TWM659686U - Motor stator welding jig - Google Patents

Abstract

This invention discloses a motor stator welding fixture for welding motor stators and substrates. The motor stator welding fixture includes: a protective cover and a hot press head. The protective cover is used to cover the motor stator and the substrate to provide protection and positioning. The protective cover has a plurality of wire slots for the outlet of the motor stator to be exposed outside the protective cover; the hot press head has a hot press end corresponding to the parts of the motor stator and the substrate to be welded. The hot press head covers the outer side of the protective cover and heats and welds the parts of the motor stator and the substrate to be welded by the hot press end. This invention can perform one-time full welding of the coils of the motor stator that has been wound, and plays a protective role in fixing the motor stator and preventing solder splashing during the welding process.

Description

Motor stator welding jig

This invention is about a stator welding jig, in particular, a motor stator welding jig and a welding manufacturing process using the jig.

Due to the axial space limitation of ultra-thin laptop fans, it is difficult to locate the U, V, W, and COM solder joints of the motor, which increases the difficulty of manufacturing. Currently, the industry mostly relies on workers to manually pull the coils to align the solder joints. This operation is not only difficult, but also extremely challenging, requiring the operator to have good vision and rich experience, and it is difficult to achieve through automated production, so the production process takes a long time.

For example, Taiwan application No. 105101150 discloses a stator assembly of a motor, which includes a stator core, at least one winding coil, a circuit board assembly, a metal column and a sleeve portion. The stator core includes a plurality of poles. At least one winding coil is wound around a plurality of poles of the stator core, and the winding coil includes at least one wire outlet. The metal column includes a first end face and a second end face, wherein the second end face is attached to the circuit board assembly. The sleeve portion partially covers the metal column and includes a plurality of petals, wherein a groove is formed between two adjacent petals. When the wire outlet of the winding coil passes through at least two grooves, the wire outlet of the winding coil crosses the first end face of the metal column.

However, the wire outlet of the winding coil needs to be manually pulled through at least two corresponding grooves, and then go around one or two petals from the outside to the left or right, and then go through two opposite grooves. After that, go around one or two petals from the other outside to the left or right again, and pass through another two opposite grooves, and finally tie the wire outlet to the braid. Since the process depends entirely on cumbersome manual operations and different manual experiences, the winding method or force may be different or uneven, causing the wire outlet to break or loose easily. Moreover, the inefficient operation of wrapping and tightening the valve multiple times makes the entire wrapping process time-consuming and cannot be completed quickly, affecting production efficiency and making it impossible to apply to automated production.

In addition, after the motor stator is wound, the coil and the welding point need to be welded. Currently, manual welding is generally used. The welder needs to hold the soldering iron in one hand and fix the coil with the other hand to weld. When welding manually, the coil is prone to breakage, and the specifications of each welding point cannot be unified. For example, the height is too high and there is interference with other components. In addition, the efficiency of manual welding is relatively low. At present, there is no consistent automated fixture and welding method that can be used for automated welding after the motor stator is wound to achieve a consistent operation process.

In view of the above problems, the creator of this case worked hard and devoted himself to research, and finally completed the motor stator welding fixture and its welding manufacturing method in this case, overcoming the lack of knowledge and technology.

The main purpose of this invention is to provide a motor stator welding fixture that can perform one-time comprehensive welding on the motor stator coil after the motor stator is wound.

Another purpose of this invention is to provide a motor stator welding fixture that can effectively prevent solder splattering during the welding process of the motor stator coil.

To achieve the above-mentioned purpose, the invention is a motor stator welding fixture, which is used for welding a motor stator and a substrate. The motor stator welding fixture includes: a protective cover and a hot press head. The protective cover is used to cover the motor stator and the substrate to provide protection and positioning. The protective cover has a plurality of wire slots for the outlet of the motor stator to be exposed outside the protective cover. The wire slots on the protective cover are provided with guide angles to guide the coil of the motor stator to align the welding point. The hot press head has a hot press end corresponding to the part of the motor stator and the substrate to be welded. The hot press head covers the outer side of the protective cover and heats and welds the part of the motor stator and the substrate to be welded by the hot press end.

In one implementation, the motor stator has a plurality of silicon steel sheets and the upper and lower sides of the silicon steel sheets have an upper insulating frame and a lower insulating frame, and the silicon steel sheets are wound with a plurality of coils outside, and the substrate has a plurality of welding points on one side corresponding to the motor stator, and the coils extend outward to form a wire outlet.

In one implementation, the wire slots on the protective cover are provided with guide angles to align the motor stator coils with the welding points.

In one implementation, the hot press head has a first stroke, a second stroke and a third stroke. When the hot press head is in the first stroke and the third stroke, the hot press head is not covered with the protective cover. When the hot press head is in the second stroke, the hot press head covers the outer side of the protective cover and makes the hot press end contact the welding point for welding. Before welding, the hot press head is in the first stroke. When welding, the hot press head is in the second stroke. After welding is completed, the hot press head is in the third stroke.

In one implementation, solder is arranged on the solder joint, the thickness of the solder is 0.1mm to 0.2mm, and the substrate is a flexible printed circuit board (FPCB).

This invention also provides a welding manufacturing method using the motor stator welding fixture, including the following steps: providing a motor stator and a substrate to be welded, placing the motor stator on the substrate for preliminary fixing, and then stretching one end of the plurality of coils on the motor stator to a soldering point on the substrate where solder has been pre-arranged; then covering the motor stator with the protective cover for protection and shielding; covering the outside of the protective cover with the hot pressing head, and contacting the hot pressing end of the hot pressing head with the soldering point, heating and pressurizing the soldering point, melting the solder at the soldering point, and after the solder at the soldering point cools and solidifies, the coil of the motor stator is welded to the soldering point.

In one implementation, the wire slot is provided with a guide angle to align the motor stator coil with the welding point.

In one implementation, the hot press head has a first stroke, a second stroke and a third stroke. When the hot press head is in the first stroke and the third stroke, the hot press head is not covered with a protective cover. When the hot press head is in the second stroke, the hot press head covers the outer side of the protective cover and the hot press end and welds the welding point. The hot press head is in the first stroke before welding is performed, the hot press head is in the second stroke when welding is performed, and the hot press head is in the third stroke after welding is completed.

This invention provides a motor stator welding fixture and its welding manufacturing method through the above technical solution. The fixture can be used to fix the motor stator after winding. During the welding process, the protective cover is used to protect and shield the motor stator after winding so that it will not be splashed by solder, and the hot pressing end of the hot pressing head can achieve one-time and full welding of the welding point. This case unifies the welding process of the motor stator and achieves the beneficial effect of simplifying the processing process.

1: Motor stator welding fixture

10: Motor stator

11: Coil

12: Outlet section

20: Substrate

22: Soldering points

30: Protective cover

32: Wire duct

40: Hot press head

42: Hot pressing end

S1, S2, S3: Steps

Figure 1 is a schematic diagram of the motor stator of this invention being set on the substrate.

Figure 2 is a diagram showing the decomposition state of this creation.

The third picture is a schematic diagram of the hot pressing head of this creation in the first stroke.

Figure 4A is a schematic diagram of the hot pressing head of this creation in the second stroke.

Figure 4B is a partial enlarged view of the hot pressing head of this creation at the second stroke.

Figure 5 is a schematic diagram of the hot press head of this creation in the third stroke.

Figure 6 is the flow chart of the motor stator welding manufacturing process of this creation.

The above-mentioned purpose of this invention and its structural and functional characteristics will be explained according to the preferred embodiments of the attached drawings.

FIG. 1 is a schematic diagram of the motor stator of the present invention being arranged on a substrate. As shown in the figure, the motor stator 10 is a motor stator 10 after winding is completed. Taking a three-phase motor as an example, it generally has three phase lines (U, V, W lines) and one neutral line (COM line), so there are four output line parts 12. However, this is an example and is not limited to this. For example, it can also be a single-phase motor. The motor stator 10 has a plurality of silicon steel sheets and an upper insulating frame and a lower insulating frame on the upper and lower sides of the silicon steel sheets, and a plurality of coils 11 are wound around the outside of the silicon steel sheets. After the motor stator 10 is wound, it is placed on a substrate 20. The coils 11 can be fixed by setting, for example, an elastic member on the substrate 20. The substrate 20 has a plurality of welding points 22 on one side corresponding to the motor stator 10. The wire portions 12 extending outward from the coils 11 are correspondingly set at the aforementioned welding points 22. As shown in FIG. 1 of the present case, the substrate 20 has a preset welding point 22. The wire portions 12 extending from the coils 11 of the motor stator 10 extend outward and contact the preset welding points 22 on the substrate 20, and then the welding operation is performed.

FIG. 2 is a schematic diagram of the exploded state of the invention. Please refer to FIG. 3 at the same time. As shown in the figure, the invention is a motor stator welding fixture for welding a motor stator 10 and a substrate 20. The motor stator welding fixture 1 includes: a substrate 20, a protective cover 30 and a hot press head 40. The substrate 20 is used to carry the motor stator 10. The substrate 20 can be, for example, a circuit board, a flexible printed circuit board (Flexible Printed Circuit Board) The substrate 20 is provided with a plurality of solder joints 22, and the solder joints 22 are provided with solder, and the thickness of the solder can be, for example, 0.1 mm to 0.2 mm, but not limited thereto; the protective cover 30 corresponds to the substrate 20 and can cover the substrate 20, and the protective cover 30 can be, for example, a hollow circular cover (cover, cap) body, but not limited thereto, when the protective cover 30 covers the substrate 20, the protective cover 30 can be ... can be provided with solder, and the thickness of the solder can be, for example, 0.1 mm to 0.2 mm, but not limited thereto; The substrate 20 can cover and fix the motor stator 10 placed on the substrate 20, and play the role of fixed limit and protection. The opening periphery of the protective cover 30 has a plurality of wire grooves 32, and the wire grooves 32 correspond to the plurality of welding points 22, so that the wire outlet 12 of the coil 11 of the motor stator 10 can be exposed outside the protective cover 30. The wire grooves 32 are provided with guide angles to align the wire outlet 12 of the coil 11 of the motor stator 10 with the welding points 22.

Figure 3 is a schematic diagram of the hot press head of the invention in the first stroke. As shown in the figure, the hot press head 40 has a hot press end 42 corresponding to the parts to be welded of the motor stator 10 and the substrate 20. The hot press head 40 can be, for example, a hollow circular cover (lid, cap) body, which is slightly larger than the protective cover 30 and can accommodate the protective cover 30. The implementation of the hot press head 40 can have a first stroke, a second stroke and a third stroke. When the hot press head 40 is in the first stroke, it has not yet covered the protective cover 30, and welding has not yet been performed.

FIG. 4A is a schematic diagram of the hot press head of the present invention in the second stroke. Please refer to FIG. 3 at the same time. As shown in the figure, the hot press head 40 is moved to the second stroke and covers the outer side of the protective cover 30. The hot press end 42 of the hot press head 40 is used to weld the wire outlet 12 of the coil 11 of the motor stator 10 to the welding point 22. The hot press end 42 of the hot press head 40 contacts the welding point 22. The welding point 22 is heated and welded at the same time, achieving the effect of uniform operation and comprehensive welding. During the welding process, the protective cover 30 covers the motor stator 10, so that the motor stator 10 will not be displaced during welding and the solder arranged on the welding point 22 can be prevented from splashing to the motor stator 10, which plays a role in positioning and protecting the motor stator 10.

Figure 4B is a partial enlarged view of the hot press head of this invention at the second stroke. As shown in the figure, the hot press head 40 moves to the second stroke to enter the welding state. The hot press end 42 of the hot press head 40 contacts the solder joint 22 to melt the solder on the solder joint 22. Since the protective cover 30 covers the outside of the motor stator 10, the lead-out portion 12 is exposed outside the protective cover 30 through the wire groove 32. The protective cover 30 prevents the motor stator 10 from being displaced during welding and prevents the molten solder arranged on the solder joint 22 from splashing to the motor stator 10 during the welding process, thereby fixing and protecting the motor stator 10. Finally, the hot press head 40 welds the lead-out portion 12 of the motor stator 10 to the solder joint 22.

Figure 5 is a schematic diagram of the hot press head of this invention in the third stroke. As shown in the figure, when the welding operation is completed, the hot press head 40 moves to the third stroke so that the hot press head 40 does not cover the protective cover 30, thereby further removing the protective cover 30 covering the substrate 20 to complete the welding operation of the motor stator 10.

In detail, the hot press head 40 has a first stroke, a second stroke and a third stroke. When the hot press head 40 is in the first stroke and the third stroke, the hot press head 40 does not cover the protective cover 30. When the hot press head 40 is in the second stroke, the hot press head 40 covers the outer side of the protective cover 30 and makes the hot press end 42 contact the welding point 22 for welding. That is, the hot press head 40 is in the first stroke before welding is performed, the hot press head 40 is in the second stroke when welding is performed, and the hot press head 40 is in the third stroke after welding is completed.

Figure 6 is a flow chart of the motor stator welding manufacturing process of this invention. Please refer to Figures 1-5 at the same time. As shown in the figure, this invention also provides a motor stator welding manufacturing method, including the following steps:

Step S1: Provide the motor stator 10 and substrate 20 to be welded, place the motor stator 10 on the substrate 20 for preliminary fixation, and then stretch one end of the multiple coils 11 on the motor stator 10 to a soldering point 22 pre-arranged with solder on the substrate 20.

Step S2: Cover the protective cover 30 on the motor stator 10 for protection and shielding;

Step S3: Cover the outside of the protective cover 30 with the hot pressing head 40, and contact the hot pressing end of the hot pressing head 40 with the corresponding soldering point, heat and pressurize the soldering point, melt the solder at the soldering point, and after the solder at the soldering point cools and solidifies, the coil 11 of the motor stator is soldered to the soldering point.

The protective cover 30 has a plurality of wire slots 32 for allowing the wire outlet 12 of the motor stator 10 to be exposed outside the protective cover 30. The wire slots 32 are provided with guide angles to align the wire outlet 12 of the coil 11 of the motor stator 10 with the welding point 22. The hot press head 40 has a first stroke, a second stroke, and a third stroke. When the hot press head 40 is in the first stroke and the third stroke, the hot press head 40 does not cover the protective cover 30. When the hot press head 40 is in the second stroke, the hot press head 40 covers the outer side of the protective cover 30 and the hot press end 42 welds the welding point 22. In other words, when welding is not yet performed, The hot press head 40 is located in the first stroke, and is located in the second stroke when welding. After welding is completed, the hot press head 40 is located in the third stroke. With such settings, when the hot press head is located in the second stroke for welding, the protective cover 30 covers the motor stator 10, so that the motor stator 10 will not be displaced during welding and can prevent solder from splashing to the motor stator 10, thereby playing a role in positioning and protecting the motor stator 10. After welding is completed, the hot press head 40 moves to the third stroke, removes the protective cover 30 covering the substrate 20, and completes the welding operation of the motor stator 10.

This invention's jig and welding manufacturing method are suitable for the welding process of motor stators. The wire outlet of the winding motor stator can be fully welded at one time, and the motor stator can be fixed and protected from solder spatter during the welding process.

The above has been a detailed description of this creation, but what is described above is only a preferred embodiment of this creation and should not limit the scope of implementation of this creation. That is, all equal changes and modifications made according to the application scope of this creation should still fall within the scope of patent coverage of this creation.

1: Motor stator welding fixture

10: Motor stator

11: Coil

12: Outlet section

20: Substrate

22: Soldering points

30: Protective cover

32: Wire duct

40: Hot press head

42: Hot pressing end

Claims (5)

A motor stator welding fixture is used for welding a motor stator and a substrate. The motor stator welding fixture includes: a protective cover, which is used to cover the motor stator and the substrate to provide protection and positioning. The protective cover has a plurality of wire slots for the outlet of the motor stator to be exposed outside the protective cover; and a hot press head, which has a hot press end corresponding to the parts of the motor stator and the substrate to be welded. The hot press head covers the outer side of the protective cover, and the parts of the motor stator and the substrate to be welded are heated and welded by the hot press end. The motor stator welding fixture as described in claim 1, wherein the motor stator has a plurality of silicon steel sheets and the upper and lower sides of the silicon steel sheets have an upper insulating frame and a lower insulating frame, and the silicon steel sheets are wound with a plurality of coils outside, the substrate has a plurality of welding points on one side corresponding to the motor stator, the coils extend outward to form a wire outlet corresponding to the aforementioned welding points, and the wire slot on the protective cover is provided with a guide angle to align the coil of the motor stator with the welding point. The motor stator welding fixture as described in claim 1, wherein the hot press head has a first stroke, a second stroke and a third stroke, and when the hot press head is in the first stroke and the third stroke, the hot press head does not cover the protective cover, and when the hot press head is in the second stroke, the hot press head covers the outer side of the protective cover and makes the hot press end contact the welding point for heating and welding. The motor stator welding fixture as described in claim 3, wherein the hot press head is located in the first stroke before welding is performed, the hot press head is located in the second stroke when welding is performed, and the hot press head is located in the third stroke after welding is completed. The motor stator welding jig as described in claim 2, wherein solder is arranged on the welding point.

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