CN109819603B - Main control unit assembly for a motor vehicle - Google Patents
Main control unit assembly for a motor vehicle Download PDFInfo
- Publication number
- CN109819603B CN109819603B CN201811382119.4A CN201811382119A CN109819603B CN 109819603 B CN109819603 B CN 109819603B CN 201811382119 A CN201811382119 A CN 201811382119A CN 109819603 B CN109819603 B CN 109819603B
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- plate
- control unit
- unit assembly
- spacer
- main control
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a main control unit assembly (230) that can be arranged in a housing (200) for mounting to a motor vehicle (100). The master control unit assembly (230) includes a plurality of boards (230A, 230B, 230C) capable of supporting one or more electronic components (235) thereon. The first plate (230A) and the second plate (230B) are arranged adjacent to each other, defining a Gap (GP) between them. The one or more electronic components (235) include at least one electronic component (235) mounted to at least one of the first board (230A) and the second board (230B), the at least one electronic component (235) being arranged at a space (GPS) defined by a Gap (GP). The master control unit assembly (230) provides a compact assembly (230) that provides a reliable master control unit.
Description
Technical Field
The present invention relates generally to motor vehicles and, more particularly, to a main control unit assembly housed on a motor vehicle.
Background
Typically, motor vehicles include an Internal Combustion (IC) engine and/or an electric motor, also referred to as a traction motor, for powering the vehicle. Typically, internal combustion engines are operated or controlled by purely mechanical or electronic systems or a combination of both. For example, an IC engine may be operated by a carburetor that is mechanical in nature or that uses a fuel injector system that typically requires electronic control. However, the traction motor as an electrical component needs to be controlled using an electronic main control device. Therefore, the main control device plays an important role in both a hybrid vehicle including an IC engine and a traction motor and an electric vehicle including only a traction motor.
Drawings
A detailed description of the present invention is described with reference to the accompanying drawings. The same reference numbers are used throughout the drawings to reference like features and components.
FIG. 1 illustrates a left side view of an exemplary vehicle according to an embodiment of the present invention.
Fig. 2 shows an isometric view of a housing according to an embodiment of the invention.
Fig. 3 shows a partially exploded view of a housing according to an embodiment of the invention.
FIG. 4 depicts a perspective view of the main control unit assembly according to the embodiment depicted in FIG. 3.
FIG. 5 depicts portions of the main control unit assembly according to the embodiment of FIG. 3.
FIG. 6 depicts another perspective view of the main control unit assembly according to the embodiment of FIG. 3.
Fig. 7 depicts a side view of a housing according to the embodiment as depicted in fig. 3.
List of reference numerals
100 vehicle
105 structural member
105A head pipe
105B Main frame
115 internal combustion engine
135 swing arm
120 traction motor
125 rear wheel
130 handle bar assembly
135 swing arm
140A front panel
140B leg shield
140C seat lower cover plate
140D side panel
145 floor
155A headlight
155B taillight
200 shell
205 chassis
205B base portion
205F airfoil section
205H hollow region
205G groove
205L locking part
210/215 cover board
220 fastener
225 master control unit
230 main control unit assembly
230A first plate
230B second plate
230C third plate
231 first port
232 second port
232A extension part
232 support part
232P tube needle
233 orifice
234\234A \234B connector
235 electronic component
235B main body
235C fin connection
235L supporting leg
236 first set of electronic components
237 second set of electronic components
240 cooling rod
240G groove
250 first distance
250A first end
250B second end
255\255A255B \ 255C spacer
260 multiple fins
GP gap
GPS space
Detailed Description
Typically, motor vehicles that include an electric motor that serves as one of the prime movers of the vehicle all need to be controlled and operated by a main control unit. For example, in the case of a hybrid vehicle, an electric motor and an Internal Combustion (IC) engine are used as prime movers that operate according to a request of a user. The electric motor and the IC engine may be operated independently, simultaneously, or one after the other, depending on the user's power or mileage requirements. The above functions are controlled by the main control unit.
Generally, an electric vehicle or a hybrid vehicle incorporating the above-described electric motor serving as a prime mover is provided with a high-capacity battery or a high-capacity battery pack for driving the electric motor. The main control unit is capable of converting a voltage from a high-capacity battery of a Direct Current (DC) voltage into an Alternating Current (AC) voltage for driving an electric motor such as a three-phase AC electric motor. The main control unit provides the required speed and torque by varying the current sent to the electric motor. The main control unit, which functions as an inverter, includes a plurality of Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) for switching a three-phase AC electric motor and for controlling current. Furthermore, the main control unit is able to charge the battery from the electric motor functioning in the generating mode, during which a high current close to 5-10 amperes is generated. Therefore, the main control unit, which operates at a high current for operating the electric motor and charging the battery, is heated. Also, the main control unit receives various signals from the user and status signals from various systems of the vehicle to evaluate the operation of the vehicle systems. For example, the main control unit receives various input signals from a user, such as a throttle input, a brake input, or an ignition input, as well as various signals from vehicle systems, such as position sensor data from an electric motor, a position sensor of a crankshaft, a battery state of charge (SoC), or other diagnostic data. Thus, the main control unit obtains key input signals from the user and the vehicle for reliable operation of the vehicle. Further, the main control unit includes a DC-DC converter unit for operating a vehicle load that operates at a lower voltage than the electric motor that operates as the prime mover. Further, the main control unit also controls ignition control in a vehicle that includes an IC engine. In addition, the main control unit performs additional operations such as signal conditioning, communication with a digital console, communication with a security system such as an ABS, and communication with a communication system such as a Global Positioning System (GPS). The main control circuit thus serves as the brain of the motor vehicle for controlling all operations of the vehicle.
Such a main control unit is therefore a very important system in a vehicle, which is securely and reliably accommodated in the motor vehicle. In particular, it is a challenge to securely and reliably house such a master control unit in a two-or three-wheeled vehicle, because such a vehicle is compact and has a non-occluded layout compared to a four-wheeled vehicle. Therefore, the main control unit should be securely encapsulated to avoid water or moisture ingress. Furthermore, the main control circuit operates at high currents carried by thick current carrying cables which are securely connected to avoid any short circuits or unsafe incidents such as fires. Furthermore, such main control units employed in vehicles are subject to vibrations during vehicle operation, which may affect the mounting of the main control unit and may lead to loosening or component failure. An additional challenge is to reduce the weight of the main control unit/cabinet in order to reduce the self weight of the unit to improve its secure installation.
In particular, the main control unit includes a plurality of semiconductors and other components that are soldered and embedded. In particular, the main control unit becomes more bulky and complex as it accommodates a number of components for processing power and signals. Such more bulky assemblies present challenges for accommodation in compact vehicles such as two-wheeled vehicles. Furthermore, the assembly fails completely if there is a lack of any individual component that requires replacement of the entire panel. Similarly, the assembly needs to be mounted on an elongated box which requires an additional cover plate covering the entire assembly. In addition, casting larger box components to accommodate such complex assemblies is also a challenge. In addition, securing such assemblies requires additional fasteners and mounts, which complicates the manufacturing process and makes assembly and disassembly challenging. Furthermore, the main control unit needs to cope with the high current carrying cables and information related signal cables which are carefully fixed. Furthermore, the current carrying cables are heated higher than the signal cables, so that the integrated routing of the cables results in poor heating. Failure of any cable connection may lead to safety related issues with the vehicle or to a vehicle shutdown.
It is therefore an object of the present invention to provide a compact and rigid main control unit assembly which can be compactly and securely mounted to a motor vehicle.
The invention is characterized in that the main control unit assembly comprises a plurality of printed circuit boards forming a physical circuit forming the main control unit. For simplicity, "Printed Circuit Board (PCB)" is interchangeably referred to as "board". The plurality of plates includes a first plate and a second plate disposed adjacent to each other defining a gap therebetween. A semiconductor component mounted to at least one of the first plate and the second plate is disposed at a gap formed between the first plate and the second plate. The term "gap" herein generally refers to the space formed between the faces of the plates. The circuit boards are arranged in layers. In other words, the plates are arranged one above the other. Thus, the assembly provides an optimal length.
The plurality of plates are physically/mechanically connected to each other by spacers that can provide the desired spacing between the components and serve as a support structure. Thus, the main control unit assembly may be formed as a single unit, with all semiconductor and electrical/electronic components selectively arranged on the board.
Characterized in that the main control unit assembly comprises at least one second port connectable to one or more signal cables and at least one first port connectable to a high current carrying cable connected to an electromagnetic motor or a traction motor to carry high currents. Characterised in that the second port and the first port are arranged separately to provide a clear separation between the components to achieve heat dissipation.
In one embodiment, the present invention provides a first board used as a signal board and a second board used as a power board. Thus, the first plate is provided with a second port arranged on one side of the main control unit assembly and positioned between the gap formed between the first plate and the second plate. Similarly, the first port is mounted on the second plate and is disposed on the other side of the assembly and is positioned between the voids/gaps formed between the plates. Characterized in that the ports are optimally distributed between the boards, thereby reducing the physical and electrical load on a single board.
Characterised in that, in a preferred embodiment, the first and second plates are arranged parallel to each other and the assembly is slidably mounted to the chassis of the housing. The plates substantially comprise a sheet-like cross-section with substantially two sides, and the plates arranged parallel to each other have a face of the first plate opposite a face of the second plate.
In one aspect, the pan may be extruded from a metal structure, preferably made of a thermally conductive material including aluminum. The chassis is provided with slots for slidably mounting the assembly as a single unit.
On the other hand, a plurality of detachable type connectors are used to electrically interconnect the boards with each other. For example, the first plate is provided with a convex portion of the connector and the first port is provided with a concave portion of the connector, so that electrical connection is established in an assembled state and the connector is easily disassembled.
In addition, the main control unit assembly includes a sensor interface unit referred to as a third board. The third plate is substantially smaller than the first and second plates. The third plate is disposed between the first plate and the second plate.
Furthermore, the third plate is preferably welded to one of the plates and is detachably coupled to the other plate using a detachable connector.
In one aspect, a power strip is provided with a plurality of semiconductor switching devices/electronic components including MOSFETs. The MOSFETs and other components are soldered to the bodies of the components disposed between the gaps formed between the plates. Thus, the main control unit assembly provides a compact assembly.
Characterized in that the semiconductor package comprises a heat sink connection portion connectable to the cooling rod. The assembly is capable of receiving an elongated cooling bar extending along at least a portion of the assembly. The cooling bars are preferably metal bars which are arranged between the gaps formed between the plates.
In one aspect, the spacers arranged between two adjacently arranged plates comprise at least three spacers. The first spacer is disposed proximate to the central portion of the plate. Further, the second spacer and the third spacer are arranged away from the center of the plate. In one embodiment, the second spacer and the third spacer are diagonally arranged at opposite ends. In another embodiment, the second and third spacers are arranged on the same side, wherein all three spacers form a triangular pattern. Thus, the spacer provides a structurally rigid plate assembly.
Another feature is that the plates are attached to the spacer using fasteners or bolts so that the plates can be disassembled. Thus, the main control unit assembly may be slidably removed from the chassis, and each board may be electrically and mechanically detached.
Advantageously, the main control unit assembly provides a compact assembly arranged in the chassis, and the one or more openings of the chassis are covered by a cover plate providing a waterproof and moisture tight seal.
The foregoing and other advantages of the invention will be described in more detail in conjunction with the drawings in the following description.
Fig. 1 shows a left side view of an exemplary motor vehicle 100 according to an embodiment of the invention. The vehicle 100 is shown having a structural member 105. In the present embodiment, the structural member is a striding type structural member 105 including a head pipe 105A and a main frame 105B extending rearward and downward from a front portion of the head pipe 105A. The main frame 105B extends rearward to the rear of the vehicle 100.
The vehicle 100 includes an internal combustion engine 115 connected to the structural member 105. In the present embodiment, the engine 115A is mounted on a swing arm 135, and the swing arm 135 is swingably connected to the main frame 105B using a toggle link. Vehicle 100 also includes a traction motor 120, which is another prime mover. In a preferred embodiment, the traction motor 120 is a hub mounted to the rear wheel 125. The front wheel 110 is rotatably supported by the structural member 105. The front wheels 110 are connected to a handlebar assembly 130, which is capable of steering the vehicle 100.
The vehicle 100 includes a high capacity on-board battery (not shown) that drives the traction motor 120. The high-capacity battery may be disposed at the front or rear of the vehicle 100. The high capacity battery is supported by a structural member 105 and the vehicle 100 includes a plurality of body panels that are mounted to the structural member and cover various components of the vehicle 100. The plurality of panels includes a front panel 140A, a leg shield 140B, an under seat cover 140C, and left and right side panels 140D. The glove box may be mounted to the leg shield 140B.
The floor 145 is provided at a stride portion defined by the main frame 105B. The seat assembly 150 is disposed rearward of the see-through portion, and is mounted to the main frame 105B. One or more suspensions connect the wheels 110, 125 to the vehicle 100 and provide a comfortable ride. The vehicle 100 includes a plurality of electrical and electronic components including a headlight 155A, a tail light 155B, a starter motor (not shown), a horn, and the like. Further, the vehicle 100 includes a main control unit disposed in the housing 200.
FIG. 2 depicts a perspective view of a housing for a master control unit according to an embodiment of the invention. The housing 200 includes a chassis 205 and one or more cover plates 210, 215. The chassis 205 is made of a rigid material including metal. In the present embodiment, the bottom plate 205 is made of aluminum (Al) or an alloy having aluminum as a main element, and is preferably an extruded member, which is easier to manufacture than casting. The cover plates 210, 215 can seal the open portion of the chassis 205 with a plurality of fasteners 220. The cover plates 210, 215 are adapted to receive the cable mounting portions.
In the depicted embodiment, the chassis 205 includes a base portion 205B and a flap portion 205F. The flap portion 205F extends to a side other than the base portion 205B. In other words, the flap portion 205F extends to three sides of the chassis 205 including four sides, and the base portion 205B forms a fourth side. The base portion 205B protrudes outward and is provided with a mounting aperture 220 for securing the housing 200 to the structural member 105 of the vehicle 100. The housing 200 can securely house a main control unit 225 (shown in fig. 3) therein and restrict the entry of dust, water, moisture, etc.
Fig. 3 depicts a perspective view of a chassis with a main control unit installed according to the embodiment of fig. 2. The chassis 205 in this embodiment has a hollow region 205H with an opening on either side. The main control unit 225 is an electronic unit including a plurality of Printed Circuit Boards (PCBs) 230A, 230B, the plurality of Printed Circuit Boards (PCBs) 230A, 230B supporting switching/electronic components 235 such as Metal Oxide Semiconductor Field Effect Transistors (MOSFETs), Bipolar Junction Transistors (BJTs) or other semiconductor components. Furthermore, assembly 230 includes cooling rods 240 for thermal contact of electronic components 235 with chassis 205. The printed circuit boards 230A and 230B are collectively referred to as a main control unit assembly 230. The main control unit assembly 230 includes connectors 231, 232 extending outwardly from the housing 200 to enable connection of wires/ports. The main control unit assembly 230 is slidably mounted to the chassis 205. The chassis 205 is provided with a plurality of slots symmetrically disposed inside the chassis 205 and orthogonal to the receiving direction of the main control unit assembly 230.
FIG. 4 depicts a perspective view of a main control unit assembly according to an embodiment of the present invention. The main control unit assembly 230 includes the physical circuitry that forms the main control unit 225. The main control unit assembly includes a first board 230A and a second board 230B, the first board 230A and the second board 230B being physically connected to each other by spacers 255A, 255B and separated by a gap GP by the spacers 255A, 255B, thereby forming a space GPs between the boards 230A, 230B. The first plate 230A is provided with a second port 232 that is capable of receiving one or more signal cables. Similarly, the second plate 230B is provided with one or more first ports 231 secured thereto, and the first ports 231 can be connected to high current carrying cables that are connected to an electromagnetic motor or a traction motor that carries the high current driving it, or the high current carrying cables receive power from the traction motor. The main control unit assembly 230, which is slidably mounted to the chassis 205, has a plate with one face facing the inside of the chassis 205 and the other face facing away from the inside of the chassis 205. A board, usually a Printed Circuit Board (PCB), is often a thin sheet with only two faces. In this embodiment, the second port 232 is a pin connector and the first port 231 is a power stud. In one embodiment, the second port is a signal port and the first port is a power port.
Further, the second board 230B is provided with a plurality of electronic components soldered thereon (as shown in fig. 5). The electronic components 235 include a body, contact legs (source, drain and gate), and a heat spreader connection. The electronic component 235 is soldered to the second board 230B by passing the legs through pads (not shown) provided on the board 230B. The pads provide vias for mounting MOSFET-like components and provide electrical contacts. The individual pads are connected to each other in a defined pattern by traces disposed on board 230B to establish electrical connections between the components. Furthermore, in one embodiment, the heat sink connection portions of the electronic components are connected to a cooling bar that thermally connects and subsequently connects all of the electronic components to the chassis for higher heat dissipation. The cooling rod and the electronic component are fixed using a bolt or a metal clip, serving as an elastic member.
The main control unit assembly 230 includes a processing unit (not shown) that is integrally manufactured or soldered as a separate unit. A second port 232 secured to one of the first plate 230A and the second plate 230B is disposed at the space GPS formed between the first plate 230A and the second plate 230B. Similarly, the first port 231 is also disposed/housed at the space GPS formed between the first plate 230A and the second plate 230B (as shown in fig. 4), and is fixed to the other of the first plate 230A and the second plate 230B. Further, the circuit assembly 230 includes a sensor interface board 230C, referred to as a third board 230C, disposed at the space GPS between the first board 230A and the second board 230B. Further, the third plate 230C is fixed to one of the plates by welding or the like, wherein in the present embodiment, the third plate 230C is welded to the second plate 230B. Third plate 230C includes connector tubing needles that may be removably connected to receiver members disposed on first plate 230A. Thus, in the assembled state, the third plate 230C (shown in fig. 4) makes electrical contact between the first plate 230A and the second plate 230B. Further, data from various sensors disposed on the vehicle 100 is communicatively coupled to the third board 230C through the second port 232. In addition, the main control unit assembly 230 includes connectors 234, which include male and female connectors that are welded to the first and second plates 230A and 230B, respectively, and vice versa. Thus, the main control unit assembly 230 is disassembled/disassembled into the first and second plates 230A, 230B by removing the fasteners holding the spacers and then disassembling the plates 230A, 230B by disassembling the connectors 234. Either circuit board 230A or circuit board 230B may be individually repaired, or replaced.
Fig. 5 depicts a partially exploded view of the second plate 230B, according to an embodiment of the invention. A plurality of electronic components are soldered to board 230B by a plurality of standoffs 235L. The electronic component 235 includes a heat sink connecting portion 235C, the heat sink connecting portion 235C being arranged in thermal contact with the cooling rod 240 (shown in fig. 7), the cooling rod 240 being arranged adjacent thereto (shown in fig. 3). For example, according to the depicted layout of electronic components, a first cooling bar is thermally connected to a first set of electronic components 236 disposed toward one side of board 230B, and a second cooling bar is thermally connected to a second set of electronic components 237 disposed toward the other side of board 230B. The cooling bar is preferably a metal bar that extends along the length of the plate and is lockingly arranged with the chassis 205.
The first port 231 is fixed at one end to the second plate 230B, wherein the second plate 230B is provided with a plurality of apertures 233 to fix the first port 231 thereto. Further, electronic components 235 are selectively arranged on board 230B, with a first set of electronic components 236 arranged at a first distance 250 from the edge along the length of board 230B to accommodate cooling bar 240. Further, the first group of electronic components 236 is arranged with the heat sink connecting portion 235C facing outward. The cooling rod 240 is housed at the space GPS, and in particular at the portion formed as a result of the positioning of the first set of electronic components at the first distance 250. Similarly, the second set of electronic components 237 is disposed a second distance from the edge to receive another cooling rod thereat and in contact with the heat sink connection portions of the second set of electronic components 237. Further, the first set of electronic components 236 and the second set of electronic components 237 are arranged along the length of the second plate 230B, thereby accommodating a longer cooling bar 240 along the length of the main control unit assembly 230. The third plate 230C is compactly housed between the first set of electronic components 236 and the second set of electronic components 235B.
FIG. 6 depicts another perspective view of the main control unit assembly according to the embodiment of FIG. 4. The main control unit assembly 230 includes a first plate 230A and a second plate 230B having a rectangular shape. In this embodiment, plates 230A, 230B are longer than they are wide. The second port 232 is disposed on one side about the length of the circuit assembly 230, and the first port 231 (shown in fig. 4) is disposed on a side opposite the side on which the second port 232 is disposed. Thus, the second port 232 carrying critical and sensitive vehicle-related information is arranged remote from the high current-carrying first port 231, thereby avoiding any interference with important vehicle-related information transmitted therethrough. Furthermore, any interference caused by the high current carrying cable does not affect the information carrying of the second port. In one embodiment, second port 232 includes a plurality of cannula pins 232P, a support portion 232S, and an extension portion 232A. The support portion 232S can additionally support the first plate 230A and the second plate 232B. A stylet 232P extends from the second port 232 toward the first plate 230A and is welded thereto. In addition, the connectors 234A, 234B are arranged in a distributed manner to provide connection feasibility and structural strength. In the present embodiment, the first and second sets of connectors 234A and 234B are disposed on either side of the first spacer 255A.
The main control unit assembly 230 includes a first spacer 255A disposed substantially near the center of the main control unit assembly 230. Further, the second spacer 255B and the third spacer 255C are disposed away from the center of the main control unit assembly 230. In the present embodiment, the second spacer 255B and the third spacer 255C are disposed near the position of the first port 231. However, in another embodiment, the second spacer 255B is disposed on a side away from the center and the third spacer 255C is disposed diagonally from the position of the second spacer 255B. In the depicted embodiment, spacers 255A, 255B, 255C are placed in a triangular pattern. Spacers 255A, 255B, 255C are fastened to plates 230A, 230B by bolts and spring washers, nylon washers placed on plates 230A/230B. The spacers 255A, 255B, 255C have internal threads provided at least at the end portions so as to be able to be fastened by bolts (not shown).
Fig. 7 depicts a longitudinal view of the main control unit assembly mounted to the chassis of the housing 200 according to the embodiment of fig. 3. The main control unit assembly 230 includes a first board 230A and a second board 230B connected by a spacer 255 (collectively). The chassis 205 includes a plurality of grooves 205G, the grooves 205G being slots that enable sliding mounting of the plates 230A, 230B. The bottom plate 205 is an extruded member in which a hollow portion 205H, a plurality of tabs 260, a recess 205G for receiving the plates 230A and 230B, and a locking portion 205L are formed. The inner side of the chassis 205 is provided with a locking portion 205L, and the locking portion 205L is a concave portion integrally formed by pressing. In the present embodiment, the locking portion 205L is a negative dovetail-shaped cross-section extending in the receiving direction of the main control unit assembly 230. Similarly, cooling rods 240 (also shown in fig. 3) connected to the electronic components are disposed between the first plate 230A and the second plate 230B and substantially at the extreme ends. The outside of the cooling bar 240 is provided with a dovetail-shaped cross-section, which is complementary to the locking portion 205L provided on the chassis 205. During the slidable action of the main control unit assembly 230, the cooling rod 240 engages the locking portion 205L of the chassis 205. This brings the electronic components into thermal contact with the chassis 205 provided with a plurality of fins 260. Thus, the fins 260 are disposed on one or more sides of the chassis 205, whereby the electronic components are effectively cooled.
Many modifications and variations of the present invention are possible in light of the claims herein. It should be understood that aspects of the embodiments are not necessarily limited to the features described herein.
Claims (13)
1. A main control unit assembly (230) disposable in a housing (200) for mounting to a motor vehicle (100), the main control unit assembly (230) comprising:
a plurality of boards (230A, 230B, 230C) capable of supporting one or more electronic components (235),
the plurality of plates (230A, 230B, 230C) comprising a first plate (230A), a second plate (230B), and a third plate (230C),
the first plate (230A) is configured to act as a signal plate and the second plate (230B) is configured to act as a power plate,
wherein the first plate (230A) and the second plate (230B) are arranged adjacent to each other in a vertical direction, a Gap (GP) being defined between the first plate (230A) and the second plate (230B),
wherein the third plate (230C) is disposed between the first plate (230A) and the second plate (230B), and
the one or more electronic components (235) are mounted to one of the first board (230A) and the second board (230B) within a space (GPS) defined by the Gap (GP),
wherein one of the first plate (230A) and the second plate (230B) is electrically coupled with the third plate (230C), and
wherein the first plate (230A), the second plate (230B), and the third plate (230C) are electrically connected to each other by one or more connectors (234).
2. The main control unit assembly (230) of claim 1, wherein the first plate (230A) and the second plate (230B) are arranged parallel to each other and the first plate (230A) and the second plate (230B) are connected to each other by using one or more spacers (255A, 255B) arranged between the first plate (230A) and the second plate (230B).
3. The master control unit assembly (230) of claim 1, wherein the master control unit assembly (230) comprises one or more ports (231, 232), and the one or more ports (231, 232) comprise a first port (232) and a second port (231), the first port (232) being connected to one of the first plate (230A) and the second plate (230B), and the second port (231) being connected to the other of the first plate (230A) and the second plate (230B).
4. The master control unit assembly (230) of claim 3, wherein the first port (232) is disposed on one side of the master control unit assembly (230) and the second port (231) is disposed on another side of the master control unit assembly (230), wherein the one or more ports (231, 232) comprise a signal port, a power port, or the like.
5. The main control unit assembly (230) of claim 1, wherein the first board (230A) and the second board (230B) have a flat profile having two planes, wherein the space (GPS) is formed between the planes of the first board (230A) and the second board (230B).
6. The master control cell assembly (230) of claim 2, wherein the spacers (255A, 255B, 255C) comprise a first spacer (255A), a second spacer (255B), and a third spacer (255C), wherein the first spacer (255A) is disposed proximate a central portion of the master control cell assembly (230), and the second spacer (255B) and the third spacer (255C) are disposed distal from the central portion of the master control cell assembly (230).
7. The master control cell assembly (230) of claim 6, wherein the second spacer (255B) and the third spacer (255B) are disposed on opposite ends of different sides of the master control cell assembly (230), whereby the second spacer (255B), the first spacer (225A), and the third spacer (225C) form a diagonal orientation.
8. The master control unit assembly (230) of claim 6, wherein the first spacer (255A), the second spacer (255B), and the third spacer (255C) are disposed on opposite ends of the same side of the master control unit assembly (230), whereby the second spacer (255B), the first spacer (255A), and the third spacer (255C) form a triangular orientation.
9. The main control unit assembly (230) of claim 1, wherein the one or more connectors (234) are removably attached to the first plate (230A) and the second plate (230B), and the one or more connectors (234) are disposed at the space (GPS).
10. The master control unit assembly (230) of claim 1, wherein the third board (230C) functions as a sensor information receiving board (230C), wherein data from one or more sensors disposed on the motor vehicle (100) is communicatively coupled to the third board (230C) through a second port (232).
11. The main control unit assembly (230) of claim 1, wherein the electronic components (235) are mounted to one of the first and second boards (230A, 230B), the electronic components (235) being selectively connected in a thermally connected manner to one or more cooling rods (240), the cooling rods (240) being arranged within the space (GPS) and positioned at an end portion of the main control unit assembly (230) such that the cooling rods (240) are thermally contactable with a chassis (205) surrounding at least a portion of the main control unit assembly (230).
12. The main control unit assembly (230) of claim 11, wherein the main control unit assembly (230) is slidably mounted to a chassis (205) of the housing (200) by one or more plates (230A, 230B) and by one or more cooling rods (240).
13. The master control unit assembly (230) of claim 1, wherein the one or more electronic components (235) include a first set of electronic components (236) arranged along a length of the second board (230B) of the plurality of boards (230A, 230B, 230C), and the first set of electronic components (236) is positioned a first distance (250) from an edge of the second board (230B) to accommodate a cooling bar (240), and the first set of electronic components (236) is arranged with a heat sink connection portion (235C), the heat sink connection portion (235C) facing outward to be in thermal contact with the cooling bar (240).
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WO2020194327A1 (en) * | 2019-03-22 | 2020-10-01 | Tvs Motor Company Limited | A circuit assembly and a positioning member thereof |
US20230344060A1 (en) * | 2020-04-01 | 2023-10-26 | Tvs Motor Company Limited | A battery block |
Citations (3)
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CN102934528A (en) * | 2010-06-09 | 2013-02-13 | 京瓷株式会社 | Flow channel member, heat exchanger using same, and electronic component device |
WO2017031596A1 (en) * | 2015-08-27 | 2017-03-02 | Dana Canada Corporation | Heat exchanger with plate-like conduits for cooling electronic components |
US9668379B1 (en) * | 2016-04-14 | 2017-05-30 | Te Connectivity Corporation | Heat spreader for a caged electrical connector assembly |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102934528A (en) * | 2010-06-09 | 2013-02-13 | 京瓷株式会社 | Flow channel member, heat exchanger using same, and electronic component device |
WO2017031596A1 (en) * | 2015-08-27 | 2017-03-02 | Dana Canada Corporation | Heat exchanger with plate-like conduits for cooling electronic components |
US9668379B1 (en) * | 2016-04-14 | 2017-05-30 | Te Connectivity Corporation | Heat spreader for a caged electrical connector assembly |
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