Motor shell structure convenient to disassemble and assemble

Abstract

The utility model discloses a motor shell structure convenient to disassemble and assemble, which relates to the technical field of motor shells, and particularly comprises a first shell and a second shell with semicircular sections, the first shell and the second shell are spliced to form a cylindrical structure, the motor shell structure further comprises a cylindrical inner shell, and front end covers are arranged at two ends of the inner shell; two strip-shaped bases parallel to the axis of the inner shell are symmetrically installed outside the inner shell, the inner shell is coaxially arranged in the barrel-shaped structure, and a certain distance exists between the outer wall of the inner shell and the barrel-shaped structure. When the motor is used, external cold air continuously enters the surface of the inner shell, so that the stator and the rotor in the inner shell are cooled, the cooling speed is high, and the heat dissipation effect is good; and the inner shell, the first shell, the second shell and the exhaust structure are connected through bolts, so that all the parts can be detached, and meanwhile, the installation is also convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motor casings, in particular to a motor casing structure that is convenient for disassembly and assembly. Background Technique

[0002] A motor, also known as an electric machine, is equipped with a fan at its end. The main purpose of the fan is to dissipate heat. Because the motor generates a certain amount of heat during operation. This heat mainly comes from the resistance generated when the current inside the motor passes through wires, coils, and other electrical components, resulting in energy loss and conversion into heat. If the heat generated inside the motor cannot be dissipated in time, it will cause the motor to overheat, thereby affecting its performance and lifespan. Therefore, in order to keep the working temperature of the motor within an appropriate range and prevent damage caused by overheating, cooling fans are widely used to dissipate the generated heat into the external environment.

[0003] However, the existing motors rely on the fans installed at their tails for heat dissipation, and the effect is limited. They cannot effectively dissipate the heat from the surface of the motor. Because the surface of the motor housing is covered with heat sinks, and compared with the entire volume of the motor, the proportion of the motor housing area is large. The motor housing also continuously transfers heat outward, which is also one of the ways of motor heat dissipation, but the heat dissipation effect is limited. For this reason, we propose a motor casing structure that is convenient for disassembly and assembly, which can allow air to flow rapidly on the surface of the casing, thus solving the above technical problems. Content of the Utility Model

[0004] Aiming at the deficiency of poor heat dissipation of the existing motor housing, the utility model provides a motor casing structure that is convenient for disassembly and assembly, which has the advantage of allowing continuous cold air from the outside to enter the surface of the inner casing, so that the stator and rotor inside the inner casing can be cooled down, and solves the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A motor casing structure that is convenient for disassembly and assembly includes a first casing and a second casing with semi-circular cross-sections. After the first casing and the second casing are spliced, they form a cylindrical structure. Among them, it also includes a cylindrical inner casing, and front end covers are provided at both ends of the inner casing;

[0006] Two strip-shaped seats parallel to the axis of the inner casing are symmetrically installed outside the inner casing. The inner casing is coaxially placed inside the cylindrical structure, and there is a certain distance between the outer wall of the inner casing and the cylindrical structure. The strip-shaped seats are respectively placed between the edges of the first casing and the second casing, and the three are detachably installed together;

[0007] It also includes an exhaust structure detachably installed at one end of the cylindrical structure.

[0008] Preferably, connecting skirt edges are provided at the edges of the first housing and the second housing, the strip-shaped seat is located between the upper and lower connecting skirt edges, and the three are fixed by bolts.

[0009] Preferably, the exhaust structure includes an exhaust fan and a sealing cover, and the exhaust fan is installed at the end of the motor rotor;

[0010] A fan cover is provided at the center of the sealing cover, the edge of the sealing cover is fastened to the edge of the cylindrical structure by bolts, and the exhaust fan is placed inside the fan cover.

[0011] Preferably, two support legs are symmetrically installed at the bottom of the first housing.

[0012] Preferably, at least two strip-shaped reinforcing seats parallel to the axis thereof are symmetrically provided on the surface of the inner housing;

[0013] Circular reinforcing ribs are provided at both ends and the middle of the surface of the inner housing. The circular reinforcing ribs are respectively connected to the strip-shaped reinforcing seats and the strip-shaped seats, and there is a certain distance between the circular reinforcing ribs and the cylindrical structure.

[0014] Preferably, connecting seats corresponding to the strip-shaped reinforcing seats and the strip-shaped seats are respectively provided at the edges of the end cover, and the connecting seats are respectively fastened to the ends of the strip-shaped reinforcing seats and the strip-shaped seats by bolts.

[0015] Preferably, a bearing hole is provided at the center of the end cover.

[0016] Compared with the prior art, when the present utility model is in use, the exhaust fan is installed at the end of the motor rotor, so that the exhaust fan rotates with the stator. When the exhaust fan rotates, it can blow the gas inside the fan cover outwards, allowing the cold air from the outside to continuously enter the surface of the inner housing, so that the stator and rotor inside the inner housing are cooled. The cooling speed is fast and the heat dissipation effect is good; and the inner housing, the first housing, the second housing, and the exhaust structure are all connected by bolts, so that each part can be disassembled, and at the same time, it is also convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of all the structures of the present utility model.

[0018] Figure 2 is a schematic diagram of the rear part of the present utility model Figure 1 .

[0019] Figure 3 is a schematic diagram of the rear part of the present utility model Figure 2 .

[0020] Figure 4 is an exploded schematic diagram of the present utility model Figure 1 .

[0021] Figure 5 Schematic diagram of the explosion structure of the present utility model Figure 2 .

[0022] In the figure: 1. First housing; 2. End cover; 3. Connecting skirt; 4. Second housing; 5. Strip-shaped seat; 6. Support leg; 7. Sealing cover; 8. Fan cover; 9. Exhaust fan; 10. Inner housing; 11. Bearing hole; 12. Strip-shaped strengthening seat; 13. Annular strengthening rib; 14. Connecting seat; 15. Support plate. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a motor housing structure that is convenient to disassemble and assemble, including an inner housing 10. The inner housing 10 is used to install the stator of the motor. A rotor matching the stator is provided inside the stator, and end covers 2 are installed at both ends of the inner housing 10. A bearing hole 11 is provided at the center of the end cover 2, and both ends of the rotor are rotatably arranged in the bearing hole 11 through bearings;

[0025] The specific structure of the inner housing 10 is, as Figure 4 and Figure 5 shown, two strip-shaped seats 5 parallel to the axis of the inner housing 10 are symmetrically installed outside the inner housing 10. At least two strip-shaped strengthening seats 12 parallel to the axis of the inner housing 10 are symmetrically provided on the surface of the inner housing 10. As Figure 4 shown, the strip-shaped strengthening seats 12 and the strip-shaped seats 5 are both centrally symmetrically distributed. Annular strengthening ribs 13 are provided at both ends and in the middle of the surface of the inner housing 10. The annular strengthening rib 13 in the middle is at least one. The annular strengthening rib 13 and the surface of the inner housing 10 are both connected by arc transition, which can reduce the wind resistance passing through the surface of the inner housing 10;

[0026] Because the stator needs to be fixed inside the inner housing 10, the inner housing 10 needs to have sufficient support strength. As Figure 4 shown, the provided annular strengthening rib 13 can strengthen the strength of the port of the inner housing 10 and prevent the inner housing 10 from cracking. And the provided strip-shaped seats 5 and strip-shaped strengthening seats 12 can strengthen the axial stiffness of the inner housing 10, make the inner housing 10 more firm, and prevent the stator from bursting the inner housing 10.

[0027] This application also includes a first housing 1 and a second housing 4. The cross-sections of the first housing 1 and the second housing 4 are both semi-circular. When the first housing 1 and the second housing 4 are joined together, they can form a cylindrical structure. As Figure 1 and Figure 4 shown, the first housing 1 and the second housing 4 are located outside the inner housing 10, that is, the inner housing 10 is coaxially placed inside the cylindrical structure, and there is a certain distance between the outer wall of the inner housing 10 and the cylindrical structure. In fact, there is a certain distance between the outer wall of the inner housing 10 and the first housing 1 and the second housing 4. This distance is used for air circulation.

[0028] This application also includes an exhaust structure, which is detachably installed at one end of the cylindrical structure. As Figure 2 and Figure 4 shown, the exhaust structure includes an exhaust fan 9 and a sealing cover 7. In actual operation, the exhaust fan 9 is installed at the end of the motor rotor, so that the exhaust fan 9 rotates as the stator rotates. A fan cover 8 is provided at the center of the sealing cover 7.

[0029] Specifically, the installation relationship among the inner housing 10, the first housing 1, the second housing 4, and the exhaust structure is as Figure 1 , Figure 4 and Figure 5 shown. Connecting skirts 3 are provided at the edges of both the first housing 1 and the second housing 4. The first housing 1 is located at the bottom. Then, the inner housing 10 is placed inside the first housing 1, and then the second housing 4 is covered. In this way, the first housing 1 and the second housing 4 can clamp the inner housing 10 in the middle. At this time, the strip seat 5 is located between the upper and lower connecting skirts 3. The strip seat 5 is respectively placed between the edges of the first housing 1 and the second housing 4 and the three are detachably installed together, that is, the strip seat 5 and the two connecting skirts 3 are fastened by bolts;

[0030] At the same time, as Figure 2 and Figure 3 shown, the sealing cover 7 covers one end of the inner housing 10. The edge of the sealing cover 7 is detachably connected to the edge of the cylindrical structure, that is, the edge of the sealing cover 7 is respectively fastened to the edge of one end of the first housing 1 and the second housing 4 by bolts. And at this time, the exhaust fan 9 is placed inside the fan cover 8. Therefore, when the exhaust fan 9 rotates, it can blow the gas inside the fan cover 8 outwards (the exhaust fan 9 can also suck air into the fan cover 8), so that a negative pressure is formed inside the fan cover 8. Then, air flows from the distance between the inner housing 10 and the cylindrical structure towards the fan cover 8. Finally, the outside cold air continuously enters from one end of the cylindrical structure far away from the fan cover 8. The entering air can quickly pass through the outer surface of the inner housing 10, thereby taking away the heat on the surface of the inner housing 10 and cooling the stator and rotor inside the inner housing 10;

[0031] The above-mentioned inner housing 10, the first housing 1, the second housing 4, and the exhaust structure are all connected by bolts, so that each part can be disassembled, and it is also convenient for installation. When the surface of the inner housing 10 needs to be cleaned, the first housing 1 and the second housing 4 can be opened.

[0032] It should be noted that the annular reinforcing ribs 13 are respectively connected to the strip-shaped reinforcing seats 12 and the strip-shaped seats 5. There is a certain distance between the annular reinforcing ribs 13 and the cylindrical structure to prevent the annular reinforcing ribs 13 from touching the inner wall of the cylindrical structure, resulting in the obstruction of air flow.

[0033] Furthermore, two support legs 6 are symmetrically installed at the bottom of the first housing 1. The support legs 6 respectively include support plates 15 connected to the bottom surface of the first housing 1. The bottom parts of the support plates 15 are respectively provided with supports, and the supports are provided with mounting holes. In the actual application process, such as Figure 4 and Figure 5 shown, the first housing 1 mainly plays a role in supporting the entire motor, so the first housing 1 has a relatively large thickness to have sufficient support strength, while the second housing 4 only plays a role in covering the top of the inner housing 10. The second housing 4 can be designed as a thin plate, which is convenient for handling the second housing 4 during disassembly.

[0034] Furthermore, the present application also proposes a specific structure for connecting the end cover to the inner housing 10, making the end cover convenient to disassemble and having sufficient connection strength. As Figure 5 shown, connection seats 14 corresponding to the strip-shaped reinforcing seats 12 and the strip-shaped seats 5 are respectively provided at the edges of the end cover 2. The connection seats 14 and the ends of the strip-shaped reinforcing seats 12 and the strip-shaped seats 5 are fastened by bolts. Connecting the bolts to the strip-shaped reinforcing seats 12 and the strip-shaped seats 5 can make the bolts have sufficient connection strength.

[0035] Based on the above embodiments, it can be further optimized that the ends of the first housing 1 and the second housing 4 close to the sealing cover 7 are provided with flange edges, and the edge of the sealing cover 7 is also provided with a flange edge. The two flange edges are connected by bolts.

[0036] Based on the above embodiments, it can be further optimized that, as Figure 2 and Figure 5 the arrow A in points to, an opening is provided on the surfaces of both the inner housing 10 and the second housing 4. This opening is used for wiring. The motor control box is installed on the opening on the surface of the inner housing 10, and then the motor control box is placed inside the opening on the surface of the second housing 4. The set motor control box occupies a limited area on the surface of the entire inner housing 10 and will not affect the ventilation effect.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A motor housing structure that is easy to disassemble and assemble, comprising a first housing (1) and a second housing (4) both having a semi-circular cross-section. After the first housing (1) and the second housing (4) are spliced, a cylindrical structure is formed. It is characterized in that, It further includes a cylindrical inner housing (10), and front end covers (2) are provided at both ends of the inner housing (10); Two strip-shaped seats (5) parallel to its axis are symmetrically installed outside the inner housing (10). The inner housing (10) is coaxially placed inside the cylindrical structure, and there is a certain distance between the outer wall of the inner housing (10) and the cylindrical structure. The strip-shaped seats (5) are respectively placed between the edges of the first housing (1) and the second housing (4), and the three are detachably installed together; It further includes an exhaust structure detachably installed at one end of the cylindrical structure.

2. The quick-disassembly motor housing structure according to claim 1, wherein, Connection skirts (3) are provided at the edges of the first housing (1) and the second housing (4). The strip-shaped seats (5) are located between the upper and lower connection skirts (3), and the three are fixed by bolts.

3. The motor housing structure that can be easily disassembled and assembled according to claim 2, characterized in that, The exhaust structure includes an exhaust fan (9) and a sealing cover (7). The exhaust fan (9) is installed at the end of the motor rotor; A fan cover (8) is provided at the center of the sealing cover (7). The edge of the sealing cover (7) is fastened to the edge of the cylindrical structure by bolts, and the exhaust fan (9) is placed inside the fan cover (8).

4. The motor housing structure that can be disassembled and assembled conveniently according to claim 1, characterized in that, Two support legs (6) are symmetrically installed at the bottom of the first housing (1).

5. The quick-disassembly motor housing structure according to any one of claims 1-4, characterized in that At least two strip-shaped strengthening seats (12) parallel to its axis are symmetrically provided on the surface of the inner housing (10); Circular strengthening ribs (13) are provided at both ends and in the middle of the surface of the inner housing (10). The circular strengthening ribs (13) are respectively connected to the strip-shaped strengthening seats (12) and the strip-shaped seats (5), and there is a certain distance between the circular strengthening ribs (13) and the cylindrical structure.

6. The motor housing structure capable of being disassembled and assembled conveniently according to claim 5, wherein Connection seats (14) corresponding to the strip-shaped strengthening seats (12) and the strip-shaped seats (5) are respectively provided at the edges of the end cover (2). The connection seats (14) are respectively fastened to the ends of the strip-shaped strengthening seats (12) and the strip-shaped seats (5) by bolts.

7. The motor housing structure that can be disassembled and assembled conveniently according to claim 6, characterized in that, A bearing hole (11) is provided at the center of the end cover (2).

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