Cooling base of low-speed large-torque permanent magnet synchronous motor and cooling method thereof

Abstract

The invention relates to the technical field of permanent magnet synchronous motors, and discloses a cooling base of a low-speed large-torque permanent magnet synchronous motor and a cooling method thereof.The cooling base comprises a machine body shell and a supporting seat, the supporting seat is installed at the bottom of the machine body shell, and a heat dissipation plate is fixedly connected to the bottom of the supporting seat. Through cooperative use of the cooling assembly and the auxiliary heat dissipation assembly, high-temperature gas enters the inner cavity of the cooling box through the connecting pipe, liquid in the liquid cooling pipe circulates ceaselessly to primarily cool the high-temperature gas, the high-temperature gas is further cooled by the heat dissipation fan, and then the high-temperature gas is exhausted from the exhaust hole; a part of cooled gas enters the air pipe and is blown to the surface of the machine body shell, and the problems that an existing permanent magnet synchronous motor base is single in function, a permanent magnet synchronous motor does not have the auxiliary cooling and heat dissipation capacity, and the permanent magnet synchronous motor can generate high temperature to affect the performance after being used for a long time are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of permanent magnet synchronous motors, and in particular relates to a cooling base of a low-speed, high-torque permanent magnet synchronous motor and a cooling method thereof. Background Art

[0002] Permanent magnet synchronous motor is a synchronous motor that uses permanent magnets to generate magnetic fields. Its working principle is based on electromagnetic induction and magnetic field interaction. When three-phase alternating current is passed through the stator winding to generate a rotating magnetic field, the rotating magnetic field interacts with the magnetic field generated by the permanent magnets on the rotor, causing the rotor to rotate, and the speed of the rotor is consistent with the current frequency of the stator winding. It has the advantages of simple structure, small size, light weight, high efficiency, high power density, low noise, and easy maintenance. It is widely used in industry, transportation, home appliances and other fields.

[0003] The low-speed, high-torque permanent magnet synchronous motor is a type of permanent magnet synchronous motor. The permanent magnet synchronous motor needs a base to fix and maintain stability during use. The problems with the above technology are: the existing permanent magnet synchronous motor base has a relatively single function, and the permanent magnet synchronous motor itself does not have the ability to assist in cooling and dissipate heat. After long-term use, the permanent magnet synchronous motor will generate high temperature and affect its performance. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a cooling base and a cooling method for a low-speed, high-torque permanent magnet synchronous motor, which can overcome the above problems or at least partially solve the above problems.

[0005] The present invention is implemented as follows: a cooling base of a low-speed, high-torque permanent magnet synchronous motor and a cooling method thereof, comprising a body shell and a support base, the support base is installed at the bottom of the body shell, a heat sink is fixedly connected to the bottom of the support base, a heat sink surface is provided with heat dissipation holes, a cooling box is provided at the bottom of the heat sink, a base is installed at the bottom of the cooling box, an exhaust hole is provided on the surface of the cooling box, a cooling component is provided in the inner cavity of the cooling box, an auxiliary heat dissipation component is provided on the top of the heat sink, and lifting components are provided on both sides of the heat sink;

[0006] The cooling component is used to cool the transported hot air;

[0007] The auxiliary heat dissipation component is used to dissipate the heat on the heat dissipation plate;

[0008] The lifting assembly is used to adjust the height of the heat sink.

[0009] In order to cool the hot air, preferably, the cooling assembly includes a connecting pipe, a liquid cooling pipe is arranged at the bottom of the connecting pipe, controllers are installed at both ends of the liquid cooling pipe, and a heat dissipation fan is arranged at the bottom of the liquid cooling pipe.

[0010] In order to dissipate the heat on the heat dissipation plate, preferably, the auxiliary heat dissipation component includes an air duct, a cooling block is arranged between two of the air ducts, and cooling holes are opened on the surface of the cooling block.

[0011] In order to adjust the height of the heat sink, preferably, the lifting assembly includes a connecting plate, the top of which is fixedly connected to a lifting motor, a threaded rod is installed at the output end of the top of the lifting motor, and a threaded block is sleeved on the surface of the threaded rod.

[0012] In order to facilitate the exhaust of the cooling box, preferably, the exhaust holes are multiple in number and evenly distributed on the surface of the cooling box.

[0013] In order to cool the hot air, preferably, both sides of the connecting pipe are fixedly connected to the heat dissipation holes and the cooling box respectively, the hydraulic pipe is installed in the inner cavity of the cooling box, and the top of the heat dissipation fan is fixedly connected to the cooling box.

[0014] In order to dissipate the heat on the heat sink, preferably, the bottom of the air duct is fixedly connected to the cooling box, and the bottom of the cooling block is fixedly connected to the heat sink.

[0015] In order to adjust the height of the heat sink, preferably, the top of the connecting plate is fixedly connected to the base, the surface of the threaded rod is provided with an external thread, the inner cavity of the threaded block is provided with an internal thread, and one side of the threaded block is fixedly connected to the heat sink.

[0016] include,

[0017] S1. Start the lifting motor, which drives the threaded rod to rotate. The threaded rod controls the lifting of the threaded block through the cooperation of the internal thread and the external thread. The threaded block drives the heat sink to move, and the heat sink is connected to the connecting pipe.

[0018] S2. In normal use of the permanent magnet synchronous motor, the permanent magnet synchronous motor generates high temperature. The high temperature gas enters the inner cavity of the cooling box through the connecting pipe. The liquid in the liquid cooling pipe circulates continuously to initially cool the high temperature gas. The cooling fan further cools the high temperature gas. The high temperature gas is then discharged from the exhaust hole. A part of the cooled gas enters the air duct and is blown to the surface of the machine body shell.

[0019] S3. The naturally dissipated heat on the heat sink is blown by the wind in the air duct, the cooling block absorbs the heat, and assists in heat dissipation through the wind passing through the cooling holes, because the air will be compressed after passing through the cooling holes, and the compressed air will reduce the heat.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention sets a cooling component and an auxiliary heat dissipation component for coordinated use. The high-temperature gas enters the inner cavity of the cooling box through the connecting pipe. The liquid in the liquid cooling pipe circulates continuously to initially cool the high-temperature gas. The heat dissipation fan further cools the high-temperature gas. The high-temperature gas is then discharged from the exhaust hole. A part of the cooled gas enters the air duct and is blown toward the surface of the machine body shell. This solves the problem that the existing permanent magnet synchronous motor base has a relatively single function and the permanent magnet synchronous motor itself does not have the auxiliary cooling and heat dissipation capabilities. After long-term use, the permanent magnet synchronous motor will generate high temperature and affect the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of a body shell and a support base provided by an embodiment of the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of an embodiment of the present invention after removing the body shell and the support base;

[0025] Figure 4 It is a three-dimensional schematic diagram of a local structure provided by an embodiment of the present invention;

[0026] Figure 5 is a three-dimensional schematic diagram of a horizontal section provided by an embodiment of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of a lifting assembly provided by an embodiment of the present invention.

[0028] In the figure: 1. body shell; 2. support base; 3. heat sink; 4. heat dissipation hole; 5. cooling box; 6. base; 7. exhaust hole; 8. cooling component; 801. connecting pipe; 802. liquid cooling pipe; 803. controller; 804. cooling fan; 9. auxiliary heat dissipation component; 901. air duct; 902. cooling block; 903. cooling hole; 10. lifting component; 1001. connecting plate; 1002. lifting motor; 1003. threaded rod; 1004. threaded block. DETAILED DESCRIPTION

[0029] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0030] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0031] like Figures 1 to 6As shown, a cooling base of a low-speed, high-torque permanent magnet synchronous motor and a cooling method thereof provided in an embodiment of the present invention include a body shell 1 and a support base 2, the support base 2 is installed at the bottom of the body shell 1, a heat sink 3 is fixedly connected to the bottom of the support base 2, a heat sink 3 is provided on the surface of the heat sink 3 with heat dissipation holes 4, a cooling box 5 is provided at the bottom of the heat sink 3, a base 6 is installed at the bottom of the cooling box 5, an exhaust hole 7 is provided on the surface of the cooling box 5, a cooling component 8 is provided in the inner cavity of the cooling box 5, an auxiliary heat dissipation component 9 is provided on the top of the heat sink 3, and lifting components 10 are provided on both sides of the heat sink 3;

[0032] The cooling assembly 8 is used to cool the transported hot air;

[0033] The auxiliary heat dissipation component 9 is used to dissipate the heat on the heat dissipation plate 3;

[0034] The lifting assembly 10 is used to adjust the height of the heat sink 3 .

[0035] In order to cool the hot air, the cooling assembly 8 includes a connecting pipe 801 , a liquid cooling pipe 802 is arranged at the bottom of the connecting pipe 801 , controllers 803 are installed at both ends of the liquid cooling pipe 802 , and a heat dissipation fan 804 is arranged at the bottom of the liquid cooling pipe 802 .

[0036] In order to dissipate the heat on the heat dissipation plate 3 , the auxiliary heat dissipation component 9 includes an air duct 901 , a cooling block 902 is disposed between two air ducts 901 , and cooling holes 903 are opened on the surface of the cooling block 902 .

[0037] In order to adjust the height of the heat sink 3, the lifting assembly 10 includes a connecting plate 1001, the top of which is fixedly connected to a lifting motor 1002, a threaded rod 1003 is installed at the output end of the top of the lifting motor 1002, and a threaded block 1004 is sleeved on the surface of the threaded rod 1003.

[0038] In order to facilitate the exhaust of the cooling box 5 , there are a plurality of exhaust holes 7 which are evenly distributed on the surface of the cooling box 5 .

[0039] In order to cool the hot air, both sides of the connecting pipe 801 are fixedly connected to the heat dissipation holes 4 and the cooling box 5 respectively, the hydraulic pipe is installed in the inner cavity of the cooling box 5, and the top of the heat dissipation fan 804 is fixedly connected to the cooling box 5.

[0040] In order to dissipate the heat on the heat sink 3 , the bottom of the air duct 901 is fixedly connected to the cooling box 5 , and the bottom of the cooling block 902 is fixedly connected to the heat sink 3 .

[0041] In order to adjust the height of the heat sink 3 , the top of the connecting plate 1001 is fixedly connected to the base 6 , the surface of the threaded rod 1003 is provided with an external thread, the inner cavity of the threaded block 1004 is provided with an internal thread, and one side of the threaded block 1004 is fixedly connected to the heat sink 3 .

[0042] include,

[0043] S1. Start the lifting motor 1002, which drives the threaded rod 1003 to rotate. The threaded rod 1003 controls the lifting and lowering of the threaded block 1004 through the cooperation of the internal thread and the external thread. The threaded block 1004 drives the heat sink 3 to move, and the heat sink 3 is connected to the connecting pipe 801.

[0044] S2. The permanent magnet synchronous motor is used normally. The permanent magnet synchronous motor generates high temperature. The high temperature gas enters the inner cavity of the cooling box 5 through the connecting pipe 801. The liquid in the liquid cooling pipe 802 circulates continuously to initially cool the high temperature gas. The heat dissipation fan 804 further cools the high temperature gas. Then the high temperature gas is discharged from the exhaust hole 7. A part of the cooled gas enters the air duct 901 and is blown to the surface of the housing 1.

[0045] S3. The naturally dissipated heat received by the heat sink 3 is blown by the wind in the air duct 901, and the cooling block 902 absorbs the heat and assists in heat dissipation through the wind passing through the cooling hole 903. Because the air will be compressed after passing through the cooling hole 903, the compressed air will reduce the heat.

[0046] Working principle of the present invention:

[0047] When in use, the lifting motor 1002 is started, and the lifting motor 1002 drives the threaded rod 1003 to rotate. The threaded rod 1003 controls the lifting of the threaded block 1004 through the cooperation of the internal thread and the external thread. The threaded block 1004 drives the heat sink 3 to move, and the heat sink 3 is docked with the connecting pipe 801; the permanent magnet synchronous motor is used normally, and the permanent magnet synchronous motor generates high temperature. The high-temperature gas enters the inner cavity of the cooling box 5 through the connecting pipe 801. The liquid in the liquid cooling pipe 802 circulates continuously to initially cool the high-temperature gas. The heat dissipation fan 804 further cools the high-temperature gas, and then the high-temperature gas is discharged from the exhaust hole 7. A part of the cooled gas enters the air duct 901 and is blown to the surface of the body shell 1; the naturally dissipated heat on the heat sink 3 is blown by the wind in the air duct 901, and the cooling block 902 absorbs the heat and assists in heat dissipation through the wind passing through the cooling hole 903, because the air will be compressed after passing through the cooling hole 903, and the compressed air will reduce the heat.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent will not depart from the scope of the technical solution of the present invention.

Claims

1. A cooling base for a low-speed, high-torque permanent magnet synchronous motor, comprising a housing (1) and a support base (2), wherein the support base (2) is mounted on the bottom of the housing (1), and is characterized in that: The bottom of the support seat (2) is fixedly connected with a heat sink (3), the surface of the heat sink (3) is provided with heat dissipation holes (4), the bottom of the heat sink (3) is provided with a cooling box (5), the bottom of the cooling box (5) is installed with a base (6), the surface of the cooling box (5) is provided with exhaust holes (7), the inner cavity of the cooling box (5) is provided with a cooling component (8), the top of the heat sink (3) is provided with an auxiliary heat dissipation component (9), and both sides of the heat sink (3) are provided with lifting components (10); The cooling component (8) is used to cool the transported hot air; The auxiliary heat dissipation component (9) is used to dissipate heat on the heat dissipation plate (3); The lifting assembly (10) is used to adjust the height of the heat dissipation plate (3).

2. The cooling base of a low-speed, high-torque permanent magnet synchronous motor according to claim 1, characterized in that: The cooling assembly (8) comprises a connecting pipe (801), a liquid cooling pipe (802) is arranged at the bottom of the connecting pipe (801), controllers (803) are installed at both ends of the liquid cooling pipe (802), and a heat dissipation fan (804) is arranged at the bottom of the liquid cooling pipe (802).

3. The cooling base of a low-speed, high-torque permanent magnet synchronous motor according to claim 1, characterized in that: The auxiliary heat dissipation component (9) comprises an air duct (901), a cooling block (902) is arranged between two of the air ducts (901), and a cooling hole (903) is provided on the surface of the cooling block (902).

4. The cooling base of a low-speed, high-torque permanent magnet synchronous motor according to claim 1, characterized in that: The lifting assembly (10) comprises a connecting plate (1001), the top of which is fixedly connected to a lifting motor (1002), a threaded rod (1003) being installed at the output end of the top of the lifting motor (1002), and a threaded block (1004) being sleeved on the surface of the threaded rod (1003).

5. The cooling base of the low-speed, high-torque permanent magnet synchronous motor according to claim 1, characterized in that: The number of the exhaust holes (7) is several and they are evenly distributed on the surface of the cooling box (5).

6. The cooling base of the low-speed, high-torque permanent magnet synchronous motor according to claim 2, characterized in that: The two sides of the connecting pipe (801) are fixedly connected to the heat dissipation hole (4) and the cooling box (5), respectively; the hydraulic pipe is installed in the inner cavity of the cooling box (5); and the top of the heat dissipation fan (804) is fixedly connected to the cooling box (5).

7. The cooling base of the low-speed, high-torque permanent magnet synchronous motor according to claim 3, characterized in that: The bottom of the air duct (901) is fixedly connected to the cooling box (5), and the bottom of the cooling block (902) is fixedly connected to the heat sink (3).

8. The cooling base of the low-speed, high-torque permanent magnet synchronous motor according to claim 4, characterized in that: The top of the connecting plate (1001) is fixedly connected to the base (6), the surface of the threaded rod (1003) is provided with an external thread, the inner cavity of the threaded block (1004) is provided with an internal thread, and one side of the threaded block (1004) is fixedly connected to the heat dissipation plate (3).

9. A method for cooling a cooling base of a low-speed, high-torque permanent magnet synchronous motor, the cooling base of a low-speed, high-torque permanent magnet synchronous motor according to any one of claims 1 to 8, characterized in that: include, S1, starting the lifting motor (1002), the lifting motor (1002) drives the threaded rod (1003) to rotate, the threaded rod (1003) controls the lifting and lowering of the threaded block (1004) through the cooperation of the internal thread and the external thread, the threaded block (1004) drives the heat sink (3) to move, and the heat sink (3) is connected to the connecting pipe (801); S2. The permanent magnet synchronous motor is used normally. The permanent magnet synchronous motor generates high temperature. The high temperature gas enters the inner cavity of the cooling box (5) through the connecting pipe (801). The liquid in the liquid cooling pipe (802) circulates continuously to initially cool the high temperature gas. The heat dissipation fan (804) further cools the high temperature gas. The high temperature gas is then discharged from the exhaust hole (7). A part of the cooled gas enters the air duct (901) and is blown toward the surface of the machine body shell (1). S3. The naturally dissipated heat received by the heat sink (3) is blown by the wind in the air duct (901), and the cooling block (902) absorbs the heat and assists in heat dissipation through the wind passing through the cooling hole (903). Because the air will be compressed after passing through the cooling hole (903), the compressed air will reduce the heat.

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