Motor glue filling and sealing jig
By designing a motor adhesive potting fixture and utilizing a soft silicone and plastic steel support structure, the problems of glue leakage and residual glue during the motor stator potting process were solved, improving the yield and efficiency of the motor coils and reducing the difficulty and cost of cooling.
Patent Information
- Application Number
- CN202423309951.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional motor stator potting processes suffer from problems such as high glue leakage rate, short lifespan, high cost, time-consuming and labor-intensive cooling, and excessive residual glue on the inner diameter, which affect motor performance and reliability.
The motor adhesive potting fixture uses soft silicone and an internal plastic steel support expansion structure, combined with PE film and cap design, to achieve convenient removal after potting and reduce residual adhesive, thereby improving work efficiency.
By combining soft silicone and plastic steel to form a round shape, the amount of glue leakage and residual glue is reduced, thereby improving the yield and working efficiency of the motor coil and reducing the difficulty and cost of cooling.
Smart Images
Figure CN223978561U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor stator potting fixture technology, and more specifically, to motor adhesive potting fixture. Background Technology
[0002] The potting process includes: potting the motor stator coil, spraying release agent, inserting the plastic steel core rod, applying 50°C high-temperature adhesive, potting, and curing at 100°C. Stator potting is a crucial step in the motor manufacturing process, directly impacting the performance and reliability of the servo motor. The contact point between the potting mold and the stator core is prone to various problems such as adhesive leakage and poor adhesion. If these issues are not addressed promptly, a large number of defective products will be produced, resulting in significant waste of raw materials. In practice, workers clean the potting fixture and product, spray release agent onto the surface, place the product in the center of the motor core, immerse it in the preheating tunnel for expansion, and once the required temperature is reached, the fixture expands to the required dimensions before entering the potting equipment for potting. The appropriate adhesive is then applied to the coil to achieve the required weight. The stator then enters the curing tunnel for 3 hours of curing.
[0003] However, the following problems exist in actual operation: the traditional mandrel has a high rate of glue leakage when placed into the iron core; it also has a short lifespan, low utilization rate, high cost, and time-consuming and laborious cooling and removal; there is residual glue in the inner diameter of the stator, which needs to be cleaned by grinding, and the roundness of the iron core cannot be guaranteed. Summary of the Invention
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a motor adhesive potting fixture that can use softer silicone with an internal plastic steel support for expansion, facilitating product cooling and removal, and improving the work efficiency of technicians.
[0005] To solve the above problems, the present invention adopts the following technical solution: a motor glue potting fixture, including a fixture body, an internal core rod, and a motor coil. The motor coil is located outside the internal core rod and in contact with it. This allows for the use of softer silicone with internal plastic steel support for expansion, facilitating product cooling and removal, and improving the work efficiency of technicians.
[0006] Furthermore, the built-in core rod includes a contact sleeve with an insertion hole at the upper end. A plastic steel round support is inserted into the insertion hole. By using the contact sleeve and the plastic steel round support together, the built-in core rod can be easily removed after the glue is poured, reducing the amount of glue remaining in the inner diameter of the motor coil and improving the work efficiency of technicians.
[0007] Furthermore, the contact sleeve is made of silicone material, and the diameter of the plastic steel dome is larger than the inner diameter of the socket. By using silicone material to make the contact sleeve, its deformable properties can be utilized to reduce the gap between the contact sleeve and the motor coil under the pressure of the plastic steel dome on the inner wall of the socket, thereby reducing the amount of residual adhesive on the inner wall of the motor coil after cooling.
[0008] Furthermore, the bottom end of the fixture body has two symmetrical injection holes. By setting the injection holes, it is convenient to inject glue into the fixture body after the motor coil is placed in, thereby realizing the injection of glue into the motor coil.
[0009] Furthermore, a PE film is fitted over the outer end of the fixture body, and a cap is attached to the upper end of the fixture body. By setting the PE film, the fixture body can be isolated during the cooling process, reducing the possibility of air bubbles appearing inside the motor coil after glue filling, thereby improving the yield of the motor coil after glue filling. The cap improves the sealing effect of the fixture body.
[0010] Furthermore, the bottom end of the contact sleeve is drilled with a through hole that communicates with the insertion hole, and the bottom end of the plastic steel round support is fixedly connected with a connecting cylinder that matches the through hole. By setting the through hole and the connecting cylinder, the contact sleeve can be pulled out at the same time when the plastic steel round support is pulled out upwards, thereby facilitating the removal of the cooled motor coil.
[0011] Compared with the prior art, the advantages of this utility model are: (1) This solution can use softer silicone, with plastic steel inside to expand and cool the product, making it easier to remove and improve the work efficiency of technicians.
[0012] (2) The built-in core rod includes a contact sleeve. The upper end of the contact sleeve is drilled with an insertion hole, and a plastic steel round support is inserted into the insertion hole. By using the contact sleeve and the plastic steel round support together, the built-in core rod can be easily removed after the glue is poured, reducing the amount of glue remaining in the inner diameter of the motor coil and improving the work efficiency of technicians.
[0013] (3) The contact sleeve is made of silicone material. The diameter of the plastic steel round support is larger than the inner diameter of the socket. By using silicone material to make the contact sleeve, its deformable properties can be used to reduce the gap between the contact sleeve and the motor coil under the pressure of the plastic steel round support on the inner wall of the socket, thereby reducing the amount of residual glue on the inner wall of the motor coil after cooling.
[0014] (4) Two symmetrical injection holes are drilled at the bottom of the fixture body. By setting injection holes, it is convenient to inject glue into the fixture body after the motor coil is placed in, so as to realize the injection of glue into the motor coil.
[0015] (5) A PE film is fitted on the outer end of the fixture body and a cap is attached to the upper end of the fixture body. By setting the PE film, the fixture body can be isolated during the cooling process, reducing the possibility of air bubbles appearing inside the motor coil after glue filling, thereby improving the yield of the motor coil after glue filling. The sealing effect of the fixture body is improved by setting the cap.
[0016] (6) A through hole connected to the insertion hole is drilled at the bottom of the contact sleeve, and a connecting cylinder matching the through hole is fixedly connected at the bottom of the plastic steel support. By setting the through hole and the connecting cylinder, the contact sleeve can be pulled out at the same time when the plastic steel support is pulled out upward, so as to facilitate the removal of the cooled motor coil. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the entire utility model;
[0018] Figure 2 This is a perspective view of the plastic-steel mandrel portion of this utility model;
[0019] Figure 3 This is a cross-sectional view of the present invention during the cooling process after glue application.
[0020] Explanation of the labels in the diagram:
[0021] 1. Fixture body; 101. Filling hole; 102. PE film; 103. Cap; 2. Contact sleeve; 201. Through hole; 3. Insertion hole; 4. Plastic steel round support; 401. Connecting cylinder; 5. Motor coil. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0025] Please see Figure 1-3 The motor adhesive potting fixture includes a fixture body 1, a built-in core rod inside the fixture body 1, and a motor coil 5 inside the fixture body 1. The motor coil 5 is located outside the built-in core rod and in contact with the built-in core rod. It can realize the use of softer silicone, with the addition of plastic steel to support the expansion, which facilitates the cooling and removal of the product and improves the work efficiency of technicians.
[0026] Please see Figure 1-2 The built-in core rod includes a contact sleeve 2, with an insertion hole 3 drilled at the upper end of the contact sleeve 2. A plastic steel round support 4 is inserted into the insertion hole 3. By using the contact sleeve 2 and the plastic steel round support 4 together, the built-in core rod can be easily removed after the glue is poured, reducing the amount of glue remaining in the inner diameter of the motor coil 5 and improving the work efficiency of technicians. The contact sleeve 2 is made of silicone material, and the diameter of the plastic steel round support 4 is slightly larger than the inner diameter of the insertion hole 3. By using silicone material to make the contact sleeve 2, its deformable properties can be utilized to reduce the gap between the contact sleeve 2 and the motor coil 5 under the pressure of the plastic steel round support 4 on the inner wall of the insertion hole 3, thereby reducing the amount of glue remaining on the inner wall of the motor coil 5 after cooling.
[0027] Please see Figure 1 and Figure 3 The fixture body 1 has two symmetrical injection holes 101 at its bottom. By setting the injection holes 101, it is convenient to inject glue into the fixture body 1 after the motor coil 5 is inserted, thereby realizing the injection of glue into the motor coil 5. The outer end of the fixture body 1 is covered with a PE film 102, and the upper end of the fixture body 1 is attached with a cap 103. By setting the PE film 102, the fixture body 1 can be isolated during the cooling process, reducing the possibility of air bubbles appearing inside the motor coil 5 after glue injection, thereby improving the yield of the motor coil 5 after glue injection. The cap 103 improves the sealing effect of the fixture body 1. The bottom end of the contact sleeve 2 has a through hole 201 that communicates with the insertion hole 3. The bottom end of the plastic steel round support 4 is fixedly connected with a connecting cylinder 401 that matches the through hole 201. By setting the through hole 201 and the connecting cylinder 401, the contact sleeve 2 can be pulled out at the same time when the plastic steel round support 4 is pulled upward, thereby facilitating the removal of the cooled motor coil 5.
[0028] When using this invention, technicians place the built-in core rod into the fixture body 1, and place the motor coil 5 between the fixture body 1 and the contact sleeve 2. Preheated glue to 50°C is poured into the fixture body 1 through the injection hole 101, and the plastic steel round support 4 is inserted into the insertion hole 3, causing the contact sleeve 2 to expand outward, making the contact sleeve 2 tightly adhere to the inner wall of the motor coil 5. After cooling, the motor coil 5 can be removed. Compared with the prior art, this invention can use softer silicone and add a plastic steel support for round expansion, which facilitates product cooling and removal, and improves the work efficiency of technicians.
[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A motor glue potting jig comprising a jig main body (1), characterized in that: The jig body (1) is internally provided with an embedded core rod, the jig body (1) is internally provided with a motor coil (5), and the motor coil (5) is located outside the embedded core rod and in contact with the embedded core rod.
2. The motor glue potting fixture of claim 1, wherein: The embedded core rod comprises a contact sleeve (2), an insertion hole (3) is opened at the upper end of the contact sleeve (2), and a plastic steel round support (4) is inserted in the insertion hole (3).
3. The motor glue potting fixture of claim 2, wherein: The contact sleeve (2) is made of silica gel material, and the diameter of the plastic steel round support (4) is greater than the inner diameter of the insertion hole (3).
4. The motor glue potting fixture of claim 1, wherein: Two mutually symmetrical filling holes (101) are opened at the bottom end of the jig body (1).
5. The motor glue potting fixture of claim 1, wherein: A PE film (102) is sleeved at the outer end of the jig body (1), and a cover (103) is adhered at the upper end of the jig body (1).
6. The motor glue potting fixture of claim 2, wherein: A through hole (201) in communication with the insertion hole (3) is opened at the bottom end of the contact sleeve (2), and the plastic steel round support (4) is fixedly connected with a connecting cylinder (401) matched with the through hole (201).