CN207720544U - Electronic control unit - Google Patents
Electronic control unit Download PDFInfo
- Publication number
- CN207720544U CN207720544U CN201721427961.6U CN201721427961U CN207720544U CN 207720544 U CN207720544 U CN 207720544U CN 201721427961 U CN201721427961 U CN 201721427961U CN 207720544 U CN207720544 U CN 207720544U
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- Prior art keywords
- barricade
- bottom wall
- outer periphery
- electronic control
- control unit
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Abstract
The utility model discloses a kind of electronic control unit, including：Upper cover body, the upper cover body include side wall and roof；Lower cover, the lower cover includes bottom wall and the barricade that extends to the upper cover body direction of outer periphery along the bottom wall, and height of the barricade in the corner of the bottom wall outer periphery is higher than the height at other positions of the barricade in the outer periphery of the bottom wall；The upper cover body and the lower cover are mechanically linked to form receiving space；Printed circuit-board assembly, the printed circuit-board assembly are installed in the receiving space.The electronic control unit has good water resistance.
Description
Technical field
The utility model is related to a kind of control device more particularly to a kind of electronic control dresses for controlling vehicle-mounted air bag
It sets.
Background technology
Control device applied to motor vehicles for example control vehicle-mounted air bag electronic control unit be commonly equipped with it is applicable
In the shell of the structure member mounted on motor vehicles.In the shell, printed circuit board supports electronic control unit and realizes work(
Electronic component needed for energy.In addition, the shell of electronic control unit is equipped with the electric connector for wiring, provides and pass
Communication between sensor, actuator or other control devices.
The printed circuit board of electronic control unit is covered by shell, and extraneous complicated harsh environment can be prevented to electronics control
Device processed damages.The printed circuit board that electronic control unit is protected by shell, in such as vehicle by can be with when hitting
Reliably start air bag to protect the safety of occupant.
The shell of electronic control unit generally includes upper cover body and lower cover, and lower cover is installed together protection with upper cover body
The back side of printed circuit board.In the case where complicated harsh working environment for example soaks, flow can be because of capillarity
The inner space that shell is penetrated into along the gap between lower cover and upper cover body influences the normal work of electronic control unit,
Therefore new technical solution is needed to overcome the problems, such as this.
Utility model content
In view of one or more problem existing in the prior art, the utility model solution proposes a kind of electronic control
Device.What the technical solution of the utility model was realized in：
A kind of electronic control unit, which is characterized in that it includes：
Upper cover body, the upper cover body include side wall and roof；
Lower cover, the lower cover include bottom wall and extend to the upper cover body direction along the outer periphery of the bottom wall
Barricade, the barricade the corner of the bottom wall outer periphery height higher than the barricade in the outer periphery of the bottom wall
The height at other positions；
The upper cover body and the lower cover are mechanically linked to form receiving space；
Printed circuit-board assembly, the printed circuit-board assembly are installed in the receiving space.
Preferably, there is the fixed part extended to the upper cover body direction, the fixed part on the inner surface of the bottom wall
For fixing the printed circuit-board assembly, the fixed part is connected to the inner surface of the barricade；It is connected to the fixed part
The barricade height be less than the barricade the corner of the bottom wall outer periphery height.
Preferably, the side wall of the upper cover body has the first opening being connected to the receiving space；The barricade is in institute
State thickness of the thickness of the first opening less than or equal to the barricade at other positions of the outer periphery of the bottom wall；It is described
Barricade first opening height be less than the barricade the corner of the bottom wall outer periphery height.
Preferably, the barricade has several stage portions upwardly extended by bottom wall of setting on its outer surface, institute
The height for stating stage portion is less than the height of the barricade, several described stage portions are used to support the side wall.
Preferably, the electronic control unit further includes electric connector, the electric connector and the printed circuit board group
Part is connected and is open mounted on described first, and the stage portion is additionally operable to support the electric connector.
Preferably, the stage portion is arranged in the barricade on the outer surface of the corner of the bottom wall outer periphery.
Preferably, height of the barricade in the corner of the bottom wall outer periphery is higher than the barricade in the bottom wall
The height at other positions of outer periphery at least 1mm.
Preferably, the barricade further includes chamfering in the upper surface of the corner of the bottom wall outer periphery.
Preferably, it is provided with seaming slot on the upper cover body and the lower cover outer surface of one of them, another
Card wedge is provided on outer surface, the card wedge is snapped in the seaming slot and connect the upper cover body with the lower cover.
Preferably, the upper cover body and the lower cover are made of plastic material.
According to the utility model proposes electronic control unit have preferable water resistance, in complicated harsh work
Ensure the normal work of electronic control unit under environment.
Description of the drawings
In order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art, below to embodiment
Or attached drawing needed to be used in the description of the prior art does simple introduction.It should be evident that the accompanying drawings in the following description is this
Some embodiments of utility model, to those skilled in the art, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the dimensional structure diagram according to the electronic control unit of the utility model specific embodiment；
Fig. 2 is the vertical view of the electronic control unit in Fig. 1；
Fig. 3 is the structural decomposition diagram of the electronic control unit in Fig. 1；
Fig. 4 is the dimensional structure diagram of the lower cover of the electronic control unit in Fig. 2.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with the accompanying drawings and specifically
Embodiment the application is described in further detail.
As the embodiments of the present invention, figures 1 and 2 show that with cuboid shape or substantially square
The control device of bulk shape shell.The work of the vehicle-mounted air bag of such as motor vehicles of control device control in the present embodiment
Make.The control device is typically located at the comparatively safe region of vehicle and leads to for example between pilot set and assistant driver seat
It is commonly referred to as in the region in channel, a kind of electronics of the igniter for lighting vehicle-mounted air bag when vehicle crashes
Control device 1.With reference to figure 3, electronic control unit 1 includes：Upper cover body 2, printed circuit-board assembly 3, lower cover 4 and electric connector
5。
Upper cover body 2 is the box like structure being made of plastic material, and upper cover body 2 defines a three-dimensional receiving space A, print
Printed circuit board component 3 is mounted in receiving space A, to which upper cover body 2 can apply protection for example to printed circuit-board assembly 3
Prevent dust and water droplet from entering and resisting extraneous hit.Upper cover body 2 is made of fiber glass reinforced polypropylene.Upper cover body 2 includes top
Wall 2a, side wall 2b, upper cover body 2 further includes the first opening 2c being connected to along plugging direction with receiving space A, in the present embodiment, the
One opening 2c is formed on side wall 2b, and roof 2a and side wall 2b collectively define the first opening 2c.Along printed circuit board group
The installation direction of part 3, side wall 2b is in the opening of the position restriction opposite with roof 2a second 2d.
In addition, having on the side wall 2b of upper cover body 2 to receiving space A sunken insides and the first mounting portion 9 for being formed and the
Two mounting portions 10 further include first positioning hole 2b1, second location hole 2b2 through side wall 2b on side wall 2b.Wherein, first is fixed
Position hole 2b1 is arranged in the first mounting portion 9, and second location hole 2b2 is arranged in the second mounting portion 10.First mounting portion 9 and
Two mounting portions 10 are respectively provided with the installation of supplied for electronic control device 1 to the first installation component 7 of structure position in motor vehicle body
With the second installation component 8.First installation component 7 and the second installation component 8 be by be at least partially embedded first positioning hole 2b1,
Metal component in second location hole 2b2.In the present embodiment, also distinguish on the first installation component 7, the second installation component 8
It is formed through the first mounting hole 71, the second mounting hole 81 of installation component, with the first mounting hole 71 of insertion, the second mounting hole 81
Fastener carry out to the structure position of motor vehicles install electronic control unit 1.First mounting hole 71, second mounting hole 81
Diameter can be determined by join-strength calculation as needed or be determined according to the diameter of determining fastener.In the present embodiment
In, the first installation component 7, the second installation component 8 are integrally formed with upper cover body 2 for example, by embedding and injection molding technique.
In addition, relatively two edges of the side wall 2b at the second opening 2d respectively further comprise two by the edges side wall 2b
The seaming slot 2b3 stretched out to 4 direction of lower cover.
Printed circuit-board assembly 3 includes the electronics member device of printed circuit board and the vehicle-mounted air bag work of the control being arranged on
Part.The electric connector 5 that printed circuit-board assembly 3 is gone back and is attached and communicates with external equipment is connect, and electric connector 5 is mounted on
First opening 2c.The electric connector 5 includes insulating body and multiple conducting terminals.Multiple conducting terminals are electrically connected to printed circuit
Wiring circuit pattern on plate, specifically, conducting terminal include multiple external terminals and multiple inner terminals, external terminal and inner terminal
Connection, the external equipment thus and with inner terminal connecting external device such as sensor class, actuator class are electrically connected.Meanwhile
The hole that external terminal stretches on printed circuit-board assembly is connect with printed circuit board.Further, in the insulating body of electric connector 5
On, the locator protrusions of the location hole of printed circuit board is formed in equipped with insertion, electric connector 5 is firmly fixed in the above manner
To printed circuit-board assembly 3.
Lower cover 4 is generally plate like by being integrally formed as with the plastics of 2 same material of upper cover body.The protection printing electricity of lower cover 4
The back side of road board group part 3.Specifically, lower cover 4 is installed together by the way of such as mechanical connection with upper cover body 2, to
Second opening 2d of closed above body 2.Further, lower cover 4 is formed integrally as the shallow box-like that circumferential edges slightly erect.
Specifically, the neighboring (each side) of the bottom wall 4a of generally rectangular shaped shape extend to 2 direction of upper cover body perpendicular to bottom wall
The continuous barricade 4b of 4a, therefore lower cover 4 is integrally formed to be open upward.
With reference to figure 3 and Fig. 4, barricade 4b there is several stage portions 4b1, several stage portions 4b1 discontinuously to surround barricade
4b is set to the outer surface of barricade 4b, and stage portion 4b1 is also upwardly extended by bottom wall 4a, and the height of stage portion 4b1 is less than or waits
In the height of barricade 4b.Several stage portions 4b1 is used in the second opening 2d of 4 closed above body 2 of lower cover and upper cover
The side wall 2b of upper cover body 2 is supported when body 2 is installed together and supports the electric connector 5 for being mounted on the first opening 2c.
In addition, stage portion 4b1 is discontinuously arranged around barricade 4b on the outer surface of barricade 4b, and particularly, stage portion
4b1 is arranged i.e. continuously distributed in the corner of barricade 4b in the corner of barricade 4b.
Further, on the outer surface of barricade 4b being oppositely arranged, stage portion 4b1 is in distribution discontinuously, in this reality
It applies in example, two notches is respectively included on the outer surface where two longer sides of barricade 4b, stage portion 4b1 does not connect herein
It is distributed continuously.Indentation, there is provided with card wedge 4b2, and card wedge 4b2 is used for the mistake in the second opening 2d of 4 closed above body 2 of lower cover
The seaming slot 2b3 being arranged on the side wall 2b of upper cover body 2 is snapped in journey, to which lower cover 4 and upper cover body 2 to be fixedly mounted.
Barricade 4b is additionally provided with the muscle 4b3 of protrusion in its four corners, and muscle 4b3 is raised up by the upper end of barricade 4b
At least 1mm.For muscle 4b3 discontinuously around barricade 4b, muscle 4b3 is at least continuously distributed in the corner of barricade 4b, covering barricade 4b
Corner, i.e. barricade 4b the corner of the outer peripheries bottom wall 4a height higher than barricade 4b the outer periphery of bottom wall 4a other
The height at position.Specifically, muscle 4b3 is set as the upper end along the inner surface and barricade 4b of barricade 4b in the upper end of barricade 4b
Portion joint extends.Upper surface 4b4s of the barricade 4b in the corner of the outer peripheries bottom wall 4a further includes chamfering.In the present embodiment,
The width of upper end of the width of muscle 4b3 less than barricade 4b.Be located in barricade 4b four corners upper end be both provided with to
The muscle 4b3 of upper protrusion.Meanwhile muscle 4b3 extends at least 10mm on the upper ends barricade 4b from the corner of barricade 4b along barricade 4b.
The muscle 4b3 raised makes in the case where soaking, prevent flow because capillarity along lower cover 4 and upper cover body 2 it
Between gap penetrate into the inner space of upper cover body, when especially for example vehicle jolts in the limiting case, electronic control
Gradient, water droplet accumulate in the corner of barricade 4b because of the reason of gravity to device 1 at an angle relative to horizontal direction
Upper cover body 2 and lower cover 4 connect gap at.Further because of capillary effect, water droplet passes through upper cover body 2 and lower cover 4
The inside of electronic control unit 1 is penetrated at the gap of connection, and the muscle 4b3 raised prevents water droplet to enter electronic control unit 1
Receiving space A in, ensure electronic control unit 1 normal work.Further, muscle 4b3 is not extend to barricade 4b vertical
Height of the upper end i.e. barricade 4b overlapped with the stage portion 4b1 of support electric connector 5 on direction at the first opening 2c is less than
Barricade 4b the corner of the outer peripheries bottom wall 4a height, to convenient when electronic control unit 1 is installed, with printed circuit board
The electric connector 5 that component 3 connects is installed to the first opening 2c.Further, thickness of the barricade 4b at the first opening 2c is less than
Thickness of the barricade 4b at other positions of the outer periphery of bottom wall 4a；Or equal to barricade 4b with the first opening 2c symmetrical positions
The thickness of the outer periphery at place.
In addition, being erected on the inner surface of the bottom wall 4a of lower cover 4 fixed there are two being installed for printed circuit-board assembly 3
Fixed part 41.Two fixed parts 41 are further connected to the opposite inner surface of barricade 4b.In the upper end of fixed part 41, formed
There are the supporting surface 41a of the flat condition of supporting printing board component 3, the height of supporting surface 41a to be connected to less than supporting surface 41a
Barricade 4b height.On these supporting surfaces 41a, it is formed with for 3 fixed second hole 41b of printed circuit-board assembly.In addition,
Muscle 4b3 is not extend to the upper end that barricade 4b is overlapped with the fixed part 41 in vertical direction, is being controlled electronically to convenient
When device 1 is installed, printed circuit-board assembly 3 is fixed with lower cover 4.
Further, two the second hole 41b are right with the first mounting hole 71, the second mounting hole 81 that are arranged on side wall 2b respectively
Together；The first hole 31 being aligned with the 2nd 41b of hole is also equipped on printed circuit-board assembly 3.Fastener such as bolt passes through hole the
The first mounting hole 71, the second mounting hole 81 being arranged on the first hole 31 and upper cover body 2 on two 41b, printed circuit-board assembly 3
When the upper cover body 2 of electronic control unit 1 is installed on the structure position of motor vehicles thus by upper cover body 2, printed circuit board
Component 3 and lower cover 4 are fixed together, and printed circuit-board assembly 3 is also fixed on lower cover with the state supported by each fixed part 41
On body 4.
In the present embodiment, the upper cover body 2 of electronic control unit 1 and the structure position of motor vehicles are by being configured at first
Fastener (not shown) in mounting hole 71, the second mounting hole 81 links together.In order to improve the rigid, reliable of connection
Property and anti-loose ability, fastener use pretension bolt, further, when fastener is metal bolts, electronic control unit 1 is also logical
Metal bolts are crossed to be grounded.
It these are only specific embodiment according to the present utility model, it is all the application's not to limit the application
Any modification, equivalent replacement or improvement etc., should be included in the scope of protection of the utility model made by within spirit and principle
Within.Such as card wedge 4b2 can also be arranged on the side wall 2b of upper shell 2, seaming slot 2b3 can also be arranged in lower housing 4
On barricade 4b.
Claims (15)
1. a kind of electronic control unit (1), which is characterized in that it includes：
Upper cover body (2), the upper cover body (2) include side wall (2b) and roof (2a)；
Lower cover (4), the lower cover (4) include bottom wall (4a) and along the bottom wall (4a) outer periphery to the upper cover body
(2) barricade (4b) that direction extends, height of the barricade (4b) in the corner of the outer periphery the bottom wall (4a) are higher than described
Height of the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)；
The upper cover body (2) and the lower cover (4) are mechanically linked to form receiving space (A)；
Printed circuit-board assembly (3), the printed circuit-board assembly (3) are installed in the receiving space (A).
2. electronic control unit (1) according to claim 1, which is characterized in that have on the inner surface of the bottom wall (4a)
The fixed part (41) that the oriented upper cover body (2) direction extends, the fixed part (41) is for fixing the printed circuit board group
Part (3), the fixed part (41) are connected to the inner surface of the barricade (4b)；It is connected to the barricade of the fixed part (41)
Height of the height of (4b) less than the barricade (4b) in the corner of the outer periphery the bottom wall (4a).
3. electronic control unit (1) according to claim 2, which is characterized in that the side wall (2b) of the upper cover body (2) has
There is the first opening (2c) being connected to the receiving space (A)；Thickness of the barricade (4b) at first opening (2c)
Thickness less than or equal to the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)；The barricade (4b) exists
Height at first opening (2c) is less than the height of corner of the barricade (4b) in the outer periphery the bottom wall (4a).
4. electronic control unit (1) according to any one of claim 1 to 3, which is characterized in that barricade (4b) tool
There are several stage portions (4b1) upwardly extended by bottom wall (4a) of setting on its outer surface, the height of the stage portion (4b1)
Degree is less than the height of the barricade (4b), several described stage portions (4b1) are used to support the side wall (2b).
5. electronic control unit (1) according to claim 4, which is characterized in that the electronic control unit (1) further includes
Electric connector (5), the electric connector (5) connect with the printed circuit-board assembly (3) and are mounted on the side wall (2b)
The first opening (2c), the stage portion (4b1) is additionally operable to support the electric connector (5).
6. electronic control unit (1) according to claim 4, which is characterized in that the stage portion (4b1) is arranged described
Barricade (4b) is on the outer surface of the corner of the outer periphery the bottom wall (4a).
7. electronic control unit (1) according to any one of claim 1 to 3, which is characterized in that the barricade (4b) exists
The height of the corner of bottom wall (4a) outer periphery higher than the barricade (4b) the outer periphery of the bottom wall (4a) other
The height at position at least 1mm.
8. electronic control unit (1) according to claim 7, which is characterized in that the barricade (4b) is in the bottom wall
The upper surface (4b4) of the corner of the outer periphery (4a) further includes chamfering.
9. electronic control unit (1) according to any one of claim 1 to 3, which is characterized in that the upper cover body (2)
It is provided with seaming slot (2b3) on the lower cover (4) outer surface of one of them, card wedge is provided on another outer surface
(4b2), the card wedge (4b2) are snapped in the seaming slot (2b3) and connect the upper cover body (2) with the lower cover (4).
10. electronic control unit (1) according to claim 9, which is characterized in that the upper cover body (2) and the lower cover
Body (4) is made of plastic material.
11. electronic control unit (1) according to claim 5, which is characterized in that the stage portion (4b1) is arranged in institute
Barricade (4b) is stated on the outer surface of the corner of the outer periphery the bottom wall (4a).
12. electronic control unit (1) according to claim 4, which is characterized in that the barricade (4b) is in the bottom wall
Height of the height of the corner of the outer periphery (4a) higher than the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)
Spend at least 1mm.
13. electronic control unit (1) according to claim 5, which is characterized in that the barricade (4b) is in the bottom wall
Height of the height of the corner of the outer periphery (4a) higher than the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)
Spend at least 1mm.
14. electronic control unit (1) according to claim 6, which is characterized in that the barricade (4b) is in the bottom wall
Height of the height of the corner of the outer periphery (4a) higher than the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)
Spend at least 1mm.
15. electronic control unit (1) according to claim 11, which is characterized in that the barricade (4b) is in the bottom wall
Height of the height of the corner of the outer periphery (4a) higher than the barricade (4b) at other positions of the outer periphery of the bottom wall (4a)
Spend at least 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721427961.6U CN207720544U (en) | 2017-10-31 | 2017-10-31 | Electronic control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721427961.6U CN207720544U (en) | 2017-10-31 | 2017-10-31 | Electronic control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207720544U true CN207720544U (en) | 2018-08-10 |
Family
ID=63060788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721427961.6U Active CN207720544U (en) | 2017-10-31 | 2017-10-31 | Electronic control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207720544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020107581A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Movable platform and steering engine thereof |
-
2017
- 2017-10-31 CN CN201721427961.6U patent/CN207720544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020107581A1 (en) * | 2018-11-30 | 2020-06-04 | 深圳市大疆创新科技有限公司 | Movable platform and steering engine thereof |
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