CN203482548U - A sealing connection structure of an automobile electronic control unit - Google Patents

A sealing connection structure of an automobile electronic control unit Download PDF

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Publication number
CN203482548U
CN203482548U CN201320481914.5U CN201320481914U CN203482548U CN 203482548 U CN203482548 U CN 203482548U CN 201320481914 U CN201320481914 U CN 201320481914U CN 203482548 U CN203482548 U CN 203482548U
Authority
CN
China
Prior art keywords
housing
bonnet
electronic control
control unit
circle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320481914.5U
Other languages
Chinese (zh)
Inventor
邹常华
翟林铎
刘锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI AEROSPACE AUTOMOBILE ELECTROMECHANICAL CO Ltd
Original Assignee
SHANGHAI AEROSPACE AUTOMOBILE ELECTROMECHANICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI AEROSPACE AUTOMOBILE ELECTROMECHANICAL CO Ltd filed Critical SHANGHAI AEROSPACE AUTOMOBILE ELECTROMECHANICAL CO Ltd
Priority to CN201320481914.5U priority Critical patent/CN203482548U/en
Application granted granted Critical
Publication of CN203482548U publication Critical patent/CN203482548U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a sealing connection structure of an automobile electronic control unit. The sealing connection structure comprises a housing equipped with an opening on the top thereof and a rear cover disposed over the opening of the housing. A convex rib is disposed on the outer rim of the opening of housing. A groove with a downward opening is disposed on the rear cover and opposite to the convex rib on the housing. After filled with sealant, the groove on the rear cover is clamped to the convex rib on the housing. The rear cover and the housing are connected through adhesive sealant so as to ensure a design requirement of double effects including connection and sealing. The sealing connection structure with simple structure has a low requirement for processing precision of the rear cover and the housing and prevents a complex mould structure and difficulty in high-precision assembling device and mould processing. The sealing connection structure has low mould cost and rejection rate.

Description

A kind of Hermetical connecting structure of vehicle electronic control unit
Technical field
The utility model relates to a kind of Vehicle Electronic Control anti-lock braking system, particularly relates to a kind of Hermetical connecting structure of vehicle electronic control unit.
Background technology
Anti-lock braking system in automobiles (AntiLockBrakeSystem), is anti-block braking system of car conventionally, is called for short ABS.It is a kind of active safety feature on automobile, its effect is when automobile brake, prevent wheel lock up sliding dragging on road surface, to improve directional stability in Motor Vehicle Braking Procedure, turn to control ability and shorten braking distance, make automobile brake safer effectively.Along with the raising of automobile driving speed,, the increase of road travel density and people are more and more higher to the requirement of ride safety of automobile, ABS has become a kind of important safety on automobile.Along with the progress of electronic technology, the development of Digital Electronic Technique, large scale integrated circuit and the utilization of microcomputer, electronic control type ABS reaches its maturity, cost constantly reduces, and volume is little, quality is light, control precision is high, and its security effectiveness is very remarkable, be subject to people's popular welcome and approval.
Electronic control unit (being called for short ECU) is an important component part of anti-lock braking system in automobiles, and it is comprised of housing, printed circuit board (being called for short PCB) and bonnet, and wherein PCB is arranged in housing, and bonnet covers the opening of housing.Housing is the support of whole ECU, and the Main Function of bonnet is to be connected with housing seal, and protection PCB is not subject to the destruction of external force and the erosion of external environment condition.
In prior art, being tightly connected of housing and bonnet mainly contains two kinds of modes:
One, on bonnet and housing, design bayonet unit, reach the effect of connection.On housing or bonnet, fluting is installed sealing ring, reaches the effect of sealing.This mode, due to the design of bayonet unit, has increased complexity and the die sinking expense of bonnet and housing part mould.
Two, bonnet adopts laser welding or ultrasonic bonding after contacting with housing periphery, is mainly by heating the material of both contact surfaces, makes the mutual welding of both contact surfaces, reaches sealing and the effect being connected.This mode is due to both contact surfaces of needs welding, therefore very high to form tolerance requirements such as the linearitys at the flatness of surface both, edge, and the machining accuracy of part has been improved to difficulty, has increased processing cost and percent defective simultaneously.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of bonnet and shell structure is simple, mould simple in structure, die sinking cost is low, the Hermetical connecting structure of, processing cost low to the requirement on machining accuracy of bonnet and housing and the low vehicle electronic control unit of percent defective, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the utility model provides a kind of Hermetical connecting structure of vehicle electronic control unit, comprise that upper end is provided with the housing and the bonnet that is arranged at the opening top of housing of opening, the opening outer rim of described housing is provided with a circle convex tendon, on described bonnet, be relatively set with the circle groove that Open Side Down with a circle convex tendon of housing, after being filled by fluid sealant in a circle groove of described bonnet, be stuck on a circle convex tendon of described housing.
Preferably, the lower surface of the inwall of one of described bonnet circle groove is lower than the lower surface of outer wall.
Preferably, on the bottom surface of described bonnet, can be provided with 2~3 alignment pins, relatively with each alignment pin of bonnet in described housing also be provided with 2~3 location holes.On the bottom surface of described bonnet, also can be provided with 2~3 location holes, relatively with each location hole of bonnet in described housing also be provided with 2~3 alignment pins.
Preferably, the below of a circle convex tendon of described housing is provided with the boss of a circle evagination, the little 0.2~1mm of the degree of depth of the groove of the aspect ratio bonnet of described convex tendon.
Preferably, the wall thickness at the boss place of described housing is 2~3 times of wall thickness at convex tendon place.
Preferably, described fluid sealant is organic silica gel.
As mentioned above, the Hermetical connecting structure of a kind of vehicle electronic control unit of the present utility model, has following beneficial effect:
Adopt cementability fluid sealant to connect bonnet and housing, guarantee the double effects of connection and the sealing of design requirement.Simple in structure, requirement on machining accuracy is low, has avoided complicated mould structure, the difficulty of also having avoided assembly equipment and mould high accuracy machining to bring, and die sinking cost is low, and percent defective is low.The alignment pin designing on bonnet and housing, location hole structure, can effectively solve the position deviation occurring while assembling between PCB, bonnet and housing; The setting of a circle boss on housing, is the how many alignment restrictions of a circle convex tendon wedging fluid sealant degree of depth as housing, and the clamping tool during also for assembling provides suitable impetus.
Accompanying drawing explanation
The master that Fig. 1 is shown as the Hermetical connecting structure of a kind of vehicle electronic control unit of the present utility model looks cross-sectional schematic.
Element numbers explanation
100 bonnets
200 housings
300 printed circuit boards
400 fluid sealants
110 location holes
120 inwalls
130 outer walls
210 alignment pins
220 convex tendons
230 boss
Embodiment
By particular specific embodiment, execution mode of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to Fig. 1.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, the utility model provides a kind of Hermetical connecting structure of vehicle electronic control unit, comprise that upper end is provided with the housing 200 and the bonnet 100 that is arranged at the opening top of housing 200 of opening, the opening outer rim of described housing 200 is provided with a circle convex tendon 220, on described bonnet 100, be relatively set with the circle groove that Open Side Down with a circle convex tendon 220 of housing 200, after being filled by fluid sealant 400 in a circle groove of described bonnet 100, be stuck on a circle convex tendon 220 of described housing 200.
Preferably, the lower surface of the inwall 120 of one of described bonnet 100 circle groove is lower than the lower surface of outer wall 130.In a circle groove of bonnet 100 during filling with sealant 400, can outer wall 130 be benchmark, be filled into the certain depth of groove, convex tendon 220 enters after groove, a part of fluid sealant 400 in groove is extruded, lower because of the lower surface of the inwall 120 of bonnet, the fluid sealant of extruding groove still can inwall 120 and convex tendon 220 in bonnet between, avoided fluid sealant 400 to flow into the inside of housings 200.
Preferably, on the bottom surface of described bonnet 100, can be provided with 2~3 alignment pins, relatively with each alignment pin of bonnet 100 in described housing 200 also be provided with 2~3 location holes.On the bottom surface of described bonnet 100, also can be provided with 2~3 location holes 110, relatively with each location hole 110 of bonnet 100 in described housing 200 also be provided with 2~3 alignment pins 210., printed circuit board 300(abbreviation PCB), be also provided with accordingly location hole.During assembling electronic control unit, the location hole of printed circuit board 300 is coordinated to the assembling realizing between printed circuit board 300 and housing 200 with outside cylinder matrix or the alignment pin 210 of location hole in housing 200, making each location hole 110 of bonnet 100 coordinate with the alignment pin 210 in housing 200 assembling realizing between bonnet 100 and housing 200, there is position deviation in this while effectively having been avoided assembling between printed circuit board 300, bonnet 100 and housing 200.
Preferably, the below of a circle convex tendon 220 of described housing 200 is provided with the boss 230 of a circle evagination, the little 0.2~1mm of the degree of depth of the groove of the aspect ratio bonnet 100 of described convex tendon 220., boss 230 is as the alignment restrictions of circle convex tendon 220 wedging fluid sealant degree of depth of housing 200, and guaranteeing has fluid sealant to fill between convex tendon 220 and the bottom land of groove, and the clamping tool during simultaneously also for assembling provides suitable impetus.
Preferably, the wall thickness at the boss place of described housing 200 is 2~3 times of wall thickness at convex tendon place, during with assurance assembling, the lower surface of the outer wall 130 of bonnet 100 props up the upper surface of a circle boss 230 of housing 200, realizes the alignment restrictions of 230 pairs of convex tendons of boss, the 220 wedging fluid sealant degree of depth.
Preferably, described fluid sealant is organic silica gel.Because the cementitiousness of organic silica gel and bonnet 100, housing 200 is stronger, can guarantee being tightly connected between bonnet 100 and housing 200; And after organic silica gel solidifies in-40~125 ℃ of environmental fields chemical property and mechanical strength stable, thereby guarantee that bonnet 100 and housing 200 being tightly connected in environment for use is stable reliably and with long-term.
The Hermetical connecting structure of a kind of vehicle electronic control unit of the present utility model is realized by the following method: by PCB, be first the location hole of printed circuit board 300 through outside cylinder matrix or the alignment pin 210 of the location hole in housing 200, with electric welding tin or other technique and housing, fix; Then by spot gluing equipment or other technique, fluid sealant is filled into equably in the groove of bonnet 100, and sets suitable packed height; The bonnet 100 of usining after encapsulating, as pedestal, assembles with bonnet 100 housing 200 that PCB is housed under the effect of alignment pin and location hole, and the convex tendon 220 of housing 200 is pressed in the fluid sealant in bonnet 100 grooves, and uses frock to clamp.After having assembled, according to the condition of cure of selected fluid sealant, product is placed in to baking box a few minutes and accelerates to solidify, or be placed in and under normal temperature environment, allow its spontaneous curing.The Hermetical connecting structure of a kind of vehicle electronic control unit of the present utility model is achieved.
In sum, the Hermetical connecting structure of a kind of vehicle electronic control unit of the present utility model adopts cementability fluid sealant to connect bonnet and housing, guarantees the double effects of connection and the sealing of design requirement.Simple in structure, requirement on machining accuracy is low, has avoided complicated mould structure, the difficulty of also having avoided assembly equipment and mould high accuracy machining to bring, and die sinking cost is low, and percent defective is low.The alignment pin designing on bonnet and housing, location hole structure, can effectively solve the position deviation occurring while assembling between PCB, bonnet and housing; The setting of a circle boss on housing, is the how many alignment restrictions of a circle convex tendon wedging fluid sealant degree of depth as housing, and the clamping tool during also for assembling provides suitable impetus.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.

Claims (7)

1. a Hermetical connecting structure for vehicle electronic control unit, comprises that upper end is provided with the housing and the bonnet that is arranged at the opening top of housing of opening; It is characterized in that, the opening outer rim of described housing is provided with a circle convex tendon, on described bonnet, be relatively set with the circle groove that Open Side Down with a circle convex tendon of housing, after being filled by fluid sealant in a circle groove of described bonnet, be stuck on a circle convex tendon of described housing.
2. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 1, is characterized in that: the lower surface of the inwall of a circle groove of described bonnet is lower than the lower surface of outer wall.
3. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 1, is characterized in that: on the bottom surface of described bonnet, be provided with 2~3 alignment pins, relatively with each alignment pin of bonnet in described housing be also provided with 2~3 location holes.
4. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 1, is characterized in that: on the bottom surface of described bonnet, be provided with 2~3 location holes, relatively with each location hole of bonnet in described housing be also provided with 2~3 alignment pins.
5. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 1 and 2, it is characterized in that: the below of a circle convex tendon of described housing is provided with the boss of a circle evagination, the little 0.2~1mm of the degree of depth of the groove of the aspect ratio bonnet of described convex tendon.
6. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 5, is characterized in that: the wall thickness at the boss place of described housing is 2~3 times of wall thickness at convex tendon place.
7. the Hermetical connecting structure of a kind of vehicle electronic control unit according to claim 1, is characterized in that: described fluid sealant is organic silica gel.
CN201320481914.5U 2013-08-07 2013-08-07 A sealing connection structure of an automobile electronic control unit Expired - Fee Related CN203482548U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320481914.5U CN203482548U (en) 2013-08-07 2013-08-07 A sealing connection structure of an automobile electronic control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320481914.5U CN203482548U (en) 2013-08-07 2013-08-07 A sealing connection structure of an automobile electronic control unit

Publications (1)

Publication Number Publication Date
CN203482548U true CN203482548U (en) 2014-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN203482548U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106004713A (en) * 2016-06-28 2016-10-12 天津雷沃动力有限公司 Protective structure for engine electronic control unit
CN108029207A (en) * 2015-09-15 2018-05-11 大陆泰密克微电子有限责任公司 The control device to medium-tight for motor vehicles
CN108575068A (en) * 2017-03-13 2018-09-25 宁德时代新能源科技股份有限公司 Battery control unit embedding structure and packaging method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108029207A (en) * 2015-09-15 2018-05-11 大陆泰密克微电子有限责任公司 The control device to medium-tight for motor vehicles
US10470325B2 (en) 2015-09-15 2019-11-05 Cpt Zwei Gmbh Media-tight control device for a motor vehicle
CN106004713A (en) * 2016-06-28 2016-10-12 天津雷沃动力有限公司 Protective structure for engine electronic control unit
CN108575068A (en) * 2017-03-13 2018-09-25 宁德时代新能源科技股份有限公司 Battery control unit embedding structure and packaging method

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140312

Termination date: 20160807