Motor casing with quick connection structure

Abstract

The utility model discloses a motor casing with a quick connection structure. Comprising a main body shell, a connecting shell and a rear cover fan cover, the connecting shell is located between the main body shell and the rear cover fan cover, an upper limiting cavity and a lower limiting cavity are formed in the inner wall of the connecting shell, and the main body shell is elastically and telescopically connected with the upper limiting cavity through a first connecting piece; the rear cover fan cover is elastically and telescopically connected with the lower limiting cavity through a second connecting piece, the part, located in the connecting shell, of the rear cover fan cover is matched with the inclined face of the first connecting piece, after the rear cover fan cover is pressed downwards, the first connecting piece moves in the radial direction and is separated from the connecting shell, and the connecting shell is separated from the main body shell. According to the motor shell with the quick connection structure, the technical problems that in the design of a common motor shell in the current market, the shell dismounting process is often tedious and complex, accurate alignment is needed during reinstallation, and operation is inconvenient are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to an electric machine shell with a quick connection structure. BACKGROUND

[0002] In the daily operation of electric machines, the electric machine shell plays a crucial protective role, as it not only effectively prevents adverse effects of the external environment on the internal structure of the electric machine, but also plays a key role in maintaining the stable operation of the electric machine. Typically, the electric machine shell is made of cast iron, aluminum alloy or other metal materials, and is equipped with heat dissipation holes or ventilation openings to ensure the heat dissipation and ventilation needs of the electric machine during operation.

[0003] However, in actual use, dust tends to accumulate inside the electric machine shell. When dust enters the interior of the shell, especially adheres to the fan, it can cause a number of problems. On the one hand, dust increases the frictional resistance of the internal operation of the electric machine, leading to an increase in its energy consumption and reducing its operating efficiency; on the other hand, long-term accumulation of dust can also cause damage to the internal structure of the electric machine, such as accelerating the wear of the rotor and stator, thereby shortening the service life of the electric machine. Therefore, it is necessary to regularly clean and maintain the interior of the electric machine shell, especially the fan.

[0004] Currently, the commonly seen electric machine shells on the market are often designed with a relatively cumbersome and complex shell disassembly process. Some electric machine shells use a large number of screws for fastening, which requires a lot of time to unscrew the screws one by one when disassembling, and also needs precise alignment when reinstalling, which is inconvenient to operate; some electric machine shells are designed with an integrated design or a complex buckle structure, which is extremely difficult to disassemble, and may even cause irreversible damage to the shell during disassembly. Such inconvenient shell disassembly design makes it difficult to efficiently clean the internal fan of the electric machine, greatly increasing the difficulty and cost of electric machine maintenance, and limiting the timeliness and effectiveness of electric machine maintenance, which cannot meet the needs of users for convenient maintenance of electric machines.

[0005] Therefore, it is necessary to provide an electric machine shell with a quick connection structure to solve the above problems. SUMMARY

[0006] Based on the above problems existing in the prior art, the purpose of the present application is to provide an electric machine shell with a quick connection structure to solve the problems raised in the background art.

[0007] The technical scheme adopted by the application to solve its technical problems is: a motor casing with a quick connection structure, comprising a main body casing, a connecting casing and a rear cover wind cover, the connecting casing is located between the main body casing and the rear cover wind cover, an upper limiting cavity and a lower limiting cavity are formed in the inner wall of the connecting casing, the main body casing is elastically connected with the upper limiting cavity through a first connecting piece, the rear cover wind cover is elastically connected with the lower limiting cavity through a second connecting piece, the part of the rear cover wind cover located in the connecting casing is matched with the inclined surface of the first connecting piece, and the first connecting piece moves radially and is separated from the connecting casing when the rear cover wind cover is pressed down, so that the connecting casing is separated from the main body casing.

[0008] Further, a working cavity for mounting a motor stator and rotor is arranged in the main body casing, a sliding cavity penetrating through the wall surface close to the bottom of the main body casing is formed, the first connecting piece is located in the sliding cavity, and a stepped surface is formed on the main body casing close to the inner side of the sliding cavity.

[0009] Further, the first connecting piece comprises a sliding block and a first spring, the outer wall of the sliding block extends outwardly to form a limiting portion, one end of the first spring abuts against the limiting portion, and the other end abuts against the stepped surface on the main body casing.

[0010] Further, the outer side of the sliding block has a first inclined surface gradually inclined inwardly.

[0011] Further, the bottom of the sliding block is provided with a movable cavity opening downwardly, and the wall surface close to the working cavity gradually inclines inwardly from top to bottom to form a second inclined surface.

[0012] Further, the rear cover wind cover is provided with a fan mounting area extending downwardly and communicating with the working cavity, and notches are symmetrically formed in the outer peripheral wall of the rear cover wind cover.

[0013] Further, the second connecting piece comprises a second spring and a clamping block, one end of the second spring abuts against the lower limiting cavity, and the other end abuts against the outer end of the clamping block, and the inner end of the clamping block is matched with the notch.

[0014] Further, two supporting legs are upwardly extended from the top of the rear cover wind cover, the supporting legs are aligned with the movable cavity, a chamfered portion is formed in the top end of the supporting leg close to one side of the second inclined surface, the chamfered portion is consistent with the angle of the second inclined surface, and when the clamping block enters the notch, the second inclined surface is collinear with the end surface of the chamfered portion.

[0015] The beneficial effects of the present application are: the motor shell with quick connection structure provided by the present application is provided with the first connecting piece, so that the elastic connection between the main body shell and the connecting shell can be formed to quickly install and dismount, and the second connecting piece is arranged to form the elastic connection between the rear cover and the connecting shell to quickly install and dismount, so that the operation is convenient and the positioning is accurate.

[0016] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the present application, serve to explain the present application, and do not constitute improper limitations on the present application.

[0018] In the drawings:

[0019] Figure 1 is the overall schematic diagram of the present application;

[0020] Figure 2 is the overall cross-sectional schematic diagram of the present application;

[0021] Figure 3 is the overall schematic diagram of the present application; Figure 2 is the enlarged schematic diagram of area A in the middle;

[0022] Figure 4 is the schematic diagram of the clamping block of the present application;

[0023] Figure 5 is the cross-sectional schematic diagram of the present application;

[0024] Figure 6 is the overall schematic diagram of the present application; Figure 5 is the enlarged schematic diagram of area B in the middle;

[0025] In the drawings, various reference signs represent:

[0026] 1, main body shell; 11, working cavity; 12, sliding cavity; 2, connecting shell; 21, upper limit cavity; 22, lower limit cavity; 3, rear cover and fan cover; 31, fan mounting area; 32, notch; 33, supporting leg; 34, chamfered portion; 4, sliding block; 41, limiting portion; 42, first inclined surface; 43, movable cavity; 44, second inclined surface; 5, first spring; 6, second spring; 7, clamping block. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] In order to enable personnel in the technical field to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the scope of protection of the present application.

[0029] As shown in Figure 1 , 2 , 3, the present application provides a technical scheme: a motor housing with a quick connection structure, comprising a main body shell 1, a connecting shell 2 and a rear cover wind cover 3, the connecting shell 2 is located between the main body shell 1 and the rear cover wind cover 3, the inner wall of the connecting shell 2 is provided with an upper limiting cavity 21 and a lower limiting cavity 22, the main body shell 1 is elastically connected with the upper limiting cavity 21 through a first connecting piece, the rear cover wind cover 3 is elastically connected with the lower limiting cavity 22 through a second connecting piece, the part of the rear cover wind cover 3 located in the connecting shell 2 is matched with the inclined surface of the first connecting piece, and the rear cover wind cover 3 is pressed downward, so that the first connecting piece moves radially and is separated from the connecting shell 2, and the connecting shell 2 is separated from the main body shell 1.

[0030] The main body shell 1 is provided with a working cavity 11 for mounting a motor stator and a rotor, a sliding cavity 12 penetrating through the wall surface close to the bottom of the main body shell 1 is formed, the first connecting piece is located in the sliding cavity 12, and a stepped surface is formed on the main body shell 1 close to the inner side of the sliding cavity 12.

[0031] As shown in Figure 4 , the first connecting piece comprises a sliding block 4 and a first spring 5, the outer wall of the sliding block 4 extends outwardly to form a limiting portion 41, one end of the first spring 5 abuts against the limiting portion 41, and the other end abuts against the stepped surface on the main body shell 1.

[0032] The outer side of the sliding block 4 has a first inclined surface 42 gradually inclined inwardly.

[0033] The bottom of the sliding block 4 is provided with a movable cavity 43 opening downwardly, and the wall surface on the right side of the movable cavity 43 is gradually inclined to the right from top to bottom to form a second inclined surface 44.

[0034] The rear cover wind cover 3 is provided with a fan mounting area 31 extending downwardly and communicating with the working cavity 11, and the outer peripheral wall of the rear cover wind cover 3 is symmetrically provided with notches 32 on both sides.

[0035] The second connecting piece comprises a second spring 6 and a clamping block 7, one end of the second spring 6 abuts against the lower limiting cavity 22, and the other end abuts against the left side of the clamping block 7, and the right side of the clamping block 7 is matched with the notches 32.

[0036] The top of the rear cover shroud 3 extends upward with two legs 33, the legs 33 are aligned with the movable cavity 43, the top end of the leg 33 is provided with a chamfer portion 34 near one side of the second slope 44, the chamfer portion 34 is consistent with the angle of the second slope 44, when the clamping block 7 enters the gap 32, the second slope 44 is collinear with the end face of the chamfer portion 34.

[0037] In one embodiment, the working principle of the motor housing.

[0038] As shown in Figure 3 , the working cavity 11 is provided with working structures such as rotor and stator of the motor, in the fan mounting area 31, a heat dissipation fan is installed to dissipate heat from the inside of the motor, the inner wall of the connecting shell 2 is moved upward to overlap the outer wall of the main body shell 1, the first slope 42 of the sliding block 4 is resisted by the inner wall of the connecting shell 2 and moves into the sliding cavity 12, at this time the limiting portion 41 drives one end of the first spring 5 to approach the other end of the sliding cavity 12, the first spring 5 is compressed to generate elastic potential energy, when the upper limiting cavity 21 is aligned with the sliding block 4, the elastic potential energy of the first spring 5 is released, so that the sliding block 4 is clamped into the upper limiting cavity 21;

[0039] Secondly, the rear cover shroud 3 is moved upward along the inner wall of the connecting shell 2 to compress the clamping block 7 inwardly into the lower limiting cavity 22, at this time the second spring 6 is compressed to generate elastic potential energy, when the gap 32 is aligned with the clamping block 7, the elastic potential energy releases to press the clamping block 7 into the gap 32.

[0040] As shown in Figure 5 , when it is necessary to remove the rear cover shroud 3 to clean the fan, the rear cover shroud 3 is pulled away from the main body shell 1, at this time the clamping block 7 is disengaged from the gap 32, so that the rear cover shroud 3 is disengaged from the connecting shell 2, when it is necessary to maintain other working components in the motor, the rear cover shroud 3 is pushed towards the main body shell 1, at this time the chamfer portion 34 on the leg 33 contacts the second slope 44 to form a slope cooperation, with the movement of the leg 33, the chamfer portion 34 is resisted by the second slope 44 to move the sliding block 4 to the right, until the top end of the leg 33 reaches the cavity bottom of the movable cavity 43, the connecting shell 2 is disengaged from the sliding block 4, so that the connecting shell 2 and the rear cover shroud 3 are taken out from the main body shell 1, to maintain and check the inside of the motor.

[0041] In summary, the device is provided with the first connecting member to form elastic connection between the main body shell 1 and the connecting shell 2, so that the main body shell 1 and the connecting shell 2 can be quickly installed and disassembled, and the second connecting member is provided to form elastic connection between the rear cover shroud 3 and the connecting shell 2, so that the rear cover shroud 3 and the connecting shell 2 can be quickly installed and disassembled, which is convenient to operate and accurate in positioning, and solves the technical problem that the motor housing commonly seen in the market is often complicated and complex in disassembly process, and accurate alignment is required when reinstalled, which is inconvenient to operate.

[0042] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrical machine housing having a quick connection structure, characterized by: The utility model provides a kind of motor, including main body shell (1), connecting shell (2) and rear cover wind cover (3), the connecting shell (2) is between main body shell (1) and rear cover wind cover (3), the inner wall of connecting shell (2) is equipped with upper limit cavity (21) and lower limit cavity (22), and the main body shell (1) is elastically telescopic connection with upper limit cavity (21) by being equipped with first connecting piece, and the rear cover wind cover (3) is elastically telescopic connection with lower limit cavity (22) by being equipped with second connecting piece, the part of rear cover wind cover (3) in connecting shell (2) is matched with the first connecting piece slope, and after pressing down rear cover wind cover (3), first connecting piece radial motion and is separated from connecting shell (2), and connecting shell (2) is separated from main body shell (1).

2. An electrical machine housing with a quick connection structure according to claim 1, characterized in that: The main body shell (1) is provided with a working cavity (11) for mounting a motor stator and rotor, a sliding cavity (12) is formed through the wall surface near the bottom of the main body shell (1), and the first connecting piece is located in the sliding cavity (12). A step surface is formed on the main body shell (1) near the inner side of the sliding cavity (12).

3. An electrical machine housing with a quick connection according to claim 2, characterized in that: The first connecting piece includes a sliding block (4) and a first spring (5). The outer wall of the sliding block (4) extends outwardly to form a limiting portion (41). One end of the first spring (5) abuts against the limiting portion (41), and the other end abuts against the step surface on the main body shell (1).

4. An electrical machine housing with a quick connection according to claim 3, characterized in that: The outer side of the sliding block (4) has a first inclined surface (42) that gradually inclines inwardly.

5. An electrical machine housing with a quick connection according to claim 4, characterized in that: The bottom of the sliding block (4) is provided with a movable cavity (43) that opens downwardly. The wall surface near the working cavity (11) gradually inclines inwardly from top to bottom to form a second inclined surface (44).

6. An electrical machine housing with a quick connection according to claim 5, characterized in that: The rear cover wind cover (3) is provided with a fan mounting area (31) that extends downwardly and communicates with the working cavity (11). The outer peripheral wall of the rear cover wind cover (3) is symmetrically provided with notches (32) on both sides.

7. An electrical machine housing with a quick connection according to claim 3, characterized in that: The second connecting piece includes a second spring (6) and a clamping block (7). One end of the second spring (6) abuts against the lower limit cavity (22), and the other end abuts against the outer end of the clamping block (7). The inner end of the clamping block (7) is matched with the notches (32).

8. An electrical machine housing with a quick connection according to claim 7, characterized in that: The top of the rear cover wind cover (3) extends upwardly to form two supporting legs (33). The supporting legs (33) are aligned with the movable cavity (43). The top end of the supporting legs (33) is provided with a chamfered portion (34) near one side of the second inclined surface (44). The chamfered portion (34) is consistent with the angle of the second inclined surface (44). When the clamping block (7) enters the notches (32), the second inclined surface (44) is collinear with the end surface of the chamfered portion (34).

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