Filling and sealing tool for disc type motor stator

Abstract

The utility model discloses an encapsulation tool for a disc type motor stator. The encapsulation tool is used for carrying out epoxy encapsulation on the stator of a motor. The stator potting tool comprises a packaging body which is detachably and fixedly connected with a flange plate on a motor, and the packaging body and the flange plate are matched to form a containing space for a stator to be installed in a limited mode; the packaging body is provided with at least two potting channels, a through hole and an inner concave part. Inlets of the two potting channels are formed in the peripheral wall of the packaging body, and outlets of the two potting channels communicate with the containing space in the radial direction and the axial direction of the packaging body. The through hole is formed in the center of the packaging body and is used for installing the core column in a sealing manner; the inner concave part is formed in the second filling chamber; one end of the core column penetrates through the through hole and the stator and is in sealing fit with the flange plate, and the other end of the core column is connected with the packaging body; the stator filling and sealing tool provided by the utility model solves the problems of large filling and sealing difficulty, high cost, different quality and low flatness of the filled and sealed end face of the stator of the existing motor.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a stator potting tool for a disc-type motor. Background Art

[0002] Disc motors are divided into single disc, double disc and multi-disc disc motors, among which double disc motors are divided into double stator intermediate rotor and double rotor intermediate stator structures. Disc motors have the advantages of small size, light weight and high efficiency, but at the same time they have the disadvantages of high process requirements and difficult manufacturing.

[0003] However, in the existing disc motor, in order to reduce the wind noise generated by the rotor when it rotates at high speed, the rotor is sealed with epoxy potting, which not only provides good protection for the rotor, but also improves the thermal conductivity; but the stator in the motor is difficult to achieve epoxy potting for the following reasons: interference with the external wiring on the stator, cooperation with the internal structural parts between the flange (such as the patent application number: 202322194278.4, the patent name: air gap adjustment structure of disc motor, which has a structure for adjusting the air gap), etc., it is necessary to avoid the above structure and form a space for the installation of the internal structure, which hinders the realization of stator epoxy potting. Although some motor manufacturers force the stator to be potted, the accuracy after potting is insufficient, the cost is high, and the entire process is complex, and mass production cannot be achieved; the phenomenon of sweeping the chamber when the stator and the rotor cooperate often occurs, which is prone to failure, and due to the lack of accuracy, the thermal conductivity is reduced, which affects the overall service life of the motor;

[0004] Therefore, there is an urgent need for a potting tool that can meet the requirements of low cost, high precision, and suitable for mass production. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a stator potting tool for a disc motor, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problems of the stator potting of existing motors, such as high difficulty, high cost, uneven quality and low flatness of the rear end surface after potting.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A stator potting tool for a disc motor, which is used to perform epoxy potting on the stator of the motor; the stator potting tool comprises:

[0008] The packaging body is detachably fixedly connected to the flange on the motor, and the two cooperate to form a accommodating space for the stator to be limitedly loaded; the stator is located in the accommodating space, and the accommodating space is divided into a first filling chamber and a second filling chamber;

[0009] The package body is provided with at least two encapsulation channels, a through hole and an inner concave portion; the inlets of the two encapsulation channels are respectively provided on the outer peripheral wall of the package body, and the outlets of the two encapsulation channels are respectively connected to the accommodating space along the radial direction and the axial direction of the package body, and the corresponding radial outlet is connected to the first filling chamber, and the axial outlet is connected to the second filling chamber; the through hole is provided at the center of the package body; and the inner concave portion is formed in the second filling chamber;

[0010] The core column passes through the through hole and the stator and is sealed with the two. The two ends of the core column are respectively sealed and connected with the packaging body and the flange on the motor.

[0011] Furthermore, it also includes a plurality of stoppers arranged at intervals around the through hole; each of the stoppers is detachably fixed to the flange and fits tightly with the circumference of the core column so that it can be radially withdrawn from the through hole after potting.

[0012] Furthermore, it also includes an assembly limiting structure, which includes a locking piece and a limiting column. The locking piece passes through the flange and is connected to the stopper so that the end face of the stopper is sealed and fits against the flange. The limiting column is fixed to the flange and is adapted to the arc surface on the stopper so that the stopper abuts against the core column and limits the circumferential and radial displacement of the stopper.

[0013] Furthermore, the core column is a stepped column, which includes a first step portion, a second step portion and a third step portion that are connected together as one. The first step portion has an outer diameter smaller than the second step portion and is used for sealing and assembling with a matching hole opened on the flange; the second step portion is penetrated through the center of the stator and the through hole; the third step portion is located on the outer end surface of the packaging body and is used for screwing with the packaging body.

[0014] Furthermore, the matching hole on the flange plate on which the stopper is mounted is a through hole and is connected to the through hole.

[0015] Furthermore, it also includes a sealing ring, which is sleeved on either the flange or the packaging body and is correspondingly installed on the outer peripheral wall; wherein the packaging body and the flange are aligned and assembled to form a circumferential seal between the two.

[0016] Furthermore, the flange, the packaging body and the stem are sealed and assembled, and the inlets of the two encapsulation channels are both arranged upward.

[0017] Furthermore, the packaging body, the core column and the stopper are respectively made of Teflon material.

[0018] From the above description of the utility model, it can be seen that compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) The utility model provides a stator potting tool for a disc-type motor, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problems of the existing motor stator potting difficulty, high cost, uneven quality and low flatness of the rear end surface after potting; the stator potting tool described in the utility model pots the stator through the cooperation of the flange and the packaging body, so that the stator is directly fixed on the flange of the motor after packaging, so that the subsequent assembly of the motor does not need to adjust the position between the stator and the flange after packaging, which is one; secondly, the difficulty of the entire potting production is greatly reduced, the sealing of the packaging body and the flange is matched, a potting channel is opened on the outer peripheral wall of the packaging body, and the outlets of the potting channel are opened in the radial direction and the axial direction respectively, which makes the stator The wiring arrangement is easier to lay, and a potting channel can be set radially to lead out. In addition, the epoxy glue is directly poured radially into the first filling chamber (i.e. the position between the flange and the stator) so that the interior can be quickly filled, while the axial pouring is adopted in the second filling chamber (i.e. the position between the stator and the packaging body). This is the side opposite to the rotor, and the potting thickness is more uniform. An inner recess is set on the packaging body, so that after filling, a certain gap is maintained between the magnetic steel on the rotor and the stator to avoid the occurrence of chamber sweeping. In addition, the two potting channels play a relative exhaust role, effectively reducing the trapped air situation and ensuring the potting filling rate. The stator potting tooling described in the present invention greatly reduces the difficulty, and the end face flatness after potting is high, which is suitable for mass production.

[0020] (2) The present invention is also provided with a plurality of blocks, through which a space is formed at the position of the corresponding block after the first filling chamber is filled, so as to facilitate the installation of an air gap adjustment structure when the motor is assembled. The block is tightly fitted with the circumference of the core column (that is, one end of the block is matched with the core column), so that it is convenient to withdraw the sealed block from the through hole position; such a design can realize the block position molding and the block can be pulled out, and the structural design is exquisite and easy to implement.

[0021] (3) The novel invention limits the radial and axial movement of the stopper by means of the locking piece and the limit column of the limit structure, thereby ensuring that there is no interference during the subsequent withdrawal, and the stopper can be easily withdrawn from the first filling chamber, and ensuring that the air gap adjustment structure can be accurately aligned during the subsequent assembly.

[0022] (4) The matching hole on the flange plate on which the stopper is installed is a through hole and is connected to the through hole; the new type can realize the potting of any stator in the double-stator disc motor and has wider applicability.

[0023] (5) The present invention is also provided with a sealing ring, which is sleeved on the outer peripheral wall of the flange or the packaging body, so that the two are sleeved and assembled, the axial sealing effect is better, and leakage is less likely to occur during the potting process.

[0024] (6) The inlet of the potting channel is arranged upwards in the present invention, so that during the potting process, the epoxy glue flows from top to bottom without injecting excessive pressure. In this way, the air inside can be easily discharged in sufficient time to avoid the situation of incomplete filling due to trapped air.

[0025] (7) The package body, core column and stopper described in the present invention are respectively made of Teflon material. The good anti-sticking property of Teflon material enables the core column, stopper, etc. to be smoothly separated from the epoxy glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the three-dimensional exploded structure of the potting tooling of the utility model;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the potting tooling of the utility model;

[0029] Figure 3 It is a cross-sectional view of the potting tooling of the utility model;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the packaging body of the utility model;

[0031] Figure 5 It is a three-dimensional structural schematic diagram of the core column of the utility model. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0034] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0035] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0036] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0037] See also Figure 1-4 The stator potting tool for a disc motor described in the present invention is used for epoxy potting of the stator of the motor; it should be noted that the stator potting tool of the present invention can be used for potting the stator 5 of a single disc motor, and can also be used for potting the stator 5 of a double disc motor, and has a wider applicability;

[0038] The stator potting tool comprises: a packaging body 1 and a core column 2;

[0039] The packaging body 1 is detachably fixedly connected to the flange 2 on the motor, and the two cooperate to form a receiving space 3 for the stator 5 to be limitedly loaded; the stator 5 is located in the receiving space 3, and the receiving space 3 is divided into a first filling chamber 31 and a second filling chamber 32;

[0040] It should be noted that the flange 2 is divided into a front flange 2A and a rear flange 2B of the motor. The front flange 2A needs to allow the motor center axis to pass through, so a through hole 21 (i.e., a matching hole) needs to be opened; while the rear flange 2B does not need such a design;

[0041] The package body 1 is provided with at least two encapsulation channels 11, 12, a through hole 13 and an inner concave portion 14;

[0042] The inlets 111 and 121 of the two encapsulation channels 11 and 12 are respectively opened on the outer peripheral wall of the package body 1, and the outlets 112 and 122 of the two encapsulation channels 11 and 12 are respectively connected to the accommodating space 3 in the radial direction and the axial direction of the package body 1, and the corresponding radial outlet 112 is connected to the first filling chamber 31, and the axial outlet 122 is connected to the second filling chamber 32;

[0043] The through hole 13 is opened at the center of the package body 1 and is used for sealing and mounting the core column 4;

[0044] The inner concave portion 14 is formed in the second filling chamber 32. This configuration enables the inner concave portion 14 to be filled during potting, even if the potting glue abuts against the surface of the iron core on the stator 5, thereby preventing the chamber from being swept when mating with the rotor.

[0045] The core column 4 passes through the through hole 13 and the stator 5 and is sealed with the two; and the two ends of the core column 4 are sealed and connected to the packaging body 1 and the flange 2 on the motor respectively; it should be noted that the core column 4 in the present invention is a stepped column (such as Figure 5 As shown in the figure, it includes a first step portion 41, a second step portion 42 and a third step portion 43 which are connected as one body. The first step portion 41 has an outer diameter smaller than that of the second step portion 42 and is used for sealing and assembling with the matching hole 21 provided on the flange 2; the second step portion 42 is penetrated through the center of the stator 5 and the through hole 13; the third step portion 43 is located on the outer end surface of the packaging body 1 and is used for screwing with the packaging body 1.

[0046] More specifically, when the stator 5 is installed at the front flange 2A and potted, a through matching hole 21 is opened in the center of the flange 2; in addition, a plurality of stoppers 6 are installed in the first filling chamber 31 for the subsequent installation of the air gap adjustment structure;

[0047] That is, the potting tooling of the present invention also includes a plurality of blocks 6, which are arranged at intervals around the through hole 13; each of the blocks 13 is detachably fixed to the flange 2 and fits tightly with the circumferential surface of the core column 4 so that it can be radially withdrawn from the through hole 13 after potting; wherein each of the blocks 6 is detachably fixed to the flange 2 by means of a mounting limit structure 7.

[0048] The assembly limiting structure 7 includes a locking piece 71 and a limiting column 72. The locking piece 71 passes through the flange 2 and is connected to the stopper 6 so that the end face of the stopper 6 is sealed and fits against the flange 2. The limiting column 72 is fixed to the flange 2, and the arc surface 60 on the stopper 6 is adapted to make the stopper 6 abut against the core column 4 and limit the circumferential and radial displacement of the stopper 6.

[0049] More specifically, it also includes a sealing ring 8, which is sleeved on either the flange 2 or the packaging body 1 and is correspondingly installed on the outer peripheral wall; wherein the packaging body 1 and the flange 2 are aligned and assembled to form a circumferential seal between the two.

[0050] More specifically, the packaging body 1 , the core column 4 and the stopper 6 are respectively made of Teflon material.

[0051] For specific implementation, see Figure 1-4 The present invention is illustrated by taking a potting tool for a disc motor stator with a potting front flange as an example, which mainly includes the following parts: a packaging body 1, potting channels 11, 12, inlets 111, 121, outlets 112, 122, a through hole 13, an inner recess 14, a front flange 2A, a matching hole 21, an accommodating space 3, a first filling chamber 31, a second filling chamber 32, a core column 4, a first step portion 41, a second step portion 42, a third step portion 43, a stator 5, a stopper 6, a locking piece 71, a limiting column 72, and a sealing ring 8;

[0052] Actual assembly and potting process,

[0053] (1) A packaging body 1, a core column 4 and a plurality of stoppers 6 made of Teflon material are used. In this embodiment, three stoppers 6 are used as an example;

[0054] (2) Prepare an aluminum front flange 2A. In this embodiment, a concave cavity 20 is formed on the side of the front flange 2A facing the packaging body 1. A docking portion 22 is formed at the edge of the concave cavity 20 for correspondingly buckling the packaging body 1. The sealing ring 8 is installed on the outer peripheral wall of the docking portion 22 so that the two form a circumferential seal.

[0055] (3) During assembly, firstly screw and lock the stopper column 72 into the concave cavity 20 of the front flange 2A, in which a threaded hole has been pre-opened; then, the arc surface 60 of the stopper 6 is pressed against the stopper column 72; the locking piece 71 is taken out and inserted inward from the outer end surface of the front flange 2A to lock the stopper 6 into the front flange 2A; it should be noted that the side of the stopper 6 facing the matching hole 21 is a curved surface 61 for matching with the core column 4;

[0056] (4) The stator 5 is installed in the concave cavity 20 accordingly, and the stator 5 is coaxially arranged with the matching hole 21;

[0057] (5) The packaging body 1 having two encapsulation channels 11, 12, a through hole 13 and an inner recess 14 is aligned and buckled with the front flange 2A, and the two are pre-locked by screws. Then, the stepped stem 4 is passed from the outside of the packaging body 1 to the inside, so that the first step 41 of the stem 4 is sealed with the matching hole 21 of the front flange 2A. Of course, interference fit is also acceptable. At this time, the second step 42 acts on the curved surface 61 of each stopper 6. Finally, the third step 43 is fixed to the outer end surface of the packaging body 1 by screws 9 to realize the assembly of the stem 4 and the packaging body 1.

[0058] (6) The front flange 2A and the packaging body 1 are fastened with pre-locking screws so that the stator 5 is located in the accommodating space 3 and a first filling chamber 31 and a second filling chamber 32 are formed;

[0059] When filling glue,

[0060] (1) First, the entire potting tool is erected, and the inlets 111 and 121 of the two potting channels 11 and 12 are arranged upward;

[0061] (2) Epoxy glue is poured into the potting channel 11 connected to the first filling chamber 31. The epoxy glue flows into the first filling chamber 31 from the radial outlet 112 and is injected from top to bottom. The internal air can be discharged from another potting channel 12 first. After the first filling chamber 31 is filled, it is injected from another potting channel 12. At this time, although the inlet 121 of the potting channel 12 also flows in radially, the outlet 122 is perpendicular to the end face of the stator 5 (i.e., the axial outlet 122). When the epoxy glue is injected, it is poured into the second filling chamber 32 and the inner concave portion 14 along the axial direction. It should be noted here that the electrical wires on the stator 5 can be led out from the inlet 111 of the potting channel 11, so that the electrical wires are fixed and no interference will occur.

[0062] (3) After the filling is completed and the mold is cooled, the screws 9 of the third step 43 of the core column 4 are first removed. Since the core column 4 is made of Teflon material, it is easy to remove the core column 4. If the combination is very tight, it can be easily removed by appropriate heating. Then, the screws on the front flange 2A and the packaging body 1 are removed, and the front flange 2A is separated from the packaging body 1. In this way, a front flange 2A that encapsulates the stator 5 can be obtained;

[0063] (4) Unlock the locking piece 71 fixed to the outer end of the front flange 2A and used to lock the stopper 6. After releasing it, each stopper 6 is radially withdrawn from the first filling chamber 31. Since it is in contact with the stem 4, the space formed during potting is not potted, so it can be smoothly displaced radially along the direction of the center hole and withdrawn;

[0064] In this way, a motor stator 5 directly mounted on the flange 2 and sealed can be obtained;

[0065] The rear flange 2B is potted in the same manner, but the rear flange 2B is simpler because it does not need to be provided with the stopper 6, and the potting efficiency is higher.

[0066] The utility model provides a stator potting tool for a disc-type motor, which has a simple structure, is easy to manufacture, easy to implement and has low cost, and solves the problems of great difficulty, high cost, uneven quality and low flatness of the surface after potting in the existing motor stator potting; the stator potting tool described in the present invention packages the stator through the cooperation of the flange and the packaging body, so that the stator is directly fixed on the flange of the motor after packaging, so that the subsequent assembly of the motor does not need to adjust the position between the stator and the flange after packaging, which is one; secondly, the difficulty of the entire potting production is greatly reduced, the sealing of the packaging body and the flange is matched, a potting channel is opened on the outer peripheral wall of the packaging body, and the outlets of the potting channel are opened in the radial direction and the axial direction respectively, which makes the row on the stator The wire is easier to lay, and a sealing channel can be set radially to lead out; in addition, the epoxy glue is directly poured radially into the first filling chamber (i.e. the position between the flange and the stator) so that the inside can be quickly filled, and the corresponding second filling chamber (i.e. the position between the stator and the packaging body) is poured axially. This is the side opposite to the rotor, and the sealing thickness is more uniform. An inner recess is set on the packaging body, so that after filling, a certain gap is guaranteed between the magnetic steel on the rotor and the stator to avoid the occurrence of chamber sweeping; not only that, the two sealing channels play a relative exhaust role, effectively reduce the trapped air situation, and ensure the glue filling rate; the stator sealing tooling described in the present invention greatly reduces the difficulty, and the end face flatness after sealing is high, which is suitable for mass production. The present invention is also provided with a plurality of blocks, through which a space is formed at the position of the corresponding block after the first filling chamber is filled, so as to facilitate the installation of an air gap adjustment structure when the motor is assembled. One end of the block is connected to the through hole (that is, one end of the block matches the core column), so that it is convenient to withdraw the potted block from the through hole position; such a design can realize the molding of the block position and the withdrawal of the block, and the structural design is exquisite and easy to implement. The present invention limits the radial and axial movement of the block by the locking piece and the limit column of the mounting limit structure, so as to ensure that there will be no interference during the later withdrawal, and the block can be easily withdrawn from the first filling chamber, and the air gap adjustment structure can be accurately aligned during the later assembly. The matching hole on the flange corresponding to the stopper installed in the present invention is a through hole, and is connected to the through hole; the present invention can realize the potting of any stator in the double-stator disc motor, and has a wider applicability. The present invention is also provided with a sealing ring, which is sleeved on the outer wall of the flange or the packaging body, so that the two are sleeved and assembled, the axial sealing effect is better, and leakage is not easy to occur during the potting process. The present invention sets the entrance of the potting channel upward, so that the epoxy glue flows from top to bottom during the potting process, and there is no need to inject too much pressure, so that the internal air can be easily discharged in enough time to avoid the situation of insufficient filling due to trapped air. The packaging body, core column and stopper described in the present invention are respectively made of Teflon material. The good anti-stickiness of Teflon material is used to enable the core column, stopper, etc. to smoothly separate from the epoxy glue.

[0067] The above specification and description of the embodiments are used to explain the protection scope of the utility model, but do not constitute a limitation on the protection scope of the utility model.

Claims

1. A tool for potting a disc motor stator, which is used for epoxy potting the stator of the motor; it is characterized by: The stator potting tooling includes: The packaging body is detachably fixedly connected to the flange on the motor, and the two cooperate to form a accommodating space for the stator to be limitedly loaded; the stator is located in the accommodating space, and the accommodating space is divided into a first filling chamber and a second filling chamber; The package body is provided with at least two encapsulation channels, a through hole and an inner concave portion; the inlets of the two encapsulation channels are respectively provided on the outer peripheral wall of the package body, and the outlets of the two encapsulation channels are respectively connected to the accommodating space along the radial direction and the axial direction of the package body, and the corresponding radial outlet is connected to the first filling chamber, and the axial outlet is connected to the second filling chamber; the through hole is provided at the center of the package body; and the inner concave portion is formed in the second filling chamber; The core column passes through the through hole and the stator and is sealed with the two. The two ends of the core column are respectively sealed and connected with the packaging body and the flange on the motor.

2. The stator potting tool for a disc motor according to claim 1, characterized in that: It also includes a plurality of stoppers arranged at intervals around the through hole; each of the stoppers is detachably fixed to the flange and fits tightly with the circumference of the core column so that it can be withdrawn from the through hole in the radial direction after potting.

3. The stator potting tool for a disc motor according to claim 2, characterized in that: It also includes an assembly limiting structure, which includes a locking piece and a limiting column. The locking piece passes through the flange and is connected to the stopper so that the end face of the stopper is sealed and fits against the flange. The limiting column is fixed to the flange and is matched with the arc surface on the stopper so that the stopper abuts against the core column and limits the circumferential and radial displacement of the stopper.

4. A tool for potting a disc-type motor stator according to claim 2 or 3, characterized in that: The core column is a stepped column, which includes a first step portion, a second step portion and a third step portion which are connected together. The first step portion has an outer diameter smaller than that of the second step portion and is used for sealing and assembling with a matching hole opened on a flange. The second step portion passes through the center of the stator and the through hole. The third step portion is located on the outer end surface of the packaging body and is used for screwing with the packaging body.

5. The stator potting tool for a disc motor according to claim 4, characterized in that: The matching hole on the flange plate on which the stopper is mounted is a through hole and is connected to the through hole.

6. The stator potting tool for a disc motor according to claim 1, characterized in that: It also includes a sealing ring, which is sleeved on either the flange or the packaging body and is correspondingly installed on the outer peripheral wall; wherein the packaging body and the flange are aligned and assembled to form a circumferential seal between the two.

7. The stator potting tool for a disc motor according to claim 1, characterized in that: The flange, the packaging body and the core column are sealed and assembled, and the inlets of the two encapsulation channels are both arranged upward.

8. The stator potting tool for a disc motor according to claim 3, characterized in that: The packaging body, the core column and the stopper are respectively made of Teflon material.

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