CN220915034U

CN220915034U - Coil framework assembly for motor

Info

Publication number: CN220915034U
Application number: CN202322615810.5U
Authority: CN
Inventors: 蓝小荔; 吴招军; 尹传胜
Original assignee: Guangdong Huilipu Intelligent Technology Co ltd
Current assignee: Guangdong Huilipu Intelligent Technology Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-05-07
Anticipated expiration: 2033-09-25

Abstract

The utility model discloses a coil framework component for a motor, which is characterized in that a first side concave surface and a first side convex surface which face a central axis are arranged on a terminal table protruding from the upper surface of an upper framework, the distance between a pin hole of the first side concave surface and a pin hole of an adjacent first side convex surface in the X-axis direction is equal, the distance between the pin hole end surface on the first side concave surface and the pin hole end surface of the adjacent first side convex surface in the Y-axis direction is L, and L is more than 0, so that pins on two adjacent pin holes are staggered, and the winding space on the pins is enlarged; an inverted slope is formed between the upper surface of the terminal table and the first side concave surface and the first side convex surface respectively, and the inverted slope limits the bending angle of the winding section and has a reference bending angle, so that the loose wire treatment cannot cause over loose or over tight enameled wires.

Description

Coil framework assembly for motor

[ Field of technology ]

The utility model relates to the technical field of motors, in particular to a coil skeleton assembly for a motor.

[ Background Art ]

Motors are an important basic product for widespread use in the automation field, in which small motors are connected by means of leads, i.e. by means of direct connection in which the leads are directly connected to respective terminals for supplying current to the motor stator windings.

The connection of lead wire needs to use the contact pin, and the contact pin is connected on the coil former for twine with corresponding winding enameled wire, still need to carry out the pine to the winding line on the contact pin and handle, normally buckle certain angle to the contact pin, but does not inject the angle of buckling to the contact pin, causes the angle of buckling too big or undersize, and the effect of pine line is not good. For example, chinese patent publication (bulletin) No. CN214479940U is a stator frame assembly, which includes a frame and a terminal block. The armature provides a winding space having a central axis and a rotor cavity for winding the winding wire. The terminal block has a terminal block body protruding from an end wall of the backbone in a direction of the central axis, the terminal block body having a first side facing the rotor cavity, a second side facing away from the rotor cavity, and a plurality of pin holes extending between the first side and the second side for mounting terminal pins. The pin hole has a limit plane for blocking rotation of the terminal pin inserted into the pin hole around an extending direction of the pin hole.

However, the above patent has the following problems: 1. the wire dividing groove is not arranged, and the wire winding treatment is inaccurate; 2. the terminal pins on the first side face are uniformly arranged in a straight line, and the space for winding wires at the terminal pins is small; 3. the bending angle of the second lead section is not limited.

The present utility model has been made in view of the above problems.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provide a coil skeleton assembly for a motor, which can improve the problems existing in the prior art and has the characteristic of stable structure.

The utility model is realized by the following technical scheme:

The coil framework assembly for the motor comprises an upper framework, a lower framework and a contact pin, wherein the upper framework is buckled above the lower framework, and the upper framework and the lower framework are buckled and provided with central axes; the utility model provides a terminal block that upper surface edge is equipped with upwards outstanding, the terminal block has first side concave surface, the first side convex surface towards the central axis, one side that the terminal block kept away from the central axis is equipped with the second side, be equipped with the contact pin hole that is used for installing the contact pin between first side concave surface and the second side and between first side convex surface and the second side, the contact pin hole of first side concave surface equals with the contact pin hole of adjacent first side convex surface in the horizontal spacing, the contact pin hole terminal surface on the first side concave surface is L with the contact pin hole terminal surface of adjacent first side convex surface in the Y axial direction apart from, and L >0 for contact pin on two adjacent contact pin holes staggers the configuration.

An inverted slope is arranged between the first side concave surface and the upper surface of the terminal block, an inverted slope is arranged between the first side convex surface and the upper surface of the terminal block, an included angle between the inverted slope and the first side concave surface 310 or the first side convex surface 320 is alpha, and O < alpha <60 degrees.

The contact pin has linkage segment, wire winding section, the linkage segment to the wire winding section of central axis (001) direction bending type, the angle of buckling of wire winding section is restricted to the chamfer, the contained angle between wire winding section of buckling and the concave surface of first side and the contained angle between wire winding section of buckling and the convex surface of first side are phi, and 0< phi <60 °.

The pin comprises a pin hole, a first side concave surface and a first side convex surface, wherein the pin hole is provided with a limiting groove at a port of the pin hole, and the limiting groove is used for accommodating the winding section which is inserted into the pin hole and bends towards the direction of the central axis (001) relative to the connecting section, and limiting the rotation of the winding section.

And a wire dividing groove is arranged on two sides of each pin hole of the second side surface.

The distance between the pin hole port of the first side concave surface and the pin hole port of the first side convex surface in the X-axis direction is I, and I=1.5 mm, so that the linear distance between the pin hole port of the first side concave surface and the pin hole port of the first side convex surface is S, and S is more than 1.5mm.

The height of the terminal stand protruding out of the upper surface of the upper framework is 2mm-3mm.

The upper framework is provided with a winding space for winding the coil, and a transition face is arranged between the upper bottom surface and the second side surface of the winding space of the upper framework.

The limiting grooves of the first side concave surface and the first side convex surface are provided with groove bottom surfaces perpendicular to the central axis, and the distances between the groove bottom surfaces and the circle centers of the pin holes of the first side concave surface and the circle centers of the pin holes of the first side convex surface of the limiting grooves are 1mm-2mm in the direction of the central axis.

The contact pin include long contact pin and short contact pin, wherein the linkage segment of long contact pin is slightly longer than the linkage segment of short contact pin, and long contact pin cooperatees with the spacing recess of first side convex surface, and spacing recess and the short contact pin of first side concave surface cooperatees, the height of the wire winding section of long contact pin and short contact pin equals.

Compared with the prior art, the utility model has the following advantages:

1. The wire dividing groove is arranged, and the wire dividing function of the wire dividing groove can enable the enameled wire to keep a certain distance from the contact pin on the second side surface, so that the wire winding treatment is more accurate.

2. The winding section bent at the first side concave surface and the first side convex surface is provided with an inverted inclined surface to limit the bending angle, so that the tightening degree of the enameled wire is reduced.

3. Two pin holes adjacent to the first side concave surface and the first side convex surface have horizontal distances and vertical distances, and correspondingly, the winding space on the pin is also enlarged.

[ Description of the drawings ]

FIG. 1 is a diagram of a skeletal separation of an embodiment of the present utility model.

Fig. 2 is a front view of an embodiment of the utility model without a pin.

FIG. 3 is a top view of an embodiment of the utility model without a pin.

Fig. 4 is a perspective view of a pin according to an embodiment of the present utility model.

Fig. 5 is one of the top views of the pin according to the embodiment of the present utility model.

FIG. 6 is a second top view of a pin according to an embodiment of the present utility model.

Fig. 7 is a cross-sectional view A-A of fig. 6.

Fig. 8 is a partial enlarged view of A1 of fig. 7.

FIG. 9 is a third top view of a pin according to an embodiment of the present utility model.

Fig. 10 is a B-B cross-sectional view of fig. 9.

Fig. 11 is a partial enlarged view of B1 of fig. 10.

Fig. 12 is a schematic diagram of the wire winding of the enameled wire on the pin according to an embodiment of the utility model.

Fig. 13 is a schematic diagram showing the end of the wire winding on the pin according to the embodiment of the present utility model.

[ Detailed description ] of the invention

Embodiments of the present utility model will be described in detail below with reference to fig. 1-13.

As shown in fig. 1, a coil bobbin assembly for a motor includes an upper bobbin 100, a lower bobbin 200, and pins 340, wherein the upper bobbin 100 is fastened above the lower bobbin 200, the upper bobbin 100 and the lower bobbin 200 are fastened and then have a central axis 001, a terminal block 300 protruding upward is provided at an edge of an upper surface of the upper bobbin 100, the terminal block 300 has a first concave side 310 facing the central axis 001, a first convex side 320, a second side 330 is provided at a side of the terminal block 300 away from the central axis 001, pin holes 350 for mounting the pins 340 are provided between the first concave side 310 and the second side 330 and between the first convex side 320 and the second side 330, a distance between the pin holes 350 of the first concave side 310 and the pin holes 350 of the adjacent first convex side 320 in a horizontal plane is equal, a distance between an end face of the pin hole 350 on the first concave side 310 and an end face of the pin hole 350 on the adjacent first convex side 320 in a Y axis direction is L, and L >0, so that the pins 350 on the adjacent two pin holes are arranged in a staggered manner. Preferably, the fastening sequence is a lower frame 200, a lower frame pole jaw 220, an upper frame pole jaw 120, an upper frame 100.

As shown in fig. 2-11, an inverted slope 370 is disposed between the first concave side 310 and the upper surface of the terminal block, an inverted slope 370 is disposed between the first convex side 320 and the upper surface of the terminal block, the included angle between the inverted slope and the first concave side 310 or the first convex side 320 is α, and O < α <60 °. Preferably, α=45°.

The pin 340 has a connection section 341 and a winding section 342, the connection section 341 bends the winding section 342 toward the central axis 001, the reverse inclined surface 370 limits the bending angle of the winding section 342, the included angle between the bent winding section 342 and the first concave side 310 and the included angle between the bent winding section 342 and the first convex side 320 are phi, and 0< phi <60 deg. Preferably, phi = 45 °.

The first concave side 310 and the first convex side 310 are provided with a limit groove 360 at the port of the pin hole 350, and the limit groove 360 is used for accommodating the winding segment 342 and limiting the rotation of the winding segment 342, in which the pin 340 bends toward the central axis 001 direction relative to the connection segment 341 inserted in the pin hole 350.

The second side 330 is provided with a wire dividing groove 331 at both sides of each pin hole 350.

The distance between the pin hole 350 port of the first concave side 310 and the pin hole 350 port of the first convex side 320 in the X-axis direction is I, and i=1.5 mm, so that the linear distance between the pin hole 350 port of the first concave side 310 and the pin hole 350 port of the first convex side 320 is S, and S >1.5mm. Preferably, s=2.58 mm.

The height of the terminal block 300 protruding from the upper surface of the upper frame 100 is 2mm-3mm. Preferably, the height of the terminal block 300 protruding from the upper surface of the upper frame 100 is 2.4mm.

The upper bobbin 100 has a winding space 110 around which a coil is wound, and a transition surface 332 is provided between an upper bottom surface and a second side surface 330 of the winding space 110 of the upper bobbin 100. Preferably, the transition face 332 is rounded.

The limiting groove 360 of the first concave side 310 and the first convex side 320 has a groove bottom surface perpendicular to the central axis 001, and the center of the pin hole 350 of the first concave side 310 and the center of the pin hole 350 of the first convex side 320 are 1mm-2mm apart from the limiting groove 360 in the direction of the central axis 001. Preferably, the bottom surface of the pin groove is 1.4mm away from the center of the pin hole 350 of the first side concave surface 310 and the center of the pin hole 350 of the first side convex surface 320 of the limit groove 360 in the direction of the central axis 001.

The pin 340 includes a long pin 3401 and a short pin 3402, wherein the connection section 341 of the long pin 3401 is slightly longer than the connection section 341 of the short pin 3402, the long pin 340 is matched with the limit groove 360 of the first side convex surface 320, the limit groove 360 of the first side concave surface 320 is matched with the short pin 3402, and the heights of the long pin 3401 and the winding section 342 of the short pin 3402 are equal.

As shown in fig. 12, the winding process is performed by first slightly bending the pins 342 to wind the plurality of enamel wires around the winding portions 3421 of the respective corresponding pins 340, respectively. Specifically, the enamelled wires corresponding to the pins 340 are led out from the lower and upper bobbins 200 and 100, and then are positioned and separated by the plurality of wire separation grooves 331 provided on the second side 330, respectively, and finally, each enamelled wire is wound around the winding portion 3421 of the corresponding pin 340, respectively.

In this embodiment, for the case of 5 pins, 8 enameled wires are usually corresponding, 1 of the 5 pins is a common pin, 4 enameled wires are wound, and the other 4 pins are respectively wound with 1 enameled wire, so that the winding mode is changed from the original 5-wire-segment doubling mode to the 5-wire-segment adjacent staggered configuration mode. Preferably, the middle pin is used as the common pin. The positioning and branching function of the branching groove 331 can keep a certain distance between the enameled wire and the contact pin, so that the winding process is more accurate and rapid.

As shown in fig. 13, in a state after the winding process is completed, after the winding process is performed, the winding portion 3421 is generally subjected to a tin coating process to achieve electrical conduction between the pin 340 and its corresponding enamel wire. After the wire winding and tin coating processes, the enameled wire may be stretched tightly, and breakage may occur during the subsequent installation process, and the winding portion 3421 and the winding segment 342 of the pin 340 need to be bent to form an angle phi with the first concave side 310 or the first convex side 320, thereby reducing the stretching degree of the enameled wire. The angle of phi is limited by the inverted inclined plane, and the optimal bending angle is phi=45°, so that the aim of loosening the thread is fulfilled.

Claims

1. The coil skeleton assembly for the motor comprises an upper skeleton (100), a lower skeleton (200) and a contact pin (340), wherein the upper skeleton (100) is buckled above the lower skeleton (200), and the upper skeleton (100) and the lower skeleton (200) are buckled and then provided with a central axis (001); the method is characterized in that: terminal block (300) that upward protrusion is equipped with on skeleton (100) upper surface edge, terminal block (300) have first side concave surface (310), first side convex surface (320) towards central axis (001), one side that central axis (001) was kept away from to terminal block (300) is equipped with second side (330), be equipped with between first side concave surface (310) and second side (330) and between first side convex surface (320) and second side (330) be used for installing contact pin hole (350) of contact pin (340), contact pin hole (350) of first side concave surface (310) are equal with contact pin hole (350) of adjacent first side convex surface (320) in horizontal plane lateral distance, contact pin hole (350) terminal surface on first side concave surface (310) is L with contact pin hole (350) terminal surface on adjacent first side convex surface (320) in Y axial direction, and L >0 for contact pin on two adjacent contact pin holes (350) staggers the configuration.

2. A bobbin assembly for an electric machine as set forth in claim 1 wherein: an inverted slope (370) is arranged between the first side concave surface (310) and the upper surface of the terminal block, an inverted slope (370) is arranged between the first side convex surface (320) and the upper surface of the terminal block, an included angle between the inverted slope (370) and the first side concave surface (310) or the first side convex surface (320) is alpha, and O < alpha <60 degrees.

3. A bobbin assembly for an electric machine as set forth in claim 2 wherein: the contact pin (340) is provided with a connecting section (341) and a winding section (342), the connecting section (341) bends towards the winding section (342) in the direction of the central axis (001), the reverse inclined surface (370) limits the bending angle of the winding section (342), the included angle between the bent winding section (342) and the first side concave surface (310) and the included angle between the bent winding section (342) and the first side convex surface (320) are phi, and 0 phi <60 degrees.

4. A bobbin assembly for an electric machine as set forth in claim 3 wherein: the first side concave surface (310) and the first side convex surface (310) are provided with limit grooves (360) at the ports of the pin holes (350), and the limit grooves (360) are used for accommodating winding sections (342) and limiting winding sections (342) which are bent towards the direction of the central axis (001) relative to connecting sections (341) inserted into the pin holes (350).

5. A bobbin assembly for an electric machine as claimed in any one of claims 1 to 4, wherein: and a wire dividing groove (331) is arranged on two sides of each pin hole (350) of the second side surface (330).

6. A bobbin assembly for an electric machine as claimed in any one of claims 1 to 4, wherein: the distance between the pin hole (350) port of the first concave side surface (310) and the pin hole (350) port of the first convex side surface (320) in the X-axis direction is I, and I=1.5 mm, so that the straight line distance between the pin hole (350) port of the first concave side surface (310) and the pin hole (350) port of the first convex side surface (320) is S, and S is more than 1.5mm.

7. A bobbin assembly for an electric machine as claimed in any one of claims 1 to 4, wherein: the height of the terminal block (300) protruding out of the upper surface of the upper framework (100) is 2mm-3mm.

8. A bobbin assembly for an electric machine as claimed in any one of claims 1 to 4, wherein: the upper framework (100) is provided with a winding space (110) for winding a coil, and a transition face (332) is arranged between the upper bottom surface and the second side surface (330) of the winding space (110) of the upper framework (100).

9. A bobbin assembly for an electric machine as set forth in claim 4 wherein: the limiting groove (360) of the first side concave surface (310) and the first side convex surface (320) is provided with a groove bottom surface perpendicular to the central axis (001), and the center of a pin hole (350) of the first side concave surface (310) and the center of a pin hole (350) of the first side convex surface (320) are 1mm-2mm away from the limiting groove (360) in the direction of the central axis (001).

10. A bobbin assembly for an electric machine as claimed in any one of claims 1 to 4, wherein: the contact pin (340) include long contact pin (3401) and short contact pin (3402), wherein connecting section (341) of long contact pin (3401) is slightly longer than connecting section (341) of short contact pin (3402), spacing recess (360) of long contact pin (340) and first side convex surface (320) cooperate, spacing recess (360) of first side concave surface (320) cooperate with short contact pin (3402), the height of wire winding section (342) of long contact pin (3401) and short contact pin (3402) equals.