A servo motor stator with good heat conductivity and motor

Abstract

The utility model discloses a good servo motor stator and motor of heat conductivity, after the stator of good servo motor stator splicing circle is installed into servo motor casing, from the bottom of casing from below and above injection epoxy resin glue, and epoxy resin glue fills into the gap of skeleton and stator core through the flow channel one, flow channel two, empty space of setting of inside surface of framework filling flow, can let glue liquid more evenly fill in the gap after glue injection and vacuumizing, air can be discharged upwards, and the existence of air and gap is reduced after solidification, thereby realizing the effect of secondary insulation and heat dissipation assistance, and the insulation effect between skeleton and stator core is good, and the enameled wire does not stick to the core when winding, plus the even filling of epoxy resin glue in the gap can reach the purpose of insulation, can directly cancel the existence of insulating paper, prevents the displacement or damage of insulating paper during installation, the situation of operator mistake, reduces the occurrence and operation procedure of exception, and improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, it relates to a servo motor stator and motor with good thermal conductivity. Background Technology

[0002] When a motor is running, the core and windings generate heat. Air has poor thermal conductivity, and the gaps between the insulation paper and the core, along with the air, form an insulating layer that hinders heat transfer from the windings through the insulation paper to the core, from which it can then dissipate. This causes the internal temperature of the motor to rise, affecting its heat dissipation. Prolonged high temperatures accelerate the aging of the motor's insulation materials, shortening its lifespan and potentially leading to insulation failures, thus disrupting normal operation. Therefore, it is necessary to find a more effective insulation method to address these problems. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a servo motor stator and motor with good thermal conductivity, in order to solve the technical problems in the prior art such as poor adhesion between the insulating paper and the iron core, poor heat dissipation performance, decreased insulation performance, and complex assembly process.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides a servo motor stator with good thermal conductivity, including a stator core and two frames disposed on the outer sides of the upper and lower ends of the stator core. The frames are clamped on the end faces of the stator core by clamping arms on both sides. A flow channel is provided on the inner surface of the frame close to the stator core in the middle, with parallel clamping arms penetrating the inner surface. The two ends of the flow channel extend to the outermost side of the end face of the stator core to form two inflow holes.

[0006] Furthermore, the inner surface is also provided with a second flow guide channel that intersects with the first flow guide channel. The second flow guide channel extends to and passes through the two clamping arms on both sides, and the second flow guide channel passes through both ends of the two clamping arms to form two outflow holes.

[0007] Furthermore, the portion of the second flow guide channel on the inner surface is perpendicular to the first flow guide channel and is located in the middle of the inner surface.

[0008] Furthermore, a pin fixing position is provided on the rear side of the frame, and two fixing holes are provided on the pin fixing position. Pins are fixedly installed in the two fixing holes and electrically connected to the stator core.

[0009] Furthermore, a clearance space is provided between the pin fixing position and the stator core.

[0010] Furthermore, the stator core is also wound with insulating paper from the top to the bottom, and the two frames are clamped on the outside of the insulating paper at the end face of the stator core by clamping arms on both sides.

[0011] Additionally, an electric motor is provided, comprising: a stator assembly, which adopts the thermally conductive servo motor stator described in any of the above claims; a rotor assembly adapted to be assembled on the stator assembly; and a bracket housing assembly for mounting the stator assembly and the rotor assembly.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the stator, which includes the servo motor stator with good thermal conductivity as described in this utility model, is installed into the servo motor housing, epoxy resin is injected from the bottom of the housing from bottom to top. The epoxy resin flows into the gap between the frame and the stator core through the guide channel 1, guide channel 2 and the gap filling set on the inner surface of the frame. At the same time, vacuuming after injection allows the resin to fill the gap more evenly, and air can be discharged upwards. After curing, the presence of air and gaps is reduced, thereby achieving the function of secondary insulation and heat dissipation assistance, conducting heat to the motor housing, dissipating excess heat, and effectively preventing the motor from overheating. In addition, the insulation effect between the frame and the stator core is good, and the enameled wire will not stick to the core when winding. In addition, the even filling of the gap with epoxy resin achieves the purpose of insulation, which can directly eliminate the need for insulating paper, preventing the insulating paper from shifting or being damaged during installation, and reducing operator errors and omissions. This reduces the occurrence of abnormalities and operation procedures, and improves product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the thermally conductive servo motor stator structure in an embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram showing the disassembled stator of a servo motor with good thermal conductivity in an embodiment of this utility model;

[0015] Figure 3 This is a schematic diagram of the skeleton structure in an embodiment of this utility model.

[0016] The annotations in the attached figures are explained as follows:

[0017] Stator core 10, frame 20, clamping arm 21, inner surface 22, pin fixing position 23, fixing hole 231, flow channel one 30, inflow hole 31, flow channel two 40, outflow hole 41, pin 50, clearance position 60. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] refer to Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this utility model is a servo motor stator with good thermal conductivity, including a stator core 10 and two frames 20 disposed on the outer sides of the upper and lower ends of the stator core 10. Importantly, the frames 20 are clamped onto the end faces of the stator core 10 by clamping arms 21 on both sides. A guide channel 30, parallel to the clamping arms 21 and penetrating the inner surface 22, is provided on the middle of the frames 20 close to the inner surface 22 of the stator core 10. The two ends of the guide channel 30 extend to the outermost side of the end face of the stator core 10, forming two inflow holes 31. During epoxy resin injection after motor assembly, the epoxy resin can enter the guide channel 30 through the inflow holes 31, allowing the resin to easily fill the gap between the frames 20 and the end faces of the stator core 10, improving adhesion, reducing the presence of air and gaps, and effectively improving the heat dissipation and insulation performance of the stator.

[0020] Furthermore, in some embodiments, such as Figure 1 and Figure 3 As shown, to better ensure the flow of liquid adhesive within the gaps, a second flow channel 40, intersecting with the first flow channel 30, is also provided on the inner surface 22. The second flow channel 40 extends to and passes through the two clamping arms 21 on both sides, forming two outflow holes 41 at both ends of the second flow channel 40. When applying adhesive after motor assembly, epoxy resin adhesive can flow in through the inflow hole 31 and then flow out from the second flow channel 40. This allows for better filling of the gaps between the frame 20 and the stator core 10 end face, and between the clamping arm 21 and the side of the stator core 10 with epoxy resin adhesive. The inflow and outflow process allows the adhesive to be filled more evenly into all gaps, improving the fit and reducing the presence of air and gaps.

[0021] The main point of this utility model is that, after the stator, which includes a servo motor stator with good thermal conductivity as described in this utility model, is installed into the servo motor housing, epoxy resin is injected from the bottom of the housing upwards. The epoxy resin flows into the gap between the frame 20 and the stator core 10 through the first guide channel 30 and the second guide channel 40 provided on the inner surface 22 of the frame 20. At the same time, vacuuming after injection allows the resin to fill the gap more evenly, and air can be discharged upwards. After curing, the presence of air and gaps is reduced, thereby achieving the function of secondary insulation and heat dissipation assistance, conducting heat to the motor housing, dissipating excess heat, and effectively preventing the motor from overheating. Furthermore, the insulation effect between the frame 20 and the stator core 10 is good, and the enameled wire will not stick to the core during winding. In addition, the even filling of the gap with epoxy resin achieves the purpose of insulation, which can directly eliminate the need for insulating paper, preventing the insulating paper from shifting or being damaged during installation, and reducing operator errors and omissions, thus reducing the occurrence of abnormalities and operation procedures, and improving product quality.

[0022] Furthermore, in some embodiments, such as Figure 3 As shown, in order to distribute the flow channels more evenly in the gap, the part of the second flow channel 40 on the inner surface 22 is perpendicular to the first flow channel 30 and located in the middle of the inner surface 22. In this way, the flow channels can be better distributed in the gap between the frame 20 and the stator core 10.

[0023] Furthermore, in some embodiments, such as Figure 2 and Figure 3 As shown, in order to facilitate the electrical connection of the stator core 10, a pin fixing position 23 is provided on the rear side of the frame 20. The pin fixing position 23 is provided with two fixing holes 231. Pins 50 are fixedly installed in the two fixing holes 231 respectively and electrically connected to the stator core 10. This arrangement facilitates the assembly of the motor and can ensure the insulation between the pins 50.

[0024] Furthermore, in some embodiments, such as Figure 2 As shown, in order to better ensure the insulation performance of the motor, a clearance 60 is provided between the pin fixing position 23 and the stator core 10. When applying glue after the motor is assembled, the epoxy resin can enter through the clearance 60 and fill the gap between the frame 20 and the end face of the stator core 10, which can effectively improve the insulation performance of the motor and effectively prevent electrical faults.

[0025] Furthermore, in some embodiments, the structure of this utility model is also applicable to cases where the insulating paper is not removed. The stator core 10 is wound with insulating paper from the top to the bottom. Two frames 20 are clamped by clamping arms 21 on both sides and are positioned on the outside of the insulating paper at the end face of the stator core 10. In this way, during glue injection, the epoxy resin glue flows into the gap between the insulating paper and the stator core 10 through the first guide channel 30 and the second guide channel 40 provided on the inner surface 22 of the frame 20, improving the fit and reducing the presence of air and gaps between the insulating paper and the stator core 10, which can effectively improve the heat dissipation and insulation performance of the stator.

[0026] Additionally, a motor is provided, comprising a stator assembly using a servo motor stator with good thermal conductivity as described above; a rotor assembly adapted to be assembled on the stator assembly; and a bracket housing assembly for mounting the stator assembly and the rotor assembly. By employing the servo motor stator with good thermal conductivity as described in this invention, epoxy resin can be effectively injected into the gaps after gluing, resulting in better heat dissipation and insulation performance compared to other motors.

[0027] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0028] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A servo motor stator with good thermal conductivity, comprising a stator core (10) and two frames (20) disposed on the outer sides of the upper and lower ends of the stator core (10), characterized in that: The frame (20) is clamped and mounted on the end face of the stator core (10) by clamping arms (21) on both sides. A guide channel (30) with parallel clamping arms (21) penetrating the inner surface (22) of the stator core (10) is provided on the middle part of the frame (20). The two ends of the guide channel (30) extend to the outermost side of the end face of the stator core (10) to form two inflow holes (31).

2. The servo motor stator with good thermal conductivity according to claim 1, characterized in that: The inner surface (22) is also provided with a second flow channel (40) that intersects with the first flow channel (30). The second flow channel (40) extends to the two clamping arms (21) on both sides and passes through the two clamping arms (21). The second flow channel (40) passes through both ends of the two clamping arms (21) to form two outflow holes (41).

3. The servo motor stator with good thermal conductivity according to claim 2, characterized in that: The portion of the second flow channel (40) on the inner surface (22) is perpendicular to the first flow channel (30) and is located in the middle of the inner surface (22).

4. The servo motor stator with good thermal conductivity according to claim 1, characterized in that: The frame (20) is provided with a pin fixing position (23) on the rear side. The pin fixing position (23) is provided with two fixing holes (231). Each of the two fixing holes (231) is fixed with a pin (50) which is electrically connected to the stator core (10).

5. The servo motor stator with good thermal conductivity according to claim 4, characterized in that: An empty space (60) is provided between the pin fixing position (23) and the stator core (10).

6. The servo motor stator with good thermal conductivity according to claim 1, characterized in that: The stator core (10) is also wrapped with insulating paper from the top to the bottom. The two frames (20) are clamped by clamping arms (21) on both sides to the outside of the insulating paper at the end face of the stator core (10).

7. An electric motor, characterized in that, include: A stator assembly, wherein the thermally conductive servo motor stator described in any one of claims 1 to 6 is employed; Rotor assembly, adapted to be assembled on the stator assembly; bracket housing assembly, used to mount the stator assembly and rotor assembly.

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