CN202424409U - A New Type of Rotor Heat Dissipation Structure - Google Patents

Abstract

The utility model discloses a novel rotor heat radiation structure, including pivot (1), rotor (2) and bearing (3), install in pivot (1) rotor (2), pivot (1) supporting is on bearing (3), still include a plurality of fin (5), fin (5) are arranged in between rotor (2) and bearing (3) and are nested on pivot (1), be equipped with space (6) between two adjacent fin (5), its simple structure reduces motor shaft temperature, and then reduce motor bearing temperature, the radiating effect is good, extension motor life guarantees that the motor normally works.

Description

A New Type of Rotor Heat Dissipation Structure

Technical field:

The utility model relates to a novel rotor cooling structure.

Background technique:

The traditional motor rotor assembly only includes the rotating shaft, the rotor core installed on the rotating shaft, and the rotating shaft is supported at both ends of the bearing. Since the rotor core generates a lot of heat, part of the heat is transferred to the bearing through the rotating shaft, which increases the temperature of the bearing. This will lead to a decrease in the life of the bearing and shorten the life of the motor, especially when the motor has a compact structure and poor ventilation and heat dissipation, this effect is more serious.

Invention content:

The purpose of this utility model is to provide a new type of rotor heat dissipation structure, which has a simple structure, reduces the temperature of the motor shaft, and further reduces the temperature of the motor bearing, has a good heat dissipation effect, prolongs the service life of the motor, and ensures the normal operation of the motor.

The purpose of this utility model is achieved through the following technical solutions.

A new type of rotor heat dissipation structure, including a shaft, a rotor and a bearing, the rotor is installed on the shaft, the shaft is supported on the bearing, and it also includes a number of cooling fins, the cooling fins are placed between the rotor and the bearing and nested on the shaft. There is a gap between two adjacent cooling fins.

The above-mentioned heat sink includes a body, and a mounting hole is provided in the middle of the body, and an annular boss protrudes upward from the edge of the mounting hole and the body.

The body end surface of the heat sink mentioned above is plane.

The body of the above-mentioned heat sink protrudes upwards with several bumps.

The body of the above-mentioned heat sink protrudes upwards with several ribs.

The heat sink mentioned above is made of metal material with good thermal conductivity.

The heat sinks mentioned above are formed by stamping.

Compared with the prior art, the utility model has the following effects: 1) the utility model adds a number of cooling fins, the cooling fins are placed between the rotor and the bearing and nested on the rotating shaft, and the adjacent two cooling fins are arranged There is a gap, which can effectively reduce the temperature of the rotating shaft, thereby reducing the temperature of the motor bearing, which solves the hidden danger of the temperature rise of the bearing caused by the heating of the rotor iron core and the heat transmitted to the bearing through the rotating shaft. The heat dissipation effect is good, and the service life of the motor is guaranteed. The motor works normally; 2) The body of the heat sink protrudes several bumps upwards, and the body of the heat sink protrudes several ribs upwards to increase the heat dissipation area and the heat dissipation effect is better; 3) The heat sink is made of metal material with good thermal conductivity The thickness of the material is less than 2mm, light weight, large heat dissipation area, low cost, and good effect; 4) The heat sink is formed by stamping, low cost, and suitable for mass production.

Description of drawings:

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a structural schematic diagram of the utility model.

Fig. 3 is a three-dimensional view of a heat sink according to Embodiment 1 of the present utility model.

Fig. 4 is a perspective view of the heat sink of the second embodiment of the utility model.

Fig. 5 is a three-dimensional view of the heat sink of the third embodiment of the utility model.

Detailed ways:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment 1, as shown in Figure 1, Figure 2 and Figure 3, the utility model is a new type of rotor heat dissipation structure, including a rotating shaft 1, a rotor 2 and a bearing 3, the rotor 2 is installed on the rotating shaft 1, and the rotating shaft 1 is supported on The bearing 3 also includes a number of cooling fins 5, the cooling fins 5 are placed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is provided between two adjacent cooling fins 5; the cooling fins 5 includes a body 51, a mounting hole 52 is provided in the middle of the body 51, and an annular boss 53 protrudes upward on the edge of the mounting hole 52 and the body 51; the end face of the body 51 of the heat sink 5 is flat; the heat sink 5 is a heat sink. It is made of a metal material with good conductivity, such as aluminum foil; the heat sink 5 is formed by stamping.

Embodiment 2, as shown in Figure 1, Figure 2 and Figure 4, the utility model is a new type of rotor heat dissipation structure, including a rotating shaft 1, a rotor 2 and a bearing 3, the rotor 2 is installed on the rotating shaft 1, and the rotating shaft 1 is supported on The bearing 3 also includes a number of cooling fins 5, the cooling fins 5 are placed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is provided between two adjacent cooling fins 5; the cooling fins 5 includes a body 51, a mounting hole 52 is provided in the middle of the body 51, and an annular boss 53 protrudes upward on the edge of the mounting hole 52 and the body 51; the body 51 of the heat sink 5 protrudes upwards with several bumps 54; the heat sink 5 5 is made of a metal material with good thermal conductivity, such as aluminum foil; the heat sink 5 is formed by stamping.

Embodiment 3, as shown in Figure 1, Figure 2 and Figure 5, the utility model is a new type of rotor heat dissipation structure, including a rotating shaft 1, a rotor 2 and a bearing 3, the rotor 2 is installed on the rotating shaft 1, and the rotating shaft 1 is supported on The bearing 3 also includes a number of cooling fins 5, the cooling fins 5 are placed between the rotor 2 and the bearing 3 and nested on the rotating shaft 1, and a gap 6 is provided between two adjacent cooling fins 5; the cooling fins 5 includes a body 51, a mounting hole 52 is provided in the middle of the body 51, and an annular boss 53 protrudes upward on the edge of the mounting hole 52 and the body 51; the body 51 of the heat sink 5 protrudes upwards with several ribs 55; the heat sink 5 5 is made of a metal material with good thermal conductivity, such as aluminum foil; the heat sink 5 is formed by stamping.

The utility model rotating shaft 1, rotor 2 and bearing 3, the rotor 2 is installed on the rotating shaft 1, the rotating shaft 1 is supported on the bearing 3, also includes a plurality of cooling fins 5, the cooling fins 5 are placed between the rotor 2 and the bearing 3 and nested On the rotating shaft 1, there is a gap 6 between two adjacent cooling fins 5. The structure is simple, which can reduce the temperature of the motor shaft, thereby lowering the temperature of the motor bearing. The heat dissipation effect is good, the service life of the motor is extended, and the normal operation of the motor is ensured.

Claims (7)

1. A new type of rotor heat dissipation structure, including a rotating shaft (1), a rotor (2) and a bearing (3), the rotor (2) is installed on the rotating shaft (1), and the rotating shaft (1) is supported on the bearing (3), It is characterized in that it also includes several cooling fins (5), the cooling fins (5) are placed between the rotor (2) and the bearing (3) and nested on the rotating shaft (1), two adjacent cooling fins (5) Spaces (6) are provided between them. 2. A new type of rotor heat dissipation structure according to claim 1, characterized in that: the heat dissipation fin (5) includes a body (51), and a mounting hole (52) is provided in the middle of the body (51). The edge of the hole (52) and the body (51) protrude upwards from the annular boss (53). 3. A novel rotor cooling structure according to claim 2, characterized in that: the end surface of the body (51) of the cooling fin (5) is plane. 4. A novel rotor heat dissipation structure according to claim 2, characterized in that: the body (51) of the heat dissipation fin (5) protrudes upwards with several bumps (54). 5. A novel rotor cooling structure according to claim 2, characterized in that: the body (51) of the cooling fin (5) protrudes upwards with several ribs (55). 6. A novel rotor cooling structure according to claim 1 or 2, characterized in that: said cooling fins (5) are made of metal materials with good thermal conductivity. 7. A novel rotor cooling structure according to claim 6, characterized in that the cooling fins (5) are formed by stamping.

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