CN219717985U - Motor cover plate structure - Google Patents

Abstract

The utility model discloses a motor cover plate structure, which comprises an upper end cover, a lower bottom cover, a copper bar, a copper column and a fixing bracket, wherein a containing cavity is formed between the upper end cover and the lower bottom cover; the other end of the copper bar is provided with a lead, the fixed support is fixed on the inner wall of the lower bottom cover, the fixed support is provided with a fixed hole for fixing copper wires in the motor, the lower bottom cover is provided with a connecting groove for passing the copper wires, and the copper wires sequentially pass through the connecting groove and the fixed hole and are connected with the lead. The copper column is connected below one end of the copper bar and welded on the circuit board, and the other end of the copper bar is provided with a lead wire corresponding to the copper column and a copper wire led out by a motor coil winding, so that the problems of circuit board damage, loosening of a welding point and the like caused by poor welding of the copper wire when the copper wire is directly welded on the circuit board are solved; the copper line is fixed through the fixed bolster, prevents that the copper line from crooked causing the inside signal stabilization's of electromagnetic interference motor problem.

Description

Motor cover plate structure

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to a motor cover plate structure.

Background

The motor is commonly called as a motor, and refers to an electromagnetic device for converting electric energy according to electromagnetic induction, so that the motor is widely applied at present, is widely applied to industrial production, household life, transportation means and the like, and is widely applied to various transportation means such as electric bicycles, electric automobiles and the like.

In the traditional motor structure, 3 copper wires led out of a coil winding in the motor are welded with a circuit board, and an end cover is installed above the circuit board for sealing. In actual installation and use, the effect of directly welding the copper wire on the circuit board is poor, and the loosening problem is easy to occur; when the copper wire is connected to the circuit board, the copper wire vibrates due to high-speed rotation of the motor, and the copper wire generates electromagnetic interference and the like which can cause low-voltage signals inside the motor after bending.

Disclosure of Invention

The utility model aims to provide a motor cover plate structure, which is welded on a circuit board by using copper columns, wherein the copper columns are connected with copper wires led out from a motor coil winding through copper bars, so that the problems of electromagnetic interference and the like of signals in a motor caused by bending of the copper wires can be effectively solved.

The technical scheme for realizing the aim of the utility model is as follows: the motor cover plate structure comprises an upper end cover, a lower bottom cover, a copper bar, a copper column and a fixing bracket, wherein a containing cavity is formed between the upper end cover and the lower bottom cover, the copper bar is fixed on the inner wall of the upper end cover, the copper column is fixedly connected below one end of the copper bar, and the copper column is used for being welded with a circuit board; the other end of the copper bar is provided with a lead, the fixed support is fixed on the inner wall of the lower bottom cover, the fixed support is provided with a fixed hole for fixing a copper wire in the motor, the lower bottom cover is provided with a connecting groove for passing through the copper wire, and the copper wire is connected with the lead after sequentially passing through the connecting groove and the fixed hole; and the surface of the copper bar is subjected to plastic package to form a connecting block.

The copper column is connected below one end of the copper bar and welded on the circuit board, and the other end of the copper bar is provided with a lead wire corresponding to the copper column and a copper wire led out by a motor coil winding, so that the problems of circuit board damage, loosening of welding point time and the like caused by poor welding of the copper wire directly welded on the circuit board are solved; the copper wires enter the accommodating cavity in the cover plate structure from the lower bottom cover and are fixed through the fixing support, so that the problem of stable signals in the electromagnetic interference motor caused by bending of the copper wires is prevented; the copper bar surface plastic package can insulate electricity and prevent the problems of electromagnetic interference, signal stability and the like caused by the bending of the internal circuit and the outside because the circuit is arranged in the copper bar.

Further, the fixed bolster includes support frame and connecting plate, the connecting plate is connected the support frame bottom, the support frame has supporting part and fixed part, the supporting part is located the both ends of fixed part, the supporting part the fixed part with form the fixed chamber between the connecting plate, the connecting plate is provided with three first fixed orifices, be provided with three second fixed orifices on the fixed part. After the copper wire enters the accommodating cavity from the lower bottom cover, the copper wire penetrates from the first fixing hole on the connecting plate and enters the fixing part, the corresponding second fixing hole can be arranged in the fixing part according to the specific requirement of a circuit, and further fixing is carried out through the supporting frame.

Further, the supporting portions are obliquely arranged at two ends of the fixing portion, and the supporting portions are obliquely arranged between the supporting portions and the connecting plates. The supporting part that is the inclined plane can be better play the effect of supporting, weight on the fixed part can rely on the supporting part dispersion that the slope set up, better play the fixed effect of supporting.

Further, the fixing support further comprises a fixing block, the fixing block is fixed on the fixing portion, and the fixing block is provided with three third fixing holes. In order to further fix the copper wire set up on the fixed part the fixed block has on the fixed block through the copper wire the third fixed orifices, the fixed block has certain height, the third fixed orifices corresponds to have certain degree of depth, and the copper wire is in it is more stable in the third fixed orifices, can not take place to crooked electromagnetic interference problem that arouses.

Further, the distance between two adjacent first fixing holes and the distance between two adjacent second fixing holes are different in size, three first fixing holes and three second fixing holes are partially corresponding, and three second fixing holes and three third fixing holes are respectively corresponding in position. Because the length of the copper wire led out by the motor winding group may be uneven, the distance between the two non-corresponding fixing holes can be increased by the non-corresponding first fixing holes and the non-corresponding second fixing holes, and the copper wire with longer length can pass through the non-corresponding first fixing holes and the non-corresponding second fixing holes, so that the copper wire in the second fixing holes cannot be bent by redundant lengths, and the electromagnetic interference problem is avoided.

Further, the side surfaces of the two third fixing holes are of an opening structure, and the side surfaces of the corresponding second fixing holes are also of an opening structure, so that copper wires can be placed in the opening structure. Because two first fixed orifices with do not correspond between the second fixed orifices, be inconvenient for copper line installation sets up to the open structure and is convenient for the installation of copper line.

Further, a surface of the fixing block opposite to the fixing portion is a step surface, and the three third fixing holes are respectively located on the step surfaces with different heights. The copper line with need distinguish corresponding circuit when the lead wire is fixed, and the copper line need follow first fixed orifices, second fixed orifices with the third fixed orifices passes, the fixed bolster has certain height and connection space, is difficult for discernment specific circuit's copper line, sets up not co-altitude the third fixed orifices is convenient for discern and distinguish.

Further, connecting portions are arranged below the connecting plates, the sizes of the connecting portions correspond to those of the connecting grooves and are used for being clamped and sealed in the connecting grooves, and fourth fixing holes are formed in the connecting portions. Copper line can get into through the fourth fixed orifices in the motor apron, connecting portion joint is in the spread groove, can be right the motor apron plays sealed effect, avoids dust, water etc. to get into through the spread groove motor apron is inside in the holding intracavity, causes circuit board damage scheduling problem.

Further, the copper wires, the leads and the copper columns are respectively three and correspondingly connected, a welding groove is formed in the upper end cover, the position of the welding groove corresponds to the position of the connection part of the copper wires and the leads, and the leads and the copper wires are convenient to weld. The fixed copper wires and the leads can be welded and fixed conveniently through the welding groove.

By adopting the technical scheme, the utility model has the following beneficial effects: (1) Copper wires led out from the copper columns and the motor coil windings are connected through copper bars by utilizing the copper columns and the circuit board for welding, and the copper wires are replaced by directly welding the copper wires on the circuit board, so that the problems that the copper wires are easy to loosen and the copper wires are welded on the circuit board for a long time and the circuit board is damaged due to poor welding effect are solved; (2) The copper wire is fixed by the fixing support, so that the problem that the copper wire bends to cause electromagnetic interference is prevented; (3) The fixing bracket comprises a supporting frame, a connecting plate and a fixing block, so that the effect of fixing copper wires is good, and the structure is stable; (4) The copper bars and the fixing support are both encapsulated by the surface, so that the electromagnetic interference problem caused by the bending of the internal circuit is further prevented.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which

FIG. 1 is an exploded view of a motor cover plate according to the present utility model;

FIG. 2 is a schematic view of the lower bottom cover structure of the present utility model;

FIG. 3 is a schematic view of a copper bar copper pillar structure according to the present utility model;

FIG. 4 is a schematic view of a fixing bracket according to the present utility model;

fig. 5 is a schematic view of the upper end cap structure in the present utility model.

The reference numerals in the drawings are: 1, an upper end cover; 1-1 a welding groove; 2, a bottom cover is arranged; 2-1 connecting grooves; 3 copper bars; 3-1 copper columns; 3-2 leads; 4, fixing a bracket; 4-1 connecting plates; 4-2 supporting parts; 4-3 fixing parts; 4-4 fixing cavities; 4-5 first fixing holes; 4-6 second fixing holes; 4-7 of fixed blocks; 4-8 third fixing holes; 4-9 step surfaces; 5 copper wire; and 6, connecting parts.

Detailed Description

Examples:

as shown in fig. 1-4, the embodiment provides a motor cover plate structure, which comprises an upper end cover 1, a lower bottom cover 2, a copper bar 3, a copper column 3-1 and a fixing bracket 4, wherein a containing cavity is formed between the upper end cover 1 and the lower bottom cover 2, the copper bar 3 is fixed on the inner wall of the upper end cover 1, the copper column 3-1 is fixedly connected below one end of the copper bar 3, and the copper column 3-1 is used for being welded with a circuit board; the other end of the copper bar 3 is provided with a lead 3-2, the fixed support 4 is fixed on the inner wall of the lower bottom cover 2, the fixed support 4 is provided with a fixed hole for fixing a copper wire 5 in the motor, the lower bottom cover 2 is provided with a connecting groove 2-1 penetrating through the copper wire 5, and the copper wire 5 sequentially penetrates through the connecting groove 2-1 and the fixed hole and then is connected with the lead 3-2; and the surface of the copper bar 3 is subjected to plastic package to form a connecting block. The copper column 3-1 is connected below one end of the copper bar 3 and welded on the circuit board, the other end of the copper bar 3 is provided with a lead wire 3-2 corresponding to the copper column 3-1 and a copper wire 5 led out by a motor coil winding, and the problems that the circuit board is damaged and the welding point is loose due to long time when the copper wire 5 is directly welded on the circuit board and the welding is poor are solved; copper wire 5 is followed lower bottom 2 gets into behind the inside holding chamber of apron structure pass through fixed bolster 4 is fixed, prevents that copper wire 5 from crooked causing the problem of electromagnetic interference motor internal signal stability.

As shown in fig. 4, the fixing bracket 4 includes a supporting frame and a connecting plate 4-1, the connecting plate 4-1 is connected to the bottom of the supporting frame, the supporting frame has a supporting portion 4-2 and a fixing portion 4-3, the supporting portion 4-2 is located at two ends of the fixing portion 4-3, a fixing cavity 4-4 is formed between the supporting portion 4-2, the fixing portion 4-3 and the connecting plate 4-1, the connecting plate 4-1 is provided with three first fixing holes 4-5, and three second fixing holes 4-6 are formed in the fixing portion 4-3. After the copper wire 5 enters the accommodating cavity from the lower bottom cover 2, the copper wire penetrates into the fixing part 4-4 from the first fixing hole 4-5 on the connecting plate 4-1, and the copper wire can enter the corresponding second fixing hole 4-6 in the fixing part 4-4 according to the specific requirement of a circuit, and is further fixed through the supporting frame. The supporting parts 4-2 are obliquely arranged at two ends of the fixing part 4-3, and the supporting parts 4-2 are obliquely arranged between the supporting parts 4-2 and the connecting plate 4-1. The inclined supporting part 4-2 can better play a role in supporting, and the weight on the fixing part 4-3 can be dispersed by the inclined supporting part 4-2, so that the effect of supporting and fixing is better played. The fixing support 4 further comprises a fixing block 4-7, the fixing block 4-7 is fixed on the fixing portion 4-3, and the fixing block 4-7 is provided with three third fixing holes 4-8. In order to further fix the copper wire 5, the fixing block 4-7 is disposed on the fixing portion 4-3, the fixing block 4-7 is provided with the third fixing hole 4-8 through which the copper wire 5 passes, the fixing block 4-7 is provided with a certain height, the third fixing hole 4-8 is correspondingly provided with a certain depth, the copper wire 5 is more stable in the third fixing hole 4-8, and no bending causes electromagnetic interference problem. The distance between two adjacent first fixing holes 4-5 and the distance between two adjacent second fixing holes 4-6 are different, three first fixing holes 4-5 and three second fixing holes 4-6 are partially corresponding, and three second fixing holes 4-6 and three third fixing holes 4-8 are respectively corresponding in position. Because the lengths of the copper wires 5 led out from the motor winding sets may be uneven, the distance between the two non-corresponding fixing holes can be increased by the non-corresponding portions of the first fixing holes 4-5 and the second fixing holes 4-6, and the copper wires 5 with longer lengths can be arranged to pass through the non-corresponding portions of the first fixing holes 4-5 and the second fixing holes 4-6, so that the copper wires 5 passing through the second fixing holes 4-6 cannot be bent due to excessive lengths, and the electromagnetic interference problem is avoided. The side surfaces of the two third fixing holes 4-8 are of an opening structure, and the side surfaces of the corresponding second fixing holes 4-6 are also of an opening structure, so that copper wires 5 can be placed in the opening structure. Because two first fixed orifices with do not correspond between the second fixed orifices, be inconvenient for copper line installation sets up to the open structure and is convenient for the installation of copper line. The surface of the fixing block 4-7 opposite to the fixing part 4-3 is a step surface 4-9, and the three third fixing holes 4-8 are respectively positioned on the step surfaces with different heights. The copper wires 5 and the leads 3-2 need to be distinguished from each other when they are fixed, and the copper wires 5 need to pass through the first fixing holes 4-5, the second fixing holes 4-6 and the third fixing holes 4-8, the fixing support 4 has a certain height and a connecting space, the copper wires 5 of specific lines are not easy to identify, and the third fixing holes 4-8 with different heights are convenient to identify and distinguish. The connecting plate 4-1 is provided with connecting portion 6 below, connecting portion 6 size and connecting groove 2-1's size are corresponding for the joint is sealed in connecting groove 2-1, be provided with the fourth fixed orifices on the connecting portion 6. Copper line 5 can get into through the fourth fixed orifices in the motor apron, connecting portion 6 joint is in the spread groove 2-1 can be right the motor apron plays sealed effect, avoids dust, water etc. to get into through the spread groove 2-1 in the motor apron is inside hold the intracavity, causes circuit board damage scheduling problem.

As shown in fig. 5, the number of copper wires 5, the number of lead wires 3-2 and the number of copper posts 3-1 are three, and are correspondingly connected, a welding groove 1-1 is formed in the upper end cover 1, and the position of the welding groove 1-1 corresponds to the position of the connection position of the copper wires 5 and the lead wires 3-2, so that the lead wires 3-2 and the copper wires 5 can be conveniently welded. The copper wire 5 and the lead wire 3-2 which are fixed in the accommodating cavity can be welded and fixed conveniently through the welding groove 1-1.

Working principle: the copper wire 5 passes through the fourth fixing hole clamped on the connecting part 6 in the connecting groove 2-1, enters the accommodating cavity of the motor cover plate, then sequentially passes through the fourth fixing hole, the first fixing hole 4-5, the second fixing hole 4-6 and the third fixing hole 4-8, and is fixed by using a fixing bracket 4; and then the copper bar is welded and fixed with a lead 3-2 at one end of the copper bar 3, the copper column 3-1 is connected below the other end of the copper bar 3, and the copper column 3-1 is welded on a circuit board, so that a conductive path between the circuit board and a motor coil winding is formed.

While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.

Claims (9)

1. The motor cover plate structure is characterized by comprising an upper end cover (1), a lower bottom cover (2), a copper bar (3), a copper column (3-1) and a fixed support (4), wherein a containing cavity is formed between the upper end cover (1) and the lower bottom cover (2), the copper bar (3) is fixed on the inner wall of the upper end cover (1), the copper column (3-1) is fixedly connected below one end of the copper bar (3), and the copper column (3-1) is used for being welded with a circuit board; the other end of the copper bar (3) is provided with a lead (3-2), the fixed support (4) is fixed on the inner wall of the lower bottom cover (2), the fixed support (4) is provided with a fixed hole for fixing a copper wire (5) in the motor, the lower bottom cover (2) is provided with a connecting groove (2-1) penetrating through the copper wire (5), and the copper wire (5) sequentially penetrates through the connecting groove (2-1) and the fixed hole and then is connected with the lead (3-2); and the surface of the copper bar (3) is subjected to plastic package to form a connecting block.

2. A motor cover plate structure according to claim 1, characterized in that the fixing bracket (4) comprises a supporting frame and a connecting plate (4-1), the connecting plate (4-1) is connected to the bottom of the supporting frame, the supporting frame is provided with a supporting portion (4-2) and a fixing portion (4-3), the supporting portion (4-2) is located at two ends of the fixing portion (4-3), a fixing cavity (4-4) is formed between the supporting portion (4-2), the fixing portion (4-3) and the connecting plate (4-1), three first fixing holes (4-5) are formed in the connecting plate (4-1), and three second fixing holes (4-6) are formed in the fixing portion (4-3).

3. A motor cover plate structure according to claim 2, wherein the supporting portions (4-2) are provided obliquely at both ends of the fixing portion (4-3), and the supporting portions (4-2) are provided obliquely between the supporting portions (4-2) and the connecting plate (4-1).

4. A motor cover structure according to claim 2, characterized in that the fixing bracket (4) further comprises a fixing block (4-7), the fixing block (4-7) is fixed on the fixing portion (4-3), and the fixing block (4-7) is provided with three third fixing holes (4-8).

5. A motor cover plate structure according to claim 4, wherein the distance between two adjacent first fixing holes (4-5) and the distance between two adjacent second fixing holes (4-6) are different in size, three of the first fixing holes (4-5) and three of the second fixing holes (4-6) are partially corresponding, and three of the second fixing holes (4-6) and three of the third fixing holes (4-8) are respectively located corresponding.

6. A motor cover plate structure according to claim 4, characterized in that the sides of two of said third fixing holes (4-8) are open structures, and the sides of the corresponding second fixing holes (4-6) are also open structures for receiving copper wires (5) from said open structures.

7. A motor cover plate structure according to claim 4, wherein the surface of the fixing block (4-7) opposite to the fixing portion (4-3) is a step surface (4-9), and the three third fixing holes (4-8) are respectively located on the step surfaces of different heights.

8. The motor cover plate structure according to claim 2, wherein a connecting portion (6) is disposed below the connecting plate (4-1), the size of the connecting portion (6) corresponds to the size of the connecting groove (2-1), the connecting portion is used for being clamped and sealed in the connecting groove (2-1), and a fourth fixing hole is formed in the connecting portion (6).

9. The motor cover plate structure according to claim 1, wherein three copper wires (5), three lead wires (3-2) and three copper posts (3-1) are respectively and correspondingly connected, a welding groove (1-1) is formed in the upper end cover (1), and the position of the welding groove (1-1) corresponds to the position of the connecting position of the copper wires (5) and the lead wires (3-2) so as to facilitate welding of the lead wires (3-2) and the copper wires (5).