CN205679300U - A kind of liquid level detecting device - Google Patents
A kind of liquid level detecting device Download PDFInfo
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- CN205679300U CN205679300U CN201620600717.4U CN201620600717U CN205679300U CN 205679300 U CN205679300 U CN 205679300U CN 201620600717 U CN201620600717 U CN 201620600717U CN 205679300 U CN205679300 U CN 205679300U
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- liquid level
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- liquidometer
- liquid
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Abstract
The utility model discloses a kind of liquid level detecting device, including adding bucket and liquidometer assembly, liquidometer assembly is made up of a liquidometer or branched length liquidometer not etc.；Liquidometer includes top connection, locating ring, pipe, lower contact and liquid-level switch；Top connection is fixed on by locating ring on the cover plate adding bucket, and the upper end of pipe is connected with top connection, and the lower end of pipe is connected with lower contact, and lower contact is connected with liquid-level switch；The longitudinal centre line of liquidometer is parallel with the longitudinal centre line adding bucket；Add bucket and be provided with feed tube, overflow pipe and air-vent, add and outside the bucket wall of bucket, be provided with liquid level observation pipe, liquid level observation pipe and the inner space adding bucket.This utility model simple in construction, combination is convenient, is not affected by tube wall liquid residue, it is possible to correctly detect liquid level, timely fluid infusion, is conducive to improving electrical property and the presentation quality of silicon chip.
Description
Technical field
This utility model relates to solar energy cell wet-method process field, particularly relates to a kind of liquid level detecting device.
Background technology
Solaode is also called " solar chip " or " light cell ", is a kind of photoelectricity utilizing the sunlight direct generation of electricity
Wafer.As long as it is satisfied the light of certain illumination conditions and shines, moment is with regard to exportable voltage and is having the situation in loop
Lower generation electric current.Physically it is referred to as photovoltaic, is called for short photovoltaic.Along with problems such as global energy shortage and environmental pollutions
Becoming increasingly conspicuous, the exploitation of regenerative resource are increasingly subject to the attention of people, solar energy power generating because of its cleaning, safety,
Convenient, the feature such as efficiently, it has also become countries in the world common concern and the new industry given priority to.
Developing the most ripe solaode at present is silicon solar cell, manufactures the conventional method of silicon solar cell
It is: first p-type clean for surface or N-type silicon chip are first passed around making herbs into wool operation and forms suede structure；Secondly at silicon chip surface
Diffusion, forms the emitter stage of N+ or P+, removes the diffusion layer at silicon chip side and the back side through wet etching；Then at it
Front surface forms one layer of SiN thin film with antireflective function again；Finally make metal electrode respectively at the positive back side of silicon chip, pass through
Sintering process forms crystal silicon solar batteries.
Wherein, produce foreign matter of phosphor during diffusion or boron, phosphorus or boron can inevitably diffuse to silicon chip side and the back side,
Ultimately result in short circuit.Therefore, it is necessary to the doped silicon of silicon chip of solar cell side and the back side is performed etching, to remove silicon chip side
Face and the diffusion layer at the back side.Diffusion also can form phosphorus silicon or Pyrex on diffusion layer surface simultaneously, affects battery efficiency,
Therefore it is also required to remove.
Wet etching typically uses the mixed liquor of Fluohydric acid., nitric acid and sulphuric acid to remove phosphorus silicon or the borosilicate on each surface of silicon chip
Glass and remove the diffusion layer at battery side and the back side.In the production process of wet etching silicon chip, due to liquid level mistake
High or too low, it is easy to occur that silicon chip entirety is crossed and carve or carve obstructed problem, the electrical property of silicon chip is affected very big, the most also can
Affect the outward appearance of silicon chip, therefore, it is necessary to the liquid level in etching groove is controlled by.
In current etching groove, liquid level detection generally uses photoelectric liquid level gauge, and photoelectric liquid level gauge carries out the master of Level Detection
Wanting parts is photoelectric liquid-level switch.Photoelectric liquid-level switch uses infra-red detection, utilizes refraction and the principle of reflection of light, light
Generation is reflected or refraction effect by the separating surface two kinds of different mediums.Then fluid to be measured and light when fluid to be measured is in a high position
Electric switch forms a kind of separating surface, and when fluid to be measured is in low level, then air and photoswitch form another kind of separating surface, this
The intensity of reflected light that two kinds of separating surfaces make photoelectric liquid-level switch interior lights receiving crystal be received is different, i.e. corresponding two kinds different
On off state.
In actual production process, the tube wall of the liquid level observation pipe of photoelectric liquid level gauge easily has liquid residue, cause detection
To liquid level be not inconsistent with actual liquid level, cause error detection, fluid infusion not in time, thus affects normal production work.
Utility model content
In order to overcome the defect of above-mentioned prior art, this utility model provides a kind of liquid level detecting device, described
Device includes adding bucket and liquidometer assembly, and described liquidometer assembly is by a liquidometer or branched length liquidometer structure not etc.
Become, 1～4 liquidometer of general employing.Time described liquidometer assembly includes branched liquidometer, with the use of each liquidometer
Length is different, and other structures are the most identical.
Described liquidometer includes top connection, locating ring, pipe, lower contact and liquid-level switch；
Described top connection is fixed on the cover plate of described interpolation bucket by described locating ring, and the upper end of described pipe is with described
Top connection connects, and the lower end of described pipe is connected with described lower contact, and described lower contact is connected with described liquid-level switch；Described liquid
The longitudinal centre line of position meter is parallel with the longitudinal centre line of described interpolation bucket；
Described interpolation bucket is provided with feed tube, overflow pipe and air-vent, and feed tube is connected with the cover plate adding bucket, overflow pipe
Being connected with the base plate adding bucket, air-vent is arranged on the cover plate of described interpolation bucket, is provided with liquid outside the bucket wall of described interpolation bucket
Position observing tube, described liquid level observation pipe and the inner space of described interpolation bucket.
Further, the staving of described interpolation bucket is opaque.
Further, described liquid level observation pipe is transparent round tube.
Further, described liquid-level switch is the small-sized floating-ball level switch of guide rod type, including rod member be located in institute successively
State the first gear locking apparatus on rod member, ball float and second gear locking apparatus.
Further, described ball float moves up and down between first gear locking apparatus and second gear locking apparatus.
Further, the proportion of described ball float is less than the fluid density in described interpolation bucket.
Further, the mouth of pipe of described feed tube is less than described first gear locking apparatus.
Further, the mouth of pipe of described overflow pipe is higher than described second gear locking apparatus.
Compared with prior art, this utility model has the advantage that
(1) this utility model have employed small-sized floating-ball level switch, owing to float type level switch is opened with photoelectric liquid-levle
The operation principle closed is different, and this utility model is not affected by tube wall liquid residue, it is possible to correctly detect liquid level, accuracy
High.
(2) this utility model can trigger alarm, after induction apparatus detects signal, controller when reaching to detect liquid level
Can control fluid infusion immediately or stop liquid feeding, be quick on the draw, the liquid level added in bucket disclosure satisfy that silicon chip process requirements, favorably
In the electrical property and the presentation quality that improve silicon chip.
(3) this utility model is additionally provided with transparent liquid level observation pipe, liquid level observation pipe and the inner space adding bucket, base
In law of connected vessels, liquid level observation pipe, liquid level is identical with liquid level in described interpolation bucket, therefore, is receiving warning
Can pass through liquid level observation pipe during signal and observe liquid level in interpolation bucket, inspection warning is the most accurate for opportunity, and view mode is convenient, observation
Reliable results.
(4) this utility model liquidometer can be used alone, it is also possible to is applied in combination by liquidometers different for branched length
To meet more complicated Level Detection demand, its pipe length of liquidometer that length is different is different, but top connection, locating ring, under
Joint is the most identical with the specification of liquid-level switch, has simple in construction, combines convenient advantage.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The front elevational schematic of the liquid level detecting device that Fig. 1 provides for embodiment one；
The left view schematic diagram of the liquid level detecting device that Fig. 2 provides for embodiment one；
The schematic top plan view of the liquid level detecting device that Fig. 3 provides for embodiment one；
The liquid level detecting device generalized section that Fig. 4 embodiment one provides；
The front elevational schematic of the liquidometer that Fig. 5 provides for this utility model；
The front elevational schematic of the liquid level detecting device that Fig. 6 provides for embodiment two.
Wherein, 1-adds bucket, 2-liquidometer, 3-feed tube, 4-overflow pipe, 5-liquid level observation pipe, and 6-air-vent, on 11-
Joint, 12-locating ring, 13-pipe, 14-lower contact, 15-liquid-level switch, 151-first gear locking apparatus, 152-the second block fills
Put, 153-ball float.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the premise of creative work
Lower obtained every other embodiment, broadly falls into the scope of this utility model protection.
Embodiment one
As shown in Figure 1, Figure 2, a kind of liquid level detecting device shown in Fig. 3, Fig. 4 and Fig. 5, including adding bucket 1 and liquidometer
Assembly, the liquidometer 2 that liquidometer assembly is not waited by three length is constituted, three liquidometers 2 with the use of, be adjusted to different height
Degree, it is possible to detection low level, a high position and three kinds of liquid levels of High High Level.
Liquidometer 2 includes top connection 11, locating ring 12, pipe 13, lower contact 14 and liquid-level switch 15；Top connection 11 is passed through
Locating ring 12 is fixed on the cover plate adding bucket 1, and the upper end of pipe 13 is connected with top connection 11, the lower end of pipe 13 and lower contact
14 connect, and lower contact 14 is connected with liquid-level switch 15；The longitudinal centre line of liquidometer 2 is parallel with the longitudinal centre line adding bucket 1；
Adding bucket 1 and be provided with feed tube 3, overflow pipe 4 and air-vent 6, feed tube 3 is connected with the cover plate adding bucket 1, overflow
Pipe 4 is connected with the base plate adding bucket 1, and air-vent 6 is arranged on the cover plate of described interpolation bucket 1, adds and is provided with outside the bucket wall of bucket 1
Liquid level observation pipe 5, liquid level observation pipe 5 and the inner space adding bucket 1.
Liquid-level switch 15 is the small-sized floating-ball level switch of guide rod type, including rod member and the first gear that is located in successively on rod member
Locking apparatus 151, ball float 153 and second gear locking apparatus 152.
Ball float 153 moves up and down between first gear locking apparatus 151 and second gear locking apparatus 152.
The proportion of ball float 153 is less than the fluid density added in bucket 1.
The mouth of pipe of feed tube 3 is less than arbitrary first gear locking apparatus 151.
The mouth of pipe of overflow pipe 4 is higher than arbitrary second gear locking apparatus 152.
When the liquid added in bucket 1 arrives certain altitude, for detecting the ball float 153 of the liquidometer 2 of high-order liquid level from the
Two stopping devices 152 upwards float, and induction apparatus detects this signal, is informed about controller, stop fluid infusion immediately；Work as bucket
Interior liquid height declines, and the ball float of the liquidometer 2 for detecting low level liquid level moves down from first gear locking apparatus 151, now
Induction apparatus detects signal, can send a signal to controller, allows it start fluid infusion work, rises certain altitude etc. liquid level, sensing
Device detects when the small-sized ball float of the liquidometer 2 for detecting high-order liquid level floats, it should stop fluid infusion；So circulate work.
If but fluid infusion stops the most in time, liquid height continues to raise, for detecting the liquidometer 2 of High High Level liquid level
Ball float upwards floats from second gear locking apparatus 152, and induction apparatus detects this signal, will trigger alarm, now must stop at once
Only fluid infusion.
The staving adding bucket 1 is opaque, and liquid level observation pipe 5 is transparent round tube, can pass through liquid when receiving alarm signal
Position observing tube 5 is observed and is added liquid level in bucket 1, and inspection warning is the most accurate for opportunity.
Embodiment two
A kind of liquid level detecting device as shown in Figure 5 and Figure 6, including adding bucket 1 and liquidometer assembly, liquidometer group
Part is a liquidometer 2, and liquidometer 2 includes top connection 11, locating ring 12, pipe 13, lower contact 14 and liquid-level switch 15；On connect
11 are fixed on the cover plate adding bucket 1 by locating ring 12, and the upper end of pipe 13 is connected with top connection 11, the lower end of pipe 13
Being connected with lower contact 14, lower contact 14 is connected with liquid-level switch 15；In the longitudinal direction of the longitudinal centre line of liquidometer 2 and interpolation bucket 1
Heart line is parallel；
Adding bucket 1 and be provided with feed tube 3, overflow pipe 4 and air-vent 6, feed tube 3 is connected with the cover plate adding bucket 1, overflow
Pipe 4 is connected with the base plate adding bucket 1, and air-vent 6 is arranged on the cover plate of described interpolation bucket 1, adds and is provided with outside the bucket wall of bucket 1
Liquid level observation pipe 5, liquid level observation pipe 5 and the inner space adding bucket 1.
The staving adding bucket 1 is opaque.
Liquid level observation pipe 5 is transparent round tube, can be observed by liquid level observation pipe 5 when receiving alarm signal and add bucket 1
Interior liquid level, inspection warning is the most accurate for opportunity.
Liquid-level switch 15 is the small-sized floating-ball level switch of guide rod type, including rod member and the first gear that is located in successively on rod member
Locking apparatus 151, ball float 153 and second gear locking apparatus 152.
Ball float 153 moves up and down between first gear locking apparatus 151 and second gear locking apparatus 152.
The proportion of ball float 153 is less than the fluid density added in bucket 1.
The mouth of pipe of feed tube 3 is less than first gear locking apparatus 151.
The mouth of pipe of overflow pipe 4 is higher than second gear locking apparatus 152.
When the liquid added in bucket 1 inner chamber adds certain altitude to, and the ball float 153 of liquidometer 2 is from second gear locking apparatus 152
Floating up, induction apparatus detects signal, and controller can control to stop liquid feeding immediately.
Compared with prior art, this utility model has the advantage that
(1) this utility model have employed small-sized floating-ball level switch, owing to float type level switch is opened with photoelectric liquid-levle
The operation principle closed is different, and this utility model is not affected by tube wall liquid residue, it is possible to correctly detect liquid level, accuracy
High.
(2) this utility model can trigger alarm, after induction apparatus detects signal, controller when reaching to detect liquid level
Can control fluid infusion immediately or stop liquid feeding, be quick on the draw, the liquid level added in bucket disclosure satisfy that silicon chip process requirements, favorably
In the electrical property and the presentation quality that improve silicon chip.
(3) this utility model is additionally provided with transparent liquid level observation pipe, liquid level observation pipe and the inner space adding bucket, base
In law of connected vessels, liquid level observation pipe, liquid level is identical with liquid level in described interpolation bucket, therefore, is receiving warning
Can pass through liquid level observation pipe during signal and observe liquid level in interpolation bucket, inspection warning is the most accurate for opportunity, and view mode is convenient, observation
Reliable results.
(4) this utility model liquidometer can be used alone, it is also possible to is applied in combination by liquidometers different for branched length
To meet more complicated Level Detection demand, its pipe length of liquidometer that length is different is different, but top connection, locating ring, under
Joint is the most identical with the specification of liquid-level switch, has simple in construction, combines convenient advantage.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations are also considered as protection domain of the present utility model.
Claims (8)
1. a liquid level detecting device, it is characterised in that described device includes adding bucket (1) and liquidometer assembly, described
Liquidometer assembly is made up of a liquidometer (2) or branched length liquidometer (2) not etc., and described liquidometer (2) includes connecing
Head (11), locating ring (12), pipe (13), lower contact (14) and liquid-level switch (15)；
Described top connection (11) is fixed on the cover plate of described interpolation bucket (1) by described locating ring (12), described pipe (13)
Upper end be connected with described top connection (11), the lower end of described pipe (13) is connected with described lower contact (14), described lower contact
(14) it is connected with described liquid-level switch (15)；The longitudinal centre line of described liquidometer (2) and the longitudinal center of described interpolation bucket (1)
Line is parallel；
Described interpolation bucket (1) is provided with feed tube (3), overflow pipe (4) and air-vent (6), outside the bucket wall of described interpolation bucket (1)
It is provided with the inner space of liquid level observation pipe (5), described liquid level observation pipe (5) and described interpolation bucket (1).
A kind of liquid level detecting device the most according to claim 1, it is characterised in that the staving of described interpolation bucket (1)
Opaque.
A kind of liquid level detecting device the most according to claim 1, it is characterised in that described liquid level observation pipe (5) is
Transparent round tube.
A kind of liquid level detecting device the most according to claim 1, it is characterised in that described liquid-level switch (15) is for leading
The small-sized floating-ball level switch of rod-type, the first gear locking apparatus (151) including rod member and being located in successively on described rod member, ball float
And second gear locking apparatus (152) (153).
A kind of liquid level detecting device the most according to claim 4, it is characterised in that described ball float (153) is first
Move up and down between stopping device (151) and second gear locking apparatus (152).
A kind of liquid level detecting device the most according to claim 4, it is characterised in that the proportion of described ball float (153)
Less than the fluid density in described interpolation bucket (1).
A kind of liquid level detecting device the most according to claim 4, it is characterised in that the mouth of pipe of described feed tube (3)
Less than described first gear locking apparatus (151).
A kind of liquid level detecting device the most according to claim 4, it is characterised in that the mouth of pipe of described overflow pipe (4)
Higher than described second gear locking apparatus (152).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620600717.4U CN205679300U (en) | 2016-06-20 | 2016-06-20 | A kind of liquid level detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620600717.4U CN205679300U (en) | 2016-06-20 | 2016-06-20 | A kind of liquid level detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN205679300U true CN205679300U (en) | 2016-11-09 |
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ID=57430055
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| CN201620600717.4U Active CN205679300U (en) | 2016-06-20 | 2016-06-20 | A kind of liquid level detecting device |
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| CN (1) | CN205679300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432676A (en) * | 2021-06-28 | 2021-09-24 | 孚创动力控制技术（启东）有限公司 | Multifunctional liquid level detector |
| CN114088166A (en) * | 2021-11-18 | 2022-02-25 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
-
2016
- 2016-06-20 CN CN201620600717.4U patent/CN205679300U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432676A (en) * | 2021-06-28 | 2021-09-24 | 孚创动力控制技术（启东）有限公司 | Multifunctional liquid level detector |
| CN114088166A (en) * | 2021-11-18 | 2022-02-25 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
| CN114088166B (en) * | 2021-11-18 | 2024-04-30 | 东莞市西弗莱电子有限公司 | Oil level alarm switch |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215300 No. 35, Gongxing Hebei Road, Jingjiang Economic and Technological Development Zone, Taizhou City, Jiangsu Province Patentee after: Jiangsu Baoxin Technology Co.,Ltd. Address before: 215151 No. 17, Shiyang Road, Hushuguan Economic Development Zone, high tech Zone, Suzhou, Jiangsu Patentee before: SUZHOU BOAMAX TECHNOLOGIES INDUSTRIAL Co.,Ltd. |