CN208076074U - A kind of dynamometry crash sensor - Google Patents
A kind of dynamometry crash sensor Download PDFInfo
- Publication number
- CN208076074U CN208076074U CN201820285272.4U CN201820285272U CN208076074U CN 208076074 U CN208076074 U CN 208076074U CN 201820285272 U CN201820285272 U CN 201820285272U CN 208076074 U CN208076074 U CN 208076074U
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- Prior art keywords
- circuit board
- brake plate
- crash sensor
- dynamometry
- substrate
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- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000004888 barrier function Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a kind of dynamometry crash sensor, belongs to sensor technical field.It solves the problems such as existing crash sensor detection zone is small, sensing accuracy is low.This dynamometry crash sensor, including shell and substrate, inner cavity is formed between substrate and shell, and circuit board is provided in inner cavity, resistance sensing chip is provided on circuit board, the lower end of circuit board has output pin, out connector is connected on output pin, the top of shell is covered with brake plate, elastic member is set between brake plate and substrate, pin plate is provided between brake plate and circuit board, there is cone angle at the center of pin plate upper surface, there is the annular groove being recessed inwardly at its lower face and resistance sensing chip opposite position, the surface of annular groove is coated with conductive film layer, the lower end of brake plate has the extruding item towards pin plate protrusion, item is squeezed for squeezing annular groove.The utility model has many advantages, such as that detection zone is big, detection sensing accuracy is high.
Description
Technical field
The utility model belongs to sensor technical field, is related to a kind of sensor, more particularly to a kind of dynamometry collision sensing
Device.
Background technology
Crash sensor is a kind of sensor being used for detecting power, mainly by the size of measuring force come trigger sensor
Realize a certain purpose to reach, application of the crash sensor mainly on safe automobile air bag is relatively broad, with the epoch into
Step, many manufacturers begin to focus on the product of life kind, crash sensor are applied in life, such as mechanical engineering, dance
Platform machinery, medical technology etc. is convenient, they can also be used for automated guided vehicle or even household and commercial furniture, for example, can make
Detect whether surface or component are collided or hit with barrier with crash sensor.Sensor can be mounted on power-actuated family
In the component of tool automatically moved, such as chair/sofa or desk to be to detect collision, automatic movable part refer to be not manual
The furniture of driving or a part for fixture prevent moving parts damage barrier or injury in electric furniture such as chair/sofa
Neighbouring people or pet is critically important, when encountering barrier, crash sensor is needed to signal to motor controller to stop moving
It is dynamic.
Mechanical induction mode is all used mostly for the sensor of such product design on existing market, with low
The characteristics of cost, but the shortcomings that it there is a problem of is also it will be apparent that there are detection zones is small, sensing accuracy is low.
Utility model content
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, is provided a kind of applied widely
Dynamometry crash sensor general, detection zone is big, detection sensing accuracy is high.
The purpose of this utility model can be realized by following technical proposal：A kind of dynamometry crash sensor, feature exist
In, including shell and the substrate for being set to housing bottom, it is formed with hollow inner cavity between the substrate and shell, and interior
Circuit board is provided in chamber, the upper surface of the circuit board is provided with resistance sensing chip, and the lower end of circuit board has across substrate
External output pin is extended to, is connected on the output pin and is matched with circuit board, for realizing electric signal output
Out connector, the top of the shell is covered with brake plate, elastic member is arranged between the brake plate and substrate,
It is provided with pin plate between the brake plate and circuit board, has at the center of the pin plate upper surface and raises up, is resisted against
There is the annular groove being recessed inwardly at the cone angle of brake plate lower face, lower face and resistance sensing chip opposite position, it is described
The surface of annular groove is coated with conductive film layer, and the lower end of the brake plate has the extruding item towards pin plate protrusion, the extruding
Item is for squeezing annular groove.
The operation principle of the utility model：When the forced compression of crash sensor upper end, brake plate moves downward, in order to prevent
Brake plate moves downward the damage that excessive velocities cause parts, and the elastic structure for damping is provided between substrate and braking
Part, when brake plate moves downward, the extruding item of lower end is resisted against pin plate upper surface, and annular groove stress is caused to generate deformation, when
When conductive film layer is in contact with resistance sensing chip, resistance therebetween changes, and inductively or capacitively and generates output to indicate to send out
The raw collision with barrier, when barrier is removed and annular groove restores its shape, resistance sensing chip is no longer by conductive film
Layer short circuit, the change of resistance or the end for restoring to indicate collision now.
In a kind of above-mentioned dynamometry crash sensor, the edge of the brake has the packet for being bent downwardly extension
Side, the lower end of the brake, which has, limits item, and the restriction item is matched to be formed with bound edge and is inserted into for elastic component
Limit slot.The phenomenon that dislocation can be susceptible to avoid elastic component in unexpected stress by limiting the use of slot improves sensor
Whole damping stability.
In a kind of above-mentioned dynamometry crash sensor, the resistance sensing chip include induction disk body in the form of annular discs with
And it is distributed in the induction baseline on disk body, the induction baseline is rotated in a circumferential direction distribution on the basis of incuding disk body center.It improves
The cooperation sensing accuracy of resistance sensing chip and the conductive film layer in annular groove.
In a kind of above-mentioned dynamometry crash sensor, connector is provided between the output pin and out connector
Protection cap offers the connecting hole being connect with out connector for output pin, the company at the connector protective cover center
It connects and is provided with hook in device protection cap, the hook, which upwardly extends, to be arranged on circuit board, the sheet of the connector protective cover
Body is resisted against on substrate, and is matched substantially.Connector protective cover improves the stability of crash sensor connection.
In a kind of above-mentioned dynamometry crash sensor, the top of the brake, which is connected, effectively amplifies receiver board, described
The width of amplification board is more than the diameter of shell.Promote the detection range of load cell.
Compared with prior art, this dynamometry crash sensor setting elastic member carrys out the impact of buffer sensor stress, again
Can when stress cancels Fast Restoration brake plate position so that pin plate deformation is replied, facilitate next time detection, have
Advantage easy to detect, detection zone is big, detection sensing accuracy is high.
Description of the drawings
Fig. 1 is the overall structure sectional view of this dynamometry crash sensor.
Fig. 2 is this dynamometry crash sensor partial structural diagram.
In figure, 1, shell；2, substrate；3, inner cavity；4, circuit board；5, resistance sensing chip；6, output pin；7, output connection
Device；8, brake plate；9, elastic component；10, pin plate；11, cone angle；12, annular groove；13, conductive film layer；14, item is squeezed；15, it wraps
Side；16, item is limited；17, slot is limited；18, incude disk body；19, incude baseline；20, connector protective cover；21, connecting hole；22,
Hook；23, power amplifies receiver board.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 and Figure 2, this dynamometry crash sensor, including shell 1 and the substrate 2 for being set to 1 bottom of shell, base
It is formed with hollow inner cavity 3 between plate 2 and shell 1, and is provided with circuit board 4 in inner cavity 3, the upper surface of circuit board 4 is provided with
Resistance sensing chip 5, the lower end of circuit board 4, which has, extends to external output pin 6 across substrate 2, is connected on output pin 6
It is matched with circuit board 4, for realizing the out connector 7 of electric signal output, the top of shell 1 is covered with brake plate 8, braking
Elastic member 9 is set between plate 8 and substrate 2, pin plate 10 is provided between brake plate 8 and circuit board 4,10 upper surface of pin plate
There is the cone angle 11 for 8 lower face of brake plate that raises up, is resisted against, lower face position corresponding with resistance sensing chip 5 at center
There is the annular groove 12 being recessed inwardly, the surface of annular groove 12 to be coated with conductive film layer 13 at the place of setting, and the lower end of brake plate 8 has court
The extruding item 14 of 10 protrusion of pin plate, squeezes item 14 for squeezing annular groove 12.
In order to improve the damping stability of sensor entirety, the edge of brake has the bound edge for being bent downwardly extension
15, the lower end of brake, which has, limits item 16, limits item 16 and matches the restriction for being formed with and being inserted into for elastic component 9 with bound edge 15
Slot 17.
In order to improve the cooperation sensing accuracy of resistance sensing chip 5 and the conductive film layer 13 in annular groove 12, resistance sensing chip 5
Including induction disk body 18 in the form of annular discs and the induction baseline 19 being distributed on disk body, induction baseline 19 is to incude in disk body 18
Rotate in a circumferential direction distribution on the basis of the heart.
In order to improve the stability of crash sensor connection, connection is provided between output pin 6 and out connector 7
Device protection cap 20 offers the connecting hole 21 being connect with out connector 7 for output pin 6 at 20 center of connector protective cover,
Hook 22 is provided on connector protective cover 20, hook 22, which upwardly extends, to be arranged on circuit board 4, the sheet of connector protective cover 20
Body is resisted against on substrate 2, and is matched substantially.
In order to promote the detection range of load cell, the top of brake, which is connected, effectively amplifies receiver board 23, amplification board
Width be more than shell 1 diameter.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein shell 1, substrate 2, inner cavity 3, circuit board 4, resistance sensing chip 5, output pin 6,
Out connector 7, elastic component 9, pin plate 10, cone angle 11, annular groove 12, conductive film layer 13, squeezes item 14, bound edge at brake plate 8
15, it limits item 16, limit slot 17, induction disk body 18, induction baseline 19, connector protective cover 20, connecting hole 21, hook 22, power
Amplify the terms such as receiver board 23, but it does not preclude the possibility of using other terms.The use of these items is only for more square
Just the essence of the utility model is described and explained；It is construed as any one of the additional limitations all and is and the utility model
What spirit was disagreed.
Claims (5)
1. a kind of dynamometry crash sensor, which is characterized in that including shell (1) and be set to the substrate of shell (1) bottom
(2), it is formed with hollow inner cavity (3) between the substrate (2) and shell (1), and is provided with circuit board (4) in inner cavity (3),
The upper surface of the circuit board (4) is provided with resistance sensing chip (5), and the lower end of circuit board (4) has to be extended to across substrate (2)
External output pin (6) is connected on the output pin (6) and is matched with circuit board (4), defeated for realizing electric signal
The out connector (7) gone out, the top of the shell (1) are covered with brake plate (8), the brake plate (8) and substrate (2) it
Between setting elastic member (9), pin plate (10), the pin plate (10) are provided between the brake plate (8) and circuit board (4)
There is the cone angle (11) of brake plate (8) lower face that raises up, is resisted against, lower face to incude with resistance at the center of upper surface
There is the annular groove (12) being recessed inwardly, the surface of the annular groove (12) to be coated with conductive film layer at piece (5) opposite position
(13), the lower end of the brake plate (8) has the extruding item (14) towards pin plate (10) protrusion, and the extruding item (14) is for squeezing
Press annular groove (12).
2. a kind of dynamometry crash sensor according to claim 1, which is characterized in that the edge of the brake plate has
It is bent downwardly the bound edge (15) of extension, the lower end of the brake plate, which has, limits item (16), the restriction item (16) and bound edge
(15) the restriction slot (17) for being formed with and being inserted into for elastic component (9) is matched.
3. a kind of dynamometry crash sensor according to claim 1, which is characterized in that resistance sensing chip (5) packet
The induction baseline (19) for including induction disk body (18) in the form of annular discs and being distributed on disk body, the induction baseline (19) is to feel
Answer the distribution that rotates in a circumferential direction on the basis of disk body (18) center.
4. a kind of dynamometry crash sensor according to claim 1, which is characterized in that the output pin (6) and output
It is provided with connector protective cover (20) between connector (7), offers at connector protective cover (20) center and draws for output
The connecting hole (21) that foot (6) is connect with out connector (7) is provided with hook on the connector protective cover (20), described
Hook, which upwardly extends, to be arranged on circuit board (4), and the ontology of the connector protective cover (20) is resisted against on substrate (2), with base
Originally it matches.
5. a kind of dynamometry crash sensor according to claim 1, which is characterized in that the top of the brake plate is fixed with
Power amplifies receiver board (23), and the width of the amplification receiver board is more than the diameter of shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285272.4U CN208076074U (en) | 2018-03-01 | 2018-03-01 | A kind of dynamometry crash sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285272.4U CN208076074U (en) | 2018-03-01 | 2018-03-01 | A kind of dynamometry crash sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208076074U true CN208076074U (en) | 2018-11-09 |
Family
ID=64038345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820285272.4U Expired - Fee Related CN208076074U (en) | 2018-03-01 | 2018-03-01 | A kind of dynamometry crash sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208076074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111772341A (en) * | 2020-08-31 | 2020-10-16 | 江西志超科教设备有限公司 | Student desk and chair capable of storing articles |
| CN113993670A (en) * | 2019-07-12 | 2022-01-28 | 松下知识产权经营株式会社 | Hand control system and hand control method |
-
2018
- 2018-03-01 CN CN201820285272.4U patent/CN208076074U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113993670A (en) * | 2019-07-12 | 2022-01-28 | 松下知识产权经营株式会社 | Hand control system and hand control method |
| CN111772341A (en) * | 2020-08-31 | 2020-10-16 | 江西志超科教设备有限公司 | Student desk and chair capable of storing articles |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |