CN201788378U - Non-contact controller for laboratory equipment - Google Patents
Non-contact controller for laboratory equipment Download PDFInfo
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- CN201788378U CN201788378U CN2010202638654U CN201020263865U CN201788378U CN 201788378 U CN201788378 U CN 201788378U CN 2010202638654 U CN2010202638654 U CN 2010202638654U CN 201020263865 U CN201020263865 U CN 201020263865U CN 201788378 U CN201788378 U CN 201788378U
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- controller
- laboratory equipment
- contact type
- wiring board
- type laboratory
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Abstract
The utility model discloses a non-contact controller for laboratory equipment, which comprises a controller casing and a circuit board internally mounted in the controller casing, wherein and a non-contact induction key is arranged on the top layer of the circuit board; a light guide plate and a transparent material layer are respectively laid on the top surface of the circuit board in sequence; and the transparent material layer is sealed with the controller casing with adhesive. The controller for the laboratory equipment adopts the non-contact induction design, and the internal circuits and elements for the controller are in a closed isolated environment, so that the corrosive gas or the dissolved gas in the laboratory cannot be in contact with the circuit board and the element inside the controller, the security and the durability of the controller are further enhanced to a great extent, the failure rate of the laboratory equipment is reduced, and the personal safety of the laboratory personnel is also powerful guaranteed.
Description
Technical field
The utility model belongs to the opertaing device technical field, specifically, relates to a kind of non-contact type laboratory equipment controller that designs at laboratory environment.
Background technology
For present laboratory equipment, its controller all is to adopt the contact mechanical key to receive user's trigger action.Because some corrosivity or the experiment of deliquescent gaseousness need be carried out in some laboratory, when the laboratory controller after using a period of time under this environment, will be subjected to a certain degree corrosion and accelerated deterioration, thereby cause controller control malfunctioning and cause the inefficacy of experimental facilities or misoperation takes place, even threaten the personal safety of lab assistant, breadboard property is suffered a loss.
With the fume hood controller is that example describes.Vent cabinet is the visual plant that dangerous big, volatile experiment, strong acid and strong base experiment are carried out in inside, present most laboratory, so the quality of its controller is particularly important to laboratory safety.And traditional fume hood controller all is to use the mechanical type button, and the controller main frame is all isolated and fire-proof and explosion-proof design.Sort controller owing to the corrosive chemical that can touch inevitably in the laboratory environment, therefore can cause controller malfunctioning in the long course of work, and perhaps because of electric spark produces blast, this has buried hidden danger for breadboard safe operation.
Based on this, how improving the security of laboratory controller and durability and being needs a subject matter solving in present laboratory equipment design and the production run.
The utility model content
The purpose of this utility model is to provide a kind of touchless laboratory equipment controller, to reduce the erosion of internal corrosion gas in laboratory to controller internal circuit board and components and parts, improves the security of controller operation, prolongs its serviceable life.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of non-contact type laboratory equipment controller comprises controller housing and the wiring board that is built in controller housing; Top layer at described wiring board is provided with the non-contact inductive button, and the end face of wiring board is equipped with light guide plate and transparent material layer successively, adopts adhesive seal between described transparent material layer and the controller housing.
Preferably, described non-contact inductive button is capacitive induced key, Magnetic Induction button or optoelectronic induction button.
Further, also be provided with the disconnector that is used to connect or cut off the externally fed power supply on described wiring board, described disconnector is connected between the power input terminal and power output terminal of controller.
Preferably, described disconnector is non-mechanical switches elements such as photoelectrical coupler, solid-state relay or controllable silicon.
Further again, described wiring board adopts insulation leaded light such as epoxy resin or transparent silica gel and erosion-resisting material to seal.
Further again, adopt inert binders such as silica gel or epoxy adhesive to seal between described transparent material layer and the controller housing.
Further, described light guide plate preferably adopts acrylic material to make; Described controller housing preferably adopts polypropylene or epoxide resin material to make.
Compared with prior art, advantage of the present utility model and good effect are: laboratory equipment controller of the present utility model is by adopting non-contact type induction design, internal circuit, the components and parts of controller are in the environment of an airtight isolation, thereby make circuit board and the components and parts that corrosivity in the laboratory or dissolved gas can't touch controller inside, and then the security and the durability of controller have been improved to a great extent, make the failure rate of laboratory equipment be minimized, the personal safety of lab assistant has also obtained powerful guarantee.
After reading the detailed description of the utility model embodiment in conjunction with the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of a kind of embodiment of the non-contact type laboratory equipment controller that proposes of the utility model;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of non-contact inductive key circuit on the wiring board among Fig. 1;
Fig. 3 is the circuit theory diagrams of a kind of embodiment of power access circuit on the wiring board.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
Embodiment one, and referring to shown in Figure 1, the laboratory equipment controller of present embodiment mainly partly is made up of controller housing 11, wiring board 12, light guide plate 13 and transparent material layer 14 etc.Wherein, wiring board 12 is built in the controller housing 11, lays light guide plate 13 and transparent material layer 14 on it successively.For corrosivity or dissolved gas in the isolated external environment condition invade controller inside, its inner wiring board 12 is corroded or decompose, present embodiment at first adopts bonding agent that transparent material layer 14 and controller housing 11 are carried out encapsulation process, and described bonding agent preferably adopts the inert binder of materials such as erosion-resisting silica gel or epoxy resin; Secondly, for the button that is used to receive the lab assistant operational order on the controller, the preferred alternative traditional mechanical type button of contactless induced key that adopts carries out circuit design, be installed in the top layer of wiring board 12, utilize light guide plate 13 and transparent material layer 14 to realize effective isolation of button and external environment.
In the present embodiment, described non-contact inductive button can adopt the capacitive induced key that utilizes body capacitance to change the perception pressing operation or based on the Magnetic Induction button of magnetosensitive Hall element, perhaps the optoelectronic induction button carries out circuit design.
Touch induction buttons with capacitive is that example describes, referring to shown in Figure 2.Suppose that needing to be provided with 4 induced keys on the controller receives user's operation, 4 touch key-press terminal IP1～IP4 of welding and a capacitive induction chip U1 on wiring board 12.4 touch key-press terminal IP1～IP4 are connected one to one by 4 input end CIN1～CIN4 of resistance R 1～R4 and capacitive induction chip U1 respectively, and separately by one tunnel capacitor C, 3～C6 ground connection, to realize the detection of capacitive induction chip U1 to 4 touch key-press terminal IP1～IP4.4 output terminal COUT1～COUT4 of capacitive induction chip U1 connect one to one with the negative electrode of 4 LED 1～LED4 respectively, and the anode of LED 1～LED4 connects direct supply VCC1.4 LED 1～LED4 are corresponding with 4 touch key-presss, are used to indicate the function of each button.When the user with finger during near some touch key-press terminals, such as near touch key-press terminal IP1 the time, then the input end CI N1 of capacitive induction chip U1 detects changes in capacitance, control its output terminal COUT1 and be changed to low level, thereby make LED 1 luminous indication, response user operation.
By adopting the induced key design of on-mechanical formula, can realize the fully isolation of laboratory equipment, thereby thoroughly solve the adverse effect of laboratory environment controller internal circuit board and components and parts with controller and laboratory external environment condition.
In addition, for the on-off element that is used to connect or cut off the externally fed power supply that is provided with on the wiring board 12, present embodiment preferably adopts the disconnector of no mechanical control structure to be connected between the power input terminal and power output terminal of controller, such as non-mechanical switches elements such as photoelectrical coupler, solid-state relay or controllable silicons.Present embodiment is that example is specifically described with solid-state relay J1, referring to shown in Figure 3.The normally opened contact of solid-state relay J1 is connected between the power input terminal Vin and power output terminal Vout of controller, the coil one end ground connection of solid-state relay J1, the other end connects the I/O mouth of CPU in the controller.When needs are connected external power source, CPU is solid-state relay J1 power supply by its I/O mouth, make its normally opened contact closure, line between energized input terminal Vin and the power output terminal Vout, making the externally fed power supply can be electricity consumption electric in the laboratory equipment by power output terminal Vout.Because therefore the inner no mechanical control structure of controller, can prolong the serviceable life of controller greatly.
Whole insulation leaded light such as epoxy resin or transparent silica gel and the erosion-resisting material of adopting of wiring board 12 carried out primary concreting, realize sealing, thereby can realize the thorough isolation of wiring board 12 and external environment, stop the generation of electric spark, realize anticorrosive, fire-proof and explosion-proof function, its practicality also strengthens greatly.
In the present embodiment, light guide plate 13 can select for use finished product optical grade acrylic material to make, so that the line source that wiring board 12 is sent changes area source into, is easy to control cost.Controller housing 11 should select for use inert materials such as polypropylene or epoxy resin to make, to increase the adaptability of controller to varying environment.Can the printing mark picture at the back side of transparent material layer 14, such as the picture and the words identification of each function button, with the position and the function of clearly indicating each induced key, user friendly operation.
Adopt the controller of above-mentioned technological means design, can adapt to any laboratory environment, be applied in the laboratory infrastructure such as baking oven, vent cabinet, central air conditioner, can reach and reduce the laboratory equipment failure rate, prolong the laboratory equipment purpose of design in serviceable life.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (8)
1. a non-contact type laboratory equipment controller comprises controller housing and the wiring board that is built in controller housing; It is characterized in that: the top layer at described wiring board is provided with the non-contact inductive button, and the end face of wiring board is equipped with light guide plate and transparent material layer successively, adopts adhesive seal between described transparent material layer and the controller housing.
2. non-contact type laboratory equipment controller according to claim 1 is characterized in that: described non-contact inductive button is capacitive induced key, Magnetic Induction button or optoelectronic induction button.
3. non-contact type laboratory equipment controller according to claim 1, it is characterized in that: described wiring board is provided with the disconnector that is used to connect or cut off the externally fed power supply, and described disconnector is connected between the power input terminal and power output terminal of controller.
4. non-contact type laboratory equipment controller according to claim 3 is characterized in that: described disconnector is photoelectrical coupler, solid-state relay or controllable silicon.
5. according to each described non-contact type laboratory equipment controller in the claim 1 to 4, it is characterized in that: described wiring board adopts epoxy resin or transparent silica gel sealing.
6. non-contact type laboratory equipment controller according to claim 1 is characterized in that: described bonding agent is silica gel or epoxy adhesive.
7. non-contact type laboratory equipment controller according to claim 1 is characterized in that: described light guide plate adopts acrylic material to make.
8. non-contact type laboratory equipment controller according to claim 1 is characterized in that: described controller housing adopts polypropylene or epoxide resin material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202638654U CN201788378U (en) | 2010-07-15 | 2010-07-15 | Non-contact controller for laboratory equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202638654U CN201788378U (en) | 2010-07-15 | 2010-07-15 | Non-contact controller for laboratory equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201788378U true CN201788378U (en) | 2011-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202638654U Expired - Fee Related CN201788378U (en) | 2010-07-15 | 2010-07-15 | Non-contact controller for laboratory equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201788378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389100A (en) * | 2015-10-16 | 2016-03-09 | 苏州佳世达电通有限公司 | Display apparatus and operation method therefor |
-
2010
- 2010-07-15 CN CN2010202638654U patent/CN201788378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105389100A (en) * | 2015-10-16 | 2016-03-09 | 苏州佳世达电通有限公司 | Display apparatus and operation method therefor |
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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: 20110406 Termination date: 20140715 |
|
| EXPY | Termination of patent right or utility model |