Convenient-to-assemble shell structure of small motor

Abstract

The shell structure comprises a first aluminum alloy outer cylinder and a second aluminum alloy outer cylinder, a rotating linkage disc is arranged in the middle of an inner cavity of the second aluminum alloy outer cylinder, one end of the rotating linkage disc is fixedly connected with a flat key shaft sleeve, a flat key linkage shaft is installed in the flat key shaft sleeve, and the flat key linkage shaft is fixedly connected with the rotating linkage disc. A flat key linkage shaft is arranged at the top end of the first aluminum alloy outer cylinder, a miniature Roots fan is arranged at one end of the flat key linkage shaft, an output shaft inserting sleeve is arranged at one end of the miniature Roots fan, and a protruding connecting part is fixedly arranged at the top end of the first aluminum alloy outer cylinder. The motor output shaft can be conveniently installed and connected, the miniature Roots fan can be driven to rotate and generate air flow under the condition that the output shaft rotates, the flow speed of the air flow in the shell is increased, heat can be conveniently and rapidly blown out, good heat dissipation performance is achieved, the transmission heat dissipation mode depending on heat conduction is changed, and efficient heat dissipation performance is achieved.

Description

Technical Field

[0001] The utility model relates to a shell structure of a small motor which is easy to assemble and belongs to the technical field of motor shells. Background Art

[0002] A motor refers to an electromagnetic device that realizes electric energy conversion or transmission according to the law of electromagnetic induction. The motor housing is a component of the motor. Patent No. CN202120006919.7 discloses a small motor housing, which belongs to the field of small motor technology, including a housing, and the housing includes a movably connected connecting shell one and a connecting shell two. The outer surface of the connecting shell one is fixedly connected with a fixing ring, and the fixing ring and the connecting shell two are connected by a bolt one. An insulating sleeve is installed inside the connecting shell one, and a vent is provided on the insulating sleeve. A heat dissipation hole is provided at a position opposite to the vent, and a dust filter is installed inside the heat dissipation hole. An axial hole is provided on the right side of the connecting shell one; a threaded connecting shell one and a connecting shell two are provided, and a pair of bolts are used to lock and fix the connecting shell two and the fixing ring, so as to realize the assembly and fixation of the housing. The structure is simple, the operation is convenient, and it is convenient for later disassembly and maintenance. The setting of the heat dissipation hole and the setting of the heat conductive copper sleeve can quickly conduct the heat inside the housing, effectively improving the heat dissipation efficiency.

[0003] The disadvantage of the motor housing disclosed above is that it is inconvenient to assemble and has the disadvantage of inconvenient heat dissipation. The heat dissipation holes are set in combination with the heat-conducting copper sleeve and heat is dissipated by heat conduction. The heat dissipation by heat conduction is limited by the housing material and the stability of the surrounding environment, and efficient heat dissipation cannot be ensured. Therefore, we design a housing structure of a small motor that is easy to assemble. Utility Model Content

[0004] The purpose of the utility model is to provide a housing structure of a small motor which is easy to assemble, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a housing structure of a small motor that is easy to assemble, comprising a first aluminum alloy outer cylinder, a second aluminum alloy outer cylinder and a threaded connection end, wherein the top opening of the second aluminum alloy outer cylinder is threadedly connected to the first aluminum alloy outer cylinder through the threaded connection end;

[0006] A rotating coupling disk is arranged in the middle of the inner cavity of the second aluminum alloy outer cylinder, one end of the rotating coupling disk is fixedly connected with a flat key sleeve, a flat key linkage shaft is installed inside the flat key sleeve, a miniature Roots fan is arranged at one end of the flat key linkage shaft, an output shaft plug-in sleeve is arranged at one end of the miniature Roots fan, a raised connecting portion is fixedly arranged at the top end of the first aluminum alloy outer cylinder, and an output shaft connecting ring is arranged at the top opening of the raised connecting portion.

[0007] In the above-mentioned shell structure of the small motor which is easy to assemble, a circular bayonet corresponding to the raised connecting portion is provided in the middle of the top end of the first aluminum alloy outer cylinder, an output shaft lubricating sleeve is installed inside the circular bayonet, a step hole is provided inside the output shaft lubricating sleeve and a solid lubricating oil block is placed inside the step hole.

[0008] In the above-mentioned housing structure of the small motor which is easy to assemble, a dustproof and breathable membrane is fixedly installed on the top of the inner cavity of the first aluminum alloy outer cylinder, and an output shaft interlaced rubber ring is arranged at the center of the dustproof and breathable membrane.

[0009] In the above-mentioned housing structure of the small motor which is easy to assemble, a through hole is arranged at the center of the output shaft lubrication sleeve, and the through hole and the output shaft connecting ring are located on the same central axis.

[0010] In the above-mentioned shell structure of the small motor which is easy to assemble, the top end of the first aluminum alloy outer cylinder is provided with a plurality of air-permeable holes which are distributed in a ring shape and are centered on the circular bayonet.

[0011] In the above-mentioned housing structure of the small motor which is easy to assemble, a sealing tape connected to the first aluminum alloy outer cylinder and the second aluminum alloy outer cylinder is provided at the thread groove of the threaded connection end.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has a shell structure of a small motor which is easy to assemble. A threaded connection end is provided so that a first aluminum alloy outer cylinder and a second aluminum alloy outer cylinder are threadedly connected together, and a rotating coupling plate, a flat key shaft sleeve, a flat key linkage shaft, an output shaft plug sleeve, and a micro-Roots fan are provided, so that the installation and connection of the motor output shaft are convenient, and the micro-Roots fan can be driven to rotate when the output shaft rotates, so that airflow is generated, so that the airflow velocity inside the shell is accelerated, and heat is blown out quickly, so as to achieve good heat dissipation performance, change the heat dissipation mode of the transmission relying on heat conduction, and have high-efficiency heat dissipation performance; by providing an output shaft lubrication sleeve and a solid lubricating oil block inside the circular bayonet, the output shaft is conveniently lubricated, and the wear of the output shaft during rotation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of the shell structure of the small motor which is easy to assemble.

[0015] Figure 2 The utility model is a schematic structural diagram of the first aluminum alloy outer cylinder of the housing structure of the small motor which is easy to assemble.

[0016] Figure 3The utility model is a schematic diagram of the structure of the second aluminum alloy outer cylinder of the housing structure of the small motor which is easy to assemble.

[0017] In the figure: 1. first aluminum alloy outer cylinder; 2. second aluminum alloy outer cylinder; 3. threaded connection end; 4. ventilation hole; 5. raised connection part; 6. output shaft connecting ring; 7. rotating coupling plate; 8. flat key bushing; 9. flat key linkage shaft; 10. output shaft plug-in sleeve; 11. micro Roots fan; 12. circular bayonet; 13. dustproof and breathable membrane; 14. solid lubricating oil block; 15. output shaft lubricating sleeve; 16. output shaft interlaced rubber ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution for a housing structure of a small motor that is easy to assemble:

[0020] Embodiment 1: A housing structure of a small motor that is easy to assemble, comprising a first aluminum alloy outer cylinder 1, a second aluminum alloy outer cylinder 2 and a threaded connection end 3, wherein the top opening of the second aluminum alloy outer cylinder 2 is threadedly connected to the first aluminum alloy outer cylinder 1 through the threaded connection end 3;

[0021] like Figure 3 and Figure 1 As shown, a rotating coupling disk 7 is provided in the middle of the inner cavity of the second aluminum alloy outer cylinder 2, one end of the rotating coupling disk 7 is fixedly connected to a flat key sleeve 8, a flat key linkage shaft 9 is installed inside the flat key sleeve 8, a miniature Roots fan 11 is provided at one end of the flat key linkage shaft 9, and an output shaft plug-in sleeve 10 is provided at one end of the miniature Roots fan 11.

[0022] The top of the first aluminum alloy outer cylinder 1 is provided with a plurality of air-permeable holes 4 distributed in an annular pattern with the circular bayonet 12 as the center.

[0023] The structural advantages of the above design are: it is convenient to install and connect the motor output shaft, and can drive the micro-Roots fan 11 to rotate when the output shaft rotates, generating air flow, so that the air flow rate inside the shell is accelerated, which is convenient for quickly blowing out the heat, achieving good heat dissipation performance, changing the transmission's heat dissipation method that relies on heat conduction, and having efficient heat dissipation performance.

[0024] A raised connection portion 5 is fixedly provided at the top end of the first aluminum alloy outer cylinder 1, and an output shaft connecting ring 6 is provided at the top opening of the raised connection portion 5; a circular bayonet 12 corresponding to the raised connection portion 5 is provided in the middle of the top end of the first aluminum alloy outer cylinder 1, and an output shaft lubricating sleeve 15 is mounted inside the circular bayonet 12, and a step hole is provided inside the output shaft lubricating sleeve 15, and a solid lubricating oil block 14 is placed inside the step hole; a perforation position is provided at the center of the output shaft lubricating sleeve 15, and the perforation position and the output shaft connecting ring 6 are on the same central axis.

[0025] The structural advantages of the above design are: it is easy to lubricate the output shaft and reduce the wear of the output shaft during rotation.

[0026] In this embodiment, in order to prevent dust from entering through the vent hole 4 and not affect the installation and connection of the output shaft, a dustproof and breathable membrane 13 is fixedly installed on the top of the inner cavity of the first aluminum alloy outer cylinder 1, and an output shaft interlaced rubber ring 16 is arranged at the center of the dustproof and breathable membrane 13;

[0027] In this embodiment, in order to improve the connection sealing performance between the first aluminum alloy outer cylinder 1 and the second aluminum alloy outer cylinder 2 , a sealing tape connected to the first aluminum alloy outer cylinder 1 and the second aluminum alloy outer cylinder 2 is provided at the thread groove of the threaded connection end 3 .

[0028] Working principle: the small motor housing of the utility model is composed of a first aluminum alloy outer cylinder 1 and a second aluminum alloy outer cylinder 2. The top opening of the second aluminum alloy outer cylinder 2 is threadedly connected to the first aluminum alloy outer cylinder 1 through a threaded connection end 3. A rotating coupling disk 7 is arranged in the middle of the inner cavity of the second aluminum alloy outer cylinder 2. The flat key shaft sleeve 8 of the rotating coupling disk 7 is connected to the flat key linkage shaft 9. A micro-Roots fan 11 is arranged at one end of the flat key linkage shaft 9. An output shaft plug-in sleeve 10 is arranged at one end of the micro-Roots fan 11, which can be connected to the output shaft, so that the output shaft drives the micro-Roots fan 11 to rotate during the rotation process, generates airflow, and accelerates the airflow velocity inside the shell, which is convenient for quickly blowing out the heat, and has good heat dissipation performance, changes the heat dissipation mode of the transmission relying on heat conduction, and has efficient heat dissipation performance.

[0029] A raised connection part 5 is fixedly arranged at the top end of the first aluminum alloy outer cylinder 1, and an output shaft connecting ring 6 is arranged at the top opening of the raised connection part 5; a circular bayonet 12 corresponding to the raised connection part 5 is arranged in the middle of the top end of the first aluminum alloy outer cylinder 1, and an output shaft lubricating sleeve 15 is installed through the circular bayonet 12, and a step hole is arranged inside the output shaft lubricating sleeve 15 and a solid lubricating oil block 14 is placed inside the step hole; it can achieve a good lubrication effect and reduce the wear of the output shaft.

[0030] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A housing structure of a small motor that is easy to assemble, comprising a first aluminum alloy outer cylinder (1), a second aluminum alloy outer cylinder (2) and a threaded connection end (3), characterized in that: The top opening of the second aluminum alloy outer cylinder (2) is threadedly connected to the first aluminum alloy outer cylinder (1) via a threaded connection end (3); A rotating coupling disc (7) is arranged in the middle of the inner cavity of the second aluminum alloy outer cylinder (2), one end of the rotating coupling disc (7) is fixedly connected to a flat key sleeve (8), a flat key linkage shaft (9) is installed inside the flat key sleeve (8), one end of the flat key linkage shaft (9) is arranged to a micro Roots fan (11), one end of the micro Roots fan (11) is arranged to an output shaft plug sleeve (10), and a protruding connection portion (5) is fixedly arranged at the top end of the first aluminum alloy outer cylinder (1), and an output shaft connecting ring (6) is arranged at the top opening of the protruding connection portion (5).

2. The housing structure of a small motor that is easy to assemble according to claim 1 is characterized in that: A circular bayonet (12) corresponding to the raised connection portion (5) is provided in the middle of the top end of the first aluminum alloy outer cylinder (1), an output shaft lubricating sleeve (15) is mounted in the circular bayonet (12), a step hole is provided in the output shaft lubricating sleeve (15), and a solid lubricating oil block (14) is placed in the step hole.

3. The housing structure of a small motor that is easy to assemble according to claim 1 is characterized in that: A dustproof and breathable membrane (13) is fixedly mounted on the top of the inner cavity of the first aluminum alloy outer cylinder (1), and an output shaft interlaced rubber ring (16) is arranged at the center of the dustproof and breathable membrane (13).

4. The housing structure of a small motor that is easy to assemble according to claim 2 is characterized in that: A perforation is provided at the center of the output shaft lubricating sleeve (15), and the perforation and the output shaft connecting ring (6) are located on the same central axis.

5. The housing structure of a small motor that is easy to assemble according to claim 2 is characterized in that: The top end of the first aluminum alloy outer cylinder (1) is provided with a plurality of air-permeable holes (4) distributed in an annular pattern with the circular bayonet (12) as the center.

6. The housing structure of a small motor that is easy to assemble according to claim 1 is characterized in that: A sealing tape connected to the first aluminum alloy outer cylinder (1) and the second aluminum alloy outer cylinder (2) is provided at the thread groove of the threaded connection end (3).

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