CN218997098U

CN218997098U - Pin protection system of direct current motor

Info

Publication number: CN218997098U
Application number: CN202223494640.1U
Authority: CN
Inventors: 虞春琴; 陈金林
Original assignee: Changzhou Yixin Electric Co ltd
Current assignee: Changzhou Yixin Electric Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-09
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of motors, in particular to a pin protection system of a direct current motor, which comprises a shell, a stator assembly, a rotor assembly and an end cover assembly, wherein the end cover assembly comprises an end cover body, a pin assembly and a mounting seat, the pin assembly comprises a pin body and elastic arms obliquely arranged on two sides of the pin body, a clamping groove is formed in the pin body, and the elastic arms can be inserted into the clamping groove so as to enable the elastic arms to be attached to the pin body. According to the utility model, the elastic arms are obliquely arranged on the two sides of the pin body, when the pin assembly needs to be installed and extended out of the end cover body, the elastic arms are pressed to deform and retract into the clamping groove, the pin assembly can be installed upwards, and after the pin assembly is installed in place, the elastic arms recover deformation, so that the elastic arms cannot slip downwards; meanwhile, a connecting ring is formed between the elastic arm and the pin body, so that other components and parts are electrically connected with the pin assembly conveniently.

Description

Pin protection system of direct current motor

Technical Field

The utility model relates to the technical field of motors, in particular to a pin protection system of a direct current motor.

Background

The motor is a common electrical device, and the size of the pins is an important size in the production process of the motor. The pins are exposed outside, so that the pins are easily retracted into the end cover, and the motor pins are poor in size. For example, the Chinese patent application number is: CN201910718428.2, entitled direct current motor and rubber cover assembly thereof, discloses a socket on the connecting base, a plug-in is arranged in the socket, the plug-in directly presses two pins in the slot, which can effectively prevent the two pins from loosening. The slot is perpendicular to the slot, the lower parts of the two side surfaces of the plug-in unit are guiding inclined planes, and the plug-in unit is tightly matched with the slot. The middle part of the bottom surface of the plug-in unit is provided with a clamping groove which is trapezoid, the width of the lower part of the clamping groove is larger than that of the upper part of the clamping groove, and the clamping groove clamps the two pins. The above patent discloses that the plug-in, i.e. the pins, is directly inserted into the slots, and the motor may cause the pins to retract into the end caps during the production process or the transportation process, i.e. the size from the pins to the end caps is not satisfactory.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to overcome the technical problems in the prior art, the utility model provides a pin protection system of a direct current motor, which comprises,

the shell, the stator component arranged in the shell, the rotor component arranged in the shell in a rotating way and the end cover component arranged at one end of the shell, wherein the end cover component comprises an end cover body, a pin component arranged on the end cover body and a mounting seat suitable for placing pins, the mounting seat is provided with a mounting hole suitable for inserting the pin component, the pin component comprises a pin body and elastic arms obliquely arranged at two sides of the pin body, the pin body is provided with a clamping groove, the elastic arms can be inserted into the clamping groove so as to enable the elastic arms to be attached to the pin body,

when the elastic arm is attached to the pin body, the pin assembly can pass through the mounting hole upwards;

when the elastic arms are obliquely arranged on two sides of the pin body, the pin assembly cannot downwards pass through the mounting hole.

Further, the elastic arm comprises a connecting part and a clamping part connected with the connecting part, wherein,

the clamping part is matched with the clamping groove, so that the clamping part can be inserted into the clamping groove.

Further, a guide groove is arranged in the clamping groove, a guide sheet is arranged on the connecting part, wherein,

the guide piece is arranged in the guide groove in a sliding way.

Further, a spring is further arranged in the guide groove, one end of the spring is fixed at the bottom of the guide groove, and the other end of the spring is fixed at the connecting portion.

Further, the corner of the connecting part is also provided with a rounding.

Further, the elastic arm is connected with the pin body to form a connection ring, so that the connection wire is electrically connected with the pin body.

Further, the end cap assembly is riveted to the housing.

Further, the end cover body is also provided with a heat dissipation hole.

The beneficial effects are that: the utility model relates to a pin protection system of a direct current motor, which is characterized in that elastic arms are obliquely arranged on two sides of a pin body, when a pin assembly needs to be installed and extended out of an end cover body, the elastic arms are pressed to deform and retract into a clamping groove, the pin assembly can be installed upwards, and after the pin assembly is installed in place, the elastic arms recover deformation, so that the elastic arms cannot slip downwards; meanwhile, a connecting ring is formed between the elastic arm and the pin body, so that other components and parts are electrically connected with the pin assembly conveniently.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a front view of the pin assembly structure of the present utility model;

FIG. 3 is a schematic diagram of a pin assembly according to the present utility model;

in the figure:

100. the motor comprises a casing, 110, a stator assembly, 120, a rotor assembly, 130, an end cover assembly, 131, an end cover body, 132, a mounting seat, 133, a mounting hole, 140, a pin assembly, 141, a pin body, 142, an elastic arm, 143, a connecting part, 144, a clamping part, 145, a clamping groove, 146, a guide groove, 147, a guide piece, 148, a spring, 149, a rounding, 150, a connecting ring, 160 and a radiating hole.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

Example 1

As shown in fig. 1 to 3, a pin protection system of a direct current motor includes a casing 100, a stator assembly 110 disposed in the casing 100, a rotor assembly 120 rotatably disposed in the casing 100, and an end cover assembly 130 disposed at one end of the casing 100, where the end cover assembly 130 includes an end cover body 131, a pin assembly 140 disposed on the end cover body 131, and a mounting seat 132 adapted to place a pin, the mounting seat 132 is provided with a mounting hole 133 adapted to be inserted into the pin assembly 140, the pin assembly 140 includes a pin body 141 and elastic arms 142 obliquely disposed on two sides of the pin body 141, the pin body 141 is provided with a clamping slot 145, and the elastic arms 142 can be inserted into the clamping slot 145, so that the elastic arms 142 are attached to the pin body 141, where, when the elastic arms 142 are attached to the pin body 141, the pin assembly 140 can pass through the mounting hole 133 upwards; when the elastic arms 142 are disposed at both sides of the pin body 141 in an inclined manner, the pin assembly 140 cannot pass through the mounting hole 133 downward. When the elastic arm 142 is inserted into the clamping groove 145, the dimension between the elastic arm 142 and the pin body 141 can pass through the mounting hole 133.

The elastic arm 142 includes a connection portion 143 and a clamping portion 144 connected to the connection portion 143, where the clamping portion 144 is adapted to the clamping groove 145, so that the clamping portion 144 can be inserted into the clamping groove 145. The clamping portion 144 and the connecting portion 143 are spliced to form an L shape, the connecting portion 143 is obliquely arranged at two sides of the pin body 141, when the clamping portion 144 is inserted into the clamping groove 145, the connecting portion 143 is tightly attached to the pin body 141, and the pin assembly 140 can be just inserted into the mounting hole 133.

A guiding groove 146 is formed in the clamping groove 145, and a guiding piece 147 is arranged on the connecting portion 143, wherein the guiding piece 147 is slidably arranged in the guiding groove 146. In order to enable the clamping portion 144 to slide in the clamping groove 145, a guiding groove 146 is formed in the clamping groove 145, and a guiding piece 147 is arranged on the connecting portion 143, so that the connecting portion 143 can slide stably in the clamping groove 145. Since the rotation track of the elastic arm 142 is arc-shaped, the guide groove 146 is also arc-shaped.

A spring 148 is further disposed in the guide groove 146, one end of the spring 148 is fixed at the bottom of the guide groove 146, and the other end is fixed at the connecting portion 143. In order to enable the elastic arm 142 to be rapidly restored to its shape after being pressed, a spring 148 is installed in the guide groove 146, one end of the spring 148 abuts against the bottom of the guide groove 146, and the other end is fixed to the connection portion 143.

The corners of the connecting portion 143 are further provided with rounded corners 149. The elastic arm 142 and the pin body 141 are connected to form a connection ring 150, so that the connection wire is electrically connected to the pin body 141. The connecting ring 150 is electrically connected with the connecting wire, and the connecting ring 150 is arranged, so that the connecting wire is convenient to electrically connect with the connecting ring 150 in multiple directions, and convenience and quickness are realized.

The end cap assembly 130 is riveted to the housing 100.

The end cover body 131 is further provided with a heat dissipation hole 160. The heat dissipation holes 160 improve the heat dissipation degree of the motor, thereby greatly improving the performance of the motor.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A pin protection system of a direct current motor is characterized in that: comprising the steps of (a) a step of,

2. A pin protection system for a dc motor as set forth in claim 1, wherein:

the elastic arm comprises a connecting part and a clamping part connected with the connecting part, wherein,

3. A pin protection system for a dc motor as set forth in claim 2, wherein:

a guide groove is arranged in the clamping groove, a guide sheet is arranged on the connecting part, wherein,

the guide piece is arranged in the guide groove in a sliding way.

4. A pin protection system for a dc motor as set forth in claim 3, wherein:

the guide groove is internally provided with a spring, one end of the spring is fixed at the bottom of the guide groove, and the other end of the spring is fixed at the connecting part.

5. A pin protection system for a dc motor as set forth in claim 2, wherein:

the corner of connecting portion still is equipped with the chamfer.

6. A pin protection system for a dc motor as set forth in claim 1, wherein:

the elastic arm is connected with the pin body to form a connecting ring, so that the connecting wire is electrically connected with the pin body.

7. A pin protection system for a dc motor as set forth in claim 1, wherein:

the end cover assembly is riveted on the shell.

8. A pin protection system for a dc motor as set forth in claim 1, wherein:

and the end cover body is also provided with a heat dissipation hole.