Winding stator core

Abstract

The utility model relates to the technical field of winding stator iron cores, in particular to a winding stator iron core, which comprises an iron core, a plurality of groups of wire slots are arranged on the inner wall of the iron core, coils are wound and connected between adjacent wire slots, notches are arranged on one sides of the plurality of groups of wire slots, a heat dissipation cavity is fixedly connected inside the iron core, one end of the iron core is in threaded connection with a filtering assembly, and the other end of the iron core is in threaded connection with the filtering assembly. Both the filtering assembly and the outlet are communicated with the heat dissipation cavity; the heat dissipation cavity is embedded in the iron core, liquid with low temperature is conveyed into the heat dissipation cavity through the filtering assembly, the liquid flows through the heat dissipation cavity and is discharged from the outlet, and the liquid absorbs heat of the iron core after passing through the heat dissipation cavity, so that the heat of the iron core is discharged, and the heat dissipation efficiency of the motor is improved; and meanwhile, the filtering assembly can prevent impurities in the liquid from entering the heat dissipation cavity, and the service life of the heat dissipation cavity is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of winding stator core, specifically is a winding stator core. BACKGROUND

[0002] Winding stator core is composed of winding, core and the like structure, winding is composed of coil, coil is wound in the core inside according to certain rule, constitutes three-phase winding, three-phase current is introduced into three-phase winding, and magnetic field is generated.

[0003] The existing winding stator core such as the stator and motor in patent application number "CN202321553630.2" are provided, the stator includes: stator body and insulating piece, the stator body has the mounting hole for installing coil, the mounting hole extends along the axial direction of the stator body, the insulating piece is arranged on the inner surface of the mounting hole and is fixed with the stator body, the insulating piece is arranged on the inner surface of the mounting hole and is fixed with the stator body, so that the fitting degree of the insulating piece and the inner surface of the mounting hole can be improved, the insulating piece can be prevented from moving and breaking, and the insulating performance of the insulating piece on the stator can be improved.

[0004] But the prior art has defects, the coil is heated when electrified, the motor also generates heat when running, the heat cannot be dissipated in time and is accumulated in the motor, which affects the motor operating efficiency, causes influence to the coil and other components, and shortens the service life of the motor, therefore, a winding stator core is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a winding stator core to solve the problems in the above background art.

[0006] The purpose of the utility model can be realized by the following technical scheme:

[0007] A winding stator core, comprising a core, a plurality of wire slots are formed in the inner wall of the core, coils are connected between adjacent wire slots, a plurality of wire slots are provided with a slot on one side, a heat dissipation cavity is fixedly connected inside the core, a filter assembly is threadedly connected to one end of the core, and an outlet is fixedly connected to the other end, and the filter assembly and the outlet are in communication with the heat dissipation cavity.

[0008] Preferably, the heat dissipation cavity is provided with a plurality of groups, the plurality of groups of heat dissipation cavities are arranged in a linear array, the plurality of groups of heat dissipation cavities are all circular rings, the heat dissipation cavities are aligned with the axis of the core, and a through pipe is fixedly connected between adjacent heat dissipation cavities.

[0009] Preferably, the filter assembly comprises a communication seat, one end of the communication seat is threadedly connected with the core, the inside of the communication seat is in communication with the inside of the heat dissipation cavity, an inlet is fixedly connected to the other end of the communication seat, a filter plate is fixedly connected in the inside of the communication seat, and filter holes are formed in the surface of the filter plate.

[0010] Preferably, the iron core is externally fixed with a cover, the outer wall of the iron core is provided with a positioning groove, the positioning groove is in butt joint with the cover, and the iron core is externally fixed with an end cover at two ends.

[0011] Preferably, the inner wall of the two groups of end covers is adhered with an isolation layer, the isolation layer is located between the end cover and the coil, a notch is formed in the two groups of end covers, and the filtering assembly and the outlet are located in the notch.

[0012] Preferably, the end cover is externally fixed with a connecting end, the connecting end is externally fixed with a wiring end, and one end of the connecting end is electrically connected with the coil.

[0013] The motor has the advantages that:

[0014] The motor has the advantages that: the heat dissipation cavity is embedded in the iron core, the filtering assembly is used for conveying the liquid with low temperature into the heat dissipation cavity, the liquid flows through the heat dissipation cavity and is discharged from the outlet, the liquid absorbs the heat of the iron core when flowing through the heat dissipation cavity, the heat of the iron core is discharged, the heat dissipation efficiency of the motor is improved, and the filtering assembly prevents the impurities in the liquid from entering the heat dissipation cavity, thereby prolonging the service life of the heat dissipation cavity. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, other drawings can also be obtained by those skilled in the art without any creative effort.

[0016] Figure 1 is a front structure schematic view of the present application;

[0017] Figure 2 is a back structure schematic view of the present application;

[0018] Figure 3 is a heat dissipation cavity communication structure schematic view of the present application;

[0019] Figure 4 is an iron core internal structure schematic view of the present application;

[0020] Figure 5 is an iron core cross-section structure schematic view of the present application;

[0021] The reference signs in the drawings are as follows:

[0022] 1, cover; 2, iron core; 3, heat dissipation cavity; 4, through pipe; 5, communication seat; 6, filter plate; 7, outlet; 8, end cover; 9, connecting end; 10, wiring end; 11, wire slot; 12, slot; 13, coil; 14, positioning groove; 15, notch; 16, inlet; 17, isolation layer. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A type of winding stator core, such as Figures 1-5 As shown, the device includes an iron core 2, with multiple sets of wire grooves 11 opened on the inner wall of the iron core 2. A coil 13 is wound and connected between adjacent wire grooves 11. A slot 12 is opened on one side of each set of wire grooves 11. A heat dissipation cavity 3 is fixedly connected inside the iron core 2. A filter assembly is threadedly connected to one end of the iron core 2, and an outlet 7 is fixedly connected to the other end. Both the filter assembly and the outlet 7 are connected to the heat dissipation cavity 3.

[0025] The coil 13 is wound inside the slot 11 of the iron core 2 to form the winding stator iron core 2. A heat dissipation cavity 3 is embedded inside the iron core 2. The iron core 2 has a multi-layer structure, and the heat dissipation cavity 3 is a single component installed in the middle of the multi-layer structure. After installation, the iron core 2 is welded into a layered whole. A low-temperature liquid is supplied to the heat dissipation cavity 3 through a filter assembly. The liquid flows through the heat dissipation cavity 3 and is discharged from the outlet 7. The liquid absorbs heat from the iron core 2 as it passes through the heat dissipation cavity 3, thereby dissipating the heat from the iron core 2 and improving the heat dissipation efficiency of the motor. At the same time, the filter assembly can prevent impurities inside the liquid from entering the heat dissipation cavity 3 and improve the service life of the heat dissipation cavity 3.

[0026] like Figure 3 and Figure 5 As shown, the heat dissipation cavity 3 is provided in multiple sets, and the multiple sets of heat dissipation cavities 3 are arranged in a linear array. All sets of heat dissipation cavities 3 are set as annular, and the heat dissipation cavity 3 is aligned with the axis of the iron core 2. A through pipe 4 is fixedly connected between adjacent heat dissipation cavities 3.

[0027] The multiple heat dissipation cavities 3 have better heat dissipation effect. The heat dissipation ring is sleeved on the iron wire, and the through pipe 4 connects the multiple heat dissipation cavities 3.

[0028] like Figures 1-5 As shown, the filter assembly includes a connecting seat 5, one end of which is threadedly connected to the iron core 2, and the interior of the connecting seat 5 is connected to the interior of the heat dissipation cavity 3. The other end of the connecting seat 5 is fixedly connected to an inlet 16, and a filter plate 6 is fixedly connected inside the connecting seat 5. Filter holes are opened on the surface of the filter plate 6.

[0029] The connecting seat 5 is connected by a thread for easy disassembly and assembly. The liquid used for cooling and heat dissipation enters the connecting seat 5 through the inlet 16, passes through the filter plate 6 and enters the heat dissipation chamber 3. It flows through the pipe 4 in multiple heat dissipation chambers 3 and finally exits through the outlet 7. It absorbs the heat from the iron core 2 and the motor and carries away the heat.

[0030] As Figures 1-5 shown, the iron core 2 is externally fixed with a cover 1, the outer wall of the iron core 2 is provided with a positioning groove 14, the positioning groove 14 is in butt joint with the cover 1, and the iron core 2 is externally fixed with an end cover 8 at both ends.

[0031] The cover 1 protects the iron core 2 and facilitates the installation of the iron core 2, the positioning groove 14 facilitates the installation between the iron core 2 and the cover 1, and the end cover 8 blocks the two ends of the iron core 2.

[0032] As Figure 5 shown, the inner wall of the two groups of end covers 8 is adhered with an isolation layer 17, the isolation layer 17 is located between the end cover 8 and the coil 13, the two groups of end covers 8 are provided with a notch 15, and the filtering assembly and the outlet 7 are located in the notch 15.

[0033] The isolation layer 17 improves the insulation performance of the two ends of the coil 13, and the notch 15 facilitates the connection of the filtering assembly and the outlet 7.

[0034] As Figure 1 and Figure 5 shown, the end cover 8 is externally fixed with a connecting end 9, the end of the connecting end 9 is externally fixed with a wiring end 10, and one end of the connecting end 9 is electrically connected with the coil 13.

[0035] The three-phase current is communicated through the wiring end 10, the connecting end 9 and the coil 13.

[0036] The working principle of the winding stator iron core provided by the utility model is as follows:

[0037] The coil 13 is wound inside the wire slot 11 of the iron core 2 to form a winding stator iron core 2, the heat dissipation cavity 3 is embedded and installed inside the iron core 2, the filtering assembly is used for conveying the liquid with low temperature into the heat dissipation cavity 3, the liquid flows through the heat dissipation cavity 3 and is discharged from the outlet 7, the liquid flowing through the heat dissipation cavity 3 absorbs the heat of the iron core 2, so that the heat of the iron core 2 is discharged, the heat dissipation efficiency of the motor is improved, meanwhile, the filtering assembly can prevent the impurities in the liquid from entering the heat dissipation cavity 3, and the service life of the heat dissipation cavity 3 is improved.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A winding stator core comprising a core (2), characterized in that, The inner wall of the iron core (2) is provided with a plurality of groups of wire slots (11), the adjacent wire slots (11) are connected by winding the coil (13), a plurality of groups of wire slots (11) are provided with a slot (12) on one side, the iron core (2) is internally connected with a heat dissipation cavity (3), the iron core (2) is threadedly connected with a filtering assembly at one end, and the other end is fixedly connected with an outlet (7), and the filtering assembly and the outlet (7) are in communication with the heat dissipation cavity (3).

2. A wound stator core according to claim 1, characterized in that The heat dissipation cavity (3) is provided with a plurality of groups, and the plurality of groups of heat dissipation cavities (3) are arranged in linear array, the plurality of groups of heat dissipation cavities (3) are provided as circular rings, and the heat dissipation cavities (3) are aligned with the axis of the iron core (2), and the adjacent heat dissipation cavities (3) are fixedly connected with the pipes (4).

3. A wound stator core according to claim 2, characterized in that The filtering assembly comprises a communication seat (5), one end of the communication seat (5) is threadedly connected with the iron core (2), the inside of the communication seat (5) is in communication with the inside of the heat dissipation cavity (3), the other end of the communication seat (5) is fixedly connected with an inlet (16), the inside of the communication seat (5) is fixedly connected with a filter plate (6), and the filter plate (6) is provided with filter holes on the surface.

4. A wound stator core according to claim 3, characterized in that The outer portion of the iron core (2) is fixedly connected with a cover (1), the outer wall of the iron core (2) is provided with a positioning groove (14), the positioning groove (14) is in abutting fit with the cover (1), and the two ends of the iron core (2) are fixedly connected with end covers (8).

5. A wound stator core according to claim 4, characterized in that The inner wall of the two groups of end covers (8) is bonded with an isolation layer (17), the isolation layer (17) is located between the end cover (8) and the coil (13), and the two groups of end covers (8) are provided with notches (15), the filtering assembly and the outlet (7) are located in the notches (15).

6. A wound stator core according to claim 4, characterized in that The end cover (8) is fixedly connected with a connecting end (9), the connecting end (9) is fixedly connected with a wiring end (10), and one end of the connecting end (9) is electrically connected with the coil (13).

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