CN211085429U - Sensor applied to electronic scale - Google Patents
Sensor applied to electronic scale Download PDFInfo
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- CN211085429U CN211085429U CN201922496276.4U CN201922496276U CN211085429U CN 211085429 U CN211085429 U CN 211085429U CN 201922496276 U CN201922496276 U CN 201922496276U CN 211085429 U CN211085429 U CN 211085429U
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Abstract
The application discloses a sensor applied to an electronic scale, an elastic body of the sensor comprises a deformation beam, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are arranged at two ends of the deformation beam and are of concave structures, when an object is placed on a scale pan, the weight of the scale pan can apply pressure to the first fixing part to enable the first fixing part to generate elastic deformation and enable the deformation beam to generate elastic deformation under pressure, because the deformation beam is connected with the first fixing part and the second fixing part, the stress of the deformation beam can be applied to the second fixing part, the second fixing part plays a role of supporting the deformation beam, the deformation beam can be prevented from being damaged due to plastic deformation under larger pressure, because the second fixing part is of a concave structure, the stress of the deformation beam can be dispersed, the second fixing part can provide larger supporting force for the deformation beam, the deformation beam is prevented from being subjected to larger pressure to generate plastic deformation, and the overload resistance of the, the detection precision of the sensor is improved, and the service life of the sensor is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the sensor, especially, relate to a be applied to sensor of electronic scale.
Background
The sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule and output the electric signal or the information. The sensor is one of them of sensor, mainly used for detecting the weight of waiting to weigh the article, the sensor generally includes the elastomer and sets up the resistance strain meter on the elastomer, when the elastomer pressurized takes place elastic deformation, thereby the deformation volume that the resistance strain meter can respond to the elastomer detects the weight of the object that awaits measuring, the application range of sensor is wide, can install on the common article in life, but present sensor does not optimize its shape structure, the ubiquitous anti-overload ability is poor, it is poor to weigh the accuracy, be difficult for the installation, problem that life is short.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to overcome the above insufficiency, the utility model aims to provide a be applied to sensor of electronic scale to solve anti overload capacity poor, the accuracy of weighing is poor, the short technical problem of life.
(II) technical scheme
In order to achieve the purpose, the technical scheme provided by the application is as follows:
a sensor for use with an electronic scale, comprising:
the elastic body comprises a deformation beam, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are arranged at two ends of the deformation beam and are of concave structures;
and the resistance strain gauge is arranged on the deformation beam along the length direction of the deformation beam and is used for detecting the deformation amount of the deformation beam after the deformation beam is elastically deformed so as to detect the pressure applied by the force applying body.
Furthermore, the two side edges of the first fixing part are symmetrically provided with mounting holes for fixing the force applying body.
Further, the length of the deformation beam is 10-14mm, and the width of the deformation beam is 4-8 mm.
Further, the thickness of the elastomer is 2.5-3.2 mm.
Further, the elastic body is a metal member.
Borrow by above technical scheme, the beneficial effect of this application lies in: the elastic body of the sensor comprises a deformation beam, a first fixing part and a second fixing part which are arranged at two ends of the deformation beam and are of concave structures, when an object is placed on the scale pan, the weight of the scale pan applies pressure to the first fixing part to cause the first fixing part to generate elastic deformation and the deformation beam to generate elastic deformation under the pressure, because the deformation beam is connected with the first fixing part and the second fixing part, the stress of the deformation beam can be applied to the second fixing part, the second fixing part plays a role of supporting the deformation beam, the deformation beam can be prevented from being damaged due to plastic deformation caused by larger pressure, because the second fixed part is the concave structure, can disperse the stress of deformation roof beam, the second fixed part can provide great holding power for the deformation roof beam, has avoided the deformation roof beam to receive great pressure and has taken place plastic deformation, has increased the anti overload capacity of elastic component, has improved the detection precision of sensor, has prolonged the life of sensor.
Drawings
Fig. 1 is a schematic structural view of an elastic body of a sensor applied to an electronic scale according to the present invention;
fig. 2 is an assembly view of an elastic body and a resistance strain gauge of a sensor for an electronic scale according to the present invention;
fig. 3 is a side view of an elastic body of a sensor applied to an electronic scale according to the present invention;
reference numerals:
1: an elastomer; 101: a first fixed part; 1011: a first fixed part side; 102: a deformation beam; 103: a second fixed part; 1031: a second fixed part side; 2: a resistance strain gauge; 3: and (7) leading wires.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1-3, the present invention provides a sensor for an electronic scale, which includes:
the elastic body 1 comprises a deformation beam 102, and a first fixing part 101 and a second fixing part 103 which are arranged at two ends of the deformation beam 102 and are of a concave structure, wherein two first fixing part side edges 1011 are respectively embedded between a second fixing part side edge 1031 and the deformation beam 102, the first fixing part 101 is connected with a force application body, the second fixing part 103 is connected with an external fixing body, and the deformation beam 102 can elastically deform under compression;
and the resistance strain gauge 2 is arranged on the deformation beam 102 along the length direction of the deformation beam 102 and is used for detecting the deformation amount of the deformation beam 102 after the deformation beam 102 is elastically deformed so as to detect the pressure applied by the force applying body.
The sensor of this application is mainly installed on the electronic scale, for example on the intelligent nutrition balance, is used for detecting the weight of food, and current weighing sensor's elastomer structure intensity is poor, and anti overload capacity is poor, and elastomer 1 is easy to take place plastic deformation or fracture from the mid position downwarping when receiving great pressure, leads to resistance strain gauge 2 to be difficult to the accurate measurement application of force body pressure size, and measurement accuracy is low. Moreover, the elastic body 1 is difficult to recover after plastic deformation, and needs to be replaced, so that the service life of the sensor is short, and the maintenance cost is high.
The elastic body 1 of the sensor comprises a deformation beam 102, and a first fixing part 103 and a second fixing part 103 which are arranged at two ends of the deformation beam 102 and have concave structures, wherein a scale pan (a force application body) of the nutrition scale is connected with the first fixing part 101, the second fixing part 103 is connected with a mounting plate (a fixing body) of the nutrition scale, when an object is placed on the scale pan, the whole weight of the scale pan can apply pressure to the first fixing part 101 to enable the first fixing part 101 to generate elastic deformation and enable the deformation beam 102 to generate elastic deformation under pressure, the resistance strain gauge 2 can detect the weight of the object on the scale pan by detecting the deformation amount of the deformation beam 102, because the deformation beam 102 is connected with the first fixing part 103 and the second fixing part 103, the pressure applied to the deformation beam 102 can be applied to the second fixing part 103, the second fixing part 103 can play a role of supporting the deformation beam 102, the deformation beam 102 can be prevented from being damaged due to large pressure, and the, the acting force of the deformation beam 102 can be dispersed, so that the second fixing part 103 can apply a larger supporting force to the deformation beam 102, and the deformation beam 102 can load more heavy objects, thereby improving the overload resistance. The elastic body 1 is uniformly stressed and has strong overload resistance, the detection precision of the sensor is improved under the condition that the deformation beam 102 is not easy to generate plastic deformation, and the service life is prolonged. The two first fixing part sides 1011 are respectively embedded between the second fixing part side 1031 and the deformation beam 102, so that the overall structural strength of the elastic body 1 is stronger, and the anti-overload capacity of the elastic body 1 is favorably enhanced. Compare in current bearing sensor, what the deformation roof beam 102 of this application can set up is longer, is fit for installing long-and-medium-distance resistance strain gauge 2, and long-and-medium-distance resistance strain gauge 2 sensitivity is higher, can be more accurate detect whole deformation roof beam 102's deformation volume, has further improved the accuracy of measurement and the loaded repeatability.
Specifically, a lead 3 is connected to the resistance strain gauge 2, one end of the lead 3 is connected to the resistance strain gauge 2, and the other end of the lead 3 is connected to an external display module or a communication module, so that a signal detected by the resistance strain gauge 2 is transmitted to the display module to be displayed or transmitted to the intelligent device of a user through the communication module.
Preferably, two mounting holes 102 are symmetrically formed on the two first fixing portion sides 1011, respectively, and the mounting holes 102 are specifically connected to the scale pan, so that the pressure of the scale pan can directly act on the two first fixing portion sides 1011 and drive the first fixing portions 101 and the deformation beam 102 to elastically deform downward. The scale is lived to two first fixed part sides 1011 support simultaneously, can disperse the pressure of scale for first fixed part 101 atress is more even, and, two first fixed part sides 1011 support the scale simultaneously can be more stable, avoids the scale to weigh the in-process and rocks the accuracy that the influence was weighed.
Preferably, the length of the deformation beam 102 is 10-14mm, and the width is 4-8mm, so that the long-center-distance resistance strain gauge 2 can be installed, the detection accuracy is improved, meanwhile, the deformation beam 102 has strong supporting force, and the deformation beam 102 is prevented from being subjected to plastic deformation due to overlarge stress.
Specifically, the second fixing portion 103 is formed in a concave structure, so that the concave structure can be more stably connected with the mounting plate, and the situation that the detection is not accurate due to the fact that the elastic body 1 shakes in the detection process can be avoided.
Preferably, the thickness d of the elastic body 1 is set to be 2.5-3.2mm, so that the elastic body 1 can have a strong supporting force.
Optionally, the elastic body 1 is a metal piece, and the metal piece has the characteristics of wear resistance and easiness in processing, so that the maintenance cost can be reduced, and the processing efficiency can be improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A sensor for use with an electronic scale, comprising:
the elastic body comprises a deformation beam, and a first fixing part and a second fixing part which are arranged at two ends of the deformation beam and have concave structures, wherein two side edges of the first fixing part are respectively embedded between a side edge of the second fixing part and the deformation beam, the first fixing part is connected with a force application body, the second fixing part is connected with an external fixing body, and the deformation beam can elastically deform under compression;
and the resistance strain gauge is arranged on the deformation beam along the length direction of the deformation beam and is used for detecting the deformation amount of the deformation beam after the deformation beam is elastically deformed so as to detect the pressure applied by the force applying body.
2. The sensor of claim 1, wherein the first fixing portion has two symmetrical mounting holes for fixing the force applying body.
3. The sensor applied to the electronic scale according to claim 2, wherein the deformation beam has a length of 10-14mm and a width of 4-8 mm.
4. The sensor applied to the electronic scale according to claim 3, wherein the thickness of the elastic body is 2.5-3.2 mm.
5. The sensor applied to the electronic scale according to any one of claims 1 to 4, wherein the elastic body is a metal member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496276.4U CN211085429U (en) | 2019-12-31 | 2019-12-31 | Sensor applied to electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922496276.4U CN211085429U (en) | 2019-12-31 | 2019-12-31 | Sensor applied to electronic scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211085429U true CN211085429U (en) | 2020-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922496276.4U Active CN211085429U (en) | 2019-12-31 | 2019-12-31 | Sensor applied to electronic scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211085429U (en) |
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2019
- 2019-12-31 CN CN201922496276.4U patent/CN211085429U/en active Active
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