CN203490008U - Contact force measurement device of electromechanical switch contact - Google Patents
Contact force measurement device of electromechanical switch contact Download PDFInfo
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- CN203490008U CN203490008U CN201320554267.6U CN201320554267U CN203490008U CN 203490008 U CN203490008 U CN 203490008U CN 201320554267 U CN201320554267 U CN 201320554267U CN 203490008 U CN203490008 U CN 203490008U
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- mechanical switch
- lever
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Abstract
The utility model discloses a contact force measurement device of an electromechanical switch contact, which comprises a base, a switch housing fixing base, a support mechanism frame, a lever probe body, a lever probe rotating shaft, a fixed pulley, a fixed pulley pull rope, a resistance measurement circuit and a weight; the switch housing fixing base is fixed on the base; the support mechanism frame comprises a left arm, a right arm and a transverse beam; a longitudinal groove is arranged at the right part of the transverse beam; an axial hole is arranged at the upper end of the lever probe body; a pull rope locating pin is arranged in the middle part of the lever probe body; a probe is at the lower part of the lever probe body; the lever probe body is pivoted and fixed in the longitudinal groove by the lever probe rotating shaft through the axial hole and can vertically move along the longitudinal groove; the fixed pulley is fixed at the lower part of the left arm; the fixed pulley pull rope passes through the fixed pulley; one end of the fixed pulley pull rope is fixed at the pull rope locating pin; the other end of the fixed pulley pull rope is used for fixing the weight; and the resistance measurement circuit is used for measuring contact resistance between to-be-measured electromechanical switch contacts. The contact force measurement device of the electromechanical switch contact disclosed by the utility model is capable of increasing the contact force measurement stability of the small electromechanical switch contact.
Description
Technical field
The utility model relates to electric mechanical switch design verification and Quality Control Technology, particularly a kind of electric mechanical switch contact contact force measurement mechanism.
Background technology
The contact force of electric mechanical switch contact is most important to the ability of the electrical endurance of switch and vibration resistance environment.
Common electric mechanical switch contact contact force metering system is to adopt lever force-measuring gauge to add the force measuring method measuring machine electrical switching contact contact force of multimeter.Because the complicated in mechanical structure of electric mechanical switch is compact, test probe will apply test force to contact structure in very little space, and need to stablize confining force and control test probe displacement simultaneously, gauger needs monitoring contact make-and-break signal simultaneously, when contact disconnects, will stablize and read contact force in a flash.Employing lever force-measuring gauge adds the force measuring method measuring machine electrical switching contact contact force of multimeter, the electric mechanical switch complicated operation to various different models, and very high to operator's technical ability requirement, test repeatability is poor, and the test duration is long, is not suitable for continuous product quality monitoring.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electric mechanical switch contact contact force measurement mechanism, can improve the stability to miniaturized electromechanical contact contact force measurement.
For solving the problems of the technologies described above, the electric mechanical switch contact contact force measurement mechanism that the utility model provides, it comprises base, switch housing fixed pedestal, support machine framework, lever sonde body, the rotating shaft of lever probe, fixed pulley, fixed pulley stay cord, resistance measuring circuit, counterweight;
Described switch housing fixed pedestal, is fixed on described base;
Described support machine framework, comprises left arm, right arm, crossbeam;
Crossbeam is positioned at the top of base, and crossbeam right part is provided with a longitudinal fluting;
The upper end of left arm is fixed on the left end of crossbeam, and the lower end of left arm is positioned at the top of the base in described switch housing fixed pedestal left side;
The upper end of right arm is fixed on the right-hand member of crossbeam, and the lower end of right arm is fixed on the base on described switch housing fixed pedestal right side;
Described lever sonde body, upper end is provided with an axis hole, and middle part is provided with a stay cord register pin, and bottom is probe;
The rotating shaft of described lever probe, is fixed on described longitudinal fluting by described axis hole by the upper end pivot of described lever sonde body;
The rotating shaft of described lever probe, can move up and down along described longitudinal fluting;
Described fixed pulley, is fixed on the bottom of described left arm;
Described fixed pulley stay cord, walks around described fixed pulley, and one end is fixed on described stay cord register pin, and the other end is used for fixedly counterweight;
Described resistance measuring circuit, for measuring the contact resistance between electric mechanical switch to be measured contact.
Preferably, electric mechanical switch contact contact force measurement mechanism, also comprises electromagnet, solenoid driver circuit;
Described counterweight is soft iron counterweight;
Described electromagnet, is positioned at soft iron counterweight below;
Described resistance measuring circuit, and the real-time change signal of the contact resistance between electric mechanical switch to be measured contact is outputed to described solenoid driver circuit;
Described solenoid driver circuit, be used for according to the real-time change signal of the contact resistance between electric mechanical switch to be measured contact, change the electric current in described electromagnet, the change with the contact resistance between electric mechanical switch to be measured contact diminishes greatly to the gravitation of soft iron counterweight to make electromagnet.
Preferably, described solenoid driver circuit, according to the size of the electric current in described electromagnet, exports the contact contact force of electric mechanical switch to be measured.
Preferably, between the axis hole of described lever sonde body and stay cord register pin, be provided with a lever probe spacing preiection;
Described crossbeam, is provided with a lever probe spacer pin in the left side of longitudinal fluting.
Electric mechanical switch of the present utility model contact contact force measurement mechanism, support machine framework and base form integrated support body, and the gravity of counterweight is delivered to the probe of lever sonde body by fixed pulley and fixed pulley stay cord.While measuring, electric mechanical switch shell to be measured is abutted against on switch housing fixed pedestal, along described longitudinal fluting, move down the rotating shaft of described lever probe, described lever sonde body is moved down, make the probe of the bottom of described lever sonde body be resisted against electric mechanical switch to be measured contact, the contact force of counterweight weight and electric mechanical switch to be measured contact forms the relation of acting force and reacting force.Resistance measuring circuit is measured the contact resistance between electric mechanical switch to be measured contact, changes the weight of counterweight, and the weight of the counterweight while equaling to set resistance according to the contact resistance between electric mechanical switch to be measured contact can be determined the contact contact force of electric mechanical switch to be measured.The electric mechanical switch contact contact force measurement mechanism of embodiment mono-, can adapt to the contact force test of various types of electric mechanical switchs contact, especially repeatability and the stability of miniaturized electromechanical contact contact force measurement is improved greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, below the accompanying drawing of the required use of the utility model is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is electric mechanical switch of the present utility model contact contact force measurement mechanism one embodiment schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model is carried out to clear, complete description, obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Embodiment mono-
Electric mechanical switch contact contact force measurement mechanism, as shown in Figure 1, comprises base 13, switch housing fixed pedestal 12, support machine framework 1, lever sonde body 16, the rotating shaft 2 of lever probe, fixed pulley 5, fixed pulley stay cord 6, resistance measuring circuit 14, counterweight 8;
Described switch housing fixed pedestal 12, is fixed on described base 13;
Described support machine framework 1, comprises left arm, right arm, crossbeam;
Crossbeam is positioned at base 13 tops, and crossbeam right part is provided with a longitudinal fluting;
The upper end of left arm is fixed on the left end of crossbeam, and the lower end of left arm is positioned at base 13 tops in described switch housing fixed pedestal 12 left sides;
The upper end of right arm is fixed on the right-hand member of crossbeam, and the lower end of right arm is fixed on the base 13 on described switch housing fixed pedestal 12 right sides;
Described lever sonde body 16, upper end is provided with an axis hole, and middle part is provided with a stay cord register pin 7, and bottom is probe;
The rotating shaft 2 of described lever probe, is fixed on described longitudinal fluting by described axis hole by the upper end pivot of described lever sonde body 16, makes the described lever sonde body 16 can be around described lever probe rotating shaft 2 left-right rotation;
The rotating shaft 16 of described lever probe, is fixed on described longitudinal fluting by described axis hole by the upper end pivot of described lever sonde body;
The rotating shaft 16 of described lever probe, can move up and down along described longitudinal fluting, thereby described lever sonde body 16 can be moved up and down along described longitudinal fluting;
Described fixed pulley 5, is fixed on the bottom 2 of described left arm;
Described fixed pulley stay cord 6, walks around described fixed pulley 5, and one end is fixed on described stay cord register pin 7, and the other end is used for fixedly counterweight 8;
Described resistance measuring circuit 14, for measuring the contact resistance between electric mechanical switch to be measured contact.
The electric mechanical switch contact contact force measurement mechanism of embodiment mono-, support machine framework 1 and base 13 form integrated support body, and the gravity of counterweight 8 is delivered to the probe of lever sonde body 16 by fixed pulley 5 and fixed pulley stay cord 6.While measuring, electric mechanical switch shell 11 to be measured is abutted against on switch housing fixed pedestal 12, along described longitudinal fluting, move down the rotating shaft 2 of described lever probe, described lever sonde body 16 is moved down, make the probe of the bottom of described lever sonde body 16 be resisted against electric mechanical switch to be measured contact 10, the contact force of counterweight 8 weight and electric mechanical switch to be measured contact forms the relation of acting force and reacting force.Resistance measuring circuit is measured the contact resistance between electric mechanical switch to be measured contact, changes the weight of counterweight 8, and the weight of the counterweight 8 while equaling to set resistance according to the contact resistance between electric mechanical switch to be measured contact can be determined the contact contact force of electric mechanical switch to be measured.The electric mechanical switch contact contact force measurement mechanism of embodiment mono-, can adapt to the contact force test of various types of electric mechanical switchs contact, especially repeatability and the stability of miniaturized electromechanical contact contact force measurement is improved greatly.
Embodiment bis-
Based on embodiment mono-, electric mechanical switch contact contact force measurement mechanism, also comprises electromagnet 9, solenoid driver circuit 15;
Described counterweight 8 is soft iron counterweight;
Described electromagnet 9, is positioned at soft iron counterweight 8 belows;
Described resistance measuring circuit 14, and the real-time change signal of the contact resistance between electric mechanical switch to be measured contact is outputed in described solenoid driver circuit 15;
Described solenoid driver circuit 15, for changing the electric current of described electromagnet 9 according to the real-time change signal of the contact resistance between electric mechanical switch to be measured contact, the gravitation that makes 9 pairs of soft iron counterweights 8 of electromagnet diminishes greatly with the change of the contact resistance between electric mechanical switch to be measured contact.
Preferably, described solenoid driver circuit 15, according to the size of the electric current in described electromagnet 9, exports the contact contact force of electric mechanical switch to be measured.
The electric mechanical switch contact contact force measurement mechanism of embodiment bis-, electromagnetic force is by soft iron counterweight 8, fixed pulley 5 and fixed pulley stay cord 6 are delivered to the probe of lever sonde body 16, electromagnetic force and soft iron counterweight 8 weight and contact contact force form the relation of acting force and reacting force, solenoid driver circuit 15 changes the electric current in electromagnet 9 according to the real-time change signal of the contact resistance between electric mechanical switch to be measured contact, the gravitation that makes 9 pairs of soft iron counterweights 8 of electromagnet changes with the variation of the contact resistance between electric mechanical switch to be measured contact, finally make contact resistance between electric mechanical switch to be measured contact reach the effect of Critical Stability contact resistance, pulling force now (electromagnetic force adds soft iron counterweight 8 weight) is with regard to the contact contact force balance with electric mechanical switch to be measured, thereby according to the size of pulling force, can determine the contact contact force of electric mechanical switch to be measured.Electric current in described electromagnet 9 and the relation of contact force can determine by verification, during actual use during by dynamic balance described in electric current in electromagnet 9 according to checking curve, change into contact force.The electric mechanical switch contact contact force measurement mechanism of embodiment bis-, can accurately measure and judgement electric mechanical switch contact contact force by fast and stable, can in production line, do continuous mass inspection and test, thereby improve the life-span consistance of switch product.
Embodiment tri-
Electric mechanical switch contact contact force measurement mechanism based on embodiment bis-, between the axis hole of described lever sonde body 16 and stay cord register pin 7, is provided with a lever probe spacing preiection 4;
Described crossbeam, is provided with a lever probe spacer pin 3 in the left side of longitudinal fluting.
The electric mechanical switch contact contact force measurement mechanism of embodiment tri-, lever probe spacing preiection 4 and lever probe spacer pin 3 coordinate jointly, while moving on lever sonde body 16, producing mechanism interferes, keep the probe of lever sonde body 16 bottoms vertical, probe in lever sonde body 16 bottoms moves down into after test position, mechanism interferes disappearance, and probe can freely not rub and move left and right.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. an electric mechanical switch contact contact force measurement mechanism, is characterized in that, comprises base, switch housing fixed pedestal, support machine framework, lever sonde body, the rotating shaft of lever probe, fixed pulley, fixed pulley stay cord, resistance measuring circuit, counterweight;
Described switch housing fixed pedestal, is fixed on described base;
Described support machine framework, comprises left arm, right arm, crossbeam;
Crossbeam is positioned at the top of base, and crossbeam right part is provided with a longitudinal fluting;
The upper end of left arm is fixed on the left end of crossbeam, and the lower end of left arm is positioned at the top of the base in described switch housing fixed pedestal left side;
The upper end of right arm is fixed on the right-hand member of crossbeam, and the lower end of right arm is fixed on the base on described switch housing fixed pedestal right side;
Described lever sonde body, upper end is provided with an axis hole, and middle part is provided with a stay cord register pin, and bottom is probe;
The rotating shaft of described lever probe, is fixed on described longitudinal fluting by described axis hole by the upper end pivot of described lever sonde body;
The rotating shaft of described lever probe, can move up and down along described longitudinal fluting;
Described fixed pulley, is fixed on the bottom of described left arm;
Described fixed pulley stay cord, walks around described fixed pulley, and one end is fixed on described stay cord register pin, and the other end is used for fixedly counterweight;
Described resistance measuring circuit, for measuring the contact resistance between electric mechanical switch to be measured contact.
2. electric mechanical switch according to claim 1 contact contact force measurement mechanism, is characterized in that,
Electric mechanical switch contact contact force measurement mechanism, also comprises electromagnet, solenoid driver circuit;
Described counterweight is soft iron counterweight;
Described electromagnet, is positioned at soft iron counterweight below;
Described resistance measuring circuit, and the real-time change signal of the contact resistance between electric mechanical switch to be measured contact is outputed to described solenoid driver circuit;
Described solenoid driver circuit, be used for according to the real-time change signal of the contact resistance between electric mechanical switch to be measured contact, change the electric current in described electromagnet, the change with the contact resistance between electric mechanical switch to be measured contact diminishes greatly to the gravitation of soft iron counterweight to make electromagnet.
3. the electric mechanical switch contact contact force measurement mechanism that claim 2 is stated, is characterized in that,
Described solenoid driver circuit, according to the size of the electric current in described electromagnet, exports the contact contact force of electric mechanical switch to be measured.
4. the electric mechanical switch contact contact force measurement mechanism of claim 3, is characterized in that,
Between the axis hole of described lever sonde body and stay cord register pin, be provided with a lever probe spacing preiection;
Described crossbeam, is provided with a lever probe spacer pin in the left side of longitudinal fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554267.6U CN203490008U (en) | 2013-09-06 | 2013-09-06 | Contact force measurement device of electromechanical switch contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320554267.6U CN203490008U (en) | 2013-09-06 | 2013-09-06 | Contact force measurement device of electromechanical switch contact |
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| Publication Number | Publication Date |
|---|---|
| CN203490008U true CN203490008U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320554267.6U Expired - Fee Related CN203490008U (en) | 2013-09-06 | 2013-09-06 | Contact force measurement device of electromechanical switch contact |
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| Country | Link |
|---|---|
| CN (1) | CN203490008U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215378A (en) * | 2014-09-28 | 2014-12-17 | 江苏正通电子有限公司 | Automobile headlamp adjusting switch detector |
| CN104237784A (en) * | 2014-09-28 | 2014-12-24 | 江苏正通电子有限公司 | Tester for adjusting switch assembly of vehicle headlamp |
| CN105043620A (en) * | 2015-05-31 | 2015-11-11 | 叶露微 | Power meter for micro motor |
| CN105222951A (en) * | 2015-10-09 | 2016-01-06 | 舟山市质量技术监督检测研究院 | A kind of pick-up unit for force measurement instrument |
-
2013
- 2013-09-06 CN CN201320554267.6U patent/CN203490008U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215378A (en) * | 2014-09-28 | 2014-12-17 | 江苏正通电子有限公司 | Automobile headlamp adjusting switch detector |
| CN104237784A (en) * | 2014-09-28 | 2014-12-24 | 江苏正通电子有限公司 | Tester for adjusting switch assembly of vehicle headlamp |
| CN105043620A (en) * | 2015-05-31 | 2015-11-11 | 叶露微 | Power meter for micro motor |
| CN105222951A (en) * | 2015-10-09 | 2016-01-06 | 舟山市质量技术监督检测研究院 | A kind of pick-up unit for force measurement instrument |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20200906 |