CN207446934U - A kind of vent cabinet for automatically adjusting air quantity - Google Patents
A kind of vent cabinet for automatically adjusting air quantity Download PDFInfo
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- CN207446934U CN207446934U CN201721448277.6U CN201721448277U CN207446934U CN 207446934 U CN207446934 U CN 207446934U CN 201721448277 U CN201721448277 U CN 201721448277U CN 207446934 U CN207446934 U CN 207446934U
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- cabinet
- cabinet door
- air quantity
- magnechuck
- movable contact
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Abstract
The utility model discloses a kind of vent cabinet for automatically adjusting air quantity, including cabinet, cabinet door, infrared sensor, controller, magnechuck, fan valve executor and block；The cabinet is the hollow type cavity that three face metal walls surround；The cabinet door is arranged in the unsheltered one side of the cabinet, and closing and the opening state of the cabinet are realized by moving up and down；The infrared sensor is arranged on the top of cabinet door；The controller is arranged on the cabinet, is electrically connected with the infrared sensor, the magnechuck and the fan valve executor；The magnechuck is arranged on the surface of the cabinet door, when the cabinet door moves up complete opening, the magnechuck and the cabinet door electromagnetic adsorption；The fan valve executor is arranged on the top of the cabinet；The block is arranged on the doorframe of the cabinet, and position is at 1/5th of the doorframe height.
Description
Technical field
The utility model is related to laboratory equipment more particularly to a kind of vent cabinets for automatically adjusting air quantity.
Background technology
With the development of science and technology, laboratory has been applied to more and more fields.From research teaching to quality control
System from Research Center to industrial and mining enterprises, from physics, chemistry, engineering material to life science, is all generally equipped with for experimental study
Laboratory.Laboratory is during experiment, with a large amount of harmful substances, such as gas, the production of steam, dust and suspended particulate
It is raw, serious threat is caused to the health of testing crew, at this moment vent cabinet becomes the indispensable important safety in laboratory
One of equipment.
The major function of vent cabinet is that experimenter is being done the various pernicious gases to volatilize during various reagents experiment by leading to
Wind pipeline absolutely discharges outdoor, and a safe and healthy working environment is created for experimenter.But vent cabinet is being run
During consume energy bigger, and during vent cabinet is actually used, being usually present with experimenter leaves, without and
When close vent cabinet, necessarily cause divulge information exhaust air rate waste.Therefore the waste of exhaust air rate is reduced using suitable control mode,
The energy consumption of vent cabinet in use can significantly be lowered.
Utility model content
More than solving the problems, such as, the utility model provides a kind of vent cabinet for automatically adjusting air quantity.
A kind of vent cabinet for automatically adjusting air quantity of the utility model includes cabinet, cabinet door, infrared sensor, controller, electricity
Magnetic-disc, fan valve executor and block；The cabinet is the hollow type cavity that three face metal walls surround；The cabinet door is arranged on
In the unsheltered one side of cabinet, closing and the opening state of the cabinet are realized by moving up and down；It is described infrared
Sensor is arranged on the top of cabinet door；The controller is arranged on the cabinet, with the infrared sensor, the electromagnetism
Sucker and fan valve executor electrical connection；The magnechuck is in the surface of the cabinet door, when the cabinet door is to moving up
During dynamic opening completely, the magnechuck and the cabinet door electromagnetic adsorption；The fan valve executor is arranged on the top of the cabinet
Portion；The block is arranged on the doorframe of the cabinet, and position is at 1/5th of the doorframe height.
Preferably, the controller is electromagnetic relay.
Preferably, the electromagnetic relay includes electromagnet, spring, armature, normally-closed contact, movable contact and normally opened contact；
The electromagnet is arranged on the lower section of the armature, and is electrically connected with the infrared sensor；The spring and the armature
One end connection；The movable contact is arranged on the armature compared with the other end being connected with the spring；The normally-closed contact
It is arranged on the top of the movable contact；The normally opened contact is arranged on the lower section of the movable contact；The normally-closed contact with it is described
The indirect 2V potential circuits of movable contact；The indirect 10V potential circuits of the normally opened contact and the movable contact.
Preferably, the infrared sensor uses SL650 miniature human body induction modules.
Preferably, the block is using stickup sponge.
A kind of vent cabinet for automatically adjusting air quantity of the utility model, has technique effect beneficial below：
The utility model it is a kind of automatically adjust air quantity vent cabinet by infrared sensor automatic identification experimenter from
It opens, control cabinet door is landed automatically, and air-valve is reduced to maximum while cabinet door falls behind under the 20% of maximum height, cabinet door automatically
Angle 20%, the automatic rotating speed for reducing wind turbine, reduces discharge capacity, so as to fulfill energy saving purpose.The utility model has circuit letter
Single, highly reliable, the advantages such as low cost can be good at applying in the exhaust system of ventilation, can effectively reduce personnel
Long period leaves exhaust air rate waste during vent cabinet, and then saves laboratory energy consumption.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of vent cabinet external structure schematic diagram for automatically adjusting air quantity of the utility model, including a controller.
Fig. 2 is the structure diagram of controller shown in FIG. 1.
In figure：11, cabinet；12, cabinet door；13, infrared sensor；14, controller；141, electromagnet；142, spring；143,
Armature；144, normally-closed contact；145, movable contact；146, normally opened contact；15, magnechuck；16, fan valve executor；17, block.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of vent cabinet for automatically adjusting air quantity of the utility model includes cabinet 11, cabinet door 12, infrared biography
Sensor 13, controller 14, magnechuck 15, fan valve executor 16 and block 17.The cabinet 11 surrounds for three face metal walls
Hollow type cavity；The cabinet door 12 is arranged in the 11 unsheltered one side of cabinet, by moving up and down to realize
State closing and the opening state of cabinet 11；The infrared sensor 13 is arranged on the top of cabinet door 11, and can sense human body is
It is no near the cabinet 11, the infrared sensor 13 uses SL650 miniature human body induction modules, full-automatic to sense:People
High level is then exported into its induction range, people leaves induction range, and then automatic time delay closes high level, exports low level；It is described
Controller 14 is arranged on the cabinet 11, is performed with the infrared sensor 12, the magnechuck 15 and the air-valve
Device 16 is electrically connected；The magnechuck 15 is arranged on the surface of the cabinet door 12, when the cabinet door 12 moves up completely
During opening, the magnechuck 15 and 12 electromagnetic adsorption of cabinet door；The fan valve executor 16 is arranged on the cabinet 11
Top controls the intake in the cabinet 11；The block 17 is arranged on the doorframe of the cabinet 11, and position is in institute
At state doorframe height 1/5th, block 17, which may be employed, pastes sponge, increases the frictional resistance of this position.
It please refers to Fig.2, the controller 14 is electromagnetic relay, and the electromagnetic relay includes electromagnet 141, spring
142nd, armature 143, normally-closed contact 144, movable contact 145 and normally opened contact 146；The electromagnet 141 is arranged on the armature 143
Lower section, and be electrically connected with the infrared sensor 13；The spring 142 is connected with one end of the armature 143；It is described dynamic
Contact 145 is arranged on the armature 143 compared with the other end being connected with the spring 143；The normally-closed contact 144 is arranged on
The top of the movable contact 145；The normally opened contact 146 is arranged on the lower section of the movable contact 145；The normally-closed contact 144
With the indirect 2V potential circuits of the movable contact 145；The indirect 10V voltages electricity of the normally opened contact 146 and the movable contact 145
Road.
It is explained further below：
A kind of operation principle of the vent cabinet for automatic adjustment air quantity that the embodiment of the utility model provides：
When experimenter is in the induction range of the infrared sensor 13, DE circuits both ends receive described infrared
The signal of sensor 13, output state are the high level of 3.3V so that the electromagnet 141 generates electromagnetic force, attracts the rank
Iron 143 overcomes the elastic force of the spring 142 to move down, and is contacted with the normally opened contact 146, this circuit is the magnechuck
15 provide the voltage of 10V, and the magnechuck 15 adsorbs gravity of the power more than the cabinet door 12 of the cabinet door 12, the cabinet door
12 are adsorbed, while the voltage of 10V is also provided for the fan valve executor 16 so that the air-valve of the wind valve controller 16
Angle maximum (90 °), manifold pressure is small at this time, and duct static pressure sensor sends signal so that the wind turbine of Frequency Converter Control with
Maximum power discharges the air in the cabinet 11.
When experimenter is left in the induction range of the infrared sensor 13, DE circuits receive the infrared sensing
The signal of device 13, after delay is set (5-500S), output state is the low level of 0V so that the electromagnet 141 generates
Electromagnetic force disappear, the elastic force of the spring 142 promotes the armature 143 to move up, contacted with the normally-closed contact 144,
This circuit provides the voltage of 2V for the magnechuck 15, and the adsorption capacity of the magnechuck 15 is less than the weight of the cabinet door 12
Power, the cabinet door 12 are begun to decline, and due to the effect of 17 frictional force of block, the cabinet door 12 is in the position of the block 17
Stop declining, while the voltage of 2V is also provided for the fan valve executor 16 so that the angle of the air-valve of the wind valve controller 16
Degree becomes original 1/5th, and manifold pressure becomes larger at this time, and duct static pressure sensor sends a signal to frequency converter, frequency converter
The power of the wind turbine of control also becomes smaller.
A kind of vent cabinet for automatic adjustment air quantity that the embodiment of the utility model provides has technology effect beneficial below
Fruit：
The utility model it is a kind of automatically adjust air quantity vent cabinet by infrared sensor automatic identification experimenter from
It opens, control cabinet door is landed automatically, and air-valve is reduced to maximum while cabinet door falls behind under the 20% of maximum height, cabinet door automatically
Angle 20%, the automatic rotating speed for reducing wind turbine, reduces discharge capacity, so as to fulfill energy saving purpose.The utility model has circuit letter
Single, highly reliable, the advantages such as low cost can be good at applying in the exhaust system of ventilation, can effectively reduce personnel
Long period leaves exhaust air rate waste during vent cabinet, and then saves laboratory energy consumption.
The only preferred embodiment of the utility model, is not intended to limit the utility model, all in the utility model
Spirit and principle within, any modifications, equivalent replacements and improvements are made should be included in the protection model of the utility model
Within enclosing.
Claims (5)
1. a kind of vent cabinet for automatically adjusting air quantity, it is characterised in that：It include cabinet, cabinet door, infrared sensor, controller,
Magnechuck, fan valve executor and block；The cabinet is the hollow type cavity that three face metal walls surround；The cabinet door is set
In the unsheltered one side of the cabinet, closing and the opening state of the cabinet are realized by moving up and down；It is described red
Outer sensor is arranged on the top of cabinet door；The controller is arranged on the cabinet, with the infrared sensor, the electricity
Magnetic-disc and fan valve executor electrical connection；The magnechuck is arranged on the surface of the cabinet door, when the cabinet door
When moving up complete opening, the magnechuck and the cabinet door electromagnetic adsorption；The fan valve executor is arranged on the cabinet
The top of body；The block is arranged on the doorframe of the cabinet, and position is at 1/5th of the doorframe height.
2. a kind of vent cabinet for automatically adjusting air quantity as described in claim 1, it is characterised in that：The controller for electromagnetism after
Electric appliance.
3. a kind of vent cabinet for automatically adjusting air quantity as claimed in claim 2, it is characterised in that：The electromagnetic relay includes
Electromagnet, spring, armature, normally-closed contact, movable contact and normally opened contact；The electromagnet is arranged on the lower section of the armature, and
It is electrically connected with the infrared sensor；The spring is connected with one end of the armature；The movable contact is arranged on the rank
Iron phase is for the other end that is connected with the spring；The normally-closed contact is arranged on the top of the movable contact；It is described normally opened tactile
Point is arranged on the lower section of the movable contact；The indirect 2V potential circuits of the normally-closed contact and the movable contact；It is described normally opened tactile
The indirect 10V potential circuits of point and the movable contact.
4. such as a kind of vent cabinet of automatic adjustment air quantity of claim 1-3 any one of them, it is characterised in that：The infrared biography
Sensor uses SL650 miniature human body induction modules.
5. such as a kind of vent cabinet of automatic adjustment air quantity of claim 1-3 any one of them, it is characterised in that：The block is adopted
With stickup sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448277.6U CN207446934U (en) | 2017-11-02 | 2017-11-02 | A kind of vent cabinet for automatically adjusting air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448277.6U CN207446934U (en) | 2017-11-02 | 2017-11-02 | A kind of vent cabinet for automatically adjusting air quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207446934U true CN207446934U (en) | 2018-06-05 |
Family
ID=62253564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448277.6U Active CN207446934U (en) | 2017-11-02 | 2017-11-02 | A kind of vent cabinet for automatically adjusting air quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207446934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201685A (en) * | 2018-08-24 | 2019-01-15 | 苏州友裕精密科技有限公司 | A kind of vent cabinet can detecte air quantity |
| CN111632987A (en) * | 2020-06-20 | 2020-09-08 | 安徽宝图实验室设备有限公司 | Table type ventilation cabinet |
-
2017
- 2017-11-02 CN CN201721448277.6U patent/CN207446934U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201685A (en) * | 2018-08-24 | 2019-01-15 | 苏州友裕精密科技有限公司 | A kind of vent cabinet can detecte air quantity |
| CN111632987A (en) * | 2020-06-20 | 2020-09-08 | 安徽宝图实验室设备有限公司 | Table type ventilation cabinet |
| CN111632987B (en) * | 2020-06-20 | 2022-05-24 | 安徽宝图实验室设备有限公司 | Table type ventilation cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 Chuangke Building 226-227, No. 72-6 Huanguannan Road, Xintian Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Jinhua Thai laboratory construction Limited by Share Ltd Address before: 518000 Guanglan Street, Longhua New District, Shenzhen City, Guangdong Province Patentee before: Jinhua Shenzhen Tai laboratory equipment Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 1002, building E4, TCL Science Park, 1001 Zhongshan Garden Road, Shuguang community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Jinhuatai Laboratory Technology Development Co.,Ltd. Address before: 518000 Chuangke Building 226-227, No. 72-6 Huanguannan Road, Xintian Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KINWATAI LABORATORY CONSTRUCTION Co.,Ltd. |