CN103512523A - Thermal relay bimetallic strip detection device - Google Patents
Thermal relay bimetallic strip detection device Download PDFInfo
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- CN103512523A CN103512523A CN201210203985.9A CN201210203985A CN103512523A CN 103512523 A CN103512523 A CN 103512523A CN 201210203985 A CN201210203985 A CN 201210203985A CN 103512523 A CN103512523 A CN 103512523A
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- electrothermal relay
- bimetallic strip
- displacement transducer
- relay bimetallic
- pick
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Abstract
The invention provides a thermal relay bimetallic strip detection device for detecting the position states of thermal relay bimetallic strips. A thermal relay comprises a current contact. The thermal relay bimetallic strip detection device comprises: a detection module which is for detecting the position states of the thermal relay bimetallic strips; a display device which is electrically connected with the detection module and is used for displaying metering values representing the position states of the thermal relay bimetallic strips; and a third displacement meter which is in cooperation with the current contact and is for detecting and displaying a displacement value of the current contact. With the third displacement meter, the displacement of the current contact of the thermal relay can be displayed clearly, and the corresponding analog current can be obtained, so that the operation becomes more convenient.
Description
Technical field
The invention belongs to electromechanical equipment and manufacture field, be specifically related to a kind of electrothermal relay bimetallic strip pick-up unit.
Background technology
Electrothermal relay is to produce heat by the electric current that flows into thermal element, makes the bimetallic strip generation deformation of different expansion coefficient, when deformation reaches certain distance; just promote connecting rod action, control circuit is disconnected, thereby make contactor dead electricity; main circuit disconnects, and realizes the overload protection of motor.Particularly, in existing electrothermal relay, generally include some bimetallic strips arranged side by side, this bimetallic strip is formed by the sheet metal spreading of two kinds of different heat expansion coefficients, when electromotor overload, electric current by heater element surpasses setting current, bimetallic strip is heated and is bent upwards disengaging buckle, and normally closed contact is disconnected.Because normally closed contact is to be connected in the control circuit of motor, its disconnection can make the contactor coil power-off of joining with it, thereby contactor main contacts disconnects, and the main circuit power-off of motor, has realized overload protection.Electrothermal relay is as the overload protection element of motor, and little with its volume, simple in structure, low cost and other advantages is widely applied aborning.
In electrothermal relay, generally include an electric current contact, the size of its displacement can be for characterizing by the power of the electric current of electrothermal relay, and displacement is larger, and representative is larger by the electric current of electrothermal relay, and displacement is less, and representative is less by the electric current of electrothermal relay.In order to guarantee the reliability of electrothermal relay work, conventionally provide the location status of electrothermal relay bimetallic strip pick-up unit for detection of electrothermal relay bimetallic strip, and by the testing environment that regulates the size of electric current contact can simulate different strength of current, but, conventionally can not know the size of the strength of current of understanding exactly physical simulation.
Summary of the invention
The object of the present invention is to provide a kind of electrothermal relay bimetallic strip pick-up unit, it can show the size of electric current contact displacement in electrothermal relay.
For achieving the above object, the invention provides a kind of electrothermal relay bimetallic strip pick-up unit, for detection of the location status of electrothermal relay bimetallic strip, described electrothermal relay comprises electric current contact, and described electrothermal relay bimetallic strip pick-up unit comprises:
Detection module, described detection module is for detection of electrothermal relay bimetallic strip location status;
Display device, described display device and described detection module are electrically connected, and described display device is for showing the variable that characterizes described electrothermal relay bimetallic strip location status;
Triple motion table, described triple motion table and described electric current contacts mates are for detecting and showing the shift value that characterizes described electric current contact.
As a further improvement on the present invention, described electrothermal relay bimetallic strip pick-up unit moves to predetermined measuring position to start the detection to the location status of electrothermal relay bimetallic strip by controlling electrothermal relay from predetermined initial position, described electrothermal relay bimetallic strip pick-up unit moves to predetermined initial position to finish the detection to the location status of electrothermal relay bimetallic strip by controlling electrothermal relay from predetermined measuring position, described electrothermal relay bimetallic strip pick-up unit also comprises the first offset table and the second offset table, described the first offset table is used for measuring and showing the distance that moves to measuring position when electrothermal relay starts to detect from described initial position, described the second offset table moves to the distance of initial position from described measuring position while being used for measuring and showing electrothermal relay detection of end.
As a further improvement on the present invention, described detection module comprises probe and displacement transducer, described probe is for coordinating with electrothermal relay bimetallic strip, described displacement transducer and described probe are electrically connected, and described displacement transducer is by the location status of described probe in detecting electrothermal relay bimetallic strip.
As a further improvement on the present invention, described displacement transducer comprises inductive displacement transducer and/or capacitive displacement transducer and/or optical displacement sensor and/or ultrasonic type displacement transducer and/or Hall displacement transducer.
As a further improvement on the present invention, described displacement transducer comprises linear displacement transducer.
As a further improvement on the present invention, described display device comprises Displaying Meter and/or electronic console.
Compared with prior art, the present invention, by triple motion table is set, can clearly illustrate the size of electric current contact displacement in electrothermal relay, and then draws the size of electric current of the simulation of its correspondence, convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention electrothermal relay bimetallic strip pick-up unit one embodiment.
Embodiment
Below with reference to embodiment shown in the drawings, describe the present invention.But these embodiments do not limit the present invention, the conversion in the structure that those of ordinary skill in the art makes according to these embodiments, method or function is all included in protection scope of the present invention.
Ginseng Fig. 1, introduce an embodiment of electrothermal relay bimetallic strip pick-up unit 10 of the present invention, it is for detection of the location status of electrothermal relay bimetallic strip, and this electrothermal relay bimetallic strip pick-up unit 10 comprises detection module, display device (not shown), triple motion table 15.
Electrothermal relay bimetallic strip pick-up unit 10 of the present invention moves to predetermined measuring position to start the detection to the location status of electrothermal relay bimetallic strip by controlling electrothermal relay from predetermined initial position, after detection finishes, electrothermal relay bimetallic strip pick-up unit 10 is controlled electrothermal relay and is moved to predetermined initial position from predetermined measuring position, and so forth, to complete continuously the detection of electrothermal relay bimetallic strip location status.
Detection module comprises probe 11 and displacement transducer 12.This probe 11 is for coordinating with electrothermal relay bimetallic strip, and displacement transducer 12 is electrically connected with probe 11, and this displacement transducer 12 detects the location status of electrothermal relay bimetallic strip by probe 11.Displacement transducer 12 can for example adopt inductive displacement transducer and/or capacitive displacement transducer and/or optical displacement sensor and/or ultrasonic type displacement transducer and/or Hall displacement transducer.
In the present embodiment, owing to only needing to detect state in the linear position direction of electrothermal relay bimetallic strip, so adopt linear displacement transducer, it can convert electric signal to straight line mechanical displacement.
Display device (not shown) and displacement transducer 12 are electrically connected, for showing the variable that characterizes electrothermal relay bimetallic strip location status.Display device can comprise Displaying Meter and/or electronic console.
As preferred embodiment, electrothermal relay bimetallic strip pick-up unit 10 of the present invention also comprises the first offset table 13 and the second offset table 14.The first offset table 13 moves to the distance of measuring position when measuring and showing that electrothermal relay starts to detect from initial position, the second offset table 14 is for measuring and showing that electrothermal relay detection of end Shi Cong measuring position moves to the distance of initial position.
In concrete operation, first electrothermal relay is placed on initial position, then electrothermal relay bimetallic strip pick-up unit 10 is controlled these electrothermal relays and is moved to detection position (now the conveyer mechanism that moves through of electrothermal relay is realized, conveyer mechanism is not shown in the figures), now, the first offset table 13 detects and shows that characterizing electrothermal relay moves to detection position apart from the first shift value of size from initial position; After detection finishes, electrothermal relay bimetallic strip pick-up unit 10 is controlled this electrothermal relay and is moved to initial position, and now the second offset table 14 detects and shows that characterizing electrothermal relay moves to initial position apart from the second shift value of size from detection position.Whether testing staff is consistent with the second shift value by comparison the first shift value, can judge the precision that electrothermal relay bimetallic strip is adjusted, and avoided still not meeting through the electrothermal relay of adjustment the problem of the accuracy specification of demand.
In electrothermal relay, generally include an electric current contact, the size of its displacement can be for characterizing by the power of the electric current of electrothermal relay, and displacement is larger, and representative is larger by the electric current of electrothermal relay, and displacement is less, and representative is less by the electric current of electrothermal relay.Triple motion table 15 and electric current contacts mates are for detecting and show the shift value of sign electric current contact.So, by triple motion table 15 is set, can pass through certain corresponding relation, draw the size of current of now electrothermal relay bimetallic strip pick-up unit 10 simulations, for example, the shift value that triple motion table 15 shows is 3mm, the current value of corresponding 20A.So, can know the testing environment that different currents are set easily, electrothermal relay bimetallic strip is taken multiple measurements, improve the reliability of product.
The invention has the beneficial effects as follows: by triple motion table 15 is set, can clearly illustrate the size of electric current contact displacement in electrothermal relay, and then draw the size of electric current of the simulation of its correspondence, convenient.
Be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all disengaging within equivalent embodiment that skill spirit of the present invention does or change all should be included in protection scope of the present invention.
Claims (6)
1. an electrothermal relay bimetallic strip pick-up unit, for detection of the location status of electrothermal relay bimetallic strip, described electrothermal relay comprises electric current contact, it is characterized in that, described electrothermal relay bimetallic strip pick-up unit comprises:
Detection module, described detection module is for detection of electrothermal relay bimetallic strip location status;
Display device, described display device and described detection module are electrically connected, and described display device is for showing the variable that characterizes described electrothermal relay bimetallic strip location status;
Triple motion table, described triple motion table and described electric current contacts mates are for detecting and showing the shift value that characterizes described electric current contact.
2. bimetallic strip pick-up unit according to claim 1, it is characterized in that, described electrothermal relay bimetallic strip pick-up unit moves to predetermined measuring position to start the detection to the location status of electrothermal relay bimetallic strip by controlling electrothermal relay from predetermined initial position, described electrothermal relay bimetallic strip pick-up unit moves to predetermined initial position to finish the detection to the location status of electrothermal relay bimetallic strip by controlling electrothermal relay from predetermined measuring position, described electrothermal relay bimetallic strip pick-up unit also comprises the first offset table and the second offset table, described the first offset table is used for measuring and showing the distance that moves to measuring position when electrothermal relay starts to detect from described initial position, described the second offset table moves to the distance of initial position from described measuring position while being used for measuring and showing electrothermal relay detection of end.
3. bimetallic strip pick-up unit according to claim 1, it is characterized in that, described detection module comprises probe and displacement transducer, described probe is for coordinating with electrothermal relay bimetallic strip, described displacement transducer and described probe are electrically connected, and described displacement transducer is by the location status of described probe in detecting electrothermal relay bimetallic strip.
4. electrothermal relay bimetallic strip pick-up unit according to claim 3, it is characterized in that, described displacement transducer comprises inductive displacement transducer and/or capacitive displacement transducer and/or optical displacement sensor and/or ultrasonic type displacement transducer and/or Hall displacement transducer.
5. electrothermal relay bimetallic strip pick-up unit according to claim 3, is characterized in that, described displacement transducer comprises linear displacement transducer.
6. electrothermal relay bimetallic strip pick-up unit according to claim 1, is characterized in that, described display device comprises Displaying Meter and/or electronic console.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203985.9A CN103512523A (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203985.9A CN103512523A (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103512523A true CN103512523A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210203985.9A Pending CN103512523A (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
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| CN (1) | CN103512523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601562A (en) * | 2015-10-14 | 2017-04-26 | 施耐德电气工业公司 | Thermal relay |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07198370A (en) * | 1993-12-29 | 1995-08-01 | Hitachi Constr Mach Co Ltd | Position detection probe of force control robot |
| CN202734782U (en) * | 2012-06-20 | 2013-02-13 | 苏州工业园区高登威科技有限公司 | Thermal relay bimetallic strip detection device |
| CN202734779U (en) * | 2012-06-15 | 2013-02-13 | 苏州工业园区高登威科技有限公司 | Thermal relay bimetallic strip detection device |
| CN103512516A (en) * | 2012-06-15 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | Thermorelay's bimetallic strip detector |
-
2012
- 2012-06-20 CN CN201210203985.9A patent/CN103512523A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07198370A (en) * | 1993-12-29 | 1995-08-01 | Hitachi Constr Mach Co Ltd | Position detection probe of force control robot |
| CN202734779U (en) * | 2012-06-15 | 2013-02-13 | 苏州工业园区高登威科技有限公司 | Thermal relay bimetallic strip detection device |
| CN103512516A (en) * | 2012-06-15 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | Thermorelay's bimetallic strip detector |
| CN202734782U (en) * | 2012-06-20 | 2013-02-13 | 苏州工业园区高登威科技有限公司 | Thermal relay bimetallic strip detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601562A (en) * | 2015-10-14 | 2017-04-26 | 施耐德电气工业公司 | Thermal relay |
| CN106601562B (en) * | 2015-10-14 | 2019-08-30 | 施耐德电气工业公司 | Electrothermal relay |
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Application publication date: 20140115 |