Motor heat dissipation mechanism and motor

Abstract

The utility model provides a motor heat dissipation mechanism and a motor, the motor heat dissipation mechanism comprises a casing, a coil pipe and an impeller, a stator is fixedly arranged in the casing, a rotor is rotatably arranged in the stator, and a front end cover and a rear end cover are fixedly arranged at two ends of the casing, two ends of the rotor respectively penetrate through the front end cover and the rear end cover, and the coil pipe is coiled on the inner wall of the casing. The impeller is fixedly arranged at the end, extending out of the rear end cover, of the rotor, and the impeller is sleeved with a bin which is fixedly connected with the machine shell. According to the motor heat dissipation mechanism and the motor of the utility model, through the arrangement of the coil pipe, it is ensured that the whole casing can be subjected to heat dissipation, through the arrangement of the impeller, it is ensured that the cooling liquid in the coil pipe can be circulated, the heat dissipation efficiency is improved, and through the arrangement of the round sleeve, it is ensured that the stator can be fixed on the casing, and the stability of the motor is improved. And through matched arrangement of the arc-shaped pipe and the straight pipe, the coil pipe can be conveniently disassembled, and therefore maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a motor heat dissipation mechanism. The utility model also relates to a motor provided with the motor heat dissipation mechanism. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main function is to generate driving torque. As a power source for electrical appliances or various machines, the iron core of a running motor will produce iron loss in an alternating magnetic field, and copper loss will be generated when the winding is energized. There are also other stray losses, all of which will increase the temperature of the motor.

[0003] The heat dissipation method currently used by existing motors is to install fan blades at the rear end of the motor, and the fan blades are keyed to the rear end of the motor rotor. The rotor drives the fan blades to rotate to generate airflow for cooling. Since only the fan blades are installed at the rear end of the motor, only the rear end of the motor can have a heat dissipation effect, and the heat source of the motor is located at the stator and rotor. Therefore, the heat dissipation effect of the existing motor is poor. Utility Model Content

[0004] One of the purposes of the utility model is to provide a motor heat dissipation mechanism to solve the problem of poor heat dissipation effect of the existing motor.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A motor heat dissipation mechanism, comprising:

[0007] A casing, in which a stator is fixedly arranged, a rotor rotatably arranged in the stator, and a front cover and a rear cover fixedly arranged at both ends of the casing, and both ends of the rotor respectively penetrate the front cover and the rear cover; a coil, coiled on the inner wall of the casing; an impeller, fixedly arranged at one end of the rotor extending out of the rear cover, and a chamber body is arranged outside the impeller, and the chamber body is fixedly connected to the casing.

[0008] Furthermore, a circular sleeve is fixedly arranged in the casing, the coil is coiled between the circular sleeve and the casing, and the stator is fixedly arranged on the inner wall of the circular sleeve.

[0009] Furthermore, a wind hood is fixedly provided at the rear end cover of the casing, and a fan blade is fixedly provided at one end of the rotor extending out of the rear end cover, and the fan blade and the impeller are arranged in an array on the rotor.

[0010] Furthermore, a support rod is fixedly provided on the outer side wall of the warehouse body, a mounting plate is fixedly provided on the support rod, and the mounting plate is fixedly connected to the wind hood.

[0011] Further, the coil includes an arc-shaped tube and a straight tube connected to the arc-shaped tube, the arc-shaped tube and the straight tube are connected to each other in multiple groups, and both ends of the coil are connected to each other with external tubes;

[0012] The warehouse body is provided with an inlet and an outlet, and the two external pipes are connected and arranged at the inlet and the outlet respectively.

[0013] Furthermore, a dynamic seal is provided between the bin body and the rotor, an end of the bin body away from the motor is an opening, and the opening of the bin body is closed by a sealing cover.

[0014] Furthermore, the rear end cover is provided with a through hole, and the external pipe passes through the through hole.

[0015] Furthermore, the circular sleeve is provided with a through slot for the line to pass through.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The motor heat dissipation mechanism and the motor described in the utility model ensure that the entire casing can dissipate heat through the arrangement of the coil, ensure that the coolant in the coil can circulate through the arrangement of the impeller to improve the heat dissipation efficiency, ensure that the stator can be fixed on the casing through the arrangement of the round sleeve to improve the stability of the motor, and facilitate the disassembly of the coil through the coordinated arrangement of the arc tube and the straight tube, thereby facilitating maintenance, and facilitate the maintenance of the bin body through the coordinated arrangement of the bin body and the cover to avoid blockage of the oil circuit.

[0018] A second objective of the present invention is to provide a motor, wherein the motor heat dissipation mechanism as described above is provided inside the motor.

[0019] The motor of the present invention has the same beneficial effects as the above-mentioned motor heat dissipation mechanism and motor compared with the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is an exploded schematic diagram of the motor heat dissipation mechanism according to the first embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the motor heat dissipation mechanism according to the first embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the coil part according to the first embodiment of the utility model;

[0024] Figure 4 This is a partial schematic diagram of the fan blades and impeller according to the first embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the decomposition of the warehouse body according to the first embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the motor described in Example 2 of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Casing; 2. Stator; 3. Rotor; 4. Front cover; 5. Rear cover;

[0029] 6. Coil; 601. Curved tube; 602. Straight tube; 603. External tube;

[0030] 7. Impeller;

[0031] 8. Bin body; 801. inlet; 802. outlet; 803. opening; 804. cover;

[0032] 9. Wind cover; 10. Fan blades; 11. Support rod; 12. Mounting plate; 13. Through hole; 14. Through groove; 15. Round sleeve. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. Embodiment 1

[0037] This embodiment relates to a motor heat dissipation mechanism, the overall structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a casing 1, a coil 6, and an impeller 7.

[0038] Among them, a stator 2 is fixedly arranged in the casing 1, a rotor 3 is rotatably arranged in the stator 2, and a front cover 4 and a rear cover 5 are fixedly arranged at both ends of the casing 1. The two ends of the rotor 3 pass through the front cover 4 and the rear cover 5 respectively. The coil 6 is coiled on the inner wall of the casing 1, and the impeller 7 is fixedly arranged at one end of the rotor 3 extending out of the rear cover 5. The impeller 7 is outer-mounted with a bin body 8, and the bin body 8 is fixedly connected to the casing 1.

[0039] It is worth mentioning that the coil 6 is coiled along the inner wall of the casing 1, and the coiling method is serpentine coiling along the outer wall of the casing 1. Such a configuration ensures that the ports at both ends of the coil 6 can be located at the tail end of the motor, which is convenient for connection with the bin body 8. The stator 2 is fixedly installed on the casing 1. Such a configuration can ensure that the coil 6 dissipates heat to the inside of the casing 1, and the coolant flows in the coil 6, thereby achieving heat dissipation, and the rotation of the coolant is driven by the impeller 7. The impeller 7 can be keyed to the end of the rotor 3. When the rotor 3 rotates, it drives the impeller 7 to rotate in the bin body 8, thereby driving the coolant to flow. The front cover 4 and the rear cover 5 are common cover plates for enclosing motors in the prior art, which will not be repeated here. The rotor 3 is dynamically sealed after passing through the front cover 4 and the rear cover 5. The dynamic seal is a common sealing method in the prior art, which will not be repeated here. The rotor 3 extends from the front cover 4, and this section is the driving end of the motor. The rotor 3 extends from the rear cover 5 and is connected to the impeller 7, which can drive the impeller 7 to rotate.

[0040] Based on the above overall introduction, an exemplary structure of the motor heat dissipation mechanism of this embodiment is still as follows Figure 1 and Figure 2 As shown, a circular sleeve 15 is fixedly arranged in the casing 1, the coil 6 is coiled between the circular sleeve 15 and the casing 1, and the stator 2 is fixedly arranged on the inner wall of the circular sleeve 15. A wind shield 9 is fixedly arranged at the rear end cover 5 of the casing 1, and a fan blade 10 is fixedly arranged at one end of the rotor 3 extending out of the rear end cover 5, and the fan blade 10 and the impeller 7 are arranged in an array on the rotor 3.

[0041] Specifically, the two ends of the circular sleeve 15 are fixedly connected to the casing 1 and can be tightened by screws. The coil 6 is coiled between the circular sleeve 15 and the casing 1, and the stator 2 can be fixed in the circular sleeve 15. This arrangement is convenient for the installation of the stator 2 and can also achieve heat dissipation of the stator 2. The wind hood 9 is sleeved on the casing 1 to wrap the rear end cover 5. The fan blades 10 are also keyed to the rotor 3. The wind hood 9 can fix the bin body 8 and cover the fan blades 10 to avoid being entangled during rotation. The fan blades 10 can be located between the bin body 8 and the rear end cover 5, thereby cooling the tail end of the motor.

[0042] As a preferred example, Figure 1 and Figure 5 As shown, in this embodiment, a support rod 11 is fixedly provided on the outer wall of the bin body 8, a mounting plate 12 is fixedly provided on the support rod 11, and the mounting plate 12 is fixedly connected to the wind shield 9. Specifically, the support rod 11 can be welded to the side wall of the bin body 8, the mounting plate 12 is welded to the support rod 11, the mounting plate 12 is arc-shaped, and has the same arc as the inner wall of the wind shield 9, and the wind shield 9 and the mounting plate 12 are fixed by screws, so that the bin body 8 is fixed to the wind shield 9.

[0043] As a preferred embodiment, Figure 3 and Figure 5 As shown, the coil 6 of this embodiment includes an arc tube 601 and a straight tube 602 connected and arranged on the arc tube 601. There are multiple groups of arc tubes 601 and straight tubes 602 connected and arranged. External tubes 603 are connected and arranged at both ends of the coil 6. An inlet 801 and an outlet 802 are arranged on the warehouse body 8. Two external tubes 603 are connected and arranged at the inlet 801 and the outlet 802 respectively.

[0044] It should be noted that the curvature of the arc tube 601 is the same as that of the round sleeve 15. Such a setting can ensure that the arc tube 601 and the round sleeve 15 fit closely. In the present embodiment, the coil 6 is set to be circular. In order to expand the contact area between the coil 6 and the round sleeve 15, the coil 6 can also be set to be square. The straight tube 602 and the arc tube 601 can be connected by threads or by interference fit. After the coiling is completed, the two ports of the coil 6 are located at the tail end of the motor, and then connected to the warehouse body 8 through the external pipe 603. The rotation of the impeller 7 causes the coolant in the warehouse body 8 to flow, that is, from the outlet 802 to the coil 6, and then from the coil 6 through the inlet 801 into the warehouse body 8 to complete the cycle. In order to improve the heat dissipation efficiency, a heat sink can also be set on the warehouse body 8.

[0045] As a preferred example, Figure 5As shown, a rotating seal is provided between the bin body 8 and the rotor 3, and the end of the bin body 8 away from the motor is an opening 803, and the opening 803 of the bin body 8 is closed by a cover 804. It should be noted that the dynamic seal is the same as the above-mentioned dynamic seal, which is a common sealing method in the prior art and will not be described again. The rotor 3 extends into the bin body 8 to drive the impeller 7 to rotate, thereby realizing the circulation of the coolant. The purpose of setting the opening 803 in the bin body 8 is to facilitate maintenance, such as observing the internal situation of the bin body 8 with the seal, and the cover 804 and the bin body 8 can be fastened by screws, and they are sealed by a sealing ring.

[0046] As a preferred example, Figure 2 and Figure 4 As shown, the rear end cover 5 is provided with a through hole 13, and the external pipe 603 passes through the through hole 13. A through slot 14 for the line to pass through is provided on the round sleeve 15. Specifically, the through hole 13 and the external pipe 603 are sealed by a sealing ring, and the external pipe 603 can be connected with the straight pipe 602 after passing through the rear end cover 5, and the through slot 14 can connect the lines of the rotor 3 and the stator 2.

[0047] The heat dissipation mechanism of the motor in this embodiment ensures that the entire casing 1 can dissipate heat through the arrangement of the coil 6, and ensures that the coolant in the coil 6 can circulate through the arrangement of the impeller 7 to improve the heat dissipation efficiency. The arrangement of the circular sleeve 15 ensures that the stator 2 can be fixed on the casing 1 to improve the stability of the motor. The coordinated arrangement of the arc tube 601 and the straight tube 602 facilitates the disassembly of the coil 6 for easy maintenance. The coordinated arrangement of the bin body 8 and the cover 804 facilitates the maintenance of the bin body 8 to avoid blockage of the oil circuit. Embodiment 2

[0048] This embodiment relates to a motor, such as Figure 6 As shown, the motor heat dissipation mechanism is provided in the motor. This embodiment can improve the heat dissipation efficiency and increase the service life of the motor by providing the motor heat dissipation mechanism.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor heat dissipation mechanism, characterized in that: include: A casing (1), wherein a stator (2) is fixedly arranged in the casing (1), a rotor (3) rotatably arranged in the stator (2), and a front cover (4) and a rear cover (5) fixedly arranged at two ends of the casing (1), and two ends of the rotor (3) respectively penetrate the front cover (4) and the rear cover (5); A coil (6) coiled on the inner wall of the casing (1); An impeller (7) is fixedly arranged at one end of the rotor (3) extending out of the rear end cover (5); a housing (8) is provided on the outer cover of the impeller (7); and the housing (8) is fixedly connected to the casing (1).

2. The motor heat dissipation mechanism according to claim 1, characterized in that: A circular sleeve (15) is fixedly arranged inside the casing (1), the coil (6) is coiled between the circular sleeve (15) and the casing (1), and the stator (2) is fixedly arranged on the inner wall of the circular sleeve (15).

3. The motor heat dissipation mechanism according to claim 1, characterized in that: A wind shield (9) is fixedly provided at the rear end cover (5) of the casing (1), and a fan blade (10) is fixedly provided at one end of the rotor (3) extending out of the rear end cover (5), and the fan blade (10) and the impeller (7) are arranged in an arranged manner on the rotor (3).

4. The motor heat dissipation mechanism according to claim 3, characterized in that: A support rod (11) is fixedly provided on the outer side wall of the bin body (8), a mounting plate (12) is fixedly provided on the support rod (11), and the mounting plate (12) is fixedly connected to the wind shield (9).

5. The motor heat dissipation mechanism according to claim 1, characterized in that: The coil (6) comprises an arc-shaped tube (601) and a straight tube (602) connected to the arc-shaped tube (601); the arc-shaped tube (601) and the straight tube (602) are connected to each other in multiple groups; and both ends of the coil (6) are connected to each other with external tubes (603); An inlet (801) and an outlet (802) are provided on the warehouse body (8), and the two external pipes (603) are respectively connected and arranged at the inlet (801) and the outlet (802).

6. The motor heat dissipation mechanism according to claim 1, characterized in that: A dynamic seal is provided between the silo (8) and the rotor (3); an end of the silo (8) facing away from the motor is an opening (803); and the opening (803) of the silo (8) is closed by a sealing cover (804).

7. The motor heat dissipation mechanism according to claim 5, characterized in that: The rear end cover (5) is provided with a through hole (13), and the external pipe (603) passes through the through hole (13).

8. The motor heat dissipation mechanism according to claim 2, characterized in that: The circular sleeve (15) is provided with a through slot (14) for the line to pass through.

9. A motor, characterized in that: The motor is provided with a motor heat dissipation mechanism according to any one of claims 1 to 8.

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