Integrated stepping motor

Abstract

According to the integrated stepping motor provided by the utility model, the through holes and the row insertion holes are designed in the rear end cover and the heat insulation plate of the stepping motor body, the driving plate is positioned in the heat insulation plate through the two positioning columns, and then the driving plate is electrically connected with the stator coil lead PCBA plate through the row pins, so that welding assembly is facilitated, and the reject ratio of wire welding assembly is reduced; the two positioning columns can well position the position of the driving plate, enough safety gaps are reserved between the four edges of the driving plate and the four edges of the rear cover, and the problem that the driving plate and the rear cover are poor in electric conduction after assembly can be effectively solved. Besides, the center of the bottom face of the heat insulation plate is provided with a corresponding positioning step and a screw hole positioning step for two-point positioning, assembling positioning is facilitated, the heat insulation plate is prevented from rotating, when two positioning columns are matched for assembling, concentricity of a magnet on the top of the rotating shaft and an encoder chip at the bottom of the driving plate can be effectively guaranteed, special alignment is not needed during assembling, and assembling is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of stepping motors, in particular to an integrated stepping motor. Background Art

[0002] Existing integrated stepper motors typically use wires to electrically connect the driver board and the stepper motor coil. This requires soldering the wires together, which creates limited space and prevents excessive wire reserving. This makes assembly inconvenient and prone to problems like poor soldering. Therefore, further improvements are needed. Utility Model Content

[0003] In view of this, the utility model provides an integrated stepping motor, and aims to solve the problems of the existing technology by designing a pin header and a positioning column.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An integrated stepper motor comprises a stepper motor body, wherein the upper side of the rear end cover of the stepper motor body is provided with a row of sockets that penetrate the rear end cover and face the stator coil lead PCBA board, a heat insulation board is fixedly provided on the upper side of the rear end cover of the stepper motor body, the heat insulation board is provided with through holes corresponding to the position of the row of sockets, a drive board is fixedly provided in the heat insulation board through two positioning columns, a pin header is welded and electrically connected to the stator coil lead PCBA board of the stepper motor body, and the pin header passes through the row of sockets and the through holes in sequence, and the upper end of the pin header passes through the corresponding hole position of the drive board and is welded and electrically connected to the drive board on the upper side, and a rear cover is provided on the upper side of the heat insulation board to seal the heat insulation board.

[0006] Furthermore, a positioning step is provided at the center of the bottom surface of the heat insulation board, which is correspondingly embedded in the central axis hole of the rear end cover of the stepper motor body, and a screw hole positioning step is provided on one side of the bottom surface of the heat insulation board, which is correspondingly embedded in the screw hole of the rear end cover of the stepper motor body.

[0007] Furthermore, a wiring strip is provided on the heat insulation board and is electrically connected to the driving board.

[0008] Furthermore, the driver board is integrated with a Type-C interface extending out of a heat insulation board.

[0009] Furthermore, the heat insulation plate and the rear cover are fixed to the rear end cover of the stepper motor body by screws.

[0010] The beneficial effects of the present invention are:

[0011] The utility model is designed with through holes and sockets in the rear end cover and heat shield of the stepper motor body. The driver board is positioned by two positioning posts in the heat shield, and then the driver board is electrically connected to the stator coil lead PCBA board through the pin header, which facilitates welding and assembly and reduces the defective rate of wire welding and assembly. The two positioning posts can well locate the position of the driver board and ensure that there is sufficient safety gap between the four sides of the driver board and the four sides of the rear cover, which can effectively avoid the problem of poor electrical conductivity between the driver board and the rear cover after assembly.

[0012] In addition, two positioning points, a corresponding positioning step and a screw hole positioning step, are set at the center of the bottom surface of the heat insulation board to facilitate assembly positioning and prevent the heat insulation board from rotating. When assembled with two positioning columns, it can effectively ensure the concentricity of the magnet on the top of the shaft and the encoder chip at the bottom of the driver board. Special alignment is no longer required during assembly, making assembly convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the integrated stepping motor in the present utility model;

[0014] Figure 2 This is a schematic diagram of the disassembly of the integrated stepping motor in the present utility model;

[0015] Figure 3 This is a schematic diagram of the heat insulation board in the utility model.

[0016] The following are the descriptions of the reference numerals:

[0017] 1 is the stepper motor body, 101 is the rear end cover, 102 is the stator coil lead PCBA board, 103 is the socket strip, 2 is the heat insulation board, 201 is the through hole, 202 is the positioning column, 3 is the driver board, 4 is the pin header, 5 is the rear cover, 104 is the shaft hole, 105 is the screw hole, 203 is the positioning step, 204 is the screw hole positioning step, 6 is the wiring strip, 7 is the Type-C interface, and 8 is the screw. DETAILED DESCRIPTION

[0018] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0019] The following describes the embodiments of the present disclosure through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0020] In order to facilitate the assembly of the integrated stepper motor, the specific contents of the present invention are as follows.

[0021] Combine Figure 1 、 Figure 2 and Figure 3 As shown, the embodiment of the present invention is an integrated stepper motor, including a stepper motor body 1. Importantly, the upper side of the rear end cover 101 of the stepper motor body 1 is provided with a row of sockets 103 that penetrate the rear end cover 101 and face the stator coil lead PCBA board 102. A heat insulation board 2 is fixedly provided on the upper side of the rear end cover 101 of the stepper motor body 1. The heat insulation board 2 is provided with a through hole 201 at the position corresponding to the row of sockets 103. A drive board 3 is fixedly provided in the heat insulation board 2 through two positioning columns 202. A pin header 4 that passes through the row of sockets 103 and the through hole 201 in sequence is welded and electrically connected on the PCBA board 102 of the stator coil lead of the stepper motor body 1. The upper end of the pin header 4 passes through the corresponding hole position of the drive board 3 and is welded and electrically connected to the drive board 3 on the upper side. A rear cover 5 is provided on the upper side of the heat insulation board 2 to seal the heat insulation board 2 accordingly.

[0022] In this design, through holes 201 and sockets 103 are designed in the rear end cover 101 of the stepper motor body 1 and the heat insulation plate 2. The driver board 3 is positioned in the heat insulation plate 2 by two positioning posts 202, and then the driver board 3 is electrically connected to the stator coil lead PCBA board 102 through the pin header 4, which facilitates welding and assembly and reduces the defective rate of wire welding and assembly; the two positioning posts 202 can well position the position of the driver board 3, and maintain sufficient safety gaps between the four sides of the driver board 3 and the four sides of the rear cover 5, which can effectively avoid the problem of poor electrical conductivity between the driver board 3 and the rear cover 5 after assembly.

[0023] Preferably, a positioning step 203 is provided at the center of the bottom surface of the heat insulation plate 2, which corresponds to the central axis hole 104 embedded in the rear end cover 101 of the stepper motor body 1, and a screw hole positioning step 204 is provided on one side of the bottom surface of the heat insulation plate 2, which corresponds to the screw hole 105 embedded in the rear end cover 101 of the stepper motor body 1. The positioning step 203 and the screw hole positioning step 204 are positioned at two points, which facilitates assembly and positioning and prevents the heat insulation plate 2 from rotating. When assembled with the two positioning columns 202, the concentricity of the magnet at the top of the rotating shaft and the encoder chip at the bottom of the drive plate 3 can be effectively guaranteed. Special alignment is no longer required during assembly, which facilitates assembly.

[0024] Preferably, a wiring strip 6 is provided on the heat insulation board 2 and is electrically connected to the driving board 3 for connecting to an external system.

[0025] Preferably, the driver board 3 is integrated with a Type-C interface 7 extending out of the heat insulation board 2, which can directly output motor data.

[0026] Preferably, the heat shield 2 and the rear cover 5 are fixed to the rear end cover 101 of the stepper motor body 1 by screws 8, so as to facilitate assembly and subsequent maintenance.

[0027] The above is only for explaining 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 replacement, improvement, etc. made within the spirit and principles of the present invention without creative work should be included in the scope of protection of the present invention.

Claims

1. An integrated stepper motor, comprising a stepper motor body, characterized in that: The upper side of the rear end cover of the stepper motor body is provided with a row of sockets that penetrate the rear end cover and face the stator coil lead PCBA board. A heat insulation board is fixedly provided on the upper side of the rear end cover of the stepper motor body. The heat insulation board is provided with through holes corresponding to the position of the row of sockets. A drive board is fixedly provided in the heat insulation board through two positioning columns. Pins that pass through the row of sockets and through holes in sequence are welded and electrically connected on the stator coil lead PCBA board of the stepper motor body. The upper ends of the pins pass through the corresponding holes of the drive board and are welded and electrically connected to the drive board on the upper side. A rear cover is provided on the upper side of the heat insulation board to seal the heat insulation board.

2. The integrated stepping motor according to claim 1, characterized in that: A positioning step is provided at the center of the bottom surface of the heat insulation board, which is correspondingly embedded in the central axis hole of the rear end cover of the stepper motor body. A screw hole positioning step is provided on one side of the bottom surface of the heat insulation board, which is correspondingly embedded in the screw hole of the rear end cover of the stepper motor body.

3. The integrated stepping motor according to claim 1, characterized in that: The heat insulation board is provided with a wiring strip electrically connected to the driving board.

4. The integrated stepping motor according to claim 1, characterized in that: The driver board is integrated with a Type-C interface extending out of a heat insulation board.

5. The integrated stepping motor according to claim 1, wherein: The heat insulation plate and the rear cover are fixed on the rear end cover of the stepping motor body by screws.

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