Wear-resistant high-stability stator assembly for new energy automobile motor

Abstract

The utility model discloses a wear-resistant high-stability stator assembly for a new energy automobile motor, which relates to the technical field of motor stators and comprises a stator core, a plurality of winding posts and winding grooves are formed on the inner wall of the stator core, and wear-resistant gaskets are additionally arranged at the top end and the bottom end of the stator core. And the two anti-abrasion gaskets are arranged on the stator core through the connecting upper screw, the connecting lower screw, the reinforcing screw rod and the reinforcing thread groove. According to the wear-resistant and high-stability stator assembly for the new energy automobile motor, the two wear-resistant gaskets are additionally arranged between the stator core and the upper and lower bearings, so that the problem of wear caused by friction between the stator core and the upper and lower bearings during operation of an existing motor can be effectively solved, and the wear resistance of the stator is improved; and through the cooperation of a plurality of groups of connecting upper screws and connecting lower screws and the reinforcement of the reinforcing thread grooves and the reinforcing screw rods, the connection stability of the anti-abrasion gaskets and the stator iron core can be effectively ensured, and the practicability of the stator is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator technical field, concretely is a kind of wear-resistant high-stable stator assembly for new energy automobile motor. BACKGROUND

[0002] With the continuous development of new energy vehicles and the gradual improvement of market demand for driving ability of new energy vehicles, new energy vehicle driving motor needs to continuously improve the speed, torque density and power density, wherein the motor stator is an important component of motor, and the stator structure mainly includes a stator core with a central hole, and a plurality of winding slots are formed in the stator core, and a coil winding is arranged in the winding slot.

[0003] In the related art, some motors are provided with oil cooling devices for heat dissipation, which form flow channels by punching holes on the stator core punching sheet and stacking to supply oil and complete cooling. However, the cooling oil flow path of this structure is relatively single, and uneven cooling problems are likely to occur, thereby reducing the cooling effect. In order to overcome the above-mentioned defects, the prior art (Chinese patent with application number 202421105116.7 and application date 2024-05-20) a stator core, a stator assembly and a motor, by opening an oil inlet groove on the circumferential support portion of the stator yoke, the cooling oil is divided into multiple flow paths, each flow path can quickly enter the interior of the stator core, and the cooling oil is more evenly distributed, avoiding uneven cooling problems and improving the cooling effect. However, the existing motor operates, the stator will rub with the bearings located at the top and bottom ends, causing the stator core to wear, thereby affecting its use effect, and reducing the practicability of the stator structure.

[0004] In view of the above problems, it is necessary to make innovative design on the basis of the original equipment, therefore we put forward a kind of wear-resistant high-stable stator assembly for new energy automobile motor can well solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of wear-resistant high-stable stator assembly for new energy automobile motor to solve the above background technology proposed existing motor operates, the stator will rub with the bearings located at the top and bottom ends, causing the stator core to wear, thereby affecting its use effect, and reducing the practicability of the stator structure problem.

[0006] In order to realize the above object, the utility model provides the following technical scheme: A kind of stator assembly for wear-resistant high-stable new energy vehicle motor, including stator core, the inner wall of the stator core is shaped with the multiple winding posts of circumferentially uniform arrangement, and the winding slot is shaped between adjacent two winding posts;The top end and the bottom end of the stator core are additionally provided with wear-resistant gasket, the inside of the stator core is provided with multiple connecting thread grooves, the top end and the bottom end of the inside of the connecting thread groove are respectively threadedly connected with connecting upper screw, connecting lower screw, and two wear-resistant gaskets are fixedly installed on the top end and the bottom end of the stator core by connecting upper screw, connecting lower screw, the top end of the connecting lower screw is provided with reinforcing thread groove, and the bottom end of connecting upper screw is fixedly connected with reinforcing screw rod, and reinforcing screw rod is threadedly connected in the inside of reinforcing thread groove.

[0007] Preferably, the winding post is composed of a winding part and a clamping part, the winding part is fixedly connected to the inner wall of the stator core, and the clamping part has a crescent structure, and the top end and the bottom of the winding part are provided with a sunken groove, i.e., the clamping part is sunken inward.

[0008] Preferably, the threads of the connecting upper screw and the reinforcing screw rod have the same direction and spacing, so that the connecting upper screw, the connecting thread groove, the reinforcing screw rod and the reinforcing thread groove are connected downward synchronously.

[0009] Preferably, the inner side of the stator core is provided with multiple cooling grooves distributed circumferentially, and the cooling grooves and the connecting thread grooves are distributed alternately, and the wear-resistant gasket is provided with through holes corresponding to the cooling grooves.

[0010] Preferably, the inside of the stator core is provided with multiple layers of first and second reinforcing ribs distributed vertically and alternately, and the first and second reinforcing ribs form a triangular structure with the inside of the cooling groove and the side wall of the cooling groove.

[0011] Preferably, the first reinforcing rib passes outside the connecting thread groove and abuts against the inner side wall of each cooling groove, and the second reinforcing rib is distributed inside the connecting thread groove and abuts against the outer side wall of each cooling groove.

[0012] Preferably, the outer wall of the stator core is provided with multiple bidirectional limiting strips, one side of the bidirectional limiting strip is a round edge, and the other side is a right angle edge, and the round edge and the right angle edge of adjacent bidirectional limiting strips are opposite.

[0013] Compared with the prior art, the new energy vehicle motor stator assembly has the advantages that two anti-wear gaskets are arranged between the stator core and the upper and lower bearings, the problem of wear caused by friction between the stator core and the upper and lower bearings during operation of the existing motor is effectively solved, the wear resistance of the stator is improved, the connection stability of the anti-wear gasket and the stator core is effectively ensured through the cooperation of the multiple sets of upper connecting screws, lower connecting screws, reinforcing screw grooves and reinforcing screw rods, and the practicability of the stator structure is enhanced.

[0014] (2) The multiple cooling grooves formed in the stator core and the through holes formed in the anti-wear gasket can make the top and bottom of the stator core penetrate through ventilation, thereby achieving good heat dissipation and cooling effects.

[0015] (3) The multiple layers of first and second reinforcing ribs are vertically and staggeringly arranged in the interior of the stator core, and the arrangement of the two sets of reinforcing ribs relative to the connecting screw grooves is reasonable, so that the stability of the stator core structure is effectively improved, and the first and second reinforcing ribs and the inner walls of the cooling grooves form a triangular structure, and the two sets of reinforcing ribs are symmetrically distributed along the inner and outer walls of the cooling grooves, so that the support stability of each cooling groove is additionally enhanced, and the support balance of the inner and outer walls of the cooling grooves is ensured.

[0016] (4) The multiple bidirectional limiting strips arranged on the outer wall of the stator core have one side of a round edge and the other side of a right angle edge, and the positions of the round edges and the right angle edges of adjacent bidirectional limiting strips are opposite, so that the bidirectional limiting effect between the stator core and the shell when the stator core is installed in the inner side of the motor shell is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a whole cut structure schematic view of the utility model;

[0019] Figure 3 It is an explosion structure schematic view of the utility model;

[0020] Figure 4 It is an exploded structure schematic view of the connecting screw of the utility model;

[0021] Figure 5 Partially cut structure schematic view of the utility model;

[0022] Figure 6 Two groups of reinforcing ribs space structure schematic view of the utility model.

[0023] In the drawing: 1, stator core;2, winding column;3, winding slot;4, sunken groove;5, anti-wear gasket;6, connecting threaded groove;7, connecting upper screw;8, connecting lower screw;9, reinforcing threaded groove;10, reinforcing screw;11, cooling groove;12, first reinforcing rib;13, second reinforcing rib;14, bidirectional limiting strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0025] Embodiment one: please refer to Figures 1-6 The utility model provides technical scheme as follows: a kind of wear-resistant high-stable stator assembly for new energy automobile motor, including stator core 1, the inner wall of stator core 1 is profiled with the multiple winding columns 2 of circumferential uniform arrangement, and profiled with winding slot 3 between adjacent two winding columns 2, winding column 2 is formed by winding part and clamping part, and winding part is fixedly connected on the inner wall of stator core 1, and clamping part is crescent structure, and the top end and bottom of winding column 2 winding part are provided with sunken groove 4, i.e. compared with clamping part, it is sunken inward, this structure makes when winding in winding slot 3, coil can be clamped in sunken groove 4 first, to prevent coil from coming out, to facilitate winding operation.

[0026] The top end and bottom end of stator core 1 are additionally provided with anti-wear gasket 5, the inside of stator core 1 is provided with multiple connecting threaded grooves 6, the inside top end and bottom end of connecting threaded groove 6 are threadedly connected with connecting upper screw 7 and connecting lower screw 8 respectively, and the two anti-wear gaskets 5 are fixedly installed on the top end and bottom end of stator core 1 by connecting upper screw 7 and connecting lower screw 8, the top end of connecting lower screw 8 is provided with reinforcing threaded groove 9, and the bottom end of connecting upper screw 7 is fixedly connected with reinforcing screw 10, and reinforcing screw 10 is threadedly connected in the inside of reinforcing threaded groove 9, and the direction and spacing of the thread protrusions formed on the outer wall of connecting upper screw 7 and reinforcing screw 10 are same, to realize the synchronous downward screwing connection of connecting upper screw 7 and connecting threaded groove 6, reinforcing screw 10 and reinforcing threaded groove 9.

[0027] The two anti-wear pads 5 are arranged between the stator core 1 and the bearings at the top and bottom of the motor, which can effectively solve the problem that the stator core 1 is rubbed with the bearings at the top and bottom of the motor during operation, thereby improving the wear resistance of the stator structure, and the two anti-wear pads 5 are fixed to the stator core 1 through the threaded connection of a plurality of upper connecting screws 7, lower connecting screws 8 and connecting threaded grooves 6, and each group of upper connecting screws 7 and lower connecting screws 8 is further fixed through the cooperation of reinforcing threaded grooves 9 and reinforcing threaded rods 10, so as to effectively ensure the connection stability of the anti-wear pads 5 and the stator core 1, thereby ensuring the use effect of the stator core 1 and enhancing the practicability of the stator structure.

[0028] In addition, the outer wall of the stator core 1 is formed with a plurality of bidirectional limiting strips 14, one side of which is a round edge and the other side is a right angle edge, and the positions of the round edges and the right angle edges of adjacent bidirectional limiting strips 14 are opposite, and through the special structure of the bidirectional limiting strips 14, the bidirectional limiting effect between the stator core 1 and the shell when the stator core 1 is installed inside the shell can be effectively improved.

[0029] In the embodiment one, a plurality of cooling grooves 11 are arranged on the inner side of the stator core 1 in a circumferential distribution, and the cooling grooves 11 are arranged in an alternating distribution with the connecting threaded grooves 6, and the anti-wear pads 5 are provided with through holes corresponding to the cooling grooves 11, so that the top and bottom of the stator core 1 are ventilated through the cooling grooves 11 and the through holes of the anti-wear pads 5, thereby achieving good heat dissipation and cooling effect.

[0030] In addition, the inside of the stator core 1 is paved with a plurality of layers of first reinforcing ribs 12 and second reinforcing ribs 13 arranged in a vertical staggered distribution, and the first reinforcing ribs 12 and the second reinforcing ribs 13 form a triangular structure with the inner wall of the cooling grooves 11, and through the staggered paving of the plurality of layers of first reinforcing ribs 12 and second reinforcing ribs 13 in the inside of the stator core 1, the stability of the structure of the stator core 1 can be effectively improved, and through the triangular structure formed by the first reinforcing ribs 12, the second reinforcing ribs 13 and the inner wall of the cooling grooves 11, the support stability of each cooling groove 11 can be additionally enhanced, specifically, the first reinforcing ribs 12 bypass the outside of the connecting threaded grooves 6 and abut against the inner side wall of each cooling groove 11, and the second reinforcing ribs 13 are distributed on the inside of the connecting threaded grooves 6 and abut against the outer side wall of each cooling groove 11, and this structure is reasonable relative to the arrangement of the connecting threaded grooves 6, and the first reinforcing ribs 12 and the second reinforcing ribs 13 are symmetrically distributed along the inside and outside of the cooling grooves 11, which can effectively ensure the balanced support of the inner and outer walls of the cooling grooves 11.

[0031] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wear-resistant high-stable stator assembly for new energy vehicle motor, comprising a stator core (1), the inner wall of the stator core (1) is formed with a plurality of winding columns (2), and a winding slot (3) is formed between adjacent two winding columns (2); characterized in that The top end and the bottom end of the stator core (1) are additionally provided with wear-resistant gaskets (5), a plurality of connecting threaded grooves (6) are formed in the inside of the stator core (1), the inside top end and the bottom end of the connecting threaded groove (6) are respectively threadedly connected with a connecting upper screw (7) and a connecting lower screw (8), so that the two wear-resistant gaskets (5) are installed on the stator core (1), the top end of the connecting lower screw (8) is provided with a reinforcing threaded groove (9), the bottom end of the connecting upper screw (7) is connected with a reinforcing screw rod (10), and the reinforcing screw rod (10) is threadedly connected in the inside of the reinforcing threaded groove (9).

2. The high-stable wear-resistant stator assembly for a new energy vehicle motor according to claim 1, characterized in that: The winding column (2) is composed of a winding part and a clamping part, the winding part is fixedly connected to the inner wall of the stator core (1), and the clamping part has a crescent structure, the top end and the bottom of the winding part of the winding column (2) are provided with a sunken groove (4), that is, the clamping part is sunken inward.

3. The high-stable wear-resistant stator assembly for a new energy vehicle motor according to claim 1, characterized in that: The directions and spacings of the thread protrusions formed on the outer walls of the connecting upper screw (7) and the reinforcing screw rod (10) are the same.

4. The high-stable wear-resistant stator assembly for a new energy vehicle motor according to claim 2, characterized in that: The inside of the stator core (1) is provided with a plurality of cooling grooves (11) distributed in a circle, and the cooling grooves (11) and the connecting threaded grooves (6) are distributed alternately, and the wear-resistant gaskets (5) are provided with through holes corresponding to the cooling grooves (11).

5. The high-stable wear-resistant stator assembly for a new energy vehicle motor according to claim 4, characterized in that: The inside of the stator core (1) is provided with a plurality of layers of first reinforcing ribs (12) and second reinforcing ribs (13) distributed vertically and alternately, and the first reinforcing ribs (12) and the second reinforcing ribs (13) form a triangular structure with the inside of the cooling groove (11) and the side wall of the cooling groove (11). 6.The high-stable and wear-resistant stator assembly for a new energy vehicle motor according to claim 5, characterized in that: The first reinforcing rib (12) passes by the outside of the connecting threaded groove (6) and abuts against the inner side wall of each cooling groove (11), and the second reinforcing rib (13) is distributed on the inside of the connecting threaded groove (6) and abuts against the outer side wall of each cooling groove (11).

7. The high-stable wear-resistant stator assembly for a new energy vehicle motor according to claim 5, characterized in that: The outer wall of the stator core (1) is formed with a plurality of bidirectional limiting strips (14), one side of the bidirectional limiting strip (14) is a round edge, and the other side is a right angle edge, and the round edge and the right angle edge of adjacent bidirectional limiting strips (14) are opposite.

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