CN110132383A - Sealed weighing sensor - Google Patents
Sealed weighing sensor Download PDFInfo
- Publication number
- CN110132383A CN110132383A CN201910257456.9A CN201910257456A CN110132383A CN 110132383 A CN110132383 A CN 110132383A CN 201910257456 A CN201910257456 A CN 201910257456A CN 110132383 A CN110132383 A CN 110132383A
- Authority
- CN
- China
- Prior art keywords
- elastic portion
- fixed
- overload protection
- main body
- protection block
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/14—Beams
- G01G21/16—Beams of composite construction; Connections between different beams
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/30—Means for preventing contamination by dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
- G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Force In General (AREA)
Abstract
The invention discloses a kind of sealed weighing sensors.A kind of sealed weighing sensor of the present invention, comprising: stress end；Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes: elastic portion main body, and the elastic portion main body includes whole integrally formed first spring beam and the second spring beam；The elastic portion main body is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；Overload protection block; the overload protection block setting is placed in through slot in the overload protection block; one end of the overload protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, and the other end and the overload protection block place through slot and be respectively formed upper gap and underclearance close to one end of the stress end.Beneficial effects of the present invention: being not easy dirt deposits, easy to clean.
Description
Technical field
The present invention relates to weighing fields, and in particular to a kind of sealed weighing sensor.
Background technique
Weighing sensor is actually a kind of device that quality signal is changed into measurable electric signal output.With sensing
Device will should first consider actual working environment locating for sensor, this point selects weighing sensor most important to correct, its relationship
It can be worked normally to sensor and its safety and service life, or even the reliability and safety of entire weighing apparatus.Claiming
In the basic conception and evaluation method for retransmitting sensor the key technical indexes, new and old state indicates the difference of matter.Mainly there are S type, cantilever
Several patterns such as type, spoke type, plate ring type, bellows-type, bridge-type, column casing formula.
There are following technical problems for traditional technology:
Existing cantilever style weighing sensor is very easy to dirt deposits, and not easy to clean, therefore the biography of this structure
Sensor is not suitable for using in the occasion for being frequently necessary to cleaning, such as the application of some food and drink weighing-appliances.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sealed weighing sensors, it is not easy to which dirt deposits are easy
Cleaning.
In order to solve the above-mentioned technical problems, the present invention provides a kind of sealed weighing sensors, comprising:
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；Institute
It states elastic portion main body and is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, the mistake
The one end for carrying protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with
The overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, are separately positioned on the upper end of first spring beam
The lower end surface in face and second spring beam；And
Column sealing shell, the column sealing shell fix the elastic portion main body respectively by way of laser welding
To seal the elastic portion main body, the side of the column sealing shell concaves；
Fixed end, the fixed end is fixedly connected with the elastic portion far from the stress end by laser welding
One end, the fixed end include:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board will be described
The resistance of resistance strain gage is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing on the leading flank of the fixed end bodies, adopt by sealing
It is welded with the mode of laser welding；And
First cable, first cable are fixedly connected on one of the fixed end bodies far from the elastic portion main body
End, first cable are electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
A kind of sealed weighing sensor, comprising:
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；Institute
It states elastic portion main body and is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, the mistake
The one end for carrying protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with
The overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, are separately positioned on the upper end of first spring beam
The lower end surface in face and second spring beam；And
Column sealing shell, the column sealing shell fix the elastic portion main body respectively by way of laser welding
To seal the elastic portion main body, the sectional area at the middle part of the side of the column sealing shell is less than the sectional area at both ends；
Fixed end, the fixed end is fixedly connected with the elastic portion far from the stress end by laser welding
One end, the fixed end include:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board will be described
The resistance of resistance strain gage is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing on the leading flank of the fixed end bodies, adopt by sealing
It is welded with the mode of laser welding；And
First cable, first cable are fixedly connected on one of the fixed end bodies far from the elastic portion main body
End, first cable are electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
A kind of sealed weighing sensor, comprising:
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；Institute
It states elastic portion main body and is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, the mistake
The one end for carrying protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with
The overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, are separately positioned on the upper end of first spring beam
The lower end surface in face and second spring beam；And
Column sealing shell, the column sealing shell fix the elastic portion main body respectively by way of laser welding
To seal the elastic portion main body, the shape of the column sealing shell be turned around by inner concave curve around rotation axis rotation and
At；
Fixed end, the fixed end is fixedly connected with the elastic portion far from the stress end by laser welding
One end, the fixed end include:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board will be described
The resistance of resistance strain gage is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing on the leading flank of the fixed end bodies, adopt by sealing
It is welded with the mode of laser welding；And
First cable, first cable are fixedly connected on one of the fixed end bodies far from the elastic portion main body
End, first cable are electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
Beneficial effects of the present invention:
It is not easy dirt deposits, it is easy to clean.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the sealed weighing sensor of the present invention.
Fig. 2 is the perspective view of the explosion of the sealed weighing sensor of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Refering to fig. 1 and Fig. 2, a kind of sealed weighing sensor, comprising:
Stress end 100；
Elastic portion 200, one end laser welding of the elastic portion are fixedly connected with the stress end, the elastic portion packet
It includes:
Elastic portion main body 210, the elastic portion main body include whole integrally formed first spring beam 211 and the second elasticity
Beam 212；The elastic portion main body is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam
213；
Overload protection block 220, the overload protection block setting is placed in through slot in the overload protection block, described
One end of overload protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end
Through slot, which is placed, with the overload protection block is respectively formed upper gap and underclearance close to one end of the stress end；With
And
Resistance strain gage 230, the quantity of the resistance strain gage are two, are separately positioned on the upper of first spring beam
The lower end surface of end face and second spring beam；And
Column sealing shell 240, the column sealing shell fix the elastic portion respectively by way of laser welding
To seal the elastic portion main body, the side of the column sealing shell concaves main body；
Fixed end 300, the fixed end is fixedly connected with the elastic portion far from the force side by laser welding
The one end in portion, the fixed end include:
Fixed end bodies 310；
First circuit board 320, the first circuit board are located in the fixed end bodies, and the first circuit board is by institute
The resistance for stating resistance strain gage is converted into electric signal；
Fixed closing panel 330, the fixed end cover plate for sealing is on the leading flank of the fixed end bodies, sealing
It is welded by the way of laser welding；And
First cable 340, first cable are fixedly connected on the fixed end bodies far from the elastic portion main body
One end, first cable is electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
A kind of sealed weighing sensor, comprising:
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；Institute
It states elastic portion main body and is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, the mistake
The one end for carrying protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with
The overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, are separately positioned on the upper end of first spring beam
The lower end surface in face and second spring beam；And
Column sealing shell, the column sealing shell fix the elastic portion main body respectively by way of laser welding
To seal the elastic portion main body, the sectional area at the middle part of the side of the column sealing shell is less than the sectional area at both ends；
Fixed end, the fixed end is fixedly connected with the elastic portion far from the stress end by laser welding
One end, the fixed end include:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board will be described
The resistance of resistance strain gage is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing on the leading flank of the fixed end bodies, adopt by sealing
It is welded with the mode of laser welding；And
First cable, first cable are fixedly connected on one of the fixed end bodies far from the elastic portion main body
End, first cable are electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
A kind of sealed weighing sensor, comprising:
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；Institute
It states elastic portion main body and is being equipped with overload protection block placement through slot between the first spring beam and the second spring beam；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, the mistake
The one end for carrying protection block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with
The overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, are separately positioned on the upper end of first spring beam
The lower end surface in face and second spring beam；And
Column sealing shell, the column sealing shell fix the elastic portion main body respectively by way of laser welding
To seal the elastic portion main body, the shape of the column sealing shell be turned around by inner concave curve around rotation axis rotation and
At；
Fixed end, the fixed end is fixedly connected with the elastic portion far from the stress end by laser welding
One end, the fixed end include:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board will be described
The resistance of resistance strain gage is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing on the leading flank of the fixed end bodies, adopt by sealing
It is welded with the mode of laser welding；And
First cable, first cable are fixedly connected on one of the fixed end bodies far from the elastic portion main body
End, first cable are electrically connected first circuit board.
The electric signal is digital signal in one of the embodiments,.
The column sealing shell is stainless steel material in one of the embodiments,.
The fixed closing panel is stainless steel material in one of the embodiments,.
The width of the upper gap and underclearance is equal in one of the embodiments,.
Beneficial effects of the present invention:
It is not easy dirt deposits, it is easy to clean.Specifically, the side of column sealing shell concaves, and such sensor exists
When cleaning, cleaning solution is not easy to remain in the surface of sensor.Simultaneously as side indent, cleaning solution is not easy to be stained with bullet
Property portion and stress end, fixed end laser welding at, make not allowing at laser welding perishable, service life be provided, is guaranteed
Welded seal effect.It is whole easy to clean using non-porous trough design as fixed closing panel.Using built-in overload protection
The mode of block reaches overload protection, and easy to clean.The setting of overload protection block is being located at the in the elastic portion main body
Overload protection block between one spring beam and the second spring beam places through slot, reaches good cooperation with the design of two beam types, i.e.,
Keep the offset load resistance of two beams has overload protection again.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of sealed weighing sensor characterized by comprising
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；The bullet
Property portion's main body between the first spring beam and the second spring beam be equipped with overload protection block place through slot；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, and the overload is protected
One end of guard block block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with it is described
Overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, be separately positioned on first spring beam upper surface and
The lower end surface of second spring beam；And
Column sealing shell, the column sealing shell fixed respectively by way of laser welding the elastic portion main body to
The elastic portion main body is sealed, the side of the column sealing shell concaves；
Fixed end, the fixed end is fixedly connected with one of the elastic portion far from the stress end by laser welding
End, the fixed end includes:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board is by the resistance
The resistance of foil gauge is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing is on the leading flank of the fixed end bodies, and sealing is using sharp
The mode of photocoagulation is welded；And
First cable, first cable are fixedly connected on the one end of the fixed end bodies far from the elastic portion main body,
First cable is electrically connected first circuit board.
2. weighing sensor as described in claim 1, which is characterized in that the electric signal is digital signal.
3. weighing sensor as described in claim 1, which is characterized in that the column sealing shell is stainless steel material.
4. weighing sensor as described in claim 1, which is characterized in that the fixed closing panel is stainless steel material.
5. a kind of sealed weighing sensor characterized by comprising
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；The bullet
Property portion's main body between the first spring beam and the second spring beam be equipped with overload protection block place through slot；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, and the overload is protected
One end of guard block block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with it is described
Overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, be separately positioned on first spring beam upper surface and
The lower end surface of second spring beam；And
Column sealing shell, the column sealing shell fixed respectively by way of laser welding the elastic portion main body to
The elastic portion main body is sealed, the sectional area at the middle part of the side of the column sealing shell is less than the sectional area at both ends；
Fixed end, the fixed end is fixedly connected with one of the elastic portion far from the stress end by laser welding
End, the fixed end includes:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board is by the resistance
The resistance of foil gauge is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing is on the leading flank of the fixed end bodies, and sealing is using sharp
The mode of photocoagulation is welded；And
First cable, first cable are fixedly connected on the one end of the fixed end bodies far from the elastic portion main body,
First cable is electrically connected first circuit board.
6. weighing sensor as claimed in claim 5, which is characterized in that the electric signal is digital signal.
7. weighing sensor as claimed in claim 5, which is characterized in that the column sealing shell is stainless steel material.
8. weighing sensor as claimed in claim 5, which is characterized in that the fixed closing panel is stainless steel material.
9. a kind of sealed weighing sensor characterized by comprising
Stress end；
Elastic portion, one end laser welding of the elastic portion are fixedly connected with the stress end, and the elastic portion includes:
Elastic portion main body, the elastic portion main body include whole integrally formed first spring beam and the second spring beam；The bullet
Property portion's main body between the first spring beam and the second spring beam be equipped with overload protection block place through slot；
Overload protection block, the overload protection block setting are placed in through slot in the overload protection block, and the overload is protected
One end of guard block block is fixed on the overload protection block and places the one end of through slot far from the stress end, the other end with it is described
Overload protection block places through slot and is respectively formed upper gap and underclearance close to one end of the stress end；And
Resistance strain gage, the quantity of the resistance strain gage are two, be separately positioned on first spring beam upper surface and
The lower end surface of second spring beam；And
Column sealing shell, the column sealing shell fixed respectively by way of laser welding the elastic portion main body to
The elastic portion main body is sealed, the shape of the column sealing shell is to be turned around by inner concave curve around rotation axis rotation；
Fixed end, the fixed end is fixedly connected with one of the elastic portion far from the stress end by laser welding
End, the fixed end includes:
Fixed end bodies；
First circuit board, the first circuit board are located in the fixed end bodies, and the first circuit board is by the resistance
The resistance of foil gauge is converted into electric signal；
Fixed closing panel, the fixed end cover plate for sealing is on the leading flank of the fixed end bodies, and sealing is using sharp
The mode of photocoagulation is welded；And
First cable, first cable are fixedly connected on the one end of the fixed end bodies far from the elastic portion main body,
First cable is electrically connected first circuit board.
10. weighing sensor as described in claim 1, which is characterized in that the electric signal is digital signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257456.9A CN110132383A (en) | 2019-04-01 | 2019-04-01 | Sealed weighing sensor |
| PCT/CN2019/101730 WO2020199462A1 (en) | 2019-04-01 | 2019-08-21 | Sealed weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257456.9A CN110132383A (en) | 2019-04-01 | 2019-04-01 | Sealed weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110132383A true CN110132383A (en) | 2019-08-16 |
Family
ID=67569170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257456.9A Pending CN110132383A (en) | 2019-04-01 | 2019-04-01 | Sealed weighing sensor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110132383A (en) |
| WO (1) | WO2020199462A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020199462A1 (en) * | 2019-04-01 | 2020-10-08 | 苏州钮曼精密机电科技有限公司 | Sealed weighing sensor |
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| CN110132383A (en) * | 2019-04-01 | 2019-08-16 | 苏州钮曼精密机电科技有限公司 | Sealed weighing sensor |
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2019
- 2019-04-01 CN CN201910257456.9A patent/CN110132383A/en active Pending
- 2019-08-21 WO PCT/CN2019/101730 patent/WO2020199462A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2020199462A1 (en) | 2020-10-08 |
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Application publication date: 20190816 |