Novel winding rotor with end portion fixed through glue pouring

Abstract

The utility model relates to the technical field of motor driving, in particular to a novel winding rotor with end portions fixed through glue pouring, which comprises an inner winding iron core, and iron core end pressing plates are positioned and fixed at two ends of the inner winding iron core. According to the novel winding rotor with the end portion fixed through glue pouring, the end portion of the winding is further strengthened and fixed through the glue pouring technology, and deformation and displacement of the winding caused by centrifugal force and electromagnetic vibration during rotation are reduced; and the winding end part is fixed through a glue pouring process, and the winding of the inner rotor can use a hard wire or a scattered wire. The rotor is suitable for winding motors of inner winding rotors and special electromagnetically driven rotors of other inner winding rotors; the winding end is fixed through glue pouring, heat conduction of glue is higher than that of air, heat in the end winding can be conducted through the inner fixing ring, and the heat conduction coefficient is increased; the end part of the winding is fixed by pouring glue, the heat dissipation area of the winding is increased by utilizing the wrapping property of the glue, and the temperature rise of the winding is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor drive technical field especially a novel winding rotor of end glue pouring fixed. BACKGROUND

[0002] In the existing winding rotor motor structure, the inner rotor is an important component. The inner rotor is composed of a core and a winding. The winding material usually uses hard copper wire, which has good electrical conductivity and mechanical strength. The winding is composed of multiple coils, which are wound in the slots of the inner rotor core. The number and arrangement of the coils are determined according to the design requirements of the motor. The hard winding is usually inserted into the core.

[0003] However, the current winding rotor motor with an inner rotor structure has some problems and defects. First of all, the mechanical strength is a major concern. This type of motor is generally suitable for low-speed applications, and the rotor end is usually bundled and wrapped with glass fiber tape. However, during high-speed operation, the inner rotor is subjected to a large centrifugal force and vibration, which may cause the winding to be unable to withstand these mechanical stresses, thereby affecting the performance and reliability of the motor.

[0004] Secondly, the flexibility and adaptability of the inner rotor winding are poor. Although the design of hard wire winding is widely used in large motors, the core of the inner rotor is mostly designed with a closed slot structure to better fix the rotor winding due to the centrifugal force. However, the closed slot design poses a challenge to the production of hard wire windings. Since hard wire windings generally use an insertion structure, this structure cannot form complete coils at the end during production, and end welding must be performed after the coils are fixed in the slots. This process limits the number of turns of the coil. Too many turns will significantly increase the amount of welding, increasing the difficulty of the process. Therefore, current hard wire coils can only be single or double turns, limited by the number of turns, rotor diameter, and pole slot coordination. The back electromotive force voltage is also limited, leaving little room for adjustment and optimization.

[0005] In addition, the inner winding rotor generally does not use a loose wire winding because it is more troublesome to bind and fix the loose wire.

[0006] In summary, the existing winding structure of the inner winding rotor needs to be improved in terms of fixation. INVENTION CONTENTS

[0007] The technical problem to be solved by the utility model is that the existing inner winding rotor structure winding fixation method has certain defects.

[0008] The utility model discloses a technical scheme that solves its technical problem is as follows: a novel winding rotor of end portion glue pouring fixing, including inner winding core, the both ends of inner winding core are positioned and fixed with the iron core end pressing plate, the winding coil is embedded to the inside of the installation groove of inner winding core, the outer side fixed connection of iron core end pressing plate has the inner fixed ring, the outer side of special glue through special glue pouring solidification, special glue wraps the inside winding coil end, the outer side of solidified special glue is wound and fixed with carbon fiber silk.

[0009] The inner rotor core is formed by fixing a plurality of silicon steel sheets through the iron core end pressing plates at both ends.

[0010] The inner fixed ring has a plurality of inner fixed ring heat sink rib plates on the inner arc surface.

[0011] The winding coil end is provided with fiber silk for strengthening stability at the glue gap.

[0012] The winding coil end is provided with fiber silk for strengthening stability at the glue gap.

[0013] The inner fixed ring heat sink rib plates are arranged in a ring array on the inner arc surface of the inner fixed ring.

[0014] The utility model discloses the beneficial effect is:

[0015] (1) the novel winding rotor of end portion glue pouring fixing of the utility model further strengthens the winding end portion through the glue pouring process, and the deformation displacement of winding caused by centrifugal force and electromagnetic vibration when rotating is reduced.

[0016] (2) the winding end portion is fixed through the glue pouring process, and the winding of the inner rotor can use hard wire or can use scattered wire. It is suitable for the winding motor of inner winding rotor and other inner winding rotor special electromagnetic drive rotor.

[0017] (3) the winding end portion is fixed through the glue pouring, and the heat inside the end portion winding can be conducted through the inner fixed ring by utilizing the higher heat conductivity of glue than air, and the heat conduction coefficient is increased.

[0018] (4) the winding end portion is fixed through the glue pouring, and the heat dissipation area of winding is increased by utilizing the wrapping property of glue, and the temperature rise of winding is further reduced. DRAWINGS

[0019] The utility model is further illustrated below in connection with the drawings and examples.

[0020] Figure 1 It is the structure schematic diagram of the utility model.

[0021] Figure 2 It is the side view of the inner fixed ring in the utility model. DETAILED DESCRIPTION

[0022] The utility model will be explained in further detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model.

[0023] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Figure 1 And Figure 2 The inner rotor core 1 shown in the figure is formed by laminating a plurality of silicon steel sheets, and is positioned and fixed by the two end core end plates 2, wherein the inner fixing ring 6 is fixedly connected with the core end plate 2 at the outer side, the inner fixing ring 6 is arranged concentrically with the winding core, the winding coil 3 is embedded into the slot of the inner rotor core 1, and then special glue 5 is filled and solidified, a glue filling tool similar to the size of the carbon fiber wire 4 can be used to shield during the filling process of the special glue 5, and after the special glue 5 is solidified, the glue filling tool is removed to pre-press and wind the carbon fiber wire 4, forming a complete inner winding rotor.

[0025] Before filling the glue, reinforced fiber wire material is added in the gap at the end of the winding coil 3, so that it is solidified together with the special glue 5;

[0026] During the winding process of the carbon fiber wire 4, special curing glue for carbon fiber can be added at the same time, and the winding diameter of the carbon fiber wire 4 is not higher than the maximum outer circle of the inner rotor core 1.

[0027] The inner wall of the inner fixing ring 6 is provided with an inner fixing ring heat dissipation rib plate 61, and the material can use aluminum alloy material with good heat dissipation.

[0028] The main components of the special glue 5 are epoxy glue, flame-retardant powder and heat-conducting powder.

[0029] Based on the ideal embodiment of the utility model, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A novel end-capped fixed winding rotor, comprising an inner winding core (1), characterized in that: The inner winding core (1) is fixed with core end pressure plates (2) at both ends. The inner winding core (1) has a winding coil (3) embedded in the mounting groove. The core end pressure plate (2) is fixedly connected with an inner fixing ring (6). The inner fixing ring (6) is sealed and cured with glue (5). The glue (5) wraps the end of the inner winding coil (3). The cured glue (5) is wrapped with carbon fiber filaments (4).

2. A novel end-capped, glue-fixed winding rotor according to claim 1, characterized in that: The inner winding core (1) is formed and fixed by stacking several silicon steel sheets through the core end pressure plates (2) at both ends.

3. A novel end-capped, glue-fixed winding rotor according to claim 1, characterized in that: The inner arc-shaped surface of the inner fixing ring (6) has a plurality of inner fixing ring heat dissipation fins (61).

4. A novel end-capped, glue-fixed winding rotor according to claim 1, characterized in that: The diameter of the carbon fiber filament (4) is not higher than the maximum outer diameter of the inner winding core (1).

5. A novel end-capped, glue-fixed winding rotor according to claim 1, characterized in that: The glue gap at the end of the winding coil (3) is provided with fiber filaments to enhance stability.

6. A novel end-capped, glue-fixed winding rotor according to claim 3, characterized in that: The heat dissipation fins (61) of the inner fixing ring are arranged in a ring array on the inner arc surface of the inner fixing ring (6).

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