CN112722142B - Controller, manufacturing method thereof and electric scooter - Google Patents

Controller, manufacturing method thereof and electric scooter Download PDF

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Publication number
CN112722142B
CN112722142B CN202011402578.1A CN202011402578A CN112722142B CN 112722142 B CN112722142 B CN 112722142B CN 202011402578 A CN202011402578 A CN 202011402578A CN 112722142 B CN112722142 B CN 112722142B
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China
Prior art keywords
circuit board
printed circuit
controller
power
housing
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CN202011402578.1A
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CN112722142A (en
Inventor
不公告发明人
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Beijing Zero Innovation Technology Co ltd
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Beijing Zero Innovation Technology Co ltd
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Priority to CN202011402578.1A priority Critical patent/CN112722142B/en
Publication of CN112722142A publication Critical patent/CN112722142A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203—Cooling of mounted components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a controller and an electric scooter, wherein the controller comprises a shell, a power part, a control part, a radiating part and a supporting capacitor, wherein the control part controls the power part; the power portion includes first printed circuit board, segmentation copper bar, first electrically conductive post and the electrically conductive post of second, and the control portion includes second printed circuit board, and the manufacturing approach includes: s10: the segmented copper bar patch is arranged on the first printed circuit board; s20: mounting a first printed circuit board to the heat dissipation portion; s30: the highland barley paper is padded on the first printed circuit board, the second printed circuit board is arranged on the first printed circuit board, and the support capacitor is inserted into the accommodating groove of the heat dissipation part; s40: a sealing element and a waterproof breathable film are stuck on the inner wall of the shell; s50: the housing and the heat dissipation portion are mounted. According to the manufacturing method of the controller, through the steps S10-S50, the reliability of the controller is guaranteed to be good, meanwhile, the controller is reasonable in layout, compact in structure, good in sealing effect and dust-proof protection effect, and convenient to machine and manufacture.

Description

Controller, manufacturing method thereof and electric scooter
Technical Field
The invention relates to the technical field of controllers, in particular to a controller, a manufacturing method of the controller and an electric scooter.
Background
In the related art, the controller is used for controlling the motor, and because the device quantity on the controller is more, the device overall arrangement on the controller is unreasonable, is unfavorable for production, and is unfavorable for its miniaturized design, consequently, when the device of how reasonable overall arrangement controller, the good while of assurance controller makes rationally, has become the problem that awaits the opportune moment to solve.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the manufacturing method of the controller, the controller is good in structural reliability, the modular design is realized, and the sealing effect is good.
The invention further provides a controller, and modular design is achieved.
The invention also provides the electric scooter which comprises the controller, and the controller is reasonable in layout, so that the electric scooter is more convenient to produce and maintain and has good performance.
According to a manufacturing method of a controller of an embodiment of the present invention, the controller is used for controlling a motor and includes: the device comprises a shell, a power part, a control part, a support capacitor and a heat radiating part; the shell is arranged on one side of the control part, which is far away from the power part; the control part controls the power part to realize the control of the motor; the power part comprises a first printed circuit board, a segmented copper bar, a first conductive column and a second conductive column, the control part comprises a second printed circuit board, the segmented copper bar, the first conductive column and the second conductive column are all located on the first printed circuit board, and the first conductive column and the second conductive column all penetrate through the second printed circuit board; the support capacitor is electrically connected with the first printed circuit board through the first conductive column and is electrically connected with the second printed circuit board through the second conductive column; the heat dissipation part is positioned on one side of the first printed circuit board, which is far away from the second printed circuit board;
According to the manufacturing method of the controller of the embodiment of the invention, the manufacturing method comprises the following steps: s10: the segmented copper bar patch is arranged on the first printed circuit board; s20: mounting the first printed circuit board to the heat dissipation portion; s30: the highland barley paper is padded on the first printed circuit board, the second printed circuit board is installed on the first printed circuit board, and the support capacitor is inserted into the accommodating groove of the heat dissipation part; s40: a sealing element and a waterproof breathable film are stuck on the inner wall of the shell; s50: and mounting the housing and the heat dissipation part.
According to the manufacturing method of the controller, through the steps S10-S50, the reliability of the controller is guaranteed to be good, meanwhile, the controller is reasonable in layout, compact in structure, good in sealing effect and dust-proof protection effect, and convenient to machine and manufacture.
In some embodiments, the S10 further includes the step of soldering the segmented copper bar to the first printed circuit board.
In some embodiments, the first printed circuit board is mounted to the heat sink portion by first screws; the S20 further includes a step of fixing the first conductive pillar and the second conductive pillar to the first printed circuit board by a second screw.
In some embodiments, the controller further comprises a shield arranged on one side of the shell facing away from the power part, one of the shell and the shield is provided with a buckle, the other shell and the shield are provided with a clamping groove, the shield is matched with the shell in a buckle mode, and the shell and the heat dissipation part are in threaded connection; the step S50 further includes the step of clamping the shroud to the housing.
In some embodiments, the controller further comprises a first connector through which the heat sink portion, the first printed circuit board, and the second printed circuit board are connected; the S10 further includes the step of mounting the first connector patch on the first printed circuit board and soldering.
A controller according to an embodiment of the present invention is a controller for controlling a motor, the controller including: the controller comprises a shield, a shell, a control part, a power part and a heat radiating part which are sequentially stacked, wherein at least one of the shell and the shield is used for protecting an external cable of the controller; the control part controls the power part to realize the control of the motor; the power part comprises a first printed circuit board, a first conductive column and a second conductive column, the control part comprises a second printed circuit board, and the first conductive column and the second conductive column penetrate through the second printed circuit board; the heat dissipation portion is located on one side of the first printed circuit board, which faces away from the second printed circuit board.
According to the controller provided by the embodiment of the invention, the modular design of the controller is convenient to realize. The controller is convenient to produce and maintain, good in universality and convenient to realize high-power design of the controller, and the first conductive column and the second conductive column penetrate through the second printed circuit board, so that the miniaturization design of the controller is facilitated. And the arrangement of the shell and the protective cover can not only protect the external input and output cables of the controller, but also protect other controlled parts, and can improve the structural reliability of the controller.
In some embodiments, the control portion further comprises a control circuit, a driving circuit and a second connector on the second printed circuit board, the control circuit and the driving circuit being electrically connected, the driving circuit being electrically connected with the second connector; the power part also comprises a power tube and a first connector which are positioned on the first printed circuit board, the second printed circuit board is positioned on one side of the first printed circuit board where the power tube is positioned, and the second connector is electrically connected with the first connector; the controller further comprises a supporting capacitor, the supporting capacitor is electrically connected with the first printed circuit board through the first conductive column and electrically connected with the second printed circuit board through the second conductive column, the first connector is electrically connected with the power tube, the supporting capacitor is electrically connected with the second printed circuit board, and the supporting capacitor is located on one side, facing the first printed circuit board, of the second printed circuit board.
In some embodiments, the printed circuit board further comprises a copper square and a copper bar for electrically connecting the supporting capacitor, the copper square and the copper bar are electrically connected with the second printed circuit board, the copper square and the copper bar are located on one side of the second printed circuit board, which is far away from the supporting capacitor, and the copper square is opposite to the supporting capacitor.
In some embodiments, the heat dissipation part is formed with a receiving groove, and one end of the support capacitor is located in the receiving groove; the other end of the supporting capacitor is connected with the first printed circuit board; or the first printed circuit board is provided with an avoidance area, and the other end of the supporting capacitor is connected with the second printed circuit board through the avoidance area.
In some embodiments, the power portion further includes at least two first bus bar terminals on the first printed circuit board, the control portion includes at least two second bus bar terminals on the second printed circuit board, the first bus bar terminals and the second bus bar terminals are arranged in a one-to-one correspondence, the first bus bar terminals are electrically connected to the second bus bar terminals, the first bus bar terminals and the second bus bar terminals are used for supplying power to the support capacitor, and the second connecting member is used for fixing the first bus bar terminals and the second bus bar terminals.
In some embodiments, the inner side of the housing is provided with a first seal, and the first seal surrounds a rim of the housing.
In some embodiments, the control part further comprises a waterproof breathable film, and the waterproof breathable film is attached to one side of the outer shell facing the control part.
In some embodiments, the shroud is snap-fit with the housing; or the shield is threadedly connected to the housing.
In some embodiments, the signal terminal further comprises a first signal terminal and a second signal terminal, wherein the first signal terminal has a plurality of first pins, and the second signal terminal has a plurality of second pins; be equipped with the second sealing member on the first contact pin, the second sealing member have a plurality ofly with the first connecting hole that first contact pin corresponds, first connecting hole with the cooperation of pegging graft of first contact pin, be equipped with the third sealing member on the second contact pin, the third sealing member have a plurality ofly with the second connecting hole that the second contact pin corresponds, the second contact pin with the cooperation of pegging graft of second connecting hole.
In some embodiments, the conductive structure further includes a fourth sealing element, and the fourth sealing element is sleeved on at least one of the first conductive pillar and the second conductive pillar.
The electric scooter comprises a scooter body; the motor is used for driving the vehicle body to move; and a controller for controlling the motor. According to the electric scooter provided by the embodiment of the invention, the power part, the control part and the heat radiating part are stacked, and the control circuit, the driving circuit and the second connector are arranged on the second printed circuit board, so that the modular design of the controller is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a structural schematic diagram of one view of a controller according to an embodiment of the present invention, in which a heat dissipation portion is not shown;
FIG. 2 is another perspective structural view of a controller according to an embodiment of the present invention, wherein a heat sink portion is shown;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;
fig. 4 is a schematic structural diagram of a power section according to an embodiment of the present invention;
FIG. 5 is a perspective view of a controller according to an embodiment of the present invention;
fig. 6 is a perspective view of a partial structure of a controller according to an embodiment of the present invention, in which a heat dissipation portion is not shown;
fig. 7 is a perspective view of a partial structure of a controller according to an embodiment of the present invention, in which a heat dissipation portion is not shown;
FIG. 8 is a top view of a controller according to an embodiment of the present invention;
FIG. 9 is a front view of a controller according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of a controller according to an embodiment of the present invention;
fig. 11 is a perspective view of a power section according to an embodiment of the present invention;
FIG. 12 is a top view of a power section according to an embodiment of the invention;
FIG. 12 is a top view of a power section according to an embodiment of the invention;
FIG. 13 is a schematic structural diagram of the highland barley paper according to the embodiment of the invention;
FIG. 14 is a perspective view of a controller according to an embodiment of the present invention;
FIG. 15 is an exploded view of a controller according to an embodiment of the present invention;
Fig. 16 is a schematic structural diagram of a power section according to an embodiment of the present invention;
fig. 17 is a schematic structural view of a power part and a heat radiating part according to an embodiment of the present invention;
FIG. 18 is a schematic diagram of a portion of a controller according to an embodiment of the present invention;
FIG. 19 is a schematic diagram of a portion of a controller according to an embodiment of the present invention;
FIG. 20 is a schematic structural diagram of a controller according to an embodiment of the present invention;
fig. 21 is a schematic structural view of a shield according to an embodiment of the present invention.
Reference numerals:
a controller 1000; a power section 100; a first printed circuit board 110; an avoidance zone 110 a; avoiding the notch 110 b;
a power tube 120; a first connector 130; a first conductive post 140;
a first bus bar terminal 150; a second conductive pillar 160; an annular groove 170;
a control unit 200; a second printed circuit board 210; a first edge 211; a second edge 212; a control circuit 220;
a drive circuit 230; a second connector 240; a second bus bar terminal 250;
a second connector 260; a current sensor 270;
a heat dissipating portion 300; the receiving grooves 300 a; heat dissipation fins 300 b; a first connecting member 400; a support capacitor 500;
a copper block 600; a copper bar 700; an opening 710; highland barley paper 800, a segmented copper bar 900, a sub copper bar 910 and an opening 920;
A long copper bar 22; a small copper bar 23; a first signal terminal 24; a first pin 241; a second signal terminal 25; a second pin 251;
a housing 5; a shield 6; a first screw 55; a second screw 56;
a first seal member 51; a waterproof breathable film 52; a second seal 43; a first connection hole 431; a third seal 44; a second connection hole 441; a fourth seal 26; a fastener 54; a buckle 61; a card slot 53; .
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
It should be noted that, in the present invention, technical features in the examples and the embodiments may be combined with each other without conflict, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present invention and should not be construed as an improper limitation of the present invention. The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The orientation or positional relationship in the description of the present invention is based on the orientation or positional relationship in a state where the controller is normally used, and it is to be understood that these orientation terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention.
A method of manufacturing the controller 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 21, the controller 1000 including: the power unit includes a housing 5, a power unit 100, a control unit 200, a support capacitor 500, and a heat dissipation unit 300. The controller 1000 may be used to control the motor.
Referring to fig. 1 to 21, the housing 5 is provided on a side of the control part 200 facing away from the power part 100; the control part 200 controls the power part 100 to realize the control of the motor; the power portion 100 includes a first printed circuit board 110, a segmented copper bar 900, a first conductive pillar 140, and a second conductive pillar 160, the control portion 200 includes a second printed circuit board 210, the segmented copper bar 900, the first conductive pillar 140, and the second conductive pillar 160 are all located on the first printed circuit board 110, and the first conductive pillar 140 and the second conductive pillar 160 both penetrate through the second printed circuit board 210; the support capacitor 500 is electrically connected to the first printed circuit board 110 through 500 the first conductive pillar 140, and is electrically connected to the second printed circuit board 210 through the second conductive pillar 160; the heat sink 300 is located at a side of the first printed circuit board 110 facing away from the second printed circuit board 210.
The manufacturing method comprises the following steps:
s10: the patch of the segmented copper bar 900 is mounted on the first printed circuit board 110 to reduce or omit the arrangement of the plug-in and the bolt, and meanwhile, the connection reliability of the segmented copper bar 900 and the first printed circuit board 110 can be ensured. For example, the segmented copper bar 900 is mounted by a chip mounter.
S20: the first printed circuit board 110 is mounted to the heat sink 300. On one hand, the first printed circuit board 110 can be closely attached to the heat dissipation part 300, and on the other hand, the space can be utilized to a greater extent, and a more compact structural layout can be realized. For example, the segmented copper bar 900 and the heat sink 300 are disposed at both sides of the first printed circuit board 110, respectively.
S30: the highland barley paper 800 is padded on the first printed circuit board 110, and the arrangement of the highland barley paper 800 can avoid the mutual contact and short circuit of metal devices, and has the characteristics of low cost and high reliability. The second printed circuit board is mounted on the first printed circuit board, and the support capacitor is inserted into the receiving groove 300a of the heat sink 300, by which the size of the controller 1000 in the thickness direction is greatly reduced.
S40: the inner wall of the housing 5 is adhered with a sealing element and the waterproof breathable film 52 so as to improve the sealing performance of the controller 1000, thereby on one hand, the protection capability of the controller 1000 can be improved, and when the temperature in the controller 1000 rises, the housing 5 can freely exchange gas with the outside without damaging the waterproof and dustproof effects, and the adhered installation mode is simple and reliable.
S50: with shell 5 and the installation of heat dissipation part to accomplish the installation manufacturing of controller 1000, shell 5 can cover the control part, in order to play the effect to its protection, simultaneously, can be convenient for external input of controller 1000, output cable.
According to the manufacturing method of the controller 1000 of the embodiment of the invention, the segmented copper bar 900 is mounted on the first printed circuit board 110 in a patch manner, the first printed circuit board 110 is mounted on the heat dissipation part 300, the highland barley paper 800 is padded on the first printed circuit board 110, the sealing element and the waterproof breathable film 52 are pasted on the inner wall of the shell 5, and finally the shell 5 and the heat dissipation part are mounted. From this for controller 1000's structural reliability is good, makes controller 1000 rationally distributed simultaneously, and compact structure, and sealed effect and dustproof protective effect are good, the manufacturing of being convenient for.
In some embodiments of the present invention, S10 may further include the step of soldering the segmented copper bar 900 to the first printed circuit board 110. Therefore, the segmented copper bar 900 can be mounted and soldered on the first printed circuit board 110, so as to further ensure the mounting reliability of the segmented copper bar 900. For example, the segmented copper bar 900 may be soldered by reflow soldering.
In some embodiments of the present invention, the controller 1000 may further include a first connector 400, and the heat sink 300, the first printed circuit board 110 and the second printed circuit board 210 are connected by the first connector 400, so that the structure of the controller 1000 is more stable. S10 may further include a step of attaching the first connector 400 to the first printed circuit board 110 by soldering, thereby further improving the stability.
In some examples, the first printed circuit board 110 is mounted to the heat sink 300 by first screws 55, for example, the first screws 55 are long screws, so as to ensure the mounting reliability of the first printed circuit board 110 and the heat sink 300.
S20 further includes a step of fixing the first conductive pillar 140 and the second conductive pillar 160 to the first printed circuit board 110 by the second screw 56, so as to ensure the reliability of the connection between the first conductive pillar 140 and the second conductive pillar 160 and the first printed circuit board 110.
In some examples, the controller 1000 further comprises a shield 6, the shield 6 is disposed on a side of the housing 5 facing away from the power portion, one of the housing 5 and the shield 6 has a snap 61, the other has a snap groove 53, the shield 6 is snap-fitted to the housing 5, and the housing 5 is screw-coupled to the heat dissipation portion; s50 further includes a step of clamping the cover 6 to the housing 5, and the cover 6 is configured to protect the external input/output cable of the controller 1000. The clamping-matched shield 6 and the shell 5 are convenient to detach, good in mounting reliability and convenient to process.
For example, two adjacent end portions of the first printed circuit board 110 may have an avoiding notch 110b to form a convex plate surface, and the first printed circuit board 110 may avoid a threaded hole of the heat sink 300, which is mounted on the housing 5, by setting the avoiding notch 110b, so that the space is effectively utilized, and a compact structural arrangement is realized.
The controller 1000 according to an embodiment of the present invention includes: a shield 6, a housing 5, a control unit 200, a power unit 100, and a heat radiating unit 300 are stacked in this order.
At least one of the housing 5 and the shield 6 serves to protect an external cable of the controller 1000, and thus, structural stability of the controller 1000 may be improved.
The control part 200 controls the power part 100 to realize control of a motor (not shown), the power part 100 includes a first printed circuit board 110, a first conductive pillar 140, and a second conductive pillar 160, and the control part 200 includes a second printed circuit board 210.
The heat dissipation part 300 is located on a side of the first printed circuit board 110 away from the second printed circuit board 210, and the heat dissipation part 300 is arranged to facilitate heat dissipation of components of the controller 1000 during operation, so as to prevent the temperature of the controller 1000 from being too high. For example, the heat dissipation portion 300 may have the same extending direction as the first printed circuit board 11, the heat dissipation portion 300 may be disposed closely to the first printed circuit board 110, the power tube 120 is easy to generate heat, and the temperature of the first printed circuit board 110 is easy to rise due to the temperature rise of the power tube 120, so that the heat dissipation portion 300 may timely dissipate and discharge the heat on the first printed circuit board 110, thereby timely avoiding the over-temperature of the controller 1000.
The first conductive post 140 and the second conductive post 160 both pass through the second printed circuit board 210. Compared with the arrangement mode that the first conductive pillars 140 and the second conductive pillars 160 are directly disposed on the second printed circuit board 210, such arrangement can effectively reduce the dimension of the controller 1000 along the extending direction of the first conductive pillars 140 and the second conductive pillars 160, thereby facilitating the circuit layout and making the space of the controller 1000 compact.
According to the controller 1000 of the embodiment of the invention, the shroud 6, the shell 5, the control part 200, the power part 100 and the heat dissipation part 300 which are arranged in a stacked manner are arranged, so that the modular design of the controller 1000 is facilitated. The power portion 100 includes the first printed circuit board 110, the first conductive column 140 and the second conductive column 160, the control portion 200 includes the second printed circuit board 210, the modular design of the controller 1000 is realized, so that the production and the maintenance are more convenient, the universality is good, the high-power design of the controller 1000 is convenient to realize, the first conductive column 140 and the second conductive column 160 penetrate through the second printed circuit board 210, and the miniaturization design of the controller 1000 is facilitated. And the arrangement of the shell 5 and the shield 6 can not only protect the external input and output cables of the controller 1000, but also protect other controlled parts, and can improve the structural reliability of the controller 1000.
In some embodiments, as shown in fig. 5, the first conductive pillar 140 and the second conductive pillar 160 are located on the first printed circuit board 110, the first conductive pillar 140 is a bus conductive pillar of the input circuit, and the second conductive pillar 160 is a three-phase conductive pillar of the motor. In this way, the first conductive pillar 140 can be used to connect an external power source to supply power to the controller 1000.
In some embodiments, in conjunction with fig. 1-14, the control section 200 includes a control circuit 220, a driving circuit 230, and a second connector 240 on the second printed circuit board 210. The control circuit 220 is electrically connected to the driving circuit 230. The driving circuit 230 is electrically connected to the second connector 240. The power section 100 may further include a power tube 120 and a first connector 130 on the first printed circuit board 110. Referring to fig. 1, 3 and 5, the second pcb 210 is located at a side of the first pcb 110 where the power transistor 120 is located. By stacking the second printed circuit board 210 and the first printed circuit board 110, the area occupied by the second printed circuit board 210 and the first printed circuit board 110 is reduced.
The controller 1000 may further include a supporting capacitor 500, and the supporting capacitor 500 is electrically connected to the first printed circuit board 110 through the first conductive pillar 140 and electrically connected to the second printed circuit board 210 through the second conductive pillar 160. The support capacitor 500 may support the voltage of the bus bar; on the other hand, the ripple can be filtered out.
The support capacitor 500 is electrically connected to the power transistor 120. The first connector 130 is electrically connected to the power transistor 120. The second connector 240 is electrically connected to the first connector 130. The support capacitor 500 is electrically connected to the power transistor 120, and the support capacitor 500 is located on a side of the second pcb 210 facing the first pcb 110. For example, at least a portion of the supporting capacitor 500 may be disposed between the first printed circuit board 110 and the second printed circuit board 210 and abut against the first printed circuit board 110 and the second printed circuit board 210. Thus, on one hand, the compact structure of the controller 1000 can be ensured; on the other hand, heat dissipation of the support capacitor 500 may be facilitated.
In some examples, as shown in fig. 5 and 8-10, the second printed circuit board 210 includes opposing first and second edges 211, 212. In the direction from the first edge 211 to the second edge 212, the orthographic projection of the supporting capacitor 500 on the first printed circuit board 110, the second conductive pillar 160, the first conductive pillar 140 and the first connector 130 are sequentially arranged, the power tube 120 and the first connector 130 are disposed on the first printed circuit board 110, and the control circuit 220, the driving circuit 230 and the second connector 240 are disposed on the second printed circuit board 210, so that the sub-module arrangement of the device is realized, and the production and the assembly are facilitated.
In some embodiments, the driving circuit 230 is used to amplify the control signal of the control circuit 220. The control signal of the control circuit 220 is amplified by the driving circuit 230 and then controls the power tube 120 through the second connector 240 and the first connector 130, and the control signal of the control circuit 220 can control the conduction, the closing or the power amplification of the power tube 120, so as to control the starting, the stopping or the rotating speed of the motor.
The power transistor 120 in the embodiment of the present invention may be a Metal Oxide Semiconductor (MOS) transistor. The Printed Circuit Board is a PCB (Printed Circuit Board).
In some examples, in conjunction with fig. 10, the orthographic projection of the support capacitor 500 on the first printed circuit board 110 is located at the first edge 211 and the first connector 130 is located at the second edge 212, thus enabling a modular design of the controller 1000. For example, as shown in fig. 10, one side of the heat dissipation portion 300 away from the first printed circuit board 110 may have a plurality of heat dissipation fins 300b, one end of each heat dissipation fin 300b is spaced apart from the other end of the heat dissipation portion, and the plurality of heat dissipation fins 300b thus arranged may increase the heat dissipation area of the heat dissipation portion 300, thereby improving the heat dissipation effect.
In some examples, with reference to fig. 6 to 8, the number of the first conductive pillars 140 may be two, the number of the second conductive pillars 160 may be three, three second conductive pillars 160 are distributed at intervals, and one first conductive pillar 140 is disposed between any two adjacent second conductive pillars 160, so that on one hand, mechanical connection and electrical connection of the controller 1000 may be facilitated, and on the other hand, the structure of the controller 1000 may be compact and positioning may be facilitated. For example, the first conductive pillar 140 and the second conductive pillar 160 may both be T-shaped electrodes.
In some embodiments, as shown in fig. 5-8 and 14, the controller 1000 may further include a copper block 600 and a copper bar 700 for electrically connecting the supporting capacitor 500, the copper block 600 and the copper bar 700 being electrically connected with the second printed circuit board 210. Through the setting of copper bar 700 and copper side 600, can increase the cross-sectional area of electric current circulation, increase the current-carrying capacity, be favorable to realizing the design of the controller 1000 of heavy current.
The copper block 600 and the copper bar 700 may be located on a side of the second printed circuit board 210 away from the supporting capacitor 500, that is, the copper block 600 and the copper bar 700 are both located on the same side of the second printed circuit board 210, and the supporting capacitor is located on the other side of the second printed circuit board. The copper block 600 may be aligned with the support capacitor 500. For example, at least a portion of the copper block 600 is opposite to the supporting capacitor in the height direction as shown in fig. 5, so that the electrical connection with the supporting capacitor 500 can be facilitated, the layout is reasonable, and the miniaturization of the controller 1000 can be facilitated. For example, one of the copper bar 600 and the copper bar 700 may be connected to the positive electrode of the supporting capacitor 500, and the other is connected to the negative electrode of the supporting capacitor 500.
In some examples, the copper bar 700 is located between the copper block 600 and the second conductive pillar 160 in a direction from the first edge 211 to the second edge 212, and the copper bar 700 thus configured may achieve a modular design.
In some examples, as shown in fig. 5 to 8 and 14, the copper direction 600 may be plural, and the plural copper directions 600 are arranged at intervals in the extending direction of the first edge 211. Here, the copper block 600 may further include a plurality of extending directions, for example, in conjunction with fig. 5, 8 and 14, the plurality of copper blocks 600 are a plurality of rows spaced along the first edge 211, and a portion of the copper blocks 600 extends along the first edge 211 and a portion of the copper blocks 600 extends in a direction perpendicular to the first edge 211.
In some examples, the copper bar 700 may have an elongated shape, and the copper bar 700 may extend along the extending direction of the first edge 211, the copper bar 700 is electrically connected to the second printed circuit board 210, and a portion of the copper bar 700 that is not connected to the second printed circuit board 210 may be spaced apart from the second printed circuit board 210. The copper bar 700 is spaced from the copper square 600 in a direction from the first edge 211 to the second edge 212.
It can be understood that, in a direction from the first edge 211 to the second edge 212, the surface of the second printed circuit board 210 includes a first region and a second region which are side by side, wherein the first region and the second region both extend along the extending direction of the first edge 211, the first region and the second region are both strip-shaped regions, the copper bar 600 is disposed in the first region, and the copper bar 700 is disposed in the second region, so that the layout of the second printed circuit board 210 can be optimized, and the space utilization rate can be improved.
In some embodiments, as shown in fig. 11 and 12, the segmented copper bar 900 is disposed on the first printed circuit board 110, each segmented copper bar 900 includes at least two sub copper bars 910, and the two sub copper bars 910 may extend along a same direction. The sectional copper bar 900 can adopt a sectional welding mode, so that the sectional copper bar 900 can be braided to carry out SMT (Surface Mounted Technology) Surface mounting reflow welding, the production efficiency can be improved, the cost can be reduced, and the deformation degree of the first printed circuit board 110 caused by expansion caused by heat and contraction caused by cold of the sectional copper bar 900 can be reduced. Can be equipped with trompil 920 on the sub-copper bar 910, sub-copper bar 910 passes through the fix with screw, improves the assembly reliability on the one hand like this, and on the other hand can improve segmentation copper bar 900 and first printed circuit board 110's laminating degree, reduces the clearance between first printed circuit board 110 and the heat dissipation part 300 to can promote the radiating part 300 to the radiating efficiency of first printed circuit board 110.
In some embodiments, as shown in fig. 5, the controller 1000 may further include a temperature sampling signal terminal to facilitate monitoring of a temperature of a device of the controller 1000 to facilitate controlling heat dissipation of the controller 1000. As shown in fig. 13, the controller 1000 may further include highland barley paper 800, and the highland barley paper 800 may be sleeved on the T-shaped flow guiding column, so that the highland barley paper 800 is not fixed by additional screws or glue, thereby further simplifying the process steps and reducing the cost on the aspect of ensuring the electrical insulation function.
In an embodiment, referring to fig. 1 and 3, the second pcb 210 is located at a side of the first pcb 110 where the power transistor 120 is located. By stacking the second printed circuit board 210 and the first printed circuit board 110, the area occupied by the second printed circuit board 210 and the first printed circuit board 110 is reduced.
In one embodiment, referring to fig. 2 and 3, the controller 1000 includes a heat sink 300 and a first connector 400. The heat sink 300 is located at a side of the first printed circuit board 110 facing away from the second printed circuit board 210. The heat sink member 300, the first printed circuit board 110 and the second printed circuit board 210 are connected by a first connector 400. Since the power tube 120 is easy to generate heat, the temperature of the first printed circuit board 110 is easy to rise due to the temperature rise of the power tube 120, and the heat on the first printed circuit board 110 is dissipated and discharged in time through the heat dissipating part 300, thereby avoiding the over-temperature of the controller 1000 in time. The heat sink 300, the first printed circuit board 110 and the second printed circuit board 210 are fixed by the first connector 400, so that the structure of the controller 1000 is more stable.
Specifically, the first connector 400 may be an insulating copper pillar, or the first connector 400 is not electrically connected.
In some embodiments, the first connector 400 may be plural, such as 2, 3, 4, or 5, etc. Illustratively, the first connecting members 400 are 4 insulating copper pillars, and the 4 insulating copper pillars are disposed on four corners of the first printed circuit board 110.
In one embodiment, referring to fig. 2 and 3, the controller 1000 includes a support capacitor 500 electrically connected to the power transistor 120. The heat dissipation part 300 is formed with receiving grooves 300 a. One end of the supporting capacitor 500 is located in the receiving groove 300 a. The other end of the supporting capacitor 500 is connected to the first printed circuit board 110. Because the supporting capacitor 500 is located in the accommodating groove 300a, the contact area between the supporting capacitor 500 and the heat dissipation portion 300 is increased, so that the supporting capacitor 500 can dissipate heat in time, and the height of the controller 1000 can be reduced, so that the overall space of the controller 1000 is compact.
In another embodiment, referring to fig. 2 and 3, the first printed circuit board 110 is formed with a relief area 110 a. The other end of the supporting capacitor 500 is connected to the second printed circuit board 210 through the avoidance region 110 a. It is understood that the avoidance region 110a refers to an avoidance space formed on the first printed circuit board 110 for avoiding the support capacitor 500. For example, referring to fig. 2 and fig. 3, the width of the first printed circuit board 110 may be smaller than the width of the second printed circuit board 210, and the first printed circuit board 110 and the second printed circuit board 210 are disposed opposite to each other, so that a avoiding region 110a is formed in the width direction of the first printed circuit board 110, and the other end of the supporting capacitor 500 is connected to the second printed circuit board 210 through the avoiding region 110 a. A notch for avoiding the supporting capacitor 500 may also be formed on the first printed circuit board 110, so that the supporting capacitor 500 can pass through the notch, and the first printed circuit board 110 is prevented from interfering the connection between the supporting capacitor 500 and the second printed circuit board 210. That is, one end of the supporting capacitor 500 is located in the receiving groove 300a, and the other end of the supporting capacitor 500 is connected to the second pcb 210 through the avoiding region 110 a. In this way, it is advantageous to further reduce the height of the controller 1000 in the direction of the first printed circuit board 110 and the second printed circuit board 210, so that the overall space of the controller 1000 is more compact.
In one embodiment, referring to fig. 1-3, the power part 100 includes at least two first bus bar terminals 150 on the first printed circuit board 110. The control part 200 includes at least two second bus bar terminals 250 and at least two second connectors 260 on the second printed circuit board 210. The first bus bar terminal 150 and the second bus bar terminal 250 are provided in one-to-one correspondence. The first bus bar terminal 150 is electrically connected to the second bus bar terminal 250. The first and second bus bar terminals 150 and 250 are used to supply power to the support capacitor 500. The second connector 260 is used to fix the first and second bus bar terminals 150 and 250. The use of the first bus bar terminal 150 and the second bus bar terminal 250 facilitates wiring layout, making the space of the controller 1000 more compact. In addition, the first bus bar terminal 150, the second bus bar terminal 250, and the second connector 260, which are correspondingly disposed, may improve the connection strength between the first printed circuit board 110 and the second printed circuit board 210, may also prevent the first printed circuit board 110 and the heat dissipation part 300 from warping, and may improve the heat dissipation efficiency.
Specifically, the first bus bar terminal 150 may be a copper pipe, for example, a copper pipe having a length of 10 mm. The second connector 260 may be a screw with insulating particles, such as an M3 screw with insulating particles, or the first connector 400 may not be electrically connected. The second connector 260 may fix the first and second bus bar terminals 150 and 250 to the heat sink member 300.
In one embodiment, referring to fig. 3, the number of the power transistors 120 is at least two. At least two power tubes 120 are connected in parallel. In this way, the current of the circuit can be increased. In one embodiment, the number of power transistors 120 is 5, and 5 power transistors 120 are connected in parallel. For example, if the current of one power tube 120 is 1 ma, and 5 power tubes 120 are connected in parallel, the current is 5 ma.
In one embodiment, referring to fig. 3, the control portion 200 includes a current sensor 270 on the second pcb 210. The current sensor 270 is used to detect the current of the first conductive post 140 and/or the second conductive post 160. It should be noted that the current sensor 270 may be configured to detect the current of the first conductive pillar 140, the current sensor 270 may also be configured to detect the current of the second conductive pillar 160, and the current sensor 270 may also be configured to detect the currents of the first conductive pillar 140 and the second conductive pillar 160.
In one embodiment, the control portion 200 includes three current sensors 270, wherein one current sensor 270 is used for detecting the current of the first conductive pillar 140, and the other two current sensors 270 are used for detecting the current of the second conductive pillar 160.
In some embodiments, the first bus bar terminals 150 are spaced along the extending direction of the edge of the second printed circuit board 210, for example, along the extending direction of the second edge 212. For example, the arrangement direction of the plurality of first bus bar terminals 150 may be the same as the extending direction of the copper bar 700, and the arrangement direction of the plurality of first bus bar terminals 150 is the same as the arrangement direction of the plurality of first connectors 130, so that the modular design of the controller 1000 is facilitated, and the production and the assembly are facilitated.
In some embodiments, the inside of the housing 5 is provided with a first seal 51, and the first seal 51 surrounds the rim of the housing 5. For example, the first sealing member 51 is provided along the circumferential direction of the side of the housing 5 facing the first printed circuit board to effectively ensure its sealing performance.
In some embodiments, the controller 1000 may further include a waterproof breathable film, the waterproof breathable film is attached to one side of the housing 5 facing the control portion, the waterproof breathable film ensures that the housing 5 can freely exchange gas with the outside when the temperature in the controller 1000 rises without damaging the waterproof and dustproof effects, and can be applied to more severe environments, and has higher reliability, and does not need to additionally add protective measures when used in severe environments such as high temperature, high humidity, dustiness and the like due to higher self protective capability, and the controller is simple to use and low in cost.
In some embodiments of the invention, as shown in fig. 21, the shield 6 is snap-fitted with the housing 5; or the shield 6 is screwed to the housing 5. The detachable fit of the shield and the housing 5 can be realized by the above mounting modes, and the shield and the housing are connected stably. For example, the housing 5 is provided with a locking groove 53, the shield 6 is provided with a locking buckle 61, and the locking groove 53 and the locking buckle 61 are in locking fit.
In some examples, the controller 1000 further includes signal terminals including a first signal terminal 24 and a second signal terminal 25, the first signal terminal having a first pin 241, the second signal terminal 25 having a second pin 251, the first pin 241 having a diameter greater than the diameter of the second pin 251. The first pin 241 is provided with a second sealing member 43, the second sealing member 43 is provided with a plurality of first connecting holes 431 corresponding to the first pin, the first connecting holes 431 are in inserted fit with the first pin 241, the second pin 251 is provided with a third sealing member 44, the third sealing member 44 is provided with a plurality of second connecting holes 441 corresponding to the second pin 251, and the second pin 251 is in inserted fit with the second connecting holes 441. Thus, the sealing effect can be further improved by providing a plurality of kinds of sealing members. The second sealing member 43 and the third sealing member 44 are provided with coupling holes having different diameters according to different diameters of the pins, so that the sealing effect can be further secured.
According to an embodiment of the present invention, the controller 1000 may further include a fourth sealing element 26, and the fourth sealing element 26 is sleeved on at least one of the first conductive pillar and the second conductive pillar to further improve the sealing effect. For example, the fourth seal 2626 is an annular ring, and the first conductive pillar 140 and the second conductive pillar 160 have an annular groove 170 that is offset from the fourth seal 26, so that the fourth seal 26 is embedded in the annular groove 170 to further ensure the sealing effect. For example, the first conductive column and the second conductive column are all sleeved with the fourth sealing element 26, and the fourth sealing element 26 may be a double-layer annular ring or the same conductive column may be sleeved with two fourth sealing elements 26, so as to improve the sealing effect.
The controller 1000 according to any one of claims 6 to 15 may be manufactured by the manufacturing method of the controller 1000 according to any one of claims 1 to 5, that is, the controller 1000 may be manufactured by the manufacturing method of the controller 1000. The seals of the method of manufacturing the controller 1000 may include one or more of the first seal 51, the second seal 43, the third seal 44, and the fourth seal 26.
The embodiment of the invention also provides an electric scooter which can be a balance car, or can be a kart, and can be a motorcycle.
The electric scooter includes a body (not shown), a motor (not shown), and the controller 1000 in any of the above embodiments. The motor is used for driving the vehicle body to move. The controller 1000 is used to control the motor.
According to the electric scooter provided by the embodiment of the invention, the power part 100, the control part 200, the heat dissipation part 300, the supporting capacitor 500, the first conductive column 140 and the second conductive column 160 are arranged in this way, so that the miniaturization design of the controller 1000 is facilitated, the modular design of the controller 1000 is realized, the layout is reasonable, the production and the maintenance are more convenient, the universality is good, the high-power design of the controller 1000 is facilitated, and the performance of the electric scooter is good.
The controller 1000 and the vehicle according to the embodiment of the invention are described in detail in several specific embodiments with reference to fig. 1 to 21. It is to be understood that the following description is only exemplary, and not restrictive, of the invention.
A controller 1000 includes a power part 100 and a control part 200, the power part 100 includes a first printed circuit board 110, a power tube 120 and a first connector 130 on the first printed circuit board 110, the first connector 130 and the power tube 120 are electrically connected. The control part 200 includes a second printed circuit board 210, a control circuit 220 on the second printed circuit board 210, a driving circuit 230, and a second connector 240, the control circuit 220 and the driving circuit 230 are electrically connected, the driving circuit 230 is electrically connected to the second connector 240, and the second connector 240 is electrically connected to the first connector 130. The controller 1000 may be used to control the motor.
According to the controller 1000 of the above embodiment, the second printed circuit board 210 is located on the side of the first printed circuit board 110 where the power transistor 120 is located.
According to the controller 1000 of the above embodiment, the controller 1000 further includes the heat dissipation part 300 and the first connector 400, the heat dissipation part 300 is located on a side of the first printed circuit board 110 away from the second printed circuit board 210, and the heat dissipation part 300, the first printed circuit board 110 and the second printed circuit board 210 are connected through the first connector 400. The first connector 400 may be insulating.
According to the controller 1000 of the above embodiment, the controller 1000 further includes a supporting capacitor 500 electrically connected to the power tube 120, the heat dissipating part 300 is formed with an accommodating groove 300a, and one end of the supporting capacitor 500 is located in the accommodating groove 300 a;
the other end of the supporting capacitor 500 is connected to the first printed circuit board 110; or the first printed circuit board 110 is formed with a relief area 110a, and the other end of the support capacitor 500 is connected to the second printed circuit board 210 through the relief area 110 a.
According to the controller 1000 of the above embodiment, the power part 100 further includes at least two first bus terminals 150 on the first printed circuit board 110, the control part 200 includes at least two second bus terminals 250 on the second printed circuit board 210 and at least two second connectors 260, the first bus terminals 150 and the second bus terminals 250 are disposed in one-to-one correspondence, the first bus terminals 150 and the second bus terminals 250 are electrically connected, the first bus terminals 150 and the second bus terminals 250 are used for supplying power to the supporting capacitor 500, and the second connectors 260 are used for fixing the first bus terminals 150 and the second bus terminals 250.
According to the controller 1000 of the above embodiment, the power portion 100 includes the first conductive pillar 140 and the second conductive pillar 160 located on the first printed circuit board 110, the first conductive pillar 140 and the second conductive pillar 160 both penetrate the second printed circuit board 210, the first conductive pillar 140 is a bus conductive pillar of the input circuit, and the second conductive pillar 160 is a three-phase line conductive pillar of the motor.
According to the controller 1000 of the above embodiment, the control portion 200 further includes the current sensor 270 on the second printed circuit board 210, and the current sensor 270 is used for detecting the current of the first conductive pillar 140 and/or the second conductive pillar 160.
According to the controller 1000 of the above embodiment, there are at least two power transistors 120, and at least two power transistors 120 are connected in parallel.
A vehicle comprises a vehicle body, a motor and the controller 1000, wherein the motor is used for driving the vehicle body to move, and the controller 1000 is used for controlling the motor.
According to the vehicle of the above embodiment, the vehicle is a balance car, a kart, or a motorcycle.
Many similar controllers 1000 exist in the existing market, which cannot give consideration to high power and miniaturization design, for example, 20KW of power is achieved, the controller 1000 at the phase line current 650A level is often huge in size, mainly because the structure of the circuit board itself is not compact enough, the layout is unreasonable, the space utilization rate is low, and often because the application scene does not have the requirement and the like, most controllers 1000 do not have the capability of IP67 level protection.
Referring to fig. 1 to 21, the controller 1000 may be composed of a heat radiating part 300, a power part 100, an insulating member such as highland barley paper 800, a control part 200, a housing 5, and a shield 6. The heat dissipation portion 300, the power portion 100, the insulating member such as the highland barley paper 800, the control portion 200, the housing 5, and the shield 6 are sequentially stacked from bottom to top, and the copper pillar, the long copper bar 22, and the small copper bar 23 may be mounted on the first printed circuit board 110 by a chip mounter and soldered by reflow. Alternatively, the copper bars may be bolted to the first printed circuit board 110. Wherein, the copper column can be used as the first bus bar terminal 150, and the segmented copper bar 900 can include a long copper bar 22 and a small copper bar 23. For example, the segmented copper bar 900 may include the sub-copper bar 910, the sub-copper bar 910 may be a long copper bar 22 or a small copper bar 23, the segmented copper bar 900 may be multiple rows, each row of the segmented copper bar 900 may be composed of one long copper bar 22 and one small copper bar 23, or may be two small copper bars 23, and further may be two long copper bars 22, which is not limited herein.
The welded first printed circuit board 110 can be mounted on the heat dissipation portion 300 through the first screws 55, the total number of the first conductive columns 140 and the second conductive columns 160 can be five, and the first conductive columns can be T-shaped columns, each conductive column is fixed to the first printed circuit board 110 through the two second screws 56, that is, 5 conductive columns are fixed through 10 screws, the first printed circuit board 110 with the convex-shaped special-shaped structure avoids screw holes in the heat dissipation portion 300 and greatly utilizes space, and more compact structural arrangement is achieved.
The insulated highland barley paper 800 may be padded on the first printed circuit board 110, and the second printed circuit board 210 is mounted on the first printed circuit board 110 through the first connector 400.
The supporting capacitor 41 of the second printed circuit board 210 can be inserted into the receiving groove 300a of the heat sink 300, by which the height direction dimension of the entire controller 1000 is greatly reduced. The receiving groove 300a may be a special-shaped long strip, for example, the receiving groove 300a may include a plurality of receiving parts with the same configuration, the receiving parts or the receiving groove 300a may be a gourd-shaped special-shaped structure, or the receiving groove 300a may be a rectangular or two-end circular arc design. The supporting capacitor 500 can be adapted to the inner contour of the receiving groove 300a, and the receiving groove 300a can be filled with heat-conducting silicone grease, so that the gap between the side wall of the receiving groove 300a and the supporting capacitor 500 is minimized, and the amount of silicone grease is reduced while the heat-conducting effect is improved.
The controller 1000 may further include a first sealing member 51 such as a rubber packing and a waterproof breathable membrane 52 such as a waterproof breathable membrane, a second sealing member 43 such as a small pin packing, a third sealing member 44 such as a large pin packing, and a fourth sealing member 26 such as a small O-ring to improve the waterproof and dustproof effects of the controller 1000. For example, the first sealing member 51 and the waterproof and breathable film 52 can be adhered to the inside of the housing 5, and by arranging the large pin sealing gasket and the small O-ring, the IP 67-level protection capability can be realized, and the housing 5 can freely exchange gas with the outside when the temperature in the controller 1000 rises without damaging the waterproof and dustproof effects. The assembled housing 5 can be mounted on the assembled heat sink 300 by the fastener 54, and the wired shield 6 is clamped on the clamping groove 53 of the housing 5 by the buckle 61, thereby protecting the external input or output cable of the controller 1000. Alternatively, the shield 6 and the housing 5 may be connected by screws.
The segmented copper bar 900 can be a PCB copper bar, most or all of the segmented copper bar 900 is installed in a surface mounting and welding mode, and plug-ins and single bolt connection are reduced. The gourd-shaped receiving groove 300a reduces the gap between the supporting capacitor 500 and the receiving groove 300a, thereby improving the heat conductivity. IP67 level design plus application of waterproof breathable films. The shield 6 and the housing 5 may be snap-fit 61 connected. Thus, the controller 1000 can achieve 20KW and 65A performance and can control the size to within 200mm 140mm 76 mm. For example, the controller 1000 has a length of 200mm, a width of 140mm, and a height of 76 mm. Of course, the performance and size of the controller 1000 may be specifically set according to actual requirements, and are not limited herein.
This application is through copper bar paster equipment, the special-shaped power portion 100 and the special-shaped control part 200, and first printed circuit board 110 with the stacking of special-shaped second printed circuit board 210, and support capacitor 500 sinks to in the holding tank 300A of heat dissipation portion, so do benefit to and realize powerful design for example 20KW, realize the miniaturized design of controller 1000 simultaneously, for example, phase line current 650A's controller 1000 size can be at most 200mm 140mm 76 mm's size, and can add the rubber pad through shell 5, double-deck structural scheme such as O type circle realizes IP67 protection. Meanwhile, when the temperature in the controller 1000 rises, the shell 5 can freely exchange gas with the outside without damaging the waterproof and dustproof effects.
Through the mutual matching arrangement of the special-shaped first printed circuit board 110, the double-layer stacking of the first printed circuit board 110 and the second printed circuit board 210 and the structures that the support capacitor sinks into the accommodating groove 300a of the heat dissipation part 300, the space is utilized to the maximum extent, the extremely high power density is achieved, the high-power and high-current controller 1000 can be applied to more compact spaces, for example, the controller 1000 can be applied to more vehicles such as an electric scooter, and the application range of the controller 1000 is improved.
The copper bars are connected to the first printed circuit board 110 through a large number of patch welding processes, so that the number of devices connected through the patch welding processes is reduced, the device connection is omitted, the device connection method has the advantages of being good in consistency, simple in process, high in reliability and low in cost during production, batch production of the power portion 100 is facilitated, and efficiency is high.
The first printed circuit board 110 and the second printed circuit board 210 can be isolated by using an insulating member such as highland barley paper 800 to prevent the metal device from contacting short circuit, and the method has the characteristics of low cost and high reliability.
The holding tank 300a of the heat dissipation part 300 may adopt a gourd-shaped irregular structure to reduce the gap between the side wall of the holding tank 300a and the support capacitor 500 to the greatest extent, reduce the amount of silicone grease and simultaneously improve the heat conduction effect, and have better economical efficiency and reliability.
In addition, the controller 1000 can comprise the shell 5 and a rubber pad, IP 67-level protection can be realized by adopting the schemes of double-layer O-shaped rings and the like, and meanwhile, when the temperature in the controller 1000 rises through the waterproof breathable film, the shell 5 can freely exchange gas with the outside without damaging the waterproof and dustproof effects, can be applied to more severe environments, has higher reliability, does not need to additionally add protective measures when being used in severe environments such as high temperature, high humidity, much dust and the like due to higher protective capability of the shell, and is simple to use and low in cost.
In addition, a controller 1000 guard shield 6 can be installed on the controller 1000 shell 5, and the controller 1000 guard shield 6 plays a role in protecting the external input/output cable terminal of the controller 1000, so that the short circuit caused by the contact of metal foreign matters with the electrodes is avoided, the danger is avoided, and the safety is higher. The controller 1000 shield 6 and the controller 1000 shell 5 can be connected through the buckle 61, and the installation and the disassembly are convenient, so that the controller 1000 shield has the characteristic of simple operation.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. A method of manufacturing a controller for controlling a motor, the controller comprising: the device comprises a shell, a power part, a control part, a support capacitor and a heat radiating part;
the shell is arranged on one side of the control part, which is far away from the power part;
the control part controls the power part to realize the control of the motor;
The power part comprises a first printed circuit board, a segmented copper bar, a first conductive column and a second conductive column, the control part comprises a second printed circuit board, the segmented copper bar, the first conductive column and the second conductive column are all located on the first printed circuit board, and the first conductive column and the second conductive column all penetrate through the second printed circuit board;
the support capacitor is electrically connected with the first printed circuit board through the first conductive column and is electrically connected with the second printed circuit board through the second conductive column;
the radiating part is positioned on one side of the first printed circuit board, which is far away from the second printed circuit board, an accommodating groove is formed in the radiating part, and one end of the supporting capacitor is positioned in the accommodating groove;
an avoidance area is formed on the first printed circuit board, and the other end of the supporting capacitor is connected with the second printed circuit board through the avoidance area;
the manufacturing method comprises the following steps:
s10: the segmented copper bar patch is arranged on the first printed circuit board;
s20: mounting the first printed circuit board to the heat dissipation portion;
s30: the highland barley paper is padded on the first printed circuit board, the second printed circuit board is installed on the first printed circuit board, and the support capacitor is inserted into the accommodating groove of the heat dissipation part;
S40: a sealing element and a waterproof breathable film are stuck on the inner wall of the shell;
s50: and mounting the housing and the heat dissipation part.
2. The method of manufacturing a controller according to claim 1, wherein the S10 further comprises a step of soldering the segmented copper bar to the first printed circuit board.
3. The method of manufacturing a controller according to claim 1, wherein the first printed circuit board is mounted to the heat dissipation portion by a first screw;
the S20 further includes a step of fixing the first conductive pillar and the second conductive pillar to the first printed circuit board by a second screw.
4. The method of manufacturing a controller according to claim 1, further comprising a shield provided on a side of the housing facing away from the power portion, the housing and the shield having a snap fit one with another with a snap fit, the shield and the housing being snap-fitted, and the housing and the heat dissipation portion being screw-connected;
the S50 further includes the step of clamping the shroud to the housing.
5. The method of manufacturing a controller according to claim 1, wherein the controller further comprises a first connector by which the heat dissipation portion, the first printed circuit board, and the second printed circuit board are connected;
The S10 further includes the step of mounting the first connector patch on the first printed circuit board and soldering.
6. A controller for controlling a motor, comprising: the controller comprises a shield, a shell, a control part, a power part and a heat radiating part which are sequentially stacked, wherein at least one of the shell and the shield is used for protecting an external cable of the controller;
the control part controls the power part to realize the control of the motor;
the power part comprises a first printed circuit board, a first conductive column and a second conductive column, the control part comprises a second printed circuit board, and the first conductive column and the second conductive column penetrate through the second printed circuit board;
the controller further comprises a support capacitor electrically connected with the first printed circuit board through the first conductive column and electrically connected with the second printed circuit board through the second conductive column;
the radiating part is positioned on one side of the first printed circuit board, which is far away from the second printed circuit board, an accommodating groove is formed in the radiating part, and one end of the supporting capacitor is positioned in the accommodating groove;
the first printed circuit board is provided with an avoidance area, and the other end of the supporting capacitor is connected with the second printed circuit board through the avoidance area.
7. The controller of claim 6, wherein the control portion further comprises a control circuit, a drive circuit and a second connector on the second printed circuit board, the control circuit and the drive circuit being electrically connected, the drive circuit being electrically connected with the second connector;
the power part also comprises a power tube and a first connector which are positioned on the first printed circuit board, the second printed circuit board is positioned on one side of the first printed circuit board where the power tube is positioned, and the second connector is electrically connected with the first connector;
the first connector is electrically connected with the power tube, the supporting capacitor is electrically connected with the second printed circuit board, and the supporting capacitor is positioned on one side, facing the first printed circuit board, of the second printed circuit board.
8. The controller of claim 7, further comprising a copper square and a copper bar for electrically connecting the support capacitor, wherein the copper square and the copper bar are electrically connected to the second printed circuit board, the copper square and the copper bar are located on a side of the second printed circuit board facing away from the support capacitor, and the copper square is directly opposite to the support capacitor.
9. The controller according to claim 7, wherein the power section further comprises at least two first bus terminals on the first printed circuit board, the control section comprises at least two second bus terminals on the second printed circuit board, and at least two second connectors, the first bus terminals are arranged in one-to-one correspondence with the second bus terminals, the first bus terminals are electrically connected with the second bus terminals, the first bus terminals and the second bus terminals are used for supplying power to the supporting capacitors, and the second connectors are used for fixing the first bus terminals and the second bus terminals.
10. A control as claimed in claim 6, wherein the inside of the housing is provided with a first seal, and the first seal surrounds a rim of the housing.
11. The controller according to claim 6, further comprising a waterproof breathable membrane attached to a side of the housing facing the control portion.
12. The controller of claim 6, wherein the shroud is snap-fit to the housing; or the shield is threadedly connected to the housing.
13. The controller of claim 6, further comprising signal terminals including a first signal terminal having a plurality of first pins and a second signal terminal having a plurality of second pins;
be equipped with the second sealing member on the first contact pin, the second sealing member have a plurality ofly with the first connecting hole that first contact pin corresponds, first connecting hole with the cooperation of pegging graft of first contact pin, be equipped with the third sealing member on the second contact pin, the third sealing member have a plurality ofly with the second connecting hole that the second contact pin corresponds, the second contact pin with the cooperation of pegging graft of second connecting hole.
14. The controller of claim 6, further comprising a fourth seal disposed about at least one of the first conductive post and the second conductive post.
15. An electric scooter, comprising:
a vehicle body;
the motor is used for driving the vehicle body to move; and
a controller as claimed in any one of claims 6 to 14, for controlling the motor.
CN202011402578.1A 2020-12-04 2020-12-04 Controller, manufacturing method thereof and electric scooter Active CN112722142B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011402578.1A CN112722142B (en) 2020-12-04 2020-12-04 Controller, manufacturing method thereof and electric scooter

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