Circuit board layout structure and brushless controller
A layout structure and circuit board technology, applied to the details of conductive pattern layout, electronic commutation motor control, control system, etc., can solve the problems of large size, affecting the stability of the main chip operation, complex structure, etc.
Pending Publication Date: 2022-06-24
谢渊斌
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Problems solved by technology
[0002] At present, brushless motors are widely used in electric tools, but the traditional brushless controllers are relatively large, which makes it inconvenient for brushless motor controllers to be installed in smaller electric tools (such as hand-held electric tools). Installation, even if the brushless controller is installed in a small electric tool, due to its many circuit units and complex structure, there are many internal parts and it is not easy to dissipate heat, which will cause the temperature of the main chip to be too high during operation, seriously Affect the running stability of the main chip
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[0071] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0072] refer to Figure 1 to Figure 3 As shown, a circuit board layout structure includes at least a first circuit board 100, a second circuit board 200 and a capacitor 300;
[0073] The first circuit board 100 includes a power portion 10a and a driving portion 10b that are electrically connected on the main surface thereof. The power portion 10a includes a plurality of power elements 10a-1, such as a plurality of MOS tubes; the power portion 10a and the driving portion 10b are partitioned layout;
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The invention provides a circuit board layout structure which comprises a first circuit board which comprises a power part and a driving part which are arranged on the main surface of the first circuit board and electrically connected, the power part comprises a plurality of power elements, and the power part and the driving part are arranged in a partitioned mode; the capacitor is located on the outer side of the side surface of the first circuit board and electrically connected with the side surface, and the axis of the capacitor in the length direction is parallel to or coincides with the main surface of the first circuit board; and the second circuit board comprises an MCU, and the second circuit board is correspondingly stacked on the driving part of the first circuit board and is electrically connected with the driving part of the first circuit board. The circuit board layout structure is small in size and stable in operation. In addition, the invention further provides a brushless controller based on the circuit board layout structure, and the brushless controller is small in size and stable in operation.
Description
technical field [0001] The invention relates to a circuit board layout structure and a brushless controller. Background technique [0002] At present, brushless motors are widely used in power tools. However, the traditional brushless controllers are large in size, which makes it inconvenient for brushless motor controllers for small-sized power tools (such as hand-held power tools). Installation, even if the brushless controller is installed in a small power tool, due to its many circuit units and complex structure, there are many internal parts, which is not easy to dissipate heat, resulting in the temperature of the main chip being too high during operation, which is serious. Affect the running stability of the main chip. In particular, the control system is the core part of the brushless DC motor (BLDC) and is susceptible to electromagnetic interference. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a circuit board layout struct...
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IPC IPC(8): H05K1/02H02K11/33H02P6/00
CPCH05K1/0296H02K11/33H02P6/00
Inventor 谢渊斌
Owner 谢渊斌