CN202734780U - Thermal relay bimetallic strip detection device - Google Patents
Thermal relay bimetallic strip detection device Download PDFInfo
- Publication number
- CN202734780U CN202734780U CN 201220282806 CN201220282806U CN202734780U CN 202734780 U CN202734780 U CN 202734780U CN 201220282806 CN201220282806 CN 201220282806 CN 201220282806 U CN201220282806 U CN 201220282806U CN 202734780 U CN202734780 U CN 202734780U
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- CN
- China
- Prior art keywords
- bimetallic strip
- electrothermal relay
- relay bimetallic
- displacement transducer
- probe
- Prior art date
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Abstract
The utility model provides a thermal relay bimetallic strip detection device which can detect the position states of thermal relay bimetallic strips. The thermal relay bimetallic strip detection device includes probes which cooperate with the thermal relay bimetallic strips, displacement sensors which are electrically connected with the probes to detect the position states of the thermal relay bimetallic strips via the probes, a display device which is electrically connected with the displacement sensors and is used for displaying a metering value representing the position states of the thermal relay bimetallic strips. With the help of the probes, the displacement sensors and the display device which cooperate with one another, the thermal relay bimetallic strip detection device can display the position states of the thermal relay bimetallic strips in real time, so technical personnel can adjust timely to guarantee the product quality.
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.
But in existing streamline process, the location status of electrothermal relay bimetallic strip can not meet original design fully, usually can owing to the deviation of its location status, cause the undesired of electrothermal relay work.So need a kind of device, can detect in real time the location status of electrothermal relay bimetallic strip, so that the technician in time adjusts the position of bimetallic strip.
The utility model content
The purpose of this utility model is to provide a kind of electrothermal relay bimetallic strip pick-up unit, and its probe, displacement transducer and display device by working in coordination can detect the location status of terminal in the electrothermal relay in real time.
For realizing above-mentioned utility model purpose, the utility model provides a kind of electrothermal relay bimetallic strip pick-up unit, and for detection of the location status of electrothermal relay bimetallic strip, described device comprises:
Probe, described probe are used for cooperating with described electrothermal relay bimetallic strip;
Displacement transducer, described displacement transducer and described probe are electrically connected, and described displacement transducer is by the location status of the described electrothermal relay bimetallic strip of described probe in detecting;
Display device, described display device and described displacement transducer are electrically connected, and are used for showing the variable that characterizes described electrothermal relay bimetallic strip location status.
As further improvement of the utility model, described probe comprises main part, from the extended needle-like of described main part section, and the probe that is positioned at described needle-like section end.
As further improvement of the utility model, the quantity of described probe is set at least two.
As further improvement of the utility model, parallel to each other between described at least two probes.
As further improvement of the utility model, parallel to each other between the needle-like section of described at least two probes.
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, probe, displacement transducer and display device that electrothermal relay bimetallic strip pick-up unit of the present utility model is worked in coordination by setting, can be in real time the location status of electrothermal relay bimetallic strip be clearly characterized and show, make things convenient for the technician to regulate timely, guarantee product quality.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment electrothermal relay bimetallic strip pick-up unit;
Fig. 2 is the structural representation of the first probe in the utility model one embodiment electrothermal relay bimetallic strip pick-up unit;
Fig. 3 is the structural representation of the second probe in 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.
Join Fig. 1, introduce an embodiment of the utility model electrothermal relay bimetallic strip pick-up unit 100.This electrothermal relay bimetallic strip pick-up unit 100 comprises probe, displacement transducer 20 and display device (not shown).
Cooperation is with reference to Fig. 2 and Fig. 3, and in the present embodiment, probe 10 comprises the first probe 11 and the second probe 12.The difference part of the first probe 11 and the second probe 12 is, the main part 111 of the first probe 11 has a kink 113, when this first probe 11 was installed on the electrothermal relay bimetallic strip pick-up unit 100 of the present utility model, this kink 113 was positioned at compared to main part 111 more away from the position of electrothermal relay bimetallic strip pick-up unit 100 the needle-like section 112 of the first probe 11.Such design is to step down for the driving lever (not indicating) to these the first probe 11 rear sides.
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 20, it can convert the straight line mechanical displacement to electric signal.
Display device and displacement transducer 20 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.
In the above-described embodiment, the quantity of probe 10 is set to two at least.The quantity of this probe 10 is to determine according to the quantity of bimetallic strip in the electrothermal relay, and in the present embodiment, for example the quantity of this probe is set to three, is parallel to each other between these three probes.As preferred embodiment, parallel to each other between the needle-like section of these three probes.
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 (8)
1. electrothermal relay bimetallic strip pick-up unit, the location status for detection of the electrothermal relay bimetallic strip is characterized in that, described device comprises:
Probe, described probe are used for cooperating with described electrothermal relay bimetallic strip;
Displacement transducer, described displacement transducer and described probe are electrically connected, and described displacement transducer is by the location status of the described electrothermal relay bimetallic strip of described probe in detecting;
Display device, described display device and described displacement transducer are electrically connected, and are used for showing the variable that characterizes described electrothermal relay bimetallic strip location status.
2. electrothermal relay bimetallic strip pick-up unit according to claim 1 is characterized in that, described probe comprises main part, from the extended needle-like of described main part section, and the probe that is positioned at described needle-like section end.
3. electrothermal relay bimetallic strip pick-up unit according to claim 2 is characterized in that, the quantity of described probe is set at least two.
4. electrothermal relay bimetallic strip pick-up unit according to claim 3 is characterized in that, and is parallel to each other between described at least two probes.
5. electrothermal relay bimetallic strip pick-up unit according to claim 3 is characterized in that, and is parallel to each other between the needle-like section of described at least two probes.
6. electrothermal relay bimetallic strip pick-up unit according to claim 1, 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.
7. electrothermal relay bimetallic strip pick-up unit according to claim 1 is characterized in that, described displacement transducer comprises linear displacement transducer.
8. 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 201220282806 CN202734780U (en) | 2012-06-15 | 2012-06-15 | Thermal relay bimetallic strip detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282806 CN202734780U (en) | 2012-06-15 | 2012-06-15 | Thermal relay bimetallic strip detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734780U true CN202734780U (en) | 2013-02-13 |
Family
ID=47660470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282806 Expired - Fee Related CN202734780U (en) | 2012-06-15 | 2012-06-15 | Thermal relay bimetallic strip detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734780U (en) |
-
2012
- 2012-06-15 CN CN 201220282806 patent/CN202734780U/en not_active Expired - Fee Related
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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: 20140615 |
|
| EXPY | Termination of patent right or utility model |