Permanent magnet synchronous motor control heat dissipation mechanism

Abstract

The utility model relates to the technical field of motors, in particular to a permanent magnet synchronous motor control heat dissipation mechanism. In order to solve the problem of poor heat dissipation effect caused by the fact that heat dissipation fins are generally arranged in a static state in a common heat dissipation mode, the following technical scheme is provided: the permanent magnet synchronous motor comprises a permanent magnet synchronous motor main body of which the output end is provided with a positioning port; a ventilation cavity is annularly formed in a shell of the permanent magnet synchronous motor body, and the permanent magnet synchronous motor body is sleeved with a ventilation protective cover facilitating protection of the permanent magnet synchronous motor body. The heat dissipation structure is controlled to rotate to suck air, meanwhile, the purpose of improving the heat dissipation effect is achieved, the heat dissipation structure is protected in the heat dissipation process, and workers are prevented from being accidentally injured in the rotating process.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a control heat dissipation mechanism for a permanent magnet synchronous motor. Background Art

[0002] Permanent magnet synchronous motors (PMSMs), a type of modern electric motor, are commonly used in applications requiring high efficiency and precise control, such as electric vehicles, industrial machinery, and household appliances. Heat dissipation is a key consideration when controlling PMSMs, particularly under high load and high power density operating conditions, where the motor's heat dissipation efficiency directly impacts its performance and lifespan. Currently, heat dissipation is typically achieved through external cooling fins, which helps minimize the damage and impact of heat on the motor itself.

[0003] However, the common method of using heat dissipation fins for heat dissipation is usually static, which is not conducive to reducing the negative impact of heat on the motor itself, resulting in poor heat dissipation effect. In view of this, we propose a permanent magnet synchronous motor control heat dissipation mechanism. Utility Model Content

[0004] The purpose of the utility model is to address the problems existing in the background technology and to propose a permanent magnet synchronous motor control heat dissipation mechanism.

[0005] The technical solution of the present utility model is as follows: a permanent magnet synchronous motor control heat dissipation mechanism, comprising a permanent magnet synchronous motor body with a positioning opening on the output end, a ventilation cavity being provided in an annular state on the outer shell of the permanent magnet synchronous motor body, a breathable protective cover being sleeved on the permanent magnet synchronous motor body for protecting the permanent magnet synchronous motor body, a support leg for supporting the breathable protective cover being connected to the bottom wall of the breathable protective cover, a rotatable transmission component being installed at the opening on the wall facing the front of the permanent magnet synchronous motor body, a heat dissipation component being sleeved on the outer ring surface of the permanent magnet synchronous motor body for dissipating heat from the permanent magnet synchronous motor body, and a guide collar being provided on the inner ring surface of the breathable protective cover for assisting the rotation of the heat dissipation component.

[0006] Preferably, the transmission assembly includes an isolation turntable, a first limiting ring is sleeved on the outer ring surface of the isolation turntable, and a vertical shaft is welded at the central opening of the isolation turntable.

[0007] Preferably, a first limiting rotation groove is provided on the surface of the opening of the breathable protective cover, and the first limiting ring is arranged in the first limiting rotation groove.

[0008] Preferably, the output end of the permanent magnet synchronous motor body passes through the opening in the middle of the isolation turntable, and the vertical axis is arranged in a positioning opening provided on the output end opening of the permanent magnet synchronous motor body.

[0009] Preferably, the heat dissipation assembly includes spiral heat dissipation fins, and a first rotating cylinder and a second rotating cylinder are connected to the bottom wall of multiple spiral heat dissipation fins. The inner ring surfaces of the first rotating cylinder and the second rotating cylinder are connected to bearings, and the two bearings are symmetrically arranged on the outer ring surface of the permanent magnet synchronous motor body.

[0010] Preferably, a second limiting ring is sleeved on the outer ring surface of the first rotating drum, a second limiting rotation groove is opened on the inner ring surface of the guide ring, and the second limiting ring is arranged in the second limiting rotation groove.

[0011] Preferably, a second limiting ring is sleeved on the outer ring surface of the first rotating drum, a second limiting rotation groove is opened on the inner ring surface of the guide ring, and the second limiting ring is arranged in the second limiting rotation groove.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] The utility model is beneficial to the heat dissipation of the permanent magnet synchronous motor main body through the arrangement of multiple spiral heat dissipation fins. At the same time, under the connection action of the transmission component, the output end of the permanent magnet synchronous motor main body can drive the first rotating drum to rotate during the rotation, so that the spiral heat dissipation fins can rotate under the rotation action of the first rotating drum, thereby achieving the purpose of suction, facilitating the use of air to pass through the ventilation cavity opened on the permanent magnet synchronous motor main body shell, thereby improving the heat dissipation effect of the permanent magnet synchronous motor main body, and under the protection of the breathable protective cover, avoiding accidental injury to workers during the rotation of the spiral heat dissipation fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an isometric structural diagram of a permanent magnet synchronous motor control heat dissipation mechanism;

[0015] Figure 2 yes Figure 1 A schematic diagram of the right-side cross-sectional structure;

[0016] Figure 3 yes Figure 1 Isometric structural diagram of the transmission assembly.

[0017] Figure numerals: 1. permanent magnet synchronous motor body; 2. breathable protective cover; 3. support leg; 4. transmission assembly; 41. isolation turntable; 42. first limiting ring; 43. vertical axis; 5. heat dissipation assembly; 51. spiral heat dissipation fins; 52. first rotating drum; 53. second rotating drum; 54. second limiting ring; 6. guide sleeve. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figure 1-3 As shown, the utility model proposes a permanent magnet synchronous motor control heat dissipation mechanism, including a permanent magnet synchronous motor body 1 with a positioning port on the output end, a plurality of air inlet holes on the outer surface of the permanent magnet synchronous motor body 1, and a plurality of ventilation cavities distributed in a circular array on the outer shell surface of the permanent magnet synchronous motor body 1. The plurality of air inlet holes are connected to the ventilation cavities corresponding to the positions, so as to facilitate the heat dissipation of the permanent magnet synchronous motor body 1; the permanent magnet synchronous motor body 1 is arranged in a breathable protective cover 2, and the back wall of the permanent magnet synchronous motor body 1 is fixedly connected to the inner surface wall of the breathable protective cover 2; a plurality of support legs 3 are fixedly installed on the bottom wall of the breathable protective cover 2 for supporting the breathable protective cover 2.

[0021] Furthermore, the permanent magnet synchronous motor body 1 is provided with a rotatable transmission assembly 4 at the opening on the wall facing the front, and the transmission assembly 4 includes an isolation turntable 41, which is installed in the opening on the wall facing the air permeable protective cover 2. The middle part of the isolation turntable 41 is in an open state, so that the output end of the permanent magnet synchronous motor body 1 passes through the opening in the middle part of the isolation turntable 41, so that the isolation turntable 41 cooperates with the air permeable protective cover 2 to protect the permanent magnet synchronous motor body 1 while avoiding affecting the operation of the permanent magnet synchronous motor body 1; the first limiting ring 42 is fixedly sleeved on the outer surface of the isolation turntable 41 The ring surface is arranged in the first limiting rotation groove opened on the inner surface wall of the opening of the breathable protective cover 2, which is used to assist the rotation of the isolation turntable 41 while preventing the isolation turntable 41 from separating from the breathable protective cover 2 during the rotation, so as to prevent affecting the protection of the permanent magnet synchronous motor body 1; the vertical axis 43 is located in the opening in the middle part of the isolation turntable 41, and the top and bottom ends of the vertical axis 43 are fixedly connected to the wall of the middle opening of the isolation turntable 41, and are also arranged in the positioning port opened on the output end of the permanent magnet synchronous motor body 1, so as to facilitate the rotation of the isolation turntable 41 by the permanent magnet synchronous motor body 1 during the driving process.

[0022] Furthermore, a heat dissipation component 5 is sleeved on the outer ring surface of the permanent magnet synchronous motor body 1 for dissipating heat to the permanent magnet synchronous motor body 1. The heat dissipation component 5 includes spiral heat dissipation fins 51. The first rotating cylinder 52 and the second rotating cylinder 53 are both sleeved on the outer ring of the permanent magnet synchronous motor body 1. Bearings are provided on the inner ring surfaces of the first rotating cylinder 52 and the second rotating cylinder 53. The inner ring surfaces of the two bearings are connected to the outer ring surface of the permanent magnet synchronous motor body 1. A plurality of spiral heat dissipation fins 51 are installed in an annular state on the outer ring surfaces of the first rotating cylinder 52 and the second rotating cylinder 53 for dissipating heat to the permanent magnet synchronous motor body 1. At the same time, the end of the first rotating cylinder 52 is fixedly connected to the back wall of the isolation turntable 41, so that the isolation turntable 41 can cooperate with the bearing and the second rotating cylinder 53 to drive the spiral heat dissipation fins 51 during the rotation process. 1 rotates, which is conducive to driving the circulation of surrounding air, thereby improving the heat dissipation effect of the permanent magnet synchronous motor main body 1 in turn, and under the action of the air inlet holes and the ventilation cavity opened on the permanent magnet synchronous motor main body 1, it is conducive to promoting air flow and increasing the heat dissipation contact area of ​​the permanent magnet synchronous motor main body 1, further improving the heat dissipation effect; a discharge pipe is connected to the outer wall of the breathable protective cover 2 to facilitate the discharge of air in the breathable protective cover 2 to avoid affecting the heat dissipation of the permanent magnet synchronous motor main body 1; the guide collar 6 is fixedly mounted on the inner ring surface of the breathable protective cover 2, and the second limiting ring 54 is fixedly sleeved on the outer ring surface of the first rotating drum 52, and is also arranged in the second limiting rotation groove opened on the inner ring surface of the guide collar 6, for assisting the rotation of the first rotating drum 52 while maintaining the stability of the first rotating drum 52 during the rotation process.

[0023] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A permanent magnet synchronous motor control heat dissipation mechanism, comprising a permanent magnet synchronous motor body (1) with a positioning opening on an output end, a ventilation cavity provided in an annular shape on a shell of the permanent magnet synchronous motor body (1), and characterized in that: The permanent magnet synchronous motor body (1) is provided with a breathable protective cover (2) for protecting the permanent magnet synchronous motor body (1); a support leg (3) for supporting the breathable protective cover (2) is connected to the bottom wall of the breathable protective cover (2); a rotatable transmission component (4) is installed at the opening on the wall of the permanent magnet synchronous motor body (1); a heat dissipation component (5) for dissipating heat from the permanent magnet synchronous motor body (1) is provided on the outer ring surface of the permanent magnet synchronous motor body (1); and a guide ring (6) for assisting the heat dissipation component (5) in rotating is provided on the inner ring surface of the breathable protective cover (2).

2. A permanent magnet synchronous motor control heat dissipation mechanism according to claim 1, characterized in that: The transmission assembly (4) comprises an isolation rotary disc (41), a first limiting ring (42) is sleeved on the outer ring surface of the isolation rotary disc (41), and a vertical shaft (43) is welded at the central opening of the isolation rotary disc (41).

3. A permanent magnet synchronous motor control heat dissipation mechanism according to claim 2, characterized in that: A first position-limiting rotation groove is provided on the surface of the opening of the breathable protective cover (2), and the first position-limiting ring (42) is arranged in the first position-limiting rotation groove.

4. A permanent magnet synchronous motor control heat dissipation mechanism according to claim 3, characterized in that: The output end of the permanent magnet synchronous motor body (1) passes through an opening in the middle of the isolation turntable (41), and the vertical axis (43) is arranged in a positioning opening provided on the output end opening of the permanent magnet synchronous motor body (1).

5. A permanent magnet synchronous motor control heat dissipation mechanism according to claim 1, characterized in that: The heat dissipation assembly (5) includes spiral heat dissipation fins (51), a first rotating cylinder (52) and a second rotating cylinder (53) are connected to the bottom wall of the plurality of spiral heat dissipation fins (51), the inner ring surfaces of the first rotating cylinder (52) and the second rotating cylinder (53) are connected to bearings, and the two bearings are symmetrically sleeved on the outer ring surface of the permanent magnet synchronous motor body (1).

6. A permanent magnet synchronous motor control heat dissipation mechanism according to claim 5, characterized in that: A second limiting ring (54) is sleeved on the outer ring surface of the first rotating drum (52), a second limiting rotation groove is opened on the inner ring surface of the guide sleeve (6), and the second limiting ring (54) is arranged in the second limiting rotation groove.

7. The permanent magnet synchronous motor control heat dissipation mechanism according to claim 1, characterized in that: A plurality of air inlet holes are provided on the outer surface wall of the permanent magnet synchronous motor body (1), and the plurality of air inlet holes are connected to ventilation cavities at corresponding positions.

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