and outlet that is larger than the conventional structure.

Electric motors, or motors, can convert electrical energy into mechanical energy to drive machinery for rotation, vibration or linear motion, and are widely used in the fields of automatic control and electromechanical integration. The basic structure of an electric motor or a motor is mainly composed of a stator (Stator), a rotor (Rotor) and/or a coil, which is a known art. For example, Taiwan No. 108207079 "Motor", No. 101209356 "Brushless Motor Structure", No. 107207848 "Brushless Motor for Electric Bicycle" patents, etc., provide typical examples.

As those who are familiar with this technique know, this technique is already in the field of technological maturity in the technological development space of the industry. This is because the previously disclosed cases include the improvement or design of the structure of each part of the motor; for example, Taiwan No. 108205937 "Single Wire Surrounding Brushless Motor Stator", No. 99215752 "Blades for DC Brushless Motors" , No. 107214978 "Motor Cooling Kit", No. 107203121 "Motor Frame", No. 107203602 "Motor Housing" patent cases, etc., provide specific examples.

A topic related to the structure and application of such motors or motors is that conventional motors also include the use of fans to drive airflow and provide heat dissipation. In order to achieve the mechanism of air flow, multiple partitions (or brackets) are provided on the front, rear or cover of the motor to define multiple air inlets and outlets; and, by the configuration of multiple partitions, the size is as small as possible The (cross-sectional) area of the entrance and/or exit is used to prevent the safety of people from touching the fan blades due to negligence or other conditions.

As those who are familiar with this technique know, the above-mentioned conventional structure with safety considerations will increase air flow resistance and relatively reduce the heat dissipation effect of the motor; in other words, it is an attempt to make conventional motors have ideal heat dissipation. Function and high security are a dilemma.

Representatively, these reference materials show the design skills of related conventional motors or motors in terms of structure and application; they also reflect some of the problems that exist in the actual use of these motor devices. If redesigning the combined structure of the motor device to make its structure different from the conventional structure, it will be able to change its usage pattern, which is different from the old method; in essence, it will also establish a more ideal combination pattern. In particular, it is considered that the motor device has an ideal heat dissipation function and a higher safety mechanism at the same time.

These issues are not taught or specifically exposed in the above-mentioned reference materials.

The main purpose of the present invention is to provide an improved heat dissipation structure for a motor, which includes a combination of a casing and a fan module. The housing has a first part and a second part, which jointly define an internal space, accommodate the fan module, and make the blades of the fan module face the inner direction of the housing, reducing the risk of personnel touching the rotating blades. The first part is provided with an airflow input port with an enlarged area corresponding to the position of the input port, and the second part is provided with an airflow output port with an area larger than the input port to reduce airflow resistance (or improve airflow output efficiency); The inlet and outlet areas are small, and the airflow resistance is large, which affects the heat dissipation effect.

Please refer to Figures 1, 2 and 3, the improved heat dissipation structure of the motor of the present invention includes a combination of a casing and a fan module; they are denoted by reference numbers 10 and 20, respectively. The housing 10 has a first part 11 and a second part 12 (the first part 11 and the second part 12 include an end cover structure), which jointly define an internal space 13 and accommodate the fan module 20, the motor core 30, and the rotating shaft 40 And other parts.

In the embodiment adopted, the first part 11 is provided with a plurality of brackets 14 to define an airflow input port 15 with an enlarged area; corresponding to the position of the input port 15 (or symmetrical), the second part 12 is also provided with a plurality of brackets 14. Define an airflow output port 16 with an area greater than (or equal to) the input port 15.

It can be understood that, compared with the conventional structure, the first part 11 and the second part 12 reduce the number (or width) of the bracket 14 while increasing the (cross-sectional) area of the input port 15 and/or the output port 16 with In order to reduce the airflow resistance (or improve the airflow output efficiency); improve the situation of the air inlet and outlet areas of the known art, the airflow resistance is large, and the cooling effect is affected.

In the embodiment adopted, the first part 11 and the second part 12 are configured with three brackets 14 which respectively define a symmetrical structure of three input ports 15 and output ports 16. The corresponding or symmetrical structure of the input port 15 and the output port 16 enables the air flow path to obtain the shortest linear distance.

The figure also depicts that the fan module 20 (combined rotating shaft 40) is arranged in the area of the second part 12; the fan module 20 includes a disk 21 and a plurality of blades 22 arranged on the disk 21.

In detail, the disk 21 of the fan module 20 faces the outer direction of the casing 10 (or the direction of the output port 16 of the second part 12) to form a shielding or blocking wall structure; and the blades 22 of the fan module 20 face the casing 10Internal direction to reduce the risk of personnel touching the moving blades.

Figure 3 shows that when the fan module 20 rotates with the rotating shaft 40 to drive the blades 22 to rotate, the air flow (or air) enters the housing 10 (or chamber 13) from the input port 14 of the first part 11, and then from the first part 11 The output port 16 of the two parts 12 outputs, providing a heat dissipation type.

Typically, compared with the old method, the improved heat dissipation structure of this motor includes the following advantages and considerations:

1. The structure of the casing 10 and the fan module 20 has been redesigned; for example, the first part 11 of the casing 10 is provided with a larger input port 15, and the second part 12 is provided with a larger area than the input port 15. The output port 16, and the input port 15 and the output port 16 constitute corresponding (or symmetrical) structural positions; the disk 21 of the fan module 20 forms a shielding structure, and the blades 22 are arranged in the direction of the housing 10, etc. Obviously different from the conventional structure and operation pattern.

2. In particular, the structural combination of the casing 10 and the fan module 20 has an ideal heat dissipation and higher safety mechanisms; it significantly reduces airflow resistance (or improves airflow output efficiency), and improves The air inlet and outlet areas of the known art are small, the air resistance is large, and the heat dissipation effect is affected.

Therefore, the present invention provides an effective improved heat dissipation structure for the motor. Its space type is different from the conventional ones, and it has advantages that are unmatched in the old method. It has shown considerable progress, and it has fully conformed to it. The essentials of an invention patent.

However, the above are only feasible embodiments of the present invention, and are not used to limit the scope of implementation of the present invention. That is, all the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention are covered by the scope of the present invention patent. .

10: Shell

11: The first part

12: Part Two

13: Internal space

14: Bracket

15: Input port

16: output port

20: Fan module

21: plate

22: blade

30: Motor core

40: Rotating shaft

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 2 is an exploded schematic diagram of the structure of Figure 1; the figure depicts the structure of the motor core and the fan module.

Figure 3 is a schematic diagram of the plan structure of Figure 1.

10: Shell

11: The first part

12: Part Two

13: Internal space

14: Bracket

15: Input port

16: output port

20: Fan module

21: plate

22: blade

30: Motor core

40: Rotating shaft

Claims (8)

An improved heat dissipation structure for a motor, including a combination of a casing (10) and a fan module (20); The casing (10) has a first part (11) and a second part (12), which jointly define an internal space (13) and accommodate the fan module (20); The first part (11) is provided with a plurality of brackets (14) to define the airflow input port (15) corresponding to the position of the input port (15), and the second part (12) is provided with a plurality of brackets (14) to define the airflow Output port (16); the area of the output port (16) is greater than or equal to one of the input ports (15). For the improved heat dissipation structure of the motor described in the first item of the scope of patent application, the housing (10) is provided with a motor core (30) and a rotating shaft (40). For the improved heat dissipation structure of the motor described in item 1 of the scope of patent application, the first part (11) and the second part (12) are equipped with three brackets (14), and three input ports (15) are respectively defined. ), the structure of the output port (16). For the improved heat dissipation structure of the motor described in item 2 of the scope of patent application, the first part (11) and the second part (12) are equipped with three brackets (14), and three input ports (15) are respectively defined. ), the structure of the output port (16). The improved heat dissipation structure of the motor described in the first item of the scope of patent application, wherein the fan module (20) is arranged in the area of the second part (12); the fan module (20) includes a disc (21) and a disc (21) arranged on the disc (21) Multiple blades (22) on top; The disk (21) of the fan module (20) faces the outer direction of the casing (10); and the blades (22) of the fan module (20) face the inner direction of the casing (10). For the improved heat dissipation structure of the motor described in the second item of the scope of patent application, the fan module (20) is arranged in the area of the second part (12); the fan module (20) includes a disc (21) and a disc (21) arranged on the disc (21) Multiple blades (22) on top; The disk (21) of the fan module (20) faces the outer direction of the casing (10); and the blades (22) of the fan module (20) face the inner direction of the casing (10). For the improved heat dissipation structure of the motor described in item 3 of the scope of patent application, the fan module (20) is arranged in the area of the second part (12); the fan module (20) includes a disc (21) and a disc (21) arranged on the disc (21) Multiple blades (22) on top; The disk (21) of the fan module (20) faces the outer direction of the casing (10); and the blades (22) of the fan module (20) face the inner direction of the casing (10). For the improved heat dissipation structure of the motor described in item 4 of the scope of patent application, the fan module (20) is arranged in the area of the second part (12); the fan module (20) includes a disk (21) and a disk (21) arranged on the disk (21) Multiple blades (22) on top; The disk (21) of the fan module (20) faces the outer direction of the casing (10); and the blades (22) of the fan module (20) face the inner direction of the casing (10).

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