Glue filling pads, motor stators, motors and electrical equipment

Abstract

The present invention discloses a glue-filling pad, a motor stator, a motor and an electrical device, wherein the glue-filling pad comprises a glue pad body and a glue-filling nozzle; wherein the glue pad body is provided with a bearing sleeve portion and a glue-filling groove surrounding the outer periphery of the bearing sleeve portion; the glue-filling nozzle penetrates the glue pad body to connect the glue-filling groove with a glue storage source. The glue-filling pad of the present invention can be used for glue-filling a motor stator, and does not require vacuuming after glue-filling, thereby effectively simplifying the manufacturing process of the motor stator.

Description

Technical Field

[0001] The present invention relates to the technical field of motor stator manufacturing, and in particular to a glue-filled rubber pad, a motor stator, a motor and electrical equipment. Background Art

[0002] During the production and assembly process of the motor stator, the stator needs to be glued. The traditional method of glue filling for motor stators is usually to gravity fill the stator with glue from the top of the motor stator. The glue flows downward to the bottom of the stator under the action of gravity. After the glue filling is completed, a vacuum degassing device is required to remove the bubbles in the glue. However, this method of glue filling first and then vacuuming is not only complicated and cumbersome, but also the glue is prone to boiling during the vacuuming process, causing the glue to splash and contaminate other parts. Summary of the invention

[0003] The main purpose of the present invention is to propose a glue potting pad, which aims to provide a glue potting pad for potting glue for a motor stator. After the stator is potted with glue by the glue potting pad, there is no need to perform vacuum treatment, which effectively simplifies the motor stator manufacturing process.

[0004] To achieve the above-mentioned purpose, the present invention proposes a glue-potted rubber pad, which includes a glue pad body and a glue potting nozzle; wherein the glue pad body is provided with a bearing sleeve portion and a glue potting groove surrounding the outer periphery of the bearing sleeve portion; the glue potting nozzle penetrates the glue pad body to connect the glue potting groove and the glue storage source.

[0005] Optionally, the rubber pad body includes a base and an annular portion arranged along the periphery of the base; wherein the base is provided with the bearing sleeve portion, and the glue pouring groove is formed between the annular portion and the bearing sleeve portion; and the glue pouring nozzle passes through the annular portion.

[0006] Optionally, the glue pouring groove is divided into a plurality of sub-glue grooves along its circumferential direction, and any one of the sub-glue grooves is connected to the glue pouring nozzle.

[0007] Optionally, at least two dividing ribs are provided in the glue pouring groove, and the at least two dividing ribs are connected to the circumferential portion and the bearing sleeve portion, so as to divide the glue pouring groove into at least two sub-glue grooves.

[0008] Optionally, the height of the separation rib protruding from the upper surface of the base is greater than the height of the outlet end of the glue filling nozzle.

[0009] Optionally, a height of the separation rib protruding relative to the upper surface of the base is smaller than a height of either the bearing sleeve portion or the circumferential portion.

[0010] Optionally, the glue filling nozzle includes an inner convex portion, an outer convex portion and a connecting portion; wherein the inner convex portion is protruded from the inner side of the annular portion toward the glue filling groove; the outer convex portion is protruded outward from the outer side of the annular portion; the connecting portion is arranged in the annular portion and connects the inner convex portion and the outer convex portion.

[0011] Optionally, the glue pouring pad further comprises a check valve arranged in the glue pouring nozzle, wherein the check valve is adapted to allow the glue pouring tube to enter the glue pouring groove from outside to inside and prevent the colloid from flowing in the reverse direction.

[0012] Optionally, the periphery of the check valve is connected to the inner wall of the glue pouring nozzle, the middle area of ​​the check valve protrudes toward the glue pouring groove, and an opening is provided at the protruding position, and the opening divides the check valve into at least two membrane valves.

[0013] Optionally, the membrane flap has a proximal end located at the center of the check valve, and a distal end away from the proximal end, and the thickness of the membrane flap is gradually reduced from the distal end to the proximal end.

[0014] Optionally, the non-return valve is arranged at an inner convex part of the glue pouring nozzle; and / or, the non-return valve is arranged at a connecting part of the glue pouring nozzle.

[0015] The present invention also provides a motor stator, a motor including the motor stator, and an electrical device including the motor. The motor stator includes a housing, a stator assembly, and a glue-filling pad; wherein the housing includes a base and a shell cover arranged on the base, the shell cover and the base are enclosed to form a receiving cavity, and a bearing portion is arranged at the bottom of the base; the stator assembly is installed in the receiving cavity, the stator assembly includes a stator and a core shaft passing through the stator and installed on the bearing portion; the glue-filling pad is arranged on the base, and the glue-filling pad includes a pad body and a glue-filling nozzle; wherein the pad body is provided with a bearing sleeve portion for the core shaft of the stator to pass through, and a glue-filling groove surrounding the outer periphery of the bearing sleeve portion; the glue-filling nozzle penetrates the pad body to connect the glue-filling groove with a glue storage source, the bearing sleeve portion of the glue-filling pad passes through the bearing portion and is sleeved thereon, and the glue-filling nozzle of the glue-filling pad passes out of the housing.

[0016] The technical solution of the present invention is to configure a glue pad suitable for glue filling for the stator of the motor stator, the glue pad is used to be configured between the bottom of the stator of the motor stator and the base of the housing, and the glue pad is provided with a glue filling groove and a glue filling nozzle connected to the glue filling groove, so that the glue can be poured into the glue filling groove through the glue filling nozzle, so that the glue continues to fill the gap around the stator from bottom to top, and then the air in the gap is squeezed out upward. In this way, the generation of glue bubbles during the glue filling process can be effectively avoided, so that there is no need to perform vacuum treatment after glue filling, reducing the process of manufacturing the motor stator, effectively simplifying the manufacturing process, and thus shortening the manufacturing cycle and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of an embodiment of a motor stator of the present invention;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Schematic diagram of the core shaft configuration of the motor stator;

[0021] Figure 4 This is a structural schematic diagram of an embodiment of a glue-filled rubber pad of the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of another perspective of the glue pad in the middle;

[0023] Figure 6 for Figure 4 Schematic diagram of the internal structure of the glue pad;

[0024] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0025] Figure 8 for Figure 7 Schematic diagram of using a glue filling tube to penetrate the glue filling nozzle.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0030] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] During the production and assembly process of the motor stator, the stator needs to be filled with glue to fix the winding coil in the stator, and at the same time, it can insulate the winding coil and conduct the heat generated by the winding coil to the casing. The traditional method of filling glue for the motor stator is usually to gravity fill the stator with glue from the upper part of the motor stator. The glue flows downward between the stator and the base under the action of gravity. After the filling is completed, a vacuum degassing device is required to remove the bubbles in the glue. However, this method of filling glue first and then vacuuming has many defects, including: ① The vacuuming process increases the process of manufacturing the motor stator, resulting in complicated and cumbersome manufacturing processes, thereby extending the manufacturing cycle and increasing production costs; ② The glue is prone to boiling during the vacuuming process, causing the glue to splash and contaminate other parts; ③ The volume of the glue increases during the vacuuming process, and it is difficult to accurately control the actual height of the glue; ④ The glue between the base of the casing and the bottom of the stator is easy to adhere to the base. After the glue is fixed, the volume is reduced and the base is pulled, which is easy to cause deformation of the base.

[0034] See also Figure 1 In view of the above problems, the present invention provides a glue-filling pad 100, which is suitable for filling glue into the stator 221 of the motor stator 200. After the glue-filling pad 100 is filled with glue, there is no need to perform vacuum treatment, thereby solving at least one defect of the glue-filling method used in the above-mentioned traditional motor stator 200. The specific structure of the glue-filling pad 100 will be described in detail below.

[0035] See also Figures 1 to 3 In one embodiment of the glue-potting pad provided by the present invention, the glue-potting pad 100 includes a pad body 110 and a glue-potting nozzle 120; wherein the pad body 110 is provided with a bearing sleeve portion 112 through which the core shaft 222 of the stator 200 of the power supply machine passes, and a glue-potting groove 114 (such as Figure 5 The glue injection nozzle 120 penetrates the glue pad body 110 to connect the glue injection groove 114 with the glue storage source (not shown in the figure). It should be noted that the glue storage source is a glue storage device for storing glue liquid.

[0036] Specifically, the glue pad 100 is smooth and elastic; the glue pad 100 is used to be arranged between the bottom of the stator assembly 220 of the motor stator 200 and the base 211 of the housing 210, and the glue pad 100 can separate the stator assembly 220 and the base 211, so that the stator assembly 220 and the base 211 are not in direct contact. Among them, the base 211 of the motor stator 200 is provided with a bearing portion 211a for inserting the bearing of the rotor; during assembly, the glue pad 100 is installed on the base 211, and the bearing sleeve portion 112 of the glue pad 100 is used to be sleeved on the bearing portion 211a of the base 211, and the glue nozzle 120 of the glue pad 100 extends outward from the housing 210; the stator assembly 220 is arranged on the upper side of the glue pad 100, and the stator assembly 220 is formed with an inner cavity 221 connected with the bearing portion 211a of the base 211.

[0037] When pouring glue, the mandrel is inserted into the inner cavity 221 of the stator assembly 220; then the glue pouring tube 300 is used to connect the glue pouring nozzle 120 of the glue pouring pad 100 with the external glue storage source, so that the glue liquid is poured into the glue pouring groove 114 through the glue pouring nozzle 120 of the glue pouring pad 100 through the glue pouring tube 300; after the glue liquid fills the glue pouring groove 114, the glue liquid continues to fill the gaps at the bottom and around the stator 221 from bottom to top under the action of hydraulic pressure, and in the process of filling the gaps, the glue liquid expels the air in the gaps upward. In this way, the generation of glue bubbles during the glue pouring process can be effectively avoided, so that there is no need to perform vacuum treatment after the glue pouring. After the glue pouring is completed, the mandrel 400 is pulled out of the inner cavity 221 of the stator assembly 220, so that the inner cavity 221 forms a cavity for installing the rotor of the power supply machine.

[0038] Therefore, it can be seen from the above-mentioned method of using the glue potting pad 100 to pot the stator 221 of the motor stator 200 that since there is no need to perform vacuum treatment after potting, various technical effects can be achieved: ① The process of manufacturing the motor stator 200 is reduced, the manufacturing process is effectively simplified, and the manufacturing cycle and production costs are shortened; ② It is not easy for the glue to splash due to boiling of the glue, thereby reducing the contamination of other components by the glue; ③ The volume of the glue is relatively under atmospheric pressure, the volume change of the glue is small, and it is easier to accurately control the actual height of the glue; ④ The base 211 of the casing 210 and the bottom of the stator 221 are separated by the glue potting pad 100, and the glue on the glue potting pad 100 is not easy to contact the base 211, so that the base 211 is not easy to be pulled during the glue fixing process, which effectively reduces the influence of the glue on the base 211 and improves the structural stability of the base 211.

[0039] The technical solution of the present invention is to configure a glue pad 100 suitable for glue filling for the stator 221 of the motor stator 200. The glue pad 100 is used to be configured between the bottom of the stator 221 of the motor stator 200 and the base 211 of the housing 210. The glue pad 100 is provided with a glue filling groove 114 and a glue filling nozzle 120 connected to the glue filling groove 114, so that the glue can be poured into the glue filling groove 114 through the glue filling nozzle 120, so that the glue continues to fill the gap around the stator 221 from bottom to top, and then the air in the gap is squeezed out upward. In this way, the generation of glue bubbles during the glue filling process can be effectively avoided, so that there is no need to perform vacuum treatment after glue filling, which reduces the process of manufacturing the motor stator 200, effectively simplifies the manufacturing process, and thus shortens the manufacturing cycle and reduces the production cost (please refer to the above description for details).

[0040] See also Figures 4 to 6In one embodiment, the rubber pad body 110 includes a base 111 and a circumferential portion 113 arranged along the circumference of the base 111; wherein the base 111 is provided with a bearing sleeve portion 112; a glue pouring groove 114 is formed between the circumferential portion 113 and the bearing sleeve portion 112; a glue pouring nozzle 120 passes through the circumferential portion 113 to connect the glue pouring groove 114 and the glue storage source.

[0041] Specifically, the glue pouring groove 114 is formed between the bearing sleeve portion 112 and the circumferential portion 113 of the rubber pad body 110; the glue pouring nozzle 120 is arranged on the circumferential portion 113, so that the glue can be poured from the side of the rubber pad body 110 to increase the resistance of the output glue to flow back to the glue pouring nozzle 120, thereby preventing the glue from flowing back. During the glue pouring process, the glue first fills the glue pouring groove 114, and then fills the gap upward. Of course, in other embodiments, the glue pouring nozzle 120 can also be arranged to penetrate the base 111.

[0042] It is considered that since the glue pouring groove 114 has a large volume and contains a lot of air, it takes a while to fill the glue pouring groove 114; during this process, the glue pouring nozzle 120 is exposed to the air in the glue pouring groove 114, and bubbles may be formed if the glue is sprayed out from the glue pouring nozzle 120 at high pressure. In view of this, in order to solve this problem, the glue pouring groove 114 is divided into a plurality of sub-glue grooves 114a along its circumferential direction, and any of the sub-glue grooves 114a is connected to the glue pouring nozzle 120.

[0043] Compared with the glue pouring groove 114, the volume of the sub-glue groove 114a is relatively small, and the time required to fill the sub-glue groove 114a is relatively short. Therefore, when pouring glue, the glue flowing out of the glue pouring nozzle 120 first enters the sub-glue groove 114a connected thereto, and quickly fills the sub-glue groove 114a in a relatively short time, so that the glue liquid level of the sub-glue groove 114a immerses the glue pouring nozzle 120, thereby preventing the glue pouring nozzle 120 from being exposed to the air, and further preventing the glue sprayed by the glue pouring nozzle 120 from forming bubbles. Finally, after the sub-glue groove 114a connected to the glue pouring nozzle 120 is filled with glue, the glue in the sub-glue groove 114a overflows to both sides thereof into other sub-glue grooves 114a until all sub-glue grooves 114a are filled.

[0044] If the glue in the entire glue-filling groove 114 without division will solidify into a larger annular solid glue, the overall stress of the annular solid glue will be relatively concentrated, and the pulling force during the glue-filling fixation will be relatively concentrated, so that it is easy to be damaged. Relatively speaking, after the entire glue-filling groove 114 is divided into a plurality of sub-glue grooves 114a in this embodiment, the glue in the plurality of sub-glue grooves 114a will solidify into a plurality of smaller solid glue blocks, and the stress of each solid glue block is relatively small, which is equivalent to dispersing the stress of the original annular solid glue on each solid glue block, so that each solid glue block is not easy to be damaged under the pulling force, thereby ensuring the stability of the glue after solidification.

[0045] As for dividing the glue pouring groove 114 into a plurality of sub-glue grooves 114a along its circumferential direction, optionally, at least two dividing ribs 115 are provided in the glue pouring groove 114, and the at least two dividing ribs 115 are both connected to the circumferential portion 113 and the bearing sleeve portion 112, so as to divide the glue pouring groove 114 into at least two sub-glue grooves 114a.

[0046] Specifically, there are multiple separating ribs 115, which are arranged at intervals along the circumferential direction of the glue pouring groove 114, so as to divide the glue pouring groove 114 into multiple sub-glue grooves 114a arranged along the circumferential direction thereof, wherein any sub-glue groove 114a is connected to the glue pouring nozzle 120. The multiple separating ribs 115 are integrally formed with the bottom support 111, the bearing sleeve portion 112 and the circumferential portion 113 of the rubber pad body 110. The multiple separating ribs 115 increase the area in contact with the glue liquid, thereby increasing the adhesion area and effectively improving the sealing effect.

[0047] See also Figures 6 to 8 , Figure 8 h1 represents the height of the separating rib 115 relative to the upper surface of the base 111; h2 represents the height of the upper edge of the outlet end of the glue injection nozzle 120 relative to the upper surface of the base 111; h3 represents the height of the circumferential portion 113 relative to the upper surface of the base 111. In this embodiment, in order to ensure that the liquid level of the glue filled in the sub-glue groove 114a submerges the glue injection nozzle 120, the height of the separating rib 115 relative to the upper surface of the base 111 is optionally designed to be greater than the height of the upper edge of the outlet end of the glue injection nozzle 120 relative to the upper surface of the base 111, that is, h1>h2. Such a design can ensure that the depth of the sub-glue groove 114a formed between the two dividing ribs 115 is greater than the height of the upper edge of the outlet end of the glue filling nozzle 120, so that when the glue fills the sub-glue groove 114a, the glue will naturally submerge the outlet end of the glue filling nozzle 120, thereby preventing the glue filling nozzle 120 from contacting the air, and effectively preventing the glue sprayed by the glue filling nozzle 120 with high pressure from forming bubbles.

[0048] Furthermore, the height of the separating rib 115 protruding from the upper surface of the base 111 is less than the height of any one of the bearing sleeve portion 112 and the circumferential portion 113. Here, the heights of the bearing sleeve portion 112 and the circumferential portion 113 are the same, that is, h3>h1. With this design, the depth of the sub-glue groove 114a formed between the two separating ribs 115 can be less than the overall depth of the glue pouring groove 114. During the glue pouring process, the glue first fills all the sub-glue grooves 114a, and then continues to fill the glue pouring groove 114 upwards, and then fills the circumference of the stator 221 upwards.

[0049] Based on any of the above embodiments, the glue filling nozzle 120 includes an inner convex portion 121, an outer convex portion 122 and a connecting portion 123; wherein the inner convex portion 121 is protruded from the inner side of the annular portion 113 toward the glue filling groove 114; the outer convex portion 122 is protruded outward from the outer side of the annular portion 113; the connecting portion 123 is arranged in the annular portion 113, and connects the inner convex portion 121 and the outer convex portion 122.

[0050] Specifically, the outer protrusion 122 of the glue filling nozzle 120 is protruded outward from the outer side of the annular portion 113 so as to be suitable for extending outward from the housing 210 of the motor stator 200, thereby guiding the glue filling tube 300 to be inserted into the glue filling nozzle 120; the inner protrusion 121 of the glue filling nozzle 120 is protruded from the inner side of the annular portion 113 toward the glue filling groove 114, so as to be suitable for guiding the glue liquid to flow directly into the glue filling groove 114, avoiding the glue liquid from adhering to the inner side of the annular portion 113 and slowing down the flow rate, thereby ensuring that the glue liquid quickly fills the glue filling groove 114.

[0051] In addition, the inner diameter of the glue filling nozzle 120 can remain consistent from the outside to the inside; of course, the inner diameter of the glue filling nozzle 120 can be set to gradually decrease from the outside to the inside, which can increase the resistance to the backflow of the glue and reduce the glue in the glue filling groove 114 from flowing back out of the glue filling nozzle 120.

[0052] Based on any of the above embodiments, in order to reduce the occurrence of glue backflow, the glue pad 100 further includes a check valve 130 disposed in the glue nozzle 120. The check valve 130 is suitable for allowing the glue cylinder 300 to enter the glue tank 114 from the outside to the inside and prevent the colloid from flowing in reverse. That is, after the glue cylinder 300 is drawn out, the check valve 130 can seal the glue nozzle 120 to enhance the sealing performance of the glue nozzle 120.

[0053] As for the specific installation position of the check valve 130, optionally, the check valve 130 is arranged at the inner convex mouth of the glue filling nozzle 120; and / or, the check valve 130 is arranged at the connecting portion 123 or the outer convex portion 122 of the glue filling nozzle 120. For example, when the check valve 130 is arranged at the connecting portion 123 or the outer convex portion 122 of the glue filling nozzle 120, after the glue filling is completed, a small part of the glue liquid in the glue filling groove 114 will enter between the outlet end of the glue filling nozzle 120 and the check valve 130, and the solid glue formed by this part of the glue liquid after solidification can act as a glue plug, which will adhere to the inner wall of the glue filling nozzle 120, thereby enhancing the sealing performance of the glue filling nozzle 120.

[0054] Here, it is considered that if the above-mentioned method of setting the check valve 130 at the connecting part 123 or the outer convex part 122 of the glue filling nozzle 120 is adopted, after the glue filling is completed, a small part of the glue in the glue filling groove 114 will enter the glue filling nozzle 120, and this part of the glue may cause the glue liquid level around the stator 221 of the motor stator 200 to change, thereby causing a large error between the actual height of the glue liquid level and the measured height. In view of this, the check valve 130 can be optionally set at the inner convex nozzle of the glue filling nozzle 120. Such a design can reduce the glue in the glue filling groove 114 from entering the glue filling nozzle 120, so that the height of the glue in the motor stator 200 will not change significantly, thereby avoiding a large error between the actual height of the glue liquid level and the measured height.

[0055] As for the specific structure of the check valve 130, there are many design methods. In this embodiment, the periphery of the check valve 130 is connected to the inner wall of the glue injection nozzle 120, the middle area of ​​the check valve 130 protrudes toward the glue injection groove 114, and an opening 131 is opened at the protruding position, and the opening 131 divides the check valve 130 into at least two membrane flaps 132. The opening 131 can be a straight opening 131 or a cross-shaped opening 131.

[0056] Specifically, in the initial state of the check valve 130, the membrane flap 132 of the check valve 130 is in a closed state closing the opening 131. When pouring glue, an external force is applied to force the glue pouring cylinder 300 to pass through the opening 131 of the check valve 130 from the outside to the inside, forcing the membrane flap 132 of the check valve 130 to expand inward; at this time, the glue pouring cylinder 300 can inject glue into the glue pouring groove 114; after the glue pouring is completed, the glue pouring cylinder 300 is reversely withdrawn, and the glue pouring cylinder 300 drives the membrane flap 132 of the check valve 130 to return to the original closed state outward, so that the glue in the glue pouring groove 114 is difficult to pass through the check valve 130 and flow back in reverse.

[0057] Furthermore, the membrane flap 132 has a proximal end 132a located at the center of the check valve 130, and a distal end 132b away from the proximal end 132a, and the thickness of the membrane flap 132 is gradually reduced from the distal end 132b to the proximal end 132a. Since the thickness of the distal end 132b of the membrane flap 132 is relatively large, the strength of the distal end 132b of the membrane flap 132 is relatively large, so that the distal end 132b of the membrane flap 132 is more firmly connected to the inner wall of the glue injection nozzle 120. The proximal end 132a of the membrane flap 132 is relatively small in thickness and is more likely to deform, which is conducive to the glue injection tube 300 penetrating the opening 131 of the check valve 130.

[0058] Of course, the structure of the check valve 130 is not limited to the above-mentioned design. In other embodiments, the check valve 130 can also be a multi-layer petal membrane type check valve 130, which includes a cylinder and a multi-layer soft membrane arranged at one of the open ends of the cylinder; each layer of the soft membrane includes at least two leaves that can be opened and closed independently, and the bottom of each leaf is gathered toward the center. Each layer of leaves is closed to form a closed tip, which plays a role in guiding the glue filling tube 300 to penetrate the glue filling groove 114. In addition, in another embodiment of the check valve 130, the check valve 130 is configured as a ring as a whole, and the check valve 130 is provided with an opening 131 in the central area thereof, and the opening 131 is a normally closed circular hole, and the opening 131 is opened by the glue filling tube 300 pushing inward, and returns to a closed state after the glue filling tube 300 is withdrawn.

[0059] The present invention also provides a motor stator 200, which includes a housing 210, a stator assembly 220 and a glue-filling pad 100. The housing 210 includes a base 211 and a shell cover 212 arranged on the base 211, the shell cover 212 and the base 211 are enclosed to form a receiving cavity, and a bearing portion 211 is arranged at the bottom of the base 211; the stator assembly 220 is installed in the receiving cavity; and the glue-filling pad 100 is arranged at the bottom of the receiving cavity. The specific structure of the glue-filling pad 100 refers to the above embodiment. The bearing sleeve portion 112 of the glue-filling pad 100 is sleeved on the bearing portion 211a, and the glue-filling nozzle 120 of the glue-filling pad 100 passes through the outside of the housing 210. Since the motor stator 200 adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0060] Specifically, the base 211 of the motor stator 200 is provided with a bearing portion 211a for inserting the bearing of the rotor. The glue pad 100 is installed on the base 211, and the bearing sleeve portion 112 of the glue pad 100 is sleeved on the bearing portion 211a of the base 211, and the glue nozzle 120 of the glue pad 100 extends outward from the housing 210. The stator assembly 220 is arranged on the upper side of the glue pad 100, and an inner cavity 221 connected with the bearing portion 211a of the base 211 is formed inside the stator assembly 220.

[0061] The shape of the glue pad 100 fits the base 211 of the housing 210. When glue is poured, the core shaft 400 is inserted into the inner cavity 221 of the stator assembly 220; then, the glue nozzle 120 of the glue pad 100 is connected to the external glue storage source by the glue cylinder 300, so that the glue liquid is poured into the glue pouring groove 114 through the glue nozzle 120 of the glue pad 100 through the glue pouring cylinder 300; after the glue liquid fills the glue pouring groove 114, the glue liquid continues to fill the gap around the stator 221 from bottom to top under the action of hydraulic pressure, and in the process of filling the gap, the glue liquid pushes the air in the gap upward. After the glue pouring is completed, the core shaft 400 is pulled out of the inner cavity 221 of the stator assembly 220, and then the rotor of the motor is installed in the inner cavity 221, so as to assemble and form the motor.

[0062] This can effectively avoid glue bubbles during the glue pouring process, so there is no need to perform vacuuming after glue pouring, and various defects caused by vacuuming can be avoided (see the above introduction for details, which will not be repeated here). Since the glue pouring pad 100 separates the stator 221 and the base 211, it is not easy for the base 211 to directly contact the glue, so that during the glue pouring process, the glue is not easy to adhere to the base 211, and the glue will not pull the base 211 during the fixing process, which effectively reduces the impact of the glue on the base 211 and improves the structural stability of the base 211.

[0063] The present invention also provides a motor, the motor comprising a rotor and a motor stator 200, the rotor being mounted in an inner cavity 221 of a stator assembly 220 of the motor stator 200 and being movably connected to the stator assembly 220. The specific structure of the motor stator 200 refers to the above embodiment. Since the motor adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0064] The present invention also provides an electrical device, the electrical device comprising an electrical body and a motor, the motor being arranged on the electrical body. The specific structure of the motor refers to the above embodiment. Since the present motor adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0065] Optionally, the electrical equipment may be an air conditioner, a fan (such as a centrifugal fan or an axial flow fan), a range hood, or other equipment that requires a drive device. The motor is used as a drive device in the electrical equipment to drive the fan blades to rotate and drive the air flow; or, the motor may also be used to drive the movement of components, such as driving the movement of wind deflectors, shutters, doors, swing arms, and other components.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A glue-filling pad, which is suitable for glue-filling a motor stator, characterized in that: The glue-filled pad comprises: A rubber pad body, wherein the rubber pad body is provided with a bearing sleeve portion and a glue pouring groove surrounding the outer periphery of the bearing sleeve portion; the rubber pad body comprises a base and a peripheral portion provided along the periphery of the base, the base is provided with the bearing sleeve portion, and the glue pouring groove is formed between the peripheral portion and the bearing sleeve portion; and A glue pouring nozzle, which passes through the circumferential portion to connect the glue pouring groove and the glue storage source; at least two dividing ribs are arranged in the glue pouring groove to divide the glue pouring groove into at least two sub-glue grooves along its circumferential direction, any one of which is connected to the glue pouring nozzle.

2. The glue-filled pad according to claim 1, characterized in that: The at least two separation ribs each connect the circumferential portion and the bearing sleeve portion.

3. The glue-filled pad according to claim 1, characterized in that: The height of the separation rib protruding relative to the upper surface of the base is greater than the height of the outlet end of the glue injection nozzle.

4. The glue-filled pad according to claim 3, characterized in that: The height of the separation rib protruding relative to the upper surface of the base is smaller than the height of any one of the bearing sleeve portion and the circumferential portion.

5. The glue-filled rubber pad according to any one of claims 1 to 4, characterized in that: The glue filling nozzle comprises: An inner convex portion, the inner convex portion is convexly arranged from the inner side surface of the circumferential portion toward the inside of the glue pouring groove; An outer convex portion, the outer convex portion is provided to protrude outward from the outer side of the circumferential portion; and A connecting portion is provided in the circumferential portion and connects the inner convex portion and the outer convex portion.

6. The glue-filled rubber pad according to any one of claims 1 to 4, characterized in that: The glue pouring pad also includes a check valve arranged in the glue pouring nozzle, and the check valve is suitable for allowing the glue pouring tube to enter the glue pouring groove from the outside to the inside and preventing the colloid from flowing in the reverse direction.

7. The glue-filled pad according to claim 6, characterized in that: The periphery of the check valve is connected to the inner wall of the glue pouring nozzle, the middle area of ​​the check valve protrudes toward the glue pouring groove, and an opening is opened at the protruding position, and the opening divides the check valve into at least two membrane valves.

8. The glue-filled pad according to claim 7, characterized in that: The membrane flap has a proximal end located at the center of the check valve and a distal end away from the proximal end. The thickness of the membrane flap is gradually reduced from the distal end to the proximal end.

9. The glue-filled pad according to claim 6, characterized in that: The glue pouring nozzle comprises an inner convex portion, an outer convex portion and a connecting portion, wherein the inner convex portion is convexly arranged from the inner side of the circumferential portion toward the inside of the glue pouring groove, and the outer convex portion is convexly arranged from the outer side of the circumferential portion toward the outside, and the connecting portion is arranged in the circumferential portion and connects the inner convex portion with the outer convex portion; the check valve is arranged at the inner convex portion of the glue pouring nozzle; and / or, The non-return valve is arranged at the connecting part of the glue filling nozzle.

10. A motor stator, characterized in that: The motor stator comprises: A housing, the housing comprising a base and a shell cover arranged on the base, the shell cover and the base enclose a receiving cavity; wherein a bearing portion is arranged at the bottom of the base; a stator assembly, the stator assembly being installed in the accommodating cavity; and The glue-potting pad according to any one of claims 1 to 9, wherein the glue-potting pad is arranged on the base, the bearing sleeve portion of the glue-potting pad is sleeved on the bearing portion, and the glue-potting nozzle of the glue-potting pad passes through the outside of the casing.

11. A motor, characterized in that: The motor comprises: a rotor; and The motor stator as claimed in claim 10; The rotor is installed inside the stator assembly of the motor stator, and the bearing of the rotor is inserted into the bearing part of the motor stator.

12. An electrical device, characterized in that: The electrical equipment includes: The electrical appliance itself; and The motor according to claim 11, wherein the motor is arranged on the electrical appliance body.

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