Claw pole type intelligent motor with built-in driving circuit board and assembling and welding method

Abstract

The invention discloses a claw pole type intelligent motor with a built-in driving circuit board and an assembling and welding method. The claw pole type intelligent motor comprises a coil winding and the driving circuit board assembled on the side face of the coil winding. A winding framework is arranged on the side face of the coil winding, a plurality of supporting columns and a plurality of pins are arranged on the surface of the winding framework, and the pins are connected with terminals of the coil winding. A plurality of welding holes are formed in the driving circuit board in a penetrating manner, one surface is an assembling surface, and the other surface is a welding surface; sMD elements are assembled on the assembling surface, and a plurality of wiring contacts are arranged on the welding surface; the pins are correspondingly inserted into the welding holes, the pins and the welding holes are welded and fixed on the welding surface, and the wiring contact and the wire end of the wire harness assembly are welded and fixed. Therefore, patch elements of the driving circuit board are arranged on the assembly surface, the assembly surface faces the winding framework, the pins and the welding holes as well as the wiring contacts and the wire ends are welded only on the welding surface at the same time, the patch elements cannot be damaged, a protective coating can be pre-sprayed on the driving circuit board, the working procedure is simplified, the working time is remarkably shortened, and the yield is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of motor structure technology, and in particular to a claw-pole intelligent motor with a built-in drive circuit board and a welding method thereof. Background Technology

[0002] Claw-pole motors are widely used in various household appliances, security facilities, and other electrical control equipment, and can operate based on simple external commands such as PWM pulses. Therefore, existing claw-pole intelligent motors equipped with driver circuit boards have pre-programmed drivers on the circuit boards. This allows users to achieve precise control of the claw-pole intelligent motor based on the preset ports and drive commands in the driver program, without the need to design separate driver programs for the control and controlled devices, significantly improving convenience.

[0003] During the production process, the wire harness is first threaded into the cable tray, then soldered to the drive circuit board to form a wire harness assembly. Next, the drive circuit board is inserted into the winding frame of the claw-pole intelligent motor, and the pins of the claw-pole intelligent motor are soldered to the drive circuit board. However, during the soldering of the pins to the drive circuit board, the surface-mount components on the drive circuit board are on the same side as the area being soldered. Since both the claw-pole intelligent motor and the drive circuit board are relatively small, the soldering process easily damages unrelated surface-mount components, resulting in a high defect rate and high rework rate.

[0004] In addition, the solder joints of the wiring harness on the drive circuit board need to be coated with conformal coating for protection. Therefore, after the soldering is completed, it is necessary to wait for the conformal coating to dry before proceeding with the wire protection box and other processes. This makes the overall process too time-consuming and requires space for drying. Summary of the Invention

[0005] The first aspect of this embodiment discloses a claw-pole intelligent motor with a built-in drive circuit board, specifically including: Coil winding 1, and drive circuit board 2 mounted on the side of coil winding 1; The side of the coil winding 1 is provided with a winding frame 11, and the surface of the winding frame 11 is provided with a plurality of support posts T and a plurality of pins Y, the pins Y being connected to the terminals of the coil winding 1. The drive circuit board 2 has several soldering holes 22 through it, with one side being the assembly surface A and the other side being the soldering surface B; The assembly surface A is equipped with patch element 21, and the welding surface B is provided with several wiring contacts 23; A plurality of the pins Y are inserted into a plurality of the solder holes 22, and the pins Y are soldered and fixed to the solder holes 22 on the solder surface B. A plurality of the wiring contacts 23 are soldered and fixed to the wire ends of the wire harness assembly on the solder surface B.

[0006] As an optional implementation, the drive circuit board 2 is pre-coated with a protective coating.

[0007] As an optional implementation, the mounting surface A faces the winding frame 11 of the coil winding 1.

[0008] As an optional implementation, the support post T positions and supports the mounting surface A in conjunction with the pin Y inserted into the welding hole 22.

[0009] As an alternative implementation, the patch element 21 on the mounting surface A does not touch the support post T or the pin Y.

[0010] As an optional implementation, the winding skeleton 11 is provided with a wiring groove 111 on the top, a buckle 112 on one side, and a boss 113 on the other side.

[0011] As an optional implementation, the wire harness assembly includes a plurality of wires, and the plurality of wires are covered with a wire sheath. The cable guard box is used to be fastened to the outside of the winding frame 11 based on the buckle 112.

[0012] As an optional implementation, the cable protection box provides shielding and protection for the winding frame 11, the drive circuit board 2, and the pin Y; The wires of the wiring harness assembly are laid in the wiring groove 111.

[0013] A second aspect of this embodiment discloses a welding method, the welding method comprising: Fixed coil winding; A drive circuit board is placed on the winding frame of the coil winding, so that the pins of the coil winding are inserted into the solder holes of the drive circuit board. The pins and solder holes are soldered and fixed on the soldering surface of the drive circuit board, and the wiring contacts on the soldering surface are soldered and fixed to the wire ends of the wire harness assembly.

[0014] As an optional implementation, the drive circuit board is pre-coated with a protective coating; The other side of the welding surface of the drive circuit board is the assembly surface, on which surface mount components are assembled. The surface of the welding surface is an insulating substrate.

[0015] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, the surface mount components of the drive circuit board are disposed on the mounting surface, which faces the winding skeleton. Soldering operations are performed on the pins and solder holes, wiring contacts and wire ends only on the other side of the soldering surface. This will not damage the surface mount components. Furthermore, the drive circuit board can be pre-sprayed with a protective coating after the previous surface mount process is completed. The process is simplified, the working time is significantly shortened, and the yield is greatly improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a claw-pole intelligent motor with a built-in drive circuit board disclosed in this embodiment; Figure 2 This is a side view of a claw-pole intelligent motor with a built-in drive circuit board disclosed in this embodiment. Figure 3 This is a partial structural schematic diagram of a claw-pole intelligent motor with a built-in drive circuit board disclosed in this embodiment; Figure 4 This is a three-dimensional structural diagram of the drive circuit board in a claw-pole intelligent motor with a built-in drive circuit board disclosed in this embodiment. Figure 5 This is another three-dimensional structural schematic diagram of the drive circuit board in a claw pole intelligent motor with a built-in drive circuit board disclosed in this embodiment; Figure 6 This is a schematic diagram of the workflow of a welding method disclosed in this embodiment.

[0018] The specific structural component comparison table is as follows: Detailed Implementation

[0019] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figures 1-5 The first aspect of this embodiment discloses a claw-pole intelligent motor with a built-in drive circuit board, comprising: Coil winding 1, and drive circuit board 2 mounted on the side of coil winding 1; A winding frame 11 is provided on the side of the coil winding 1. Several support posts T and several pins Y are provided on the surface of the winding frame 11. The pins Y are connected to the terminals of the coil winding 1. The drive circuit board 2 has several soldering holes 22 through it, with one side being the assembly surface A and the other side being the soldering surface B; Assembly surface A is used to assemble surface mount components 21, and welding surface B is provided with several wiring contacts 23; A number of pins Y are inserted into a number of solder holes 22, and the pins Y are soldered and fixed to the solder holes 22 on the soldering surface B. A number of wiring contacts 23 are soldered and fixed to the wire ends of the wire harness assembly on the soldering surface B.

[0021] In this embodiment, the surface mount element 21 of the drive circuit board 2 is disposed on the mounting surface A, and the mounting surface A faces the winding frame 11. The pin Y and the solder hole 22, the wiring contact 23 and the wire end are soldered simultaneously only on the soldering surface B on the other side, which will not damage the surface mount element 21. Furthermore, the drive circuit board 2 can be pre-sprayed with a protective coating, which simplifies the process, significantly shortens the working time, and greatly improves the yield.

[0022] Therefore, after welding is completed, external devices can supply power to the drive circuit board 2 through the wiring harness assembly and transmit control commands. The drive circuit board 2 then uses pin Y to perform drive control on the coil winding 1, thereby achieving precise drive of the rotating parts.

[0023] As an optional implementation, the drive circuit board 2 is pre-coated with a protective coating.

[0024] Specifically, compared to the traditional process that requires applying a protective coating between two welding steps and waiting for it to dry, this embodiment can pre-coat the drive circuit board 2, or directly purchase a drive circuit board 2 with a protective coating, thereby simplifying the coating and drying processes, shortening the working time, and eliminating the need to occupy space for drying.

[0025] As an alternative implementation, the mounting surface A faces the winding frame 11 of the coil winding 1.

[0026] As an optional implementation, the support post T is positioned and supported against the assembly surface A in conjunction with the pin Y inserted into the welding hole 22.

[0027] As an alternative implementation, the patch element 21 on the mounting surface A does not touch the support post T or the pin Y.

[0028] Here, the placement of the surface mount component 21 on the mounting surface A avoids the support pillar T and the pin Y, so as to ensure that when the drive circuit board 2 is mounted on the winding frame 11, the surface mount component 21 is not interfered with by other structures and can operate stably for a long time.

[0029] As an optional implementation, the top of the winding frame 11 is provided with a wiring groove 111, one side is provided with a buckle 112, and the other side is provided with a boss 113.

[0030] As an optional implementation, the wire harness assembly includes a plurality of wires, and a protective box is fitted over the plurality of wires. The cable guard is used to snap onto the outside of the winding frame 11 based on the clip 112.

[0031] As an optional implementation, the wire protection box shields and protects the winding frame 11, the drive circuit board 2, and the Y pin. The wires of the wire harness assembly are laid in the wiring trough 111.

[0032] Here, the cable protection box can completely shield the winding frame 11, the drive circuit board 2, the pin Y, etc., to prevent damage during storage, transportation or assembly.

[0033] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, the surface mount components of the drive circuit board are disposed on the mounting surface, which faces the winding skeleton. Soldering operations are performed on the pins and solder holes, wiring contacts and wire ends only on the other side of the soldering surface. This will not damage the surface mount components. Furthermore, the drive circuit board can be pre-sprayed with a protective coating after the previous surface mount process is completed. The process is simplified, the working time is significantly shortened, and the yield is greatly improved.

[0034] Example 2 Please see Figure 6 The second aspect of this embodiment discloses a welding method, which includes: 601. Fixed coil winding.

[0035] In this embodiment, the coil winding is first fixed in the working area with its winding frame facing upwards to facilitate subsequent welding operations.

[0036] 602. Place the drive circuit board on the winding frame of the coil winding, so that the pins of the coil winding are inserted into the solder holes of the drive circuit board.

[0037] In this embodiment, the drive circuit board is positioned on the winding frame of the coil winding. At this time, the pins are inserted into the soldering holes, and the wiring contacts are also exposed on the soldering surface.

[0038] 603. Soldering and fixing the pins and solder holes on the soldering surface of the drive circuit board, and soldering and fixing the wiring contacts on the soldering surface to the wire ends of the wire harness assembly.

[0039] In this embodiment, the pins and soldering holes, as well as the wiring contacts and wire ends, are soldered simultaneously, thereby eliminating the need for separate soldering, reducing process time, and avoiding damage to the completed structure caused by secondary soldering.

[0040] As an optional implementation, a protective coating is pre-applied to the drive circuit board; The other side of the soldering surface of the drive circuit board is the assembly surface, where surface mount components are assembled. The surface of soldering surface B is an insulating substrate.

[0041] Here, the drive circuit board does not need to be sprayed with a protective coating after soldering, simplifying the spraying and drying process.

[0042] The surface mount components are concentrated on the mounting surface, while the soldering surface is only the insulating substrate, which effectively ensures that the soldering process will not damage the surface mount components.

Claims

1. A claw-pole intelligent motor with a built-in drive circuit board, characterized in that, include: Coil winding (1), and drive circuit board (2) mounted on the side of said coil winding (1); The coil winding (1) has a winding frame (11) on its side. The surface of the winding frame (11) has several support posts (T) and several pins (Y). The pins (Y) are connected to the terminals of the coil winding (1). The drive circuit board (2) has several soldering holes (22) through it, one side of which is the assembly surface (A) and the other side is the soldering surface (B); The mounting surface (A) is used to mount patch elements (21), and the welding surface (B) is provided with a plurality of wiring contacts (23). A plurality of the pins (Y) are inserted into a plurality of the solder holes (22), and the pins (Y) and the solder holes (22) are soldered and fixed on the solder surface (B). A plurality of the wiring contacts (23) are soldered and fixed to the wire ends of the wire harness assembly on the solder surface (B).

2. The claw-pole intelligent motor with a built-in drive circuit board according to claim 1, characterized in that, include: The drive circuit board (2) is pre-coated with a protective coating.

3. A claw-pole intelligent motor with a built-in drive circuit board according to claim 1, characterized in that, include: The mounting surface (A) faces the winding frame (11) of the coil winding (1).

4. A claw-pole intelligent motor with a built-in drive circuit board according to claim 3, characterized in that, include: The support post (T) positions and supports the mounting surface (A) in conjunction with the pin (Y) inserted into the welding hole (22).

5. A claw-pole intelligent motor with a built-in drive circuit board according to claim 4, characterized in that, include: The patch element (21) on the surface of the mounting surface (A) does not touch the support post (T) or the pin (Y).

6. A claw-pole intelligent motor with a built-in drive circuit board according to claim 1, characterized in that, include: The top of the winding skeleton (11) is provided with a wiring groove (111), a buckle (112) is provided on one side, and a boss (113) is provided on the other side.

7. A claw-pole intelligent motor with a built-in drive circuit board according to claim 6, characterized in that, include: The wire harness assembly includes a plurality of wires, and the plurality of wires are covered with a wire protection box. The cable guard box is used to be fastened to the outside of the winding frame (11) based on the buckle (112).

8. A claw-pole intelligent motor with a built-in drive circuit board according to claim 7, characterized in that, include: The cable protection box provides shielding and protection for the winding frame (11), the drive circuit board (2), and the pins (Y); The wires of the wiring harness assembly are laid in the wiring groove (111).

9. A welding method, characterized in that, The welding method includes: Fixed coil winding; A drive circuit board is placed on the winding frame of the coil winding, so that the pins of the coil winding are inserted into the solder holes of the drive circuit board. The pins and solder holes are soldered and fixed on the soldering surface of the drive circuit board, and the wiring contacts on the soldering surface are soldered and fixed to the wire ends of the wire harness assembly.

10. A welding method according to claim 9, characterized in that, The welding method further includes: The drive circuit board is pre-coated with a protective coating; The other side of the welding surface of the drive circuit board is the assembly surface, on which surface mount components are assembled. The surface of the welding surface is an insulating substrate.

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