A new type of welding-free pin for band plate motor

Abstract

The utility model relates to a belt motor technology field especially a new type exempt from welding pin pin for belt motor, and the side of end cover is close to stator mould has the abutment wall, the side of stator mould is close to end cover has the public end pin, the PCB board is equipped with the locating hole, the exempt from welding pin pin has the insertion end, the abutting end, the locating dog, the insertion end at least partial with public end pin insertion, the abutting end at least partial with abutment wall abut, the locating dog at least partial insertion locating hole. The use of the exempt from welding pin pin does not need heat source, when using on the belt motor, can protect the sensitive element on the PCB board, compared with the soldering type pin, when using, will not produce tin slag and other chemical substances and volatile matter, has good environmental protection, avoids the staff inhaling and influences the health, the use of the exempt from welding pin pin does not need high-precision laser soldering tin equipment, greatly reduces the production cost, improves production efficiency again.

Description

Technical Field

[0001] This utility model relates to the field of plate motor technology, and in particular to a novel solderless pin for plate motors. Background Technology

[0002] Soldering the pins is a crucial step in motor manufacturing, ensuring the motor's performance and reliability. Many existing workshops use laser soldering to connect the stator core, PCB board, pins, and large end caps, ensuring stable current and signal transmission. Therefore, in motor production, soldering the pins is not merely a simple physical connection, but a critical process that comprehensively considers mechanical strength, electrical performance, and production efficiency.

[0003] Many factories currently use laser soldering to weld pins when producing motors with PCB boards. Laser soldering technology requires high-precision automated equipment and solder wire. The investment in equipment and solder is unavoidable, which will further increase the production cost of motors. In actual production, in addition to additional investment in equipment and solder, employees are required to set up special positions to inspect solder joints to avoid problems such as cold solder joints and missing solder joints. Employees also need to blow and suck up the solder dross next to the solder and manually standardize the solder joints, such as scraping and clamping solder balls. These are also additional costs brought about by soldering pins. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, such as increased cost and poor soldering caused by the need for soldering of the pins of existing motors with PCB boards, and to propose a new type of solderless pin for motors with PCB boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel solderless pin for a board-mounted motor, the board-mounted motor comprising a stator mold, a PCB board assembled with the stator mold, and an end cap assembled with the stator mold, the end cap having an abutment wall on the side near the stator mold, the stator mold having a common end pin on the side near the end cap, the PCB board having a positioning hole, the solderless pin having an insertion end, an abutment end, and a positioning claw, the insertion end being at least partially inserted into the common end pin, the abutment end being at least partially abutting against the abutment wall, and the positioning claw being at least partially inserted into the positioning hole.

[0007] This utility model proposes a novel solderless pin for PCB motors, which has the following advantages: The solderless pin requires no heat source and protects sensitive components on the PCB when used in PCB motors. Compared to soldered pins, it does not produce dross or other chemicals and volatiles, thus providing good environmental protection and preventing employees from inhaling harmful substances. The solderless pin eliminates the need for high-precision laser soldering equipment, external solder wire purchases, and employee monitoring of solder joints, significantly reducing production costs and improving efficiency. Furthermore, the solderless pin allows for simultaneous connection between the PCB and the large end cap; only dimensional modifications are needed to accommodate different stator molds or production requirements, making it more flexible and convenient to use and replace without soldering. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the split three-dimensional structure of this utility model;

[0009] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0010] Figure 3 This is a schematic diagram of the solderless pin structure of this utility model. Figure 1 ;

[0011] Figure 4 This is a schematic diagram of the solderless pin three-dimensional structure of this utility model. Figure 2 ;

[0012] Figure 5 This is a schematic diagram of the structure of the third extension and the end cap of this utility model.

[0013] In the diagram: 1. Stator mold; 2. PCB board; 3. Solderless pin; 4. End cap; 5. Common pin; 6. Insertion end; 7. Abutment end; 8. Positioning claw; 9. Positioning hole; 10. Abutment wall; 11. First extension; 12. Second extension; 13. Third extension; 14. Punch hole; 15. Protrusion; 16. Main plate; 17. Fourth extension; 18. Fifth extension; 19. Sixth extension; 20. Seventh extension; 21. Eighth extension; 22. Ninth extension; 23. First flare; 24. Closure; 25. Second flare; 26. Insertion interface. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-5A novel solderless pin 3 for a board motor. The board motor includes a stator mold 1, a PCB board 2 assembled with the stator mold 1, and an end cap 4 assembled with the stator mold 1. The end cap 4 has an abutment wall 10 on the side near the stator mold 1. The stator mold 1 has a common end pin 5 on the side near the end cap 4. The PCB board 2 is provided with a positioning hole 9. The solderless pin 3 has an insertion end 6, an abutment end 7, and a positioning claw 8. The insertion end 6 is at least partially inserted into the common end pin 5, the abutment end 7 is at least partially abutted against the abutment wall 10, and the positioning claw 8 is at least partially inserted into the positioning hole 9.

[0016] During assembly, the stator mold 1 is first positioned in conjunction with the PCB board 2 and the end cover 4. The end cover 4 has an abutment wall 10 on the side near the stator mold 1, while the stator mold 1 has a common end pin 5 on the side near the end cover 4. The insertion end 6 of the solderless pin 3 is inserted axially into the common end pin 5, achieving electrical connection between them; simultaneously, the abutment end 7 faces and fits against the abutment wall 10, forming a structural limit; the positioning claw 8 is inserted downwards into the pre-set positioning hole 9 on the PCB board 2, ensuring the spatial positioning accuracy of the solderless pin 3 during assembly and preventing lateral or rotational displacement.

[0017] This structure achieves electrical connection through the physical mating of the plug end 6 and the common end pin 5, eliminating the need for soldering. The abutment end 7 and the positioning claw 8 enable multi-point positioning and fixation of the pin body, ensuring stable conduction while preventing loosening or poor contact due to vibration. It is especially suitable for heat-sensitive PCB boards 2, effectively preventing component damage or poor soldering caused by thermal stress during traditional soldering, thus improving reliability and assembly efficiency.

[0018] These solderless connectors require no heat source and can protect sensitive components on PCBs when used on motors with integrated circuits. Compared to soldered connectors, they do not produce dross or other chemicals or volatiles, offering excellent environmental protection and preventing employees from inhaling harmful substances. They eliminate the need for high-precision laser soldering equipment, external solder wire purchases, and dedicated staff to monitor solder joints, significantly reducing production costs and increasing efficiency. Furthermore, these connectors allow for simultaneous connection between the PCB and the large end cap. Only dimensional modifications are needed to accommodate different stator molds or production requirements, making them flexible and convenient to use and replace without the need for soldering.

[0019] The solderless pin 3 includes a body plate 16, and an EMC pin slot with an open top in the stator mold 1. The body plate 16 is at least partially embedded in the EMC pin slot.

[0020] The main plate 16 is matched with the EMC pin slot with an open top in the stator mold 1 to improve the stability of the positioning between the solderless pin 3 and the stator mold 1.

[0021] refer to Figure 3 The positioning claw 8 includes a fourth extension 17 extending along the y-axis of the main body plate 16. The end of the fourth extension 17 has a fifth extension 18 extending in the opposite direction of the z-axis. The bottom surface of the fourth extension 17 abuts against the top surface of the PCB board 2, and the fifth extension 18 is inserted into the positioning hole 9.

[0022] The positioning claw 8 achieves a stable fit with the PCB board 2 through the combination structure of the fourth extension 17 and the fifth extension 18. The fourth extension 17 extends downward from the main body plate 16 along the y-axis, and its bottom surface is in contact with the top surface of the PCB board 2, providing vertical limiting support; the fifth extension 18 extends further from the end of the fourth extension 17 along the opposite z-axis and is vertically inserted into the positioning hole 9 on the PCB board 2 to achieve precise locking of the lateral position.

[0023] Both the fourth extension 17 and the fifth extension 18 are integrally formed with the main body plate 16 by bending, which not only improves the structural strength, but also avoids the tolerance error caused by the assembly of independent parts, ensuring a more stable fixing effect of the pins on the PCB board 2.

[0024] refer to Figure 3 , Figure 5 The abutment end 7 includes a first extension 11 extending along the z-axis of the main body plate 16. The end of the first extension 11 is bent along the x-axis to form a second extension 12. The second extension 12 forms an acute angle with the end cap 4. The end of the second extension 12 is bent along the x-axis to form a third extension 13. The second extension 12 and the third extension 13 are bent in opposite directions. In its natural state, the third extension 13 forms an acute angle with the end cap 4. The third extension 13 at least partially abuts against the abutment wall 10. The third extension 13 is in surface contact with the abutment wall 10. And / or, there are at least two abutment ends 7, which are distributed at intervals.

[0025] The abutment end 7 is composed of a first extension 11, a second extension 12, and a third extension 13, which are integrally formed on the main body plate 16 by continuous bending to form an elastic S-shaped structure. The first extension 11 extends from the main body plate 16 along the z-axis, and its end is bent along the x-axis to form the second extension 12. The second extension 12 forms an acute angle with the end cap 4 to provide a preload force in the direction of the abutment wall 10. The end of the second extension 12 is then bent along the opposite x-axis to form the third extension 13. In its natural state, the third extension 13 also forms an acute angle with the end cap 4 and at least partially abuts against the surface of the abutment wall 10 to achieve surface contact.

[0026] The S-shaped bending structure formed by the first extension 11, the second extension 12, and the third extension 13 gives the abutment end 7 excellent elastic deformation capability. When the solderless pin 3 is installed between the stator mold 1 and the end cover 4, the third extension 13 can automatically adjust its angle and position during the crimping process, always maintaining reliable contact with the abutment wall 10, thereby improving positioning stability and contact reliability. Furthermore, the presence of at least two abutment ends 7 further increases the contact area with the end cover.

[0027] The plug end 6 includes a sixth extension 19 extending along the y-axis direction of the main body plate 16. The sixth extension 19 has a seventh extension 20 extending in the opposite direction of the z-axis. The seventh extension 20 has a plug interface 26 with an open bottom end. The common end pin 5 is inserted into the plug interface 26 along the z-axis direction.

[0028] The insertion end 6 is composed of a sixth extension 19 and a seventh extension 20. The sixth extension 19 extends along the y-axis direction of the main body plate 16, while the seventh extension 20 extends from its end in the opposite direction along the z-axis, forming an open insertion interface 26 for insertion with the common end pin 5. All of the above components are integrally formed by sheet metal bending process.

[0029] The sixth extension 19 has an eighth extension 21 bent at the end along the z-axis. The eighth extension 21 has a ninth extension 22 extending in the opposite direction of the z-axis. The ninth extension 22 is arranged parallel to the seventh extension 20. The ninth extension 22 has a plug interface 26 with an open bottom end. The common end pin 5 is inserted into the plug interface 26 along the z-axis direction.

[0030] The plug end 6 adopts a double-layer bending structure with a seventh extension 20 and a ninth extension 22, which increases the contact area between the plug end 6 and the common end pin, and is integrally bent for better overall integrity.

[0031] The insertion interface 26 includes a first flared portion 23, a constricted portion 24, and a second flared portion 25 connected together. The second flared portion 25 is an "eight"-shaped opening that expands outward from the bottom.

[0032] The shape of the connector 26 is as described above, which can accommodate the width of the common end pin, achieve a better clamping effect, and is not easily damaged, thus improving the convenience, stability and compatibility of the connection.

[0033] The main body plate 16 has a stamping hole 14 at one end near the end cover 4, and a protrusion 15 extending along the y-axis is stamped on the top wall of the stamping hole 14 on the main body plate 16.

[0034] The bumps are formed by stamping, which facilitates the removal and disassembly process and improves assembly efficiency.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of welding-free pin (3) for a belt plate motor, the belt plate motor comprising a stator mold (1), a PCB plate (2) assembled with the stator mold (1), an end cover (4) assembled with the stator mold (1), characterized in that, The end cap (4) has an abutment wall (10) on the side near the stator mold (1), and the stator mold (1) has a common end pin (5) on the side near the end cap (4). The PCB board (2) is provided with a positioning hole (9). The solderless pin (3) has an insertion end (6), an abutment end (7), and a positioning claw (8). The insertion end (6) is at least partially inserted into the common end pin (5), the abutment end (7) is at least partially abutted against the abutment wall (10), and the positioning claw (8) is at least partially inserted into the positioning hole (9).

2. A new type of solderless pin for use in a belt plate motor according to claim 1, characterized in that, The solderless pin (3) includes a main plate (16), and the stator mold (1) has an EMC pin slot with an open top, and the main plate (16) is at least partially embedded in the EMC pin slot.

3. A new type of solderless pin for use in a band plate motor as claimed in claim 2, wherein, The positioning claw (8) includes a fourth extension (17) extending along the y-axis direction of the main body plate (16), and the end of the fourth extension (17) has a fifth extension (18) extending in the opposite direction of the z-axis. The bottom surface of the fourth extension (17) abuts against the top surface of the PCB board (2), and the fifth extension (18) is inserted into the positioning hole (9).

4. A new type of solderless pin for use in a belt plate motor as claimed in claim 2, characterized in that, The abutting end (7) includes a first extension (11) extending along the z-axis of the main body plate (16), the end of the first extension (11) is bent along the x-axis to form a second extension (12), the second extension (12) forms an acute angle with the end cap (4), the end of the second extension (12) forms a third extension (13) bent along the x-axis, the second extension (12) and the third extension (13) are bent in opposite directions, and in the natural state the third extension (13) forms an acute angle with the end cap (4), and the third extension (13) at least partially abuts against the abutting wall (10).

5. A new type of solderless pin for use in a belt plate motor according to claim 4, characterized in that, The third extension (13) contacts the surface of the abutting wall (10); And / or, there are at least two abutting ends (7), and the two abutting ends (7) are spaced apart.

6. A new type of solderless pin for use in a belt plate motor as claimed in claim 2, characterized in that, The plug end (6) includes a sixth extension (19) extending along the y-axis direction of the main body plate (16), the sixth extension (19) having a seventh extension (20) extending in the opposite direction of the z-axis, the seventh extension (20) having a plug interface (26) with an open bottom end, and the common end pin (5) being inserted into the plug interface (26) along the z-axis direction.

7. A new type of solderless pin for use in a band plate motor as claimed in claim 6, wherein, The sixth extension (19) has an eighth extension (21) bent at the end along the z-axis. The eighth extension (21) has a ninth extension (22) extending in the opposite direction of the z-axis. The ninth extension (22) is arranged parallel to the seventh extension (20). The ninth extension (22) has a plug-in interface (26) with an open bottom end. The common end pin (5) is inserted into the plug-in interface (26) along the z-axis direction.

8. A new type of solderless pin for a belt plate motor according to claim 6 or 7, characterized in that, The insertion interface (26) includes a first flared part (23), a constricted part (24), and a second flared part (25) connected together. The second flared part (25) is an "eight" shaped opening that expands outward from the bottom.

9. A new type of solderless pin for strip plate motor according to any one of claims 2-7, characterized in that, The main body plate (16) is provided with a punching hole (14) near one end of the end cover (4), and the main body plate (16) is punched with a protrusion (15) extending along the y-axis direction on the top wall of the punching hole (14).

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