Stator transition sleeve for automobile window lifting motor

Abstract

The utility model discloses a stator transition sleeve for an automobile window lifting motor, which relates to the technical field of stator transition sleeves and comprises a casing, a transition sleeve body is connected in the casing, and a bottom square boss is connected to the top of the transition sleeve body. A plurality of inner and outer through grooves which are distributed at equal intervals in a circumferential array are formed in the bottom square boss; according to the utility model, the transition sleeve body is fixed in the groove at the bottom of the casing, so that the preliminary positioning of the internal structure of the motor is completed, and the square boss at the bottom of the transition sleeve can assist in positioning, increase the rotation resistance, prevent the transition sleeve from rotating along with a rotor and maintain the stability of the motor structure; internal air circulation is promoted during motor operation, heat dissipation is accelerated, and the performance and the service life of the motor are guaranteed; during assembly, the transition sleeve body can be used as an acting point and an observation point, so that an operator can accurately position, adjust and fix the transition sleeve body, and the assembly efficiency and accuracy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stator transition sleeve technical field, specifically for a kind of stator transition sleeve for automobile window motor. BACKGROUND

[0002] In the field of automobile manufacturing, as the key component for realizing the function of window lifting, the performance and reliability of window motor are crucial. The traditional window motor is mainly composed of a stator, a rotor and a box body. The bottom of the machine shell is provided with a groove for assembling the transition sleeve. The rotor is assembled with the ball bearing in the transition sleeve to realize rotation.

[0003] During the operation of the motor, a pair of magnetic tiles in the stator generates a magnetic field, driving the rotor to rotate and providing power for the window lifting. However, the existing transition sleeve structure has many problems. The transition sleeve designed in the early stage is usually directly assembled in the machine shell, which makes it difficult to fix the transition sleeve stably during the operation of the motor. Since the window is lifted, the motor may be subjected to various vibrations and external forces. The transition sleeve lacking effective fixation is prone to falling off, which will cause damage to the internal structure of the motor and directly affect the normal lifting function of the window.

[0004] Therefore, we designed a stator transition sleeve for automobile window motor to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a stator transition sleeve for automobile window motor to solve the problems raised in the background technology.

[0006] To solve the above technical problems, the utility model provides a stator transition sleeve for automobile window motor, which comprises a machine shell, a transition sleeve body connected in the machine shell, a bottom square boss connected at the top of the transition sleeve body, and a plurality of internal and external grooves distributed at equal intervals in a circular array formed on the bottom square boss.

[0007] Further, a bottom groove is formed on one side of the transition sleeve body, and the bottom groove is arranged on the same side as the bottom square boss.

[0008] Further, the shape of the bottom groove is semilunar, and the number of the bottom groove is three.

[0009] Further, a rotor is rotatably connected in the machine shell, a ball bearing is arranged on the rotor, and the ball bearing is in interference fit with the rotor.

[0010] Further, the ball bearing is arranged in the transition sleeve body, and the ball bearing is in clearance fit with the transition sleeve body.

[0011] Further, the positioning lug is connected to one side of the transition sleeve body away from the bottom square boss.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The transition sleeve body is fixed to the bottom groove of the shell, and the preliminary positioning of the internal structure of the motor is completed, the bottom square boss can assist positioning and increase the rotational resistance, prevent the transition sleeve from rotating with the rotor, and maintain the stability of the motor structure, in addition, the plurality of internal and external through grooves on the bottom square boss promote the internal air circulation and accelerate heat dissipation when the motor operates, and the motor performance and service life are guaranteed, and when assembling, the bottom square boss can be used as a force point and an observation point, so that the operator can accurately position, adjust and fix the transition sleeve body, and the assembly efficiency and accuracy are improved.

[0014] The bottom groove is provided as an additional reference point when the transition sleeve body is installed, whether the assembly worker manually operates or the automatic assembly equipment operates, the position of the bottom groove can be recognized, and the transition sleeve body can be more accurately installed to the corresponding position of the bottom of the shell, the assembly precision and efficiency are improved, and when the motor operates, the bottom groove provided on the same side of the bottom square boss can change the stress distribution on the side of the transition sleeve body, act as a buffer structure of the stress concentration area, effectively disperse the stress, and avoid damage of the transition sleeve due to stress concentration. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the transition sleeve body in the utility model;

[0016] Figure 2 It is a front view of the transition sleeve body in the utility model;

[0017] Figure 3 It is a connection structure schematic view of the transition sleeve body and the shell in the utility model;

[0018] Figure 4 It is a side view of the transition sleeve body in the utility model.

[0019] In the drawing: 1, transition sleeve body; 2, positioning lug; 3, internal and external through groove; 4, ball bearing; 5, bottom groove; 6, bottom square boss; 7, shell. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and 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 labor fall within the protection scope of the utility model.

[0021] Referring to Figures 1-4 As shown in the figure, a stator transition sleeve for a car window motor, comprising a shell 7, a transition sleeve body 1 is connected in the shell 7, a bottom square boss 6 is connected at the top of the transition sleeve body 1, and a plurality of internal and external through grooves 3 are arranged in a circumferential array on the bottom square boss 6.

[0022] In specific implementation, the transition sleeve body 1 is fixed in the groove at the bottom of the shell 7 to realize the preliminary positioning of the internal structure of the motor. In addition to the positioning function, the bottom square boss 6 arranged on the transition sleeve body 1 further increases the resistance to rotation of the transition sleeve. When the motor is running and the rotor rotates under the driving of the magnetic field, the bottom square boss 6 can effectively prevent the transition sleeve from rotating with the rotor, thereby maintaining the stability of the internal structure of the motor. The plurality of internal and external through grooves 3 arranged in a circumferential array on the bottom square boss 6 have two functions. Firstly, when heat is generated during the operation of the motor, the internal and external through grooves 3 promote the circulation of air inside the shell 7, accelerate heat exchange, realize heat dissipation and cooling, and avoid the influence of overheating on the performance and service life of the motor. Secondly, in the assembly process, the internal and external through grooves 3 can be used as a force point or an observation point to facilitate the positioning, adjustment and fixation of the transition sleeve body 1 by the operator, thereby improving the assembly efficiency and accuracy.

[0023] Referring to Figure 1 A bottom groove 5 is arranged on one side of the transition sleeve body 1, and the bottom groove 5 is arranged on the same side as the bottom square boss 6.

[0024] In specific implementation, when the transition sleeve body 1 is installed into the shell 7, the bottom groove 5 can be used as an additional reference point. The assembly worker or automatic assembly equipment can more accurately place the transition sleeve body 1 at the corresponding position at the bottom of the shell 7 by identifying the position of the bottom groove 5. During the operation of the motor, various forces will be generated, including vibration, torque, etc. The bottom groove 5 and the bottom square boss 6 are arranged on the same side, which can change the stress distribution on that side of the transition sleeve body 1 to a certain extent. When subjected to external force, the bottom groove 5 can be used as a buffer structure of the stress concentration area.

[0025] Referring to Figure 1 The shape of the bottom groove 5 is semicircular, and the number of the bottom grooves 5 is three.

[0026] In specific implementation, the curved shape of the semicircular bottom groove 5 gives the transition sleeve certain structural toughness. When responding to external force impact, the curve of the bottom groove 5 can absorb part of the energy and relieve the impact force through its elastic deformation, so that the transition sleeve can better adapt to various mechanical changes during the operation of the motor without permanent deformation.

[0027] Referring to Figure 3 A rotor is rotatably connected in the shell 7, and a ball bearing 4 is arranged on the rotor, and the ball bearing 4 is in interference fit with the rotor.

[0028] In particular implementation, the rolling balls inside the ball bearing 4 roll between the inner and outer rings, greatly reducing the friction when the rotor rotates.

[0029] Reference Figure 3 The ball bearing 4 is arranged in the transition sleeve body 1, and the ball bearing 4 is in clearance fit with the transition sleeve body 1.

[0030] In particular implementation, the clearance fit provides favorable conditions for lubrication of the ball bearing 4. An appropriate amount of lubricant can be filled in the clearance between the ball bearing 4 and the transition sleeve body 1 to form an oil film.

[0031] Reference Figure 1 The transition sleeve body 1 is connected with the positioning lug 2 away from the side of the bottom square boss 6.

[0032] In particular implementation, when the transition sleeve body 1 is installed into the casing 7, the positioning lug 2 cooperates with the positioning structure in the casing 7, so that the transition sleeve body 1 can quickly and accurately find its preset position in the casing 7 during installation, improving the assembly efficiency.

[0033] Working principle: The transition sleeve body 1 is fixed in the groove at the bottom of the casing 7 to realize preliminary positioning of the internal structure of the motor. In addition to the positioning function, the bottom square boss 6 arranged on the transition sleeve body 1 further increases the resistance to rotation of the transition sleeve. When the motor is running, the bottom square boss 6 can effectively prevent the transition sleeve from rotating with the rotor, maintaining the stability of the internal structure of the motor. The plurality of inner and outer through grooves 3 arranged in a circumferential array at equal intervals on the bottom square boss 6 can promote air circulation inside the casing 7 to accelerate heat exchange and achieve heat dissipation and cooling when the motor generates heat, avoiding the influence of overheating on the performance and service life of the motor. In addition, the inner and outer through grooves 3 can be used as a force point or observation point during assembly, facilitating the positioning, adjustment and fixation of the transition sleeve body 1 by the operator, improving the assembly efficiency and accuracy.

[0034] When the transition sleeve body 1 is installed into the casing 7, the bottom groove 5 can be used as an additional reference point. The assembly worker or automatic assembly equipment can place the transition sleeve body 1 at the corresponding position at the bottom of the casing 7 more accurately by identifying the position of the bottom groove 5. During the operation of the motor, various forces will be generated, including vibration and torque. The bottom groove 5 is arranged on the same side as the bottom square boss 6, which can change the stress distribution on that side of the transition sleeve body 1 to a certain extent. When subjected to external force, the bottom groove 5 can be used as a buffer structure of the stress concentration area.

[0035] The curved shape of the semi-lunar bottom groove 5 gives the transition sleeve certain structural flexibility. When responding to external force impact, the curve of the bottom groove 5 can absorb part of the energy, relieve the impact force through its elastic deformation, and make the transition sleeve better adapt to various mechanical changes in the motor operation process without permanent deformation.

Claims

1. A stator transition sleeve for a motor for automotive window regulator, comprising a housing (7), characterized in that, A transition sleeve body (1) is connected in the casing (7), a bottom square boss (6) is connected to the top of the transition sleeve body (1), and a plurality of inner and outer through grooves (3) are arranged in a circumferential array on the bottom square boss (6).

2. A stator transition sleeve for an automotive window regulator motor as claimed in claim 1, characterized in that: A bottom groove (5) is arranged on one side of the transition sleeve body (1), and the bottom groove (5) is arranged on the same side of the bottom square boss (6).

3. A stator transition sleeve for an automotive window regulator motor as claimed in claim 2, characterized in that: The bottom groove (5) is semilunar in shape, and the number of the bottom groove (5) is three.

4. A stator transition sleeve for an automotive window regulator motor as defined in claim 1, wherein: A rotor is rotatably connected in the casing (7), a ball bearing (4) is arranged on the rotor, and the ball bearing (4) is in interference fit with the rotor.

5. A stator transition sleeve for an automotive window regulator motor as claimed in claim 4, characterized in that: The ball bearing (4) is arranged in the transition sleeve body (1), and the ball bearing (4) is in clearance fit with the transition sleeve body (1).

6. A stator transition sleeve for an automotive window regulator motor as defined in claim 1, wherein: A positioning lug (2) is connected to the side of the transition sleeve body (1) away from the bottom square boss (6).

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