TWI869731B - Stator filling optimization system - Google Patents

Abstract

A stator coil device includes a coil module, a core module and an insulating sleeve module. The core module includes a first side wall, a second side wall and a winding post, the winding post defines two winding grooves located at two sides for the coil module to wind, and the first side wall forms two conductive rubber grooves respectively connected to the winding grooves. The insulating sleeve module includes an insulating portion, a first limiting wall portion and a second limiting wall portion, the first limiting wall portion abuts against the first side wall, and forms a glue injection groove connected to the conductive rubber grooves, which is suitable for allowing thermal conductive glue to be injected from the glue injection groove and flow into the winding grooves respectively through the conductive rubber grooves. In this way, the heat energy of the coil module can be quickly transferred to the core module through the thermal conductive adhesive, thereby achieving the effect of improving the heat dissipation effect of the motor.

Description

Stator glue filling optimization system

The present invention relates to a coil device and an optimization system, in particular to a stator coil device and a stator glue filling optimization system.

In recent years, air pollution and carbon dioxide emission issues have gradually received attention, and the technology of green energy vehicles (such as electric vehicles) has been improved year by year and has become increasingly popular in the market. However, electric vehicles are powered by batteries and motors to provide vehicle power. As the motor output power demand increases, the heat generated by the motor also increases. Please refer to Figure 1. Curves 11 and 12 are the temperature changes of the silicon steel sheet surface and the coil surface of the stator when the conventional motor structure is running. It can be seen that the temperature of the coil rises rapidly with the running time, reaching 137.7℃ after 450 seconds of operation. When the heat energy accumulated in the motor coil is too high, it is easy to cause abnormal operation or loss of the motor due to overheating.

In order to improve the heat dissipation effect of the motor, the Republic of China's invention patent number I743667 proposed a motor coil heat dissipation structure, which introduces thermal conductive glue between the coil and the silicon steel sheet through vacuum suction, so that the heat energy generated by the coil can be dissipated through the silicon steel sheet. As shown in Figure 2, curves 13 and 14 are respectively the temperature changes of the silicon steel sheet surface and the coil surface of the stator when the motor of the motor coil heat dissipation structure is running. It can be seen that this structure can effectively reduce the coil temperature to 112.6℃ after 450 seconds of operation. However, how to further improve the heat dissipation effect is still the goal of continuous research in this field.

Therefore, the purpose of the present invention is to provide a stator coil device that can further enhance the heat dissipation effect.

Therefore, the stator coil device of the present invention includes a coil module, a core module, and an insulating sleeve module.

The core module includes a first side wall and a second side wall arranged at intervals, and a winding post connecting the first side wall and the second side wall. The winding post cooperates with the first side wall and the second side wall to define two winding grooves located on both sides of the winding post for the coil module to wind. The first side wall forms two conductive rubber grooves respectively connecting the winding grooves.

The insulating sleeve module includes an insulating portion between the coil module and the winding post to insulate the coil module and the winding post, a first limiting wall portion extending outward from the insulating portion adjacent to the first side wall, and a second limiting wall portion extending outward from the insulating portion adjacent to the second side wall. The first limiting wall portion abuts against the first side wall and forms a glue injection groove connected to the glue conductive grooves, which is suitable for allowing thermal conductive glue to be injected from the glue injection groove and flow into the winding grooves respectively through the glue conductive grooves.

Therefore, the purpose of the present invention is to provide a stator glue optimization system that can further enhance the heat dissipation effect.

Therefore, the stator glue filling optimization system of the present invention includes a stator coil device as described above and a glue filling device.

The glue filling device includes a body defining a stator slot for the stator coil device to be arranged, and two side walls, the stator slot extends along an axial direction, and the side walls close the openings of the stator slot at both ends along the axial direction.

Therefore, the purpose of the present invention is to provide a stator glue optimization system that can further enhance the heat dissipation effect.

Therefore, the stator glue filling optimization system of the present invention includes a plurality of stator coil devices as described above and a glue filling device.

The stator coil devices are arranged around an axis and each first side wall is connected to the adjacent first side wall. Each insulating sleeve module is divided into an upper insulating sleeve and a lower insulating sleeve spaced apart along the extending direction of the axis. The upper insulating sleeves and the lower insulating sleeves are respectively attached to the two ends of the core modules along the extending direction of the axis.

The glue injection device includes an annular wall surrounding the axis and being disposed on the inner side of the stator coil devices, a supporting plate radially extending from one end of the annular wall away from the glue injection grooves, and a peripheral wall extending from the supporting plate toward the glue injection grooves. The annular wall, the supporting plate and the peripheral wall cooperate to define a stator slot in an annular shape for the stator coil devices to be disposed.

The effect of the present invention is that: by forming the conductive rubber grooves connected to the winding grooves respectively on the first side wall, and forming the injection groove connected to the conductive rubber grooves on the first limiting wall, the thermal conductive rubber can be injected from the injection groove and flow into the winding grooves respectively through the conductive rubber grooves, and directly flow into the gap between the coil module and the iron core module, and penetrate into the gap of the coil module itself. In this way, the heat energy of the coil module can be quickly transferred to the iron core module by the good thermal conductivity of the thermal conductive rubber, so as to achieve the effect of improving the heat dissipation effect of the motor.

2: Stator coil device

21: Coil module

22: Iron core module

221: Winding column

222: First side wall

223: Second side wall

224: Wire winding trough

225: Rubber guide groove

226: Tenon

227: snap-in slot

23: Insulation sleeve module

24: Insulation Department

241: Put on the insulation set

242: Put on the insulation condom

25: First limiting wall

251: First upper wall

252: First lower wall

253: Glue injection tank

254: Notch

26: Second limiting wall

261: Second upper wall

262: Second lower wall

27: Upper insulation set

271: diversion wall

28: Lower insulation set

3: Glue filling device

31: Body

311: Bottom wall

312: Groove wall

32: Side wall

33: stator slot

34: Positioning piece

35:Surrounding wall

36: Carrier plate

37: Peripheral wall

4: Stator unit

91,92: Curve

L: axis

X: horizontal direction

Y: radial direction

Z: Axis direction

A1, A2, A3, A4: Glue injection points

B1, B2: Glue injection point

C1, C2: glue injection point

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a measurement curve diagram of the temperature change of the stator silicon steel sheet surface and the coil surface when a motor structure is operated; FIG. 2 is a measurement curve diagram of the temperature change of the stator silicon steel sheet surface and the coil surface when a motor of a motor coil heat dissipation structure is operated; FIG. 3 is a three-dimensional diagram of a first embodiment of the stator glue filling optimization system of the present invention. FIG. 4 is a partial exploded view of the first embodiment; FIG. 5 is an exploded view of a stator coil device of the first embodiment; FIG. 6 is a three-dimensional view of a core module and an insulating sleeve module of the first embodiment; FIG. 7 is a schematic diagram of a plurality of stator coil devices of the first embodiment combined into a stator; FIG. 8 is a three-dimensional view of the core module and an insulating sleeve of the first embodiment from another perspective; FIG. 9 is a three-dimensional view of the stator coil device of the first embodiment; FIG. FIG. 10 is a three-dimensional schematic diagram of another partial cross-section of the stator coil device of the first embodiment; FIG. 11 is a measurement curve diagram of the temperature change of the surface of the core module and the surface of a coil module when the motor used in the stator coil device of the first embodiment is running; FIG. 12 is a three-dimensional partial exploded view of a second embodiment of the stator glue filling optimization system of the present invention; FIG. 13 is an extension of the second embodiment along an axis FIG. 14 is a three-dimensional assembly diagram of a third embodiment of the stator glue filling optimization system of the present invention; FIG. 15 is a three-dimensional exploded diagram of the third embodiment; FIG. 16 is a partial enlarged schematic diagram of the third embodiment, illustrating the structure of multiple upper insulation sets and multiple lower insulation sets; FIG. 17 is a partial enlarged schematic diagram of the third embodiment; and FIG. 18 is a partial cross-sectional diagram of the third embodiment along the extension direction of an axis.

Before the present invention is described in detail, it should be noted that similar components are represented by the same numbers in the following description.

Referring to Figures 3 and 4, a first embodiment of the stator glue potting optimization system of the present invention includes a stator coil device 2 and a glue potting device 3.

Referring to Figures 4, 5 and 6, the stator coil device 2 includes a coil module 21, a core module 22 and an insulating sleeve module 23. A transverse direction X, a radial direction Y and an axial direction Z are defined which are perpendicular to each other.

The core module 22 includes a winding post 221, and a first side wall 222 and a second side wall 223 spaced apart along the radial direction Y.

The winding post 221 extends along the axial direction z and connects the center of the inner side surfaces of the first side wall 222 and the second side wall 223 facing each other. The two opposite sides of the winding post 221 along the transverse direction X cooperate with the first side wall 222 and the second side wall 223 to define two winding grooves 224, which are respectively located on both sides of the winding post 221 and are used for winding the coil module 21. The winding grooves 224 extend along the axial direction Z.

The inner side surface of the first side wall 222 (the side facing the second side wall 223) forms two conductive rubber grooves 225 extending along the axial direction Z and respectively connected to the winding grooves 224. Each of the conductive rubber grooves 225 is located adjacent to the winding post 221, that is, each of the conductive rubber grooves 225 is located adjacent to the bottom of the winding groove 224. In this way, the thermal conductive glue can flow directly into the gap between the coil module 21 and the core module 22 through the conductive rubber grooves 225, so as to achieve a better heat conduction effect. The first side wall 222 also forms a tenon 226 and a locking groove 227 corresponding to the tenon 226 on two opposite sides along the transverse direction X. In this way, each stator coil device 2 can be engaged with the engagement groove 227 and the tenon 226 of another stator coil device 2 through the tenon 226 and the engagement groove 227, respectively, to assemble into a complete stator unit 4 as shown in FIG7. It should be noted that for the sake of clarity, FIG7 does not show thermal conductive glue, but the gaps between the adjacent coil modules 21 are actually filled with thermal conductive glue.

5 and 6, the insulating sleeve module 23 includes an insulating portion 24, a first limiting wall portion 25 extending outward from the insulating portion 24 adjacent to the first side wall 222, and a second limiting wall portion 26 extending outward from the insulating portion 24 adjacent to the second side wall 223. In this embodiment, the insulating sleeve module 23 is divided into two spaced sections along the axial direction Z to provide a gap as a path for the thermal conductive adhesive to flow from the winding groove 224 into the coil module 21. However, the insulating sleeve module 23 can also be formed in one piece. In this case, the insulating portion 24 is in a ring shape surrounding the winding post 221 and has a plurality of hollow portions to provide a path for the thermal conductive glue to flow from the winding groove 224 into the coil module 21, so that the coil module 21 can transfer heat energy to the core module 22 through the thermal conductive glue.

The insulating portion 24 has an upper insulating sleeve 241 and a lower insulating sleeve 242 respectively sleeved on the two ends of the winding post 221 along the axial direction Z. The upper insulating sleeve 241 and the lower insulating sleeve 242 are both roughly U-shaped and conform to the shapes of the two ends of the winding post 221, and are provided for the coil module 21 to be wound around, thereby providing an insulating effect between the coil module 21 and the winding post 221.

The first limiting wall portion 25 has a first upper wall 251 extending outward from the upper insulating sleeve 241, and a first lower wall 252 extending outward from the lower insulating sleeve 242. The first upper wall 251 and the first lower wall 252 are both substantially parallel to the first side wall 222, and are respectively used to limit the coil module 21 from contacting the first side wall 222 and provide an insulating effect between the coil module 21 and the first side wall 222. The first upper wall 251 and the first lower wall 252 are respectively against the upper and lower edges of the first side wall 222.

Referring to FIG. 6 , FIG. 8 , FIG. 9 and FIG. 10 , the first upper wall 251 forms a glue injection groove 253 connected to the glue conducting grooves 225. The glue injection groove 253 has a slot 254 connected to the outside, which is suitable for allowing thermal conductive glue to be injected into the glue injection groove 253 through the slot 254 and flow into the winding grooves 224 through the glue conducting grooves 225. The aperture of the slot 254 along the transverse direction X is smaller than the distance of the glue conducting grooves 225 along the transverse direction X, that is, the glue injection groove 253 forms a space where the slot 254 converges, is small outside and large inside, so that the thermal conductive glue can be better accommodated and the overflow of the thermal conductive glue during the injection is reduced. For the sake of clarity, the insulating sleeve module 23 at the top in FIG. 8 is also turned 90 degrees to the right after being disassembled, so it presents a different viewing angle from the core module 22.

Referring to Figures 4, 5 and 6, the second limiting wall portion 26 has a second upper wall 261 extending outward from the upper insulating sleeve 241, and a second lower wall 262 extending outward from the lower insulating sleeve 242. The second upper wall 261 and the second lower wall 262 are both substantially parallel to the second side wall 223, and are used to limit the coil module 21 from contacting the second side wall 223 and provide an insulating effect between the coil module 21 and the second side wall 223. The second upper wall 261 and the second lower wall 262 are respectively against the upper and lower edges of the second side wall 223.

Referring to Figures 3, 4 and 5, the glue filling device 3 is suitable for setting the stator coil device 2 during glue filling, and includes a body 31 defining a stator slot 33 for setting the stator coil device 2, two side walls 32 and four positioning members 34.

The body 31 has a bottom wall 311 and two slot walls 312 extending along the axial direction Z. The slot walls 312 extend from the bottom wall 311 along two opposite sides of the transverse direction X, and cooperate with the bottom wall 311 to define the stator slot 33 extending along the axial direction Z. In this embodiment, the bottom wall 311 and the slot walls 312 are formed as one piece.

The side walls 32 are detachably fixed to the two side surfaces of the body 31 along the axial direction Z by the positioning members 34 (e.g., screws) to close the openings of the stator slot 33 at both ends along the axial direction Z.

When injecting glue, the stator coil device 2 is placed in the glue injection device 3, and the thermal conductive glue is injected from the slot 254, so that the thermal conductive glue flows into the winding slots 224 respectively through the glue injection slot 253 and the conductive glue slots 225, and flows into the gap between the coil module 21 and the core module 22 and the gap of the coil module 21 itself. In this way, a good heat conduction path from the coil module 21 to the core module 22 can be provided. In addition, since the thermal conductive glue can directly flow into the gap between the coil module 21 and the core module 22, compared with the vacuum suction method that cannot ensure the flow direction of the thermal conductive glue, the present embodiment can fully control the distribution position and amount of the thermal conductive glue. That is to say, the amount of thermal conductive glue required for the space in the glue filling device 3 and the stator coil device 2 can be estimated in advance, and the glue can be filled with the calculated amount. In this way, the amount of thermal conductive glue can be accurately controlled and glue overflow can be avoided. It is worth noting that when filling glue, three glue filling tubes (not shown) can be further used to simultaneously fill glue from the glue filling groove 253 and the glue filling points A1 and A2 in FIG. 3 (the two corners of the glue filling device 3 adjacent to the glue filling groove 253). In this way, glue can be filled from the inside (the glue filling groove 253) and the outside (the glue filling points A1 and A2) of the stator coil device 2 at the same time, which can increase the glue filling speed. Alternatively, five glue injection tubes (not shown) can be used to inject glue from the glue injection groove 253, the glue injection points A1, A2, A3, and A4 in FIG. 3 (the four corners of the glue injection device 3) at the same time, thereby further improving the glue injection speed.

Referring to Figures 4, 5 and 6, based on the above description, the effects of this embodiment are as follows:

1. By forming the conductive rubber grooves 225 connected to the winding grooves 224 respectively on the first side wall 222, and forming the injection grooves 253 connected to the conductive rubber grooves 225 on the first limiting wall portion 25, the heat conductive rubber can be injected from the injection grooves 253 by pressure spraying, and then flow into the winding grooves 224 respectively through the conductive rubber grooves 225, and directly flow into the gap between the coil module 21 and the core module 22, and then penetrate into the gap of the coil module 21 itself from the inside to the outside, so that the heat conductive rubber can be well filled in the gap between the coil module 21 and the core module 22, and the gap of the coil module 21 itself. In this way, the heat energy of the coil module 21 can be quickly transferred to the core module 22 by virtue of the good heat conductivity of the thermal conductive adhesive, and can be subsequently transferred to the motor housing (not shown) or other heat dissipation devices for cooling. Therefore, the heat dissipation effect of the motor can be improved, and the coil module 21 can be prevented from accumulating excessive heat energy and causing abnormal operation or loss of the motor.

4 and 11 , curves 91 and 92 respectively represent the temperature changes of the surface of the silicon steel sheet (i.e., the core module 22) (curve 91) and the surface of the coil module 21 (curve 92) when a motor (not shown) used in the stator coil device 2 is in operation. It shows that after the structure of this embodiment runs for 690 seconds, the temperature of the coil module 21 is still below 125℃, and at 104.2℃, the temperature difference between the core module 22 and the coil module 21 is only 1.9℃, which means that the heat conduction path between the core module 22 and the coil module 21 of this embodiment is good, and the heat energy generated by the coil module 21 can be quickly transferred to the core module 22, and it is not easy to accumulate overheating and cause abnormalities.

2. Referring to FIG. 5 and FIG. 6, the conductive rubber grooves 225 are formed on one side of the first side wall 222 facing the second side wall 223 and are respectively located near the bottom of the winding grooves 224, so that the thermal conductive rubber can flow directly into the gap between the coil module 21 and the core module 22, thereby achieving an excellent heat conduction effect.

3. By designing the aperture of the slot 254 along the horizontal direction X to be smaller than the distance of the conductive glue slots 225 along the horizontal direction X, the glue injection slot 253 can be made into an open and convergent shape. In this way, the thermal conductive glue can be better accommodated and the overflow of the thermal conductive glue during injection can be reduced.

Referring to FIG. 12 and FIG. 13 , a second embodiment of the stator glue potting optimization system of the present invention is shown. The second embodiment is similar to the first embodiment. The difference between the second embodiment and the first embodiment is that the second embodiment includes a plurality of stator coil devices 2, the stator coil devices 2 are arranged around an axis L, and each of the first side walls 222 is engaged with the adjacent first side wall 222 via the engagement groove 227 and the tenon 226. The circumferential length of each first limiting wall portion 25 can be designed to be close to the circumferential length of the first side wall 222, and the circumferential length of each second limiting wall portion 26 can be designed to be close to the circumferential length of the second side wall 223, so that the first limiting wall portions 25 touch each other along the circumferential direction, and the second limiting wall portions 26 touch each other along the circumferential direction, thereby having better stability and reducing the overflow of thermal conductive glue.

The glue potting device 3 includes an annular wall 35 which surrounds the axis L and can be arranged on the inner side of the second side walls 223 of the stator coil devices 2, a supporting plate 36 which radially extends from one end of the annular wall 35 away from the glue potting grooves 253, and a peripheral wall 37 which extends from the supporting plate 36 toward the glue potting grooves 253. The annular wall 35, the supporting plate 36 and the peripheral wall 37 cooperate to define a stator slot 33 which is annular and is used for the stator coil devices 2 to be arranged. The surrounding wall 35 is attached to the second limiting wall 26 (or the second side wall 223), and its length is greater than the extension length of the coil module 21 along the axial direction Z. The peripheral wall 37 extends from the supporting plate 36 to the first lower wall 252 (or the first side wall 222). In this way, the flow space of the thermal conductive glue can be limited and the overflow of the thermal conductive glue can be reduced.

When injecting glue, put the assembled stator coil devices 2 into the stator slot 33 of the glue injection device 3, and then glue injection can be carried out. After the heat conductive glue solidifies, the glue injection device 3 and the stator coil devices 2 are disassembled to complete. Similarly, multiple glue injection tubes (not shown) can be further used to inject glue from the glue injection slots 253 and the glue injection points B1 and B2 between the stator coil devices 2 in Figure 12 at the same time. In this way, glue injection can be carried out from the inside (the glue injection slot 253) and the outside (glue injection points B1 and B2) of the stator coil device 2 at the same time, which can increase the glue injection speed.

In this way, the second embodiment can also achieve the same purpose and effect as the first embodiment. Moreover, by assembling first and then performing the glue filling process together, the number of working steps can be reduced and the bonding and stability of the overall structure can be improved.

Referring to FIG. 14, FIG. 15 and FIG. 16, a third embodiment of the stator glue filling optimization system of the present invention is shown. The third embodiment is similar to the second embodiment. The difference between the third embodiment and the second embodiment is as follows: It should be noted that the up and down directions described below are described based on the up and down directions of FIG. 15, and for the sake of clarity of the figure, the coil modules 21 on the right half of the figure are omitted in FIG. 15.

The core modules 22 are connected to each other by the first side walls 222 and are integrally formed in a ring shape.

Each of the insulating sleeve modules 23 is divided into an upper insulating sleeve 27 and a lower insulating sleeve 28 spaced apart along the extension direction of the axis. Each of the upper insulating sleeves 27 is connected to the adjacent upper insulating sleeves 27 so that the upper insulating sleeves 27 form an integrally formed annular structure, and each of the lower insulating sleeves 28 is connected to the adjacent lower insulating sleeves 28 so that the lower insulating sleeves 28 form an integrally formed annular structure. The upper insulating sleeves 27 and the lower insulating sleeves 28 are respectively attached to the two ends of the core modules 22 along the extension direction of the axis L.

Referring to Figures 16, 17 and 18, the upper insulating sleeve 27 comprises the upper insulating sleeve 241, the first upper wall 251, the second upper wall 261 and a guide wall 271. The first upper wall 251 and the first side wall 222 extend in the same direction. The guide wall 271 extends radially from the first upper wall 251 and then extends downward to abut against the upper edge of the first side wall 222. The guide wall 271 penetrates downward from the upper surface to form the glue injection groove 253. The guide walls 271 are connected to each other to form a ring shape, and provide a flow channel for the thermal conductive glue from the glue injection groove 253 to the glue guide groove 225 through the gap formed between the first side wall 222.

Referring to Fig. 14, Fig. 15 and Fig. 18, since the core modules 22, the upper insulating sleeves 27 and the lower insulating sleeves 28 of this embodiment are all formed in one piece, the core modules 22, the upper insulating sleeves 27 and the lower insulating sleeves 28 need to be assembled first, and then the coil modules 21 are wound around them. Then, the assembled stator coil device 2 is placed in the stator slot 33 of the glue potting device 3, and glue potting can be performed. After the heat conductive glue solidifies, the glue potting device 3 and the stator coil devices 2 are disassembled to complete the process. Referring to FIG. 17 , similarly, multiple glue injection tubes (not shown) can be further used to inject glue from the glue injection grooves 253 and the glue injection points C1 and C2 between the two stator coil devices in FIG. 17 . In this way, glue can be injected from the inside (the glue injection grooves 253) and the outside (the glue injection points C1 and C2) of the stator coil device 2 at the same time, thereby increasing the glue injection speed.

In this way, the third embodiment can also achieve the same purpose and effect as the second embodiment. Moreover, by designing the core modules 22, the upper insulating sleeves 27 and the lower insulating sleeves 28 as an integral shape, the bonding degree and stability of the overall structure can be further improved.

In summary, the stator coil device and stator glue filling optimization system of the present invention can indeed achieve the purpose of the present invention.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

2: Stator coil device

21: Coil module

22: Iron core module

221: Winding column

222: First side wall

223: Second side wall

224: Wire winding trough

225: Rubber guide groove

226: Tenon

227: snap-in slot

23: Insulation sleeve module

24: Insulation Department

241: Put on the insulation set

242: Put on the insulation condom

25: First limiting wall

251: First upper wall

252: First lower wall

26: Second limiting wall

261: Second upper wall

262: Second lower wall

X: horizontal direction

Y: radial direction

Z: Axis direction

Claims (5)

A stator glue potting optimization system comprises: a stator coil device, including: a coil module, a core module, including a first side wall and a second side wall arranged at intervals, and a winding post connecting the first side wall and the second side wall, the winding post cooperates with the first side wall and the second side wall to define two winding grooves located on both sides of the winding post and for the coil module to wind, the first side wall forms two conductive glue grooves respectively connecting the winding grooves, and an insulating sleeve module, including an insulating portion located between the coil module and the winding post to insulate the coil module and the winding post, and a A first limiting wall portion extending outward from the insulating portion adjacent to the first side wall, and a second limiting wall portion extending outward from the insulating portion adjacent to the second side wall, the first limiting wall portion abuts against the first side wall and forms a glue injection groove connected to the glue conducting grooves, suitable for allowing heat conductive glue to be injected from the glue injection groove and flow into the winding grooves respectively through the glue conducting grooves; and a glue injection device, including a body defining a stator slot for the stator coil device to be set, and two side walls, the stator slot extends along an axial direction, and the side walls respectively close the openings of the stator slot at both ends along the axial direction. The stator glue potting optimization system as described in claim 1, wherein the glue guiding grooves are formed on one side of the first side wall facing the second side wall, and are respectively located at the bottom of the grooves adjacent to the winding grooves. The stator glue potting optimization system as described in claim 1, wherein the glue guide grooves are located adjacent to the winding post and are located on both sides of the winding post respectively. A stator glue potting optimization system includes: a plurality of stator coil devices arranged around an axis, each of the stator coil devices includes: a coil module, a core module, including a first side wall and a second side wall arranged at intervals, and a winding post connecting the first side wall and the second side wall, the first side wall is connected to the first side wall of the adjacent stator coil device, the winding post matches the first side wall and the second side wall The first side wall defines two winding grooves respectively located on both sides of the winding post and for the coil module to wind the wire, the first side wall forms two conductive rubber grooves respectively connected to the winding grooves, and an insulating sleeve module, including an insulating portion between the coil module and the winding post to insulate the coil module and the winding post, a first limiting wall portion extending outward from the insulating portion adjacent to the first side wall, and a second limiting wall portion extending outward from the insulating portion adjacent to the second side wall. The first limiting wall portion is against the first side wall and forms a glue injection groove connected to the glue conductive grooves, which is suitable for allowing thermal conductive glue to be injected from the glue injection groove and flow into the winding grooves respectively through the glue conductive grooves, wherein the insulating sleeve module is divided into an upper insulating sleeve group and a lower insulating sleeve group spaced apart along the extending direction of the axis, and the upper insulating sleeve group and the lower insulating sleeve group are respectively attached to the core module along the axis. The invention relates to a stator coil device, wherein the stator coil device comprises a surrounding wall surrounding the axis and being disposed on the inner side of the stator coil device, a supporting plate radially extending from one end of the surrounding wall away from the glue injection grooves, and a peripheral wall extending from the supporting plate toward the glue injection grooves. The surrounding wall, the supporting plate and the peripheral wall cooperate to define a stator slot in an annular shape for the stator coil device to be disposed. As described in claim 4, the stator glue potting optimization system, wherein each of the upper insulation sets is connected to the adjacent upper insulation sets so that the upper insulation sets form a ring structure, and each of the lower insulation sets is connected to the adjacent lower insulation sets so that the lower insulation sets form a ring structure.

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