Stepping motor with drive control

Abstract

The utility model discloses a stepping motor with drive control, which comprises a motor body and an integrated wire protection box, the motor body comprises a shell and a top cover, the shell is also provided with an open slot, the integrated wire protection box is fixed on the motor body, a drive control unit is arranged in the integrated wire protection box, and the drive control unit is fixed on the motor body. The open slot is communicated with the integrated wire protection box, a plurality of phase wire needles are fixed on the motor body, and the phase wire needles are led out from the open slot to be connected with a driving control unit in the integrated wire protection box. By arranging the driving control unit in the integrated wire protection box, on one hand, the integrated wire protection box plays a role in connecting an external power supply and a bridge of the motor body, and the working requirement of the motor body can be met without finding a matched driving control unit; and on the other hand, the integrated wire protection box is fixed on the open slot of the motor body through the connecting part, and the extension position is further arranged to completely wrap the open slot, so that better protection and anti-interference effects on the motor body are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a stepping motor with drive control. Background Art

[0002] A stepper motor is a micro motor that converts electrical pulse signals into angular displacement to control the rotation of the rotor. A stepper motor cannot be directly connected to a DC or AC power supply and must use a dedicated driver. The driver provides the current and voltage required by the stepper motor according to the input control signal, thereby controlling the speed and torque of the stepper motor.

[0003] Traditional motors need to be matched with controllers. If the controller is not suitable for the motor, the motor will vibrate and make a lot of noise, which will also affect the motor's service life. If a controller is developed for the motor alone, not only will the debugging cycle be long, but the cost will also be very high.

[0004] For example, Chinese utility model patent CN215186396U proposes a stepping motor, comprising a rear end cover (2), a front end cover (3), a stator assembly (5), a motor fixing screw (6), a lead wire (8), a rotor assembly (9), a front frame (10) and a rear frame (11); the motor fixing screw (6) passes through the front end cover (3), the front frame (10) and the stator assembly (5) in sequence and is fixed to a first motor screw mounting hole (16) on the rear end cover (2); the lead wire (8) is led out from the rear end cover (2); and a first mounting and fixing hole (7) for the motor is provided in the motor body. Another example is Chinese utility model patent CN219304585U, which discloses a stepper motor, including: a mounting plate; one side of the mounting plate is connected to the front cover, and the front cover is connected to the rear cover by rivet points; the center of the front cover bulges outward to form a first bearing chamber, a through hole is provided at the center of the circle, so that the shaft extends outward through the through hole, and the rear cover is provided with a circular ring structure bulging inward, and a second bearing chamber is formed in the circular part inside the circular ring structure. The device stretches the front cover of the stepper motor, replaces the traditional three-section spliced ​​housing, and directly connects and fixes the front cover and the rear cover by rivet points, and does not need to install the stator core on the front and rear covers by bolts, which reduces the impact on the working magnetic circuit of the motor.

[0005] The stepper motors of the above two patents need to be matched with a drive controller, which increases the cost of the user to develop the controller, is time-consuming and labor-intensive, and is very inconvenient. Utility Model Content

[0006] Based on this, it is necessary to provide a stepper motor with drive control to address the above-mentioned technical problems. An integrated wire protection box is set in conjunction with the motor body. A debugged drive controller is directly installed inside the wire protection box. After purchasing the product, users can use it without configuring the corresponding drive controller separately, which is very convenient.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A stepper motor with drive control comprises: a motor body and an integrated wire protection box, wherein the motor body comprises an outer shell and a top cover, the outer shell is further provided with an opening slot, the integrated wire protection box is fixed on the motor body and a drive control unit is arranged inside the integrated wire protection box, the opening slot is communicated with the integrated wire protection box, a plurality of phase line pins are fixed on the motor body, the phase line pins are led out from the opening slot and connected to the drive control unit inside the integrated wire protection box.

[0009] Furthermore, a grounding structure is provided in the motor body, and the grounding structure is led out from the motor body and inserted into an integrated wire protection box to be connected with the drive control unit.

[0010] Furthermore, a gear plate is provided inside the motor body, and the grounding structure is a grounding pin integrally formed with the gear plate.

[0011] Furthermore, the integrated wire protection box includes a wire protection box body and a connecting portion, the integrated wire protection box is fixed to the opening groove via the connecting portion, and a drive control unit is provided inside the wire protection box body.

[0012] Furthermore, a control unit and a plug-in unit are adjacently disposed inside the wire protection box body, and the drive control unit is a drive control circuit board disposed inside the control unit.

[0013] Furthermore, the connecting portion is provided with a through hole corresponding to the opening slot, the drive control circuit board is provided with a connecting hole, and the phase line pin and the grounding pin are led out from the opening slot and inserted into the connecting hole through the through hole.

[0014] Furthermore, a plurality of pins are provided in the body of the wire protection box, one end of the pins is connected to the drive control circuit board, and the other end extends toward the plug-in portion, and the external power supply is inserted into the plug-in portion and connected to the pins.

[0015] Furthermore, the wire protection box body is also provided with a protective cover, which covers the control part and the plug-in part.

[0016] Furthermore, a buckle and a clearance position adapted to the shape of the opening groove are provided on a side of the connecting portion opposite to the motor body.

[0017] Furthermore, the left and right sides of the connecting portion are provided with extension positions, the extension positions on the left and right sides completely wrap the opening groove, and a plurality of core-pulling holes are opened on the extension positions.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a stepper motor with drive control, by arranging a drive control unit inside the integrated wire protection box, and the phase line pins led out of the motor body can be directly inserted into the integrated wire protection box and connected with the drive control unit. On the one hand, the integrated wire protection box acts as a bridge connecting the external power supply and the motor body, and there is no need to find a matching drive control unit outside to meet the working requirements of the motor body. On the other hand, the integrated wire protection box is fixed to the opening slot of the motor body through a connecting part, and an extension position is further provided to completely wrap the opening slot, thereby providing better protection and anti-interference for the motor body.

[0020] The stepper motor with drive control provided by the utility model also forms a complete drive circuit by arranging and leading out a grounding structure on the motor body, and the grounding structure is inserted into the drive control unit inside the integrated wire protection box through an open slot, thereby preventing interference to other electronic devices during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The structure diagram of the stepping motor with drive control provided by the utility model Figure 1 ;

[0022] Figure 2 The structure diagram of the stepping motor with drive control provided by the utility model Figure 2 ;

[0023] Figure 3 Schematic diagram of the internal structure of the motor body of the stepper motor with drive control provided by the utility model Figure 1 ;

[0024] Figure 4 Schematic diagram of the internal structure of the motor body of the stepper motor with drive control provided by the utility model Figure 2 ;

[0025] Figure 5 The internal structure of the integrated wire protection box with drive control provided by the utility model is schematically shown. Figure 1 ;

[0026] Figure 6 The internal structure of the integrated wire protection box with drive control provided by the utility model is schematically shown. Figure 2 .

[0027] The markings in the figure are as follows:

[0028] Motor body 1, housing 11, top cover 12, stator 13, gear assembly 14, gear plate 15, ground pin 151, frame assembly 16, opening slot 17, phase line pin 18;

[0029] Integrated wire protection box 2, wire protection box body 21, control part 211, plug-in part 212, protective cover 213, connecting part 22, upper avoidance position 221, lower avoidance position 222, buckle 223, extension position 224, core pulling hole 225, through hole 226, drive control circuit board 23, connecting hole 231, and plug pin 232. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] As described in the background art, the existing stepper motor and the drive control unit are separate and need to be matched separately, which is inconvenient for customers to use.

[0034] In order to solve this technical problem, the utility model provides a stepping motor with drive control, which does not need to develop a corresponding drive control unit separately.

[0035] Specifically, please refer to Figure 1-6 A stepper motor with drive control comprises: a motor body 1 and an integrated wire protection box 2, the motor body 1 comprises a shell 11 and a top cover 12, the shell 11 is also provided with an opening slot 17, and is characterized in that the integrated wire protection box 2 is fixed on the motor body 1 and a drive control unit is provided inside the integrated wire protection box 2, the opening slot 17 is communicated with the integrated wire protection box 2, a plurality of phase line pins 18 are fixed on the motor body 1, and the phase line pins 18 are led out from the opening slot 17 and connected to the drive control unit inside the integrated wire protection box 2.

[0036] The stepper motor with drive control provided by the utility model arranges the debugged drive control unit inside the integrated wire protection box 2, and correspondingly opens a through hole 226 on the connecting portion 22 of the integrated wire protection box 2, so that the phase pin 18 and the grounding pin 151 can directly enter the interior of the integrated wire protection box 2 and connect with the drive control unit. The external power supply only needs to be inserted into the plug-in portion 212 and connected with the pin 232 to form a complete control circuit. On the one hand, it greatly saves the user's time and cost, and on the other hand, it avoids the problem of damage to product quality caused by the inappropriateness of the driving control unit matched separately.

[0037] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] Example 1

[0041] Please refer to Figure 1-6 A stepper motor with drive control includes a motor body 1 and an integrated wire protection box 2, wherein the integrated wire protection box 2 is fixed on the motor body 1 and a drive control unit is provided inside the integrated wire protection box 2, one side of the integrated wire protection box 2 is connected to an external power supply, and the drive control unit is integrated with the motor body 1 by setting the integrated wire protection box 2, without the need to develop or match a corresponding drive control unit for the motor body 1.

[0042] Further, such as Figure 3 and 4As shown, the motor body 1 includes a shell 11 and a top cover 12, and a stator 13, a gear assembly 14, a skeleton assembly 16 and a rotor (not shown in the figure) are sequentially arranged in a cylindrical cavity formed by the shell 11 and the top cover 12.

[0043] Furthermore, the outer shell 11 is also provided with an opening groove 17, and the opening groove 17 is connected with the integrated wire protection box 2. A plurality of phase line pins 18 are fixed on the winding coil of the skeleton component 16. The phase line pins 18 are led out from the opening groove 17 and connected to the driving control unit inside the integrated wire protection box 2. Thus, the motor body 1 and the integrated wire protection box 2 are electrically connected.

[0044] Furthermore, a grounding structure is provided in the motor body 1, and the grounding structure is led out from the motor body 1 and inserted into the integrated wire protection box 2 to be connected to the drive control unit. On the one hand, the safety of the motor is ensured and the reliability of the motor operation is improved; on the other hand, the electromagnetic radiation generated during the operation of the motor is reduced to avoid interference with other electronic devices.

[0045] Furthermore, a gear plate 15 supporting the gear assembly 14 is also provided inside the motor body 1, and the grounding structure is a grounding pin 151 integrally formed with the gear plate 15, and the grounding pin 151 extends from the gear plate 15 in the direction of the opening slot 17, and the grounding pin 151 is placed in the middle of the plurality of phase line pins 18 and passes through the opening slot 17 to be connected to the drive control unit inside the integrated wiring box 2.

[0046] Further, such as Figure 5 and 6 As shown, the integrated wire protection box 2 includes a wire protection box body 21 and a connecting portion 22. The integrated wire protection box 2 is fixed to the motor body 1 through the connecting portion 22. A drive control unit is provided inside the wire protection box body 21. The phase line pin 18 and the grounding pin 151 are led out from the motor body 1 and enter the wire protection box body 21 to connect with the drive control unit.

[0047] Furthermore, the connecting portion 22 is provided with a fixing structure and a clearance position adapted to the opening slot 17 on one side opposite to the motor body 1. Specifically, the clearance position includes an upper clearance position 221 and a lower clearance position 222, wherein the shape of the upper clearance position 221 is adapted to the gear assembly 14, and the shape of the lower clearance position 222 is adapted to the skeleton assembly 16. Furthermore, the fixing structure is a buckle 223 provided on the left and right sides thereof, and the integrated wire protection box 2 is fixed to the opening slot 17 by the buckle 223, and the buckle 223 is preferably a bent buckle, and may also be other conventional fixing methods.

[0048] Furthermore, the connecting portion 22 is also provided with an extension position 224 extending in an arc shape to the left and right sides to further wrap the opening groove 17. The extension position 224 and the buckle 223 are arranged in two adjacent layers above and below. When the buckle 223 is buckled into the opening groove 17, the edges of the extension positions 224 on the left and right sides abut against the outer shell 11, and the connecting portion 22 can completely wrap the opening groove 17, thereby better protecting the motor body 1 and preventing the internal structure from being disturbed.

[0049] Furthermore, the connecting portion 22 is also provided with a core pulling structure, so that the mold can be demoulded normally, ensuring that the connecting portion 22 is not easy to wear and break, and making its arc structure more stable. Specifically, the core pulling structure is a plurality of core pulling holes 225 provided on the extension positions 224 on the left and right sides of the connecting portion 22. In this embodiment, the core pulling holes 225 are provided on the four corners of the extension positions 224 on the left and right sides.

[0050] Furthermore, the connecting portion 22 is also provided with a through hole 226, and the opening groove 17 is connected with the integrated wire protection box 2 through the through hole 226. When the wire protection box body 21 is fixed on the motor body 1, the phase pin 18 and the grounding pin 151 are led out from the opening groove 17 and then pass through the through hole 226 to be connected to the drive control unit inside the wire protection box body 21.

[0051] Furthermore, a control unit 211 and a plug-in unit 212 are adjacent to the wire protection box body 21. The drive control unit is a drive control circuit board 23 arranged in the control unit 211. The drive control circuit board 23 is provided with a control chip, a MOS field effect transistor and a linear power supply chip, forming a complete drive control unit to control the motor body 1.

[0052] Furthermore, a connecting hole 231 is provided on the drive control circuit board 23. When the drive control circuit board 23 is installed on the wire protection box body 21, the connecting hole 231 corresponds exactly to the through hole 226 and the opening slot 17. The phase line pin 18 and the grounding pin 151 are led out from the opening slot 17 and inserted into the connecting hole 231 of the drive control circuit board 23 through the through hole 226 to achieve electrical connection.

[0053] Furthermore, a plurality of pins 232 are provided in the wiring protection box body 21, one end of the pin 232 is connected to the drive control circuit board 23, and the other end extends toward the plug-in portion 212. An external power supply can be inserted into the plug-in portion 212 and connected to the pin 232, thereby realizing the connection between the external power supply and the drive control unit, and sending instructions to the drive control unit inside the integrated wiring protection box 2. The drive control unit is integrated with the motor, and there is no need to design a controller for a single motor, thereby saving costs and reducing development time.

[0054] Furthermore, the plug pin 232 is preferably a vehicle-standard plug pin with a large insertion and extraction force, so that the connection is more stable.

[0055] Furthermore, the wire protection box body 21 is also provided with a protective cover 213, and the protective cover 213 covers the control part 211 and the plug-in part 212 to prevent the driving control circuit board 23 from receiving external interference.

[0056] When in use, the external power supply is inserted into the plug-in portion 212 to achieve electrical connection with the drive control circuit board 23 to transmit the control signal. The drive control unit and the motor are integrated, which is very convenient and the user does not need to configure the drive control unit separately.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A stepper motor with drive control, comprising: A motor body (1) and an integrated wire protection box (2), wherein the motor body (1) comprises an outer shell (11) and a top cover (12), wherein the outer shell (11) is further provided with an opening slot (17), and is characterized in that the integrated wire protection box (2) is fixed on the motor body (1) and a drive control unit is provided inside the integrated wire protection box, wherein the opening slot (17) is connected to the integrated wire protection box (2), and a plurality of phase line pins (18) are fixed on the motor body (1), wherein the phase line pins (18) are led out from the opening slot (17) and connected to the drive control unit inside the integrated wire protection box (2).

2. The stepping motor with drive control according to claim 1, characterized in that: A grounding structure is provided in the motor body (1), and the grounding structure is led out from the motor body (1) and inserted into the integrated wire protection box (2) to be connected to the drive control unit.

3. The stepping motor with drive control according to claim 2, characterized in that: A gear plate (15) is provided inside the motor body (1), and the grounding structure is a grounding pin (151) formed integrally with the gear plate (15).

4. The stepping motor with drive control according to claim 1, characterized in that: The integrated wire protection box (2) comprises a wire protection box body (21) and a connecting portion (22); the integrated wire protection box (2) is fixed to the opening groove (17) via the connecting portion (22); and a drive control unit is provided inside the wire protection box body (21).

5. The stepping motor with drive control according to claim 4, characterized in that: A control unit (211) and a plug-in unit (212) are adjacently arranged inside the wire protection box body (21), and the drive control unit is a drive control circuit board (23) arranged inside the control unit (211).

6. The stepping motor with drive control according to claim 5, characterized in that: The connecting portion (22) is provided with a through hole (226) corresponding to the opening slot (17), the drive control circuit board (23) is provided with a connecting hole (231), and the phase line pin (18) and the grounding pin (151) are led out from the opening slot (17) and then inserted into the connecting hole (231) through the through hole (226).

7. The stepping motor with drive control according to claim 5, characterized in that: A plurality of plug pins (232) are arranged in the wire protection box body (21), one end of the plug pin (232) is connected to the drive control circuit board (23), and the other end extends toward the plug-in portion (212); an external power source is inserted into the plug-in portion (212) and connected to the plug pin (232).

8. The stepping motor with drive control according to claim 4, characterized in that: The wire protection box body (21) is also provided with a protective cover (213), and the protective cover (213) covers the control part (211) and the plug-in part (212).

9. The stepping motor with drive control according to claim 4, characterized in that: A buckle (223) and a clearance position adapted to the shape of the opening groove (17) are provided on a side of the connecting portion (22) opposite to the motor body (1).

10. The stepping motor with drive control according to claim 9, characterized in that: The connecting portion (22) is further provided with extension positions (224) on the left and right sides. The extension positions (224) on the left and right sides completely wrap the opening groove (17), and a plurality of core-pulling holes (225) are provided on the extension positions (224).

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