CN104368403A - Biological safety cabinet ultraviolet lamp linkage controller and control method thereof - Google Patents
Biological safety cabinet ultraviolet lamp linkage controller and control method thereof Download PDFInfo
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- CN104368403A CN104368403A CN201310353539.0A CN201310353539A CN104368403A CN 104368403 A CN104368403 A CN 104368403A CN 201310353539 A CN201310353539 A CN 201310353539A CN 104368403 A CN104368403 A CN 104368403A
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- magnetic switch
- uviol lamp
- cabinet door
- circuit
- relay
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Abstract
The invention discloses a biological safety cabinet ultraviolet lamp linkage controller and a control method thereof; the biological safety cabinet ultraviolet lamp linkage controller comprises at least two magnetically controlled switches, and a control circuit; the at least two magnetically controlled switches are arranged on a cabinet door and a slide rail, and the space between the two magnetically controlled switches is greater than the action distance; the control circuit is connected with the magnetically controlled switches and can be used for linkage control of on and off of an ultraviolet lamp by the magnetically controlled switches, the control circuit comprises a relay connected with an ultraviolet lamp switch, and a singlechip connected with the relay, the input end of the singlechip is connected with the output end of an and-gate circuit, the input end of the and-gate circuit is respectively connected to the at least two magnetically controlled switches, when the at least two magnetically controlled switches arranged on the cabinet door and a door frame are corresponding to the position of permanent magnets in corresponding dry reed tubes, signals are sent to the connected gate circuit, when the gate circuit receives the signals sent by all the magnetically controlled switches, signals are sent to the singlechip, the singlechip controls the relay to turn on, the ultraviolet lamp is turned on; if the gate circuit does not receive any signal sent by any of the magnetically controlled switch, the singlechip controls the relay to turn off, and the ultraviolet lamp is turned off.
Description
Technical field
The present invention relates to Biohazard Safety Equipment field, be specifically related to a kind of Biohazard Safety Equipment uviol lamp linkage controller and control method thereof.
Background technology
Biohazard Safety Equipment be for operation primary culture, bacterium strain and diagnostic sample etc. there is infective experiment material time; be used for protecting operator, laboratory environment and experiment material, make it avoid being exposed to issuable infectious aerosol and spatters in aforesaid operations process and design.
Biohazard Safety Equipment is widely used in health care, disease prevention and control, food hygiene, bio-pharmaceuticals, the fields such as environmental monitoring and different kind organism laboratory, is the important foundation ensureing bio-safety and Environmental security, belongs to the category that " people's livelihood " measures.Before 30 years, Biohazard Safety Equipment detects to be carried out abroad, the standard of current Main Basis European Union or the U.S..At home, also ununified at present Biohazard Safety Equipment detects national standard, and Biohazard Safety Equipment detection method is very chaotic, the standard of the existing Ministry of Construction, has again the standard of Bureau of Drugs Supervision, adopts the company standard of EU criteria, Unite States Standard or each factory in addition.
Chinese invention patent prospectus CN101125304A discloses a kind of outer rotor fan type fully ventilating biology safety cabinet for biological experiment operating.It comprises upper wardrobe body part, purification workspace part, operating desk part, holder part and electrical control part, its upper wardrobe body part is arranged in holder part, upper wardrobe body part internal upper part is forward is purification workspace part, bottom is operating desk part, electrical control part is positioned at upper wardrobe body part and purification workspace partial interior, and described upper wardrobe body part top is provided with negative pressure packet portion rearward; The sealing of its blasting high-efficiency filter and exhaust-air filter all adopts double-sided compression formula to seal, and middle exposed part is in a negative pressure region and zero-pressure region, guarantees that the clean working region ne-leakage of Biohazard Safety Equipment pollutes and contaminated air is not discharged to the outside; Adopt filter to compress buckle device, front and back seal cover board, high efficiency particulate air filter jack-up formula structure, make structural design both take into account complete machine sealing, operate steadily, make again replacing send, air draft high efficiency particulate air filter is easy, safety.
But, although above-mentioned Biohazard Safety Equipment of the prior art has air-exhausting function, but be in use procedure, it can only control according to the judgement of the duty of system and this two states of off working state, and all can not realize judging to control in the situations such as staff's temporary transient open and close cabinet door, cause Biohazard Safety Equipment air draft work incessantly, cause the waste of electric power resource, be also unfavorable for energy-conserving and environment-protective.
Existing Biohazard Safety Equipment all needs to configure uviol lamp, and it not only has certain illumination functions, and main still have biocidal efficacies, contributes to keeping experimental situation.As Chinese utility model patent description (Authorization Notice No.: CN2684924Y) discloses a kind of Biohazard Safety Equipment with flow-control and recirculating air filter service life supervision.It is made up of bottom bracket, casing, working chamber, glass door, front panel, blower fan, discharge filter, door motor, recirculating air filter, lighting source, uviol lamp, liquid feed channel interface, detachable prefilter, floor push interface, air flow channel, vacuum table, regulator, it is characterized in that, cast out vacuum table, regulator, the inwall of air flow channel is equipped with sensor, be equipped with control panel in front panel lower end, after control panel, be equipped with wiring board and corresponding software.
But the uviol lamp of existing Biohazard Safety Equipment all needs to carry out switch by manual operation, seldom there is the actual service condition according to Biohazard Safety Equipment, particularly automatically control according to the situation of the opening and closing of cabinet door.
Method many employings uviol lamp of automatic control adopts contact travel switch to control in opening and controlling more or single-point magnetic switch controls to open, in practical operation, often because travel switch uses for a long time, fatigue causes loose contact, or magnetic switch position deviation is difficult to find location point etc. bad, cause and control uviol lamp unlatching or close uviol lamp extremely, unwanted time, also open uviol lamp, cause the injury to human body.Single coordinated signals uviol lamp, performance and security aspect be all difficult to realize 100% to user security.
The present invention proposes based on the problems referred to above.
Summary of the invention
The object of this invention is to provide a kind of uviol lamp controller that can be carried out the Biohazard Safety Equipment of coordinated signals uviol lamp opening and closing by the opening and closing of cabinet door.
Another object of the present invention be to provide a kind of can the control method of above-mentioned controller.
In order to achieve the above object, the technical solution used in the present invention is: a kind of Biohazard Safety Equipment uviol lamp linkage controller, is characterized in that: comprise be arranged on cabinet door and the magnetic switch of at least two on slide rail and be connected with magnetic switch by the control circuit of described at least two magnetic switch coordinated signals uviol lamps opening and closing.
Described control circuit comprises the relay connecting ultraviolet violet light switch, and the single-chip microcomputer be connected with relay, described single-chip microcomputer is connected with an AND circuit, and two inputs of described AND circuit connect the first magnetic switch and the 4th magnetic switch respectively.
Described magnetic switch comprises the 4th magnetic switch being arranged on cabinet door least significant end and the first magnetic switch being arranged on cabinet reveal face, and arbitrary magnetic switch comprises permanent magnet and tongue tube two parts.
The tongue tube of described 4th magnetic switch is arranged on the horizontal slide rail of cabinet door frame, and the permanent magnet of described 4th magnetic switch is arranged on the lower limb of the cabinet door position corresponding with tongue tube.
The tongue tube of described first magnetic switch is arranged on the upright slide rail of cabinet door frame, and the permanent magnet of described first magnetic switch is arranged on the vertical lateral edges of the cabinet door position corresponding with tongue tube.
When cabinet door declines, when the tongue tube of described 4th magnetic switch is corresponding with permanent magnet, the 4th magnetic switch sends signal to AND circuit; When the tongue tube of described first magnetic switch is corresponding with permanent magnet, the first magnetic switch sends a signal to AND circuit.
When described AND circuit receives the signal of the 4th magnetic switch and the transmission of the first magnetic switch simultaneously, send signal, the conducting of Single-chip Controlling relay to single-chip microcomputer, the ultraviolet violet light switch be connected with relay closes, and uviol lamp lights.
When described AND circuit does not receive one or two in the signal of the 4th magnetic switch and the transmission of the first magnetic switch, the signal that single-chip microcomputer sending filter disconnects, the ultraviolet violet light switch be connected with relay disconnects, and uviol lamp extinguishes.
Described magnetic switch also comprises the 3rd magnetic switch being positioned at cabinet door upper end second magnetic switch and vertical side arbitrary height combining and be arranged on cabinet door and slide rail.
A kind of control method of Biohazard Safety Equipment uviol lamp linkage controller, described be arranged at least two magnetic switch on cabinet door and doorframe in corresponding tongue tube and permanent magnet position to correspondence time signal is sent to the AND circuit be connected, when AND circuit receives the signal of all magnetic switch transmission, phase single-chip microcomputer sends signal, Single-chip Controlling is connected with ultraviolet violet light switch relay conducting, and uviol lamp is opened; If AND circuit does not receive the signal that arbitrary magnetic switch sends, then the relay that Single-chip Controlling is connected with ultraviolet violet light switch disconnects, and uviol lamp is closed.
Beneficial effect of the present invention is as follows:
Uviol lamp linkage controller of the present invention, adopt or polymarker method at 2, more increase the completely closed test point of Biohazard Safety Equipment door, like this under the condition of 2 or polymarker, whether detecting box door closes completely, uviol lamp is opened when cabinet door is closed completely, like this, can avoid in practical operation that often fatigue causes loose contact because travel switch uses for a long time, or magnetic switch position deviation is difficult to find location point etc. bad, cause and control uviol lamp unlatching or close uviol lamp extremely, also uviol lamp is opened unwanted time, cause the injury to human body.Single coordinated signals uviol lamp, performance and security aspect be all difficult to realize 100% to user security.
Accompanying drawing explanation
Fig. 1: the control circuit of the uviol lamp coordinated signals of Biohazard Safety Equipment in the present invention
Detailed description of the invention
Be described in detail below in conjunction with the uviol lamp controller of accompanying drawing to a kind of Biohazard Safety Equipment of the present invention:
A kind of Biohazard Safety Equipment uviol lamp linkage controller of the present invention, comprise be arranged on cabinet door and the magnetic switch of at least two on slide rail and be connected with magnetic switch by the control circuit of described at least two magnetic switch coordinated signals uviol lamps opening and closing.As shown in Figure 1, control circuit comprises the relay connecting ultraviolet violet light switch, and the single-chip microcomputer be connected with relay, single-chip microcomputer is connected with an AND circuit, and two inputs of AND circuit connect the first magnetic switch and the 4th magnetic switch respectively.When AND circuit and input signal are all 1, circuit just conducting, signal transmission is given next circuit by AND circuit output signal, if having a signal to be 0 in input signal like this, then AND circuit does not output signal.
Air line distance between magnetic switch will exceed the operating distance of magnetic switch, i.e. the tongue tube of magnetic switch and the distance of reaction of permanent magnet, can not affect the judgement to cabinet door closure state like this.
Magnetic switch comprises the 4th magnetic switch being arranged on cabinet door least significant end and the first magnetic switch being arranged on cabinet reveal face, and arbitrary magnetic switch comprises permanent magnet and tongue tube two parts.The tongue tube of the 4th magnetic switch is arranged on the horizontal slide rail of cabinet door frame, and the permanent magnet of described 4th magnetic switch is arranged on the lower limb of the cabinet door position corresponding with tongue tube.The tongue tube of the first magnetic switch is arranged on the upright slide rail of cabinet door frame, and the permanent magnet of described first magnetic switch is arranged on the vertical lateral edges of the cabinet door position corresponding with tongue tube.
When cabinet door declines, when the tongue tube of the 4th magnetic switch is corresponding with permanent magnet, the 4th magnetic switch sends signal to AND circuit; When the tongue tube of the first magnetic switch is corresponding with permanent magnet, the first magnetic switch sends a signal to AND circuit.When AND circuit receives the signal of the 4th magnetic switch and the transmission of the first magnetic switch simultaneously, send signal, the conducting of Single-chip Controlling relay to single-chip microcomputer, the ultraviolet violet light switch be connected with relay closes, and uviol lamp lights.When AND circuit does not receive one or two in the signal of the 4th magnetic switch and the transmission of the first magnetic switch, the signal that single-chip microcomputer sending filter disconnects, the ultraviolet violet light switch be connected with relay disconnects, and uviol lamp extinguishes.
The number of magnetic switch can be increased to four, except the first magnetic switch and the 4th magnetic switch, also comprise the 3rd magnetic switch being positioned at cabinet door upper end second magnetic switch and vertical side arbitrary height combining and be arranged on cabinet door and slide rail.Second magnetic switch is the state that detecting box door is opened completely, and the 3rd magnetic switch is the effect of a reinforcement mark to the first magnetic switch.
In the circuit of Biohazard Safety Equipment, the switch of uviol lamp is connected with a relay, and when relay conducting, ultraviolet violet light switch closes, and uviol lamp power supply is connected, and uviol lamp is bright, carries out sterilization operation.Relay is connected with a single-chip microcomputer, and the output pin of single-chip microcomputer is connected on the control circuit of relay, is carried out the opening and closing of control relay by the output signal of single-chip microcomputer.The input pin place of single-chip microcomputer connects useful AND circuit, is provided with the resistance of 2K Ω between single-chip microcomputer and AND circuit, the signal of such control inputs single-chip microcomputer, makes single-chip microcomputer can not be excessive and affect service life because of the electric current in circuit.The input of AND circuit connects magnetic switch, the principle of magnetic switch to contact or apart from just having the circuit that an output signal is sent to connection time close when permanent magnet and the tongue tube of magnetic switch detects, like this when cabinet door declines, the tongue tube arranged that matches contacts with permanent magnet or detects close, can send a signal A to AND circuit by magnetic switch.
When signal A1 and A4 that the first magnetic switch and the 4th magnetic switch send is 1, namely the first magnetic switch and the 4th magnetic switch all have output signal, at this moment cabinet door is closed completely, AND circuit just has output signal value, output signal is passed in single-chip microcomputer, the conducting of Single-chip Controlling relay, closed by the power switch of uviol lamp, uviol lamp lights.
If any one or two in magnetic switch do not send signal to AND circuit, then single-chip microcomputer is not when receiving the signal that AND circuit sends, can not control relay conducting, and namely uviol lamp power supply disconnects, and like this, uviol lamp is in closed condition.
Controller of the present invention can also adopt four point positioning labelling method or multipoint positioning labelling method, in the relative cabinet reveal face of the first magnetic switch, the 3rd magnetic switch is installed, like this, gauge point can be increased, when avoiding cabinet door to tilt to stay apertured, uviol lamp is opened, and affects the life security of operator.
Arrange second magnetic switch at the top of cabinet door, this magnetic switch is that situation about opening completely at cabinet door issues the number of delivering letters.
A kind of control method of Biohazard Safety Equipment uviol lamp linkage controller, be arranged at least two magnetic switch on cabinet door and doorframe in corresponding tongue tube and permanent magnet position to correspondence time signal is sent to the AND circuit be connected, when AND circuit receives the signal of all magnetic switch transmission, phase single-chip microcomputer sends signal, Single-chip Controlling is connected with ultraviolet violet light switch relay conducting, and uviol lamp is opened; If AND circuit does not receive the signal that arbitrary magnetic switch sends, then the relay that Single-chip Controlling is connected with ultraviolet violet light switch disconnects, and uviol lamp is closed.
Uviol lamp linkage controller of the present invention, adopt or polymarker method at 2, more increase the completely closed test point of Biohazard Safety Equipment door, like this under the condition of 2 or polymarker, whether detecting box door closes completely, uviol lamp is opened when cabinet door is closed completely, like this, can avoid in practical operation that often fatigue causes loose contact because travel switch uses for a long time, or magnetic switch position deviation is difficult to find location point etc. bad, cause and control uviol lamp unlatching or close uviol lamp extremely, also uviol lamp is opened unwanted time, cause the injury to human body.Single coordinated signals uviol lamp, performance and security aspect be all difficult to realize 100% to user security.
Embodiment in above-described embodiment is only be described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite not departing from design philosophy of the present invention; the various changes and modifications that in this area, professional and technical personnel makes technical scheme of the present invention, all belong to protection scope of the present invention.
Claims (9)
1. a Biohazard Safety Equipment uviol lamp linkage controller, it is characterized in that: comprise the magnetic switch that at least two spacing be arranged on cabinet door and slide rail are greater than operating distance, and be connected with magnetic switch by the control circuit of described at least two magnetic switch coordinated signals uviol lamps opening and closing.
2. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 1, it is characterized in that: described control circuit comprises the relay connecting ultraviolet violet light switch, the single-chip microcomputer be connected with relay, the input of described single-chip microcomputer is connected with the output of an AND circuit, at least two magnetic switch described in the input of described AND circuit connects respectively.
3. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 2, it is characterized in that: described magnetic switch at least comprises the 4th magnetic switch being arranged on cabinet door lowermost end and the first magnetic switch being arranged on cabinet reveal face, and described magnetic switch comprises permanent magnet and tongue tube two parts.
4. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 3, it is characterized in that: the tongue tube of described 4th magnetic switch is arranged on the horizontal slide rail of cabinet door frame, the permanent magnet of described 4th magnetic switch is arranged on the lower limb of the cabinet door position corresponding with tongue tube; The tongue tube of described first magnetic switch is arranged on the upright slide rail of cabinet door frame, and the permanent magnet of described first magnetic switch is arranged on the vertical lateral edges of the cabinet door position corresponding with tongue tube.
5. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 4, is characterized in that: when cabinet door declines, when the tongue tube of described 4th magnetic switch is corresponding with permanent magnet, the 4th magnetic switch sends signal to AND circuit; When the tongue tube of described first magnetic switch is corresponding with permanent magnet, the first magnetic switch sends a signal to AND circuit.
6. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 3, is characterized in that: described magnetic switch also comprises the 3rd magnetic switch being positioned at cabinet door upper end second magnetic switch and vertical side arbitrary height combining and be arranged on cabinet door and slide rail.
7. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 5, it is characterized in that: when described AND circuit receives the signal of magnetic switch transmission simultaneously, signal is sent to single-chip microcomputer, the conducting of Single-chip Controlling relay, the ultraviolet violet light switch be connected with relay closes, and uviol lamp lights.
8. a kind of Biohazard Safety Equipment uviol lamp linkage controller according to claim 5, it is characterized in that: when described AND circuit does not receive one or two or three in magnetic switch or four signals, the signal that single-chip microcomputer sending filter disconnects, the ultraviolet violet light switch be connected with relay disconnects, and uviol lamp extinguishes.
9. as the control method of a kind of Biohazard Safety Equipment uviol lamp linkage controller in claim 1-8, it is characterized in that: described in be arranged at least two magnetic switch on cabinet door and doorframe in corresponding tongue tube and permanent magnet position to correspondence time signal is sent to the AND circuit be connected, when AND circuit receives the signal of all magnetic switch transmission, phase single-chip microcomputer sends signal, Single-chip Controlling is connected with ultraviolet violet light switch relay conducting, and uviol lamp is opened; If AND circuit does not receive the signal that any one or two or 3 or 4 magnetic switch send, then the relay that Single-chip Controlling is connected with ultraviolet violet light switch disconnects, uviol lamp closedown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353539.0A CN104368403B (en) | 2013-08-14 | 2013-08-14 | A kind of Biohazard Safety Equipment ultraviolet lamp linkage controller and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353539.0A CN104368403B (en) | 2013-08-14 | 2013-08-14 | A kind of Biohazard Safety Equipment ultraviolet lamp linkage controller and its control method |
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| CN104368403A true CN104368403A (en) | 2015-02-25 |
| CN104368403B CN104368403B (en) | 2018-10-30 |
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| CN201310353539.0A Active CN104368403B (en) | 2013-08-14 | 2013-08-14 | A kind of Biohazard Safety Equipment ultraviolet lamp linkage controller and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104923320A (en) * | 2015-05-21 | 2015-09-23 | 蚌埠市瑞风净化设备工程有限责任公司 | Intelligent biological safety cabinet |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104368403B (en) | 2018-10-30 |
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Address after: 266102 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Applicant after: haier group corporation Applicant after: Qingdao Haier Bio Medical Limited by Share Ltd Address before: 266102 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Applicant before: haier group corporation Applicant before: Haier Medical and Laboratory Products Co., Ltd. |
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Effective date of registration: 20190124 Address after: 266555 Haier Industrial Park, Qingdao Economic Development Zone, Shandong Province Patentee after: Qingdao Haier Bio Medical Limited by Share Ltd Address before: 266102 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Co-patentee before: Qingdao Haier Bio Medical Limited by Share Ltd Patentee before: haier group corporation |
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