CN215528003U - Improved terminal connecting structure - Google Patents
Improved terminal connecting structure Download PDFInfo
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- CN215528003U CN215528003U CN202120895745.4U CN202120895745U CN215528003U CN 215528003 U CN215528003 U CN 215528003U CN 202120895745 U CN202120895745 U CN 202120895745U CN 215528003 U CN215528003 U CN 215528003U
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- terminal
- spot welding
- welding
- pcb
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Abstract
The present invention relates to an improved terminal connection structure. Conventional brushless DC motor is with copper plug-in components lug connection copper line and PCB board, and the interval is little between board and the terminal, does not have four lines of sufficient space spot welding, and the terminal need tin-plating again before welding with the PCB board, has increased the operation degree of difficulty. The stator core welding structure comprises an annular support at the upper end of a stator core, wherein a terminal spot welding structure for welding an enameled wire is arranged on the annular support, and a PCB welding terminal structure is arranged on one side of the terminal spot welding structure. The utility model solves the problem of oxidation of the welded part of the pcb after the terminal spot welding; two paths of spot welding are divided, so that the problem that 4 enamelled wires cannot be subjected to spot welding due to the limitation of a space structure can be solved, and the plate hiding rate and the plate hiding efficiency are improved; the compression space structure meets the miniaturization requirement of the existing hand-held electric tool, shortens the length of the rotor and saves the cost.
Description
Technical Field
The present invention relates to an improved terminal connection structure of a brushless dc motor for an electric power tool.
Background
Conventional brushless DC motor is with copper plug-in components lug connection copper line and PCB board, and the interval is little between board and the terminal, does not have four lines of sufficient space spot welding, and spot welding position and customer's welding position are close, and the heat that the spot welding process produced leads to terminal cladding material oxidation, and the terminal need tin-plating again before welding with the PCB board, has increased the operation degree of difficulty.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an improved terminal connecting structure, which can solve the problem that 4 enamelled wires cannot be subjected to spot welding due to the limitation of a space structure, compresses the space structure and meets the miniaturization requirement of the conventional handheld electric tool.
Therefore, the utility model adopts the following technical scheme: the utility model provides a modified terminal connection structure, its characterized in that includes the ring carrier of stator core upper end, the ring carrier on set up the terminal spot welding structure that is used for welding the enameled wire, one side of terminal spot welding structure set up PCB board welded terminal structure.
The annular support comprises a plurality of connecting blocks which are arranged in a separated mode, and the terminal spot welding structure and the PCB welding terminal structure are arranged on two sides of one connecting block in a separated mode.
The terminal spot welding structure comprises a sheet-shaped body arranged on the support, and two wiring hooks are arranged at the outer end of the sheet-shaped body in a side-by-side separated mode.
The PCB welding terminal structure comprises a transverse sheet arranged on the support, and a vertical sheet inserted into the PCB insertion hole is formed at the upper end of the transverse sheet.
The PCB welding terminal structure is L-shaped.
The annular support comprises an annular base, and a plurality of connecting blocks which are arranged in a separated mode are formed on the annular base.
A threading empty groove is formed between the lower end of the sheet-shaped body and the annular base.
The utility model solves the problem of oxidation of the welded part of the pcb after the terminal spot welding; two paths of spot welding are divided, so that the problem that 4 enamelled wires cannot be subjected to spot welding due to the limitation of a space structure can be solved, and the plate hiding rate and the plate hiding efficiency are improved; the compression space structure meets the miniaturization requirement of the existing hand-held electric tool, shortens the length of the rotor and saves the cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
An improved terminal connection structure as shown in fig. 1 comprises a ring-shaped bracket at the upper end of a stator core 9, wherein a terminal spot welding structure 8 for welding an enameled wire is arranged on the ring-shaped bracket, and a PCB welding terminal structure 4 is arranged on one side of the terminal spot welding structure.
The annular support comprises a plurality of connecting blocks 7 which are arranged in a separated mode, and the same group of terminal spot welding structures and the PCB welding terminal structures are arranged on two sides of one connecting block in a separated mode. The terminal spot welding structure comprises a sheet-shaped body arranged on the support, and two wiring hooks 3 are arranged at the outer end of the sheet-shaped body in a side-by-side separated mode.
The PCB welding terminal structure comprises a transverse sheet arranged on the support, and a vertical sheet inserted into the jack of the PCB 6 is formed at the upper end of the transverse sheet. The PCB welding terminal structure is L-shaped. The annular support comprises an annular base 5 on which a plurality of spaced connection blocks 7 are formed. A threading empty groove 1 is formed between the lower end of the sheet body and the annular base.
The utility model solves the problem of oxidation of the welded part of the pcb after the terminal spot welding; two paths of spot welding are divided, so that the problem that 4 enamelled wires 2 cannot be subjected to spot welding due to space structure limitation can be solved, and the plate hiding rate improving efficiency are improved; the compression space structure meets the miniaturization requirement of the existing hand-held electric tool, shortens the length of the rotor and saves the cost.
The foregoing is merely exemplary of the preferred embodiments of the present invention and is not intended to limit the utility model thereto. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a modified terminal connection structure, its characterized in that includes the ring carrier of stator core upper end, the ring carrier on set up the terminal spot welding structure that is used for welding the enameled wire, one side of terminal spot welding structure set up PCB board welded terminal structure.
2. An improved terminal connecting structure as claimed in claim 1, wherein said ring-shaped support includes a plurality of spaced-apart connecting blocks, and said terminal spot welding structure and said PCB board welding terminal structure are spaced-apart on both sides of one connecting block.
3. An improved terminal connecting structure as claimed in claim 2, wherein said terminal spot welding structure comprises a plate body mounted on the bracket, and two wiring hooks are provided at the outer ends of said plate body side by side in a spaced relationship.
4. An improved terminal connecting structure as claimed in claim 3, wherein said PCB solder terminal structure comprises a cross piece mounted on the bracket, an upper end of said cross piece forming a riser inserted into the insertion hole of the PCB.
5. An improved terminal connecting structure as claimed in claim 4, wherein said PCB board solder terminal structure is "L" shaped.
6. An improved terminal-connecting structure as set forth in claim 5, wherein said annular frame includes an annular base, said annular base having a plurality of spaced-apart connecting strips formed thereon.
7. An improved terminal-connecting structure as set forth in claim 3, wherein a threading slot is formed between the lower end of said plate-like body and said annular base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895745.4U CN215528003U (en) | 2021-04-28 | 2021-04-28 | Improved terminal connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895745.4U CN215528003U (en) | 2021-04-28 | 2021-04-28 | Improved terminal connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215528003U true CN215528003U (en) | 2022-01-14 |
Family
ID=79803012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120895745.4U Active CN215528003U (en) | 2021-04-28 | 2021-04-28 | Improved terminal connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215528003U (en) |
-
2021
- 2021-04-28 CN CN202120895745.4U patent/CN215528003U/en active Active
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