Six-pole motor with detachable reel

Abstract

The utility model discloses a six-pole motor with a detachable reel, and the motor comprises an outer stator which is provided with a first assembly hole in the axial direction; a second assembly hole is formed in the inner stator in the axial direction, six tooth parts are arranged on the outer side portion of the inner stator in the radial direction of the second assembly hole in a protruding mode, grooves corresponding to the tooth parts one to one are formed in the inner side wall of the first assembly hole in a concave mode, and arc-shaped bosses are formed at the ends, close to the grooves, of the tooth parts; the arc-shaped boss is matched with the groove, so that the inner stator can be separably fixed in the first assembly hole; the wire winding frames are in one-to-one correspondence with the tooth parts and are provided with first penetrating holes for the tooth parts to penetrate through; and the stator coil is wound on the winding frame. The split type structure of the outer stator and the inner stator is utilized, more operation space is provided for the winding step, the coil assembling efficiency can be improved, on the other hand, automatic assembly line work with higher precision and unification degree can be adopted in the machining process, and labor is greatly saved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly to a six-pole motor with a detachable winding frame. Background Art

[0002] The stator is a particularly important part of a motor, which mainly includes a stator core, a stator coil and a winding frame.

[0003] In the prior art, the stator core includes an outer ring part, tooth parts protruding from the inner side of the outer ring part, and shoe parts corresponding to the tooth parts one by one. The winding frame is fixed on the tooth parts, and wire grooves are formed between adjacent tooth parts. This structure has the following deficiencies: The stator coil is wound inside the stator core and fixed on the winding frame. Since the space available for operation inside the stator core is small, the winding efficiency of the stator coil is low. Summary of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a six-pole motor with a detachable winding frame.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A six-pole motor with a detachable winding frame, comprising:

[0007] An outer stator, having a first assembly hole axially formed therein;

[0008] An inner stator, having a second assembly hole axially formed therein, and six tooth parts protruding radially from the outer side along the second assembly hole. A groove corresponding to each tooth part is recessed on the inner side wall of the first assembly hole. An arc-shaped convex platform is formed at one end of the tooth part close to the groove. The arc-shaped convex platform is adapted to the groove and can fix the inner stator detachably in the first assembly hole;

[0009] A winding frame, corresponding to each tooth part one by one, having a first through hole for the tooth part to pass through;

[0010] A stator coil, wound on the winding frame.

[0011] Preferably, the radian of the arc-shaped convex platform is 1.5 - 2.5.

[0012] Preferably, a rounded surface is provided on the inner side of one of the grooves, and a rounded part is provided on one side of one of the arc-shaped convex platforms. The rounded part abuts against the rounded surface.

[0013] Preferably, the radius of the rounded surface is 2 - 3 mm, and the radius of the rounded part is 2 - 3 mm.

[0014] Preferably, the first perforation is rectangular, and arc-shaped guiding surfaces are respectively arranged at the opening edges.

[0015] Preferably, it further includes:

[0016] Six pairs of terminal seats, arranged at the top of the winding frame, having slots with open tops, and U-shaped grooves for the lead wires of the stator coil to pass through are respectively arranged on the front and rear sides of the slots;

[0017] Six pairs of piercing terminals, inserted into the slots, including a piercing part and a power connection part connected thereto, the piercing part can act on the enameled wire coating of the stator coil, and the power connection part is connected to an external power source and can electrically conduct the stator coil and the external power source.

[0018] Preferably, positioning grooves are respectively arranged on the left and right sides of the slots, positioning teeth are respectively protruded outward on both sides of the piercing terminal, and the positioning teeth are in sliding fit with the positioning grooves along the insertion and extraction direction of the piercing terminal.

[0019] Preferably, the piercing part includes a pair of clamping arms, and scraping structures for acting on the enameled wire coating of the stator coil are respectively arranged on the inner sides of the pair of clamping arms.

[0020] Preferably, inclined guiding edges are respectively arranged on the inner sides of the pair of clamping arms, and a guiding port facing the enameled wire is formed by the pair of guiding edges.

[0021] Preferably, it further includes:

[0022] A PCBA board, fixed on the six pairs of terminal seats, coaxially provided with third assembly holes, and the six pairs of power connection parts are respectively electrically connected to the PCBA board.

[0023] The assembly process of the present utility model: First, wind the stator coil on the winding frame, then assemble the winding frame with the stator coil through the first perforation and the tooth part of the inner stator, and finally fix the inner stator with six groups of winding frames through the nested fit of the arc-shaped convex platform and the groove, thereby completing the assembly.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows: By using the split structure of the outer stator and the inner stator, more operating space is provided for the winding step, which is beneficial to improving the assembly efficiency of the coil. On the other hand, during processing, an automated production line with higher precision and uniformity can be adopted, greatly saving labor. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of an embodiment in the present utility model;

[0026] Figure 2 It is an exploded view of the components of an embodiment in the present utility model;

[0027] Figure 3 This is the top view of the outer stator of the embodiment in the present utility model;

[0028] Figure 4 This is the top view of the inner stator of the embodiment in the present utility model;

[0029] Figure 5 This is the structural schematic diagram of the winding frame of the embodiment in the present utility model;

[0030] Figure 6 This is the structural schematic diagram of the piercing terminal of the embodiment in the present utility model.

[0031] As shown in the figure:

[0032] 1 - Outer stator, 11 - First assembly hole, 111 - Groove, 1111 - Rounded corner surface;

[0033] 2 - Inner stator, 21 - Second assembly hole, 22 - Tooth part, 221 - Arc-shaped boss, 2211 - Rounded corner part;

[0034] 3 - Winding frame, 31 - First through hole, 311 - Arc-shaped guiding surface, 32 - Terminal seat, 321 - Slot, 3211 - U-shaped groove, 3212 - Positioning groove;

[0035] 4 - Piercing terminal, 41 - Piercing part, 411 - Clamping arm, 412 - Scratching structure, 42 - Power connection part, 43 - Positioning tooth, 44 - Deformation gap, 45 - Guiding edge, 46 - Guiding port;

[0036] 5 - Stator coil;

[0037] 6 - PCBA board, 61 - Third assembly hole. Specific embodiments

[0038] The following combines with the attached drawings to specifically clarify the implementation manners of the present utility model. The attached drawings are only for reference and illustration, and do not constitute a limitation to the patent protection scope of the present utility model.

[0039] Please refer to Figures 1-6 , a six-pole motor with a detachable winding frame 3, including:

[0040] An outer stator 1, which is axially provided with a first assembly hole 11;

[0041] The inner stator 2 is axially provided with a second assembly hole 21, and six tooth parts 22 are radially protruded from the outer side along the radial direction of the second assembly hole 21. The inner side wall of the first assembly hole 11 is recessed with grooves 111 corresponding to the tooth parts 22 one by one. An arc-shaped boss 221 is formed at one end of the tooth part 22 close to the groove 111. The arc-shaped boss 221 is adapted to the groove 111 and can detachably fix the inner stator 2 in the first assembly hole 11;

[0042] The winding frame 3 is correspondingly provided with a first through hole 31 for the tooth part 22 to pass through for each tooth part 22;

[0043] The stator coil 5 is wound around the winding frame 3.

[0044] In this embodiment, both the outer stator 1 and the inner stator 2 are formed by stacking a plurality of silicon steel sheets; by using the arc-shaped boss 221, the contact area with the groove 111 is increased, which is beneficial to improving the assembly strength. On the other hand, when the winding frame 3 is assembled, it first passes through the arc-shaped boss 221, and the boss design without sharp edges is adopted to avoid scratching the winding frame 3, which is beneficial to improving the added value of the product.

[0045] Preferably, the radian of the arc-shaped boss 221 is 1.5 - 2.5.

[0046] In this embodiment, the radian of the arc-shaped boss 221 is 2.

[0047] Preferably, a rounded surface 1111 is provided on the inner side of one of the grooves 111, and a rounded part 2211 is provided on one side of one of the arc-shaped bosses 221, and the rounded part 2211 abuts against the rounded surface 1111.

[0048] In this embodiment, a rounded surface 1111 is provided on the inner side of one groove 111, and the inner side walls of the remaining five grooves 111 are all arc-shaped matching the arc-shaped boss 221; a rounded part 2211 is provided on one side of one arc-shaped boss 221, and the remaining five are all arc-shaped bosses 221 with a radian of 2. The above technical solution provides an assembly reference for the inner stator 2 and avoids misassembly.

[0049] Preferably, the radius of the rounded surface 1111 is 2 - 3 mm, and the radius of the rounded part 2211 is 2 - 3 mm.

[0050] In this embodiment, the radius of the rounded surface 1111 is 2 mm, and the radius of the rounded part 2211 is 2 mm.

[0051] Preferably, the first through hole 31 is rectangular, and arc-shaped guiding surfaces 311 are respectively provided at the opening edges.

[0052] Preferably, it further includes:

[0053] Six pairs of terminal seats 32 are provided at the top of the winding frame 3. The terminal seats 32 are provided with slots 321 with open tops. U-shaped grooves 3211 for the wire ends of the stator coil 5 to pass through are respectively formed on the front and rear sides of the slots 321.

[0054] Six pairs of piercing terminals 4 are inserted into the slots 321. Each piercing terminal 4 includes a piercing part 41 and a power connection part 42 which are connected. The piercing part 41 can act on the enameled wire coating of the stator coil 5, and the power connection part 42 is connected to an external power supply and can electrically conduct the stator coil 5 to the external power supply.

[0055] Preferably, positioning grooves 3212 are respectively formed on the left and right sides of the slots 321. Positioning teeth 43 respectively protrude outward from the two sides of the piercing terminals 4. The positioning teeth 43 are in sliding fit with the positioning grooves 3212 along the insertion and extraction direction of the piercing terminals 4.

[0056] Preferably, the piercing part 41 includes a pair of clamping arms 411. Scratching structures 412 for acting on the enameled wire coating of the stator coil 5 are respectively arranged on the inner sides of the pair of clamping arms 411.

[0057] In this embodiment, the scratching structure 412 is a four-sided prism-shaped block arranged on the clamping arm 411. The edge is used to act on the enameled wire coating, eliminating the step of manually removing the coating, which is beneficial to improving production efficiency and simplifying the wiring of the stator assembly. Specifically, the head end of the coil passes through the U-shaped groove 3211 of one terminal seat 32, and the tail end passes through the U-shaped groove 3211 of the other terminal seat 32.

[0058] In this embodiment, a deformation gap 44 is left between the pair of clamping arms 411 and the body of the piercing terminal 4, which is beneficial to broadening the applicable range.

[0059] Preferably, guiding edges 45 are respectively arranged on the inner sides of the pair of clamping arms 411 in an inclined manner. The pair of guiding edges 45 form a guiding inlet 46 facing the enameled wire.

[0060] Preferably, it further includes:

[0061] A PCBA board 6 is fixed on the six pairs of terminal seats 32. Third assembly holes 61 are coaxially formed on the PCBA board 6. The six pairs of power connection parts 42 are respectively electrically connected to the PCBA board 6.

[0062] In this embodiment, second through holes corresponding to the power connection parts 42 one by one are formed on the PCBA board 6, thus saving more space and the material cost of the motor. The second assembly holes 21 of the inner stator 2 and the third assembly holes 61 on the PCBA board 6 are both used for assembling the rotor assembly.

[0063] The above-disclosed is only the preferred embodiment of the present utility model, and it cannot be used to limit the scope of the patent protection of the present utility model. Therefore, the equivalent changes made according to the scope of the patent application of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A six-pole motor with a detachable winding frame, characterized in that: include: The outer stator is provided with a first assembly hole along the axial direction; The inner stator has a second assembly hole opened in the axial direction, and six teeth are protruded on the outer side along the radial direction of the second assembly hole, and the inner side wall of the first assembly hole is concavely provided with grooves corresponding to the teeth one by one, and the teeth are formed with an arc-shaped boss at one end close to the groove, and the arc-shaped boss is adapted to the groove, so that the inner stator can be detachably fixed in the first assembly hole; A winding frame, corresponding to the teeth one by one, and having a first through hole for the teeth to pass through; The stator coil is wound on the winding frame.

2. A six-pole motor with a detachable winding frame according to claim 1, characterized in that: The curvature of the arc-shaped boss is 1.5 to 2.

5.

3. A six-pole motor with a detachable winding frame according to claim 1, characterized in that: A rounded surface is provided on the inner side of one of the grooves, and a rounded portion is provided on one side of one of the arc-shaped bosses, and the rounded portion abuts against the rounded surface.

4. A six-pole motor with a detachable winding frame according to claim 3, characterized in that: The radius of the rounded surface is 2 to 3 mm, and the radius of the rounded portion is 2 to 3 mm.

5. A six-pole motor with a detachable winding frame according to claim 1, characterized in that: The first through hole is rectangular, and the opening edges are respectively provided with arc-shaped introduction surfaces.

6. A six-pole motor with a detachable winding frame according to claim 1, characterized in that: Also includes: Six pairs of terminal seats are arranged at the top of the winding frame, and are provided with slots with an open top. The front and rear sides of the slots are respectively provided with U-shaped slots for the stator coil ends to pass through; Six pairs of piercing terminals are inserted into the slots, including connected piercing parts and power connection parts, wherein the piercing parts can act on the paint coating of the enameled wire of the stator coil, and the power connection part is connected to an external power supply to enable the stator coil to be electrically conductive with the external power supply.

7. A six-pole motor with a detachable winding frame according to claim 6, characterized in that: Positioning grooves are respectively provided on the left and right sides of the slot, and positioning teeth are respectively protruded outwardly on both sides of the piercing terminal. The positioning teeth and the positioning grooves are slidably matched along the plugging and unplugging direction of the piercing terminal.

8. A six-pole motor with a detachable winding frame according to claim 6, characterized in that: The piercing portion comprises a pair of clamping arms, and inner sides of the pair of clamping arms are respectively provided with piercing structures for acting on the paint coating of the enameled wire of the stator coil.

9. A six-pole motor with a detachable winding frame according to claim 8, characterized in that: The inner sides of the pair of clamping arms are respectively provided with inclined introduction edges, and the pair of introduction edges form an introduction port facing the enameled wire.

10. A six-pole motor with a detachable winding frame according to claim 6, characterized in that: Also includes: The PCBA board is fixed on the six pairs of terminal seats, and a third assembly hole is coaxially opened. The six pairs of electrical connections are electrically connected to the PCBA board respectively.

Images