Controller wiring structure convenient for automatic production

Abstract

The utility model relates to a controller wiring structure convenient for automatic production in the controller field, comprising a housing, a PCB assembly and an EMC assembly, the EMC assembly is electrically connected with the PCB assembly, the housing is composed of an upper cover and a lower cover, one end of the lower cover close to the upper cover is provided with a conductive wiring cavity, the upper cover is used for covering the conductive wiring cavity, and the EMC assembly is electrically connected with the PCB assembly. A terminal positioning groove is formed in the conductive wiring cavity, an output terminal and an input terminal are installed in the conductive wiring cavity, the output terminal and the input terminal are both provided with terminal pins, the terminal pins penetrate through the terminal positioning groove to extend to the surface of the lower cover, the terminal pins are used for being connected with a PCB assembly, one end of the input terminal is connected with an EMC assembly, and the other end of the input terminal is connected with an EMC assembly. The output terminal is used for being connected with a motor lead, and the output terminal and the input terminal are arranged in the lower cover, so that the connection between the motor and the EMC assembly and the PCB assembly is more convenient, the PCB assembly does not need to be welded with a lead during production, production and assembly can be carried out through automatic equipment, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of controllers, and in particular to the wiring structure of controllers that facilitates automated production. Background Technology

[0002] A power tool controller is a device that controls the mechanical quantities, working sequence, and operating mode of a power tool by controlling its electrical parameters. It is primarily connected to the brushless motor within the power tool. With the continuous advancement of lithium battery technology and the evolving needs of consumers, the power tool industry is showing a trend towards cordless operation, lithium battery integration, integration, and intelligence. As a core component of power tools, the controller plays a crucial role in driving this trend.

[0003] like Figure 1 The structure of the controller for power tools on the market includes a PCB assembly 1, a switch 3 and an EMC assembly 2. The EMC assembly 2 is connected to the PCB assembly 1 via two input lines 5. The motor is connected to the PCB assembly 1 via three output lines 4. The switch 3 is connected to the PCB assembly 1 via a ribbon cable.

[0004] In the existing controller, the three output lines 4 and the two input lines 5 are directly soldered to the circuit board of PCB assembly 1. During the production process, they can only be soldered manually and cannot be assembled by automated equipment, resulting in low production efficiency and the quality of manual soldering cannot be guaranteed. Utility Model Content

[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a controller wiring structure that facilitates automated production, which can effectively solve the technical problem that the output and input lines are directly soldered onto the circuit board, making automated production impossible.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A controller wiring structure for easy automated production includes a housing, a PCB assembly, and an EMC assembly. The EMC assembly is electrically connected to the PCB assembly. The housing consists of an upper cover and a lower cover. The PCB assembly and the EMC assembly are respectively installed in the lower cover and the upper cover. A conductive wiring cavity is provided at the end of the lower cover near the upper cover. The upper cover is used to cover the conductive wiring cavity. A terminal positioning groove is provided in the conductive wiring cavity. Output terminals and input terminals are installed in the conductive wiring cavity. Terminal pins are provided on both the output terminals and the input terminals. The terminal pins extend through the terminal positioning groove to the surface of the lower cover. The terminal pins are used to connect to the PCB assembly. The end of the input terminal away from the terminal pin is connected to the EMC assembly. The end of the output terminal away from the terminal pin is used to connect to the motor lead.

[0008] Furthermore, a connecting piece is provided inside the conductive wiring cavity. The end of the input terminal away from the terminal pin is assembled with the connecting piece. The connecting piece extends to the surface of the upper cover and connects with the EMC component. Connecting the input terminal and the EMC component through the connecting piece can further improve production efficiency.

[0009] Furthermore, the edge of the conductive wiring cavity is provided with a lead wire sleeve and a ribbon cable sleeve. One end of the lead wire sleeve and the ribbon cable sleeve extends to the side wall of the lower cover. The output wire of the motor can enter the conductive wiring cavity through the lead wire sleeve and connect to the output terminal. The ribbon cable of the push-button switch can enter the conductive wiring cavity through the ribbon cable sleeve and connect to the PCB assembly. The lead wire sleeve and the ribbon cable sleeve can fix the position of the ribbon cable of the push-button switch and the output wire of the motor, and prevent the ribbon cable and the output wire from shaking and causing the connection to loosen.

[0010] Furthermore, the output terminal is provided with a wiring port, into which the motor's output wire can be inserted. The side wall of the wiring port is provided with a wire clamping screw hole, which can be screwed into the wire clamping screw hole to clamp the motor's output wire, facilitating quick connection or disconnection of the output wire from the output terminal.

[0011] Furthermore, the lower cover and the upper cover are detachably connected by bolts, and the upper cover can be removed when wiring, making wiring more convenient.

[0012] Furthermore, the input terminal is provided with a threaded connection hole at one end near the top cover, and the bolt can be passed through the top cover and tightened into the threaded connection hole of the input terminal. The input terminal is hexagonal prism-shaped to prevent the input terminal from slipping and rotating in the terminal positioning groove when the bolt is tightened.

[0013] Furthermore, the lower cover is integrally formed with the output and input terminals through an insert injection molding process, which simplifies the assembly steps in the production process and improves production efficiency.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: an output terminal and an input terminal are provided in the lower cover. The output terminal and the input terminal are electrically connected to the PCB assembly. The output line of the motor is electrically connected to the PCB assembly through the output terminal. The EMC assembly and the PCB assembly are electrically connected through the input terminal. This makes the connection between the motor and the EMC assembly and the PCB assembly more convenient. During production, the PCB assembly does not need to be soldered to the wires, so it can be assembled by automated equipment, which effectively improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of existing technology;

[0016] Figure 1Numbering: 1-PCB assembly, 2-EMC assembly, 3-switch, 4-output line, 5-input line.

[0017] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 3 This is an exploded view of the structure of this utility model;

[0019] Figure 4 This is a top perspective view of the lower cover of this utility model;

[0020] Figure 5 A front perspective view of the lower cover of this utility model after the output terminals and input terminals are installed;

[0021] Figure 6 A bottom perspective view of the lower cover of this utility model after the output and input terminals are installed;

[0022] Figure 7 This is a three-dimensional schematic diagram of the output terminal in this utility model;

[0023] Figure 8 This is a three-dimensional schematic diagram of the input terminal in this utility model;

[0024] The numbers in the diagram are: 1-PCB assembly, 2-EMC assembly, 3-top cover, 4-bottom cover, 5-conductive wiring cavity, 6-output terminal, 601-wiring port, 602-crimping screw hole, 7-input terminal, 701-threaded connection hole, 8-terminal pin, 9-terminal positioning groove, 10-lead sleeve, 11-ribbon sleeve, 12-bolt, 13-connecting piece. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The following is combined Figures 2-8 The wiring structure of the controller, which facilitates automated production according to this utility model, is described in detail below:

[0027] A controller wiring structure for easy automated production includes a housing, a PCB assembly 1, and an EMC assembly 2. The EMC assembly 2 is electrically connected to the PCB assembly 1. The housing consists of an upper cover 3 and a lower cover 4. The PCB assembly 1 and the EMC assembly 2 are respectively installed in the lower cover 4 and the upper cover 3. A conductive wiring cavity 5 is provided at one end of the lower cover 4 near the upper cover 3. The upper cover 3 is used to cover the conductive wiring cavity 5. A terminal positioning groove 9 is provided in the conductive wiring cavity 5. An output terminal 6 and an input terminal 7 are installed in the conductive wiring cavity 5. Terminal pins 8 are provided on both the output terminal 6 and the input terminal 7. The terminal pins 8 extend through the terminal positioning groove 9 to the surface of the lower cover 4. The terminal pins 8 are used to connect with the PCB assembly 1. The lower cover 4 is open to the ground. The lower cover 4 is integrally formed with the output terminal 6 and input terminal 7 through insert injection molding. The end of the input terminal 7 away from the terminal pin 8 is connected to the EMC component 2, and the end of the output terminal 6 away from the terminal pin 8 is used to connect to the motor lead. The lower cover 4 is integrally formed with the output terminal 6 and input terminal 7 through insert injection molding, which simplifies the assembly steps in the production process and improves production efficiency. The output terminal 6 is provided with a wiring port 601, and the output wire of the motor can be inserted into the wiring port 601. The side wall of the wiring port 601 is provided with a wire clamping screw hole 602. The output wire of the motor can be clamped by screwing the wire clamping screw into the wire clamping screw hole 602, which facilitates quick connection or disconnection of the output wire and the output terminal 6.

[0028] The controller wiring structure in this embodiment facilitates automated production. Output terminals 6 and input terminals 7 are provided in the lower cover 4. Output terminals 6 and input terminals 7 are electrically connected to the PCB assembly 1. The output wires of the motor are electrically connected to the PCB assembly 1 via output terminals 6. The EMC assembly 2 is electrically connected to the PCB assembly 1 via input terminals 7. This makes the connection between the motor, EMC assembly 2, and PCB assembly 1 more convenient. During production, the PCB assembly 1 does not need to be soldered to wires, allowing for automated assembly and effectively improving production efficiency.

[0029] The edge of the conductive wiring cavity 5 is provided with a lead wire sleeve 10 and a ribbon cable sleeve 11. One end of the lead wire sleeve 10 and the ribbon cable sleeve 11 extends to the side wall of the lower cover 4. The output wire of the motor can enter the conductive wiring cavity 5 through the lead wire sleeve 10 and connect to the output terminal 6. The ribbon cable of the push button switch can enter the conductive wiring cavity 5 through the ribbon cable sleeve 11 and connect to the PCB assembly 1. The lead wire sleeve 10 and the ribbon cable sleeve 11 can fix the position of the ribbon cable of the push button switch and the output wire of the motor, and prevent the ribbon cable and the output wire from shaking and causing the connection to loosen.

[0030] The lower cover 4 and the upper cover 3 are detachably connected by bolts 12. The upper cover 3 can be disassembled for easier wiring. The input terminal 7 has a threaded connection hole 701 at the end near the upper cover 3. The bolt 12 can pass through the upper cover 3 and be tightened into the threaded connection hole 701 of the input terminal 7. The input terminal 7 is hexagonal prism-shaped to prevent the input terminal 7 from slipping and rotating in the terminal positioning groove 9 when the bolt 12 is tightened. A connecting piece 13 is provided in the conductive wiring cavity 5. The end of the input terminal 7 away from the terminal pin 8 is assembled with the connecting piece 13. The connecting piece 13 extends to the surface of the upper cover 3 and connects to the EMC component 2. Connecting the input terminal 7 and the EMC component 2 through the connecting piece 13 can further improve production efficiency. When the bolt 12 is tightened into the input terminal 7, the connecting piece 13 is pressed against the surface of the input terminal 7 by the bolt 12.

[0031] PCB assembly 1 includes a main control circuit board, IGBTs, capacitors, resistors, and a heat sink. The IGBTs, capacitors, and resistors are all soldered onto the main control circuit board. The heat sink is attached to the IGBTs for heat dissipation. The main control circuit board has a ribbon cable interface. The terminal pins 8 of the output terminal 6 and the input terminal 7 pass through the main control circuit board and are soldered. EMC assembly 2 includes a control circuit board, a common mode inductor, and a capacitor. The common mode inductor and capacitor are soldered onto the control circuit board. The end of the connecting piece 13 furthest from the input terminal 7 is inserted into the control circuit board. The functions and working principles of PCB assembly 1 and EMC assembly 2 are common knowledge and conventional techniques in the field. Those skilled in the art know or can easily obtain relevant information, so they will not be described in detail again.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A controller wiring structure for easy automated production, comprising a housing, a PCB assembly, and an EMC assembly, wherein the EMC assembly is electrically connected to the PCB assembly, characterized in that: The housing consists of an upper cover and a lower cover. The PCB assembly and the EMC assembly are respectively installed in the lower cover and the upper cover. A conductive wiring cavity is provided at the end of the lower cover near the upper cover. The upper cover is used to cover the conductive wiring cavity. A terminal positioning groove is provided in the conductive wiring cavity. Output terminals and input terminals are installed in the conductive wiring cavity. Terminal pins are provided on both the output terminals and the input terminals. The terminal pins extend through the terminal positioning groove to the surface of the lower cover. The terminal pins are used to connect with the PCB assembly. The end of the input terminal away from the terminal pin is connected with the EMC assembly. The end of the output terminal away from the terminal pin is used to connect with the motor lead.

2. The controller wiring structure for facilitating automated production according to claim 1, characterized in that: A connecting piece is provided inside the conductive wiring cavity. The end of the input terminal away from the terminal pin is assembled with the connecting piece, and the connecting piece extends to the surface of the upper cover and connects with the EMC component.

3. The controller wiring structure for facilitating automated production according to claim 1, characterized in that: The edge of the conductive wiring cavity is provided with a lead wire sleeve and a ribbon cable sleeve. One end of the lead wire sleeve and the ribbon cable sleeve extends to the side wall of the lower cover. The output wire of the motor can enter the conductive wiring cavity through the lead wire sleeve and connect to the output terminal. The ribbon cable of the push-button switch can enter the conductive wiring cavity through the ribbon cable sleeve and connect to the PCB assembly.

4. The controller wiring structure for facilitating automated production according to any one of claims 1-3, characterized in that: The output terminal is provided with a wiring port, into which the motor output wire can be inserted. The side wall of the wiring port is provided with a wire clamping screw hole, which can be screwed into the wire clamping screw hole to clamp the motor output wire.

5. The controller wiring structure for facilitating automated production according to any one of claims 1-3, characterized in that: The lower cover and the upper cover are detachably connected by bolts.

6. The controller wiring structure for facilitating automated production according to claim 5, characterized in that: The input terminal has a threaded connection hole at one end near the top cover. A bolt can be passed through the top cover and tightened into the threaded connection hole of the input terminal. The input terminal is hexagonal prism in shape.

7. The controller wiring structure for facilitating automated production according to any one of claims 1-3, characterized in that: The lower cover is integrally formed with the output and input terminals through an insert injection molding process.

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