CN203326769U - Motor housing assembly structure - Google Patents

Abstract

The utility model relates to a motor housing assembly structure aims at letting the rotor and the stator of motor can install in the shell fast under the condition that does not need the instrument, also can dismantle the shell fast and maintain, reaches reduce cost's purpose. The structure at least comprises a first shell, a second shell and a plurality of elastic clamping sheets, wherein the periphery of the joint position of the first shell and the second shell is respectively provided with a plurality of two corresponding positioning concave parts for rapidly clamping each elastic clamping sheet between the two positioning concave parts; the elastic clamping piece body is a U-shaped metal sheet, one end of the elastic clamping piece is provided with a force application part, when the elastic clamping piece is to be disassembled, a user only needs to use a straight tool or other sheet-shaped tools to apply force reversely from the force application part, and the elastic clamping piece can be separated from the two positioning concave parts to disassemble the first shell and the second shell, so that the aim of quick disassembly and assembly is fulfilled.

Description

Motor housing assembly structure

technical field

The utility model relates to an assembly structure of a motor casing, in particular to a motor casing that can be quickly assembled without tools, and can also be quickly disassembled for maintenance, so as to achieve the purposes of convenient combination maintenance and cost reduction.

Background technique

The basic structure of the motor is composed of a permanent magnet, a rotor composed of a rotating shaft, and a stator composed of electromagnetic coils. When the stator composed of electromagnetic coils receives power and produces a magnetic phase change, the rotor can be driven to rotate and pass through the rotating shaft. Transmission to output power.

In order to prevent the rotor from being hindered when it rotates, and to minimize the loss of power due to friction when the rotor rotates, the aforementioned rotor and stator are arranged in a cylindrical casing for dust-proofing. The two ends or one end of the casing have ball bearings for The shaft of the rotor passes through to output power, so that the rotor can maintain the best output efficiency as much as possible.

As mentioned earlier, since the rotor is driven by the electromagnetic coil receiving power to produce magnetic phase changes, and the power loss must be minimized during the rotation of the rotor, and in the operation process, the precision of the electromagnetic coil manufacturing process and the ball on the shell Various external factors, such as the accuracy of the bearing to position the rotor at the center of the electromagnetic coil, will affect the output efficiency of the rotor, so that the finished motor must undergo strict testing to ensure its quality.

As shown in Figure 1, in order to facilitate assembly, generally the existing shell is composed of an upper shell 1 and a lower shell 2, and the upper shell 1 and the lower shell 2 are joined together to form an accommodating space inside for installation. The rotor and the stator, wherein the upper shell 1 and the lower shell 2 are respectively provided with multiple sets of lugs 3 on the corresponding joint sides, and each pair of corresponding lugs 3 is provided with coaxially arranged screw holes 4, so that the screws 5 can be locked In the two screw holes 4, the joint edges of the upper shell 1 and the lower shell 2 are closely connected to each other to prevent dust or foreign matter from entering. If the motor is to be calibrated and maintained, the screw 5 can be released from the locked state, and the casing can be disassembled for maintenance and calibration.

However, the axes of the stator and rotor of each group of motors may not be precisely controlled at the center point, so that the motor is prone to vibration when it is running. After a long time of operation, the screws are easy to vibrate and loosen, so that there is no gap between the upper shell and the lower shell. Maintaining a close state will affect the output efficiency of the motor.

As shown in Figure 2, another existing casing is to punch or rivet the corresponding joint edges of the upper casing 1 and the lower casing 2 in the form of lugs 3, in order to prevent the motor from vibrating and loosening the screws when it is running. missing, and can save the screw holes of the upper shell and the lower shell to align with each other and the assembly steps of locking screws, reducing the manufacturing man-hours. However, in this method, after the upper shell and the lower shell are combined and fixed by stamping or riveting, they cannot be disassembled repeatedly, and the center point position of the motor stator and rotor cannot be corrected. If the components inside the motor are damaged, it cannot Repair it.

More importantly, as mentioned above, the output efficiency of the rotor and stator will be affected by various factors. If the output efficiency of the finished motor is found to be lower than expected after testing or even after a period of use, it is often necessary to disassemble the casing To check its internal structure, we can find out the cause to avoid similar problems in other motors. If repairs are required, the shell needs to be disassembled to replace the internal parts. In this way, the above-mentioned existing shells that are combined by screws or stamping obviously exist. With the troubles of cumbersome assembly and inconvenient disassembly and maintenance, it is obvious that there is a need for improvement.

In view of this, the designer of this utility model has accumulated many years of research and practical experience in related fields, and specially developed a motor casing assembly structure to solve the lack of cumbersome assembly and inconvenient disassembly and maintenance of the existing casing.

Contents of the invention

The purpose of this utility model is to provide a motor casing assembly structure, so that the rotor and stator of the motor can be quickly installed in the casing without tools, and the installed motor can also be quickly disassembled when maintenance and adjustment are required. shell, in order to achieve the purpose of rapid assembly, convenient maintenance, and cost reduction.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An assembly structure for a motor housing, comprising at least a first housing, a second housing, and a plurality of elastic clamping pieces, wherein the first housing and the second housing are joined together to form an accommodating space inside , for accommodating the rotor and the stator, characterized in that:

A plurality of two corresponding positioning recesses are provided on the periphery of the joint position of the first shell and the second shell, so that each of the elastic clamping pieces can be clamped between the two positioning recesses; The body of the elastic clamping piece is a U-shaped metal sheet, and the two ends are respectively a hooking part and a pressing part that can be buckled and held in two positioning recesses to make the first and second shells tightly fastened. The front end of the buckle part has a force applying part bent outward and backward for reverse force to disassemble the elastic clamping piece.

During implementation, the hooking portion and the pressing portion are respectively in the shape of a hook bent toward the inside, and the force application portion of the pressing portion is located at the end of the hook-shaped pressing portion.

During implementation, the hooking portion, buckle portion and force application portion of the elastic clamping piece are integrally stamped from a metal sheet.

During implementation, the first and second shells are respectively die-cast and formed into correspondingly joined cylindrical shapes.

In practice, one of the first and second housings is a cylinder with the accommodating space, and the other housing is a cover plate capable of covering and closing the accommodating space.

During implementation, one of the first and second shells is a round tube with the accommodating space, and the other shell is two cover plates respectively covering the two ends of the round tube.

During implementation, the opposite joint sides of the first and second shells are respectively provided with a protruding ring with a thickness protruding outward, and the aforementioned two positioning recesses are respectively recessed on the outer wall thickness of the two protruding rings.

During implementation, the positioning recesses are two corresponding recessed holes arranged on the wall surfaces of the first and second housings, so that the hooking parts and buckle parts of the elastic clamping pieces can be buckled and held in the recessed holes respectively. In the two positioning recesses of the shape.

The above-mentioned hooking part and buckle part which are respectively curved towards the inside can be snapped into and held in the two positioning recesses without tools. Loosen; and the force application part is bent outward and backward relative to the positioning concave part. When the user uses a flat tool or other sheet tools to apply force from the force application part in reverse, the buckle part can be released first. The first and second housings are disassembled by breaking away from the corresponding positioning recesses, and then disengaging the hooking portion from the corresponding positioning recesses, so as to achieve the purpose of quick assembly and convenient maintenance.

Compared with the prior art, the utility model can fasten the first and second shells together and quickly complete the assembly without tools, and can also quickly disassemble the shells for maintenance, solving the problem of combining by screws or stamping. There is a lack of casing, which is cumbersome to assemble and inconvenient to disassemble.

Description of drawings

Figure 1 is a schematic diagram of the assembly of the existing motor casing with screws;

Figure 2 is a schematic diagram of the assembly of the existing motor housing by stamping;

Fig. 3 is a three-dimensional appearance view of the utility model;

Fig. 4 is a three-dimensional exploded view of the utility model;

Fig. 5 is a schematic diagram of installation of the elastic clamping piece of the present invention;

Fig. 6 is the second embodiment of the utility model housing;

Fig. 7 is the third embodiment of the utility model housing;

FIG. 8 is a schematic diagram of installation of the elastic clamping piece in FIG. 6 .

Explanation of reference numerals: 10 first shell; 11 protruding ring; 20 second shell; 21 protruding ring; 30 elastic clamping piece; 31 hooking part;

Detailed ways

Below according to the technical means of the present invention, enumerate and be suitable for the specific embodiment of the present invention, and cooperate drawing description as follows:

As shown in Figures 3 to 5, the assembly structure of the motor housing of the present invention at least includes a first housing 10, a second housing 20 and a plurality of elastic clamping pieces 30, wherein the first housing 10 and the second housing The bodies 20 are correspondingly joined together to form an accommodating space inside for accommodating the rotor and the stator (not shown), and there are a plurality of two corresponding ones around the joint position of the first housing 10 and the second housing 20. The positioning recesses 40 are used for each elastic clamping piece 30 to be clamped between the two positioning recesses 40 , so that the first housing 10 and the second housing 20 are correspondingly engaged and then fixed.

In the figure, the body of the elastic clamping piece 30 is a roughly U-shaped metal sheet, and the two ends are respectively the hooking portion 31 and the pressing portion 32 that can be buckled into the two positioning recesses 40, so that the first, The second housing 10, 20 can be tightly fastened by virtue of its elasticity to quickly complete the assembly, wherein the front end of the buckle part 32 is further bent outwards and backwards to form a force application part 33. or other sheet-shaped tools apply force in reverse from the force applying portion 33, that is, the elastic clamping piece 30 can be separated from the two positioning recesses 40 to disassemble the first and second housings 10, 20, so as to achieve rapid assembly and convenient maintenance. Purpose.

As shown in Figure 4, when the utility model is implemented, the first and second housings 10 and 20 can be made into cylindrical shapes of the same shape by die-casting respectively, so that the first and second housings 10 and 20 correspond to each other. After being joined together, an accommodating space is formed inside to accommodate the rotor and the stator.

During implementation, the first and second housings 10 and 20 are not limited to cylindrical shapes, and as shown in FIG. 6, one of the first and second housings 10 and 20 is a cylinder with accommodating space. The other housing is a cover plate that can cover and close the accommodating space; in the figure, the first housing 10 is a cover plate on the left side, and the second housing 20 is a circle with an accommodating space on the right side. cylinder.

Or as shown in Figure 7, one of the first and second housings 10, 20 is a circular tube with accommodating space, and the other housing is two covers that can be sealed and closed at the two ends of the circular tube; In the illustration, the second housing 20 is a circular tube, and the first housing 10 is two cover plates capable of sealingly covering both ends of the circular tube; these specific implementation methods are all within the applicable scope of the present utility model.

Please refer to Fig. 4 and Fig. 5 again. During implementation, the opposite joint edges of the aforementioned first and second housings 10, 20 are respectively provided with a convex ring 11, 21 protruding outwards with a thickness, and the aforementioned two positioning recesses 40 can be Respectively recessed on the wall thickness of the outer sides of the two convex rings 11, 21, so that the hooking portion 31 and the pressing portion 32 of each elastic clamping piece 30 can be buckled and locked in the corresponding positioning concave portion 40, and then the second 1. The second housing 10, 20 is tightly fastened by the elastic clamping piece 30 to quickly complete the assembly; the advantage of this specific embodiment is that the two convex rings 11, 21 can be assembled when the first and second housings 10, 20 are made One-piece molding, no additional processing required.

In the illustration, the aforementioned elastic clamping piece 30 can be integrally stamped and formed by a metal sheet, and has elasticity and clamping force by virtue of the bending of the metal sheet, which is also simple and low-cost in manufacture, which is conducive to mass production manufacture. During implementation, the hooking portion 31 and the buckle portion 32 of the elastic clamping piece 30 are respectively inwardly curved in a hook shape, and the aforementioned force application portion 33 is located at the end of the hook-shaped buckle portion 32 and outwardly and outwardly. Bend backward.

The above-mentioned hooking portion 31 and buckle portion 32 which are curved inwardly respectively have arc-shaped curved surfaces which allow the hooking portion 31 and the buckle portion 32 to be fastened and held in two positions without tools. The first and second shells 10 and 20 can be quickly assembled without loosening in the recess 40 . The force application part 33 is outward and backward relative to the positioning concave part 40, which is convenient for the user to apply force from the force application part 33 in the opposite direction by using a flat tool or other sheet tools, so that the buckle part can be moved first. 32 from the corresponding positioning recess 40, and then the hooking portion 31 is separated from the corresponding positioning recess 40, and the first and second housings 10, 20 are disassembled to achieve the purpose of quick assembly and convenient maintenance.

In addition, the specific implementation of the two positioning recesses 40 can also be shown in Figures 6 to 8, which are a plurality of two corresponding concave holes respectively provided on the walls of the first and second housings 10 and 20 to respectively The hooking part 31 and the buckle part 32 of each elastic clamping piece 30 are buckled and clamped in the two positioning concave parts 40 in the shape of concave holes, and the first and second housings 10 and 20 are tightly buckled; The specific embodiment of the hole-shaped positioning recess 40 only needs to be completed by simple cutting on the first and second housings, which also does not cause too much impact on the manufacturing cost.

The description of the above embodiments and the illustrations shown in the drawings are only examples to illustrate the preferred embodiments of the present utility model, and are not intended to limit the present utility model. All those that are similar or identical to the structure, device, feature, etc. of the present utility model shall fall within the creation purpose of the utility model and the scope of the patent application, hereby declare.

Claims (8)

1. An assembly structure of a motor housing, comprising at least a first housing, a second housing and a plurality of elastic clamping pieces, wherein the first housing and the second housing are joined together to form a container inside. Set space for accommodating the rotor and the stator, characterized in that: A plurality of two corresponding positioning recesses are provided on the periphery of the joint position of the first shell and the second shell, so that each of the elastic clamping pieces can be clamped between the two positioning recesses; The body of the elastic clamping piece is a U-shaped metal sheet, and the two ends are respectively a hooking part and a pressing part that can be buckled and held in two positioning recesses to make the first and second shells tightly fastened. The front end of the buckle part has a force applying part bent outward and backward for reverse force to disassemble the elastic clamping piece. 2. The assembly structure of the motor housing according to claim 1, wherein the hooking portion and the pressing portion are respectively in the shape of a hook bent toward the inside, and wherein the force application portion of the pressing portion is located in the shape of the hook. The end of the press buckle. 3 . The assembly structure of the motor housing according to claim 2 , wherein the hooking portion, the buckle portion and the force applying portion of the elastic clamping piece are integrally stamped from a metal sheet. 4 . 4 . The assembly structure of the motor casing according to claim 3 , wherein the first and second casings are respectively die-cast and formed into correspondingly joined cylindrical shapes. 5 . 5. The assembly structure of the motor casing according to claim 3, wherein one of the first and second casings is a cylinder with the accommodating space, and the other casing is a coverable A cover plate that closes the accommodating space. 6. The assembly structure of the motor housing according to claim 3, wherein one of the first and second housings is a circular tube with the accommodating space, and the other housing is two separate covers Fit the cover plates at both ends of the round tube. 7. The motor casing assembly structure according to any one of claims 1 to 6, wherein the opposite joint edges of the first and second housings are respectively provided with a protruding ring with a thickness protruding outward, the aforementioned The two positioning recesses are respectively recessed on the outer wall thickness of the two protruding rings. 8. The assembly structure of the motor housing according to any one of claims 1 to 6, wherein the positioning recesses are two corresponding recessed holes provided on the wall surfaces of the first and second housings, for respectively supplying The hooking portion and the buckle portion of each elastic clamping piece are buckled and clamped in the two positioning recesses in the shape of a concave hole.

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