CN204824884U - Biochemical incubator dehumidifies - Google Patents
Biochemical incubator dehumidifies Download PDFInfo
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- CN204824884U CN204824884U CN201520518354.5U CN201520518354U CN204824884U CN 204824884 U CN204824884 U CN 204824884U CN 201520518354 U CN201520518354 U CN 201520518354U CN 204824884 U CN204824884 U CN 204824884U
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Abstract
The utility model discloses a biochemical incubator dehumidifies, including the box, still include moisture detection circuit and DC power supply, moisture detection circuit is including the response module direct current relay coil for the internal portion's humidity of detection case, and be provided with first default, when outside humidity was higher than first default, direct current relay coil got electric output abnormal signal, and the DC power supply power supply is passed through to the response module, the time delay module including direct current normally open contact and the time delay relay coil who is controlled by direct current relay coil, exceedes firstly when predetermineeing the time when receiving the abnormal signal who lasts, and the relay coil that delays gets, report an emergency and ask for help or increased vigilance the module, including the delay relay normally open contact who is controlled by the delay relay coil for it is unusual to remind the inside humidity of user's box, the heating wire sets up in inside parallel -series connection in the direct current normally open contact of box, when humidity is too high, can play the effect of a dehumidification, reminds user people wet for driving simultaneously.
Description
Technical field
The utility model relates to a kind of biological bacterium culture device, and more particularly, it relates to a kind of dehumidifying biochemical cultivation case.
Background technology
Biochemical cultivation case has refrigeration and heating bidirectional temp regulation system; the function of temperature-controllable; be the important tests equipment in the scientific research institution of the industries such as biology, genetic engineering, medical science, health and epidemic prevention, environment protection, agricultural herding, universities and colleges, production unit or department laboratory, be widely used in cryogenic thermostat test, culture experiment, envrionment test etc.Biochemical cultivation case controller circuitry is made up of temperature sensor, voltage comparator and control executive circuit.Deposit because it is widely used in microbial culture, so higher to its temperature internal temperature precision prescribed, and also higher to the environmental requirement of inside.When biochemical cultivation case uses, the problem of outbalance is at present: the used time should not drive tide process to equipment downtime; concrete grammar is as follows: 1, outwelled by the water of case inner bottom part drip tray; temperature is set in 42 DEG C, runs 5 hours, and opened a chamber door every two hours and bleed off moisture.2 and should regularly (the general first quarter) by working conditions run 2-3 days, to drive away the moisture of electrical appliance part, avoid damage related devices.Above-mentioned two kinds of processing modes are all that inner moisture is overweight causes bacteria breed in order to prevent, thalline normal growth when impact is cultivated.
But by the mode of artificial supervision, can exist unavoidably forget or misoperation etc. other can not resist situation, interior humidity also can be caused unavoidably too high, and user cannot detect this situation, so the situation affecting culture effect still may be caused.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide one can automatically detect casing interior humidity, and by nichrome wire by dehumidification treatments, simultaneously when humidity cannot be lowered, can remind the one dehumidifying biochemical cultivation case of user.
For achieving the above object, the utility model provides following technical scheme: a kind of dehumidifying biochemical cultivation case, comprise casing, also comprise humidity measuring circuit and direct supply, described humidity measuring circuit comprises induction module, comprise direct-current relay coil, for detecting casing interior humidity, and be provided with the first preset value, when outer moisture is higher than the first preset value, described direct-current relay coil obtains electric output abnormality signal, and described induction module is by described DC power supply; Time delay module, comprises the direct-current relay normally opened contact and timing relay coil that are controlled by direct-current relay coil, and when receiving lasting abnormal signal more than the first Preset Time, described timing relay coil obtains electric; Alarm module, comprises the timing relay normally opened contact being controlled by timing relay coil, for reminding user's box house humidity abnormal; Nichrome wire, is arranged at box house parallel-series in described direct-current relay normally opened contact.
Each module is independently arranged, under normal circumstances, only has induction module meeting continuous firing, and by DC power supply (such as battery), the power consumption caused is less, when interior humidity is larger, subsequent module just can be enabled work, and carry out Signal transmissions by rly., structure is simple, speed of response is very fast, its principle of work is as follows, when equipment quits work, if humidity is too high, so in order to prevent bacterium from growing when equipment quits work, by enable nichrome wire, exsiccation is carried out to inside, prevent bacteria breed, ensure that internal medium humidity declines, but now need to ensure that chamber door is held open state, not so electric energy can be caused to waste without reason (its power consumption is generally at 1000w), so arrange time delay module, when after time delay first Preset Time, judge that this situation cannot meet with a response or alleviate, so drive alarm module to remind user's humidity abnormal, need to carry out dehumidification treatments, structure is simple, ensure that the bacteria breed probability of occurrence of box house is reduced to minimum.
The utility model can be set to further: described induction module comprises induction part, for responding to casing interior humidity, and humidity size is converted into sampled voltage; Reference section, for providing votage reference; Comparing section, is coupled to induction part and reference section, when sampled voltage is higher than votage reference, exports comparison signal; Enforcement division, is coupled to comparing section, when receiving comparison signal, controlling direct-current relay coil and obtaining electric.By such setting, each element portion works alone, and facilitates Measuring error.
The utility model can be set to further: described induction part comprises the first resistance, the second resistance and the hygristor that are arranged in series successively, and the node that described first resistance and the second resistance couple provides sampled voltage, and described first resistance is set to adjustable resistance.First resistance is set to adjustable resistance, and the precision that can realize Humidity Detection regulates, and arranges the second resistance simultaneously, the abrupt change of voltage produced when humidity can be prevented lower.
The utility model can be set to further: described comparison module comprises comparer, and its positive input terminal is connected to induction part, and its negative input end is connected to reference section.
The utility model can be set to further: described reference section comprises the 3rd resistance, the 4th resistance and the 5th resistance that are arranged in series successively, and the node that described 3rd resistance and the 4th resistance couple provides votage reference, and described 3rd resistance is set to adjustable resistance.3rd resistance is set to adjustable resistance, and the precision that can realize Humidity Detection regulates, and arranges the 5th resistance simultaneously, the abrupt change of voltage produced when humidity can be prevented lower.
The utility model can be set to further: described base modules also comprises the first switching tube and the 6th resistance that are arranged in series, the controlled terminal of described first switching tube is connected to the output terminal of comparer, during described first switching tube conducting, described 6th resistance and described 5th resistor coupled in parallel.By arranging the 6th resistance and the first switching tube, when comparer exports high level (humidity is too high), so the first switching tube conducting, 6th resistance and the 5th resistor coupled in parallel, the node voltage value causing the 5th resistance and the 4th resistance to couple declines, and similarly reference voltage value declines, if humidity exists detection fluctuation like this, comparer output jitter would not be made, ensure the work-ing life of subsequent module.
The utility model can be set to further: described alarm module also comprises hummer and warning light.By arranging warning like this, structure is simply easy to realize.
By adopting technique scheme, compared to existing technology, serve following beneficial effect: each module is independently arranged, under normal circumstances, only has induction module meeting continuous firing, and by DC power supply (such as battery), the power consumption caused is less, when interior humidity is larger, subsequent module just can be enabled work, and carry out Signal transmissions by rly., structure is simple, speed of response is very fast, its principle of work is as follows, when equipment quits work, if humidity is too high, so in order to prevent bacterium from growing when equipment quits work, by enable nichrome wire, exsiccation is carried out to inside, prevent bacteria breed, ensure that internal medium humidity declines, but now need to ensure that chamber door is held open state, not so electric energy can be caused to waste without reason (its power consumption is generally at 1000w), so arrange time delay module, when after time delay first Preset Time, judge that this situation cannot meet with a response or alleviate, so drive alarm module to remind user's humidity abnormal, need to carry out dehumidification treatments, structure is simple, ensure that the bacteria breed probability of occurrence of box house is reduced to minimum.
Accompanying drawing explanation
Fig. 1 is the utility model schematic circuit diagram.
Reference numeral: 1, induction module; 11, induction part; 12, reference section; 13, comparing section; 14, enforcement division; 2, time delay module; 3, nichrome wire; 4, alarm module.
Embodiment
With reference to Fig. 1, the utility model is described further.
A kind of dehumidifying biochemical cultivation case, comprise casing, also comprise humidity measuring circuit and direct supply, described humidity measuring circuit comprises
Induction module 1, comprises direct-current relay coil KM1, for detecting casing interior humidity, and be provided with the first preset value, when outer moisture is higher than the first preset value, described direct-current relay coil KM1 obtains electric output abnormality signal, and described induction module 1 is by described DC power supply; Comprise
Induction part 11, for responding to casing interior humidity, and is converted into sampled voltage by humidity size; Comprise the first resistance R1, the second resistance R2 and the hygristor that are arranged in series successively, the node that described first resistance R1 and the second resistance R2 couples provides sampled voltage, and described first resistance R1 is set to adjustable resistance.First resistance R1 is set to adjustable resistance, and the precision that can realize Humidity Detection regulates, and arranges the second resistance R2 simultaneously, the abrupt change of voltage produced when humidity can be prevented lower.
Reference section 12, for providing votage reference; Comprise the 3rd resistance R3, the 4th resistance R4 and the 5th resistance R5 that are arranged in series successively, the node that described 3rd resistance R3 and the 4th resistance R4 couples provides votage reference, and described 3rd resistance R3 is set to adjustable resistance.3rd resistance R3 is set to adjustable resistance, and the precision that can realize Humidity Detection regulates, and arranges the 5th resistance R5 simultaneously, the abrupt change of voltage produced when humidity can be prevented lower.Also comprise the first switching tube and the 6th resistance R6 that are arranged in series, the controlled terminal of described first switching tube is connected to the output terminal of comparer, and during described first switching tube conducting, described 6th resistance R6 is in parallel with described 5th resistance R5.By arranging the 6th resistance R6 and the first switching tube, when comparer exports high level (humidity is too high), so the first switching tube conducting, 6th resistance R6 is in parallel with the 5th resistance R5, the node voltage value causing the 5th resistance R5 and the 4th resistance R4 to couple declines, and similarly reference voltage value declines, if humidity exists detection fluctuation like this, comparer output jitter would not be made, ensure the work-ing life of subsequent module.First switching tube is preferably metal-oxide-semiconductor.
Comparing section 13, is coupled to induction part 11 and reference section 12, when sampled voltage is higher than votage reference, exports comparison signal; Comprise comparer, its positive input terminal is connected to induction part 11, and its negative input end is connected to reference section 12.Described comparer is preferably LM355.
Enforcement division 14, is coupled to comparing section 13, when receiving comparison signal, controlling direct-current relay coil KM1 and obtaining electric.By such setting, each element portion works alone, and facilitates Measuring error.Comprise and be arranged at the diode of comparator output terminal for providing pipe to fall 0.7 or 1.2V, the negative electrode of described diode is connected to the base stage of a NPN pipe, and the emtting electrode of described NPN pipe is connected to the 7th resistance R7 and direct-current relay coil KM1.
Time delay module 2, comprises the direct-current relay normally opened contact km1 and timing relay coil KT1 that are controlled by direct-current relay coil KM1, and when receiving lasting abnormal signal more than the first Preset Time, described timing relay coil KT1 obtains electric;
Alarm module 4, comprises the timing relay normally opened contact kt1 being controlled by timing relay coil KT1, for reminding user's box house humidity abnormal; Hummer SP and warning light EL.By arranging warning like this, structure is simply easy to realize.
Nichrome wire 3, is arranged at box house parallel-series in described direct-current relay normally opened contact km1.Its model does not limit, and is preferably 220V nichrome wire.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. dehumidify a biochemical cultivation case, and comprise casing, it is characterized in that: also comprise humidity measuring circuit and direct supply, described humidity measuring circuit comprises
Induction module, comprises direct-current relay coil, for detecting casing interior humidity, and be provided with the first preset value, when outer moisture is higher than the first preset value, described direct-current relay coil obtains electric output abnormality signal, and described induction module is by described DC power supply;
Time delay module, comprises the direct-current relay normally opened contact and timing relay coil that are controlled by direct-current relay coil, and when receiving lasting abnormal signal more than the first Preset Time, described timing relay coil obtains electric;
Alarm module, comprises the timing relay normally opened contact being controlled by timing relay coil, for reminding user's box house humidity abnormal;
Nichrome wire, is arranged at box house parallel-series in described direct-current relay normally opened contact.
2. a kind of dehumidifying biochemical cultivation case as claimed in claim 1, is characterized in that: described induction module comprises
Induction part, for responding to casing interior humidity, and is converted into sampled voltage by humidity size;
Reference section, for providing votage reference;
Comparing section, is coupled to induction part and reference section, when sampled voltage is higher than votage reference, exports comparison signal;
Enforcement division, is coupled to comparing section, when receiving comparison signal, controlling direct-current relay coil and obtaining electric.
3. a kind of dehumidifying biochemical cultivation case as claimed in claim 2, it is characterized in that: described induction part comprises the first resistance, the second resistance and the hygristor that are arranged in series successively, the node that described first resistance and the second resistance couple provides sampled voltage, and described first resistance is set to adjustable resistance.
4. a kind of dehumidifying biochemical cultivation case as claimed in claim 2 or claim 3, it is characterized in that: described comparison module comprises comparer, its positive input terminal is connected to induction part, and its negative input end is connected to reference section.
5. a kind of dehumidifying biochemical cultivation case as claimed in claim 4, it is characterized in that: described reference section comprises the 3rd resistance, the 4th resistance and the 5th resistance that are arranged in series successively, the node that described 3rd resistance and the 4th resistance couple provides votage reference, and described 3rd resistance is set to adjustable resistance.
6. a kind of dehumidifying biochemical cultivation case as claimed in claim 5, it is characterized in that: described base modules also comprises the first switching tube and the 6th resistance that are arranged in series, the controlled terminal of described first switching tube is connected to the output terminal of comparer, during described first switching tube conducting, described 6th resistance and described 5th resistor coupled in parallel.
7. the one dehumidifying biochemical cultivation case as described in claim 1 or 2 or 3, is characterized in that: described alarm module also comprises hummer and warning light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518354.5U CN204824884U (en) | 2015-07-17 | 2015-07-17 | Biochemical incubator dehumidifies |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518354.5U CN204824884U (en) | 2015-07-17 | 2015-07-17 | Biochemical incubator dehumidifies |
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| CN204824884U true CN204824884U (en) | 2015-12-02 |
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| CN201520518354.5U Active CN204824884U (en) | 2015-07-17 | 2015-07-17 | Biochemical incubator dehumidifies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427547A (en) * | 2015-12-21 | 2016-03-23 | 天津市九鼎云图智能数据技术有限公司 | Over-moisture alarm |
| CN105892426A (en) * | 2016-04-14 | 2016-08-24 | 武汉百络优物联科技有限公司 | Wall-mounted all-in-one controller |
-
2015
- 2015-07-17 CN CN201520518354.5U patent/CN204824884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427547A (en) * | 2015-12-21 | 2016-03-23 | 天津市九鼎云图智能数据技术有限公司 | Over-moisture alarm |
| CN105892426A (en) * | 2016-04-14 | 2016-08-24 | 武汉百络优物联科技有限公司 | Wall-mounted all-in-one controller |
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