CN205193635U - Portable culture medium heater - Google Patents
Portable culture medium heater Download PDFInfo
- Publication number
- CN205193635U CN205193635U CN201521028045.6U CN201521028045U CN205193635U CN 205193635 U CN205193635 U CN 205193635U CN 201521028045 U CN201521028045 U CN 201521028045U CN 205193635 U CN205193635 U CN 205193635U
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- circuit
- temperature
- pin
- heating element
- control circuit
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Abstract
The utility model discloses a portable culture medium heater, it relates to medical instrument technical field, keyboard circuit, temperature data collection circuit all are connected with single -chip control circuit's input, and single -chip control circuit's output is connected with digital tube display circuit, temperature -control circuit respectively, the utility model discloses can carry out the heating and the heat preservation of culture medium under multiple experiment condition (aseptic, have fungus), and lightly portable, convenient to use, the pollution rate of the aseptic experiment of greatly reduced has improved cell and molecular biology experiment success rate.
Description
Technical field
The utility model relates to technical field of medical instruments, is specifically related to a kind of portable nutrient culture media well heater.
Background technology
At present, nutrient culture media well heater conventional in cell and molecular biology experiment mostly is heating water bath, because volume is large, water bath often will clean, is generally placed in super-clean bench and uses outward.But there are the following problems: 1 volume is large, water bath inner storing water causes carrying inconvenient; 2 do not possess sterilising conditions: hot water very easily breed bacteria in water bath, and easily sticking to nutrient culture media body increases pollution probability to aseptic experiment; 3 cells and biomolecule very responsive to the change of temperature, need in experimentation, to keep suitable steady temperature, but traditional water bath well heater can only heat and can not be incubated, nutrient culture media often cools gradually because the experimental implementation time is longer and is difficult to maintain steady temperature, thus causes adverse effect to experiment.
Utility model content
The purpose of this utility model is defect for prior art and deficiency, provides a kind of portable nutrient culture media well heater.
In order to solve the problem existing for background technology, the portable nutrient culture media well heater of one of the present utility model, it comprises single chip machine controlling circuit, keyboard circuit, digital pipe display circuit, temperature collection circuit, temperature-control circuit; Keyboard circuit, temperature collection circuit are all connected with the input end of single chip machine controlling circuit, and the output terminal of single chip machine controlling circuit is connected with digital pipe display circuit, temperature-control circuit respectively; Described temperature-control circuit comprises fuse, gauge tap, heating element one, heating element two, temperature controller, rectifier, fan electromotor; One end of attaching plug is connected with one end of fuse, the other end of fuse is connected with one end of temperature controller, the other end of temperature controller is connected with one end of heating element two, the other end of heating element two is connected with one end of heating element one, 3 pin of rectifier respectively, the other end of heating element one is connected with 3 pin of gauge tap, the other end of attaching plug is connected with 1 pin of gauge tap, 2 pin of gauge tap are connected with the positive pole of diode, the negative pole of diode is connected with 1 pin of rectifier, and 2 pin, 4 pin of rectifier are connected with the two ends of fan electromotor respectively.
The utility model beneficial effect is: heating and the insulation that can carry out nutrient culture media under kinds of experiments condition (aseptic, have bacterium), and lightly portable, easy to use, greatly reduces the pollution rate of aseptic experiment, improves cell and molecular biology experiment success ratio.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the circuit diagram of temperature-control circuit in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1-2, this embodiment adopts following technical scheme: it comprises single chip machine controlling circuit, keyboard circuit, digital pipe display circuit, temperature collection circuit, temperature-control circuit, keyboard circuit, temperature collection circuit are all connected with the input end of single chip machine controlling circuit, and the output terminal of single chip machine controlling circuit is connected with digital pipe display circuit, temperature-control circuit respectively, described temperature-control circuit comprises fuse FU, gauge tap S, heating element one EH1, heating element two EH2, temperature controller ST, rectifier UR, fan electromotor M, one end of attaching plug XP is connected with one end of fuse FU, the other end of fuse FU is connected with one end of temperature controller ST, the other end of temperature controller ST is connected with one end of heating element two EH2, the other end of heating element two EH2 respectively with one end of heating element one EH1, 3 pin of rectifier UR connect, the other end of heating element one EH1 is connected with 3 pin of gauge tap S, the other end of attaching plug XP is connected with 1 pin of gauge tap S, 2 pin of gauge tap S are connected with the positive pole of diode VD, the negative pole of diode VD is connected with 1 pin of rectifier UR, 2 pin of rectifier UR, 4 pin are connected with the two ends of fan electromotor M respectively.
The principle of work of this embodiment is: the output signal (DS18B20 sensor collecting temperature signal) of each sensor inquired about successively by single-chip microcomputer; Then exported by display module after respective handling being carried out to input signal.Single chip machine controlling circuit take single-chip microcomputer as core, and coordinate temperature sensor, signal processing circuit, display circuit, output control circuit composition, the air themperature analog quantity that temperature sensor can detect by single-chip microcomputer converts digital quantity to, is shown on display.
Temperature collection circuit, its main element is that temperature sensor DS18B20 and 4.7k resistance are formed, its internal circuit can realize that temperature change value is changed into pulse signal and send to single-chip microcomputer, thus avoids the complex process that simulating signal is converted into digital signal.
Temperature-control circuit is in single-chip computer control system, and single-chip microcomputer always will carry out real-time control operation to by control object, therefore, in such a system, needs backward channel.Backward channel is after the process of chip microcontroller control algorithm, exports high and low level to the output channel interface of controlled device.The backward channel of system is an output channel, is characterized in vulnerabilities scan forceful electric power, and namely small-signal exports and realizes high-power control.
Keyboard circuit is carry out control single chip computer by the mode of input through keyboard, to meet the requirement of people.
Temperature-control circuit access 220V power supply, needs first to temperature controller ST design temperature scope before work.Select the heating shelves of 3 pin at gauge tap S after, electric current, through well heater one EH1 and well heater two EH2, makes well heater heat up.Fan electromotor is started working under the support of rectifier simultaneously, and the hot blast after being heated by well heater sends into moist closet.When moisturizing indoor temperature rise reach setting require upper temperature limit time, temperature controller ST work, disconnecting circuit, stops heating and action of blowing.When moisturizing indoor temperature decrease beyond gradually setting require lowest temperature time, temperature controller ST switch rebounds, recovery heating and air-supply action.Circulation like this, makes moist closet temperature control in the range of control of setting.
As gauge tap S select the air-cooled shelves of 2 pin time, this circuit only has rectifier and fan electromotor work, therefore normal temperature wind can be sent into moist closet rapidly, makes it cooling.
In order to the well heater overwork preventing from causing because temperature controller is malfunctioning causes short circuit to be caused danger, this circuit has been connected a fuse on general supply circuit, the fuse blows force disconnect power supply when line short circuit current is excessive.
This embodiment both also aseptically can carry out the heating of nutrient culture media under nonsterile conditions, experimentally demand can maintain steady temperature, and lightly portable, easy to use, greatly reduce the pollution rate of aseptic experiment, thus significantly improve cell and molecular biology experiment success ratio.
The above, only in order to the technical solution of the utility model to be described and unrestricted, other amendment that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. a portable nutrient culture media well heater, is characterized in that: it comprises single chip machine controlling circuit, keyboard circuit, digital pipe display circuit, temperature collection circuit, temperature-control circuit; Keyboard circuit, temperature collection circuit are all connected with the input end of single chip machine controlling circuit, and the output terminal of single chip machine controlling circuit is connected with digital pipe display circuit, temperature-control circuit respectively; Described temperature-control circuit comprises fuse, gauge tap, heating element one, heating element two, temperature controller, rectifier, fan electromotor; One end of attaching plug is connected with one end of fuse, the other end of fuse is connected with one end of temperature controller, the other end of temperature controller is connected with one end of heating element two, the other end of heating element two is connected with one end of heating element one, 3 pin of rectifier respectively, the other end of heating element one is connected with 3 pin of gauge tap, the other end of attaching plug is connected with 1 pin of gauge tap, 2 pin of gauge tap are connected with the positive pole of diode, the negative pole of diode is connected with 1 pin of rectifier, and 2 pin, 4 pin of rectifier are connected with the two ends of fan electromotor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028045.6U CN205193635U (en) | 2015-12-14 | 2015-12-14 | Portable culture medium heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028045.6U CN205193635U (en) | 2015-12-14 | 2015-12-14 | Portable culture medium heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193635U true CN205193635U (en) | 2016-04-27 |
Family
ID=55786608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521028045.6U Expired - Fee Related CN205193635U (en) | 2015-12-14 | 2015-12-14 | Portable culture medium heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422760A (en) * | 2017-08-09 | 2017-12-01 | 朱子锐 | A kind of cell constant temperature device for micro- sem observation |
-
2015
- 2015-12-14 CN CN201521028045.6U patent/CN205193635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422760A (en) * | 2017-08-09 | 2017-12-01 | 朱子锐 | A kind of cell constant temperature device for micro- sem observation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20181214 |