Rotor of stable heat dissipation motor

By setting up a heat dissipation assembly and a liquid circulation system in the rotor, increasing the heat dissipation area and combining fan blade ventilation, the problem of insufficient heat dissipation of the rotor is solved and the stability and durability of the motor are improved.

CN223309651UActive Publication Date: 2025-09-05ZHEJIANG WEITE ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202422594582.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-09-05
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

The existing rotor heat dissipation area is small, resulting in a decrease in motor efficiency, material aging and failure rate. Overheating may cause degradation of the insulation material between the rotor and the stator, increasing the risk of short circuit.

Method used

The heat dissipation components are arranged in the rotor, including a heat dissipation grille and a micro liquid pump. The liquid circulation is controlled through the temperature control switch, the liquid flow is used to dissipate heat, and the fan blades are ventilated and heat dissipated to increase the heat dissipation area.

Benefits of technology

It effectively solves the problems of motor efficiency and material aging caused by rotor overheating, improves heat dissipation performance, and reduces failure rate and insulation risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor rotor heat dissipation, in particular to a rotor of a stable heat dissipation motor, which comprises a rotor shaft, a rotor iron core is mounted on the outer wall of the rotor shaft, a transmission shaft is mounted on one side of the rotor shaft and positioned at a port of the rotor iron core, a rotor winding is mounted on the outer wall of the rotor iron core, and the rotor winding is wound on the transmission shaft. A heat dissipation assembly is installed on one side of the rotor shaft and located on the inner wall of the rotor iron core, a communicating groove is formed in the inner wall of the rotor iron core, and a bearing part is installed on the outer wall of the transmission shaft; according to the utility model, the heat dissipation assembly absorbs heat of the inner cavity of the rotor iron core through liquid flow, and then the liquid flows to the heat dissipation grid for cooling, so that the heat dissipation of the rotor iron core is more stable; by means of the heat dissipation grating, the heat dissipation area of the rotor can be increased, meanwhile, when the rotor rotates, the transmission shaft in the rotor rotates, then the transmission shaft drives the fan blades to rotate, the fan blades conduct ventilation and heat dissipation on the heat dissipation grating, and practicability is better.
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Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of motor rotors, in particular to a rotor of a stable heat dissipation motor. Background Art

[0002] The generator rotor is the rotating part of the generator, primarily composed of conductive rotor windings, a magnetic core, rotor shaft extensions, retaining rings, center rings, and fans. The conductive rotor windings are the primary component of the generator that generates the electromagnetic field. When current passes through these windings, a magnetic field is generated. This magnetic field induces an AC voltage in the stator coils as the rotor rotates, generating electrical energy.

[0003] When the existing rotor rotates, the heat dissipation area of ​​the rotor itself is relatively small, which limits the heat dissipation performance of the fan blades.

[0004] At the same time, overheating of the motor rotor can lead to a decrease in motor efficiency. Overheating increases friction and resistance within the motor, leading to increased energy loss. Sustained high temperatures accelerate the aging of the rotor material, reducing its mechanical strength and durability, and increasing the failure rate. Overheating can also cause degradation of the insulation between the rotor and stator, increasing the risk of short circuits. Therefore, how to stably dissipate heat from the motor rotor has become a challenge to be solved.

[0005] Therefore, a rotor of a stable heat dissipation motor is needed to improve the above problems. Utility Model Content

[0006] In order to solve the problem that when a stable heat dissipation motor performs stable heat dissipation on the motor, overheating of the motor rotor may cause the motor efficiency to decrease, and continuous high temperature will accelerate the aging of the rotor material and reduce its mechanical strength and durability, the utility model provides a rotor of a stable heat dissipation motor to solve the above problems.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A rotor for a stable heat-dissipating motor comprises a rotor shaft, a rotor core mounted on an outer wall of the rotor shaft, a transmission shaft mounted on one side of the rotor shaft at an end of the rotor core, a rotor winding mounted on the outer wall of the rotor core, a heat dissipation assembly mounted on one side of the rotor shaft at an inner wall of the rotor core, a connecting groove formed on the inner wall of the rotor core, a bearing mounted on the outer wall of the transmission shaft, an electrical ring mounted on one side of the bearing mounted on the outer wall of the transmission shaft, a heat dissipation grille rotatably connected to the outer wall of the transmission shaft, the heat dissipation grille being a hollow structure, and fan blades mounted on one side of the heat dissipation grille at an end of the transmission shaft;

[0009] The heat dissipation assembly includes a heat dissipation baffle, a liquid inlet pipe, and a liquid outlet pipe. The heat dissipation baffle is embedded in the inner wall of the rotor core, and a communication hole is opened on the outer wall of the heat dissipation baffle. The heat dissipation baffle is embedded in the outer wall of the transmission shaft.

[0010] The liquid inlet pipe is embedded in the inner wall of the transmission shaft, wherein one end of the liquid inlet pipe passes through the transmission shaft and extends to the outer wall of the heat dissipation baffle, and the other end of the liquid inlet pipe passes through the transmission shaft and extends to the outer wall of the transmission shaft. A first annular housing is installed thereon, and a first outer shell is rotatably connected to the port of the first annular housing. The outer wall of the first outer shell is connected to the outer wall of the heat dissipation grille through a first conduit;

[0011] The liquid outlet pipe is embedded in the inner wall of the transmission shaft, wherein one end of the liquid outlet pipe passes through the transmission shaft and extends to the outer wall of the heat dissipation partition, and the other end of the liquid outlet pipe passes through the transmission shaft and extends to the outer wall of the transmission shaft on which a second annular shell is installed. The port of the second annular shell is rotatably connected to a second outer shell, and a micro liquid pump is installed on the outer wall of the second outer shell through a second conduit. The liquid outlet of the micro liquid pump is installed with a connecting pipe, and one end of the connecting pipe is installed on the outer wall of the heat dissipation grille, wherein a multifunctional temperature control switch is installed on the outer wall of the micro liquid pump.

[0012] As a preferred solution of the present invention, a sealed gasket is embedded and installed between the transmission shaft and the rotor core and on the outer wall of the transmission shaft, a sealed gasket is embedded and installed between the first annular shell and the first outer shell and on the outer wall of the first annular shell, and a sealed gasket is embedded and installed between the second annular shell and the second outer shell and on the outer wall of the second annular shell.

[0013] As a preferred solution of the present invention, the multifunctional temperature control switch is connected to a micro liquid pump via a wire and the connection is electrical, and the transmission shaft and the rotor shaft are respectively located at opposite ports of the rotor core.

[0014] As a preferred solution of the present invention, the connecting grooves are provided in multiple groups and are respectively located on the opposite inner walls of the rotor core. The heat dissipation partition separates the inner cavity of the rotor core into a heat absorption cavity and a heat dissipation cavity. The liquid outlet pipe is located on one side of the liquid inlet pipe.

[0015] As a preferred solution of the present invention, one end of the liquid outlet pipe passes through the transmission shaft and extends to the inner cavity of the heat absorption cavity, and one end of the liquid inlet pipe passes through the transmission shaft and extends to the inner cavity of the heat dissipation cavity.

[0016] As a preferred solution of the present invention, the bearing member is located on one side of the electrical ring, wherein the first annular housing and the second annular housing are both located between the bearing member and the electrical ring.

[0017] As a preferred solution of the present invention, two groups of communicating holes are provided and are respectively located on the outer wall of the heat dissipation baffle, and the communicating holes are located on one side of the rotor shaft.

[0018] As a preferred solution of the present invention, the first annular housing is located on one side of the second annular housing, the micro liquid pump is mounted on the outer wall of the second housing, and the first housing is mounted on the outer wall of the micro liquid pump.

[0019] Compared with the prior art, the present invention can achieve heat dissipation of the rotor core by arranging a heat dissipation component in the rotor of a stable heat dissipation motor. When the set temperature parameter is reached, its multifunctional temperature control switch controls the operation of the micro liquid pump, thereby causing the micro liquid pump to extract the liquid from the inner cavity of the second shell through the second conduit, and then discharge the liquid into the inner cavity of the hollow structure heat dissipation grille. Its heat dissipation component absorbs heat from the inner cavity of the rotor core through the flow of liquid, and then the liquid flows to the heat dissipation grille for cooling, making the heat dissipation of the rotor core more stable, thereby solving the problem that overheating of the motor rotor may lead to a decrease in motor efficiency, and continuous high temperature will accelerate the aging of the rotor material and reduce its mechanical strength and durability.

[0020] The utility model increases the heat dissipation area of ​​the rotor by arranging a heat dissipation grille in the rotor of the stable heat dissipation motor. At the same time, when the rotor rotates, the transmission shaft in the rotor rotates, thereby causing the transmission shaft to drive the fan blades to rotate, and the fan blades ventilate and dissipate heat to the heat dissipation grille, thereby solving the problem of limiting the heat dissipation performance of the fan blades due to the relatively small heat dissipation area of ​​the rotor itself when the existing rotor rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the rotor core structure analysis of the utility model;

[0023] Figure 3 This is a side structural diagram of the present utility model;

[0024] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of structure A;

[0025] Figure 5 For the utility model Figure 3 Schematic diagram of structure B.

[0026] In the figure: 1. rotor shaft; 2. rotor core; 3. transmission shaft; 4. rotor winding; 5. heat dissipation assembly; 501. heat dissipation baffle; 502. liquid inlet pipe; 503. liquid outlet pipe; 504. connecting hole; 505. first annular shell; 506. first outer shell; 507. first conduit; 508. second annular shell; 509. second outer shell; 510. second conduit; 511. micro liquid pump; 512. connecting pipe; 513. multi-function temperature control switch; 6. connecting groove; 7. bearing part; 8. electrical ring; 9. heat dissipation grille; 10. fan blade. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example: See Figure 1-5 The rotor of a stable heat dissipation motor shown in the figure includes a rotor shaft 1, a rotor core 2 mounted on the outer wall of the rotor shaft 1, a transmission shaft 3 mounted on one side of the rotor shaft 1 and located at the end of the rotor core 2, a rotor winding 4 mounted on the outer wall of the rotor core 2, a heat dissipation assembly 5 mounted on one side of the rotor shaft 1 and located on the inner wall of the rotor core 2, a connecting groove 6 is formed on the inner wall of the rotor core 2, a bearing member 7 is mounted on the outer wall of the transmission shaft 3, an electrical ring 8 is mounted on one side of the bearing member 7 and located on the outer wall of the transmission shaft 3, a heat dissipation grille 9 is rotatably connected to the outer wall of the transmission shaft 3, the heat dissipation grille 9 is a hollow structure, and a fan blade 10 is mounted on one side of the heat dissipation grille 9 and located at the end of the transmission shaft 3;

[0029] In this embodiment, specific reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The heat dissipation assembly 5 includes a heat dissipation baffle 501, a liquid inlet pipe 502, and a liquid outlet pipe 503. The heat dissipation baffle 501 is embedded in the inner wall of the rotor core 2. The outer wall of the heat dissipation baffle 501 is provided with a communication hole 504. There are two groups of communication holes 504, each located on the outer wall of the heat dissipation baffle 501. The communication holes 504 are located on one side of the rotor shaft 1. The heat dissipation baffle 501 is embedded in the outer wall of the transmission shaft 3.

[0030] The liquid inlet pipe 502 is embedded in the inner wall of the transmission shaft 3. One end of the liquid inlet pipe 502 passes through the transmission shaft 3 and extends to the inner cavity of the heat dissipation cavity. One end of the liquid inlet pipe 502 passes through the transmission shaft 3 and extends to the outer wall of the heat dissipation baffle 501. The other end of the liquid inlet pipe 502 passes through the transmission shaft 3 and extends to the outer wall of the transmission shaft 3. A first annular housing 505 is installed. A first outer shell 506 is rotatably connected to the end of the first annular housing 505. The outer wall of the first outer shell 506 is connected to the outer wall of the heat dissipation grille 9 through a first conduit 507.

[0031] The liquid outlet pipe 503 is embedded in the inner wall of the transmission shaft 3, and the liquid outlet pipe 503 is located on one side of the liquid inlet pipe 502. One end of the liquid outlet pipe 503 passes through the transmission shaft 3 and extends to the inner cavity of the heat absorption cavity, wherein one end of the liquid outlet pipe 503 passes through the transmission shaft 3 and extends to the outer wall of the heat dissipation baffle 501, and the other end of the liquid outlet pipe 503 passes through the transmission shaft 3 and extends to the outer wall of the transmission shaft 3. A second annular shell 508 is installed, and a second outer shell 509 is rotatably connected to the port of the second annular shell 508. A micro liquid pump 511 is installed on the outer wall of the second outer shell 509 through a second conduit 510, and a connecting pipe 512 is installed at the liquid outlet of the micro liquid pump 511. One end of the connecting pipe 512 is installed on the outer wall of the heat dissipation grille 9, wherein a multi-function temperature control switch 513 is installed on the outer wall of the micro liquid pump 511.

[0032] Among them, the multifunctional temperature control switch 513 is connected to the micro liquid pump 511 through a wire and the connection method is electrical connection, so that the device is powered on, the transmission shaft 3 and the rotor shaft 1 are respectively located at opposite ports of the rotor core 2, multiple groups of communication grooves 6 are provided and are respectively located on opposite inner walls of the rotor core 2, the heat dissipation baffle 501 separates the inner cavity of the rotor core 2 into a heat absorption cavity and a heat dissipation cavity, the bearing member 7 is located on one side of the electrical ring 8, wherein the first annular shell 505 and the second annular shell 508 are both located between the bearing member 7 and the electrical ring 8, the first annular shell 505 is located on one side of the second annular shell 508, the micro liquid pump 511 is installed on the outer wall of the second housing 509, and the first housing 506 is installed on the outer wall of the micro liquid pump 511;

[0033] Among them, under the action of a sealed gasket embedded between the transmission shaft 3 and the rotor core 2 and on the outer wall of the transmission shaft 3, the sealed gasket seals the gap between the transmission shaft 3 and the rotor core 2; under the action of a sealed gasket embedded between the first annular shell 505 and the first outer shell 506 and on the outer wall of the first annular shell 505, the sealed gasket seals the gap between the first annular shell 505 and the first outer shell 506; under the action of a sealed gasket embedded between the second annular shell 508 and the second outer shell 509 and on the outer wall of the second annular shell 508, the sealed gasket seals the gap between the second annular shell 508 and the second outer shell 509;

[0034] Among them, the liquid outlet pipe 503 and the liquid inlet pipe 502 in the heat dissipation component 5 and the transmission shaft 3 rotate as a whole, the first annular shell 505 rotates at the port of the first shell 506, and the second annular shell 508 rotates at the port of the second shell 509. The first shell 506 and the second shell 509 are fixed on the outer wall of the micro liquid pump 511.

[0035] When the rotor of the stable heat dissipation motor of the present invention is working, it is connected to the heat dissipation grille 9 by rotating on the outer wall of the transmission shaft 3. The heat dissipation grille 9 is a hollow structure, and a fan blade 10 is installed on one side of the heat dissipation grille 9 and at the end of the transmission shaft 3. When the rotor is running, its rotor core 2 generates heat. Since the heat dissipation grille 9 is fixed on the outer wall of the transmission shaft 3 and the transmission shaft 3 is fixed in the inner cavity of the rotor core 2, the heat of the rotor core 2 is conducted to the heat dissipation grille 9 through the transmission shaft 3. The heat dissipation grille 9 greatly increases the heat dissipation area of ​​the motor rotor. At the same time, when the rotor rotates, the transmission shaft 3 in the rotor rotates, and then the transmission shaft 3 drives the fan blades 10 to rotate. The fan blades 10 ventilate and dissipate heat to the heat dissipation grille 9, thereby solving the problem that when the existing rotor rotates, the heat dissipation area of ​​the rotor itself is relatively small, which limits the heat dissipation performance of the fan blades.

[0036] By injecting heat dissipation liquid into the inner cavity of the heat dissipation component 5, a micro liquid pump 511 is installed on the outer wall of the second shell 509 through the second conduit 510. The liquid outlet of the micro liquid pump 511 is installed with a connecting pipe 512, and one end of the connecting pipe 512 is installed on the outer wall of the heat dissipation grille 9. A multifunctional temperature control switch 513 is installed on the outer wall of the micro liquid pump 511. When the multifunctional temperature control switch 513 detects that the temperature reaches the set temperature parameter, the multifunctional temperature control switch 513 turns on the switch, thereby causing the multifunctional temperature control switch 513 to control the operation of the micro liquid pump 511, thereby causing the micro liquid pump 511 to pump the liquid from the inner cavity of the second shell 509 through the second conduit 510, so that the liquid is discharged into the inner cavity of the hollow heat dissipation grille 9;

[0037] The liquid flows through the inner cavity of the heat dissipation component 5, and a connecting hole 504 is opened on the outer wall of the heat dissipation baffle 501. The other end of the liquid inlet pipe 502 passes through the transmission shaft 3 and extends to the outer wall of the transmission shaft 3. A first annular shell 505 is installed. The port of the first annular shell 505 is rotatably connected to the first shell 506. The outer wall of the first shell 506 is connected to the outer wall of the heat dissipation grille 9 through a first conduit 507. When the liquid flows through the connecting groove 6, the liquid absorbs the heat of the rotor core 2. At the same time, the connecting hole 504 is located on one side of the rotor shaft 1. When the low-temperature liquid passes through the liquid inlet pipe 50 2 flows to one side of the heat dissipation baffle 501, so that the liquid fills the connecting groove 6 and contacts the rotor core 2 to absorb heat and heat up. Then the liquid outlet pipe 503 absorbs the high-temperature liquid on the other side of the heat dissipation baffle 501. The two cavities are connected through the connecting hole 504, so that the liquid absorbs heat more fully. Its heat dissipation component 5 absorbs heat from the inner cavity of the rotor core 2 through the liquid flow. Then the liquid flows to the heat dissipation grille 9 for cooling, making the heat dissipation of the rotor core 2 more stable, thereby solving the problem that the motor rotor overheating may cause the motor efficiency to decrease, and the continuous high temperature will accelerate the aging of the rotor material and reduce its mechanical strength and durability.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotor of a stable heat dissipation motor, comprising a rotor shaft (1), characterized in that: A rotor core (2) is mounted on the outer wall of the rotor shaft (1), a transmission shaft (3) is mounted on one side of the rotor shaft (1) and at the end of the rotor core (2), a rotor winding (4) is mounted on the outer wall of the rotor core (2), a heat dissipation assembly (5) is mounted on one side of the rotor shaft (1) and at the inner wall of the rotor core (2), a connecting groove (6) is provided on the inner wall of the rotor core (2), a bearing member (7) is mounted on the outer wall of the transmission shaft (3), an electrical ring (8) is mounted on one side of the bearing member (7) and at the outer wall of the transmission shaft (3), a heat dissipation grille (9) is rotatably connected to the outer wall of the transmission shaft (3), the heat dissipation grille (9) is a hollow structure, and a fan blade (10) is mounted on one side of the heat dissipation grille (9) and at the end of the transmission shaft (3); The heat dissipation assembly (5) comprises a heat dissipation baffle (501), a liquid inlet pipe (502), and a liquid outlet pipe (503); the heat dissipation baffle (501) is embedded in the inner wall of the rotor core (2); a communication hole (504) is provided on the outer wall of the heat dissipation baffle (501); and the heat dissipation baffle (501) is embedded in the outer wall of the transmission shaft (3); The liquid inlet pipe (502) is embedded in the inner wall of the transmission shaft (3), wherein one end of the liquid inlet pipe (502) passes through the transmission shaft (3) and extends to the outer wall of the heat dissipation baffle (501), and the other end of the liquid inlet pipe (502) passes through the transmission shaft (3) and extends to the outer wall of the transmission shaft (3) on which a first annular shell (505) is installed, and a first outer shell (506) is rotatably connected at the port of the first annular shell (505), and the outer wall of the first outer shell (506) is connected to the outer wall of the heat dissipation grille (9) through a first conduit (507); The liquid outlet pipe (503) is embedded in the inner wall of the transmission shaft (3), wherein one end of the liquid outlet pipe (503) passes through the transmission shaft (3) and extends to the outer wall of the heat dissipation partition (501), and the other end of the liquid outlet pipe (503) passes through the transmission shaft (3) and extends to the outer wall of the transmission shaft (3) on which a second annular shell (508) is installed. A second outer shell (509) is rotatably connected at the port of the second annular shell (508). A micro liquid pump (511) is installed on the outer wall of the second outer shell (509) through a second conduit (510). A connecting pipe (512) is installed at the liquid outlet of the micro liquid pump (511), and one end of the connecting pipe (512) is installed on the outer wall of the heat dissipation grille (9). A multifunctional temperature control switch (513) is installed on the outer wall of the micro liquid pump (511).

2. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: A sealed gasket is embedded and installed between the transmission shaft (3) and the rotor core (2) and on the outer wall of the transmission shaft (3); a sealed gasket is embedded and installed between the first annular shell (505) and the first outer shell (506) and on the outer wall of the first annular shell (505); and a sealed gasket is embedded and installed between the second annular shell (508) and the second outer shell (509) and on the outer wall of the second annular shell (508).

3. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: The multifunctional temperature control switch (513) is connected to a micro liquid pump (511) via a wire and the connection is electrical. The transmission shaft (3) and the rotor shaft (1) are respectively located at opposite ends of the rotor core (2).

4. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: The communicating grooves (6) are provided in multiple groups and are respectively located on opposite inner walls of the rotor core (2); the heat dissipation partition (501) separates the inner cavity of the rotor core (2) into a heat absorption cavity and a heat dissipation cavity; and the liquid outlet pipe (503) is located on one side of the liquid inlet pipe (502).

5. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: One end of the liquid outlet pipe (503) passes through the transmission shaft (3) and extends to the inner cavity of the heat absorption cavity, and one end of the liquid inlet pipe (502) passes through the transmission shaft (3) and extends to the inner cavity of the heat dissipation cavity.

6. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: The bearing member (7) is located on one side of the electrical ring (8), wherein the first annular housing (505) and the second annular housing (508) are both located between the bearing member (7) and the electrical ring (8).

7. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: Two groups of communication holes (504) are provided and are respectively located on the outer wall of the heat dissipation baffle (501), and the communication holes (504) are located on one side of the rotor shaft (1).

8. The rotor of a stable heat dissipation motor according to claim 1, characterized in that: The first annular housing (505) is located on one side of the second annular housing (508), the micro liquid pump (511) is mounted on the outer wall of the second housing (509), and the first housing (506) is mounted on the outer wall of the micro liquid pump (511).