CN115441624A - A wiring structure, stator and motor - Google Patents

Abstract

The invention provides a wiring structure, a stator and a motor, wherein the wiring structure comprises: the stator comprises a stator and is characterized by comprising a first connecting plate, wherein the first connecting plate can be installed on the end face of the stator, a second connecting plate is arranged on the first connecting plate, the second connecting plate is opposite to a winding unit of the stator, a first groove is formed in the second connecting plate, and enameled wires and/or connector lugs of two adjacent winding units on the stator can be clamped in the first groove. The defects that the enameled wire is easy to damage due to the fact that the end of the enameled wire needs to be bent when being welded on the control panel in the prior art can be overcome.

Description

A wiring structure, stator and motor

technical field

The invention relates to the technical field of motors, in particular to a wiring structure, a stator and a motor.

Background technique

At present, high-power brushless DC motors for loads of 20 hp and above realize high-efficiency production of the stator through the block-wound stator into a circle structure, and each winding unit outputs the head and tail of the enameled wire. The head and tail of the enameled wire are welded on the control board, and the control board is fixed on the winding stator. However, during the work of this structure, the enameled wire head needs to be bent when it is welded on the control board, which is easy to damage the enameled wire; the insulation distance of the installation hole of the control board is not enough. False welding of the enameled wire head and poor wiring will cause hidden dangers in the quality of the motor, which will seriously cause the motor to burn out.

Contents of the invention

Therefore, the present invention provides a wiring structure, a stator and a motor, which can overcome the defects in the prior art that the enameled wire ends need to be bent when being welded on the control board, and the enameled wires are easily damaged.

In order to solve the above problems, the present invention provides a wiring structure, which includes:

The first connecting plate, the first connecting plate can be installed on the end surface of the stator, the first connecting plate is provided with a second connecting plate, the second connecting plate is opposite to the winding unit of the stator, so A first groove is provided on the second connecting plate, and the enameled wires and/or lugs of two adjacent winding units on the stator can be snapped into the first groove.

In some embodiments, the first connecting plate is cylindrical, and a plurality of second connecting plates are arranged at intervals on the inner peripheral wall of the first connecting plate along the circumferential direction of the first connecting plate.

In some embodiments, one end of the first connecting plate is connected to the stator, and the other end is connected to a fourth connecting plate, and pin holes are provided on the fourth connecting plate, and the enameled wire of the stator and the power line pass through the connected to the pin holes mentioned above.

In some embodiments, the fourth connecting plate has a first end and a second end, the first end and the second end are respectively located on both sides of the first connecting plate, and the first end and the The second connecting board is opposite, and the pin hole is located on the fourth connecting board near the second end relative to the first end, and the pin hole is provided with a pin.

In some embodiments, a third connecting plate is arranged on the first end, and the third connecting plate is arranged toward the stator, and the connection between the third connecting plate, the second connecting plate and the first connecting plate A second groove is enclosed between them, and the second groove is opposite to the first groove.

In some embodiments, one end of the second connecting plate is connected to the first connecting plate, and the other end is provided with a fifth connecting plate, and the first connecting plate has a first side facing away from the fifth connecting plate , the fifth connecting plate has a second side facing away from the first connecting plate, the fifth connecting plate is disposed toward the stator, the second connecting plate, the first connecting plate and the fifth connecting plate A card slot is enclosed between them, and the card slot can be card-connected with the stator.

In some embodiments, in the projection plane of the longitudinal section of the stator, the radial extension of the stator is the X-axis, the radially outward direction is the positive direction of the X-axis, and the first side surface The included angle (0-90°) between the normal line and the positive direction of the X-axis, and the included angle (90-180°) between the normal line of the second side surface and the positive direction of the X-axis.

In some embodiments, protrusions are disposed on the first side and the second side, and the protrusions are disposed close to the stator relative to the second connecting plate.

The present invention also provides a stator, which includes the wiring structure described in any one of the preceding items.

The present invention also provides a motor, which includes the above-mentioned stator.

The invention provides a wiring structure, a stator and a motor. The first connecting plate is installed at the end of the stator, the second connecting plate is opposite to the winding unit of the stator, and the enameled wires and/or The wiring head can be clamped in the first groove, and the enameled wires of two adjacent winding units are wrapped and placed on the wiring head to ensure that the wire ends are neat. When the wiring head is placed in the first groove, due to the second connecting plate It is arranged on the first connecting plate, so that there is an insulation gap between the terminal and the end surface of the winding unit and the material of the end cover, which increases reliability. The enameled wire and/or terminal is placed in the first groove, neither bending the enameled wire nor damaging it The enameled wire is easy to operate, and the use of the second connecting plate increases the additional insulation, which makes the insulation performance of the high-power motor better.

Description of drawings

Fig. 1 is the structural representation of the wiring structure of the embodiment of the present invention;

Fig. 2 is the front view of the wiring structure of the embodiment of the present invention;

3 is a partial enlarged view of the wiring structure of the embodiment of the present invention;

4 is a schematic structural diagram of a third connecting plate in the wiring structure according to an embodiment of the present invention;

5 is a front view of a wiring structure according to another embodiment of the present invention;

FIG. 6 is a partially enlarged view of a wiring structure according to another embodiment of the present invention.

The reference signs are indicated as:

1. The first connecting plate; 2. The pin; 3. The protrusion; 4. The winding; 5. The second groove; 6. The pin hole; 7. The first groove; 8. The second connecting plate; 9. The third connecting plate; 10, the fourth connecting plate; 11, the fifth connecting plate; 12, the skeleton; 13, the iron core.

detailed description

Referring to Fig. 1 to Fig. 6, according to an embodiment of the present invention, a wiring structure is provided, including: a first connecting plate 1, the first connecting plate 1 can be installed on the end face of the stator, the first The connecting plate 1 is provided with a second connecting plate 8, the second connecting plate 8 is opposite to the winding unit of the stator, the second connecting plate 8 is provided with a first groove 7, and the stator is connected to the The enameled wires and/or wire ends adjacent to the two winding units can be snapped into the first groove 7 . In this technical solution, the first connecting plate 1 is installed at the end of the stator, the second connecting plate 8 is opposite to the winding unit of the stator, preferably, the gap between the second connecting plate 8 and the adjacent winding unit of the stator The positions are opposite, the enameled wires and/or lugs of two adjacent winding units on the stator can be clamped in the first groove 7, and the enameled wires of the two adjacent winding units are wrapped and placed on the lugs to ensure that the wire ends are neat , when the terminal is placed in the first groove 7, since the second connecting plate 8 is arranged on the first connecting plate 1, there is an insulating gap between the terminal and the end surface of the winding unit and the end cover material, which increases reliability, The enameled wire and/or lugs are placed in the first groove 7, which does not bend the enameled wire or damage the enameled wire, and is easy to operate. The use of the second connecting plate 8 increases additional insulation, making the insulation performance of the high-power motor better. See As shown in FIG. 2 , the stator is composed of a skeleton 12 , an iron core 13 and a winding 4 , the iron core 13 is sleeved on the skeleton 12 , and the winding 4 is wound on the skeleton 12 to form a winding unit.

The wiring structure of the present invention is used in conjunction with the winding stator, and the wire ends of the winding stator are directly wrapped and placed in the first groove 7 of the wiring structure, which neither bends the enameled wire nor damages the enameled wire, and is easy to operate, and prevents insufficient insulation distance and virtual welding The use of the protective cover increases the additional insulation, which makes the insulation performance of the high-power motor better. The wiring structure of the present invention is a double-groove ring structure, and the first groove 7 and the second groove 5 are arranged between the upper and lower end faces, which is convenient for placing the wire ends after wrapping between the two enameled wires of the winding stator, ensuring that the wire ends are not scattered, and are in line with the end faces of the windings. There is additional insulation between the material and the end cover to increase reliability; the lower end surface of the wiring structure is designed as a card slot, and the outer surface is designed as an outwardly expanding inclined plane or a round surface with bumps. The outwardly expanding inclined plane can be directly inserted into the skeleton. The force makes the protective cover and the frame tightly connected. The bump type can inlay the bump into the frame, which is tightly inlaid through the concave and convex, and the groove is placed on the end face of the winding to block the insulation of the winding and the upper surface material and increase reliability; the upper end face is There are 6 planes with multiple pin holes, the planes are close to the frame plane, and can be welded tightly through the pin holes without loosening, which comprehensively realizes the easy wiring of the stator and avoids hidden dangers in quality.

In some embodiments, the first connecting plate 1 is cylindrical, and along the circumferential direction of the first connecting plate 1, a plurality of second connecting plates 8 are arranged at intervals on the inner peripheral wall of the first connecting plate 1 . In this technical solution, as shown in FIG. 1, along the circumferential direction of the first connecting plate 1, a plurality of second connecting plates 8 are arranged at intervals on the inner peripheral wall of the first connecting plate 1, so that the wiring structure of the present invention It is more convenient to install and use. The enameled wire and/or terminal of the winding unit are placed in the first groove 7 through the interval between the adjacent second connecting plates 8, and the first groove 7 is placed along the first connecting plate 1. The circumferential direction is arranged, and at least three first grooves 7 are arranged, so that the bridge wire of the enameled wire just passes through the second connecting plate 8, so as to avoid bending and damage of the enameled wire.

In some embodiments, one end of the first connecting plate 1 is connected to the stator, and the other end is connected to the fourth connecting plate 10, and the fourth connecting plate 10 is provided with a pin hole 6, and the enameled wire of the stator is connected to the stator. The power lines are connected through the pin holes 6 . In this technical solution, as shown in FIG. 2, the first end is opposite to the second connecting plate 8, and the pin hole 6 is opposite to the second connecting plate 8. When the first connecting plate 1 is cylindrical, the The four connecting plates 10 are ring-shaped. Along the circumferential direction of the four connecting plates 10, a plurality of pin holes 6 are arranged at intervals on the four connecting plates 10. The pin 2 on the pin hole 6 is connected, and there is no need to wind it on the stator. At least four holes are in the same position between the pin hole 6 and the pin hole of the skeleton.

In some embodiments, the fourth connecting plate 10 has a first end and a second end, the first end and the second end are respectively located on both sides of the first connecting plate 1, and the first end and The second connecting plate 8 is opposite, and the pin hole 6 is located on the fourth connecting plate 10 near the second end relative to the first end, and the pin hole 6 is provided with Pin 2. In this technical solution, as shown in FIG. 6, the fourth connecting plate 10 has a first end and a second end, and the first end and the second end are respectively located on both sides of the first connecting plate 1, so The first end is opposite to the second connecting plate 8, and the pin hole 6 is located on the fourth connecting plate 10 near the second end relative to the first end, so that the winding unit The input end and the output end are respectively located on both sides of the first connection board 1, to avoid mutual interference between the input end and the output end, place the enameled wire lead on the pin 2, and then place the power cord on the pin 2 , Welding is enough, so as to achieve the effect of fixing the wiring structure and improve the stability of the wiring structure.

In some embodiments, a third connecting plate 9 is arranged on the first end, and the third connecting plate 9 is arranged toward the stator. The third connecting plate 9, the second connecting plate 8 and the first A second groove 5 is enclosed between a connecting plate 1 , and the second groove 5 is opposite to the first groove 7 . In this technical solution, as shown in Fig. 3, through the second groove 5, the enameled wire in the first groove 7 can be limited, so that when the enameled wire in the first groove 7 is too much, the enameled wire is extruded. The first groove 7 is adjusted on the stator, which affects the winding unit. There is a gap between the third connecting plate 9 and the second connecting plate 8, so as to facilitate the removal and installation of the enameled wire and facilitate maintenance.

In some embodiments, as shown in FIG. 4, one end of the second connecting plate 8 is connected to the first connecting plate 1, and the other end is provided with a fifth connecting plate 11. The first connecting plate 1 has a The first side of the fifth connecting plate 11, the fifth connecting plate 11 has a second side facing away from the first connecting plate 1, the fifth connecting plate 11 is arranged towards the stator, and the fifth connecting plate 11 is arranged toward the stator. A clamping slot is enclosed between the two connecting plates 8 , the first connecting plate 1 and the fifth connecting plate 11 , and the clamping slot can be clamped with the stator. In this technical solution, when the first connecting plate 1 is cylindrical, the fifth connecting plate 11 is also cylindrical, and the second connecting plate 8 is annular. The second connecting plate 8, the first connecting plate 1 and the second connecting plate There are slots enclosed between the five connecting plates 11, and the slots can be clamped to the stator. Specifically, the winding units on the stator can be clamped through the slots, so that the wiring structure is installed on the stator. The second connecting plate 8 also It can insulate the winding unit and the enameled wire in the first groove 7 .

In some embodiments, as shown in FIG. 6 , in the projection plane of the longitudinal section of the stator, the radial extension of the stator is the X axis, and the radially outward direction is the positive direction of the X axis, The included angle between the normal of the first side surface and the positive direction of the X-axis is 0-90°, and the included angle between the normal line of the second side surface and the positive direction of the X-axis is 90-180°. In this technical solution, the angle between the normal of the first side surface and the positive direction of the X-axis is 0° to 90°, and the angle between the normal line of the second side surface and the positive direction of the X-axis is 90° to 90°. 180°, so that the second side and the first side are arranged in a figure-eight shape, specifically, the second side and the first side are an outwardly expanding slope, and the first connecting plate 1 and the fifth connecting plate 11 pass through the second side, the first side Connected with the winding stator frame, the expanded slope type effectively utilizes the external expansion of the force to strengthen the frame and the protective cover to be tightly connected, so that the protective cover is not easy to fall off, and the wiring structure is effectively stabilized.

In some embodiments, protrusions 3 are disposed on the first side and the second side, and the protrusions 3 are disposed close to the stator relative to the second connecting plate 8 . In this technical solution, as shown in FIG. 3, when the first connecting plate 1 and the fifth connecting plate 11 are cylindrical, the first side and the second side are circular surfaces with protrusions 3, and the protrusion type can be The protrusions 3 are embedded into the framework, and the reliability of the wiring structure is increased by embedding closely with the framework 10 by concave-convex embedding.

In the prior art, a high-power brushless DC motor is used for a load of 20 horsepower or more. The brushless DC motor is composed of a stator and a rotor. The stator is composed of an even number of wound stators and a protective cover. Each wound stator outputs two The wire ends of the enameled wire are connected end to end through a certain connection method, and three power wires and a common terminal are output to realize the smooth operation of the motor with high power.

In the existing technology, when the winding stator and the control board are connected, it is easy to cause bending damage to the wire sheath, virtual welding, and insufficient insulation distance of the welding point of the power lead wire of the control board when the enameled wire of the winding stator is welded, which leads to breakdown of the stator when the motor is energized. Invent a wiring structure to replace the control panel. The wiring structure as a whole is a ring structure with grooves, including the upper end surface, the first groove 7 and the second groove 5 structural design, wherein the bottom surface of the first groove 7 is designed as an arc surface and a plane with a bridge line, The second groove 5 cavity groove is formed with the upper end surface, which is convenient for the placement of the bridge wire and the connection of the wire end, and is not easy to be exposed, effectively isolating the wire end from the enameled wire, the wire end and the end cover surface, and increasing the insulation effect; the bottom of the wiring structure is designed as The card slot structure, the card slot and the end face of the winding 4, effectively isolate the wire end and the end face of the winding. The outer reinforcement frame and the wiring structure are tightly connected, and the bump type forms a concave-convex fit with the inner surface of the frame 12, so that the wiring structure is not easy to fall off, and the wiring structure is effectively stabilized; the upper surface of the wiring structure is designed as a ring with multiple pin holes 6 The plane is attached to the top of the skeleton 12, and the wiring structure and the skeleton can be fastened by pin welding; this wiring structure not only solves the problem of placing the winding stator bridge wire and the connecting wire head, but also strengthens the insulation of the stator and improves reliability.

The stator with this wiring structure is directly wrapped with seamless adhesive tape between the head and tail of the two winding stators when wiring, and the thread ends are placed in the middle groove of the wiring structure. The three-phase tail ends are placed in the same way when connecting, which can ensure The wire ends are tightly connected without loosening, and are isolated by the wiring structure, and the insulation strength is enhanced. The three-phase head leads and the power wires are fixed at the pin holes of the wiring structure and the skeleton. The quality problems of welding, wire damage and insufficient insulation distance.

The present invention also provides a stator, which includes the above wiring structure.

The present invention also provides a motor, which includes the above-mentioned stator.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range. The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (10)

1. A wiring structure, characterized in that: comprising: a first connecting plate (1), the first connecting plate (1) can be installed on the end face of the stator, the first connecting plate (1) is provided with The second connecting plate (8), the second connecting plate (8) is opposite to the winding unit of the stator, the second connecting plate (8) is provided with a first groove (7), the stator The enameled wires and/or wire ends of two adjacent winding units can be snapped into the first groove (7). 2. The wiring structure according to claim 1, characterized in that: the first connecting plate (1) is cylindrical, along the circumferential direction of the first connecting plate (1), the first connecting plate ( 1) A plurality of second connecting plates (8) are arranged at intervals on the inner peripheral wall. 3. The wiring structure according to claim 1, characterized in that: one end of the first connecting plate (1) is connected to the stator, and the other end is connected to a fourth connecting plate (10), the fourth connecting plate (10) is provided with a pin hole (6), and the stator enameled wire and the power line are connected through the pin hole (6). 4. The wiring structure according to claim 3, characterized in that: the fourth connecting plate (10) has a first end and a second end, and the first end and the second end are respectively located at the first connection On both sides of the board (1), the first end is opposite to the second connecting board (8), and the pin hole (6) is located on the fourth connecting board (10) relative to the Where the first end is close to the second end, a pin (2) is arranged on the pin hole (6). 5. The wiring structure according to claim 3, characterized in that: a third connecting plate (9) is arranged on the first end, and the third connecting plate (9) is arranged facing the stator, and the first connecting plate (9) is arranged toward the stator. A second groove (5) is surrounded between the three connecting plates (9), the second connecting plate (8) and the first connecting plate (1), and the second groove (5) is connected to the first connecting plate (1). A groove (7) is opposite. 6. The wiring structure according to claim 1, characterized in that: one end of the second connecting plate (8) is connected to the first connecting plate (1), and the other end is provided with a fifth connecting plate (11), The first connecting plate (1) has a first side facing away from the fifth connecting plate (11), and the fifth connecting plate (11) has a second side facing away from the first connecting plate (1). On the side, the fifth connecting plate (11) is arranged towards the stator, and a card slot is enclosed between the second connecting plate (8), the first connecting plate (1) and the fifth connecting plate (11), The clamping slot can be clamped with the stator. 7. The connection structure according to claim 6, characterized in that: in the projection plane of the longitudinal section of the stator, the radial extension of the stator is the X axis, and the radially outward direction is the X axis The positive direction of the first side, the angle between the normal of the first side and the positive direction of the X-axis (0 ~ 90 °), the angle between the normal of the second side and the positive direction of the X-axis ( 90～180°). 8. The wiring structure according to claim 6, characterized in that: protrusions (3) are provided on the first side and the second side, and the protrusions (3) are opposite to the second connection A plate (8) is located close to said stator. 9. A stator, characterized in that it comprises the connection structure according to any one of claims 1-8. 10. A motor, characterized by comprising the stator according to claim 9.

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