CN106604579B - A kind of annular circuit board buffering vibration insulation structure - Google Patents
A kind of annular circuit board buffering vibration insulation structure Download PDFInfo
- Publication number
- CN106604579B CN106604579B CN201611241230.2A CN201611241230A CN106604579B CN 106604579 B CN106604579 B CN 106604579B CN 201611241230 A CN201611241230 A CN 201611241230A CN 106604579 B CN106604579 B CN 106604579B
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- China
- Prior art keywords
- circuit board
- rubber ring
- baffle
- cabinet base
- vibration insulation
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
- H05K5/0056—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by features for protecting electronic components against vibration and moisture, e.g. potting, holders for relatively large capacitors
Abstract
The present invention relates to a kind of circuit board loop buffer vibration insulation structures, including n baffle, n rubber ring and cabinet base, after wherein first circuit board surrounding is embedded in the first rubber ring, it is placed on the first step of cabinet base, first baffle is fixedly connected on the second step of cabinet base, and the lower surface of first baffle compresses the first rubber ring and is placed in the upper surface of first baffle after second circuit board surrounding is embedded in the second rubber ring；Second baffle is fixedly connected on the third step of cabinet base, and the lower surface of second baffle compresses the second rubber ring, after tertiary circuit plate surrounding is embedded in third rubber ring, it is placed in the upper surface of second baffle, ..., and so on, n-th baffle is fixedly connected on the upper surface of cabinet base, and compress the n-th rubber ring, the buffering vibration insulation structure solves the buffering vibration isolation problems of narrow installation space interior circuit board, it ensure that the existing good buffer shock-absorbing effect of circuit board, and realize being rapidly assembled and disassembled for circuit board.
Description
Technical field
The present invention relates to the bufferings and Vibration Absorbing System Design structure of circuit board in a kind of product of mechanical environment very severe, especially
It is to be related to a kind of annular circuit board buffering vibration insulation structure.
Background technique
In the class items of equipment of certain application fields, application environment is generally relatively more severe, usually along with the vibration of big magnitude
Dynamic and impact, low-frequency range, high band, blast impulse etc., in this case, to guarantee under severe mechanical environment condition
Circuit can work normally, and be typically necessary to circuit board using vibration isolator, it is normal to circuit to reduce extraneous mechanical environment with this
The influence of work.Currently, common circuit board buffering vibration isolation measure mainly uses vibration isolator, such as the vibration isolator of T-shape, this
Vibration isolator vibration isolating effect is good, but needs biggish installation space, meanwhile, it is generallyd use using the vibration isolator circuit board of T " type more
Point installation, the shortcoming of multiple spot installation is to easily cause the amplification of dynamic excitation, if the vibration isolator selection of T " type is improper, electric
Road plate multiple spot mounting arrangement is unreasonable just easily to be caused circuit board local excitation to amplify and circuit dash-board injury is caused to fail.
Summary of the invention
It is an object of the invention to overcome the drawbacks described above of the prior art, a kind of annular circuit board buffering vibration isolation knot is provided
Structure, the buffering vibration insulation structure solve the buffering vibration isolation problems of narrow installation space interior circuit board, ensure that circuit board is existing good
Good buffer shock-absorbing effect, and realize being rapidly assembled and disassembled for circuit board.
What above-mentioned purpose of the invention was mainly achieved by following technical solution:
A kind of circuit board loop buffer vibration insulation structure, including n baffle, n rubber ring and cabinet base, wherein the first electricity
After road plate surrounding is embedded in the first rubber ring, it is placed on the first step of cabinet base, first baffle is fixedly connected on cabinet bottom
On the second step of seat, and the lower surface of first baffle compresses the first rubber ring, and second circuit board surrounding is embedded in the second rubber ring
Afterwards, it is placed in the upper surface of first baffle；Second baffle is fixedly connected on the third step of cabinet base, and second baffle
Lower surface compresses the second rubber ring and is placed in the upper table of second baffle after tertiary circuit plate surrounding is embedded in third rubber ring
Face ... ..., and so on, the n-th baffle is fixedly connected on the upper surface of cabinet base, and compresses the n-th rubber ring, and wherein n is
Positive integer, and n >=1.
In foregoing circuit plate loop buffer vibration insulation structure, the rubber ring is ring structure, and the cross section of rubber ring is
Concave character type, is wrapped in circuit board surrounding side wall and circuit board upper and lower surface leans on the part of proximal wall.
In foregoing circuit plate loop buffer vibration insulation structure, the circuit board upper surface or lower surface lean on proximal wall by rubber
The annular section width L of circle package is greater than or equal to 2 times of rubber ring thickness H.
In foregoing circuit plate loop buffer vibration insulation structure, including first baffle, second baffle, the second rubber ring, first
Rubber ring and cabinet base are placed in the first step of cabinet base after wherein second circuit board surrounding is embedded in the second rubber ring
On, second baffle is fixedly connected on the second step of cabinet base, and the lower surface of second baffle compresses the second rubber ring, the
After one circuit board surrounding is embedded in the first rubber ring, it is placed in the upper surface of second baffle, first baffle is fixedly connected on cabinet bottom
On the upper surface of seat, and compress the first rubber ring.
In foregoing circuit plate loop buffer vibration insulation structure, second rubber ring, the first rubber ring are ring structure,
The cross section of ring structure is concave character type, is wrapped in circuit board surrounding side wall and circuit board upper and lower surface leans on the portion of proximal wall
Point.
In foregoing circuit plate loop buffer vibration insulation structure, the first circuit board, second circuit board upper surface or following table
Face is greater than or equal to 2 times of rubber ring thickness H by the annular section width L that proximal wall is wrapped up by rubber ring.
In foregoing circuit plate loop buffer vibration insulation structure, the first baffle, second baffle are fixed by screws in case
On body pedestal, the first rubber ring is close to by first baffle lower surface, the second rubber ring is close in second baffle lower surface, utilizes
15%~25% decrement realizes the fixation and limit to rubber ring.
In foregoing circuit plate loop buffer vibration insulation structure, second rubber ring, the first rubber ring material be silicon rubber
Glue, thickness H are 1.5~3mm.
In foregoing circuit plate loop buffer vibration insulation structure, the annular size root of second rubber ring, the first rubber ring
Determine that annular size perimeter is 2~4mm smaller than corresponding circuit board perimeter according to the outer dimension of circuit board.
In foregoing circuit plate loop buffer vibration insulation structure, it is mounted between the two neighboring circuit board in cabinet base and stays
There is safe spacing, the safe spacing is greater than 2 times of rubber ring thickness H.
In foregoing circuit plate loop buffer vibration insulation structure, the cabinet base is the hollow structure of polygon, and inside is set
Multi-stage stairs, including first step and second step are set, the first step is the annular to match with second circuit board shape
Continuous structure, the second step are the segmental structure to match with second baffle shape.
In foregoing circuit plate loop buffer vibration insulation structure, the second baffle is ring structure, the ring structure
The auricle for being provided with through-hole is arranged in lateral wall, is fixedly connected with second step in cabinet base by screw.
In foregoing circuit plate loop buffer vibration insulation structure, the first baffle is the polygonal outer shape phase with cabinet base
Matched polygonized structure, the annular flange extended outward to form including limit plate and along one end face of limit plate, the annular
It is provided with through-hole on flange, is formed a fixed connection by screw and cabinet base end face.
Compared with prior art, the present invention has the following advantages:
(1), the present invention will buffer the circuit board in vibration insulation structure and assemble fixation by rubber ring, rather than usually used
Damper needs bigger installation space using damper vibration isolation, and avoiding cannot use accordingly because narrow space causes
Buffering vibration isolation measure defect.
(2), circuit board is embedded in interior by the rubber ring that the present invention is designed by special construction, keeps extraneous excitation equal
Cloth is transmitted on circuit board by rubber ring, is avoided circuit board multiple spot from installing and is led to extraneous excitation amplification.
(3), structure of the invention design, which can be realized, is rapidly assembled and disassembled buffering vibration isolation rubber ring, and circuit board is not required to
It individually to be installed, avoid multiple disassembly, to save the set-up time, simplify installation procedure.
(4), the present invention is designed by structure to cabinet base, can according to need the circuit board of installation different number with
The package assembly of rubber ring, structure expansibility is strong, makes it have wider array of application range.
(5), the present invention is by the planform of each component and the optimization design of size in buffering vibration insulation structure, so that slow
Vibration insulation structure is rushed with more excellent buffer shock-absorbing effect.
(6), buffering vibration insulation structure of the invention can resist the random vibration that root-mean-square value acceleration maximum is more than 30g,
Be also resistant against blast impulse, effectively prevent circuit board because vibrate and impact it is excessive caused by fail.
Detailed description of the invention
Fig. 1 is the exploded view of present invention buffering vibration insulation structure.
Fig. 2 is the sectional view of present invention buffering vibration insulation structure.
Fig. 3 is the structure chart and enlarged cross-sectional view of rubber ring in the present invention, and wherein Fig. 3 a is the structure chart of rubber ring,
Fig. 3 b is the cross-sectional view of the structure of rubber ring, and Fig. 3 c is the enlarged cross-sectional view of rubber ring.
Fig. 4 is the structure chart of first baffle in the present invention.
Fig. 5 is the structure chart of second baffle in the present invention.
Fig. 6 is the schematic diagram of cabinet base in the present invention, and wherein Fig. 6 a is cabinet base structure chart, and Fig. 6 b is cabinet base
Sectional view.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
Circuit board loop buffer vibration insulation structure of the present invention can install multiple circuit boards, which specifically includes n
A baffle, n rubber ring and cabinet base are placed in cabinet base after wherein first circuit board surrounding is embedded in the first rubber ring
First step on, first baffle is fixedly connected on the second step of cabinet base, and the lower surface of first baffle compresses the
One rubber ring after second circuit board surrounding is embedded in the second rubber ring, is placed in the upper surface of first baffle, and second baffle is fixed to be connected
It connects on the third step of cabinet base, and the lower surface of second baffle compresses the second rubber ring, the insertion of tertiary circuit plate surrounding
After third rubber ring, it is placed in the upper surface ... of second baffle, and so on, the n-th baffle is fixedly connected on cabinet base
On upper surface, and the n-th rubber ring is compressed, wherein n is positive integer, and n >=1.
Below to be described in detail for installing the buffering vibration insulation structure of two circuit boards:
It is as shown in Figure 1 the exploded view of present invention buffering vibration insulation structure, Fig. 2 is the section of present invention buffering vibration insulation structure
Figure, circuit board loop buffer vibration insulation structure includes first baffle 1, second baffle 4, the second rubber ring 2, the first rubber as seen from the figure
Circle 7 and cabinet base 6 are placed in the first step of cabinet base 6 after wherein 5 surrounding of second circuit board is embedded in the second rubber ring 2
On 603, second baffle 4 is fixedly connected on the second step 602 of cabinet base 6, and the lower surface of second baffle 4 is close to compress
Second rubber ring 2 is placed in the upper surface of second baffle 4, first baffle after 3 surrounding of first circuit board is embedded in the first rubber ring 7
1 is fixedly connected on the upper surface 601 of cabinet base 6, and is close to compress the first rubber ring 7.
It is illustrated in figure 3 the structure chart and enlarged cross-sectional view of rubber ring in the present invention, wherein Fig. 3 a is rubber ring
Structure chart, Fig. 3 b are the cross-sectional view of the structure of rubber ring, and Fig. 3 c is the enlarged cross-sectional view of rubber ring.Second rubber ring, first
Rubber ring is ring structure, and cross section is concave character type, i.e. U-shaped structure, is wrapped on circuit board surrounding side wall and circuit board
The part of proximal wall is leaned in lower surface.As shown in Figure 3b, proximal wall is leaned in first circuit board 3,5 upper surface of second circuit board or lower surface
The annular section width L wrapped up by rubber ring is greater than or equal to 2 times of rubber ring thickness H.L is 3mm in the present embodiment, and H is
1.5mm。
First circuit board 3, second circuit board 5 are all nested in rubber ring to reach buffering and vibration isolation effect, ring junction
Structure can change according to the shape of circuit board and change, all arc transitions of ring structure, extraneous power, displacement, acceleration
Equal excitation is relatively uniform when will be transmitted on circuit board by rubber ring, will not amplify again dynamic excitation, lead to circuit board
Cross magnitude damage failure.
Second rubber ring 2, the first rubber ring 7 material be silicon rubber, it is silastic material shrinkage, high-low temperature resistant, resistance to
Aging is good.Second rubber ring 2, the thickness of the first rubber ring 7 are uniform, are H, and it is 1.5mm in the present embodiment that H, which is 1.5~3mm,.
Second rubber ring 2, the first rubber ring 7 annular size determined, annular size according to the outer dimension of circuit board
Perimeter is less than 2~4mm of corresponding circuit board perimeter.Not only can guarantee circuit board in this way can effectively buffer and vibration isolation, but also can have
Conducive to the Fast Installation of circuit board.
It is illustrated in figure 4 the structure chart of first baffle in the present invention.First baffle 1 be with outside the polygon of cabinet base 6
The polygonized structure that shape matches, the annular flange extended outward to form including limit plate 101 and along 101 1 end faces of limit plate
102, wherein limit plate 101 is provided with through-hole on the annular flange 102, passes through screw and cabinet bottom perpendicular to annular flange 102
6 end faces of seat form a fixed connection.
It is illustrated in figure 5 the structure chart of second baffle in the present invention.Second baffle 4 is ring structure, ring structure it is outer
The auricle 402 for being provided with through-hole is arranged in side wall, is fixedly connected with second step 602 in cabinet base 6 by screw.
The first rubber ring 7 is close to by 1 lower surface of first baffle in the present invention, the second rubber is close in 4 lower surface of second baffle
Cushion rubber 2 realizes fixation and limit to rubber ring using 15%~25% decrement, is 20% in the present embodiment.
It is illustrated in figure 6 the schematic diagram of cabinet base in the present invention, wherein Fig. 6 a is cabinet base structure chart, and Fig. 6 b is case
The sectional view of body pedestal.Cabinet base 6 is the hollow structure of polygon, inside setting multi-stage stairs, including 603 He of first step
Second step 602, first step 603 are the annular continuous structure to match with 5 shape of second circuit board, and second step 602 is
The segmental structure to match with 4 shape of second baffle, by Fig. 6 a it is found that segmental structure can make full use of in cabinet base 6
Portion space keeps buffering vibration insulation structure more compact.
Present invention installing bottom layer second circuit board 5 first, 5 surrounding of second circuit board is inlaid into the second rubber ring 2, is made
202,203,205 faces of the second rubber ring 2 are bonded with second circuit board 5, since the size of rubber ring 2 is omited than 5 size of circuit board
It is small, it is ensured that rubber ring 2 is fitted closely with circuit board 5.Circuit board 5 with rubber ring 2 is put into cabinet base 6 by fixture
First step 603 on, be bonded 206 faces of rubber ring 2 with the step surface of cabinet base 6.It, will after circuit board 5 is installed
Second baffle 4 is packed into cabinet base 6 to the auricle 402 of second baffle 4 and the second step 602 of cabinet base 6 and is bonded, and passes through spiral shell
Nail is fixed by second baffle 4.The spacing tolerance on end face 401 to 402 surface of auricle is+0.2~+0.3mm in second baffle 4, can
It is in compressive state so that rubber ring is effectively ensured, 201 faces of the end face 401 and the second rubber ring 2 that guarantee second baffle 4 are closely pasted
It closes.Secondly installation upper layer first circuit board 3, is equally embedded into the first rubber ring 7, is then charged into first baffle 1 and is consolidated
It is fixed.
It is mounted between the two neighboring circuit board in cabinet base 6 there are safe spacing, which is greater than rubber
2 times for enclosing thickness H are 3mm or more in the present embodiment.
The present invention buffers vibration isolation structural principle are as follows:
Annular vibration-proof structure can be applied to big magnitude vibration or impact circuit board part Vibration Absorption Designing.Wherein ring-shaped rubber
Circle all surrounds circuit board surrounding, and rubber ring can absorb portion of energy when vibration or impact energy pass through rubber ring, to make
Circuit board reaches effectiveness in vibration suppression.Secondly, the present invention is by the strict control to structure partial critical size and to rubber ring
The control of critical size makes rubber ring there are certain decrement, and guarantee on circuit board component in vibration environment without impinging on
Other structures.
The above, optimal specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (10)
1. a kind of circuit board loop buffer vibration insulation structure, it is characterised in that: including first baffle (1), second baffle (4), second
Rubber ring (2), the first rubber ring (7) and cabinet base (6), wherein second circuit board (5) surrounding insertion the second rubber ring (2)
Afterwards, it is placed on the first step (603) of cabinet base (6), second baffle (4) is fixedly connected on the second of cabinet base (6)
On step (602), and the lower surface of second baffle (4) compresses the second rubber ring (2), first circuit board (3) surrounding insertion first
After rubber ring (7), it is placed in the upper surface of second baffle (4), first baffle (1) is fixedly connected on the upper end of cabinet base (6)
On face (601), and compress the first rubber ring (7).
2. a kind of circuit board loop buffer vibration insulation structure according to claim 1, it is characterised in that: second rubber ring
(2), the first rubber ring (7) is ring structure, and the cross section of ring structure is concave character type, be wrapped in circuit board surrounding side wall with
And circuit board upper and lower surface leans on the part of proximal wall.
3. a kind of circuit board loop buffer vibration insulation structure according to claim 2, it is characterised in that: the first circuit board
(3), second circuit board (5) upper surface or lower surface are greater than or equal to by proximal wall by the annular section width L that rubber ring wraps up
2 times of rubber ring thickness H.
4. a kind of circuit board loop buffer vibration insulation structure according to claim 1, it is characterised in that: the first baffle
(1), second baffle (4) is fixed by screws on cabinet base (6), is close to the first rubber by first baffle (1) lower surface
It encloses (7), the second rubber ring (2) are close in second baffle (4) lower surface, are realized using 15%~25% decrement to rubber ring
Fixed and limit.
5. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: described
Two rubber rings (2), the first rubber ring (7) material be silicon rubber, thickness H be 1.5~3mm.
6. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: described
Two rubber rings (2), the annular size of the first rubber ring (7) are determining according to the outer dimension of circuit board, and annular size perimeter compares
Small 2~the 4mm of circuit board perimeter answered.
7. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: be mounted on
There are safe spacing between two neighboring circuit board in cabinet base (6), the safe spacing is greater than the 2 of rubber ring thickness H
Times.
8. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: the case
Body pedestal (6) is the hollow structure of polygon, inside setting multi-stage stairs, including first step (603) and second step
(602), the first step (603) is the annular continuous structure to match with second circuit board (5) shape, the second step
(602) segmental structure to match with second baffle (4) shape.
9. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: described
Two baffles (4) are ring structure, and the lateral wall setting of the ring structure is provided with the auricle (402) of through-hole, with cabinet base (6)
Interior second step (602) is fixedly connected by screw.
10. a kind of circuit board loop buffer vibration insulation structure described according to claim 1~one of 4, it is characterised in that: described
One baffle (1) is the polygonized structure to match with the polygonal outer shape of cabinet base (6), including limit plate (101) with along limit
The annular flange (102) that position plate (101) end faces extend outward to form is provided with through-hole on the annular flange (102), passes through
Screw forms a fixed connection with cabinet base (6) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241230.2A CN106604579B (en) | 2016-12-29 | 2016-12-29 | A kind of annular circuit board buffering vibration insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241230.2A CN106604579B (en) | 2016-12-29 | 2016-12-29 | A kind of annular circuit board buffering vibration insulation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106604579A CN106604579A (en) | 2017-04-26 |
| CN106604579B true CN106604579B (en) | 2019-06-18 |
Family
ID=58603913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611241230.2A Active CN106604579B (en) | 2016-12-29 | 2016-12-29 | A kind of annular circuit board buffering vibration insulation structure |
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| CN (1) | CN106604579B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107396555A (en) * | 2017-09-01 | 2017-11-24 | 深圳熙斯特新能源技术有限公司 | A kind of electric automobile All-in-One controller process auxiliary drive electric capacity protection structure |
| CN108012492B (en) * | 2017-12-26 | 2020-07-07 | 四川华丰企业集团有限公司 | Vehicle-mounted computer control box |
| CN108882608A (en) * | 2018-06-08 | 2018-11-23 | 深圳市玛伽克蓝箭科技有限公司 | The circuit board mounting structure in integrated controller on carrier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516149A1 (en) * | 1991-05-31 | 1992-12-02 | Nippondenso Co., Ltd. | Electronic device |
| CN1332908A (en) * | 1998-12-30 | 2002-01-23 | 艾利森公司 | Simple enclosure for electronic components |
| CN203072272U (en) * | 2012-12-17 | 2013-07-17 | 深圳市浪尖设计有限公司 | Vibration resistant housing structure and electronic product |
-
2016
- 2016-12-29 CN CN201611241230.2A patent/CN106604579B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516149A1 (en) * | 1991-05-31 | 1992-12-02 | Nippondenso Co., Ltd. | Electronic device |
| CN1332908A (en) * | 1998-12-30 | 2002-01-23 | 艾利森公司 | Simple enclosure for electronic components |
| CN203072272U (en) * | 2012-12-17 | 2013-07-17 | 深圳市浪尖设计有限公司 | Vibration resistant housing structure and electronic product |
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| Publication number | Publication date |
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| CN106604579A (en) | 2017-04-26 |
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