CN220754572U - Motor end cover assembly with limiting structure - Google Patents

Abstract

The utility model discloses a motor end cover assembly with a limiting structure, which comprises: the end cover comprises an end cover shell, a boss arranged in the end cover shell and a circuit board arranged at one end of the boss; be equipped with first lug and second lug on the boss, be equipped with a plurality of screw on first lug and the second lug, one side that first lug is close to the screw is equipped with a plurality of equal-height fixed blocks, the bottom of circuit board is connected with a plurality of lock and attaches the module, the circuit board is installed in the upper end of first lug and second lug, the fixed block is located between circuit board and the first lug. According to the utility model, the limiting structure is formed by the fixing block and the circuit board locking module, and the fixing block is used for limiting the locking position of the screw, so that the defect that the locking is not in place or the locking module is cracked in the circuit board installation process is effectively overcome.

Description

Motor end cover assembly with limiting structure

Technical Field

The utility model relates to the field of motor structures, in particular to a motor end cover assembly with a limiting structure.

Background

The circuit board in the motor is generally fixed in the built-in space of the end cover, the existing circuit board mounting method is that a boss is arranged in the end cover, a step-shaped protruding block is arranged on the boss, a screw hole is arranged on the protruding block, and finally the circuit board is fixed in the end cover through a screw by using an electronic screwdriver, but the mounting method needs to strictly control the torque and the locking position of the screw, and the locking is not in place or the module is locked and cracked due to slight errors.

For example, chinese patent application number CN202211307141.9 is a motor end cover fixing structure, which comprises an end cover main body, a column boss is arranged at the center of one side of the end cover main body, a plurality of supporting seats are arranged on the other side of the end cover main body, the supporting seats and the column boss are positioned at the same side, the height of the column boss is lower than that of the supporting seats, the circuit board and the supporting seats are fixed together, two supporting seats which are arranged oppositely along the radial direction are provided with fixing columns, the circuit board is provided with fixing holes, and the fixing columns penetrate through the fixing holes. According to the motor end cover, the supporting seat higher than the cylindrical boss is arranged, so that the stability of the connecting structure of the circuit board and the motor end cover is improved, the production process is simple, the processing cost is low, the motor end cover needs to have a certain limiting effect on a screw except for a stable connecting structure when the motor end cover is fixed by an electric screwdriver in the connecting process of the motor end cover and the circuit board, the locking range of the screw is limited, the assembly is convenient, and the assembly success rate of the circuit board and the motor end cover cannot be ensured due to the fact that the motor end cover with the supporting seat is easy to bring about difficult assembly due to the problem of the supporting structure.

Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a motor end cover assembly with a limiting structure, which can effectively solve the technical problems.

In order to achieve the purpose of the utility model, the following technical scheme is adopted: motor end cover assembly with limit structure, its characterized in that: the circuit board comprises an end cover shell, a boss arranged in the end cover shell and a circuit board arranged at one end of the boss;

the circuit board is mounted at the upper end of the boss, a first lug and a second lug are arranged at the upper end of the boss, a first fixing block and a second fixing block are coaxially arranged at the upper end of the first lug, a plurality of locking modules are connected to the bottom of the circuit board, and the locking modules are connected to the upper end of the first lug in a clamping mode through the first fixing block and the second fixing block.

Further, one side of the first fixed block is vertically flush with one side of the first bump, and the second fixed block is located at one end far away from the first fixed block.

Further, a plurality of screw holes are uniformly formed between the first fixing block and the second fixing block, and one side, close to the screw holes, of the first fixing block is of a curved surface structure.

Further, one end of the screw hole is of a stud structure, the other end of the screw hole is of a circular arch structure, the circular arch structure comprises a top surface and a bottom surface, the opening of the top surface is larger than the opening of the bottom surface, and the opening of the stud structure is matched with the shape structure of the bottom surface of the circular arch structure.

Further, the radian of the curved surface of the first fixed block is identical to the radian of the top surface, and the radian of the curved surface is 100-140 degrees.

Further, the second fixed block is abutted against the second bump, one side, close to the screw hole, of the second fixed block is of a curved surface structure, and the curved surface radian of the second fixed block is identical with that of the first fixed block.

Further, a rubber insulating cover is paved inside the end cover shell.

Further, a clamping piece is arranged on one side of the rubber insulating cover, and a limiting groove matched with the second fixing block in shape and structure is formed in the clamping piece.

Further, one side of the rubber insulating cover is provided with a ladder-shaped structure which is matched with one side shape structure of the first bump.

Further, the rubber insulating cover is detachably connected with the boss.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the limiting structure is formed by the fixing block and the circuit board locking module, and the position of screw locking is limited by the fixing block, so that the defect that the locking is not in place or the locking module is cracked in the circuit board installation process is effectively overcome.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

Fig. 1 is an exploded view of an embodiment of the present utility model.

Fig. 2 is a top view of a boss according to an embodiment of the present utility model.

Fig. 3 is a perspective view of an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of an embodiment of the present utility model.

In the figure: 1. the end cover comprises an end cover shell, a boss, a top surface, a bottom surface, a first lug, a second lug, a screw hole, a first fixing block, a second fixing block, a clamping piece, a locking module, a rubber insulating cover, a limiting groove and a circuit board.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. When an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

As shown in fig. 1 to 4, an embodiment of the present utility model is a motor end cover assembly with a limit structure, which includes an end cover housing 1, a boss 2 provided in the end cover housing 1, and a circuit board b provided at one end of the boss 2; the circuit board b is arranged at the upper end of the boss 2, a first bump 5 and a second bump 6 are arranged at the upper end of the boss 2, the height of the second bump 6 is higher than that of the first bump 5, a first fixed block 8 and a second fixed block 9 with the same height are respectively arranged at the left side and the right side of the upper end of the first bump 5, one side of the first fixed block 9 is vertically flush with one side of the first bump 5, the second fixed block 9 is arranged at one end far away from the first fixed block 8, one end of the second fixed block 9 is abutted with one end of the second bump 6, and the heights of the first fixed block 8 and the second fixed block 9 are higher than that of the second fixed block 6; the upper ends of the first protruding block 5 and the second protruding block 6 are respectively provided with a plurality of screw holes 7, the screw holes 7 arranged at the upper end of the first protruding block 5 are uniformly arranged between the first fixing block 8 and the second fixing block 9, one sides of the first fixing block 8 and the second fixing block 9 close to the screw holes 7 are of curved surface structures, the bottom of the circuit board b is connected with a plurality of locking modules 11 which are matched with the first fixing block 8 and the second fixing block 9 in height, and the first fixing block 8 and the second fixing block 9 are clamped with the locking modules 11 to form a limiting structure, so that the positions of screws entering the screw holes 7 are limited.

As shown in fig. 2 or fig. 3, one end of the screw hole 7 is a stud structure, the other end is a dome structure, the dome structure comprises a top surface 3 and a bottom surface 4, the opening of the top surface 3 is larger than the opening of the bottom surface 4, and the opening of the stud structure is matched with the shape structure of the bottom surface 4 of the dome structure. The fixed block 6 is of a curved surface structure near one side of the screw hole 7, the radian of the curved surface is identical to that of one side of the top surface 3, the radian of the curved surface is 100-140 degrees, screws can conveniently enter the screw hole 7, and locking is simpler. The inside rubber insulation lid 12 of dismantling the connection of having laid of end cover casing 1, rubber insulation lid 12 upper end is equipped with upwards extends fastener 10, is equipped with in the fastener 10 and is equipped with the spacing groove 13 that coincide with second fixed block 9 shape structure, and fixed block 6 joint is in spacing groove 13, and rubber insulation lid 12 passes through fixed block 6 joint in the end cover inside, and rubber insulation lid 12 one side is equipped with the echelonment structure that agrees with boss 2 one side shape structure mutually, and connection structure is more stable.

Working principle: the first fixing block 8 and the second fixing block 9 which are arranged at the upper end of the first bump 5 and the locking module 11 form a limiting structure, the limiting structure limits the locking position of the screw, and the screw fixes the circuit board b and the end cover shell 1 through the limiting structure.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims (10)

1. Motor end cover assembly with limit structure, its characterized in that: comprises an end cover shell (1), a boss (2) arranged in the end cover shell (1) and a circuit board (b) arranged at one end of the boss (2);

the circuit board (b) is installed in boss (2) upper end, the upper end of boss (2) is equipped with first lug (5) and second lug (6), the upper end coaxial line of first lug (5) is provided with first fixed block (8) and second fixed block (9), the bottom of circuit board (b) is connected with a plurality of lock and attaches module (11), lock attaches module (11) through first fixed block (8) and second fixed block (9) joint in the upper end of first lug (5).

2. The motor end cap assembly with limiting structure of claim 1, wherein: one side of the first fixed block (8) is vertically flush with one side of the first bump (5), and the second fixed block (9) is arranged at one end far away from the first fixed block (8).

3. The motor end cap assembly with limiting structure of claim 2, wherein: a plurality of screw holes (7) are uniformly formed between the first fixing block (8) and the second fixing block (9), and one side, close to the screw holes (7), of the first fixing block (8) is of a curved surface structure.

4. The motor end cap assembly with limiting structure of claim 3, wherein: one end of the screw hole (7) is of a stud structure, the other end of the screw hole is of a circular arch structure, the circular arch structure comprises a top surface (3) and a bottom surface (4), an opening of the top surface (3) is larger than an opening of the bottom surface (4), and the opening of the stud structure is matched with the shape structure of the bottom surface (4) of the circular arch structure.

5. The motor end cap assembly with limiting structure of claim 4, wherein: the radian of the curved surface of the first fixed block (8) is identical to the radian of the top surface (3), and the radian of the curved surface is 100-140 degrees.

6. The motor end cap assembly with limiting structure of claim 5, wherein: the second fixing block (9) is abutted with the second bump (6), one end of the second fixing block (9) far away from the abutting surface is of a curved surface structure, and the curved surface radian of the second fixing block (9) is identical with that of the first fixing block (8).

7. The motor end cap assembly with limiting structure of claim 1, wherein: a rubber insulating cover (12) is paved inside the end cover shell (1).

8. The motor end cap assembly with limiting structure of claim 7, wherein: one side of the rubber insulating cover (12) is provided with a clamping piece (10), and a limiting groove (13) which is matched with the shape and structure of the second fixing block (9) is arranged in the clamping piece (10).

9. The motor end cap assembly with limiting structure of claim 8, wherein: one side of the rubber insulating cover (12) is provided with a ladder-shaped structure which is matched with the shape structure of one side of the first lug (5).

10. The motor end cap assembly with limiting structure of claim 9, wherein: the rubber insulating cover (12) is detachably connected with the boss (2).