CN218216940U

CN218216940U - Miniature stepping motor

Info

Publication number: CN218216940U
Application number: CN202222040801.3U
Authority: CN
Inventors: 朱琨; 朱睿峰
Original assignee: Shenzhen Duohui Motor Co ltd
Current assignee: Shenzhen Duohui Motor Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-01-03
Anticipated expiration: 2032-08-03

Abstract

The utility model relates to a miniature step motor, it includes motor housing, wiring subassembly, stator, rotor and terminal box, the wiring subassembly set up in among the motor housing, the stator set up in the wiring subassembly, the rotor set up in the stator, the terminal box set up in on the motor housing, the terminal box with the connection can be dismantled to the wiring subassembly, be provided with the wiring board on the wiring subassembly, be provided with the lead wire on the wiring board, be provided with the through wires hole that supplies the lead wire to wear out on the terminal box. This application has the effect of the miniature step motor lead wire of being convenient for.

Description

Miniature stepping motor

Technical Field

The utility model relates to a driving motor especially involves a miniature step motor.

Background

The step motor is an actuating mechanism for converting electric pulse into angular displacement, and is mainly formed from stator and rotor, the stator is respectively equipped with two winding coils, and the rotor can be made into the desired rotary motion around the rotating shaft so as to form the goal of driving output to drive external device and make it rotate.

In order to change the excitation mode of the winding coil under the control of an external drive circuit, the stepping motor is provided with a wiring assembly, the wiring assembly of the existing stepping motor generally adopts an integrally formed mode, and although the mode enables the structural connection to be stable, the production process is complex, and the subsequent lead of the wiring assembly is inconvenient.

The related technology has the defect that the lead of the micro stepping motor is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to improve the inconvenient problem of miniature step motor lead wire, this application provides a miniature step motor.

The application provides a miniature step motor adopts following technical scheme:

the utility model provides a miniature step motor, includes motor housing, wiring subassembly, stator, rotor and terminal box, the wiring subassembly set up in the motor housing, the stator set up in the wiring subassembly, the rotor set up in the stator, the terminal box set up in on the motor housing, the terminal box with the connection can be dismantled to the wiring subassembly, be provided with the wiring board on the wiring subassembly, be provided with the lead wire on the wiring board, be provided with the through wires hole that supplies the lead wire to wear out on the terminal box.

Through adopting above-mentioned technical scheme, the terminal box is dismantled and is connected in the wiring subassembly, is provided with the wiring board on the wiring subassembly, and the enameled wire is connected with the wiring board in the wiring subassembly, is provided with the lead wire on the wiring board, draws the lead wire through the through wires hole on the terminal box to realize that the lead wire of wiring subassembly draws forth, the miniature step motor of being convenient for passes through the lead wire and is connected with other devices.

Optionally, the wiring assembly comprises an upper framework, a lower framework and a middle pole plate, wherein the upper framework faces towards one side of the lower framework and is provided with a through hole, the lower framework is provided with an installation block embedded with the through hole, and the middle pole plate is arranged between the upper framework and the lower framework.

Through adopting above-mentioned technical scheme, well polar plate sets up between last skeleton and lower skeleton, goes up the through-hole of skeleton and the gomphosis of the installation piece of skeleton each other down, makes well polar plate and last skeleton and lower skeleton can closely registrate, improves wiring assembly's stability.

Optionally, the lower framework is far away from one end of the upper framework is provided with a mounting seat, one end of the wiring board is connected to the mounting seat, and the other end of the wiring board is connected to the upper framework.

Through adopting above-mentioned technical scheme, mount pad and last skeleton provide installation space for the wiring board, realize installing of wiring board on wiring assembly.

Optionally, a clamping block is arranged on the mounting base, and a clamping hole matched with the clamping block in a clamping manner is arranged on the junction box.

Through adopting above-mentioned technical scheme, when the terminal box loads and unloads in the mount pad, make the terminal box take place elastic deformation through outside application of force for joint piece and joint hole joint, thereby can make terminal box and mount pad block each other and separation, so that the loading and unloading of terminal box and mount pad.

Optionally, a containing cavity for placing the wiring board is formed in the wiring box, and the threading hole is formed in the bottom wall of the containing cavity.

Through adopting above-mentioned technical scheme, when terminal box joint mount pad for the wiring board is placed in holding the intracavity, and the lead wire on the wiring board can be drawn forth through holding the through wires hole on the chamber bottom wall, thereby makes the lead wire stably be difficult for receiving external influence.

Optionally, a supporting block is arranged on the bottom wall of the accommodating cavity, and the supporting block and the wiring board are mutually abutted.

Through adopting above-mentioned technical scheme, when terminal box joint mount pad, the wiring board with hold the supporting shoe looks butt in the chamber for the wiring board is difficult for rocking stably in the holding intracavity.

Optionally, an arc plate is arranged on the junction box, and the arc plate can be embedded into the upper framework.

Through adopting above-mentioned technical scheme, when terminal box joint mount pad, the arc butt on the terminal box in last skeleton for the terminal box is difficult for producing the displacement and rocks, makes the block of wiring board and wiring subassembly be connected more stably.

Optionally, the motor housing includes a rear shell and a front cover, the front cover is connected to the rear shell in a snap-fit manner, the rear shell is in a plug-in fit with the junction box, a protruding block is arranged on the junction box, a guide surface is arranged on one side of the protruding block facing the accommodating cavity, and the guide surface abuts against the outer wall of the rear shell; the junction box is provided with an installation groove on one end face corresponding to the opening of the rear shell, and the front cover is embedded in the installation groove.

Through adopting above-mentioned technical scheme, when backshell and terminal box peg graft each other for the outer wall and the mutual butt of spigot surface of backshell, the terminal box is provided with the mounting groove, and the protecgulum is installed on the mounting groove and is mutually the butt with the terminal box, makes the protecgulum can stabilize erection joint with the terminal box.

Optionally, the front cover is provided with a mounting hole.

Through adopting above-mentioned technical scheme, be provided with the mounting hole on the protecgulum for motor body can stable installation on other equipment.

Optionally, one end of the rear shell, which is far away from the front cover, is provided with a heat dissipation hole.

Through adopting above-mentioned technical scheme, the louvre that sets up on the backshell is convenient for improve the radiating effect of motor body when operation work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the wiring box is detachably connected to the wiring assembly, a wiring board is arranged on the wiring assembly, and a lead on the wiring board is led out through a threading hole on the wiring box, so that the lead of the wiring assembly is led out, and the miniature stepping motor is conveniently connected with other devices through the lead;

2. the mounting seat and the upper framework provide mounting space for the wiring board, so that the wiring board is mounted on the wiring assembly;

3. the clamping block is clamped with the clamping hole, so that the junction box and the mounting seat are clamped and separated from each other, and the junction box and the mounting seat are convenient to assemble and disassemble.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view of a wiring assembly and junction box according to an embodiment of the present application.

Fig. 3 is an exploded view of the upper and lower frames of an embodiment of the present application.

Fig. 4 is a schematic view of an overall structure of a heat dissipation hole of a rear case according to an embodiment of the present application.

Description of reference numerals: 1. a motor housing; 11. a front cover; 111. mounting holes; 112. positioning a groove; 12. a rear housing; 121. a hook is clamped; 122. heat dissipation holes; 2. a wiring assembly; 21. mounting a framework; 211. a through hole; 22. a lower framework; 221. mounting blocks; 23. a mounting seat; 231. a clamping block; 24. a middle pole plate; 3. a wiring board; 31. a lead wire; 4. a junction box; 41. a clamping hole; 42. threading holes; 43. a support block; 44. an accommodating chamber; 45. an arc-shaped plate; 46. a bump; 461. a guide surface; 47. and (4) mounting the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a miniature stepping motor.

Referring to fig. 1 and 2, a micro stepping motor includes a motor housing 1, a wiring assembly 2, a stator (not shown), a rotor (not shown) and a terminal box 4, the wiring assembly 2 is disposed in the motor housing 1, the stator is disposed in the wiring assembly 2, the rotor is disposed in the stator, and the interconnection of the wiring assembly 2 and the stator and the rotor cooperate to enable the micro stepping motor to form an actuator capable of converting an electric pulse into an angular displacement. Terminal box 4 sets up on motor housing 1, terminal box 4 can be dismantled with wiring assembly 2 and be connected, be provided with wiring board 3 on the wiring assembly 2, the enameled wire in the wiring assembly 2 is connected with wiring board 3, be provided with lead wire 31 on the wiring board 3, be provided with the through wires hole 42 that supplies lead wire 31 to wear out on the terminal box 4 for wiring assembly 2 can be through the through wires hole 42 on terminal box 4 with lead wire 31 and draw out, thereby be convenient for miniature step motor to be connected with other devices through lead wire 31.

Referring to fig. 2 and 3, the wiring assembly 2 includes a middle pole plate 24, an upper framework 21 wound with an enameled wire, and a lower framework 22, wherein the middle pole plate 24 is arranged between the upper framework 21 and the lower framework 22, the outer shapes of the upper framework 21, the middle pole plate 24, and the lower framework 22 are all circular with the same diameter, and the axial lines of the upper framework 21, the middle pole plate 24, and the lower framework 22 are all on the same line; when the through hole 211 of the upper frame 21 and the mounting block 221 of the lower frame 22 are mutually embedded, the middle pole plate 24 is tightly sleeved between the upper frame 21 and the lower frame 22, and the stability of the wiring assembly 2 is improved by the tight connection of the upper frame 21, the lower frame 22 and the through hole 211.

Specifically, the one end that lower skeleton 22 kept away from last skeleton 21 is provided with mount pad 23, and mount pad 23 and lower skeleton 22 integrated into one piece provide the space of installation for wiring board 3 between mount pad 23 and the last skeleton 21, and the one end of wiring board 3 is connected on mount pad 23, and the other end of wiring board 3 is connected on the skeleton, has realized wiring board 3 fixed connection in wiring assembly 2.

Referring to fig. 2, the two sides of the mounting seat 23 are provided with the clamping blocks 231, the clamping blocks 231 are symmetrically arranged, the junction box 4 is provided with the clamping holes 41 matched with the clamping blocks 231 in a clamping manner, when a worker mounts and unloads the junction box 4 on and from the mounting seat 23, elastic deformation occurs on the two sides of the junction box 4 through external force application, the clamping blocks 231 and the clamping holes 41 can be mutually clamped, so that the junction box 4 and the mounting seat 23 can be mutually clamped and separated, and the junction box 4 and the mounting seat 23 can be conveniently mounted and dismounted.

Refer to fig. 2, in order to make wiring board 3 be difficult for receiving external influence, be provided with in the terminal box 4 and hold chamber 44, wiring hole 42 of terminal box 4 sets up on the diapire that holds chamber 44, when 4 joint mount pads 23 of terminal box, make wiring board 3 place and hold in chamber 44, so that the protection that makes wiring board 3 body receive terminal box 4 is difficult for receiving external colliding with, and lead wire 31 on wiring board 3 wears to locate to hold wiring hole 42 on the chamber 44 diapire, realize side lead wire 31, make the motor outward appearance cleaner and tidier, lead wire 31 is stable.

Be provided with supporting shoe 43 on the diapire that holds chamber 44, when terminal box 4 joint mount pad 23, wiring board 3 and the supporting shoe 43 looks butt that holds in chamber 44 for wiring board 3 is difficult for rocking stably in the holding intracavity. Be provided with arc 45 on terminal box 4, arc 45 sets up a terminal surface near last skeleton 21, makes skeleton 21 in the arc 45 can imbed, and when 4 joint mount pads 23 of terminal box, the difficult production displacement of terminal box 4 has been realized rocking to arc 45 butt on terminal box 4 in last skeleton 21 for wiring board 3 is connected more stably with wiring assembly 2's block.

Referring to fig. 1 and 2, the motor housing 1 includes a front cover 11 and a rear shell 12, a protrusion 46 is disposed on the terminal box 4, a guide surface 461 is disposed on one side of the protrusion 46 facing the accommodating cavity 44, when the rear shell 12 is inserted into the terminal box 4, the outer wall of the rear shell 12 and the guide surface 461 are abutted against each other, so that the terminal box 4 is stably connected to the micro stepper motor; a mounting groove 47 is formed in one end face of the junction box 4 corresponding to the opening of the rear shell 12, so that the front cover 11 can be embedded in the mounting groove 47, a positioning groove 112 is formed in the front cover 11, a hook 121 matched with the positioning groove 112 is arranged on the rear shell 12, the hook 121 is arranged at one end close to the front cover 11, and the hook 121 locks the front cover 11 through the positioning groove 112 in a buckling mode, so that the buckling connection between the front cover 11 and the rear shell 12 is more stable; through mutually supporting of protecgulum 11 and backshell 12, terminal box 4 and being connected for miniature step motor body structure is more stable.

Referring to fig. 4, in order to enable the micro stepping motor to dissipate heat and be stably installed on other devices, a mounting hole 111 is provided on the front cover 11, a heat dissipating hole 122 is provided on the rear shell 12, and the heat dissipating hole 122 is located at one end of the rear shell 12 far away from the front cover 11, so that the micro stepping motor can dissipate heat during operation.

The implementation principle of the micro stepping motor in the embodiment of the application is as follows: through the clamping fit of the clamping hole 41 on the junction box 4 and the clamping block 231 on the mounting seat 23, the junction box 4 can be detachably connected to the mounting seat 23, so that the junction box 4 and the mounting seat 23 can be conveniently assembled and disassembled; the supporting block 43 on the junction box 4 is abutted against the wiring board 3, and the arc-shaped plate 45 on the junction box 4 is embedded with the upper framework 21, so that the connection stability of the junction box 4 and the micro stepping motor is improved. Be provided with wiring board 3 on wiring assembly 2, the both ends of wiring board 3 are through being connected with mount pad 23 and last skeleton 21, realized wiring board 3 and wiring assembly 2's fixed connection, and wiring board 3 places in the chamber 44 that holds of terminal box 4, make wiring board 3 be difficult for receiving external influence, be provided with lead wire 31 on wiring board 3, be provided with the through wires hole 42 that supplies lead wire 31 to wear out on terminal box 4, thereby realize that wiring assembly 2's lead wire 31 draws forth, be convenient for miniature step motor passes through lead wire 31 and is connected with other devices.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A miniature stepping motor is characterized in that: including motor housing (1), wiring subassembly (2), stator, rotor and terminal box (4), wiring subassembly (2) set up in motor housing (1), the stator set up in wiring subassembly (2), the rotor set up in the stator, terminal box (4) set up in on motor housing (1), terminal box (4) can dismantle connect in wiring subassembly (2), be provided with wiring board (3) on wiring subassembly (2), be provided with lead wire (31) on wiring board (3), be provided with through wires hole (42) that supply lead wire (31) to wear out on terminal box (4).

2. A micro-stepper motor as defined in claim 1, wherein: wiring assembly (2) include skeleton (21), lower skeleton (22) and well polar plate (24), go up skeleton (21) orientation one side of lower skeleton (22) is provided with through-hole (211), lower skeleton (22) be provided with installation piece (221) of through-hole (211) looks gomphosis, well polar plate (24) set up in go up skeleton (21) with down between skeleton (22).

3. A micro-stepper motor as defined in claim 2, wherein: keep away from down skeleton (22) the one end of going up skeleton (21) is provided with mount pad (23), the one end of wiring board (3) connect in on mount pad (23), the other end of wiring board (3) connect in go up on skeleton (21).

4. A micro-stepper motor as defined in claim 3, wherein: the mounting seat (23) is provided with a clamping block (231), and the junction box (4) is provided with a clamping hole (41) which is matched with the clamping block (231) in a clamping manner.

5. A micro-stepper motor as defined in claim 1, wherein: the wiring board is characterized in that an accommodating cavity (44) for accommodating the wiring board (3) is formed in the wiring box (4), and the threading hole (42) is formed in the bottom wall of the accommodating cavity (44).

6. A micro-stepper motor according to claim 5, characterized in that: the bottom wall of the accommodating cavity (44) is provided with a supporting block (43), and the supporting block (43) is mutually abutted with the wiring board (3).

7. A micro-stepper motor according to claim 2, characterized in that: an arc-shaped plate (45) is arranged on the junction box (4), and the arc-shaped plate (45) can be embedded into the upper framework (21).

8. A micro-stepper motor according to claim 5, characterized in that: the motor shell (1) comprises a rear shell (12) and a front cover (11), the front cover (11) is connected to the rear shell (12) in a buckling mode, the rear shell (12) is in plug-in fit with the junction box (4), a convex block (46) is arranged on the junction box (4), a guide surface (461) is arranged on one side, facing the accommodating cavity (44), of the convex block (46), and the guide surface (461) abuts against the outer wall of the rear shell (12); an installation groove (47) is formed in one end face, corresponding to the opening of the rear shell (12), of the junction box (4), and the front cover (11) is embedded in the installation groove (47).

9. A micro-stepper motor according to claim 8, characterized in that: the front cover (11) is provided with a mounting hole (111).

10. A micro-stepper motor according to claim 8, characterized in that: one end of the rear shell (12) far away from the front cover (11) is provided with a heat dissipation hole (122).