Direct insertion type stepping motor

Abstract

The utility model relates to the field of motors, in particular to a direct insertion type stepping motor, which comprises a pin, a coil, a casing and a wire harness, the coil is arranged inside the casing, the pin is connected with the coil, a window is arranged on the casing, a female seat is clamped in the window, two rows of through holes are arranged on the female seat, a metal terminal is arranged in each through hole, and the metal terminal is connected with the wire harness. One ends of the metal terminals are connected with the pins in the casing, the wire harness is connected to the other ends of the metal terminals, and two of the metal terminals in the two rows of through ports are connected, so that all the pins can be connected in series, the wire harness can be directly connected with the pins through the metal terminals, a circuit board is omitted, and the cost of the motor is reduced.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a direct-insertion stepping motor. Background Art

[0002] The external wiring harness of a conventional stepper motor is usually directly welded to the circuit board and connected to the pins inside the motor via the circuit board. For example, 2022201642161, a stepper motor lead wire connection structure, discloses that "the connector of the motor coil is transitioned to the plug-in terminal through the wire pins and circuit board line welding, and the plug-in terminal is connected to the wiring harness to energize the motor to operate." What it actually discloses is a solution of connecting the pins on the motor via the circuit board. Utility Model Content

[0003] In view of the above situation, the purpose of the utility model is to provide a direct-insertion stepper motor which is connected in series via metal terminals and does not require a circuit board.

[0004] The direct-insertion stepper motor specifically adopts the following scheme:

[0005] It includes a pin, a coil, a casing, and a wiring harness. The coil is arranged inside the casing, and the pin is connected to the coil. The casing is provided with a window, and a female socket is clamped in the window. The female socket has two rows of through holes, and each through hole is provided with a metal terminal. One end of the metal terminal is connected to the pin in the casing, and the wiring harness is connected to the other end of the metal terminal. Two metal terminals in the two rows of through holes are connected, so that all the pins can be connected in series, and the wiring harness can be directly connected to the pins via the metal terminals, eliminating the circuit board, thereby reducing the cost of the motor.

[0006] Furthermore, elastic inner walls are provided on both sides of the through-hole of the female base, and the elastic inner walls do not contact the front side wall of the female base to form a gap. When the metal terminal is inserted from the through-hole, it squeezes the elastic inner wall and enters the through-hole. After the front end of the metal terminal passes over the elastic inner wall, it reaches the gap position and is blocked by the restored elastic inner wall to be fixed. This design makes the assembly of the metal terminal simple and labor-saving.

[0007] Furthermore, a guiding bevel groove is provided on the elastic inner wall on one side of the through-opening, and a positioning protrusion is provided on the side where the metal terminal contacts it. When the metal terminal is inserted, the cooperation between the positioning protrusion and the guiding bevel groove can firstly achieve the positioning effect to ensure the correct installation posture of the metal terminal. Secondly, during insertion, due to the effect of the guiding bevel groove, the deformation of the elastic inner wall is gradually increased, thereby making the metal terminal smoother and easier to insert.

[0008] Furthermore, a guide portion is provided on the top of the female seat, and a notch corresponding to the guide portion is provided on the window. The cooperation between the guide portion and the notch enables the female seat to be correctly inserted into the window without wasting effort during installation.

[0009] Furthermore, elastic buckles are provided on both sides of the female seat, and the elastic buckles and the window form a stopper.

[0010] Compared with the prior art, the utility model can directly connect the wiring harness to the plug pin through the metal terminal, eliminating the need for a circuit board, thereby reducing the production cost of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 2 This is an exploded view of the structure of the utility model;

[0013] Figure 3 This is a disassembled diagram of the female socket and the metal terminal of the utility model;

[0014] Figure 4 It is an assembly diagram of the female socket and the metal terminal of the utility model;

[0015] Figure 5 This is a schematic diagram of the state in which the wiring harness and the plug pin of the utility model are directly connected through the metal terminal;

[0016] The reference numerals in the figure are: pin 1, housing 2, wiring harness 3, window 4, notch 401, female socket 5, through-hole 501, elastic inner wall 502, gap 503, guide bevel 504, guide portion 505, elastic buckle 506, metal terminal 6, metal strip 601, positioning protrusion 602. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0018] Reference Figure 1-Figure 5 A direct-insert stepper motor shown includes a pin 1, a coil, a housing 2, and a wiring harness 3. The coil is arranged inside the housing 2, and the pin 1 is connected to the coil. The housing 2 is provided with a window 4, and a female socket 5 is clamped in the window 4. The female socket 5 has two rows of through holes 501, and each through hole 501 is provided with a metal terminal 6. One end of the metal terminal 6 is connected to the pin 1 in the housing 2, and the wiring harness 3 is connected to the other end of the metal terminal 6. Two metal terminals 6 in the two rows of through holes 501 are connected by a metal strip 601.

[0019] Preferably, elastic inner walls 502 are provided on both sides of the through-opening 501 of the female seat 5, and the elastic inner walls 502 do not contact the front side wall of the female seat 5 to form a gap 503. When the metal terminal 6 is inserted from the through-opening 501, it squeezes the elastic inner wall 502 and enters the through-opening 501. After passing over the elastic inner wall 502, the front end of the metal terminal 6 reaches the gap 503 position and is blocked by the restored elastic inner wall 502 to be fixed.

[0020] Preferably, the elastic inner wall 502 on one side of the through-opening 501 is provided with a guiding bevel groove 504, and the side where the metal terminal 6 contacts it is provided with a positioning protrusion 602. When the metal terminal 6 is inserted, the cooperation between the positioning protrusion 602 and the guiding bevel groove 504 can firstly achieve the positioning effect, thereby ensuring that the metal terminal 6 is installed in the correct posture. Secondly, during insertion, due to the effect of the guiding bevel groove 504, the deformation of the elastic inner wall 502 is gradually increased, thereby making the metal terminal 6 smoother and easier to insert.

[0021] Preferably, a guiding portion 505 is provided on the top of the female seat 5 , and a notch 401 corresponding to the guiding portion 505 is provided on the window 4 .

[0022] Preferably, elastic buckles 506 are provided on both sides of the mother seat 5, and the mother seat 5 is made of elastic material, such as plastic or rubber. When the mother seat 5 is inserted into the window 4, the elastic buckles 506 are squeezed and deformed. After passing over the window 4, the elastic buckles 506 and the window 4 form a stopper, thereby fixing the mother seat 5 on the window 4.

[0023] Finally, it should be noted that 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-insertion stepper motor, characterized in that: The invention comprises a plug pin (1), a coil, a housing (2), and a wiring harness (3), wherein the coil is arranged inside the housing (2), and the plug pin (1) is connected to the coil, the housing (2) is provided with a window (4), a female socket (5) is clamped in the window (4), the female socket (5) is provided with two rows of through holes (501), each through hole (501) is provided with a metal terminal (6), one end of the metal terminal (6) is connected to the plug pin (1) in the housing (2), the wiring harness (3) is connected to the other end of the metal terminal (6), and two metal terminals (6) in the two rows of through holes (501) are connected.

2. A direct-insertion stepper motor according to claim 1, characterized in that: The through-opening (501) of the female seat (5) is provided with elastic inner walls (502) on both sides, and a gap (503) is formed between the elastic inner wall (502) and the front side wall of the female seat (5). When the metal terminal (6) is inserted from the through-opening (501), it squeezes the elastic inner wall (502) and enters the through-opening (501). After passing over the elastic inner wall (502), the front end of the metal terminal (6) reaches the gap (503) position and is blocked by the restored elastic inner wall (502) to be fixed.

3. A direct-insertion stepper motor according to claim 2, characterized in that: The elastic inner wall (502) on one side of the through hole (501) is provided with a guiding inclined groove (504), and the side where the metal terminal (6) contacts with the through hole is provided with a positioning protrusion (602).

4. A direct-insertion stepper motor according to claim 3, characterized in that: A guiding portion (505) is provided on the top of the female seat (5), and a notch (401) corresponding to the guiding portion (505) is provided on the window (4).

5. A direct-insertion stepper motor according to claim 4, characterized in that: Elastic buckles (506) are provided on both sides of the female seat (5), and the elastic buckles (506) and the window (4) form a stop fit.

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