CN105774787A - Brake control device - Google Patents
Brake control device Download PDFInfo
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- CN105774787A CN105774787A CN201410820474.0A CN201410820474A CN105774787A CN 105774787 A CN105774787 A CN 105774787A CN 201410820474 A CN201410820474 A CN 201410820474A CN 105774787 A CN105774787 A CN 105774787A
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- motor
- control unit
- heat dissipation
- brake control
- dissipation base
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Abstract
The invention discloses a brake control device. The brake control device comprises a main cylinder, a motor, a housing and a control unit, wherein the main cylinder generates a hydraulic braking pressure in response to the operation of a braking pedal; the motor is used for driving the main cylinder; the housing is used for assembling the main cylinder and the motor inside; and the control unit is suitable for controlling the driving of the motor. The control unit is provided with a bottom, which is at least partially formed together with the housing in an integrated way, and comprises a circuit board, which is provided with a driving component for driving the motor. The brake control device comprises a heat radiating base; the heat radiating base is positioned on the internal surface of the bottom of the control unit, far away from the motor and much closer to the main cylinder than the motor; and the heat radiating base is in contact with the circuit board to radiate heat, generated by the driving component, to the housing.
Description
Background technology
The present invention relates to the brake control of a kind of actuator for controlling in automotive brake system.
Background technology
As being used for controlling an example of the brake control of the actuator in automotive brake system, Japanese Laid-Open Patent file 2011-219079 discloses the liquid braking device assembly of a kind of master cylinder having and being driven under the control of the control unit by motor.In this conventional type brake control, control unit is adjacently positioned with motor.Due to this arrangement form, occur in that the problem that the becoming large-sized of brake control, the heat dispersion of control unit and resistance to shock are poor.
Summary of the invention
The present invention makes in view of the above problems.Therefore, one of the object of the invention is to provide a kind of brake control with motor and control unit, and this brake control improves heat dispersion and the resistance to shock of control unit while size diminishes.
According to an aspect of the present invention, the present invention provides a kind of brake control, produces the master cylinder of hydraulic brake pressure including the operation of: response brake pedal；Drive the motor of master cylinder；For assembling the shell of master cylinder and motor wherein；And it is suitable for the control unit that motor is driven to be controlled, wherein, this control unit has the bottom being formed integrally with the enclosure at least in part, and includes being provided with the circuit board driving element for drive motor；This brake control also includes heat dissipation base, and this heat dissipation base is positioned at bottom control unit, is in away from motor the ratio motor position closer to master cylinder, and thermally contacts with circuit board, in order to distributes by the heat driving element to produce towards shell.
In the present invention, heat dissipation base is in shell side in control unit, is located remotely from motor the ratio motor position closer to master cylinder, thus the driving element of circuit board is thermally contacted with shell by heat dissipation base.Therefore, the impact of vibration driving element to be subject to motor can be avoided.And, drive the heat of element to distribute towards shell at any time.Therefore, in the present invention, it is possible to increase the heat dispersion of control unit and resistance to shock, reduce the size of brake control simultaneously.
By reading following description, those skilled in the art also are appreciated that other purpose and the characteristic of the present invention.
Accompanying drawing explanation
Fig. 1 is the perspective view of the brake control of one embodiment of the present of invention；
Fig. 2 is the decomposition diagram of the brake control shown in Fig. 1；
Fig. 3 is the plane graph of the circuit board of the control unit of the brake control shown in Fig. 1；
Fig. 4 is the perspective view at the back side of the circuit board shown in Fig. 3；
Fig. 5 is the perspective view of the shell of the brake control shown in Fig. 1, and wherein, the protecting cover of control unit unloads；
Fig. 6 is the top view of the brake control shown in Fig. 1；
Fig. 7 is the front view of the brake control shown in Fig. 1；
Fig. 8 is the cross-sectional view of the neighbouring structure of the adapter of the control unit shown in Fig. 3.
Detailed description of the invention
One embodiment of the present of invention is described below with reference to accompanying drawings.
As it is shown in figure 1, the including for the brake control of automobile of one embodiment of the invention: master cylinder 2, the operation of the brake pedal of its response automobile and produce hydraulic brake pressure by piston therein；Drive the motor 3 of master cylinder 2；For assembling the shell 4 of master cylinder 2 and motor 3 wherein；And control unit 5, it is combined with shell 4, and is suitable for being driven motor 3 controlling.
In this embodiment, master cylinder 2 and motor 3 are not coaxially arranged (that is, master cylinder 2 and motor 3 are arranged as double-shaft way) each other in shell 4.Shell 4 is combined with known conversion of motion mechanism wherein, brake pedal is depressed thus when the rotor of motor 3 starts to rotate with box lunch, this conversion of motion mechanism is the straight line axially-movable of the piston that convert rotational motion is master cylinder 2 of the rotor of motor 3, although in the drawings and not specifically illustrated.
Input lever 21 is connected to the piston in master cylinder 2, and draws from one end of master cylinder 2.Master cylinder 2 includes: hydraulic fluid reservoir 22, and this hydraulic fluid reservoir is for storing brake fluid wherein, in order to master cylinder 2 filling brake fluid；For monitoring the gauge pipe wire system (not shown) of the internal pressure of master cylinder 2；And the braking pipeline system (not shown) for the hydraulic brake pressure (that is, the pressure of brake fluid) produced by the motion of piston of releasing.
The structure of control unit 5 is described more detail below.
As in figure 2 it is shown, control unit 5 includes circuit board 8, for holding the box-shaped shell 6 (as housing member) of circuit board 8 wherein and for the lid (as cover component) of seal casinghousing 6.
Circuit board 8 has the laminal substrate being made up of synthetic resin material, be arranged on substrate the main circuit block 81 in one side 80 (hereinafter referred to as " installed surface ") and the energising terminal 84 being arranged on the another side of substrate, as shown in Figure 3 and Figure 4.
Main circuit block 81 include to motor 3 export control signal at least one controller 82 (such as microcomputer) and according to control signal to energising terminal 84 output drive signal driving element 83a and 83b.From when driving element 83a and 83b to receive driving signal, energising terminal 84 sends to motor 3 and drives signal.That is, main circuit block 81 is as the inverter circuit of motor 3.
And, the installed surface 80 of substrate is provided with relay, this relay has MOSFET, parallel resistance, co-mode coil, norm coil, electrochemical capacitor etc., as the parts of filtering electronics, and electrically connects with main circuit block 81.
The peripheral part of the substrate of circuit board 8 is formed with multiple fixing hole 85 with suitable interval, in order to fixture 86 is inserted in corresponding fixing hole 85, thus circuit board 8 is fixed in housing 6.
Circuit board 8 also has the adapter 7 on the installed surface 80 being arranged on substrate, as shown in Figure 1, Figure 2 with shown in Fig. 8.
Adapter 7 includes: the main circuit block 81 of circuit board 8 is electrically connected to the connection terminal 71 of external equipment (not shown)；Holding wherein and support the connector body 72 connecting terminal 71, the one end connecting terminal 71 is exposed by the opening 70 of connector body 72；Flange part 73 integral part of with the bottom side outer surface of connector body 72；And support portion 74 integral part of with connector body 72 and flange part 73,74, this support portion connector body 72 and flange part 73 are supported on circuit board 8.
Being formed with seal groove 75 in the flange part 73 of adapter 7, the protuberance 94 of lid 9 can be plugged in seal groove 75.
When protuberance 94 is inserted in seal groove 75, sealant 10 is used to be filled with a sealing groove 75.The kind of sealant 10 is not particularly limited, as long as sealant 10 has mobility.Sealant 10 can be such as epoxy sealing material, silicone seal material, acrylic sealants material etc..Sealant 10 suitably can select according to the specification of brake control 1.It is not necessarily intended to and fills up seal groove 75 with sealant 10.The amount of the sealant 10 being filled in seal groove 75 only needs to ensure: when protuberance 94 being inserted in the sealant 10 in seal groove 75, and the amount of the sealant 10 being extruded because of the insertion of protuberance 94 is enough to be full of gap L1 as shown in Figure 8.
In order to improve the attachment precision of lid 9 and housing 6, guidance part can be integrally formed with seal groove 75, in order to protuberance 94 is directed in the width direction the immediate vicinity of seal groove 75.
Housing 6 has box-shaped shell body 61, and this enclosure body 61 is integrally formed with shell 4 at least in part, and limits the space for holding circuit board 8 wherein.In this embodiment, enclosure body 61 has bottom, and a part for bottom and shell 4 combine and be integrally formed, and remaining another part 6A does not combine with shell 4, as shown in Figure 5.
If Fig. 1 and Fig. 5 is to shown in Fig. 7, multiple tabular radiating fins 66 are formed on the outer surface (motor side surface) of the non-built-up section 6A of housing 61, and extend towards motor 3.
In this embodiment, various sizes of heat dissipation base 62a to 62c is protrudedly formed on the bottom interior surface of enclosure body 61, corresponding with the position of the high heating circuit parts of circuit board 8 as shown in Figure 2 and Figure 5 (such as controller 82, driving element 83a and 83b and filtering electronics parts), thus distribute the heat produced by these circuit blocks towards shell 4.
The bottom interior surface of heat dissipation base 62a and housing 61 is integrally formed, and is in away from motor 3 and than the motor 3 position (that is, adjacent with the axis of master cylinder 2) closer to master cylinder 2.Being contained in the state of housing 6 at circuit board 8, heat dissipation base 62a thermally contacts with circuit board 8, in order to distribute by driving the element 83a heat produced towards shell 4.
The size (volume) of heat dissipation base 62b is less than heat dissipation base 62a, and its bottom interior surface with enclosure body 61 is integrally formed, and is in the non-position corresponding for built-up section 6A with housing 6.Being contained in the state in housing 6 at circuit board 8, heat dissipation base 62b thermally contacts with circuit board 8, in order to distribute by driving the element 83b heat produced towards radiating fin 66.
The size (volume) of heat dissipation base 62c is less than heat dissipation base 62b, and its bottom interior surface with housing 61 is integrally formed, and is in and heat dissipation base 62a adjoining position.When circuit board 8 is contained in housing 6, heat dissipation base 62c thermally contacts with circuit board 8, in order to distribute the heat produced by controller 82 towards shell 4.
Adjacent corner at the bottom interior surface of enclosure body 61 has been protrudedly formed multiple fixed part 63, by the fixture 86 of circuit board 8 is screwed in corresponding fixed part 63, it is possible to circuit board 8 is fixed in housing 6.Adjacent corner in enclosure body 61 has also been protrudedly formed multiple fixed part 65, for lid 9 is fixed to housing 6.
Be formed with seal groove 64 in the peripheral part of enclosure body 61, the protuberance 91 of lid 9 can be plugged in seal groove 64.
The same with the situation of seal groove 75, when protuberance 91 is inserted in seal groove 64, use sealant 10 to be filled with a sealing groove 64.Sealant 10 used herein can be identical with above-mentioned sealant.It is not necessarily intended to and fills up seal groove 64 with sealant 10.The amount of the sealant 10 being filled in seal groove 84 only needs to ensure: when protuberance 91 being inserted in the encapsulant 10 in seal groove 64, and the amount of the sealant 10 being extruded because of the insertion of protuberance 91 is enough to be full of gap L2 as shown in Figure 8.
It should be noted that in this embodiment, the height of fixed part 63 is set to: be correctly fixed in the state on the fixed part 63 of housing 6 at circuit board 8, and the seal groove 75 of adapter 7 is in the position higher than the seal groove 64 of housing 6.
As it is shown in figure 5, be respectively disposed with radiating piece 67 on heat dissipation base 62a and 62b.Radiating piece 67 is had no particular limits, as long as radiating piece 67 has thermal conductive property.Radiating piece 67 is not limited to lamellar.Known heat sink material can be used, for instance heat radiation fat, the heat-conducting glue etc. being representative with thermal paste.
Lid 9 includes the box-shaped cap body 91 being made up of metal material or resin material, to close the opening of the housing 6 wherein accommodating circuit board 8, as shown in Figure 1.At this, by adopting resin material, it is possible to reduce production cost and the weight of lid 9.Above-mentioned protuberance 91 is formed around the peripheral part of cap body 91, is downwardly projected and is engaged in the seal groove 64 of housing 64.
Cap body 91 has window portion 92, and this window portion is formed in the top cover in cap body 91, and the connector body 72 of adapter 7 is through window portion 92.As shown in Figure 8, window portion 92 includes from the downward projection of window frame 93 of the lower surface of the top cover of cap body 91.Above-mentioned protuberance 94 and the peripheral part of window frame 93 are integrally formed, and are formed around this peripheral part, and it is downwardly projected, and is engaged in the seal groove 75 of adapter 7.
It should be noted that, according in the difference in height assembled after control unit 5 between seal groove 75 and the seal groove 64 of housing 6 of adapter 7, it is set smaller than the lower surface distance to the far-end of protuberance 91 of top cover from cap body 91 to the distance of the far-end of protuberance 94 from the lower surface of the top cover of cap body 91.
As in figure 2 it is shown, be formed with multiple fixing hole 96 in the corner of the peripheral part of cap body 90, by fixture 95 is inserted in fixing hole 96, and these fixtures 95 be screwed in the corresponding fixed part 65 of housing 6, lid 9 can be fixed on housing 6.
One example of the assemble method of control unit 5 is described below with reference to Fig. 2, Fig. 5 and Fig. 8.
After radiating piece 67 being pasted or is attached on heat dissipation base 62a and the 62b of housing 6, circuit board 8 is placed on the fixed part 63 of housing 6.Then, insert fixture 6 by the fixing hole 85 of circuit board 8, and fixture 86 is screwed in the fixed part 63 of housing 6.Now, the opening of the seal groove 75 holding the opening in space, the opening of seal groove 64 of housing 6 and adapter 7 of housing 6 is towards same direction.
Subsequently, sealant 10 is used to fill the seal groove 64 of housing and the seal groove 75 of adapter 7.
Then, respectively the protuberance 91 and 94 of lid 9 is inserted in the seal groove 64 of housing 6 and the seal groove 75 of adapter 7, and makes the connector body 72 window portion 92 through lid 9 of adapter 7, thus lid 9 is attached on housing 6.
Before protuberance 91 is inserted seal groove 64, it is necessary to protuberance 94 is inserted in seal groove 75, as shown in Figure 8.This can make lid 9 relative to housing 6 correctly horizontal location, in order in the width direction the far-end of protuberance 91 is directed to the immediate vicinity of seal groove 64.
When lid 9 is shifted onto on housing 6, the protuberance 91 and 94 of lid 9 is respectively embedded in the sealant 10 in the seal groove 64 of housing 6 and the seal groove 75 of adapter 7.When lid 9 is shifted onto on housing 6 further, owing to seal groove 64 and 75 is inserted in protuberance 91 and 94, sealant 10 is extruded, it is full of gap L1 and L2 as shown in Figure 8, thus forming airtight and watertight sealing between the peripheral part of housing 6 and lid 9 and between the peripheral part of adapter 7 and lid 9 (window portion 92).
In this way, after using sealant 10 to fill the seal groove 64 of housing 6 and the seal groove 75 of adapter 7, lid 9 is fixed on housing 6.
Then, the fixing hole 96 of fixture 95 traverse lid 9, and it is screwed in the fixed part 65 of housing 6.
When sealant 10 is after the scheduled time solidifies, together with housing 6 is completely fixed to lid 9.Thus complete the assembling of control unit 5.
In the state assembled, circuit board 8 is thermally contacted with heat dissipation base 62a to 62c by radiating piece 67 such that it is able to effectively distribute the heat produced by high heating circuit parts (such as controller 82 and driving element 83a and 83b) towards shell 4.
In the work process of motor 3, the top cover of lid 9 is likely to vertical motion.But, elastomeric sealant 10 is between lid and adapter 7 and between lid 9 and housing 6, as shown in Figure 8.This vibration can be absorbed by elastomeric sealant 10, because of without to driving element 83a and 83b etc. to produce harmful effect.
Therefore, as mentioned above, it is possible to improve heat dispersion and the resistance to shock of control unit 5, reduce the size of brake control 1 simultaneously.
In this embodiment, heat dissipation base 62a to 62c is positioned at shell 4 side, thus available shell 4 is as heat transfer substance.This can reduce the size of radiating fin 66, thus reducing the overall size of brake control.
And, element 83a and the 83b that drives of circuit board 8 is thermally contacted with shell 4 by heat dissipation base 62a and the 62b being in away from motor 3 and near the position of the master cylinder 2 of control unit 5.More specifically, in this embodiment, heat dissipation base 62a is positioned at the position adjacent with the axis of master cylinder 2；Heat dissipation base 62b little for volume ratio heat dissipation base 62a is positioned at the non-position corresponding for built-up section 6A with housing 6；Radiating fin 66 is arranged in the wasted space between the motor side surface of the non-built-up section 6A of motor 3 and housing 6.So, it is prevented from driving element 83a and the 83b impact being subject to the vibration of motor 3, and effectively can distribute by driving the element 83a heat produced to shell 4 simultaneously, and be distributed by driving the element 83b heat produced to the wasted space between motor 3 and housing 6 by radiating fin 66.Can effectively prevent brake control 1 from becoming large-sized it addition, radiating fin 66 is arranged in the wasted space between motor 3 and housing 6.
And, the above-mentioned arrangement of heat dissipation base 62a and 62b allows to drive element 83a to distribute heat towards high heat capacity master cylinder 2 from high heating value, and allow to drive element 83b to distribute heat by radiating fin 66 to the outside of housing 6 from another, thus reducing the cumulative volume of heat dissipation base 62a and 62b. simultaneously.In this embodiment, heat dissipation base 62c is also adjacently positioned with heat dissipation base 62a, in order to distribute the heat produced by controller 82 towards shell 4.The distributed arrangement mode of this heat radiation point can effectively prevent hot dry disturbing, and improves the heat dispersion of control unit 5.
Especially, in this embodiment, big for volume ratio heat dissipation base 62b heat dissipation base 62a is arranged in the position (that is, master cylinder 2 installation point onboard) adjacent with the axis of master cylinder 2；And radiating fin 66 is arranged in a position adjacent with the installation point of above-mentioned master cylinder 2.In such manner, it is possible to effectively reduce the vibration velocity caused by the operating of motor 3, and suppress this vibration.By this vibration suppression effect, it is possible to use metal or resin lid 9, to reduce weight and to reduce cost.
Owing to the bottom surface of heat dissipation base 62b Yu the non-built-up section 6A of housing 6 is integrally formed, therefore heat dissipation base 62b can play the function of reinforcement, and strengthens the non-built-up section 6A of housing 6.
Can utilize heat-conducting glue that heat dissipation base 62a to 62c and circuit board 8 are bonded together, to guarantee the sinking path from circuit board 8 to heat dissipation base 62a to 62c.Heat dissipation base 62a to 62c is bonded to the fixed performance that can also be effectively improved circuit board 8 on circuit board 8, and prevent circuit board 8 from warpage occurring.And, in above-mentioned distributed arrangement mode, if heat dissipation base 62a to 62c is bonding, then can effectively reduce the number of the fixture 86 of circuit board 8.
The complete content that Japanese patent application 2013-194163 (submits in JIUYUE in 2013) on the 19th is incorporated herein by.
Although the present invention illustrates with reference to above-mentioned exemplary embodiment, but the present invention is not limited to exemplary embodiments mentioned above.Above-described embodiment can be made various modifications and variations according to above-mentioned instruction by those skilled in the art.The scope of the present invention is only determined by the claims that follow.
Claims (6)
1. a brake control, including:
The operation of response brake pedal and produce the master cylinder of hydraulic brake pressure；
Drive the motor of master cylinder；
For assembling the shell of master cylinder and motor wherein；With
It is suitable for the control unit that motor is driven to be controlled,
Wherein, control unit has bottom integral part of with described shell at least in part, and includes being provided with the circuit board driving element for drive motor；And
Brake control includes heat dissipation base, this heat dissipation base is positioned on the bottom interior surface of control unit, it is in away from motor the ratio motor position closer to master cylinder, and this heat dissipation base thermally contacts with circuit board, in order to distribute by the heat driving element to produce towards described shell.
2. brake control as claimed in claim 1, wherein,
Control unit includes holding the housing member of circuit board wherein and sealing the cover component of this housing member；
The bottom of control unit is limited by described housing member, and include not with described housing combination but towards motor arrange part；And
Brake control includes radiating fin, and this radiating fin is protrudedly formed on a motor side surface of the aforementioned part not combined.
3. brake control as claimed in claim 1, wherein,
Control unit includes holding the housing member of circuit board wherein and sealing the cover component of this housing member；
The bottom of control unit is limited by described housing member, and include not with the part of described housing combination；With
Wherein, brake control also includes another heat dissipation base, and this another heat dissipation base is less than the volume of aforesaid heat dissipation base, and is positioned on the bottom interior surface of control unit, is in the position corresponding with the aforementioned part not combined.
4. brake control as claimed in claim 3, wherein,
The bottom interior surface of another heat dissipation base described and control unit is integrally formed, and is positioned at the position corresponding with the aforementioned part not combined.
5. brake control as claimed in claim 3, wherein,
The aforementioned motor that is partially toward not combined is arranged；And
Brake control includes radiating fin, and this radiating fin is protrudedly formed on a motor side surface of the aforementioned part not combined.
6. brake control as claimed in claim 1, wherein,
Described plate and heat dissipation base are bonded together by heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410820474.0A CN105774787A (en) | 2014-12-25 | 2014-12-25 | Brake control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410820474.0A CN105774787A (en) | 2014-12-25 | 2014-12-25 | Brake control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105774787A true CN105774787A (en) | 2016-07-20 |
Family
ID=56377096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410820474.0A Pending CN105774787A (en) | 2014-12-25 | 2014-12-25 | Brake control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105774787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451692A (en) * | 2018-12-18 | 2019-03-08 | 向隆 | A kind of brake monitor of pilotless automobile |
Citations (6)
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|---|---|---|---|---|
| JP2007201039A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Communication Technologies Ltd | Heat dissipating structure of electronic equipment |
| US20110259005A1 (en) * | 2008-12-04 | 2011-10-27 | Hitachi Automotive Systems, Ltd. | Brake Controller |
| CN102910163A (en) * | 2011-08-05 | 2013-02-06 | 日立汽车系统株式会社 | Electronic Control Unit |
| CN103358931A (en) * | 2008-01-31 | 2013-10-23 | 株式会社日立制作所 | Electric booster |
| CN103707869A (en) * | 2012-09-28 | 2014-04-09 | 日立汽车系统株式会社 | Electric motor-driven booster |
| CN104057939A (en) * | 2013-03-21 | 2014-09-24 | 日立汽车系统株式会社 | Brake control apparatus |
-
2014
- 2014-12-25 CN CN201410820474.0A patent/CN105774787A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007201039A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Communication Technologies Ltd | Heat dissipating structure of electronic equipment |
| CN103358931A (en) * | 2008-01-31 | 2013-10-23 | 株式会社日立制作所 | Electric booster |
| US20110259005A1 (en) * | 2008-12-04 | 2011-10-27 | Hitachi Automotive Systems, Ltd. | Brake Controller |
| CN102910163A (en) * | 2011-08-05 | 2013-02-06 | 日立汽车系统株式会社 | Electronic Control Unit |
| CN103707869A (en) * | 2012-09-28 | 2014-04-09 | 日立汽车系统株式会社 | Electric motor-driven booster |
| CN104057939A (en) * | 2013-03-21 | 2014-09-24 | 日立汽车系统株式会社 | Brake control apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451692A (en) * | 2018-12-18 | 2019-03-08 | 向隆 | A kind of brake monitor of pilotless automobile |
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Application publication date: 20160720 |
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