Glue pouring device for motor stator assembly

Abstract

A glue pouring device for a motor stator assembly comprises an inner positioning piece matched with an inner ring of a stator iron core in an inner attaching mode and an outer positioning piece matched with an outer ring of the stator iron core in an outer attaching mode, the inner positioning piece and the outer positioning piece are each provided with a covering part capable of covering part of end faces of the inner ring and the outer ring at the two ends of the stator iron core, and a gap is reserved between each covering part and a winding coil. The glue filling device can control and position the thicknesses of the glue layers of the inner ring and the outer ring of the coil winding through the covering part, so that after glue filling is completed, only the thickness of the glue layer on the end face needs to be removed, the ideal glue layer thickness is processed, the subsequent processing difficulty is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production, in particular to a glue pouring device for a motor stator assembly. Background Art

[0002] The stator of the motor needs to be processed by glue filling, and generally a glue filling device is used to fill the stator with glue. The existing glue filling device, such as the Chinese utility model patent with application number 202023221892.8, is named as a glue filling device suitable for frameless motor stators, which includes a main glue filling shell and a secondary glue filling shell, and their respective inner walls are provided with an iron core stop mechanism. This iron core stop mechanism includes a main stop boss located on the lower side of the inner wall of the main glue filling shell and the secondary glue filling shell, and a secondary stop boss is provided at the corresponding position on the upper side of the inner wall of the main glue filling shell and the secondary glue filling shell. The purpose of the stop platform is to limit the iron core to a certain height to avoid contact between the coil and the bottom surface, and ensure that the coil can be fully wrapped during glue filling. However, after the actual glue filling is completed, it is only necessary to wrap the outer layer of the coil with a certain thickness of glue. After completing the glue filling, this device also needs to process the coil end face and the inner and outer circles by machining to remove excess glue so that the thickness of the glue layer wrapped on the coil is within a reasonable range. Utility Model Content

[0003] In order to solve the problem that the glue filling device in the above-mentioned prior art cannot control the thickness of the glue layer on the coil when filling the stator with glue,

[0004] The technical solution of the utility model is: a glue pouring device for a motor stator assembly, comprising an inner positioning piece that fits inside the inner ring of the stator core and an outer positioning piece that fits outside the outer ring of the stator core, wherein both the inner positioning piece and the outer positioning piece are provided with a covering part that can cover the end faces of the inner ring and the outer ring at both ends of the stator core and reserve a gap between the winding coil.

[0005] Preferably, convection holes are provided on the inner positioning member and / or the outer positioning member.

[0006] Preferably, the inner positioning member includes a base and a positioning column arranged on the base, the positioning column is in contact with the inner ring of the stator core, and a pressure cover and a boss are provided on the positioning column which can cover the end faces of the inner ring of the stator core at both ends.

[0007] Preferably, a pair of convex rings capable of covering the end faces of the outer ring portions at both ends of the stator core are provided on the external positioning member.

[0008] Preferably, the external positioning member is divided and assembled along the axis.

[0009] Preferably, the outer positioning member is divided and assembled along the axial direction.

[0010] Preferably, it also includes a fastener for maintaining the assembled state of the external positioning parts.

[0011] The beneficial effects of the utility model are as follows: the glue pouring device can control the thickness of the glue layer of the inner and outer circles of the positioning coil winding through the covering part, so that after the glue pouring is completed, only the thickness of the end surface glue layer needs to be removed to process the ideal glue layer thickness, which reduces the difficulty of subsequent processing and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a partial cross-sectional schematic diagram of the glue filling device;

[0013] Figure 2 This is the exploded view of the inner locating part;

[0014] Figure 3 This is an exploded view of the external positioning member embodiment 1;

[0015] Figure 4 This is an exploded view of embodiment 2 of the external positioning member. DETAILED DESCRIPTION

[0016] In order to better understand the concept of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] like Figure 1 The glue pouring device shown includes an inner positioning member 1 and an outer positioning member 2. The inner positioning member 1 passes through the center hole of the stator core A and fits with the inner wall of the inner ring of the stator core. The outer positioning member 2 is sleeved on the outer ring of the stator core A and fits with the outer wall of the outer ring of the stator core.

[0018] like Figure 1 As shown in the partial enlargement, covering parts 3 are provided on both the inner positioning member 1 and the outer positioning member 2, wherein the covering part 3 on the inner positioning member 1 covers the end faces of the inner ring parts at both ends of the stator core, and the covering part 3 on the outer positioning member 2 covers the end faces of the outer ring parts at both ends of the stator core, and a certain gap C is left between the covering part 3 and the coil winding B, and this gap can keep the glue in this gap during glue pouring, so that the thickness of the glue covering the inner and outer rings of the coil winding can be controlled through this gap.

[0019] In order to maintain the fluidity of the colloid during the glue pouring process, Figure 1 As shown, convection holes 4 are also provided on the side wall of the outer positioning member 2 to ensure that the glue maintains good fluidity when pouring glue from the top of the glue pouring device, so that the glue can completely occupy the reserved space inside the device and the winding is completely covered. Of course, the convection holes 4 can also be opened on the inner positioning member 1.

[0020] How to form the covering portion 3 on the inner positioning member 1 and the outer positioning member 2 will be described in further detail below with specific structures.

[0021] like Figure 2 The inner positioning member 1 shown includes a base 1-1 and a positioning column 1-2. A boss 1-4 is arranged on the positioning column 1-2. The boss serves as a covering portion 3 on the inner positioning member 1 for covering the end face of the inner ring portion of the lower end of the stator core. When the stator core is sleeved on the positioning column 1-2, the boss 1-4 limits the end face of the lower end of the stator core and covers the end face of the inner ring portion. A pressure cover 1-3 is also arranged on the positioning column 1-2. The outer diameter of the pressure cover 1-3 is slightly larger than the outer diameter of the matching portion of the positioning column 1-2 and the inner hole of the stator core, so that by connecting the end cover to the positioning column 1-2, the upper end face of the stator core can be limited and the upper end face of the inner ring of the stator core can be covered.

[0022] like Figure 3 The figure shows one embodiment of the external positioning member 2. The external positioning member 2 is composed of two components that are symmetrical on the left and right. A pair of convex rings 2-1 are arranged inside the external positioning member 2. The convex rings 2-1 are covering parts 3 on the external positioning member 2 that can cover the end faces of the outer rings at both ends of the stator core. In order to reserve space for the glue to invade the stator core, the inner diameter of the convex ring 2-1 is slightly smaller than the outer diameter of the stator core, so that the inner and outer rings at both ends of the stator core can be partially covered by the convex rings 2-1.

[0023] Specifically, the outer positioning member is composed of two left-right symmetrical components, such as Figure 3 As shown, the outer positioning member 2 includes a pair of symmetrical surrounding members 2-2 which are divided and assembled along the axis of the outer positioning member 2. The surrounding members 2-2 are in the shape of a semicircular ring. A convex ring 2-1 is arranged inside each surrounding member 2-2. When the two surrounding members 2-2 are respectively installed on the outer ring of the stator core, in order to prevent the surrounding members 2-2 from falling off, a fastener 5 which can fasten the surrounding members 2-2 to maintain the assembled state is arranged on the outer side of the surrounding member 2-2. The fastener 5 is a clamp. After the installation is completed, the convex ring 2-1 limits the upper and lower end faces of the outer ring of the stator core and covers the upper and lower end faces of the outer ring.

[0024] The structure of the second external positioning member 2 is as follows Figure 4 As shown, the outer positioning member 2 includes a pair of components which are divided and assembled up and down along the axial direction by the outer positioning member 2, and the components are tubular. The upper enclosure 2-3 is a circular ring, and the inner diameter of the circular ring is slightly smaller than the outer diameter of the stator core. The upper enclosure 2-3 can cover the end surface of the outer ring portion of the upper end of the stator core. The lower enclosure 2-4 is a circular ring, and a circle of bosses is arranged in the lower enclosure 2-4, which can cover the end surface of the outer ring portion of the lower end of the stator core. The upper enclosure 2-3 and the lower enclosure 2-4 cooperate to limit the upper and lower end surfaces of the outer ring of the stator core. In order to prevent the upper enclosure 2-3 and the lower enclosure 2-4 from being installed loosely, fasteners 5 are arranged on the upper enclosure 2-3 and the lower enclosure 2-4. The fasteners 5 are bolts, and the bolts pass through the upper enclosure 2-3 and are fixed to the lower enclosure 2-4.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A glue pouring device for a motor stator assembly, comprising an inner positioning member (1) that is in close contact with the inner ring of a stator core and an outer positioning member (2) that is in close contact with the outer ring of a stator core, Features: The inner positioning member (1) and the outer positioning member (2) are both provided with a covering portion (3) which can cover the inner ring and part of the outer ring end surfaces at both ends of the stator core and has a gap reserved between the winding coil.

2. A motor stator assembly glue pouring device according to claim 1, Features: Convection holes (4) are provided on the inner positioning member (1) and / or the outer positioning member (2).

3. A motor stator assembly glue pouring device according to claim 1, Features: The inner positioning member (1) comprises a base (1-1) and a positioning column (1-2) arranged on the base (1-1); the positioning column (1-2) is fitted with the inner ring of the stator core; and a pressure cover (1-3) and a boss (1-4) capable of covering the end faces of the inner ring portions at both ends of the stator core are arranged on the positioning column (1-2).

4. A glue pouring device for a motor stator assembly according to claim 1, Features: A pair of convex rings (2-1) capable of covering the end surfaces of the outer ring portions at both ends of the stator core are arranged on the outer positioning member (2).

5. A glue pouring device for a motor stator assembly according to claim 4, Features: The outer positioning member (2) is divided and assembled along the axis.

6. A glue pouring device for a motor stator assembly according to claim 4, Features: The outer positioning member (2) is divided and assembled along the axial direction.

7. A glue pouring device for a motor stator assembly according to claim 5 or 6, Features: It also includes a fastener (5) for maintaining the assembled state of the external positioning member (2).

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