Novel pin motor PCB suitable for automatic assembly

Abstract

The utility model relates to the technical field of motors, in particular to a novel pin motor PCB suitable for automatic assembly, which comprises an annular PCB body corresponding to the appearance of a motor stator, a plurality of U-shaped grooves are formed in the side edge of the PCB body in the circumferential direction, and the U-shaped grooves comprise U-shaped clamping grooves, U-shaped pin grooves and U-shaped positioning grooves; the PCB body comprises a PCB inner side face facing a stator and a PCB outer side face facing the outer side, three-phase power line bonding pads are arranged on the outer side face of the PCB body, and the power line bonding pads comprise a W-phase bonding pad, a U-phase bonding pad and a V-phase bonding pad and are used for being connected with a three-phase line to supply power to a stator winding. According to the device, automatic assembling, welding and motor stator testing are integrated, working hours are saved, meanwhile, the production difficulty is lowered, and the motor production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a new type of PCB board for pin-insertion motors suitable for automatic assembly. Background Art

[0002] With the development of motor automation production, the trend of replacing manual labor with robots is becoming more and more obvious. However, existing industrial robots are far less simple, flexible and reliable than manual operation. In particular, due to the complexity of motor production materials, automated production equipment often requires a lot of customized fixtures, which is costly and complex.

[0003] Existing motor production often uses PCB boards to replace motor winding wiring. The mainstream PCB boards on the market are mainly of two types: adapter pin stators and pinless stators. For pin stators, the function of the pins is to wrap the enameled wire of the motor winding around the pins, and then manually weld the pads on the PCB board to the motor stator to complete the connection of the winding. For pinless stators, pinless stators require manual welding of the motor winding wire on the PCB board. Often, a lot of margin will be left for the motor winding to ensure that the motor winding can be properly installed on the PCB board. Manual wire management, welding and wire cutting are required during the process, which is complicated to operate, has low production efficiency and produces a lot of waste.

[0004] In summary, for the mainstream PCB boards on the market, whether they are adapted to pin-type stators or pin-free stators, manual welding is required, and testing must be performed after the motor is completed. This method cannot meet the needs of automated motor production.

[0005] Therefore, it is particularly necessary to provide a simple and reliable PCB board that does not require fixtures to fix, reduces production difficulty, and improves motor production efficiency. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and to provide a new type of PCB board for pin motors suitable for automated assembly, so as to solve the technical problems in the prior motor technology that the assembly of the PCB board and the motor stator requires fixture fixation and manual welding, thereby failing to provide work efficiency.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A novel pin-insertion motor PCB suitable for automated assembly, comprising a ring-shaped PCB body corresponding to the shape of the motor stator, a plurality of U-shaped grooves are provided along the circumferential direction on the side of the PCB body, and the U-shaped grooves include a U-shaped positioning groove, a U-shaped pin-insertion groove and a U-shaped positioning groove;

[0009] The PCB body includes an inner side surface of the PCB board facing the stator, and an outer side surface of the PCB board facing the outside. A three-phase power line pad is arranged on the outer side surface of the PCB board. The power line pad includes a W-phase pad, a U-phase pad and a V-phase pad, which are used to connect with the three-phase line to realize power supply to the stator winding.

[0010] Furthermore, a stator detection point is arranged on the outer side of the PCB board body.

[0011] Furthermore, a coding position is also arranged on the outer side of the PCB board.

[0012] Furthermore, the sum of the number of the U-shaped positioning slots and the number of the U-shaped pin slots corresponds to the number of pins provided on the motor stator.

[0013] Furthermore, pin pads for connecting the pins are provided at the U-shaped clamping groove and the U-shaped pin groove.

[0014] Furthermore, the U-shaped locking groove includes a locking hole for the insertion of the insertion pin, and a locking transverse groove connecting the locking hole with the outside.

[0015] Furthermore, the aperture of the locking hole is larger than the outer diameter of the insertion pin, and the outer diameter of the insertion pin is larger than the width of the locking transverse groove.

[0016] Furthermore, the inner diameter of the U-shaped pin slot is larger than the aperture of the locking hole.

[0017] Furthermore, there are 2 U-shaped slots, which are located on the same horizontal line.

[0018] Furthermore, the number of the U-shaped positioning grooves is at least 3.

[0019] Beneficial Effects

[0020] The utility model provides a new type of pin motor PCB board suitable for automated assembly. The PCB board can be directly fixed on the motor stator without using a fixture, and the robot can achieve the effect of preventing the board from falling off, which is conducive to the use of automated equipment. The device integrates automated assembly, welding and motor stator testing, which saves man-hours, reduces production difficulty and improves motor production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first-view structural schematic diagram of a new type of PCB board for a pin motor suitable for automated assembly described in the utility model;

[0022] Figure 2This is a second perspective structural schematic diagram of a new type of PCB board for a pin motor suitable for automated assembly according to the utility model;

[0023] Figure 3 This is a schematic diagram of a new type of pin motor PCB board suitable for automatic assembly and a motor stator after assembly according to the utility model;

[0024] Figure 4 This is a schematic diagram of the assembly method of a new type of pin motor PCB board and a motor stator suitable for automatic assembly described in the utility model.

[0025] Graphic marking:

[0026] 1-motor stator, 2-PCB board, 3-U-shaped card slot, 4-U-shaped pin slot, 5-U-shaped positioning slot, 6-W phase pad, 7-U phase pad, 8-V phase pad, 9-stator winding, 10-pin, 11-inking position, 12-pin pad, 13-stator detection point, 14-card slot jack, 15-card slot horizontal slot. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1 and 2 As shown, a new type of PCB board for pin motors suitable for automatic assembly includes a circular PCB board body 2 corresponding to the shape of the motor stator 1, and a plurality of U-shaped grooves are opened along the circumferential direction on the side of the PCB board body 2, and the U-shaped grooves include U-shaped clamping grooves 3, U-shaped pin grooves 4 and U-shaped positioning grooves 5. The notches of the U-shaped clamping grooves 3, the U-shaped pin grooves 4 and the U-shaped positioning grooves 5 are all set to be chamfered, so as to protect the notches and prevent damage caused by external collision;

[0029] The PCB body includes an inner side surface of the PCB board facing the stator, and an outer side surface of the PCB board facing the outside. A three-phase power line pad is arranged on the outer side surface of the PCB body 2, and the power line pad includes a W-phase pad 6, a U-phase pad 7 and a V-phase pad 8, which are used to connect with the three-phase line to realize power supply to the stator winding 9.

[0030] As an optimization of this embodiment, a stator detection point 13 is also provided on the outer surface of the PCB body 2, which is used to measure the three-phase resistance and judge whether the product is qualified by the resistance value; here, by providing a larger straight-mouth slot-shaped stator detection point, it is convenient for automated production line testing and optimizes the process flow. For the circuit structure corresponding to the stator detection point 13 on the PCB body 2, those not specifically described in this embodiment are deemed to be implemented by the existing technology, so the description of the circuit diagram is omitted.

[0031] In addition, in this embodiment, a coding position 11 is further provided on the outer surface of the PCB board body 2, and the coding position 11 is used for printing the traceability code so as to realize the traceability record of the product on the automated production line; the coding position is square and white in color.

[0032] It should be noted that the sum of the number of the U-shaped positioning slots 3 and the U-shaped pin slots 4 in this embodiment corresponds to the number of the pins 10 provided on the motor stator 1, which can ensure that all the pins 10 are connected after assembly with the motor stator.

[0033] A U-shaped pin pad 12 for connecting the pin 10 is provided at the U-shaped slot 3 and the U-shaped pin slot 4; this structure can effectively avoid the tedious manual welding; in addition, it should be noted that the depth of the U-shaped slot 3 and the U-shaped pin slot 4 is the same.

[0034] This structure can realize two connection modes between the PCB board 2 and the motor stator 1 in this embodiment, namely, the motor stator with pins and the motor stator without pins:

[0035] For the motor stator with pins, it is only necessary to complete the plugging of the pin 10 with the U-shaped clamping groove 3 and the U-shaped pin groove 4, so that the pin can be in contact with the pin pad 12 and achieve electrical connection;

[0036] For a motor stator without pins, it is only necessary to stretch the winding connection of each stator winding 9 to the U-shaped clamping slot 3 or the U-shaped pin slot 4, and contact it with the pin pad 12, and then perform external spot welding.

[0037] like Figure 2 As shown, as an optimization of the U-shaped slot 3 in this embodiment, the U-shaped slot 3 includes a slot insertion hole 14 for inserting the pin 10, and a straight-line slot 15 connecting the slot 14 with the outside.

[0038] The aperture of the locking hole 14 is larger than the outer diameter of the plug pin 10, and the outer diameter of the plug pin 10 is larger than the width of the locking transverse groove 15;

[0039] Specifically, Figure 3 and4 As shown, the PCB board provided by the present solution and the motor stator 1 are assembled in a vertical straight-plug manner. When the corresponding pin 10 is inserted into the positioning hole 14, the remaining pins 10 on the motor stator 1 are also respectively plugged into the U-shaped pin slots 4. At this time, since the outer diameter of the pin 10 is greater than the width of the positioning transverse slot 15, the pin 10 located in the positioning hole 14 is limited in the positioning hole 14, and cooperates with the remaining U-shaped pin slots 4 to achieve a tight connection between the PCB board provided by the present solution and the motor stator 1, and the PCB board will not fall off.

[0040] The inner diameter of the U-shaped pin slot 4 is larger than the aperture of the locking hole 14 so as to accommodate the free insertion of the remaining pins 10 .

[0041] As a specific embodiment of the U-shaped positioning groove 3 in this solution, the U-shaped positioning groove 3 has 2 and is located on the same horizontal line. This structure can facilitate the rapid positioning of the PCB body 2 and the motor stator 1.

[0042] On the other hand, there are at least three U-shaped positioning grooves 5 for clamping by an external robot arm, thereby realizing intelligent picking and automatic assembly of PCB boards.

[0043] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of PCB board for pin motor suitable for automatic assembly, characterized in that: It comprises a circular PCB body (2) corresponding to the shape of the motor stator (1), a plurality of U-shaped grooves are provided on the side edge of the PCB body (2) along the circumferential direction, and the U-shaped grooves comprise a U-shaped clamping groove (3), a U-shaped pin groove (4) and a U-shaped positioning groove (5); The PCB body comprises an inner side surface of the PCB body facing the stator, and an outer side surface of the PCB body facing the outside. Three-phase power line pads are arranged on the outer side surface of the PCB body (2). The power line pads comprise a W-phase pad (6), a U-phase pad (7) and a V-phase pad (8) and are used to connect to the three-phase line to supply power to the stator winding (9).

2. A new type of PCB board for pin motors suitable for automated assembly according to claim 1, characterized in that: A stator detection point (13) is also provided on the outer side of the PCB body (2).

3. A new type of PCB board for pin motor suitable for automatic assembly according to claim 1, characterized in that: A coding position (11) is also provided on the outer side of the PCB body (2).

4. A new type of PCB board for pin motor suitable for automatic assembly according to claim 1, characterized in that: The sum of the number of the U-shaped positioning slots (3) and the number of the U-shaped pin slots (4) corresponds to the number of pins (10) provided on the motor stator (1).

5. A new type of PCB board for pin motors suitable for automated assembly according to claim 4, characterized in that: A pin pad (12) for connecting the pin (10) is provided at the U-shaped clamping groove (3) and the U-shaped pin groove (4).

6. A new type of PCB board for pin motors suitable for automated assembly according to claim 4, characterized in that: The U-shaped locking groove (3) comprises a locking insertion hole (14) for the insertion of the insertion pin (10), and a locking transverse groove (15) for connecting the locking insertion hole (14) with the outside.

7. A new type of PCB board for pin motors suitable for automated assembly according to claim 6, characterized in that: The aperture of the locking insertion hole (14) is larger than the outer diameter of the insertion pin (10), and the outer diameter of the insertion pin (10) is larger than the width of the locking transverse groove (15).

8. The novel PCB board for pin motors suitable for automated assembly according to claim 6, characterized in that: The inner diameter of the U-shaped pin slot (4) is larger than the hole diameter of the locking hole (14).

9. The novel PCB board for pin motors suitable for automated assembly according to claim 1, characterized in that: The U-shaped clamping grooves (3) are provided with 2 and are located on the same horizontal line.

10. The novel PCB board for pin motors suitable for automatic assembly according to claim 1, characterized in that: The number of the U-shaped positioning grooves (5) is at least 3.

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