A motor facilitating detection

Abstract

The utility model discloses a kind of motor of being convenient for detection, it is related to stepper motor technical field.The motor includes stepper motor body, PCB board and wire protection box, and welding point is equipped on PCB board, and wire protection box is opened with detection passage in correspondence with welding point position, detection probe can pass through passage and directly contact welding point, realize automatic power-on performance detection, without manual wiring.Detection passage can be designed as the overall hole of covering all welding points or multiple single holes corresponding to welding point one by one.In addition, motor is also equipped with detachable cover plate, and is locked by the positioning plug post with elastic lug with wire protection box plug-in, wire can be fixed by bending downward, so that the same motor structure compatible outlet and lower outlet two schemes.The utility model is simple in structure, low in cost, effectively realizes motor detection automation and outlet mode flexibility, significantly improves production efficiency and reduces management cost.

Description

Technical Field

[0001] This utility model relates to the field of stepper motors, specifically to a motor that is easy to test. Background Technology

[0002] In the manufacturing process of stepper motors, power-on performance testing is a crucial production inspection process to ensure motor quality. It is necessary to verify core performance parameters such as motor speed, torque, and current stability through power-on testing. Currently, most common stepper motors on the market have a welded wire structure, with their wiring relying on flexible wires to connect to the external circuit. However, this existing structure has significant technical drawbacks: due to the flexibility of the wires, it is difficult to accurately locate the wire ends and automatically connect them to the testing circuit on an automated testing line. This means that motor power-on performance testing still requires manual connection of the wires, which is not only inefficient but also prone to inaccurate test results due to human error, making it difficult to achieve full automation of production. Furthermore, the fixed wiring method of existing motors necessitates the design of separate production lines with different wiring structures to meet the needs of different customers, increasing production management costs and failing to meet the production requirements for cost reduction and efficiency improvement. Utility Model Content

[0003] To solve the above problems, the present invention adopts the following technical solution:

[0004] A motor that is easy to test includes a stepper motor body, a PCB board disposed on the stepper motor body, and a cable guard box adapted to the stepper motor body; the PCB board has solder joints for energizing the motor; the cable guard box has a detection channel corresponding to the solder joint position on the PCB board, and the size and position of the detection channel are set such that the detection probe can pass through the detection channel and directly contact the solder joint on the PCB board, thereby realizing the detection of the motor's energizing performance.

[0005] As a further improvement of this utility model, the detection channel is a monolithic hole, and the coverage area of ​​the monolithic hole can correspond to all solder joints on the PCB board. Preferably, the shape of the monolithic hole is rectangular, oblong, or rounded rectangle, and the inner wall of the monolithic hole is smooth to avoid obstructing the insertion of the detection probe.

[0006] As a further improvement of this utility model, the length of the integral hole is not less than the total length of all solder joints on the PCB board along the arrangement direction, and the width of the integral hole is not less than the maximum arrangement width of the solder joints on the PCB board.

[0007] As another improvement of this utility model, the detection channel consists of multiple single holes. As an optional improvement, the number and position of the single holes correspond one-to-one with the solder joints on the PCB board. Preferably, the shape of the single hole is circular, elliptical, square, rhomboid, or rounded square.

[0008] As a further improvement of this utility model, the motor also includes a cover plate; the motor's wire can be bent downwards in a preset direction, and the cover plate is detachably installed at the opening of the corresponding detection channel of the wire protection box. After the cover plate and the wire protection box are engaged, the downwardly bent wire can be fixed, so that the motor forms a bottom-out wire structure. Preferably, the detachable connection between the cover plate and the wire protection box is a plug-in connection; the cover plate is provided with a positioning pin for the corresponding detection channel, and the positioning pin is inserted into the detection channel on the wire protection box.

[0009] Compared with the prior art, the present invention has the following significant advantages:

[0010] By opening a testing channel on the junction box, the probes on the automated testing equipment can directly pass through the channel and contact the solder joints on the PCB board to complete the power-on test without any manual intervention, which greatly improves production efficiency and test consistency.

[0011] By adding a detachable cover plate, when a bottom-out wiring scheme is required, the wires can be bent downwards and fixed and protected by the cover plate. This enables the same motor structure to be compatible with both center-out and bottom-out wiring schemes, enhancing the product's market adaptability and simplifying production management and inventory costs.

[0012] This solution only requires adding openings / grooves to the existing cable box structure and can optionally include a cover plate. The modifications are minor and the manufacturing cost is extremely low, yet it can bring huge production benefits and management convenience, truly achieving cost reduction and efficiency improvement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0014] Figure 2 This is a schematic diagram of the interior of the cable protection box after disassembly in Example 1;

[0015] Figure 3 This is a schematic diagram of the structure of Example 2;

[0016] Figure 4 This is a schematic diagram of the interior of the cover plate after disassembly in Example 2;

[0017] Figure 5 This is a schematic diagram of the structure of Example 3;

[0018] Figure 6 This is a schematic diagram of the structure of Example 4.

[0019] Figure reference numerals: 1. Stepper motor body, 2. PCB board, 3. Cable guard box, 4. Detection probe, 5. Motor cover plate, 6. Overall hole, 7. Single hole, 8. Cover plate, 801. Positioning pin, 9. Opening. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Reference Figures 1 to 2 The illustrated motor, designed for easy testing, includes a stepper motor body 1, a PCB board 2, and a cable guard box 3. The PCB board 2 is fixedly mounted on the stepper motor body 1 and has solder points for connecting to the power supply. The cable guard box 3 covers the outside of the PCB board 2, serving to protect and guide the wires.

[0023] The improvement of this utility model lies in that a detection channel is opened at the position of the cable guard box 3 corresponding to the solder joint of the PCB board 2. In this embodiment, the detection channel is an integral hole 6 with rounded corners, the length of which is greater than the total length of all solder joints along their arrangement direction, and the width of which is greater than the maximum arrangement width of the solder joints.

[0024] During automated testing, the motor is conveyed to the testing station, where the testing mechanism above drives multiple detection probes 4 to move synchronously. The detection probes 4 pass through the detection channels on the cable tray 3 and directly press against the solder joints on the PCB board 2, forming an electrical connection. The testing system can then begin running the testing program. After the test is completed, the probes are lifted, and the motor is conveyed to the next process. The entire process is fast and accurate, requiring no manual wiring.

[0025] Example 2

[0026] like Figure 3 , Figure 4As shown, to meet customer needs for bottom-outlet motors, this utility model also includes a cover plate 8. When the motor needs to be modified to a bottom-outlet structure, the wire is first bent downwards, and then the cover plate 8 is installed on the cable protection box 3 to cover the detection channel. The cover plate 8 can be fixed by inserting its positioning pin 801 into the cable protection box 3. The cover plate 8 not only seals the detection channel to prevent dust and foreign objects from entering, but also works with the cable protection box 3 to clamp and fix the downwardly bent wire, forming a neat and reliable bottom-outlet structure. The front end of the positioning pin 801 has an elastic protrusion, the size of which is larger than the size of the detection channel on the cable protection box 3. During installation, pressure is applied to the cover plate 8, and the elastic protrusion at the front end of the positioning pin 801 undergoes elastic deformation under pressure, temporarily reducing its size, thus allowing it to pass smoothly through the detection channel; when the protrusion has completely passed through the detection channel, it immediately returns to its original shape. Because its size is larger than the detection channel, it forms an effective axial limit, thereby achieving automatic locking between the cover plate 8 and the cable protection box 3. The operation is simple and the connection is reliable.

[0027] Example 3

[0028] like Figure 5 As shown, in this embodiment, the detection channel consists of multiple single holes 7 corresponding one-to-one with the solder joints, specifically circular, which can also realize the function of probe detection.

[0029] Example 4

[0030] like Figure 6 As shown, this embodiment addresses the problems caused by the riveting connection between the motor cover 5 and the motor housing in the prior art. The riveting method results in gaps and breaks at the riveting points, leading to an uneven and rough surface on the housing. This can easily cause external connecting wires to get caught during assembly or use, posing a safety hazard. Furthermore, uneven force at the riveting points can cause slight deviations in the positions of internal parts, potentially generating abnormal noise during motor operation.

[0031] To address the aforementioned issues, this embodiment redesigns the connection method between the motor cover 5 and the motor housing. Specifically, the original riveting structure is eliminated, and a welding method is adopted to connect the periphery of the motor cover 5 to the motor housing. This welding process can be single-point welding or continuous patch welding, and its welding range can cover a portion or the entire circumference of the joint between the motor cover 5 and the housing, thereby achieving a robust connection around the entire perimeter.

[0032] Secondly, in this embodiment, the cable exit structure on the cable guard box 3 has also been improved. The original method of opening a hole on the side of the cable guard box 3 for cable exit has been optimized to provide an opening 9 on the top of the cable guard box 3 for cable exit. This cable exit method facilitates cable organization and guidance, further avoids contact between the cable and irregular edges, and improves the reliability and safety of the product.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor that is easy to test, characterized in that, The device includes a stepper motor body (1), a PCB board (2) disposed on the stepper motor body (1), and a cable guard box (3) adapted to the stepper motor body (1). The PCB board (2) is provided with solder joints for energizing the motor. The cable guard box (3) is provided with a detection channel corresponding to the solder joint position of the PCB board (2). The size and position of the detection channel are set to satisfy the following: the detection probe (4) can pass through the detection channel and directly contact the solder joint on the PCB board (2), thereby realizing the detection of the motor's energizing performance.

2. The easily detectable motor according to claim 1, characterized in that, The detection channel is an integral hole (6), and the coverage of the integral hole (6) can correspond to all the solder joints on the PCB board (2).

3. The easily detectable motor according to claim 2, characterized in that, The shape of the integral hole (6) is rectangular, waist-shaped, or rounded rectangle.

4. The easily detectable motor according to claim 1, characterized in that, The detection channel consists of multiple single holes (7).

5. The easily detectable motor according to claim 4, characterized in that, The shape of the single hole (7) is circular, elliptical, square, rhomboid or rounded square.

6. The easily detectable motor according to claim 1, characterized in that, It also includes a cover plate (8); the motor wire can be bent downwards in a preset direction, and the cover plate (8) is detachably installed at the opening of the detection channel corresponding to the wire protection box (3). After the cover plate (8) and the wire protection box (3) are engaged, the downwardly bent wire can be fixed, so that the motor forms a downward wire exit structure.

7. The easily detectable motor according to claim 6, characterized in that, The cover plate (8) and the cable protection box (3) are detachably connected by a plug-in connection; the cover plate (8) is provided with a positioning pin (801) for the detection channel, and the positioning pin (801) is inserted into the detection channel.

8. The easily detectable motor according to claim 1, characterized in that, A motor cover plate (5) is provided, and the periphery of the motor cover plate (5) is welded to the motor housing.

9. The easily detectable motor according to claim 1, characterized in that, The top of the cable box (3) is provided with an opening (9) for the wire to exit.

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