CN202734785U - Thermal relay bimetallic strip detection device - Google Patents
Thermal relay bimetallic strip detection device Download PDFInfo
- Publication number
- CN202734785U CN202734785U CN 201220290443 CN201220290443U CN202734785U CN 202734785 U CN202734785 U CN 202734785U CN 201220290443 CN201220290443 CN 201220290443 CN 201220290443 U CN201220290443 U CN 201220290443U CN 202734785 U CN202734785 U CN 202734785U
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- Prior art keywords
- electrothermal relay
- bimetallic strip
- detection
- displacement transducer
- relay bimetallic
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Abstract
The utility model provides a thermal relay bimetallic strip detection device which includes a detection module which can detect 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 a metering value representing the position states of the thermal relay bimetallic strips, a first displacement meter which measures and displays the movement distance of a thermal relay from an initial position to a measurement position at the beginning of detection, and a second displacement meter which measures and displays the movement distance of the thermal relay from the measurement position to the initial position at the end of detection. Through arranging the first displacement meter and the second displacement meter, the detector can visually monitor whether or not the distance of the thermal relay from the initial position to the measurement position at the beginning of detection is consistent with the distance of the thermal relay from the measurement position to the initial position at the end of detection, the inaccurate adjustment of the thermal relay bimetallic strip positions is avoided, the accurate and continuous thermal relay bimetallic strip position detection on a streamline can be guaranteed, and the yield rate is improved.
Description
Technical field
The utility model belongs to electromechanical equipment and makes the field, is 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 the connecting rod action, control circuit is disconnected, thereby make the contactor dead electricity; main circuit disconnects, and realizes the overload protection of motor.Particularly, generally include some bimetallic strips arranged side by side in the existing electrothermal relay, 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 the disengaging buckle, and normally closed contact is disconnected.Because normally closed contact is to be connected in the control circuit of motor, its disconnection meeting is so that the contactor coil outage of joining with it, thereby the contactor main contacts disconnects, and the main circuit outage 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 order to guarantee the reliability of electrothermal relay work, usually provide the location status of electrothermal relay bimetallic strip pick-up unit for detection of the electrothermal relay bimetallic strip.In existing streamline process, normally electrothermal relay is moved to a detection position from a predetermined initial position, so that it is detected, after detecting end, electrothermal relay is again by the control initial position that moves back from the detection position, and so forth to finish continuously the detection to electrothermal relay bimetallic strip location status.The problem of bringing thus is, in some cases, tend to find still can not reach predetermined Product Precision specification through detecting adjusted electrothermal relay, this normally since electrothermal relay when beginning to detect from initial position move to the distance of detection position and detect to finish after move to the distance of initial position from the detection position inconsistent, cause that detection to electrothermal relay bimetallic strip location status is inaccurate to be caused, the position adjustment that the testing staff makes the electrothermal relay bimetallic strip according to coarse detection data is also coarse often.
The utility model content
The purpose of this utility model is to provide a kind of electrothermal relay bimetallic strip pick-up unit, and it can accurately finish the detection of electrothermal relay bimetallic strip position continuously on streamline.
For realizing above-mentioned utility model purpose, the utility model provides a kind of electrothermal relay bimetallic strip pick-up unit, location status for detection of the electrothermal relay bimetallic strip, described electrothermal relay bimetallic strip pick-up unit moves to predetermined measuring position to begin the detection to the location status of electrothermal relay bimetallic strip by the control 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 the control electrothermal relay from predetermined measuring position, 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 used for showing the variable that characterizes described electrothermal relay bimetallic strip location status;
The first offset table, described the first offset table are used for measuring and showing the distance that moves to the measuring position when electrothermal relay begins to detect from described initial position;
When being used for measurement and showing the electrothermal relay detection of end, the second offset table, described the second offset table move to the distance of initial position from described measuring position.
As further improvement of the utility model, described detection module comprises probe and displacement transducer, described probe is used for cooperating with the 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 further improvement of the utility model, 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 further improvement of the utility model, described displacement transducer comprises linear displacement transducer.
As further improvement of the utility model, described display device comprises Displaying Meter and/or electronic console.
Compared with prior art, the utility model is by arranging the first offset table and the second offset table, so that whether the distance that the testing staff can monitor electrothermal relay intuitively when beginning to detect moves to the detection position from initial position is with to detect the distance that moves to initial position after finishing from the detection position consistent, avoided the coarse adjustment to electrothermal relay bimetallic strip position, guarantee on streamline, accurately to finish the detection of electrothermal relay bimetallic strip position continuously, improved product yield.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment electrothermal relay bimetallic strip pick-up unit.
Embodiment
Below with reference to embodiment shown in the drawings the utility model is described in detail.But these embodiments do not limit the utility model, and the conversion on the structure that those of ordinary skill in the art makes according to these embodiments, method or the function all is included in the protection domain of the present utility model.
Ginseng Fig. 1, introduce an embodiment of the utility model electrothermal relay bimetallic strip pick-up unit 10, 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), the first offset table 13, reaches the second offset table 14.
Electrothermal relay bimetallic strip pick-up unit 10 of the present utility model moves to predetermined measuring position to begin the detection to the location status of electrothermal relay bimetallic strip by the control electrothermal relay from predetermined initial position, after detecting end, electrothermal relay bimetallic strip pick-up unit 10 control electrothermal relays move to predetermined initial position from predetermined measuring position, and so forth, to finish continuously the detection of electrothermal relay bimetallic strip location status.
Detection module comprises probe 11 and displacement transducer 12.This probe 11 is used for cooperating with the 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 state on the linear position direction that only need detect the electrothermal relay bimetallic strip, so adopt linear displacement transducer, it can convert the straight line mechanical displacement to electric signal.
Display device (not shown) and displacement transducer 12 are electrically connected, and are used for showing the variable that characterizes electrothermal relay bimetallic strip location status.Display device can comprise Displaying Meter and/or electronic console.
The first offset table 13 is used for measuring and showing the distance that moves to the measuring position when electrothermal relay begins to detect from initial position, moves to the distance of initial position when the second offset table 14 is used for measurement and shows the electrothermal relay detection of end from the measuring position.
In concrete operation, electrothermal relay at first is placed on the initial position, then these electrothermal relays of electrothermal relay bimetallic strip pick-up unit 10 control move to the detection position (this moment, the conveyer mechanism that moves through of electrothermal relay were realized, conveyer mechanism is not shown in the figures), at this moment, the first offset table 13 detects and shows that characterizing electrothermal relay moves to the detection position apart from the first shift value of size from initial position; After detecting end, electrothermal relay bimetallic strip pick-up unit 10 these electrothermal relays of control move to initial position, and offset table 14 detected and showed that also the sign electrothermal relay moves to initial position apart from the second shift value of size from the detection position this moment second.Whether the testing staff is consistent with the second shift value by comparison the first shift value, can judge the precision that the electrothermal relay bimetallic strip is adjusted, and avoided still not meeting through the electrothermal relay of adjusting the problem of the accuracy specification of demand.
Generally include an electric current contact in the electrothermal relay, the size of its displacement can be used for characterizing the power by the electric current of electrothermal relay, and displacement is larger, and then representative is larger by the electric current of electrothermal relay, and displacement is less, and then representative is less by the electric current of electrothermal relay.As preferred embodiment, electrothermal relay bimetallic strip pick-up unit 10 of the present utility model also comprises triple motion table 15, and this triple motion table 15 and electric current contacts mates are with the shift value for detection of also demonstration sign electric current contact.So, by triple motion table 15 is set, can pass through certain corresponding relation, draw the size of current of electrothermal relay bimetallic strip pick-up unit 10 simulations this moment, for example, the shift value that triple motion table 15 shows is 3mm, then the current value of corresponding 20A.So, can know the testing environment that different currents are set easily, the electrothermal relay bimetallic strip is taken multiple measurements, improve the reliability of product.
The beneficial effects of the utility model are: by the first offset table 13 and the second offset table 14 are set, so that whether the distance that the testing staff can monitor electrothermal relay intuitively when beginning to detect moves to the detection position from initial position is with to detect the distance that moves to initial position after finishing from the detection position consistent, avoided the coarse adjustment to electrothermal relay bimetallic strip position, guarantee on streamline, accurately to finish the detection of electrothermal relay bimetallic strip position continuously, improved product yield.
Be to be understood that, although this instructions is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions only is for clarity sake, those skilled in the art should make instructions as a whole, technical scheme in each embodiment also can through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Above listed a series of detailed description only is specifying for feasibility embodiment of the present utility model; they are not to limit protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit does and all should be included within the protection domain of the present utility model.
Claims (5)
1. electrothermal relay bimetallic strip pick-up unit, location status for detection of the electrothermal relay bimetallic strip, described electrothermal relay bimetallic strip pick-up unit moves to predetermined measuring position to begin the detection to the location status of electrothermal relay bimetallic strip by the control 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 the control electrothermal relay from predetermined measuring position, 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 used for showing the variable that characterizes described electrothermal relay bimetallic strip location status;
The first offset table, described the first offset table are used for measuring and showing the distance that moves to the measuring position when electrothermal relay begins to detect from described initial position;
When being used for measurement and showing the electrothermal relay detection of end, the second offset table, described the second offset table move to the distance of initial position from described measuring position.
2. 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 used for cooperating with the 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.
3. electrothermal relay bimetallic strip pick-up unit according to claim 2, 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.
4. electrothermal relay bimetallic strip pick-up unit according to claim 2 is characterized in that described displacement transducer comprises linear displacement transducer.
5. 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 |
|---|---|---|---|
| CN 201220290443 CN202734785U (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290443 CN202734785U (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734785U true CN202734785U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220290443 Expired - Fee Related CN202734785U (en) | 2012-06-20 | 2012-06-20 | Thermal relay bimetallic strip detection device |
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| Country | Link |
|---|---|
| CN (1) | CN202734785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512521A (en) * | 2012-06-20 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | A device for detecting bimetallic strips of a thermorelay |
-
2012
- 2012-06-20 CN CN 201220290443 patent/CN202734785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512521A (en) * | 2012-06-20 | 2014-01-15 | 苏州工业园区高登威科技有限公司 | A device for detecting bimetallic strips of a thermorelay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140620 |
|
| EXPY | Termination of patent right or utility model |