Motor strength enhancing structure for multiple scenes

Abstract

The utility model discloses a motor strength enhancing structure for multiple scenes. The motor strength enhancing structure comprises a stator assembly, a rotor assembly and a rotating shaft. The rotor assembly sleeves the outer wall of the stator assembly; the middle of the rotor assembly is in interference fit connection with a rotating shaft which is rotationally connected to the middle of the stator assembly. The stator assembly comprises a stator assembly main body and a plastic package shell; the stator assembly main body is mounted in a groove formed in the plastic package shell, and the bottom of the plastic package shell extends outwards to form a base; the outer wall of the base exceeds the periphery of the rotor assembly; the edge part of the base extends upwards and at least extends to the middle part of the rotor assembly to form a protective shell; the upper part of the outer wall of the protective shell is fixedly connected with a plurality of mounting plates which are suitable for multi-scene installation.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor field, concretely for a kind of structure for enhancing motor strength in multiple scenes. BACKGROUND

[0002] CN221177376U discloses a kind of BMC material plastic package direct current brushless motor structure, including plastic package stator structure, rotor assembly and fixed screw;Rotor assembly is sleeved in the outer periphery of plastic package stator structure, and rotor assembly middle part is inserted with rotating shaft by interference fit, so that rotor assembly drives rotating shaft to rotate, rotating shaft is rotationally connected in the middle part of plastic package stator structure, and the end of rotating shaft close to plastic package stator structure is equipped with threaded inner hole, for bolt connection with fixed screw, limit plastic package stator structure and rotor assembly position;The plastic package base extends at least a pair of mounting feet outward, for installation or positioning.

[0003] The above-mentioned "mounting foot" is installed on the outer periphery of the "plastic package base" and is symmetrically distributed. However, when used in an exposed environment, the connection may become loose after a long time of fixation due to the complex and variable external environment. In addition, the "end cover" is almost entirely exposed to the outside, and after a long time of weathering, it becomes easily broken, causing damage to the motor and shortening the service life. Therefore, the utility model provides a structure for enhancing the strength of the motor. UTILITY MODEL CONTENT

[0004] The utility model is aimed at providing a structure for enhancing the strength of the motor in multiple scenes to solve the problem of short service life mentioned in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A structure for enhancing the strength of the motor includes a stator assembly, a rotor assembly and a rotating shaft. The rotor assembly is sleeved on the outer wall of the stator assembly. The rotor assembly middle part is connected with the rotating shaft by interference fit, and the rotating shaft is rotationally connected in the middle part of the stator assembly.

[0007] The stator assembly includes a stator assembly main body and a plastic package shell. The stator assembly main body is installed in the groove of the plastic package shell, and the bottom of the plastic package shell extends outward to form a base.

[0008] The outer wall of the base exceeds the outer periphery of the rotor assembly. The edge part of the base extends upward and at least to the middle part of the rotor assembly, forming a protective shell. A plurality of mounting plates are fixedly connected to the upper part of the outer wall of the protective shell.

[0009] Preferably, an installation groove is formed between the inner wall of the protective shell and the outer wall of the plastic package shell to match the bottom of the rotor assembly.

[0010] Preferably, the distance between the inner and outer sides of the protective shell is at least greater than the distance of the opposite side walls of the installation groove.

[0011] Preferably, the distance between the bottom side wall of the mounting groove and the base is at least greater than one third of the height of the rotor assembly.

[0012] Preferably, the plastic sealing shell, the base and the protective shell are integrally injection molded.

[0013] Preferably, the mounting plate is annularly distributed along the outer wall of the protective shell, and the distance between the upper side and the lower side is at least equal to one half of the height of the protective shell.

[0014] Compared with the prior art, the utility model has the beneficial effects that: the base is extended upward to the outer periphery of the rotor assembly, the mounting groove formed can be used for embedding the rotor assembly, the height of the protective shell is greatly increased, the rotor assembly can be protected outside the rotor assembly, the rotor assembly is prevented from being subjected to potential external impact, and the service life is improved.

[0015] Meanwhile, the protective shell can first resist external weathering, prolong and weaken the weathering effect on the outer wall of the rotor assembly; the thickness of the protective shell and the width of the mounting plate can also greatly improve the weathering resistance, and provide long-term protection for the rotor assembly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic view of the utility model;

[0017] Fig. 2 is an internal cross-sectional view of the utility model;

[0018] In the figure: 10 is a stator assembly, 11 is a rotor assembly, 12 is a rotating shaft, 101 is a stator assembly body, 102 is a plastic sealing shell, 103 is a base, 104 is a protective shell, and 105 is a mounting plate. DETAILED DESCRIPTION

[0019] Example 1:

[0020] Please refer to Figs. 1-2 The utility model provides a technical scheme: a structure for enhancing the strength of a motor, which comprises a stator assembly 10, a rotor assembly 11 and a rotating shaft 12. The rotor assembly 11 is sleeved on the outer wall of the stator assembly 10; the middle part of the rotor assembly 11 is connected to the rotating shaft 12 in an interference fit, and the rotating shaft 12 is rotatably connected to the middle part of the stator assembly 10.

[0021] The stator assembly 10 comprises a stator assembly body 101 and a plastic sealing shell 102. The stator assembly body 101 is installed in the groove formed in the plastic sealing shell 102, and the bottom of the plastic sealing shell 102 extends outward to form a base 103;

[0022] The outer wall of the base 103 exceeds the outer circumference of the rotor assembly 11; the edge of the base 103 extends upward and extends at least to the middle of the rotor assembly 11, forming a protective shell 104 for protecting the rotor assembly 11. The inner wall of the protective shell 104 and the outer wall of the plastic package shell 102 form an installation groove to match the bottom of the rotor assembly 11. The distance between the inner and outer walls of the protective shell 104 is at least greater than the distance between the opposite side walls of the installation groove, so as to improve the structural strength of the protective shell 104; prolong the service life, and at the same time, first resist the impact of potential external objects, avoid impact on the rotor assembly 11, and protect the outer wall of the rotor assembly 11. The distance between the bottom side wall of the installation groove and the base 103 is at least greater than one-third of the height of the rotor assembly 11, so as to improve the impact resistance and ensure the structural stability of the stator assembly main body 101 and the rotor assembly 11 in the plastic package shell 102, and reduce the occurrence of failures. The plastic package shell 102, the base 103 and the protective shell 104 are integrally injection molded. A plurality of mounting plates 105 are fixedly connected to the upper part of the outer wall of the protective shell 104. The mounting plate 105 is preferably triangular; the number of mounting plates 105 is preferably 8, the mounting plates 105 are distributed in a ring shape along the outer wall of the protective shell 104, and the distance between the upper and lower sides is at least equal to one-half of the height of the protective shell 104, so that the mounting plate 105 is more firmly connected to the outside.

[0023] Embodiment 2

[0024] On the basis of embodiment 1, at least two pairs of mounting plates 105 are connected together, and symmetrically distributed with the protective shell 104 fixedly connected; at least two mounting plates 105 are symmetrically distributed with the two mounting plates 105 connected together as the center; so as to make the connection more firm.

Claims

1. A structure for enhancing motor strength in multiple scenarios, characterized in that: It includes a stator assembly (10), a rotor assembly (11), and a rotating shaft (12); the rotor assembly (11) is sleeved on the outer wall of the stator assembly (10); the rotating shaft (12) is interference-fitted to the middle of the rotor assembly (11), and the rotating shaft (12) is rotatably connected to the middle of the stator assembly (10); The stator assembly (10) includes a stator assembly body (101) and a plastic encapsulation shell (102); the stator assembly body (101) is installed in a groove in the plastic encapsulation shell (102), and the bottom of the plastic encapsulation shell (102) extends outward to form a base (103). The outer wall of the base (103) extends beyond the outer periphery of the rotor assembly (11); the edge of the base (103) extends upward and at least to the middle of the rotor assembly (11) to form a protective shell (104); a plurality of mounting plates (105) are fixedly connected to the upper part of the outer wall of the protective shell (104).

2. The structure for enhancing motor strength in multiple scenarios according to claim 1, characterized in that: An mounting groove is formed between the inner wall of the protective shell (104) and the outer wall of the plastic seal (102) to match the bottom of the rotor assembly (11).

3. The structure for enhancing motor strength in multiple scenarios according to claim 2, characterized in that: The distance between the inner and outer sides of the protective shell (104) is at least greater than the distance between the opposite sidewalls of the mounting groove.

4. The structure for enhancing motor strength in multiple scenarios according to claim 2, characterized in that: The distance from the bottom sidewall of the mounting slot to the base (103) is at least one-third the height of the rotor assembly (11).

5. The structure for enhancing motor strength in multiple scenarios according to claim 2, characterized in that: The plastic seal (102), base (103) and protective shell (104) are integrally injection molded.

6. The structure for enhancing motor strength in multiple scenarios according to claim 2, characterized in that: The mounting plate (105) is distributed in a ring along the outer wall of the protective shell (104), and the distance between the upper and lower sides is at least equal to half the height of the protective shell (104).

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