Motor stator welding jig

Abstract

The utility model provides a motor stator welding jig which is used for welding a motor stator and a substrate, the motor stator welding jig comprises a protective cover and a hot pressing head, the protective cover is used for covering the motor stator and the substrate to provide protection and positioning, and the hot pressing head is used for pressing the motor stator and the substrate. The protective cover is provided with a plurality of wire slots for the wire outlet part of the motor stator to be exposed out of the protective cover; and the hot-pressing head is provided with a hot-pressing end corresponding to the motor stator and the to-be-welded part of the substrate, the hot-pressing head covers the outer side of the protective cover, and the to-be-welded part of the motor stator and the to-be-welded part of the substrate is heated and welded through the hot-pressing end. According to the utility model, the coil of the motor stator after winding can be completely welded at one time, and the motor stator can be fixed and the soldering tin can be prevented from splashing during the welding process.

Description

Technical Field

[0001] The utility model relates to a stator welding jig, in particular to a motor stator welding jig and a welding manufacturing process using the jig. Background Art

[0002] Due to the axial space limitation of ultra-thin notebook computer 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. It requires the operator to have good eyesight and rich experience, and it is difficult to achieve through automated production, so the production process takes a long time.

[0003] For example, application number TW105101150 from Taiwan, China discloses a stator assembly of a motor, which assembly 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 on 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 portion of the winding coil passes through at least two grooves, the wire outlet portion of the winding coil crosses the first end face of the metal column.

[0004] The wire outlet of the winding coil needs to be manually pulled by hand, and after passing through at least two corresponding grooves, it bypasses one or two petals to the left or right from the outside, and then passes through two opposite grooves. After that, it bypasses one or two petals to the left or right again from the other outside, and passes through another two opposite grooves, and finally the wire outlet is tied to the braid. Since the process relies entirely on tedious manual operations and different manual experiences, the winding method or force may be different or uneven, causing the wire outlet to break or loosen easily. What's more, the inefficient operation of winding and tying the petals multiple times makes the entire winding process time-consuming and cannot be completed quickly, which affects production efficiency and cannot be applied to automated production.

[0005] In addition, after the motor stator is wound, the coil and the soldering 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. During manual welding, the coil is prone to breakage, and the specifications of each welding point cannot be unified. For example, the height is too high and interferes with other components, and the efficiency of manual welding is relatively low. Currently, there is no consistent automated fixture and welding method that can perform automated welding after the motor stator is wound to achieve a consistent operation process.

[0006] In view of the above problems, the inventor of this case worked hard and devoted himself to research, and finally completed the motor stator welding fixture and welding manufacturing method of this case, overcoming the shortcomings of the conventional technology. Utility Model Content

[0007] The main purpose of the utility model is to provide a motor stator welding fixture which can perform one-time comprehensive welding on the coils of the motor stator after the motor stator is wound.

[0008] Another object of the present invention is to provide a motor stator welding fixture that can effectively prevent solder splashing when the motor stator coil is being welded.

[0009] To achieve the above-mentioned purpose, the utility model provides a motor stator welding jig for use in welding a motor stator and a substrate. The motor stator welding jig includes: a protective cover and a hot pressing 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 allowing 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 coils of the motor stator to align with the welding points. The hot pressing head has a hot pressing end corresponding to the parts of the motor stator and the substrate to be welded. The hot pressing head covers the outside of the protective cover and heats and welds the parts of the motor stator and the substrate to be welded by the hot pressing end.

[0010] In one embodiment, the motor stator has a plurality of silicon steel sheets and an upper insulating frame and a lower insulating frame are provided on the upper and lower sides of the plurality of silicon steel sheets, and a plurality of coils are wound around the outside of the plurality of silicon steel sheets. A side of the substrate corresponding to the motor stator is provided with a plurality of welding points, and the plurality of coils extend outward to form an outlet portion.

[0011] In one embodiment, the wire grooves on the protective cover are provided with guide angles to align the coils of the motor stator to the welding points.

[0012] In one implementation, the hot pressure head has a first stroke, a second stroke and a third stroke. When the hot pressure head is in the first stroke and the third stroke, the hot pressure head is not covered with a protective cover. When the hot pressure head is in the second stroke, the hot pressure head covers the outside of the protective cover and makes the hot pressure end contact the welding point for welding. Before welding is performed, the hot pressure head is in the first stroke. When welding is performed, the hot pressure head is in the second stroke. After welding is completed, the hot pressure head is in the third stroke.

[0013] In one embodiment, solder is arranged on the solder joints, the thickness of the solder is 0.1 mm to 0.2 mm, and the substrate is a flexible printed circuit board (FPCB).

[0014] The utility model further provides a welding manufacturing method using the motor stator welding fixture, comprising the following steps: providing a motor stator and a substrate to be welded, arranging the motor stator correspondingly above the substrate for preliminary fixing, and then stretching one end of the plurality of coils on the motor stator to a welding point on the substrate where solder has been pre-arranged; then covering the motor stator with a protective cover for protective shielding; covering the outside of the protective cover with a hot pressing head, and contacting the hot pressing end of the hot pressing head with the welding point, heating and pressurizing the welding point, melting the solder at the welding point, and after the solder at the welding point is cooled and solidified, the coil of the motor stator is welded to the welding point.

[0015] In one embodiment, the wire slot is provided with a guide angle to align the coil of the motor stator to the welding point.

[0016] In one implementation, the hot pressing head has a first stroke, a second stroke and a third stroke. When the hot pressing head is in the first stroke and the third stroke, the hot pressing head is not covered with a protective cover. When the hot pressing head is in the second stroke, the hot pressing head covers the outside of the protective cover and the hot pressing end welds the welding point. When welding has not yet been performed, the hot pressing head is in the first stroke, when welding is performed, the hot pressing head is in the second stroke, and after welding is completed, the hot pressing head is in the third stroke.

[0017] By means of the above technical solution, the utility model provides a motor stator welding jig and a welding manufacturing method thereof, wherein the jig can be used to fix the motor stator after winding, and during the welding process, the motor stator after winding is protected and shielded by a protective cover so that the motor stator after winding is not splashed by solder, and the hot pressing end of the hot pressing head can achieve one-time and comprehensive welding of the welding points. This case unifies the welding process of the motor stator, achieving the beneficial effect of a simple processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the motor stator of the utility model being arranged on a substrate.

[0019] Figure 2 It is a schematic diagram of the decomposed state of the utility model.

[0020] Figure 3 This is a schematic diagram of the hot pressing head of the utility model being located in the first stroke.

[0021] Figure 4A This is a schematic diagram of the hot pressing head of the utility model being located at the second stroke.

[0022] Figure 4B This is a partial enlarged view of the hot pressing head of the utility model located at the second stroke.

[0023] Figure 5 This is a schematic diagram of the thermal pressing head of the utility model being located at the third stroke.

[0024] Figure 6 The figure is a flow chart of the welding manufacturing of the motor stator of the present invention.

[0025] Explanation of the reference numerals: 1 motor stator welding jig; 10 motor stator; 11 coil; 12 wire outlet; 20 substrate; 22 solder joint; 30 protective cover; 32 wire slot; 40 hot pressing head; 42 hot pressing end; S1, S2, S3 steps. DETAILED DESCRIPTION

[0026] The above-mentioned purpose and the structural and functional characteristics of the present invention will be described based on the preferred embodiments of the accompanying drawings.

[0027] Figure 1 The motor stator of the present invention is arranged on a substrate schematic diagram. As shown in the figure, the motor stator 10 is a motor stator 10 after winding. 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 wire outlets 12, but 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 are provided on the upper and lower sides of the plurality of silicon steel sheets. A plurality of coils 11 are wound around the outside of the plurality of silicon steel sheets. After the motor stator 10 is wound, it is placed on a substrate 20. The coil 11 can be fixed by, for example, providing 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 outlets 12 extending outward from the plurality of coils 11 are correspondingly provided at the aforementioned welding points 22. As shown in the present case Figure 1 As shown, the substrate 20 has a preset welding point 22, and the wire outlet portion 12 extending from the coil 11 of the motor stator 10 extends outward and contacts the preset welding point 22 on the substrate 20, and then the welding operation is performed.

[0028] Figure 2 This is a schematic diagram of the decomposition state of the utility model. Please also refer to Figure 3As shown in the figure, the utility model provides 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 pressing 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 The substrate 20 is provided with a plurality of solder joints 22, on which solder is arranged, and the thickness of the solder may be, for example, 0.1 mm to 0.2 mm, but not limited thereto; the protective cover 30 corresponds to the substrate 20 and may cover the substrate 20, and the protective cover 30 may be, for example, a circular cover (lid, cap) body with a hollow interior, but not limited thereto; when the protective cover 30 covers the substrate 20, it may shield and fix the motor stator 10 placed on the substrate 20, and play a role in fixing and protecting; the outer periphery of the opening of the protective cover 30 has a plurality of wire grooves 32, and the wire grooves 32 correspond to the plurality of solder joints 22, so that the wire outlet 12 of the coil 11 of the motor stator 10 may be exposed outside the protective cover 30, and the wire grooves 32 are provided with guide angles to guide the wire outlet 12 of the coil 11 of the motor stator 10 to align with the solder joints 22.

[0029] Figure 3 This is a schematic diagram of the thermal compression head of the utility model being located in the first stroke. As shown in the figure, the thermal compression head 40 has a thermal compression end 42 thereon corresponding to the parts to be welded of the motor stator 10 and the substrate 20. The thermal compression head 40 can be, for example, a circular cover (lid, cap) body with a hollow interior, which is slightly larger than the protective cover 30 and can accommodate the protective cover 30. The thermal compression head 40 can be implemented with a first stroke, a second stroke and a third stroke. When the thermal compression head 40 is located in the first stroke, it has not yet covered the protective cover 30 and welding has not yet been performed.

[0030] Figure 4A This is a schematic diagram of the hot pressing head of the utility model in the second stroke. Please also refer to Figure 3 As shown in the figure, the hot pressing head 40 moves to the second stroke and covers the outside of the protective cover 30, and the outlet portion 12 of the coil 11 of the motor stator 10 is welded to the welding point 22 by the hot pressing end 42 of the hot pressing head 40. The hot pressing end 42 of the hot pressing head 40 contacts the welding point 22 and heats and welds the welding point 22 at one time, thereby achieving the effect of consistent operation and comprehensive welding. During the welding process, since the protective cover 30 covers the motor stator 10, 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, thereby playing the role of positioning and protecting the motor stator 10.

[0031] Figure 4BThis is a partial enlarged view of the thermocompression head of the utility model in the second stroke. As shown in the figure, the thermocompression head 40 is moved to the second stroke to enter the welding state. The thermocompression end 42 of the thermocompression 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 onto the motor stator 10 during the welding process, thereby fixing and protecting the motor stator 10. Finally, the lead-out portion 12 of the motor stator 10 is welded to the solder joint 22 by the thermocompression head 40.

[0032] Figure 5 This is a schematic diagram of the thermal compression head of the utility model being located at the third stroke. As shown in the figure, when the welding operation is completed, the thermal compression head 40 is moved to the third stroke so that the thermal compression 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.

[0033] In detail, the hot pressing head 40 has a first stroke, a second stroke and a third stroke. When the hot pressing head 40 is in the first stroke and the third stroke, the hot pressing head 40 does not cover the protective cover 30. When the hot pressing head 40 is in the second stroke, the hot pressing head 40 covers the outside of the protective cover 30 and makes the hot pressing end 42 contact the welding point 22 for welding. That is, the hot pressing head 40 is in the first stroke before welding is performed, and the hot pressing head 40 is in the second stroke when welding is performed. After welding is completed, the hot pressing head 40 is in the third stroke.

[0034] Figure 6 This is the flow chart of the motor stator welding manufacturing of the utility model. Please also refer to Figure 1-5 As shown in the figure, the utility model further provides a welding manufacturing method for a motor stator, comprising the following steps:

[0035] Step S1: Provide a motor stator 10 and a substrate 20 to be welded, place the motor stator 10 on the substrate 20 for preliminary fixation, and then stretch one end of the plurality of coils 11 on the motor stator 10 to a welding point 22 on the substrate 20 where solder is pre-arranged.

[0036] Step S2: Cover the motor stator 10 with the protective cover 30 for protection;

[0037] Step S3: Cover the outside of the protective cover 30 with the hot pressing head 40, and place the hot pressing end of the hot pressing head 40 at the corresponding soldering point, heat and pressurize the soldering point, and melt the solder at the soldering point. After the solder at the soldering point cools and solidifies, the coil 11 of the motor stator is welded to the soldering point.

[0038] 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 pressing head 40 has a first stroke, a second stroke and a third stroke. When the hot pressing head 40 is in the first stroke and the third stroke, the hot pressing head 40 does not cover the protective cover 30. When the hot pressing head 40 is in the second stroke, the hot pressing head 40 covers the outer side of the protective cover 30 and the hot pressing end 42 welds the welding point 22. In other words, when welding has not yet been performed, The hot pressing head 40 is located at the first stroke, and is located at the second stroke when welding is performed. After welding is completed, the hot pressing head 40 is located at the third stroke. With the multiple settings, when the hot pressing head is located at the second stroke for welding, since the protective cover 30 covers the motor stator 10, the motor stator 10 will not be displaced during welding and solder splashing to the motor stator 10 can be prevented, thereby positioning and protecting the motor stator 10. After welding is completed, the hot pressing head 40 is moved to the third stroke, and the protective cover 30 covering the substrate 20 is removed to complete the welding operation of the motor stator 10.

[0039] The jig and welding manufacturing method of the utility model are applicable to the welding process of the motor stator, and the wire outlet part of the coil of the wound motor stator can be fully welded at one time, and the motor stator is fixed and protected from solder splashing during the welding process.

[0040] The above description has been a detailed description of the utility model, and the above description is only a preferred embodiment of the utility model, which should not be used to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made based on the concept of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A motor stator welding jig for welding a motor stator and a substrate, characterized in that: The motor stator welding fixture includes: a protective cover, used for covering the motor stator and the substrate to provide protection and positioning, the protective cover having a plurality of wire slots so that the wire outlet of the motor stator is exposed outside the protective cover; and A heat pressing head is provided with a heat pressing end, the heat pressing end corresponds to the position of the motor stator and the substrate to be welded, the heat pressing head covers the outside of the protective cover, and heats and welds the position of the motor stator and the substrate to be welded by the heat pressing end.

2. The motor stator welding jig according to claim 1, characterized in that: The motor stator has a plurality of silicon steel sheets, and an upper insulating frame and a lower insulating frame are provided on the upper and lower sides of the plurality of silicon steel sheets. A plurality of coils are wound around the outside of the plurality of silicon steel sheets. A side of the substrate corresponding to the motor stator has a plurality of welding points. The plurality of coils extend outward to form a wire outlet portion, and the wire outlet portion is correspondingly provided at the aforementioned welding point. The wire groove on the protective cover is provided with a guide angle for guiding the coil of the motor stator to align with the welding point.

3. The motor stator welding jig according to claim 2, characterized in that: The hot pressing head has a first stroke, a second stroke and a third stroke. When the hot pressing head is located at the first stroke and the third stroke, the hot pressing head is not covered with the protective cover. When the hot pressing head is located at the second stroke, the hot pressing head covers the outside of the protective cover and makes the hot pressing end contact the welding point for heating and welding.

4. The motor stator welding jig according to claim 2, characterized in that: Solder is arranged on the soldering point.

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