Coil lead structure for claw-pole permanent magnet synchronous motor

Abstract

The utility model provides a coil lead structure used for a claw pole type permanent magnet synchronous motor, and the technical scheme is characterized in that the coil lead structure comprises a coil holder and a motor lead, one end of the coil holder is provided with a boss, and two ends of the boss are respectively provided with a first installation groove and a second installation groove. A first wiring terminal and a second wiring terminal are arranged in the first mounting groove and the second mounting groove respectively, electrode connecting pieces are arranged on the first wiring terminal and the second wiring terminal, and one end of each motor wire is provided with a wire connector. Bayonets used for clamping wire connectors are arranged on the first wiring terminal and the second wiring terminal and located on the outer side of the boss, a cover shell is fixedly installed on the boss and located on one side of the wire frame, and a notch used for allowing a motor wire to penetrate through is formed in the bottom end of the cover shell. Manual operation procedures such as outgoing line welding can be reduced, mechanical winding and automatic welding of the coil can be conveniently achieved, and therefore the coil manufacturing efficiency is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the lead structure field of motor coil, especially in kind for claw pole formula permanent magnet synchronous motor's coil lead structure. BACKGROUND

[0002] At present, claw pole formula permanent magnet synchronous motor is widely used in each field because of its high reliability, relatively low noise, constant speed and other characteristics, for example: in rotary page formula electric fan, cold and warm air blower, mahjong machine, various constant speed or low speed device's automation instrument, teaching instrument and automatic window curtain machine all have application. But the coil of claw pole formula permanent magnet synchronous motor in prior art, first, the lead -through wire is passed through the sheath, then the lead wire one end is welded on the terminal of the enameled wire winding in the coil, then the sheath is covered on the coil and fixed. This way can only pass the lead wire by hand, and can only weld the lead wire on the terminal of the enameled wire winding by manual operation, and there is the defect of slow production efficiency. At the same time, manual operation needs a large number of manual stations, and increasing labor cost will form certain burden to enterprises, which is not conducive to the transformation and upgrading of enterprise automation and mechanization. SUMMARY

[0003] In order to avoid the defects of the prior art, reduce the manual operation process such as lead -through wire welding, facilitate the realization of the mechanized winding and automatic welding of the coil, improve the production efficiency of the coil and reduce the production cost, the utility model provides a kind of coil lead structure for claw pole formula permanent magnet synchronous motor.

[0004] In order to solve the above problems, the utility model provides the following technical scheme:

[0005] A kind of coil lead structure for claw pole formula permanent magnet synchronous motor, characterized by: including the wire holder for winding coil and the motor lead for electrically connecting the electrode lead of the two ends of coil, the one end of the wire holder is provided with boss, the two ends of the boss are respectively provided with first installation slot and second installation slot, the first installation slot and the second installation slot are respectively provided with first terminal and second terminal, the first terminal and the second terminal are provided with electrode connecting piece for winding the electrode lead of the two ends of coil respectively, the one end of the two motor leads is provided with lead connector for clamping the first terminal and the second terminal respectively, the first terminal and the second terminal and located on the outside of the boss are provided with the bayonet for clamping the lead connector, the boss and located on the one side of the wire holder are fixedly installed with the shell for preventing the lead connector from falling off, the bottom end of the shell is provided with the aperture for passing through the motor lead.

[0006] The coil lead structure for claw-pole permanent magnet synchronous motor has the characteristics that two electrode connecting pieces are arranged on the top of the first and second terminal respectively and extend vertically upward, and a limiting slot for clamping the electrode lead to prevent loosening is arranged on the electrode connecting piece.

[0007] The coil lead structure for claw-pole permanent magnet synchronous motor has the characteristics that the first and second terminal are both U-shaped and symmetrically clamped into the first and second installation slot respectively, and two wire connecting heads are symmetrically clamped on the first and second terminal respectively.

[0008] The coil lead structure for claw-pole permanent magnet synchronous motor has the characteristics that the upper end of the wire connecting head is a clamping head, the lower end is a crimping head, a clamping slot for clamping the clamping head is arranged on the bottom end of the clamping head, and the crimping head is wrapped on the metal core of the motor wire and is fixed by pressing.

[0009] The coil lead structure for claw-pole permanent magnet synchronous motor has the characteristics that a limiting spring piece is arranged on the clamping head, and a limiting block for resisting the limiting spring piece to stabilize the wire connecting head is arranged on the inner wall of the shell on one side of the wire connecting head.

[0010] The coil lead structure for claw-pole permanent magnet synchronous motor has the characteristics that side plates and clamping plates for clamping into the motor shell are arranged on both ends and the bottom end of the shell respectively, and the shell is detachably fixed on the outer side of the boss by means of tight fitting and insertion.

[0011] Compared with the prior art, the coil lead structure for claw-pole permanent magnet synchronous motor has the following advantages:

[0012] The coil lead structure for claw-pole permanent magnet synchronous motor has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a perspective view of the coil lead structure;

[0014] Figure 2 is a front view of the coil lead structure;

[0015] Figure 3 is Figure 2 is a sectional view along the direction A-A in figure

[0016] Figure 4 is a first exploded view of the coil lead structure;

[0017] Figure 5 is a second exploded view of the coil lead structure;

[0018] Figure 6 is a third exploded view of the coil lead structure, with the bobbin part hidden;

[0019] In the figure: 1 is a bobbin; 2 is a boss; 3 is a first mounting slot; 4 is a second mounting slot; 5 is a first wiring terminal; 6 is a second wiring terminal; 7 is an electrode connecting piece; 8 is a bayonet; 9 is a limiting slot; 10 is a wire connecting head; 11 is a clamping head; 12 is a clamping slot; 13 is a limiting spring piece; 14 is a crimping head; 15 is a cover; 16 is an opening; 17 is a limiting block; 18 is a side plate; 19 is a clamping plate; 20 is a motor wire. DETAILED DESCRIPTION

[0020] The technical features of the present application will be further explained in detail below in conjunction with the drawings so as to be understood by those skilled in the art.

[0021] A coil lead structure for claw-pole permanent magnet synchronous motor, as shown in Figures 1-6The motor lead 20 is used for winding the coil and electrically connecting the electrode leads at both ends of the coil, a boss 2 is arranged at one end of the bobbin 1, a first mounting slot 3 and a second mounting slot 4 are arranged at both ends of the boss 2 respectively, a first connecting terminal 5 and a second connecting terminal 6 are arranged in the first mounting slot 3 and the second mounting slot 4 respectively, an electrode connecting piece 7 for winding the electrode leads at both ends of the coil is arranged on the first connecting terminal 5 and the second connecting terminal 6 respectively, a lead connecting head 10 for clamping the first connecting terminal 5 and the second connecting terminal 6 is arranged at one end of the two motor leads 20 respectively, a clamping hole 8 for clamping the lead connecting head 10 is arranged on the first connecting terminal 5 and the second connecting terminal 6 and outside the boss 2, a cover 15 for preventing the lead connecting head 10 from falling off is fixedly installed on the boss 2 and at one side of the bobbin 1, and an opening 16 for passing through the motor lead 20 is arranged at the bottom end of the cover 15; the first connecting terminal 5, the second connecting terminal 6 and the lead connecting head 10 are all made of conductive metal, the first connecting terminal 5 and the second connecting terminal 6 are electrically connected with the electrode leads at both ends of the coil respectively, the electrode leads at both ends of the coil are electrically connected with the two motor leads 20 through the first connecting terminal 5, the second connecting terminal 6 and the corresponding lead connecting head 10, the motor lead 20 and the lead connecting head 10 can be automatically fixedly connected through mechanical equipment, the first connecting terminal 5 and the second connecting terminal 6 and the corresponding lead connecting head 10 can be automatically clamped and assembled through a mechanical arm and a corresponding clamp, even through manual operation, the assembly can be conveniently and quickly completed, at the same time, the coil and the electrode leads at both ends of the coil can be automatically wound through mechanical equipment, and the electrode leads can be fixedly connected through mechanical bending after being wound on the electrode connecting piece 7, or the electrode leads can be fixedly connected through a mechanical arm spot welding after being wound, the lead no longer needs to be manually welded on the terminal by passing through the sheath and manually welding, the coil winding, lead welding and fixing and other processes can be completed through automatic equipment, without manual alignment and manual welding, reducing the manual operation process, which can effectively improve the production efficiency of the coil and reduce the production cost.

[0022] Specifically, two pieces of the electrode connecting piece 7 are respectively arranged at the top end of the first and second wiring terminals 5 and 6 and vertically extend upward, and a limiting groove 9 for clamping the electrode lead wire to prevent loosening is arranged on the electrode connecting piece 7; the electrode connecting piece 7 is an integral part with the corresponding first and second wiring terminals 5 and 6, and after the coil lead wire is wound on the corresponding electrode connecting piece 7 by mechanical equipment, the electrode connecting piece 7 can be fixed by crimping the top end part of the electrode connecting piece 7, or after winding, the electrode connecting piece 7 can be fixed by spot welding with a mechanical arm, so as to stabilize the connection of the coil lead wire and prevent the coil lead wire from being scattered after winding to cause short circuit.

[0023] In addition, the first and second wiring terminals 5 and 6 are both U-shaped and symmetrically clamped into the first and second installation grooves 3 and 4, respectively, and the two wire connecting heads 10 are symmetrically clamped on the first and second wiring terminals 5 and 6, respectively, so that the coil lead wire structure is symmetrical as a whole, facilitating automatic positioning and assembly by mechanical equipment.

[0024] Specifically, the upper end of the wire connecting head 10 is a clamping head 11, and the lower end is a crimping head 14, a clamping groove 12 for embedding and clamping the card slot 8 is arranged at the bottom end of the clamping head 11, and the crimping head 14 is wrapped on the metal core of the motor lead wire 20 and is fixed by pressing; the crimping head 14 and the motor lead wire 20 can also be fixed by spot welding with a mechanical arm, and after fixed connection, a heat shrink tube can be sleeved to tighten the connection to prevent water and electric leakage, and also to prevent short circuit and poor conduction.

[0025] In addition, a limiting spring 13 is arranged on the clamping head 11, and a limiting block 17 for abutting against the limiting spring 13 to stabilize the wire connecting head 10 is arranged on the inner wall of the cover 15 on one side of the wire connecting head 10; when the cover 15 is installed in place, the limiting spring 13 abuts against the limiting block 17, thereby reducing the installation gap between the first and second wiring terminals 5 and 6 and the corresponding wire connecting heads 10, so that the wire connecting head 10 is more stable in installation.

[0026] Specifically, side plates 18 and clamping plates 19 for clamping into the motor housing are respectively arranged at both ends and the bottom end of the cover 15, and the cover 15 is detachably installed and fixed on the outside of the boss 2 in a tight-fitting plug-in manner, and the coil lead wire structure is assembled into the motor housing in a plug-in manner, so as to facilitate the assembly and production of the motor product.

[0027] The embodiment described in the utility model only describes the preferred embodiment of the utility model, and is not limited to the exact structure shown in the above description and the drawings, and various modifications and changes can be made without departing from the protection scope; under the premise of not departing from the design idea of the utility model, various modifications and improvements of the technical scheme of the utility model made by the engineering technicians in the field shall fall into the protection scope of the utility model.

Claims

1. A coil lead structure for a claw-pole permanent magnet synchronous motor, characterized by: The utility model provides a motor lead wire connecting head, including the bobbin (1) for winding coil and the motor lead wire (20) for electrically connecting the electrode lead of coil both ends, the boss (2) is equipped in one end of bobbin (1), first mounting groove (3) and second mounting groove (4) are equipped respectively in both ends of boss (2), first terminal (5) and second terminal (6) are equipped respectively in first mounting groove (3) and second mounting groove (4), electrode connecting piece (7) for winding electrode lead of coil both ends is equipped on first terminal (5) and second terminal (6) respectively, lead wire connecting head (10) for clamping first terminal (5) and second terminal (6) respectively is equipped in one end of two motor lead wire (20), the bayonet (8) for clamping lead wire connecting head (10) is equipped on first terminal (5) and second terminal (6) and located the outside of boss (2), the cover (15) for preventing lead wire connecting head (10) from falling off is fixedly installed on boss (2) and located the one side of bobbin (1), the aperture (16) for passing through motor lead wire (20) is equipped in the bottom end of cover (15).

2. The coil lead structure for a claw pole type permanent magnet synchronous motor according to claim 1, characterized by: Two electrode connecting pieces (7) are arranged on the top end of first terminal (5) and second terminal (6) respectively and extend vertically upward, and a limiting groove (9) is arranged on the electrode connecting piece (7) for clamping the electrode lead to prevent loosening.

3. The coil lead structure for a claw-pole permanent-magnet synchronous motor according to claim 1 or 2, characterized by: First terminal (5) and second terminal (6) are both U-shaped and symmetrically clamped into first mounting groove (3) and second mounting groove (4) respectively, and two lead wire connecting heads (10) are symmetrically clamped on first terminal (5) and second terminal (6) respectively.

4. The coil lead structure for a claw pole type permanent magnet synchronous motor according to claim 1, characterized by: The upper end of lead wire connecting head (10) is a clamping head (11), and the lower end is a crimping head (14), a clamping groove (12) is arranged at the bottom end of clamping head (11) and embeddedly clamped with the bayonet (8), and the crimping head (14) is wrapped on the metal core of motor lead wire (20) and is press-fitted and fixed.

5. The coil lead structure for a claw pole type permanent-magnet synchronous motor according to claim 4, characterized by: A limiting elastic sheet (13) is arranged on the clamping head (11), and a limiting block (17) for abutting against the limiting elastic sheet (13) to stabilize lead wire connecting head (10) is arranged on the inner wall of cover (15) and located at one side of lead wire connecting head (10).

6. The coil lead structure for a claw pole type permanent magnet synchronous motor according to claim 1, characterized by: Side plates (18) and clamping plates (19) for clamping into the motor housing are arranged at both ends and the bottom end of cover (15) respectively, and cover (15) is detachably fixed on the outside of boss (2) by means of tight-fitting insertion.

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