CN205539164U - Detect electrophoresis apparatus electric leakage device - Google Patents
Detect electrophoresis apparatus electric leakage device Download PDFInfo
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- CN205539164U CN205539164U CN201620169255.5U CN201620169255U CN205539164U CN 205539164 U CN205539164 U CN 205539164U CN 201620169255 U CN201620169255 U CN 201620169255U CN 205539164 U CN205539164 U CN 205539164U
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- alarm device
- electric leakage
- reference resistance
- electrophresis apparatus
- voltage
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Abstract
The utility model provides a detect electrophoresis apparatus electric leakage device, includes the electrophoresis apparatus casing, including detection circuitry, detection circuitry one end and electrophoresis apparatus casing welding other end ground connection, detection circuitry includes an alarm device, contrast module and the 2nd alarm device, an alarm device with electrophoresis apparatus casing series connection ground connection, detection circuitry can form its work of current potential commission on an alarm device after the electrophoresis apparatus electric leakage, contrast module includes benchmark unit and voltage comparater, the benchmark unit is used for providing reference voltage, the voltage of voltage comparater contrast electrophoresis apparatus electric leakage and reference voltage's value and outlet driving signal, the 2nd alarm device is controlled by drive signal work, and detection circuitry can form its work of current potential commission on an alarm device after the electrophoresis apparatus electric leakage, indicates, and behind the electric leakage overtension, the 2nd alarm device of voltage comparater output drive signal control carries out the work warning.
Description
Technical field
This utility model relates to electrophresis apparatus, detects electrophresis apparatus electric leakage device particularly to one.
Background technology
Electrophoretic techniques is molecular biology research indispensable important analysis means, electrophoresis, refer to charged particle motion in the electric field, different material due to the electrically charged and difference of molecular weight, movement velocity is different the most in the electric field, according to this feature, application electrophoresis method just can carry out qualitative or quantitative analysis to different material, owing to the electrophoresis thing in electrophresis apparatus may exist electrification phenomenon, so electrophresis apparatus is after the state of work, forbid human contact.
The Chinese patent of Application No. 201220047113.3, a kind of electrophresis apparatus, including display floater, circuit board and fan, described display floater both sides are provided with electrode jack, described display floater central authorities are provided with LCDs and 6 buttons, and described circuit board is located at after described display floater and vertical parallel with display floater；Fan is located at after circuit board, the inner space making electrophresis apparatus is reasonably utilized, and it is more satisfactory to dispel the heat, it is separately provided several button on a display panel and just can realize the function of science and education, easy to operate, but this kind of electrophresis apparatus is easily generated the phenomenons such as electric leakage when experiment, make to be formed voltage on the surface of electrophresis apparatus housing, existing electrophresis apparatus solves electrical leakage problems often through ground connection, but lack the alarm ability of the drain conditions to different electric pressures, and when low-voltage leakage occurs, preserve data maintenance of cutting off the electricity supply in time, when high pressure electric leakage occurs, power-off at once is then needed to overhaul, can have the electrophresis apparatus of the drain conditions of the different electric pressure of warning, yet there are no record in the prior art.
Utility model content
The purpose of this utility model is to provide a kind of detection electrophresis apparatus electric leakage device, can warn the drain conditions of different electric pressure.
Above-mentioned purpose of the present utility model has the technical scheme that
A kind of detection electrophresis apparatus electric leakage device, including electrophresis apparatus housing and testing circuit, described testing circuit includes a detection branch, this detection branch include an earth terminal and one with the test side of electrophresis apparatus case weld, the first alarm device it is serially connected with between test side and earth terminal, the running voltage of described first alarm device is in low-voltage leakage threshold range, described testing circuit also includes contrasting module and Secondary Report alarm device, described contrast module includes reference cell and voltage comparator, described reference cell is used for providing reference voltage, this reference voltage is the lower limit of high pressure electric leakage threshold value, when the voltage of electric leakage is more than reference voltage, described contrast module output drive signal, described Secondary Report alarm device is controlled by driving signal work.
By using technique scheme, detection electrophresis apparatus electric leakage device is used for monitoring drain conditions and reports to the police, and when electrophresis apparatus low-voltage leakage, the first alarm device of detection branch is reported to the police, and the Secondary Report alarm device contrasting module when electrophresis apparatus high pressure leaks electricity is reported to the police.
This utility model can be further arranged to, described reference cell includes the first reference resistance, the second reference resistance and the 3rd reference resistance, described 3rd reference resistance is adjustable resistance, described second reference resistance and the 3rd reference resistance series connection ground connection, the node of described second reference resistance and the first reference resistance couples voltage comparator.
By using technique scheme, the second reference resistance, the 3rd reference resistance and the first reference resistance carry out dividing potential drop, and the 3rd reference resistance is adjustable resistance so that reference voltage can be adjusted.
This utility model can be further arranged to, and described reference cell includes that the first reference resistance and the second reference resistance, the node of described first reference resistance and the second reference resistance couple voltage comparator, and described first reference resistance is adjustable resistance.
By employing technique scheme, the first reference resistance and the second reference resistance dividing potential drop and then offer reference voltage, and the first reference resistance is adjustable resistance so that reference voltage can be adjusted.
This utility model can be further arranged to, and described testing circuit includes that filter capacitor, described filter capacitor are arranged in parallel with described first alarm device.
By using technique scheme, filter capacitor has the effect of buffering, enables the first alarm device to work a period of time.
This utility model can be further arranged to, and described first display lamp is light emitting diode.
By using technique scheme, light emitting diode has the features such as energy-saving and environmental protection, safety, life-span length, low-power consumption, low grade fever, high brightness, light modulation waterproof, miniature, shockproof, easy, light beam concentration, easy maintenance, can be widely applied to various instruction, display.
This utility model can be further arranged to, and described second display lamp is light emitting diode.
By using technique scheme, light emitting diode has the features such as energy-saving and environmental protection, safety, life-span length, low-power consumption, low grade fever, high brightness, light modulation waterproof, miniature, shockproof, easy, light beam concentration, easy maintenance, can be widely applied to various instruction, display.
This utility model can be further arranged to, and described first alarm device is connected a protective resistance.
By using technique scheme, protective resistance has the effect of dividing potential drop, has the effect of protection to the first alarm device.
This utility model can be further arranged to, and described first alarm device is speaker.
By using technique scheme, speaker has the effect of prompting.
This utility model can be further arranged to, and described Secondary Report alarm device is speaker.
By using technique scheme, speaker has the effect of prompting.
In sum, this utility model has the advantages that
nullDetection electrophresis apparatus electric leakage device，Testing circuit one end is connected other end ground connection with electrophresis apparatus，After electrophresis apparatus leaks electricity, testing circuit can form its work of electromotive force official post on the first display lamp，Indicate，After electrical leakage voltage is too high，Voltage comparator output drive signal controls Secondary Report alarm device and is operated warning，First alarm device and Secondary Report alarm device are light emitting diode，Light emitting diode has energy-conservation、Environmental protection、Safety、Life-span is long、Low-power consumption、Low grade fever、High brightness、Waterproof、Miniature、Shockproof、Easily light modulation、Light beam is concentrated、The features such as easy maintenance，Can be widely applied to various instruction、Display，Reference cell includes the first reference resistance、Second reference resistance and the 3rd reference resistance，Described second reference resistance and the 3rd the most quasi-resistant series ground connection，The node of described second reference resistance and the first reference resistance couples voltage comparator，Testing circuit includes filter capacitor，Described filter capacitor is arranged in parallel with described first alarm device，Filter capacitor has the effect of buffering，The first alarm device work can be made more stable.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of embodiment 1；
Fig. 2 is the circuit diagram of embodiment 2；
Fig. 3 is the circuit diagram of embodiment 3；
Fig. 4 is the circuit diagram of embodiment 4.
In figure, the 110, first indicating module；120, contrast module；130, voltage comparator；140, reference cell.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment one
Detection electrophresis apparatus electric leakage device circuit diagram shown in Fig. 1, one end of testing circuit and electrophresis apparatus case weld other end ground connection, after electrophresis apparatus leaks electricity, testing circuit can form electric potential difference on the first alarm device light emitting diode D1 and turn it on work, indicate, after electrical leakage voltage is too high, voltage comparator 130 output drive signal controls Secondary Report alarm device light emitting diode D2 and is operated warning.
Divider resistance R5 can carry out dividing potential drop to the electrical leakage voltage of power supply, contrast module 120 includes reference cell 140 and voltage comparator 130, the electrical leakage voltage that the reference voltage of reference cell 140 offer and divider resistance R5 are shared is proportional, voltage comparator 130 contrasts voltage and the value of reference voltage the output drive signal of electrophresis apparatus electric leakage, and described second display lamp is controlled by driving signal work.
First indicating module includes the first display lamp D1 and protective resistance R5, and protective resistance R5 protects the first display lamp D5 will not puncture because voltage is excessive.
Reference cell includes the first reference voltage R1, the second reference voltage R2 and the 3rd reference voltage R3, and described second reference voltage R2 and the 3rd the most quasi-voltage R3 series connection ground connection, the node of described second reference voltage R2 and the first reference voltage R1 couples voltage comparator.
Embodiment two
With reference to Fig. 2, embodiment two is with the difference of embodiment one, and reference cell includes that the first reference resistance and the second reference resistance, the node of described first reference resistance and the second reference resistance couple voltage comparator, and described first reference resistance is adjustable resistance.
Embodiment three
With reference to Fig. 3, embodiment three is with the difference of embodiment one, and the first alarm device is speaker, and Secondary Report alarm device is speaker.
Embodiment four
With reference to Fig. 4, embodiment four is with the difference of embodiment two, and the first alarm device is speaker, and Secondary Report alarm device is speaker.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (8)
1. a detection electrophresis apparatus electric leakage device, including electrophresis apparatus housing, it is characterized in that, including testing circuit, described testing circuit one end and electrophresis apparatus case weld other end ground connection, described testing circuit includes the first alarm device, contrast module and Secondary Report alarm device, first alarm device is connected with described electrophresis apparatus housing ground connection, after electrophresis apparatus leaks electricity, testing circuit can form its work of electromotive force official post on the first alarm device, described contrast module includes reference cell and voltage comparator, described reference cell is used for providing reference voltage, the voltage of voltage comparator contrast electrophresis apparatus electric leakage and the value of reference voltage output drive signal, described Secondary Report alarm device is controlled by driving signal work.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, it is characterized in that: described reference cell includes the first reference resistance, the second reference resistance and the 3rd reference resistance, described 3rd reference resistance is adjustable resistance, described second reference resistance and the 3rd reference resistance series connection ground connection, the node of described second reference resistance and the first reference resistance couples voltage comparator.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, it is characterized in that: described reference cell includes the first reference resistance and the second reference resistance, the node of described first reference resistance and the second reference resistance couples voltage comparator, and described first reference resistance is adjustable resistance.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, is characterized in that: described testing circuit includes that filter capacitor, described filter capacitor are arranged in parallel with described first alarm device.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, is characterized in that: described first alarm device is light emitting diode.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, is characterized in that: described Secondary Report alarm device is light emitting diode.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, is characterized in that: described first alarm device is speaker.
A kind of detection electrophresis apparatus electric leakage device the most according to claim 1, is characterized in that: described Secondary Report alarm device is speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169255.5U CN205539164U (en) | 2016-03-04 | 2016-03-04 | Detect electrophoresis apparatus electric leakage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169255.5U CN205539164U (en) | 2016-03-04 | 2016-03-04 | Detect electrophoresis apparatus electric leakage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539164U true CN205539164U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620169255.5U Expired - Fee Related CN205539164U (en) | 2016-03-04 | 2016-03-04 | Detect electrophoresis apparatus electric leakage device |
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| Country | Link |
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| CN (1) | CN205539164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132407A (en) * | 2017-12-13 | 2018-06-08 | 国网山东省电力公司枣庄供电公司 | Core aligning device for cables and method |
-
2016
- 2016-03-04 CN CN201620169255.5U patent/CN205539164U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132407A (en) * | 2017-12-13 | 2018-06-08 | 国网山东省电力公司枣庄供电公司 | Core aligning device for cables and method |
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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: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |