CN102444526A - Engine control device - Google Patents

Engine control device Download PDF

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Publication number
CN102444526A
CN102444526A CN2011103020056A CN201110302005A CN102444526A CN 102444526 A CN102444526 A CN 102444526A CN 2011103020056 A CN2011103020056 A CN 2011103020056A CN 201110302005 A CN201110302005 A CN 201110302005A CN 102444526 A CN102444526 A CN 102444526A
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CN
China
Prior art keywords
housing
circuit substrate
controlling unit
engine controlling
electrode
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Granted
Application number
CN2011103020056A
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Chinese (zh)
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CN102444526B (en
Inventor
武田裕一
竹中正彦
山本胜美
猪濑幸司
杉生大辅
竹田健一
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication of CN102444526A publication Critical patent/CN102444526A/en
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Publication of CN102444526B publication Critical patent/CN102444526B/en
Expired - Fee Related legal-status Critical Current
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  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

The present invention provides an engine control device. The invention provides an ECU with excellent water resistance and excellent vibration resistance. The ECU (30) comprises a circuit substrate (5) and a housing (18). The circuit substrate (5) is supported through a non-contact floating state relative to the housing (18). The supporting component is composed of elastic components (12) such as rubber and helical spring. The elastic components (12) are formed through projecting outwards from the side surface of the circuit substrate (5), and are supported by an inner wall surface of the housing (18). The housing (18) is provided with a wire harness passing-through hole (32). A sealing member (33) is provided between the wire harness passing-through hole (32) and the wire harness (29) which passes through the wire harness passing-through hole (32). The circuit substrate (5) is provided with an electrode (16) which is used for connecting outside of the wire harness (29). The surface of the circuit substrate is provided with a resin molded part besides the part which is provided with the electrode (16) and the part with the elastic component (12).

Description

Engine controlling unit
Technical field
The present invention relates to engine controlling unit, especially relate to the engine control electronic equipment that can the water resistence and the resistance to vibration of the circuit substrate that electronic unit is installed be improved simultaneously.
Background technique
Motor Vehicle or two-wheeled etc. in be equipped with engine controlling unit (below, be called " ECU ") as the electronic equipment that is used for controlling combustion engine (motor).ECU has circuit substrate, and this circuit substrate is equipped with the circuit that comprises electronic unit.In patent documentation 1, proposing has following such structure; Promptly; The motor that under the environment that applies high low temperature repeatedly, uses with ignition mechanism in; In order to prevent component to be carried out sneak into the resin fillers that is used to relax stress in the molded sealing resin because of the thermal expansion coefficient of circuit substrate and component and sealing resin different joining portion such as solder bonds portion or wire-bonded under the effect of the thermal stress that circuit substrate and component produce comes off or cracks.
[patent documentation 1] TOHKEMY 2002-235644 communique
Yet circuit substrate requires water resistence and resistance to vibration.According to the structure that patent documentation 1 is put down in writing,, resistance to vibration and water resistence have therefore been considered owing to utilize sealing resin to cover circuit substrate.Yet, in structure in the past,, think that therefore weight increases because the amount of Embedding Material increases, cost also raises.And, do not do sufficient consideration for resistance to vibration.Especially in two-wheeled, compare with four-wheel wagon such as passenger car, can be subjected to more harsh environmental conditions aspect the vibration of vehicle body, so water resistence is from needless to say, also have to take into full account in resistance to vibration and cost aspect.
Summary of the invention
The object of the present invention is to provide and a kind ofly realize water resistence and resistance to vibration simultaneously, and have the ECU of structure that can cost degradation.
Be used to realize that the present invention of above-mentioned purpose is engine controlling unit; It comprises: it comprises circuit substrate and housing; This circuit substrate is provided with the outside electrode that connects usefulness with the mode of exposing on the surface; And apply resin molded and form roughly cuboid at the whole face except that this electrode; This housing is accommodated said circuit substrate, and first of said engine controlling unit is characterised in that said circuit substrate is to have the space and to be contained in said housing with respect to the non-contacting mode of said housing; And said engine controlling unit possesses from the side of said circuit substrate towards the resilient member of the tab-like one-tenth of foreign side, and the end of said resilient member is by the internal face supporting of said housing.
In addition, of the present invention second is characterised in that, the end of said resilient member is embedded in the supporting recess in the internal face formation of said housing.
In addition, the of the present invention the 3rd is characterised in that, be formed with on the said housing connect inside and outside this housing and the wire harness that forms through the hole, between said wire harness is through hole and the wire harness through this wire harness distribution through the hole, be provided with Sealing.
In addition, the of the present invention the 4th is characterised in that, said electrode is for connecting the electrode of said wire harness, and the part except the part that is provided with said electrode and the part that is formed with said resilient member in the surface of said circuit substrate is applied with said resin molded portion.
In addition, the of the present invention the 5th is characterised in that, is equipped with at a sidepiece of said housing and outside the connection use Coupler, and be provided with from this Coupler and prolong and be connected the lead of the electrode connection of usefulness with the outside that is provided with at said circuit substrate.
In addition, the of the present invention the 6th is characterised in that, said housing possesses housing body and is covered in the lid of housing body, and said resilient member is by involutory clamping of said housing body and said lid.
In addition, the of the present invention the 7th is characterised in that, said resilient member is a column or tabular, and the 8th is characterised in that, said resilient member is made up of rubber or helical spring.
In addition, the of the present invention the 9th is characterised in that, the housing of accommodating said circuit substrate is the ECU housing of installing in the closure district of motor, and said circuit substrate is bearing in the said housing with floating state through said resilient member.
In addition; The of the present invention the tenth is characterised in that; Said circuit substrate has said electrode respectively with first and second of said end face quadrature; Said engine controlling unit possesses protuberance, and said protuberance engages with said housing, and is limited in moving on the direction with said end face quadrature with respect to this housing.
In addition; The of the present invention the 11 is characterised in that; Said engine controlling unit possesses the ECU cover; This ECU cover covers the end face of said housing, and has the rib that extends to case side, the wall section that on said housing, is provided with and and the supporting member that extends abreast of this wall section between chimeric said rib in the gap that forms.
In addition, the of the present invention the 12 is characterised in that, is applied with said resin molded position and also removes said protuberance.
In addition, the of the present invention the 13 is characterised in that, the ECU with above-mentioned the first to the 12 characteristic is equipped on two-wheeled, and is applicable to that this two-wheeled driving uses motor.
[invention effect]
According to the present invention with the first to the 13 characteristic, circuit substrate is molded, and is contained in housing, therefore realizes dual waterproof.And circuit substrate passes through supported in the internal face of housing, so the circuit substrate main body is in and the discontiguous floating state of housing.Therefore, the vibration that applies to housing from the outside can not be directly passed to circuit substrate and declined by being subtracted, so the element on the substrate can not be applied in excessive stress, and improves durability.And, owing to be difficult to, therefore for example near motor, wait the big position of vibration also can dispose the degrees of freedom increase of the layout of ECU etc. to the circuit substrate transmitting vibrations.And, owing between housing and circuit substrate, be provided with space (air layer), therefore can reduce the influence that outside air temperature directly brings circuit substrate, can also improve heat resistance.
According to the present invention, realize circuit substrate and outside being electrically connected easily, and can obtain waterproofing effect through sealing simultaneously with the 3rd characteristic.According to the present invention with the 5th characteristic, can provide a kind of can carry out circuit substrate and the outside one-piece type ECU of the Coupler that is electrically connected through Coupler.
According to the present invention, under the state of the lid of opening housing, resilient member is remained in housing body, and the side closes the lid from it, thereby can circuit substrate be supported on housing, so assembling operation property improves via resilient member with the 6th characteristic.
According to the present invention, can resilient member be formed simple shape and processing easily with the 7th characteristic.According to the present invention with the 8th characteristic, the member that can form through the material of both having been deposited by rubber or helical spring etc. supports circuit substrate.
According to the present invention with the 9th characteristic; Even circuit substrate is contained under the situation in the housing of the closure district installation of transmitting from the vibration of motor; Also can relax transfer of vibration, therefore can guarantee the resistance to vibration of circuit substrate through resilient member.
According to the present invention with the tenth characteristic, have in the circuit substrate of electrode on the two sides, the terminal that can reduce electrode and the parts that are electrically connected with this electrode butt is because vibration and the degree of mutual friction mutually, thereby can improve the wearability of electrode and terminal.
According to the present invention with the 11 characteristic, after the ECU cover is installed on housing, make supporting member not to crooked leeway, top through rib, therefore can suppress the degree that relative displacement takes place circuit substrate and ECU cover.Therefore, can prevent to be arranged at the situation of the relative position of the electrode of circuit substrate and the terminal that is connected with the outside, from preventing electrode and terminal mutual friction and the situation of wearing and tearing mutually because of the vibration changing of the relative positions.And because the ECU cover becomes chimeric status with housing, so the intensity of housing also promotes.
According to the present invention, can be applicable to than big two-wheeled of four-wheel wagon vibration, and guarantee water resistence and the resistance to vibration of ECU with the 13 characteristic.
Description of drawings
Fig. 1 is the stereogram of the circuit substrate of the ECU that relates to of an expression mode of execution of the present invention.
Fig. 2 is the sectional view of the engagement portion of expression protuberance and housing.
Fig. 3 is the stereogram of the circuit substrate of the ECU that relates to of expression second mode of execution of the present invention.
Fig. 4 is the sectional view of the engagement portion of expression protuberance and housing.
Fig. 5 is the sectional view that contains the ECU of circuit substrate.
Fig. 6 is the stereogram that is connected with the ECU of wire harness.
Fig. 7 is the sectional view of ECU.
Fig. 8 is the stereogram of the ECU that relates to of variation.
Fig. 9 is the sectional view of the ECU that relates to of variation.
Figure 10 is that the major component sectional view of helical spring as the circuit substrate of the example of protuberance used in expression.
Figure 11 is two-wheeled 1 the side view that has been suitable for throttle valve device that the ECU that a mode of execution of the present invention relates to is installed.
Figure 12 is the enlarged view of throttle valve device part.
Figure 13 is the major component sectional view with throttle valve device of the ECU that comprises circuit substrate.
Symbol description:
5 ... Circuit substrate
12 ... Protuberance
18 ... Housing
14 ... Throttler valve
16 ... Electrode
22 ... Tabular protuberance
28 ... Mold
29 ... Wire harness
30…ECU
32 ... Wire harness passes through the hole
33 ... Sealing
34 ... Coupler
181,182 ... The supporting recess
Embodiment
Below, with reference to accompanying drawing, a mode of execution of the present invention is described.Figure 11 is two-wheeled 1 the side view that the throttle valve device that the ECU that a mode of execution of the present invention relates to is installed has been carried out being suitable for.And Figure 12 is the enlarged view of the throttle valve device part of Figure 11.Be equipped with the head pipe 2 of front fork 4 supportings in the front side end of main car frame 3 for turning to.Be equipped with that pivot plate 62, front end are welded in main car frame 3 and the pairing left and right seat rail 17 that extends to the back upper place, the pairing left and right strengthened frame 21 that links between with the intermediate portion of seat rail 17 and pivot plate 20 in the rearward end of the main car frame 3 that extends to the rear lower side.
Axle is supported with front-wheel WF in the lower end of front fork 4, and linking on the top of front fork 4 has bar-shaped bogie car 63.Front mudguard 6 above front fork 4 is supported with covering front-wheel WF.Below main car frame 3, dispose cylinder-bore axis and be partial to the motor E of the single cylinder of water-cooled of front upper place slightly.Motor E utilizes hanger plank 64 supportings of pivot plate 62 and the intermediate portion that is arranged on main car frame 3.
The front end of swing arm 66 is supported to swinging up and down by the pivot 65 that connects pivot plate 62 along the overall width direction.Transmit via chain 23 motor E output trailing wheel WR by the rear end axle supporting of swing arm 66 be rotation freely.Between seat rail 17 and swing arm 66, be provided with back shock absorber 19.Between pairing left and right seat rail 17, be equipped with fuel tank 67, be equipped with the containing box 68 that can carry out access through the seat 15 of opening open and close type in vehicle body the place ahead of fuel tank 67.The top, rear portion of trailing wheel WR is covered by rear mudguard 69.
Upper portion side wall in the cylinder head 11 of motor E is connected with throttle valve device 10 via sucking pipe.The ECU that after throttle valve device 10 is equipped with, states.At sucking pipe the Fuelinjection nozzle 27 (with reference to Figure 12) towards the intakeport burner oil of cylinder head 11 is installed midway.The upstream extremity of throttle valve device 10 is connected with air filter case 7.Draw outlet pipe 71 from the bottom of motor E.
Adjusting is supported to rotating by throttle valve device 10 to the throttler valve of the butterfly type of the air quantity of motor E supply, and volume hangs with closure wire 141 on the pulley 142 of configuration that links to each other with this throttler valve.
At main car frame 3 the plastic vehicle body cover 13 that part, throttle valve device 10 and air filter case 7 to motor E cover is installed.Be equipped with the leg guard 8 that covers passenger's shank from the place ahead in vehicle body the place ahead of vehicle body cover 13.On vehicle body cover 13, can carry out the adjusting of throttle valve device 10 and divide into the side after a while of putting in the vehicle body side-looking at throttle valve device 10 from the opening portion 70 of the heat radiation of motor E.
Fig. 1 is that the main body of ECU is the stereogram of ECU circuit substrate.Circuit substrate 5 is the roughly cuboids of face with face, longitudinal side 53 and opposition side thereof of surface 51 and face (back side), horizontal side 52 and the opposition side thereof of opposition side.Need to prove; Circuit substrate 5 by the base main body of rectangular flat, be installed in parts, covered substrate main body and parts on the base main body resin molded and constitute; Therefore it is concavo-convex that outer shape has corresponding some of height with parts; But, and describe as cuboid roughly for the ease of explanation.
Erect respectively on four faces except that the surface 51 and the back side in six surfaces of this circuit substrate 5 and be provided with columned protuberance 12.Protuberance 12 is made up of elastic material (normally rubber) and engages with circuit substrate 5.The surface of circuit substrate 5 is formed by resin molded except the part that is provided with protuberance 12.That is, circuit substrate 5 possesses water resistence through resin molded.Circuit substrate 5 can have a plurality of electrodes 16 of rat tail on surface 51, and wherein this wire harness is used to carry out mounted component and outside being electrically connected on the base main body of circuit substrate 5.Of the back, the front end of protuberance 12 is by the ECU housing of accommodating circuit substrate 5 (below, abbreviate " housing " as) supporting.
Fig. 2 is the sectional view of the engagement portion of expression protuberance 12 and housing 18.Housing 18 has supporting recess 181 in inner surface side, and the front end intercalation of protuberance 12 is in this supporting recess 181.
Protuberance 12 also can be taked other shapes as long as formed by elastic material.For example, also can not cylinder but polygon prism (for example, quadrangular) can also be tabular.
Fig. 3 is the stereogram that the variation of circuit substrate relates to, the identical or equal part of the symbolic representation identical with Fig. 1.Circuit substrate 5 possesses tabular protuberance 22 on these four faces of face of face 52,53 and its opposition side.Protuberance 22 can by tabular be that the rubber of sheet constitutes.
Fig. 4 is the sectional view of the engagement portion of expression protuberance 22 and housing 18.It is the supporting recess 182 of the shape of edge portion that housing 18 has the end that is suitable for accommodating tabular protuberance 22 in inner surface side.
Fig. 5 is the sectional view that circuit substrate is housed in the ECU of the state in the housing.In Fig. 5, circuit substrate 5 possesses tabular protuberance 22, and ECU30 comprises housing body 183 and lid 184.Be provided with the stepped part 24 that is used to accommodate protuberance 22 in housing body 183, support the lower surface 22a of protuberance 22 through this stepped part 24.And lid 184 is covered in housing body 183, and the upper surface 22b of protuberance 22 is covered by lid 184.Lid 184 for example is bonded with each other through molten applying with housing body 183.In this example, through covering 184 and form the supporting recess 182 of protuberance 22 in the stepped part 24 that housing body 183 is provided with.As shown in Figure 5, circuit substrate 5 remains in housing 18 with the state with gap except protuberance 22, thereby does not contact with the internal surface of housing 18.That is, circuit substrate 5 has space (air layer) A and floats in housing 18.
Fig. 6 is the stereogram that is connected with the ECU of wire harness, and Fig. 7 is the sectional view of ECU shown in Figure 6.In Fig. 6, housing 18 possesses on the face of side 26 and its opposition side and is used for supporting member 25 that ECU30 is installed to motor E.In Fig. 7, apply resin molded 28 the electrode 16 that connects usefulness circuit substrate 5 lip-deep except the outside and the protuberance 22.Be connected with each lead or the signaling line of wire harness 29 at electrode 16, wire harness 29 is drawn to the outside through hole 32 through the wire harness that the side 31 at housing 18 forms.Be provided with the cylindrical member (safety cover) 33 that constitutes by rubber at wire harness through hole 32, and formation wire harness 31 and wire harness are through the waterproof seal between the hole 32.In example shown in Figure 7, protuberance 22 is not arranged on a side of drawing wire harness 29.That is, the protuberance 22 of circuit substrate 5 through three positions has space (air layer) A and state support to float in housing 18.
So, protuberance 12 and 22 need not all to be provided with in four sides of circuit substrate 5, as long as be arranged at least three sides.And; With the mode that the side locations to tabular protuberance 22 limits, promptly is not subjected to displacement in its face with tabular protuberance 22 size shape is set if accommodate the supporting recess 182 of tabular protuberance 22, then protuberance 22 is set and gets final product in opposed two sides of circuit substrate 5.
Fig. 8 is the stereogram of the ECU that relates to of variation, and Fig. 9 is the sectional view of ECU shown in Figure 8.In this example, not that wire harness is incorporated in the housing 18, but Coupler 34 is set integratedly in the side of housing 18.Coupler 34 is the arbitrary sides in the plug and socket, and any in the opposing party and the plug and socket that constitutes another not shown Coupler is connected.In Fig. 9, a plurality of terminals (for example, plug terminal) 36 that are provided with at Coupler 34 are connected with electrode 16 respectively through lead 37.The protuberance 22 of circuit substrate 5 through three positions has space (air layer) A and supports with floating state in housing 18.
In this mode of execution, show utilization and form the example of protuberance 12,22, but, be not limited to rubber as elastic material as the rubber of elastic material, for example, also can replace columned protuberance 12 and use helical spring cylindraceous.And protuberance 12 can be wires such as piano wire, and tabular protuberance 22 can be stainless thin plate.
Figure 10 is that the major component sectional view of helical spring as the circuit substrate of the example of protuberance 12 used in expression.In this example, combine with the side of circuit substrate 5 as the helical spring end of protuberance 12, the other end is embedded into the supporting recess 181 of housing 18.
Figure 13 is the major component sectional view that expression has the throttle valve device 10 of the ECU that comprises circuit substrate 5.In Figure 13, the throttle valve device 10 that is incorporated with circuit substrate 5 has: closure district 38; Pack into closure district 38 and in air suction way 59 axle supporting for rotating throttler valve 14 freely as butterfly valve; Based on the aperture of throttler valve 14 etc. and the ECU30 of control fuel injection amount.The axle of throttler valve 14 (throttle plate pin: by axis 140 expression) is to the right-hand extension of Figure 11, and in the end of throttle plate pin the wire pulley 142 that closure wire 141 cards are ended is installed.
ECU30 possesses: circuit substrate 5; The housing 18 of accommodating circuit substrate 5 and combining with closure district 38; Engage with the end of housing 18 and cover the ECU cover 39 of circuit substrate 5.Between circuit substrate 5 and closure district 38, be provided with throttle sensor 40 or idling are adjusted the actuator (for example, motor) 41 that valve (not shown) drives.Housing 18 constitutes the shape that is suitable for accommodating the circuit substrate 5 of cuboid roughly, promptly from the essentially rectangular that is shaped as of the left sides of Figure 13.
ECU cover 39 is the covers that cover housing 18 ends of essentially rectangular, and many signaling lines (or lead) 29a that constitutes wire harness 29 is accommodated, and has as the Coupler that lead 29a is electrically connected with circuit substrate 16a or the function of connector.ECU cover 39 is preferably flexible materials such as resin or rubber.
Be provided with the bullport 39a that the front end of terminal 36 and lead 29a is accommodated at ECU cover 39.Bullport 39a forms the suitable number of number with the predetermined lead 29a that uses, and has angle θ with respect to the surface 43 of circuit substrate 5 and extends to oblique lower direction.Around lead 29a, be coated with rubber bushing 61, through make this rubber bushing 61 around have water proofing property with the inner peripheral surface butt of bullport 39a.
Circuit substrate 5 is so-called two-sided installation base plates that electronic units such as capacitor or element are installed respectively first (surface) 42 and second (back side) 43 these both sides.The surface 42 and the back side 43 at circuit substrate 5 possess a plurality of electrode 16a, 16b respectively.Each electrode 16a, 16b are connected with the parts that are provided with in base main body, and are connected with the outside.The a plurality of electrode 16a butts that on the terminal 36 that is provided with respectively on each the lead 29a that is clustered in ECU cover 39 and surface 42 at circuit substrate 5, are provided with also are electrically connected each other.The terminal 44 that is provided with on the throttle sensor 40 and the terminal 46,47 that is provided with on the actuator 41 respectively with the back side 43 at circuit substrate 5 on a plurality of electrode 16b butts of being provided with, and be electrically connected each other.Need to prove that for ease, lead 29a, terminal 36 and electrode 16a have only marked reference marks to 1 group in the drawings.
End face (upper surface among Figure 11 and lower surface) 5S at circuit substrate 5 is fixed with protuberance 12; Housing 18 has the supporting recess (with reference to the supporting recess 181 of Fig. 2) at the front end of inner surface side supporting protuberance 12, and the front end intercalation of protuberance 12 is supported in recess at this.
In addition, protuberance (convexity or rib) 12a, 12b can also be set at the back side 43 of circuit substrate 5.Protuberance 12a engages with the surrounding wall 41b of the recess 41a that the terminal 46,47 of actuator 41 is accommodated, and protuberance 12b engages with the surrounding wall 40b of the recess 40a that the terminal 44 of throttle sensor 40 is accommodated.Protuberance 12 both can be Fig. 1~column of Fig. 9 institute related description or tabular rubber, also can be helical spring, piano wire or the thin plate of Figure 10 institute related description.
The electrode 16b that the terminal 44,46 that stretches out from throttle sensor 40 or actuator 41 and 47 forms with the back side 43 at circuit substrate 5 mutual friction and may wearing and tearing mutually.Yet, through protuberance 12a, 12b are set, the above-below direction fixed relative position of throttle sensor 40 and actuator 41 and substrate 5, thereby inhibition terminal 44,46,47 and mutual motion that rubs of electrode 16b generation as this mode of execution owing to vibrate.
The outer surface that comprises the circuit substrate 16a of surface 42, the back side 43 and end face 5S applies mold 28 through resin material except the position that is provided with electrode 16a, 16b and protuberance 12,12a, 12b.That is, electrode 16a, 16b and protuberance 12,12a, 12b are not covered by resin material, and expose in surface 42, the back side 43 and the end face 5S side of circuit substrate 5.As resin molding method, can use the resin after the heating and pressurizing is injected into the compression and moulding method (transmitting molded and shaped) in the heating mould.
Between ECU cover 39 and circuit substrate 5, be provided with sheet packing 48.Sealing 48 can be adhesively fixed in ECU cover 39.Sealing 48 is formed by elastomeric materials such as rubber, and is provided with the hole corresponding with the number of terminal 36, can contact with the electrode 16a that exposes on surface 42 for terminal 36 connects.
Be formed with engaging respectively with projection 50 at the upper wall of housing 18 and lower wall, ECU cover engaging that 39 sides are formed with confession housing 18 respectively with the chimeric engaging of projection 50 with hole 52.Can engage with hole 52 mounting cup members 391 from the lateral.Than be formed with engaging with the top part 186 (wall section) of the housing 18 of projection 50 in the inner part (promptly by circuit substrate 5) be provided with the supporting member 185 that extends abreast with this top part 186.
Be provided with the first rib 392 that extends to housing 18 sides at ECU cover 39.Rib 392 is to extend abreast with the upper-end surface of circuit substrate 5 and to the tabular component of the extending direction of air suction way 59 expansion, it connects sheet packing 48 and is entrenched between the top part 186 and supporting member 185 of housing 18.
The vibration of motor is directly passed to the one-piece type ECU in closure district.And closure district 38, throttle sensor 40, actuator 41 and circuit substrate 5 are because therefore varying in weight and installation separately or supporting structure difference separately carry out action alone respectively under the effect of transmitting the vibration that comes.
Consequently; For example in structure shown in Figure 11; When circuit substrate 5a up-down vibration; Supporting member 185 will be opened (will to top crooked), so circuit substrate 5 with ECU cover 39 relative displacements takes place, the electrode 16a of terminal 36 and the 42 sides formation on the surface of circuit substrate 5 mutual friction and may wearing and tearing mutually.
Yet; According to this mode of execution; After ECU cover 39 is installed on housing 18, make supporting member 185 not to crooked leeway, top through rib 392, therefore can prevent the situation of the relative position of terminal 36 and the electrode 16a that exposes on surface 42 because of the vibration changing of the relative positions.
According to the ECU of each above-mentioned mode of execution, circuit substrate 5 has waterproofing effect one time through housing 18, and has further waterproofing effect through resin molded.And; The protuberance 12,22 that is made up of elastic material between end face 5S and the housing 18 of circuit substrate 5 through being clipped in circuit substrate 5 is floated; Therefore even when putting on housing 18 from the vibration of outside, its vibration also declines and transmits to circuit substrate 5 significantly being subtracted.Declined because the vibration that passes to circuit substrate 5 significantly subtracts, therefore can mechanicalness vibrate big motor E near configuration ECU30, thereby increase the degrees of freedom of layout.For example, owing near motor E, dispose parts such as the ignition mechanism that is used for engine control, throttle valve device, therefore can shorten the wiring distance between ECU30 and each the engine control parts.

Claims (15)

1. an engine controlling unit (30); It comprises circuit substrate (5) and housing (18); This circuit substrate (5) is provided with the outside electrode (16) that connects usefulness with the mode of exposing on the surface, and applies resin molded and form roughly cuboid at the whole face except that this electrode (16), and this housing (18) is accommodated said circuit substrate (5); Said engine controlling unit (30) is characterised in that
Said circuit substrate (5) to be having space (A) and to be contained in said housing (18) with respect to the non-contacting mode of said housing (18),
Said engine controlling unit possesses from the resilient member (12,22) of the end face of said circuit substrate (5) (5S) towards the tab-like one-tenth of foreign side,
The end of said resilient member (12,22) is by the internal face supporting of said housing (18).
2. engine controlling unit according to claim 1 is characterized in that,
The end of said resilient member (12,22) is embedded in the supporting recess (181,182) in the internal face formation of said housing (18).
3. engine controlling unit according to claim 1 and 2 is characterized in that,
On said housing (18), be formed with and connect the inside and outside and wire harness that forms of this housing through hole (32),
Between said wire harness is through hole (32) and the wire harness (29) through this wire harness distribution through hole (32), be provided with Sealing (33).
4. engine controlling unit according to claim 1 and 2 is characterized in that,
Said electrode (16) is the electrode of the said wire harness of connection (29),
The part except the part that is provided with said electrode (16) and the part that is formed with said resilient member (12,22) in the surface of said circuit substrate (5) is applied with said resin molded (28).
5. engine controlling unit according to claim 1 and 2 is characterized in that,
Sidepiece at said housing (18) is equipped with outside the connection with Coupler (34), and is provided with the lead (37) that is connected electrode (16) connection of usefulness from this Coupler (34) prolongation and with the outside that is provided with at said circuit substrate (5).
6. according to each described engine controlling unit in the claim 1~5, it is characterized in that,
Said housing (18) possesses housing body (183) and is covered in the lid (184) of housing body (183),
Said resilient member (12,22) is by involutory the clamping of said housing body (183) with said lid (184).
7. according to each described engine controlling unit in the claim 1~6, it is characterized in that,
Said resilient member (12) is a column.
8. according to each described engine controlling unit in the claim 1~6, it is characterized in that,
Said resilient member (22) is tabular.
9. according to each described engine controlling unit in the claim 1~8, it is characterized in that,
Said resilient member (12,22) is made up of rubber.
10. according to each described engine controlling unit in the claim 1~6, it is characterized in that,
Said resilient member (12) is a helical spring.
11. according to each described engine controlling unit in the claim 1~10, it is characterized in that,
The housing (18) of accommodating said circuit substrate (5) is the ECU housing of installing in the closure district (38) of motor,
Said circuit substrate (5) is bearing in the said housing (18) with floating state through said resilient member (12).
12. engine controlling unit according to claim 11 is characterized in that,
Said circuit substrate (5) has said electrode (16a, 16b) respectively in first (42) and second (43) with said end face (5S) quadrature,
Said engine controlling unit possesses protuberance (12a, 12b), and said protuberance (12a, 12b) engages with said housing (18), and is limited in moving on the direction with said end face (5S) quadrature with respect to this housing (18).
13. engine controlling unit according to claim 12 is characterized in that,
Said engine controlling unit possesses ECU cover (39), and this ECU cover (39) covers the end face of said housing (18), and has the rib (392) that extends to housing (18) side,
Wall section (186) that said housing (18) go up to be provided with and and the supporting member (185) that extends abreast of this wall section (186) between chimeric said rib (392) in the gap of formation.
14. engine controlling unit according to claim 11 is characterized in that,
Said protuberance (12a, 12b) is also removed at the position that is applied with said resin molded (28).
15. according to each described engine controlling unit in the claim 1~14, it is characterized in that,
Said engine controlling unit is equipped on two-wheeled, and is applicable to that this two-wheeled driving uses motor.
CN201110302005.6A 2010-09-30 2011-09-28 Engine control device Expired - Fee Related CN102444526B (en)

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