Easy-to-position and easy-to-radiate rotor punching sheet

Abstract

The utility model discloses a rotor punching sheet convenient to position and easy to dissipate heat, which comprises a punching sheet body, the punching sheet body is in a disc shape, the surface of the punching sheet body is provided with a rotating shaft mounting groove, the inner surface of the rotating shaft mounting groove is provided with a connecting key mounting groove, and the surface of the punching sheet body is provided with a positioning anti-deviation mechanism. The rotor punching sheet convenient to position and easy to dissipate heat is provided with the limiting bumps and the anti-skid positioning grooves, so that when the rotor punching sheet works, the two punching sheet bodies are connected and limited by stacking the punching sheet bodies and mutually inserting and matching the limiting bumps and the anti-skid positioning grooves, the punching sheet bodies are prevented from sliding and shifting, the connection stability is improved, and the service life of the rotor punching sheet is prolonged. And when the punching sheet bodies are stacked, the punching sheet body at one end is reversely mounted, so that the limiting convex blocks on the surfaces of the punching sheet bodies cannot protrude, the practicability is improved, and reverse mounting of the punching sheet bodies is facilitated through symmetrical design of the two ends of the anti-skid positioning grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor punching sheets, in particular to a rotor punching sheet which is easy to position and dissipate heat. Background Art

[0002] The motor rotor refers to the rotating part of the motor. The motor consists of two parts, the rotor and the stator. It is a device used to realize the conversion of electrical energy into mechanical energy and mechanical energy into electrical energy. The motor rotor is divided into two types: inner rotor rotation mode and outer rotor rotation mode. The inner rotor rotation mode is that the core in the middle of the motor is the rotating body, outputting torque or inputting energy. The outer rotor rotation mode is that the outer body of the motor is the rotating body. Different modes facilitate the application in various occasions. The rotor punching is an important component of the motor rotor. The rotor of the motor is usually composed of an iron core and a winding, and the rotor punching is the basic unit of the iron core. The rotor punching is generally made of thin sheet electrical steel strip through a stamping process. There are usually some slots of specific shapes on the punching for placing the rotor winding.

[0003] Multiple rotor punchings are stacked together to form an integral iron core structure, which provides a good magnetic conduction path for the motor's magnetic field, helping to improve the motor's electromagnetic conversion efficiency and operating stability. The rotor punchings need to be stacked and combined when in use. However, the existing rotor punchings have no limiting structure between each other, which makes them easy to offset during use, thereby affecting the stability of the coil wound on the surface of the rotor punchings. Utility Model Content

[0004] The purpose of the present utility model is to provide a rotor punching that is easy to position and easy to dissipate heat, so as to solve the problem proposed in the above background technology that the existing rotor punchings have no limiting structure between each other, which leads to easy deviation during use, thereby affecting the stability of the coil wound on the surface of the rotor punching.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotor punching sheet that is easy to position and easy to dissipate heat, comprising a punching sheet body, which is a disc-shaped design, a rotating shaft mounting groove being provided on the surface of the punching sheet body, a connecting key mounting groove being provided on the inner surface of the rotating shaft mounting groove, a positioning anti-drift mechanism being provided on the surface of the punching sheet body, which prevents the stacked punching sheets from being shifted and loosened by the mutual engagement of the limiting protrusion and the anti-slip positioning groove, and a coil winding groove being provided on the side surface of the punching sheet body.

[0006] Preferably, the inner wall of the connecting key installation groove is designed to be arc-shaped, and the connecting key installation groove is arranged in a ring array relative to the center of the rotating shaft installation groove.

[0007] By adopting the above technical solution, the connecting key mounting grooves are arranged in a circular array relative to the center of the rotating shaft mounting groove, so that the connecting key mounting grooves are easy to connect and dissipate heat, and at the same time, the connecting key mounting grooves are easy to cooperate with the rotation adjustment of this device.

[0008] Preferably, the positioning and anti-deviating mechanism comprises a limiting protrusion, which is fixedly connected to the upper surface of the punch body, and an anti-slip positioning groove is provided on the surface of the punch body.

[0009] By adopting the above technical solution, the limiting protrusion of the anti-drift mechanism is positioned so that multiple punching sheet bodies are stacked and engaged to prevent sliding and drifting.

[0010] Preferably, the two limiting protrusions are symmetrically arranged relative to the center of the punch body, and the anti-slip positioning groove and the limiting protrusion are respectively arranged corresponding to the connecting key installation groove.

[0011] By adopting the above technical solution, the limiting protrusion and the anti-slip positioning groove are engaged and fixed, so that the limiting protrusion and the anti-slip positioning groove position two adjacent punching sheet bodies.

[0012] Preferably, the vertical cross-section of the limiting protrusion is designed as an isosceles trapezoid, and the width of the upper end of the limiting protrusion is greater than the width of the lower end of the limiting protrusion. The inner wall of the anti-slip positioning groove is designed to be inclined, and the width of the two ends of the anti-slip positioning groove is greater than the width of the middle part of the anti-slip positioning groove.

[0013] By adopting the above technical solution, the limiting protrusion and the anti-slip positioning groove are engaged by matching their shapes, and the anti-slip positioning groove increases the contact area for heat dissipation.

[0014] Preferably, the inner wall of the coil winding groove is designed to be arc-shaped, and the width of the coil winding groove gradually decreases as it approaches the center of the punch body. The inner wall of the coil winding groove is evenly provided with heat dissipation openings, and the inner wall of the coil winding groove is fixedly connected with two fastening airbags.

[0015] By adopting the above technical solution, the inner wall of the groove wound by the coil is designed to be arc-shaped to reduce damage, and the contact area is increased through the heat dissipation opening to dissipate heat.

[0016] Preferably, the coil winding grooves are arranged in a circular array relative to the center of the punching body, the heat dissipation opening is designed as a long strip, a cavity is provided inside the fastening airbag, and an adjustment air groove is provided on the surface of the punching body, and the adjustment air groove is connected to the two adjacent fastening airbags.

[0017] By adopting the above technical solution, the expansion of the air in the regulating air groove is adjusted so that the air in the regulating air groove pushes the fastening air bag to expand, so that the fastening air bag limits the coil.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the easy-to-position and heat-dissipating rotor punching:

[0019] 1. A limiting protrusion and an anti-slip positioning groove are provided so that when the device is working, the limiting protrusion and the anti-slip positioning groove are plugged into each other by stacking the punching bodies, thereby limiting the connection of the two punching bodies and preventing the punching bodies from sliding and deflecting, thereby improving the stability of the connection. When stacking the punching bodies, the punching body at one end is installed in reverse so that the limiting protrusion on the surface of the punching body does not protrude, thereby improving practicality. In addition, the symmetrical design of the two ends of the anti-slip positioning groove facilitates the reverse installation of the punching body.

[0020] 2. The device is equipped with a connecting key installation groove and a coil winding groove. When the device is working, the connecting key installation grooves in the annular array facilitate the angle adjustment of the punch body without interfering with the normal installation of the key body. The remaining connecting key installation grooves are interconnected, thereby increasing the contact area with the air and improving the heat dissipation effect. The arc design of the inner wall of the coil winding groove reduces the wear on the coil.

[0021] 3. A heat dissipation opening and a fastening airbag are provided so that when the device is working, the contact area between the device and the air is increased through the heat dissipation opening, thereby further improving the heat dissipation and cooling effect. In addition, when the device is working, the overall temperature of the device rises, causing the air inside the regulating air tank to expand due to the heat, and the fastening airbag is pushed to expand by the air, so that the fastening airbag limits the coil, thereby improving the stability of the coil installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall top view of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the punch body and the rotating shaft mounting groove of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the rotating shaft installation groove and the connecting key installation groove of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection between the punching body and the anti-slip positioning groove of the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the fastening airbag and the regulating air groove connected to the utility model.

[0028] In the figure: 1. Punch body; 2. Rotating shaft mounting slot; 3. Connecting key mounting slot; 4. Limiting protrusion; 5. Anti-slip positioning slot; 6. Coil winding groove; 7. Heat dissipation opening; 8. Fastening airbag; 9. Adjustment air slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The utility model provides a technical solution: a rotor punching sheet that is easy to position and easy to dissipate heat, including a punching sheet body 1, a rotating shaft mounting groove 2, a connecting key mounting groove 3, a limiting protrusion 4, an anti-slip positioning groove 5, a coil winding groove 6, a heat dissipation opening 7, a fastening air bag 8 and an adjusting air groove 9. The punching sheet body 1 is a disc-shaped design, and the inner wall of the connecting key mounting groove 3 is an arc-shaped design. The connecting key mounting groove 3 is arranged in a circular array relative to the center of the rotating shaft mounting groove 2. When using this device, multiple punching sheet bodies 1 are first stacked and placed so that the limiting protrusions 4 on the surface of the punching sheet body 1 are inserted into the anti-slip positioning grooves 5 on the surface of the adjacent punching sheet body 1. The limiting protrusions 4 and the anti-slip positioning grooves 5 are engaged with each other to prevent the punching sheet bodies 1 from sliding and deflecting after being stacked, thereby improving the stability of the stacking of the punching sheet bodies 1.

[0031] The surface of the punch body 1 is provided with a rotating shaft mounting groove 2, and the positioning and anti-deviation mechanism includes a limiting protrusion 4, which is fixedly connected to the upper surface of the punch body 1. The surface of the punch body 1 is provided with an anti-slip positioning groove 5, and the two limiting protrusions 4 are symmetrically arranged relative to the center of the punch body 1. The anti-slip positioning groove 5 and the limiting protrusion 4 are respectively arranged corresponding to the connecting key mounting groove 3, and when installing the punch body 1 at one end, the punch body 1 is installed in reverse so that the limiting protrusion 4 of the punch body 1 is reversely inserted into the anti-slip positioning groove 5 on the surface of the adjacent punch body 1, thereby preventing the limiting protrusion 4 on the surface of the punch body 1 at one end from protruding and affecting use. At the same time, the inclined surface of the anti-slip positioning groove 5 is conducive to increasing the contact area with the air, thereby improving the heat dissipation effect, and when installing the shaft body and the key body, the normal installation of the key body is ensured by the connecting key mounting groove 3 corresponding to the anti-slip positioning groove 5, and the remaining connecting key mounting grooves 3 are easy to connect to improve the ventilation and heat dissipation effect.

[0032] A connecting key mounting groove 3 is provided on the inner surface of the rotating shaft mounting groove 2. The vertical cross-section of the limiting protrusion 4 is an isosceles trapezoidal design, and the width of the upper end of the limiting protrusion 4 is greater than the width of the lower end of the limiting protrusion 4. The inner wall of the anti-slip positioning groove 5 is inclined, and the width of the two ends of the anti-slip positioning groove 5 is greater than the width of the middle part of the anti-slip positioning groove 5. When the coil is installed in this device, the coil is easily wound through the coil winding groove 6, and the arc design of the inner wall of the coil winding groove 6 facilitates prevention of damage to the coil. The width of the coil winding groove 6 is gradually reduced, so that the coil winding groove 6 improves the limiting effect of the coil.

[0033] The surface of the punch body 1 is provided with a positioning and anti-deviating mechanism, which prevents the stacked punch bodies 1 from deviating and loosening by the mutual engagement of the limiting protrusion 4 and the anti-slip positioning groove 5. The side surface of the punch body 1 is provided with a coil winding groove 6, the inner wall of the coil winding groove 6 is an arc-shaped design, and the width of the coil winding groove 6 gradually decreases as it approaches the center of the punch body 1. The inner wall of the coil winding groove 6 is evenly provided with heat dissipation openings 7, and the inner wall of the coil winding groove 6 is fixedly connected with two fastening airbags 8. The coil winding groove 6 is arranged in a ring array relative to the center of the punch body 1, and the heat dissipation opening 7 is The long strip design has a cavity inside the fastening airbag 8, and an adjusting air groove 9 is opened on the surface of the punching body 1, and the adjusting air groove 9 is connected with the two adjacent fastening airbags 8. When working, the heat dissipation opening 7 on the inner wall of the coil winding groove 6 is increased, thereby increasing the contact area between the device and the air, thereby improving the heat dissipation effect. Since the overall temperature of the device rises when working, the air inside the adjusting air groove 9 expands, and the air inside the adjusting air groove 9 pushes the fastening airbag 8 to expand. The coil is limited by the fastening airbag 8, thereby preventing the coil from loosening, and improving the limiting effect of the device on the coil.

[0034] Working principle: When using the easy-to-position and heat-dissipating rotor punching sheet, first stack a plurality of punching sheet bodies 1 so that the limiting protrusions 4 of adjacent punching sheet bodies 1 are inserted into the anti-slip positioning grooves 5 for engagement, thereby preventing the punching sheet bodies 1 from sliding and deflecting, and reversely plug in one end of the punching sheet body 1, and facilitate engagement through the symmetrical anti-slip positioning grooves 5 at both ends. The inclined surface of the anti-slip positioning groove 5 improves the heat dissipation effect, and the annular connecting key mounting groove 3 ensures the normal installation of the key body. At the same time, the connecting key mounting groove 3 improves the heat dissipation effect, and the coil is wound around the coil winding groove 6. The arc of the inner wall of the coil winding groove 6 reduces damage to the coil, and the heat dissipation opening 7 increases the contact area with the air and improves the heat dissipation effect. When the device is working, the overall temperature rises, causing the air in the regulating air groove 9 to expand, causing the fastening airbag 8 to expand and limit the coil, thereby increasing the overall practicality.

[0035] 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 punching piece that is easy to position and easy to dissipate heat, comprising a punching piece body (1) having a disc-shaped design, characterized in that: The surface of the punch body (1) is provided with a rotating shaft mounting groove (2), the inner surface of the rotating shaft mounting groove (2) is provided with a connecting key mounting groove (3), the surface of the punch body (1) is provided with a positioning anti-deviating mechanism, which prevents the stacked punch bodies (1) from deviating and loosening by the mutual engagement of a limiting protrusion (4) and an anti-slip positioning groove (5), and the side surface of the punch body (1) is provided with a coil winding groove (6).

2. The easy-to-position and heat-dissipating rotor punching according to claim 1, characterized in that: The inner wall of the connecting key installation groove (3) is designed to be arc-shaped, and the connecting key installation groove (3) is arranged in a ring array relative to the center of the rotating shaft installation groove (2).

3. The easy-to-position and heat-dissipating rotor punching according to claim 1, characterized in that: The positioning and anti-deviating mechanism comprises a limiting convex block (4), which is fixedly connected to the upper surface of the punch body (1), and an anti-slip positioning groove (5) is provided on the surface of the punch body (1).

4. The easy-to-position and heat-dissipating rotor punching according to claim 1, characterized in that: The two limiting protrusions (4) are symmetrically arranged relative to the center of the punch body (1), and the anti-slip positioning groove (5) and the limiting protrusion (4) are respectively arranged corresponding to the connecting key installation groove (3).

5. The easy-to-position and heat-dissipating rotor punching according to claim 1, characterized in that: The vertical cross-section of the limiting protrusion (4) is designed to be an isosceles trapezoid, and the width of the upper end of the limiting protrusion (4) is greater than the width of the lower end of the limiting protrusion (4); the inner wall of the anti-slip positioning groove (5) is designed to be inclined, and the widths of the two ends of the anti-slip positioning groove (5) are greater than the width of the middle part of the anti-slip positioning groove (5).

6. The easy-to-position and heat-dissipating rotor punching according to claim 1, characterized in that: The inner wall of the coil winding groove (6) is designed to be arc-shaped, and the width of the coil winding groove (6) gradually decreases as it approaches the center of the punching sheet body (1). The inner wall of the coil winding groove (6) is evenly provided with heat dissipation openings (7), and the inner wall of the coil winding groove (6) is fixedly connected to two fastening airbags (8).

7. The easy-to-position and heat-dissipating rotor punching according to claim 6, characterized in that: The coil winding grooves (6) are arranged in a circular array relative to the center of the punching sheet body (1); the heat dissipation openings (7) are designed in a long strip shape; a cavity is provided inside the fastening airbag (8); and an adjusting air groove (9) is provided on the surface of the punching sheet body (1), and the adjusting air groove (9) is connected to two adjacent fastening airbags (8).

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